ADDENDUM NO. 3 Tender Call No. 318-2016 CLOSING: 12:00 ... · D-102A (2 push plates and 1 Operator) D-102B (2 push plates and 1 Operator) D-102C (2 push plates and 1 Operator)

Michael Pacholok, Chief Purchasing Official and Director

Purchasing and Materials Management Division City Hall, 18th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2

Joanne Kehoe Manager Construction Services

Tender Call No. 318-2016 - Addendum No. 3

December 05, 2016 VIA Internet Posting (42 pages)

ADDENDUM NO. 3 Tender Call No. 318-2016

CLOSING: 12:00 NOON (LOCAL TIME), December 12, 2016 (REVISED)

For: The supply of all Labour, Products, Equipment and Supervision required to complete State-of Good Repair Works and Accessibility Improvements at Centennial Arena (Etobicoke), on behalf of the Parks, Forestry and Recreation Division of the City of Toronto

1. REVISED CLOSING DATE:

The closing date has been extended from December 8, 2016 to 12:00 noon, December 12, 2016

2. ADDITIONAL INFORMATION - Hazardous Substance Survey

For the reference of bidders and as part of the tender documentation, please find attached

the Hazardous Substances Survey, dated July 22, 2008 (12 pages) SK-1 and SK-2 dated Dec.05, 2016 (2 sheets) Detail Section - new Dasherboard, Typical (1 sheet);

3. REVISED: Section 4, Scope of Work, Specifications Section 15604 Refrigeration System & Equipment

Delete the specification Section 15604 as provided with the original tender documents and replace it with the attached revised refrigeration specification (Refrigeration System & Equipment, Section 15601, Issued as part of Addendum 3 - 20 pages

4. REVISIONS and CLARFICATIONS - Section 4, Scope of Work

Please note the following changes to the specifications and Drawings in the scope of work:

4.1. CHANGES: - Drawing R3 – Refrigeration Plan Refrigeration Work Schedule

– Delete drawing Standard Concrete Housekeeping Slabs and replace with the following:

Forming, steel reinforced and pouring of level concrete housekeeping pads for refrigeration equipment:

a) Four (4) compressor pads approx. 2032 L x 1118 W x 152 H (80” L x 44” W x 6” H).

i. Compressors MUST be grouted.

b) Four (4) cold floor brine pump pads approx. 1016 L x 559 W x 102 H (40” L x 22” W x 4” H)

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c) One (1) warm floor glycol pump pad approx. 991 L x 508 W x 102 H (39” L x 20” W x 4” H)

d) Two (2) condenser water tank pump pads approx. 991 L x 508 W x 102 H (39” L x 20” W x 4” H)

e) One (1) condenser water tank pad approx. 1372 L x 1372 W x 152 H (54” L x 54” W x 6” H)

4.2. CLARIFICATION: - Drawing R2 – Refrigeration Plan Ice Rink Details

– Rink Pipe Return Bend Fastening Detail shows the 32 O.D. polyethylene cooling pipes spaced at 89 O/C; the polyethylene cooling rink pipes shall be spaced at 102 O/C.

4.3. DELETE: - Drawing R4 – L) Items included in Refrigeration Scope of Work Items 2 – 7.

4.4. DELETE: - Drawing R4 - U Type Rink Pipe Chairs. Replace with: M-Type Rink Pipe Chairs.

4.5. ADDITION: - Opening to allow entry of refrigeration equipment into building to final mounting location.

Opening shall be located by the North East engine room wall. The exhaust fan, lights, cabinets and block wall shall be removed and reinstalled once refrigeration equipment is in place. Opening shall be approximately 2438 W x 3048 H (8’ W x 10’ H). Provide engineer -sealed shop drawings for shoring of area for wall opening.

Illustration to Item 4.5

4.6. CLARIFICATION: - Contractor shall provide the following roof penetration/coring for the following:

Necessary cutting and patching of all refrigeration piping penetrations through building roof.

a) 4 x 76 (3”) holes for compressor jacket cooling lines

b) 1 x 152 (6”) hole for Ammonia relief line

c) 1 x 51 (2”) hole for Ammonia fire line

Contractor to provide new dog house for the East and West condenser roof openings identified in the photo below:

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4.7. CLARIFICATION: - Contractor shall provide two (2) holes complete with patching through the building wall to accommodate 203 (8”) round duct for each dehumidifier. A total of three (3) new dehumidifiers shall be provided by the refrigeration contractor.

4.8. CLARIFICATION: - Contractor shall excavate and backfill trench for buried brine mains leading to the new buried headers for the West ice pad.


5. QUESTIONS AND ANSWERS:

The following are responses to questions received during the bid period.

Q1. What is the size, color, texture and make of the existing bricks? Please provide info especially the size.

A1. The existing bricks are described on the original plans as 4” face brick.

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Q2. Could the Consultant provide photos of the existing brickworks?

A2. Attached below please find a photo of the existing face brick.

Illustration to A2

Q3. What is the height of the concrete block planter wall to be relocated? Please provide info. Length was given at 20 meters long.

A3. The height of the concrete block planter wall varies from 0.28 m high to 0.5 m high, see photo below.

Illustration to A3

Q4. Can you forward lab results of the current brine charge (indicating any chromates present)?

A4. Lab reports are not available for distribution. For pricing purposes, the contractor is to assume that chromates are not present.

Q5. Further to Addendum No. 2, item A4 regarding the required number of push plates/operators (27), please clarify.

A5. Please note that it was intended to convey that there are twenty-seven (27) push plates or actuators or push buttons required for this project. The number of operators required for the

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push plates or actuators or push buttons is fourteen (14) as detailed on the electrical plan, Sheet No. E2, and as noted below:

D-101 (1 push plate and 1 Operator) D-101A (2 push plates and 1 Operator) D-101B (2 push plates and 1 Operator) D-102 (2 push plates and 1 Operator) D-102A (2 push plates and 1 Operator) D-102B (2 push plates and 1 Operator)

D-102C (2 push plates and 1 Operator) D-118A (2 push plates and 1 Operator) D-107 (4 push plates and 2 Operators) D-108 (2 push plates and 1 Operator) D-109 (2 push plates and 1 Operator) D-110 (4 push plates and 2 Operators)

Q6. Are we to use the 36” columns activators for all these doors as out-lined in the door schedule as well?

A6. The Toronto Accessibility Design Guideline Draft 75% Final document (TADG) requires the push plates or actuators or push buttons to be an elongated, 150 mm wide opener, where the top of the face plate is mounted 900 mm above the ground and the bottom edge with a maximum 200 mm above the ground (this is the preferred choice) OR a circular 150 mm diameter opener with the centreline mounted 900 mm to 1050 mm above the ground (this is the alternate choice).

Q7. Documents note works required for bleacher stairs, please provide the details?

A7. The existing bleachers (for the west rink only) have stairs in the centre which do not have handrails and this is to be rectified. Refer to attached sketches (SK-1 & SK-2) for works required at the existing bleacher (west rink only) north and centre stairs.

Q8. Will the city be providing the logos for the first sheet of ice mentioned in section 15601 part 1.10.1? If so, please provide QTY and size for each pad.

A8. Logos are not required (refer to the revised specification 15601).

Q9. The refrigeration specification describes refrigeration work, plus electrical, mechanical and structural work. What work is to be performed by the general contractor and what work is to be performed by the refrigeration contractor?

A9. The general contractor is responsible for supplying and installing all work specified in the Contract Documents (drawings & specifications). All work to be performed by workers with the appropriate experience and qualifications. The consultant/owner will not dictate which work is to be performed by which sub-trade, etc. We will hold the general contractor responsible for completing all work specified; general contractor to coordinate with their sub-trades to ensure that any work not being performed by a given sub-trade is covered in the general contractor’s pricing.

Q10. There is $5,000 cash allowance for Asbestos Abatement. Table of Content ( page 51 of 439) indicate 12 pages of State of Good Repair Audits. We are not able to locate this 12 pages report in the specifications. Please clarify.

A10. The State of Good Repair Audits (Phase 23) Hazardous Substance Survey (12 pages) is attached to this addendum.

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Questions and Answers for Dasherboards:

Q11. What kind of new overhead door is required for this project, rolling steel door or sectional door?

A11. Provide a new rolling steel door for this project, all openings to be site measured and verified by installing company and if spring pads or jamb extensions are required must be included with door prices.

Q12. The specifications call for aluminum framed dasher boards and the dasherboard notes on R7 state hot dipped galvanized frames, please confirm.

A12. The dasherboards shall have aluminum frames.

Q13. Dasherboard notes on R7 state to re-use netting; the specifications call for Clear Nylon, is it the intention for new netting, if so is the preference for Clear Monofilament or Nylon (Black or White)? Is the netting to be located as per the existing?

A13. A12. The existing netting is to be removed and stockpiled. The existing netting is to be reinstated once all dasherboards are in place on the new concrete ice rink.

Q14. Dasherboard notes on R7 states to stock pile glass and re-use, then it is followed by all tempered glass is to be 5’ high around. During the site meeting it was stated as all new 5’ high glazing, the specifications show 4’ high on the sides and 5’ on the ends/radii, please confirm.

A14. The existing dasherboard glazing is to be removed and disposed of off-site. New dasherboard glazing is required and shall be a constant height of 1524 (5’).

Q15. 2.02-B calls for HDR quick release posts without fasteners and 2.03-C.1 calls for regular glazing posts with screws to hold the face plate. Please confirm.

A15. Provide regular glazing posts with screws to hold the face plate as per 2.03-C.1.

Q16. 2.03.B.12 calls for the top row of kick strip screws to have a nylock nut; typical installations have a colour matched 25.4 (1”) L HiLo screw that is fastened into the white HDPE.

A16. Provide colour matched 25.4 (1”) L HiLo screw that is fastened into the white HDPE.

Q17. R7/2 is a cross section of an outdoor application.

A17. Attached is a new cross section for R7/2 of an indoor application.

Q18. Notes on R7/3 are detailed towards an outdoor application, should they be removed or edited?

a) 48” high dasher board in lieu of called out 42” high b) 16mm fibreglass puckboard in lieu of ½” HDPE c) 16mm kickstrip in lieu of ½” thick d) 19mm top sill noted on drawing; spec calls for 25mm.

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A19. Below are the edits for the above noted notes (a-d).

a) Dasherboards shall be 1067 (42”) high b) Puckboards shall be 12.7 (1/2”) HDPE c) Kickstrips shall be 12.7 (1/2”) HDPE d) Top sills shall be 19 (3/4) HDPE

Q19. Is there a backer panel required around the perimeter? If so, will it be 3/8” white HDPE around the entire perimeter?

A20. Provide new 9.5 (3/8”) HDPE backer panel around the entire perimeter of the new dasherboard system.

THE PERIOD FOR QUESTIONS IS NOW CLOSED.

Should you have any questions regarding this addendum contact Mike Voelker at e-mail [email protected].

Please attach this addendum to your RFT document and be governed accordingly. Bidders must acknowledge receipt of all addenda on the space provided on the Tender Call Cover Page as per the Process Terms and Conditions, Section 1, Item 8 - Addenda, of the Tender Call document. All other aspects of the Tender remain the same.

Yours truly Joanne Kehoe Manager, Construction Services, Purchasing and Materials Management

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State of Good Repair Audits (Phase 23) Hazardous Substance Survey

for Centennial Park Arena City of Toronto Parks, Forestry & Recreation Division

at Capital Projects Section prepared July 22, 2008

TABLE OF CONTENTS 1 INTRODUCTION .................................................................................................................... 2 2 BUILDING DESCRIPTION .................................................................................................... 2 3 REGULATIONS ...................................................................................................................... 2 4 SCOPE AND METHODOLOGY ............................................................................................ 3 5 DSS RESULTS ......................................................................................................................... 4 6 SUMMARY and RECOMMENDATIONS ............................................................................ 8 7 DISCLAIMER .......................................................................................................................... 9 APPENDIX A – Lab Analysis and Location Plan .......................................................................... 10 Prepared by: 2400 Meadowpine Blvd., Suite 102 Mississauga, ON L5N 6S2 Our File No.: 3025

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City of Toronto

KCL – 2008 Page 2

1 INTRODUCTION Kleinfeldt Consultants Limited (KCL) was retained by the City of Toronto (City) to conduct Designated Substance Survey (DSS) of the Centennial Park Arena located at 56 Centennial Park Road, Toronto. The purpose of the survey was to visually examine and evaluate the presence and condition of Designated Substances under the Ontario Occupational Health and Safety Act (RSO 1990). These substances include: Acrylonitrile, arsenic, asbestos, benzene, coke oven emissions, ethylene oxide, isocyanates, lead, mercury, silica and vinyl chloride. We have also added commentary about the presence of visible mould and polychlorinated biphenyls (PCBs). The survey is part of the State-of-Good Repair Audits of which KCL conducted in 2008.

2 BUILDING DESCRIPTION The Arena building was constructed in 1971 with renovations in 2000 and 2004. Building area is estimated at 54,300 square feet. Typical finishes include vinyl composite tile (VCT), rubber flooring, masonry brick, concrete block and exposed concrete steel and wood structures.

3 REGULATIONS The Ontario Ministry of Labour has issued several regulations under the Occupational Health and Safety Act for the above named materials. This report fulfills the Owner’s requirements under Section 30 of the OHSA; prior to tendering applicable project work (i.e. construction, renovation, demolition, etc.), the Owner must provide a report to the contractors tendering the work. The disturbance of asbestos materials during project work is also discussed in Ontario Ministry of Labour Regulation, O.Reg.278/05 – Designated Substance – Asbestos on Construction Projects and in Buildings and Repair Operations. The regulation stipulates removal procedures and notification requirements. Lead based paint, defined as 0.06% or greater, is controlled by the federal Surface Coating Material Regulation SOR/2005-109. Mercury use is controlled by O.Reg. 844, RRO 1990, Designated Substance – Mercury. Mercury disposal is controlled by O.Reg. 347, RRO 1990. Handling and production of silica is controlled by O.Reg. 845. Designated Substance – Silica. Waste management and transfer of PCBs are controlled by O.Reg. 362, RRO 1990 – Waste Management – PCBs.

Ozone depleting substances (OSDs) are controlled by O.Reg. 356, RRO 1990 – Ozone Depleting Substances – General.

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City of Toronto

KCL – 2008 Page 3

4 SCOPE AND METHODOLOGY

Scope KCL visually inspected and/or inquired with site personnel as to the possible presence of suspected designated substances. A 2004 DSS report by Construction Control Inc. was made available for review. KCL identified and recorded all known DSS within the building structure. The report does not respond to possible contaminants in soils or otherwise concealed in vessels and storage drums. KCL physically sampled only suspected asbestos containing materials (ACMs). Costs of abatements, where needed, were included in the State-of-Good Repair Audit spreadsheets.

Methodology The DSS was conducted the day of the building inspection (April 14, 2008) by Mr. John Kirkpatrick of KCL. Asbestos sampling generally concurred with the requirements of O.Reg. 278/05. Additional sampling however may be required as identified herein. Sampling consisted of both non-friable and friable materials. Samples were taken in inconspicuous locations. PCB identification on fluorescent ballasts was conducted in random areas and only if the fixture could be easily dismantled. Otherwise a judgment call, based on the age of the fixtures, was made on the presence of the PCB material. All areas of the building were inspected where access was provided. Access above solid surfaced ceilings, pipe chases and trenches were not part of the scope of the work.

Laboratory Analysis A total of one representative suspected asbestos bulk sample was submitted to EMSL Analytical Inc. for analysis of asbestos content using Analysis Method EPA 600/R-93/116. EMSL Analytical Inc. is certified under the National Voluntary Laboratory Accreditation Program (NVLAP) to perform asbestos analysis of bulk samples.

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City of Toronto

KCL – 2008 Page 4

5 DSS RESULTS

Acrylonitrile Definition: Acrylonitrile is a man-made chemical with sharp odour, colourless, volatile, and flammable, dissolves in water and evaporates quickly. Used as a chemical aid in the production of rubber and various polymers. Found in plastics, rubbers, and acrylic fibers. It is primarily released into the environment during chemical production in the chemical and plastic products industries. Canada does not produce Acrylonitrile, since 1972, but does import it from the U.S. The chemical can be ingested or inhaled. It affects the nervous system primarily. Although products within this building may contain traces of Acrylonitrile from the method of manufacturing, it is not considered a potential path for exposure.

Arsenic Definition: Arsenic is a naturally occurring element found in the earth’s crust. It is a semi-metallic chemical element found in two forms: Silver-grey and yellow crystalline solids. Arsenic is found in water, soil and food products. Exposure to arsenic is by contact, ingestion and inhalation. Arsenic and its compounds are considered toxic. Materials within the building that were known or found to contain arsenic include the pressure treated wood trench drain covers.

Asbestos Definition: Asbestos is the common name for a group of naturally occurring minerals. Asbestos fibers are resistant to heat and chemicals and is used widely for construction materials. Asbestos fibers are found in nature and so most everyone is exposed to asbestos during their lifetime. Exposure in high concentrations inhaled over a long period of time can cause serious disease (pleural plaques) and/or death. There is a latency period with the disease from 10 to 40 years. Most asbestos used in Canada and the United States is chrysotile (white). Other varieties include crocidolite (blue), amosite (brown) and fibrous varieties of anthophylite, tremolite and actinolite. Constructors, maintenance and custodial workers and mechanics face higher risk of exposure. Asbestos is found in some sprayed or trowel led surface materials, thermal insulation and miscellaneous materials (floor and ceiling tiles, shingles, roofing felts, transite sheets and piping, gaskets, valves, fire blankets, brake linings, clutches, etc. Suspected asbestos containing materials were sampled from, refer to Appendix A: Vinyl floor tile at the West Meeting Room. Asbestos materials were discovered in the vinyl floor tile. All piping is insulated with fiberglass materials only.

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City of Toronto

KCL – 2008 Page 5

Benzene Benzene is a colorless liquid with a sweet odour. It is highly flammable and is formed from both natural processes and human activities. Benzene is widely used in the U.S. and Canada. Benzene is used to make other chemicals to make plastics, paints, resins, nylon and synthetic fibers. Natural sources include volcanoes and forest fires, crude oil, gasoline and cigarette smoke. Primary source of exposure is through the ambient and indoor air. Benzene is considered a non-threshold toxicant. It can be found in the air, water and soil. Exposure is through inhalation or absorption through the skin. Although products within this building may contain traces of benzene from the method of manufacturing, it is not considered a potential path for exposure. There are no direct fumes or exhaust within the building produced from gasoline use.

Coke Oven Emissions Definition: Coke oven emissions are a complex mixture of coal and coke particles, vapours, gases and tars that include benzene, naphthylamine, cadmium, arsenic, beryllium and chromium. Coke oven emissions occur from the extraction of metals from their ores and is therefore primary exposure is in the industrial process. Chemicals recovered from coke oven emissions are used as a raw material for plastics, solvents, dyes, drugs waterproofing, paints, pipe coatings, roofing, insulation and sealants. Cancer is the major concern from the exposure to coke oven emissions. Although products within this building may contain chemicals recovered from coke oven emissions from the method of manufacturing, it is not considered a potential path for exposure. There are no coke ovens in the building and none in the vicinity of the property.

Ethylene Oxide Definition: Ethylene oxide is a colourless gas with a sweet odour and is extremely flammable. It is produced in large volumes and is used primarily as a chemical intermediate in the manufacture of several industrial chemicals including textiles, detergents, polyurethane foam, antifreeze, solvents, adhesives, etc. It is transported as a compressed gas in cylinders. We found no known traces of ethylene oxide or ethylene glycol in the building.

Isocyanates Definition: Isocyanates are a group of low molecular weight aromatic and aliphatic compounds containing the isocyanates group. They are the raw material from which all polyurethane products are made including flexible and rigid foams, fibers, and coatings such as paints, varnishes and lassoers. Exposure is typically through inhalation but can occur as a skin irritant. Exposure to isocyanates occurs through painting, foam blowing and the manufacture of products and coatings. The finished product is almost non-toxic unless it is burned or caused to generate dust. Although products within this building may contain isocyanates from the method of manufacturing, it is not considered a potential path for exposure.

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City of Toronto

KCL – 2008 Page 6

Lead Definition: Lead is a commonly used metal in industry and manufacturing. The metal is malleable. Lead is typically ingested where it causes significant health effects: Central and peripheral nervous system, digestive system, kidneys, blood and heart, thyroid and immune system. Lead can be found in older paint and coating materials. Lead based paint exceeding the 0.06% lead by weight concentration would occur in the older, darker coloured paints. If the paints are to be removed or disturbed or if they are present in areas where children or pregnant woman preside, it is recommended that they be covered over with non lead-based paints. During renovation or demolition activities, worker protection is required. Based on the age of this building, it is expected that lead-based paint be found under newer painted surfaces. Lead may be present in the soldered joints of copper piping found within this building.

Mercury Definition: Mercury is found naturally in the environment in several forms. It is a shiny, silver white liquid metal. Exposure, by ingesting, inhaling or touching, mercury will affect the nervous system. Manufactured materials include batteries, electric lamps (fluorescent and high intensity discharge), industrial and medical equipment such as thermometers, barometers, electrical switches, and gauges and for pigments in paints. Mercury is likely present in the high intensity discharge (HID) and fluorescent lamps used at the interior and exterior of the building. This in itself does not pose a problem. Disposal is to be in accordance to O.Reg. 844 and 347. We observed no mercury-based thermostats throughout the building.

Silica Definition: Crystalline silica or silica dioxide is a basic component of sand, quartz and granite rock. It is also found in sandstone, granite, flint, slate, etc. Materials include brick, concrete, mortar, slate, rock and stone, sand, topsoil and asphalt. Silica causes disease when workers breathe in tiny silica particles that are released from rocks and ores. Scar tissues can occur in the lungs that make it difficult to breathe called silicosis. All workers involved in rock drilling, masonry, jack hammering, excavation and tunneling are at potential risk. Although products within this building contain silica from the method of manufacturing, it is not considered a potential path for exposure. During renovation or demolition, methods of protection are required to control the exposure to the generated dust.

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City of Toronto

KCL – 2008 Page 7

Vinyl Chloride Definition: Vinyl chloride is a colourless, flammable gas. Vinyl chloride monomer is the parent compound of polyvinyl chloride (PVC). Products include all types of plastic containers, wrapping film, electric insulation, etc. It is used extensively in the U.S. and Canada. The main source of environmental releases is in the form of emissions and wastewater resulting from the production of PVC plastics. Exposure causes nerve damage and immune reactions. Although products within this building contain vinyl chloride from the method of manufacturing, it is not considered a potential path for exposure.

Other Issues PCB’s Based on the random visual ballast examination of the ballasts and the age of the fixtures, PCB containing ballasts are not considered to be present. T8 fluorescent fixtures are installed. As a precaution, any light fixtures and ballasts being decommissioned should be checked against the Environment Canada PCB identification document. If present, they are to be managed in accordance to O.Reg. 362.

Visible Mould The accessible areas of the building were free from visible mould.

Ozone Depleting Substances (ODS) Ozone Depleting Substances (ODS’s) may be present in the refrigeration and HVAC equipment within the building. At the time of the site visit, no visually damaged or leaking refrigeration or HVAC equipment was observed or reported on by site personnel. All ODS materials are to be disposed of in accordance with O.Reg. 356. The dehumidifiers employ ozone depleting refrigerant R22.

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City of Toronto

KCL – 2008 Page 8

6 SUMMARY and RECOMMENDATIONS Based on our findings, we find that the building has only minimal known hazardous substances as summarized below. Prior to renovations or demolitions, it would be prudent to provide further sampling of building materials as an additional means of assurance against possible contamination and exposure. Arsenic Maintain wood trench boards in good condition. Asbestos Asbestos materials were discovered in the vinyl floor tile at the West Meeting Room. Similar tile is found in the East Meeting Room and Snack Bar area. Additional testing is required to determine the full extent of the asbestos containing materials. Asbestos removals are estimated at $7.5K alone (excluding reinstatement of finishes). Allow removing during future retrofits. Lead Maintain painted finishes in good condition. Provide water testing to determine presence of lead from copper solder. Mercury Maintain HID and fluorescent fixtures and dispose of as per Ontario Regulations 844 and 347. Based on limited quantities, costs are not carried in this review. Silica Silica is found in all masonry and concrete components. Costs for abatement are covered under standard demolition work, which is not anticipated for this project. Ozone Depleting Substances (ODS) Maintain dehumidifiers in good condition and dispose of refrigerant as per Ontario Regulation 356.

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City of Toronto

KCL – 2008 Page 9

7 DISCLAIMER This report has been prepared for the sole benefit of The City of Toronto (The City). KCL understands that this report may be provided to and relied upon by City staff and retained contractors and as background information on the location and condition of designated substances within the building. Any other person or entity without the express written consent of KCL may not rely upon the report. Any use that a party makes of this report, or any reliance on decisions made based on it, is the responsibility of such parties. KCL accepts no responsibility for damages, if any, suffered by any party as a result of decisions made or actions based on this report. The information and conclusions contained in this report are based upon work undertaken by trained professional and technical staff in accordance with generally accepted engineering and scientific practices current at the time the work was performed. KCL makes no other representation whatsoever, including those concerning the legal significance of its findings, or as to the other legal matters addressed incidentally in this report, including but not limited to the application of any law to the facts set forth herein. With respect to regulatory compliance issues, regulatory statutes are subject to interpretation. These interpretations may change over time, thus The City should review such issues with appropriate legal counsel. The designated substance locations and conclusions provided are based on information obtained from visual inspection and limited sampling carried out, at the specific test locations, and information obtained from building maintenance personnel. The results can only be extrapolated to an undefined area around the test locations. It is possible that additional, concealed designated substances may become evident during demolition and/or renovation activities. The conclusions presented represent the best judgment of the assessor based on the nondestructive sampling carried out. Due to the nature of the material investigated and the limited data available, the assessor cannot warrant against undiscovered designated substances. This report was prepared by Mr. John Kirkpatrick and reviewed by Mr. Stephen Blaney.

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City of Toronto

KCL – 2008 Page 10

APPENDIX A

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KCL – 2008 Page 11

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City of Toronto

KCL – 2008 Page 12

CENTENNIAL PARK ARENA – SAMPLE LOCATION

x 1

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IN17

EXISTING PRECAST

BLEACHERS & STAIRS

MODIFICATIONS

PLAN OF EXISTING PRECAST

BLEACHERS & STAIRS

SCOPE OF WORK BLEACHER MODIFICATIONS

IN17

IN17

IN17

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IN17

EXISTING PRECAST

BLEACHERS & STAIRS

MODIFICATIONS

NEW HANDRAIL

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41.25

[1047.75mm]

FrameHeight

42.00

[1066.80mm]

FinishedHeight

3

4

" (19) NHL Gold

HDPE

1

2

" (12.7) White HDPE

Puckboard

1

2

" (12.7) x

8" (203)

NHL Gold

Kick Strip

54.00

[1371.60mm]

Anodized

Aluminum

Face Plate

And

Glazing Post

60.00

[1524.00mm]

New Tempered

Glass

1

4

" (6) Thick

Cast In Place

Anchor

Rink Width

85' [25908]

3

8

" (9.5) White HDPE

Backer

Rink Slab

3

4

" (19)

NHL Gold

HDPE

1

2

" (12.7) White HDPE

Puckboard

1

2

" (12.7) x

8" (203)

NHL Gold

Kick Strip

54.00

[1371.60mm]

Anodized

Aluminum

Face Plate

And

Glazing Post

60.00

[1524.00mm]

New

Tempered

Glass

1

4

" (6) Thick

Cast In Place

Anchor

3

8

" (9.5) White HDPE

Backer

Reuse Netting

1

4

" (6mm) - 20 J Bolt

3" x 3"

(76x76)

Closure Angle

Pending

41.25

[1047.75mm]

FrameHeight

42.00

[1066.80mm]

FinishedHeight

3" x 3" (76x76)

Closure Angle

Pending

SECTION - NEW DASHERBOARD, TYPICAL

R7

2

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REFRIGERATION SYSTEM & EQUIPMENT Etobicoke Centennial Arena Issued as part of Addendum 3 156 Centennial Park Road, Toronto Section 15601 - Page 1 of 20

PART 1 – GENERAL REQUIREMENTS 1.1 General 1.1.1 This section of the specification covers the design, supply and installation of equipment,

testing, start-up, and warranty for a new indoor ice rink and required refrigeration equipment as outlined below. The refrigeration component of this project is a design, supply and installation of the refrigeration system specified herein and as shown on the drawings (refrigeration drawings – R1 up to and including R7) and are only minimum requirements. It is the refrigeration contractor’s responsibility to complete

a detailed design of the new replacement refrigeration system. The design will be presented to the owner/consultant in the form of shop drawings. After shop drawing review, the refrigeration contractor will supply and install the refrigeration system including all equipment. It is clarified that the west rink slab is being replaced in its entirety, the east rink slab is remaining. The entire refrigeration plant is being replaced and the refrigeration equipment is to be set-up such that each rink slab can operate independently.

1.1.2 The drawings accompanying this specification are an integral part of the tender and the

construction documents. Contact the Owner’s representative for clarification of any conflict between the specification and the drawings.

1.1.3 The work shall be limited to qualified refrigeration contractors; refer to the City’s front-end

documentation for reference details/submission requirements. Refrigeration contractors

must be registered with TSSA and work shall be performed in accordance with the City's

Industrial, Commercial, Institutional "I.C.I." fair wage schedule. See page 427 of the tender

call.

For all other trade work where the work falls under the jurisdiction of the trades that City is

signatory to, shall be performed by firms with the applicable binding collective

agreement(s). See Page 425 of the tender call.

1.1.4 The contractor(s) involved in alterations to the refrigeration system shall hold a valid TSSA

Certificate of Authorization for Refrigeration Contractors.

1.1.5 Refer to the general conditions of the tender, as prepared by the Owner, for a project schedule and details concerning the completion date.

1.2 Scope of Work Summary 1.2.1 This section includes all ice rink equipment work called for, or implied, by the drawings and

specifications, together with all necessary incidentals, whether referred to or not, as will be required to complete the work to the full intent and meaning of the drawings and specifications.

1.2.2 The ice rink refrigeration system work includes, but is not limited to the following:

1. Utilizing a refrigeration Ammonia pump out trailer, remove Ammonia charge for disposal

2. Pump out brine from east and west rink and dispose of offsite 3. Remove & dispose of all refrigeration equipment

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4. Remove & dispose of specified dehumidifiers 5. Supply & install cold brine mains and header for West rink 6. Supply & install all necessary refrigeration floor materials for an ice surface of

approximately 85’ x 185’ pipe supports, polyethylene rink pipe, stainless steel gear clamps and u-bends

7. Supply & install a built up Ammonia refrigeration system 8. Supply & install smart reciprocating compressors 9. Supply & install smart plate & frame chillers 10. Supply & install surge drums 11. Supply & install underfloor shell & tube heat exchanger 12. Supply & install evaporative condensers 13. Supply & install condenser water tank 14. Supply & install cold floor brine pumps 15. Supply & install warm floor glycol pump 16. Supply & install condenser water pumps 17. Supply & install jacket cooling pump 18. Supply & install starter panel 19. Supply & install 6000E DDC controller 20. Supply & install Ammonia leak detector 21. Supply & charge new Ammonia & brine 22. Supply & install new e-stop 23. Reuse East Pad 24. Supply & install electric desiccant dehumidifiers 25. Reuse North dehumidifier on the East pad 26. All necessary power & control wiring between starter panel and refrigeration

equipment. 27. All necessary ammonia and brine insulation. 28. Supply & install Rink Seal Pro maintenance product 29. Minimum two (2) year warranty 30. Start-up & commissioning 31. Existing Building Automation System (BAS) programming modifications and

commissioning under cash Allowance. 1.3 Design 1.3.1 The refrigeration contractor shall create and submit all refrigeration design drawings to the

consultant, these will be reviewed as part of the shop drawing review process. Also include design drawings for all associated civil/structural/electrical/mechanical work required for the new refrigeration system/equipment.

1.3.2 Submit all equipment drawings and documentation to the consultant for review prior to

fabrication. 1.3.3 Submit ice rink refrigeration equipment operation and maintenance manuals as detailed in

General Requirements section. 1.3.4 Civil/Structural Work

a. Make provisions for all additional supports as required for chiller and evaporative condenser; concrete housekeeping pads for compressors, pumps, etc.

b. Provide opening(s) to allow entry of equipment into building and to its final location inside the building.

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c. All cutting and patching through walls, ceilings and floors to allow the passage of piping and ductwork.

d. Provide temporary water and electric power for lighting and power tool operation. e. Additional material/labour as required by boiler inspector, hydro inspector, health

inspector, building inspector, etc. f. Removal of any redundant concrete housekeeping pads. g. Cutting, patching, sleeving, sealing and fireproofing of floor, wall and ceiling openings

for all refrigeration system piping and related electrical conduits. h. Provide two (2) holes through the building wall to accommodate 8” round duct for each

dehumidifier. A total of three (3) new dehumidifiers shall be provided by the refrigeration contractor.

i. Necessary cutting and patching of all refrigeration piping penetrations through building roof.

j. 4 x 3” holes for compressor jacket cooling lines k. 1 x 6” hole for Ammonia relief line l. 1 x 2” hole for Ammonia fire line m. Direct outside wall opening and interior passageways for rigging of refrigeration

equipment into the mechanical room. n. Opening shall be created by the North East engine room wall. The exhaust fan and wall

shall be removed and reinstalled. Opening shall be approximately 8’ W x 8 H’ o. Breaking up and removal of existing concrete bases, piers and rubble.

a. Six (6) compressor housekeeping pads b. One (1) motor control centre housekeeping pad c. Four (4) shell & tube chiller housekeeping pad piers d. Two (2) cold floor brine pump housekeeping pads e. One (1) warm floor glycol pump housekeeping pad

1.3.5 Electrical Work

a. Obtain power from existing sources. The refrigeration contractor shall do all electrical work including control panel and control wiring for the refrigeration system components and as noted on the drawings or specifications.

b. Provide all electrical working, new starters as required and controls for the modified refrigeration systems, and all miscellaneous items in this section supplied by the refrigeration contractor.

c. All equipment shall be CSA approved and the complete installation shall meet the latest requirements of the Canadian Electrical Safety Code.

d. Complete all power and control wiring and connections for the new controls systems and interface with existing BAS.

e. Electrical power supply and conductors terminated at ice refrigeration starter panel disconnect switch lugs and DDC control panel.

f. 120V power to the Ammonia leak detector and run control wiring from the Ammonia leak detector to exhaust fan(s) and damper(s).

g. Necessary electrical interlock wiring from refrigeration starter panels to Refrigeration Compressor Room exhaust fan control circuit.

1.3.6 Mechanical Work

a. Supply and install all pipe and vessel insulation as required for this project b. 1” cold water service with valved back flow preventer inside the Refrigeration

Compressor Room for initial system filling. c. Floor drain in Refrigeration Room.

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1.3.7 Shop Drawings: a. All shop drawings to be stamped (signed and dated) by a professional engineer,

licensed to practice in Ontario with five (5) years professional refrigeration experience. b. The following drawings must be submitted for review prior to plant installation:

Refrigeration room layout Refrigeration flow diagram Brine piping and excavated trench layout Brine piping section & details Brine piping layout Wiring diagram

1.3.8 Submit and register all pressure vessels and systems with the TSSA. 1.3.9 Provide all associated components (not shown or specified) but which are necessary to

complete the refrigeration system in order to produce and maintain satisfactory ice conditions.

1.3.10 Provide framed schematic flow diagrams with all valves marked and tagged for installation

in the Mechanical Room.

1.4 Design Criteria

Provide specified components for a complete and automatic flooded glycol refrigeration system under the following specified design criteria.

West Rink

1. Ice Surface Size: Approximately 56.388m long (185') by 25.908m wide (85') 2. Rink Duty: Interior Arena Artificial Ice Pad East Rink

1. Ice Surface Size: Approximately 56.388m long (185') by 25.908m wide (85') 2. Rink Duty: Interior Arena Artificial Ice Pad

Primary Refrigerant Ammonia Cooling Secondary Refrigerant 21% Calcium Chloride Warm Floor Secondary Refrigerant 45% Ethylene Glycol Jacket Cooling 50% Ethylene Glycol Evaporating Temperature 10°F Condensing Temperature 95°F Wet Bulb 77.2°F Brine Inlet Temperature 17.9°F Brine Outlet Temperature 15.0°F Power: 3/60/575 volt (Power), 1/60/120 volt (Control)

Referenced Codes and Standards 1.5.1 Refrigeration Contractor to comply with all codes and standards applicable to this type of

work, including:

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.1 CSA B52-99 Mechanical Refrigeration Code

.2 CSA B51-03 Boiler, Pressure Vessels and Pressure Piping Code

.3 TSSA Operating Engineers Act

.4 ASME Boiler and Pressure Vessel Code, 2004 Section VIII, Pressure Vessels, Div. 1

.5 Technical Standards and Safety Act, 2000 for Operating Engineers

.6 TSSA Piping System Design Registration

.7 ANSI B31.5-2001 Refrigeration Piping

.8 CSA and Local Electrical Safety Codes

.9 Ontario Occupational Health and Safety Act for Industrial Establishments

.10 WCB Regulations 1.6 Quality Assurance A. The refrigeration contractor shall use only licensed high pressure welders, each holding

a current, active certificate with TSSA.

B. Workmanship throughout shall conform to standard of best practice; labour employed shall be competent to do the work. Piping shall run straight between fittings. Vertical piping shall be plumb and horizontal piping shall be parallel with walls whenever possible. Unnecessary offsets and elbows shall be avoided. Piping shall be solidly supported in place. Piping that crosses an open space that affords passageway shall be not less than 7’-3” above floor unless the piping is against the ceiling

. C. The refrigeration system shall be commissioned by a qualified refrigeration journeyman

mechanic (no apprentices permitted). D. The refrigeration contractor shall be able to provide warranty service work to the

equipment after installation for the warranty period specified. 1.7 Warranty A. The refrigeration contractor shall warrant the material and installation specified

hereunder against original defects in manufacture and workmanship for a minimum period of two (2) years after acceptance by the Owner.

1.8 Manuals and As-Built Drawings A. Provide three (3) copies of operating and maintenance manuals for all ice rink

equipment covered under this contract, including as-built drawings. B. Manuals shall be bound in 3 ring binders and contain, as a minimum, the following;

1. System operation and maintenance instructions, troubleshooting guidelines and operating log.

2. Safety bulletins and material safety data sheets. 3. Equipment operation and maintenance instructions. 4. Signed TSSA Test Data Reports

C. As-built drawings shall contain, as a minimum, the following; 1. All wiring and flow schematics. 2. Refrigeration equipment layout and schedule.

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D. All of the closeout documents (including the above) are also to be provided in PDF. 1.9 Refrigeration Compressor Room

.1 Modify as needed existing Mechanical Room constructed to Class ‘T’ requirements in

accordance with current edition of the CSA B52 Mechanical Refrigeration Code. .2 Modify as needed existing Mechanical ventilation system including an exhaust fan and

fresh air make-up in the Refrigeration Compressor Room to meet the current edition of CSA B52 Mechanical Refrigeration Code and suitable for ammonia refrigerant.

.3 Removal of any redundant concrete housekeeping pads.

.4 Form and place concrete housekeeping pads with steel reinforcing as required for all new equipment. Concrete base to be finished level. Grouting as required.

1.10 Start-up and Ice Making

.1 Necessary ice paint or installation of first sheet of ice.

.2 Owner to provide a qualified operator to operate the refrigeration plant after commissioning and training is provided by the ice rink refrigeration contractor.

.3 After the concrete is cured and the rink slab pull down procedure is completed, the General Contractor shall install the first sheet of ice on the new rink floor.

PART 2 - SYSTEM REQUIREMENTS

2.1 DEMOLITION OF EXISTING REFRIGERATION EQUIPMENT Refrigeration equipment, piping, valves, hangers, etc are to be removed for disposal by the refrigeration contractor. The refrigeration equipment demolition list specified is required but not limited to;

1. Six (6) reciprocating compressors 2. Two (2) shell & tube chillers 3. Two (2) evaporative condensers 4. One (1) underfloor shell & tube heat exchanger 5. One (1) condenser water tank 6. Two (2) cold floor brine pumps 7. One (1) warm floor glycol pump 8. Two (2) condenser water pumps 9. One (1) motor control centre 10. Two (2) mechanical dehumidifiers in the West rink 11. One (1) mechanical dehumidifier in the East rink 12. One (1) Ammonia leak detector 13. Brine expansion tanks 14. One (1) set of trench headers in the West rink 15. All brine mains leading to the West rink 16. All ammonia refrigerant lines including fire and relief 17. All brine lines within the engine room 18. All Ammonia and brine refrigerants

Existing refrigeration controls shall remain. Any modifications, integration or upgrades required will be under a cash allowance.

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2.2 NEW REFRIGERATION EQUIPMENT Manufactures and equipment specified below are for the purposes of setting a minimum

standard of capacity and quality of equipment for the performance of the ice rink system. The refrigeration contractor is responsible for ensuring that the new equipment design and installation is capable of providing a properly functioning refrigeration system. The West Pad and East Pad refrigeration system shall be supplied & installed as independent systems. Each system shall contain;

Major Equipment Number of Equipment -

West Pad Number of Equipment -

East Pad Compressors 2 2 Chiller 1 1 Surge Drum Common/Shared Common/Shared Oil Pot Common/Shared Common/Shared Condenser 1 1 Condenser Water Tank Common/Shared Common/Shared Cold Brine Pump 1 1 Condenser Water Pump 1 1 Compressor Jacket Pump Common/Shared Common/Shared Cold Floor Expansion Tank 1 1 Overflow Expansion Tank 1 1 Water Treatment System Common/Shared Common/Shared Dehumidifier 2 1 Starter Panel Common/Shared Common/Shared DDC Rink Controller Common/Shared Common/Shared

1. Compressors

Four (4) Mycom N2M Capacity: 35.7 tons per compressor Mycom M Series Reciprocating compressors

a) Shall include oil cooler and heads b) Crankcase heater s/w thermostat c) Jacket cooling shut off and solenoid valves d) Oil charging valve and drain check valves e) DOT mounted and piped c/w float drainer and side relief valve connection f) DOT built per ASME and supplied with CRN and furnished with manufactures data

report g) Discharge check and shut off valves h) Flywheel i) Motor pulley and belts j) Motor slide base and mounted of motor k) OSHA belt guard l) Structural steel vase m) Compressor suction & discharge thermometers and jacket cooling thermometer n) Compressor toolset o) 50 HP NEMA premium motor p) Cutout panel mounted c/w the following gauges and safety controls, pre-wired in series:

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i. LP Gauge R717 ii. Oil Pressure Gauge iii. Low Pressure Cutout iv. High Pressure Cutout v. Oil Failure Switch vi. High Oil Temperature Switch

2. Plate & Frame Chiller

Two (2) Plate & Frame Heat Exchangers c/w stainless steel drip pan Capacity: 85 Tons per chiller Alfa Laval MK15BW-FD Semi-Welded Plate Heat Exchanger DWP Hot Side: 150.0 psi DWP Cold Side: 250.0 psi Brine Temperature Outlet: 15.0°F Brine Temperature Inlet: 17.9°F Plate Construction: Titanium

3. Ammonia Vertical Surge Drum

One (1) Ammonia Surge Drum c/w; a) 2” FIP Insulation

CIMCO ASME Pressure Vessel Sized to suit

4. Oil Pot

One (1) Oil Pot c/w stainless steel drip pan CIMCO ASME Pressure Vessel

5. Evaporative Condenser Two (2) Evaporative Condensers Capacity: 1,325 MBH per condenser Evapco LSC-135E Secondary Coil: 50% Ethylene Glycol Approximate Overall Dimensions: 11’ 11.750” L x 4’ 0.625” W x 7’ 11.500” H Operating Weight: 6,570 lbs

a) Shall utilize an external pump and water tank b) Shall include a separate circuit for compressor jacket cooling c) Shall be oversized for dry operation d) Perimeter handrails e) Aluminum ladder with 3’ extension f) Shall be CRN rated

6. Underfloor Shell & Tube Heat Exchanger

One (1) Shell & Tube Heat Exchanger CIMCO ASME Pressure Vessel Sized to suit

7. Cold Floor Brine Pump

Two (2) Cold Floor Brine Pump S.A. Armstrong Pump Series 4030 Flow: 800 USGPM Base Mounted Centrifugal Pump

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8. Cold Floor Brine Pump Standby

Two (2) Cold Floor Brine Pump Standby S.A. Armstrong Pump Series 4030 Flow: 800 USGPM Base Mounted Centrifugal Pump

9. Warm Floor Brine Pump

One (1) Warm Floor Brine Pump S.A. Armstrong Pump Series 4030 Flow: 260 USGPM Base Mounted Centrifugal Pump

10. Condenser Water Pump

Two (2) Condenser Water Pump S.A. Armstrong Pump Series 4030 Flow: 245 USGPM Base Mounted Centrifugal Pump

11. Compressor Jacket Pump

One (1) Compressor Jacket Pump Flow: 25 USGPM S.A. Armstrong Pump Series 4380 Vertical Inline Pump

12. Cold Floor Brine Filter Two (2) Cold Floor Side Stream Brine Filter Stainless Steel Construction Replaceable 25 micron bags

13. Chemical Water Treatment System

One (1) Chemical Water Treatment System Chem-Aqua 61502 c/w;

a) Chemical Liquid- Pre-op CHEM-AQUA 61502, 10 LT / 10 KG - Preoperational Cleaner

b) Chemical Liquid- Pre-op Chem-Aqua 655T, 26 KG - Pre-operational Passivation Treatment

c) Chemical Liquid- Pre-op Chem-Aqua 2- Pre-operational Treatment- Evaporative Cooling Systems 10 Lit / 12 Kgs

d) Chemical Liquid - Cooling Tower Chem-Aqua Quatic 2550 19 L/ 21 Kg - Scale & Corrosion Inhibitor

e) Chemical Liquid - Cooling Tower CHEM-AQUA COOLACIDE, 19 LT / 19 KG - Micro-biocide

f) Chemical Liquid - Cooling Tower CHEM-AQUA- ACTICHLOR, 19 LT / 24 KG, CN CA - Micro-biocide

g) CoolPak800 S- Dual - Board mounted package with access board, conductivity controller, 6 chemical feed pumps and 2 bleed valves

h) Test Kit Palintest PK-158 organophosphonate i) Conductivity tester- HANTRON HT-3P a. Contact Water Meter 1" b. Contact Water Meter 3/4"

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c. Commissioning & Training

14. Dehumidifier West Rink Two (2) Electric Desiccant Dehumidifiers CDI MS2600 Electric Dehumidifier

a) Supply and install appropriately sized spiral ductwork from reactivation inlet/outlet to the outside

b) Supply and install appropriately sized silencer on the outlet of the new unit c) Supply and install a humidistat and wiring d) North West dehumidifier shall be rewired e) South West dehumidifier wiring can be reused f) Platform shall be reused

15. Dehumidifier East Rink

One (1) Electric Desiccant Dehumidifier CDI MS2600 Electric Dehumidifier

a) Supply and install appropriately sized spiral ductwork from reactivation inlet/outlet to the outside

b) Supply and install appropriately sized silencer on the outlet of the new unit c) Supply and install a humidistat and wiring d) East rink dehumidifier wiring can be reused e) Platform shall be reused

16. Starter Panel West Pad

a) Supply & install one (1) 3/60/575V starter panel complete with the following starters;

Compressor # 1 50 HP RVSS c/w Built in Bypass Starter




Cold Brine Pump West Pad 25 HP FVNR Cold Brine Pump West Pad

Standby 25 HP FVNR

Cold Brine Pump East Pad 25 HP FVNR Cold Brine Pump East Pad

Standby 25 HP FVNR

Warm Glycol Pump East/West 7.5 HP FVNR Condenser Water Pump # 1 7.5 HP FVNR Condenser Water Pump # 2 7.5 HP FVNR Compressor Jacket Pump 3 HP FVNR Condenser Fan Motor # 1 15 HP VFD c/w Bypass Starter Condenser Fan Motor # 2 15 HP VFD c/w Bypass Starter

b) All electrical components must be housed in a NEMA12 enclosure complete with

convection vents c) Each motor must have an on/off/auto selector switch mounted on the door of the control

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d) Individual pilot lights e) Non-fused control transformer f) FRS fusetron fuses g) Terminal blocks h) Overloads i) Descriptive lamacoids j) Suction & discharge gauge board k) Door mounted reset button l) Cimtronics

17. Condenser Water Tank

One (1) Common Condenser Water Tank ACO Container OT-1000E PE 1.9 SG Open Top c/w;

a) One (1) Lid for OT-1000 Tank b) Two (2) Spool Flange PVC – 5” c) Two (2) Flange Gasket – EPDM – 5” d) One (1) Spool Flange – PVC – 4” e) One (1) Flange Gasket – EPDM – 4” f) One (1) Tank Adapter PVC – EPDM 1 ½” g) One (1) Tank Adapter PVC-EPDM – 1” h) Overflow Drain i) One (1) Ultrasonic Level Sensor. Float ball valve is not acceptable

18. Closed Bladder Tank

One (1) Compressor Jacket Cooling Bladder Tank c/w air scoop and vent S.A. Armstrong Bladder Tank Sized to suit

19. Cold Floor Expansion Tanks

Two (2) Cold Floor Expansion Tanks ACO Containers RT-300 HDPE c/w;

a) Two (2) Tank Adapter PVC-EPDM – 1 ¼” Per Tank

20. Warm Floor Expansion Tank One (1) Warm Floor Expansion Tank ACO Containers RT-100 HDPE c/w;

a) Two (2) Tank Adapter PVC-EPDM – 1 ¼” Per Tank

21. Overflow Expansion Tank ACO Containers OT-36 HDPE Two (2) Overflow Expansion Tank c/w

a) One (1) Tank Adapter PVC-EPDM – 1 ¼” Per Tank 2.3 DDC CONTROL SYSTEM DDC CONTROL SYSTEM

1. DDC Control System One (1) 6000E DDC Control System

A complete custom designed DDC Control system will be installed for controlling the refrigeration system. Control of unit will be BACNET compatible for interconnecting to building automation system.

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a) Controls will be assembled in appropriate enclosure. The elements in front of the enclosure will be indicated by means of engraved plate. All the wiring inside the panel will be routed inside appropriate dimension wire duct.

b) Enclosure will be manufactured with the following characteristics: hinges doors. Electrostatic factory paint of gray color, Interior components such as transformer, fuses relays, programmable controllers, will be assembled on a dismountable back plate, the installation of component directly on the panel will not be accepted.

c) Each panel will be designed for a power supply 120 volts ac 15 amps maximum and will be protected by a suitable integrated circuit breaker and will have a double service socket to power 115-volt laptop and router.

d) Wiring connection of cables coming from outside the enclosure will have to connect to a terminal block with the exception of the wires connecting to the Input side of the programmable controllers.

2. Sensors

All transmitters will be electronic type with 4-20ma control signal. The control system will control the refrigeration equipment based on information received from the following field sensors,

a) Cold brine supply temperature b) Cold brine return temperature c) Compressors discharge pressure d) Compressors suction pressure e) Outdoor air temperature and humidity f) Compressor oil temperature g) Status inputs from all, pumps, compressors & fans.

3. Operation Workstation

Provide the following minimum configuration for the operator workstation:

a) Intel Pentium G640T Dual Core 2.40GHz Processor b) 2GB RAM Memory c) 500GB HDD d) 24” LCD Flat Screen Monitor e) DVD Writer f) 8 USB 2.0 ports g) Intel Graphics Media Accelerator HD Graphics Card h) USB Optical Mouse i) Windows 7 – 64 Bit j) Orcaview version 3.33 software k) Animated 3-D graphic library l) Long-term trending for data archiving up to one year

4. DDC Controller

a) The native BACnet DDC controllers will be mounted in CSA certified control panel installed locally in the building as close as possible of controlled equipment.

b) The DDC controller supports peer-to-peer data communication between BACnet/IP, Ethernet, BACnet MS/TP, and BACnet PTP networks.

c) The DDC controller will have a Native BACnet system with all inputs, outputs and variables available as standard BACnet AI, BI, AO, BO, AV and BV objects.

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d) The DDC system will utilize high- speed networks using Ethernet between the major controllers and the HMI. Between major and secondary controllers, the DDC system will use BACnet/MSTP.

e) The DDC HMI will be capable of communicating with other HVAC manufacturer’s

equipment using industry-standard BACnet protocol. Connection by others. f) The DDC application controllers when connected together using BACnet MS/TP

protocol over EIA-485 can have their firmware upgraded without disconnecting them from an active network.

g) The DDC controllers will be able to support real-time programming using GCL+. These programs must reside in specific controllers. When changes are made in these programs, it must be instantly modified and updated as soon as ‘’OK’’ or ‘’APPLIED’’ is

pressed in GCL editor. h) Each controller will have a specific network address using Derived Network Addressing.

i) The DDC system will be able to communicate with other peripheral controllers using

Modbus. j) The DDC control system will be able to automatically detect a third party BACnet device

and update the network tree. k) Control System will have the possibility with added hardware to communicate with other

vendors’ equipment using MODBUS protocol. l) The DDC controller will be capable of the following functions:

i. Control all the refrigeration equipment and associated components directly. The DDC controller will not depend on any other CPU or computer to perform this function. Loss or failure of the operator workstation will in no way affect the operation of the refrigeration equipment.

ii. Provide scheduling for the temperature set points. Schedules will include, day mode, night mode and game mode settings. The controller will be capable of scheduling at least 4 different on/off periods per day for each 7-day schedule.

iii. Each ice surface will have its own unique set of schedules iv. Each ice surface will have a trend log associated with it. As a minimum, the

DDC system HMI shall store to hard drive, readings of temperature set points, actual temperature, supply temperature and return temperature.

v. All compressors, pumps and fans will have their own individual trend logs. The trends will show readings of equipment status, i.e. on/off or fail, and the associate control variable relevant to that equipment, i.e. temperature, pressure etc.

vi. The controller will log run hours and # of starts for each pump, compressor and fan.

vii. The controller will monitor all temperatures, pressures, refrigerant gas levels and equipment status for alarm conditions. The alarm set points shall be adjustable by the operator with the appropriate password.

viii. Upon an alarm condition, a message will appear on the operator interface indicating what the alarm condition is and time it occurred. The alarm occurrence will be recorded to the HMI hard drive as a permanent record.

ix. Acknowledgment of the alarm will clear the alarm and the acknowledge occurrence will be recorded to the HMI hard drive as a permanent record.

x. The DDC system will have the ability to dial out to one or more alphanumeric pagers and generate a specific alarm message for each alarm incident including date and time stamp.

xi. The DDC system will have the ability to send an alarm message via email to an email recipient or to a cell phone equipped with text-messaging capability. It shall

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generate a specific alarm message for each alarm incident including date and time stamp.

xii. The DDC controller will be capable of being monitored remotely from any location via phone line, or Internet. Remote diagnostics, software maintenance, graphics updates and setpoint adjustments shall be possible with remote communications.

xiii. The DDC controller will be password protected. It will have a minimum of 4 password levels – programmer/engineer, service technician, supervisor/operator and view only.

xiv. The DDC Controller will have a run-time equalization feature for the system compressors

xv. The DDC Controller will allow the system to operate based on a Dry Bulb optimization routine.

5. Graphical Interface Software

a) Provide graphical operator interface software with graphics screens created specifically for this project.

b) The operator software will have the ability to generate graphical views that present system information as objects or icons along with numerical information in an easy to understand format.

c) The operator software will allow navigation through the screens by navigating with a mouse. Other than entering numerical values, key entries shall be kept to a minimum.

d) The operator software will allow for restricted access to set points and selected information depending on the password level of the operator.

e) The operator software will allow for editing of set points, alarms, and schedules. f) The operator software will allow the display of trends, equipment screens, run-hours,

flow screens, sensor values etc. g) A screen specific help icon will be available on each screen providing the user with

relevant information. h) Minimum graphic requirements are:

i. Logon graphic ii. Main project graphic iii. Flow graphic iv. One schedule graphic per ice surface v. One graphic for each piece of refrigeration equipment vi. One graphic for each trend lo vii. Set point graphic(s) viii. Alarm graphic(s) ix. Runtime data graphic(s)

6. Remote Communications Software

Provide owner with the software necessary for remote communications via Internet.

7. Commissioning The refrigeration contractor will provide a competent experienced technician for control system commissioning. Refrigeration contractor employees will accomplish commissioning.

8. Training

Once the system is commissioned the operating contractor shall provide a minimum of 4 hours training at the project location for the operating staff. The control system contractor will provide a system training video on the HMI PC.

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9. Owner Supplied Internet Connection

The owner shall supply an Internet connection to the HMI PC to enable remote communications and monitoring.

2.4 ADDITIONAL REFRIGERATION EQUIPMENT MISCELLANOUS EQUIPMENT

1. Ammonia Gas Leak Detector One (1) Ammonia Gas Leak Detector CIMCO E200 Gas Leak Detector Local audible, visual alarms, silence button, relay outputs and one Ammonia sensor.

2. Emergency Fire Box One (1) Emergency Fire Box Dimensions: 16" x 12" x 10"

RINK FLOOR COOLING SYSTEM

1. Supply and install (including co-ordination with other sections) material for a refrigerated concrete slab using the following;

a) Cooling Brine Buried Headers Header pipes shall be schedule 40 ASTM A53 grade A or B ERW pipe. Nipple pipes shall be ¾” schedule 80 ASTM A106 grade A or B seamless pipe welded at 4” centres. All pipes shall be new, straight and true before fabrication. Nipples shall not protrude into the headers. Support headers on steel channel at minimum 8 feet centers. Headers shall be factory fabricated, pressure tested and painted. Headers are to be located inside the rink, across the full width of the rink.

b) Rink Cooling Floor Piping Rink floor cooling piping shall be installed on 4” centres. All rink floor piping shall be 1.05” ID x 1.25” OD linear low density, virgin polyethylene resin, CSA approved pipe

specifically manufactured for rink use. The only permitted connections or joints in the cold floor piping shall be at the headers and at the 180° PVC return bends. Pipes shall be fastened to the header and return bends via stainless steel clamps with carbon steel screws, two (2) clamps are required per pipe connection.

c) Rink Pipe Supports Supply and install pipe chairs made of steel rod fabricated with a 3” wide, 24 gauge

steel plate on the bottom. Pipe lift shall allow for a 44mm [1¾”] maximum concrete over

the top of rink piping. Rink pipe supports shall space the cooling rink floor piping on 102 mm [4”] centers and placed in rows on 610mm [2’-0”] centers down the length of the

rink. Overlap each rink pipe support by one (1) pipe at the end of each support. d) Access Vent Boxes

Supply and install valve access vent boxes in the rink floor perimeter, one adjacent to each end of the cooling brine distribution headers. Provide one (1) ¾” ball valve

connected to each end of the supply and return header. Mount the appropriate valve box. The access boxes shall have a removable cover positioned below grade to suit the mount with top of perimeter concrete. The landscaping section shall provide excavations, backfill and compact clean sand to the underside of the valve boxes. The same section shall place and pavers over the access boxes after the rink floor is poured and commissioned.

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Manufacture: CTSO-Polymer Concrete Vault 17 x 30 e) Buried Cooling Brine Piping

Supply and install steel piping in an excavated trench from the engine room and connect to cooling headers. Paint piping then insulate with DOW SM and cover with Blueskin WP200 water proof membrane suitable for buried pipe application. Refer to pipe and vessel insulation to exposed piping.

REFRIGERANT PIPING AND VALVES

1. All Ammonia refrigerant piping shall conform to the latest edition of the ASME B31.5 Refrigeration Pressure Piping Code and CSA B52 Mechanical Refrigeration Code

2. All refrigerant piping 1" and larger shall be socket welded or butt-welded. All refrigerant piping

up to and including ¾" shall be threaded or socket welded

3. All Ammonia pressure relief valves shall be sized and piped to a suitable location as defined in the CSA B52 Mechanical Refrigeration Code

4. The refrigeration contractor shall supply & install all required Ammonia isolation valves, control

valves, pipe, fittings between refrigeration equipment.

5. Supply and install one (1) Ammonia Hansen Technologies HT300N high side float complete with a total of three (3) Ammonia isolation valves.

6. Supply and install Ammonia equalizing line between evaporative condensers and high side float

complete with a total of two (2) purge valves and two (2) Ammonia isolation valves. One (1) for each condenser equalizing line.

7. Supply and install two (2) Ammonia isolation valves for each evaporative condenser. One (1) on

the Ammonia high stage discharge and one (1) on the Ammonia condenser drain line.

8. Supply and install one (1) Ammonia high stage dry suction shut off valve.

9. Oil drain shall come complete with one (1) Ammonia isolation valve and one (1) dead man valve.

10. Supply and install one (1) Ammonia three-way valve and two (2) pressure relief valves for the

following equipment;

a) 1 x Plate & Frame Heat Exchanger Chiller East Pad b) 1 x Plate & Frame Heat Exchanger Chiller West Pad c) 1 x Surge Drum

11. Supply and install one (1) pressure relief valve for the following equipment;

a) 4 x Reciprocating Compressors b) 4 x Reciprocating Compressor Oil Separators c) 1 x Oil Pot d) 1 x Underfloor Shell & Tube Heat Exchanger

12. Supply and install one (1) common Ammonia relief line complete with diffuser.

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13. Supply and install one (1) Ammonia fire line with firebox and a two (2) Ammonia hand

expansion valves BRINE, GLYCOL, WATER PIPING AND VALVES

1. Brine, glycol and water piping shall be schedule 40 ASTM A53 grade A or B ERW pipe 2. Supply and install all necessary cold brine piping from plate & frame heat exchanger chiller to

buried headers 3. Supply and install all necessary warm brine piping from underfloor shell & tube heat exchanger

to mini headers for the new West pad. New piping shall be provided from the underfloor heat exchanger to the engine wall opening for the existing East pad.

4. Supply and install all necessary compressor jacket cooling piping system including but not limited to;

a) 1 x AMOT CCMCT08501-00-AA 85F Thermo 3 Way Mixing Valve b) 4 x Isolation Butterfly Valves for the Mixing Valve c) 5 x Purge Ball Valves d) 2 x Isolation Butterfly Valves for Glycol Pump e) 1 x T-Type Strainer for Glycol Pump f) 4 x Isolation Ball Valves for Condensers g) 1 x Closed Bladder Expansion Tank h) 1 x Air scoop with Auto-Vent

5. Supply and install two (2) isolation butterfly valves on each pump for safe, convenient operation

and maintenance. Butterfly valves shall be full lug type with trim selection compatible with fluid being handled. All butterfly valves shall have lever handle operator. Butterfly valves to be Challenger. On piping 2” and smaller full port steel ball valves shall be used

6. Supply and install one (1) wafer style check valves on each cold floor brine pump. 7. Supply and install one (1) Y-type strainer at the inlet of each plate & frame heat exchanger 8. Supply and install one (1) Y-type strainer for each condenser water pump 9. Each brine filter shall be piped complete with isolation ball valves, charging ball valve and purge

valves. All brine filter piping shall also be insulated. PRESSURE GAUGES AND THERMOMETERS

1. Supply and install new pressure gauges for each brine/glycol/water pump. Provide 2 ½" diameter pressure gauges. Gauges shall be Weiss and constructed of material compatible with fluid being measured. All pressure gauges shall be liquid filled and come complete with isolation ball valves

2. Supply and install new thermometers on brine/glycol/water piping. All thermometers shall be

Weiss with solar powered digital display, adjustable stem angle and separable wells REFRIGERANT

1. Supply and install complete operating charge of Ammonia

2. New brine for West pad cold floor.

3. New Ethylene Glycol for West pad warm floor. a) Ethylene Glycol charge must be charged at 45% concentration or charged at 100%

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concentration and diluted with D.I. (Deionized) water to 45% concentration. City water or other forms of treated water will not be acceptable.

4. Reuse Brine and Ethylene Glycol charge for East pad

5. Refrigerant grade oil to be supplied as recommended by the compressor manufacture for the

initial oil charge

6. Supply & install Rink Seal Pro preventative maintenance solution by Shaler: 810-603-1324 [email protected]. Solution provided shall be adequate for each cold floor ice surface for a period of one (1) year

PART 3 – EXECUTION

3.1 EXISTING RERIGERATION EQUIPMENT REMOVAL

A. The entire charge of ammonia shall be removed and stored in cylinders for reuse. The refrigeration contractor will ONLY BE PERMITTED TO USE A PORTABLE PUMPOUT UNIT to safely remove the ammonia before removing the equipment. The City (or its representatives) will be closely monitoring the removal of ammonia and will require this contractor to submit a written plan before proceeding.

B. Disconnect, remove and dispose the existing refrigeration equipment and piping from

the refrigeration room. 3.2 NEW EQUIPMENT AND PIPING INSTALLATION

A. Install all new equipment as recommended by the manufacturer. Provide adequate clearances around the equipment to allow access for maintenance and removal for service. Equipment to be supported and secured to the refrigeration room concrete floor. Coordinate the forming and placing of level concrete bases.

B. Install all piping in a neat and professional manner using acceptable trade practices.

Piping shall be run straight and true between fittings. Vertical piping shall be plumb and horizontal piping shall be parallel with walls whenever possible. Unnecessary offsets and elbows shall be avoided. Ammonia piping shall be solidly supported in place to comply with TSSA regulations.

C. Pressure test all ammonia piping to comply with TSSA regulations, prior to painting or

insulating. Arrange for TSSA onsite piping inspection and to witness the ammonia piping pressure test.

3.3 PAINTING

A. All shop fabricated package equipment and piping shall be painted with one coat of industrial finish enamel. Touch up any abrasions as required after equipment is installed and construction is complete.

B. All field-fabricated steel shall be painted with a rust resistant primer.

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C. All un-insulated steel piping shall be painted with industrial machinery enamel paint with colours to match accepted trade standards.

3.4 PIPE & VESSEL INSULATION

1. All pipes and pressure vessels which will have temperature loss of sweat during normal operation must be factory insulated with minimum 2” foam in place insulation.

2. All piping within the refrigeration room which will have temperature loss of sweat

during normal operation must be insulated with preformed polyisocyanurate (PIR) ITW Trymer 2000xp insulation with tongue and groove horizontal joints & ship lap end joints. Vapour barrier to be ITW saran film 560CX. Insulated pipe & fittings must be covered with a 0.020" minimum white PVC jacket over vapour barrier. Seal joints with white perma weld glue

3. Armaflex insulation & DOW SM will NOT be accepted for any interior pipe insulation

4. Insulated pipe must be protected by galvanized sheet metal shields that precisely

match the curvature of the outer jacketing surface at all clevis hangers or steel trapeze pipe supports

5. Buried cooling brine mains shall be insulated with DOW SM or equal extruded

polystyrene insulation and covered with Polyguard Insulrap 50 or Henry Blueskin WP200 water proof membrane suitable for buried pipe application.

6. Insulation shall include but not limited to;

a) Underfloor heat exchanger Ammonia condenser drain line b) Brine filter piping c) Surge Drum d) Ammonia high stage suction e) Ammonia Low Temperature Liquid f) Ammonia High Temperature Recirculated Suction g) Ammonia High Temperature Recirculated Liquid h) Oil Pot Equalizing Line i) Cold Brine Supply & Return Mains

3.5 OIL CHARGE

A. Supply and install a complete initial and spare charge of oil for the new compressors. Oil to be CIMCO Type A or approved equal. The system will be considered fully charged when the oil return system is fully operational and replenishing compressor crankcases as required.

3.6 IDENTIFICATION A. All new ammonia, glycol and water lines installed for the ice rink refrigeration system

shall be identified after painting and insulation with the fluid in the pipe and the direction of flow. All lines penetrating walls or roofs must be immediately identified on either side. Pipe markers shall be manufactured by Marking Service Inc. or approved equal.

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3.7 ELECTRICAL POWER AND CONTROL WIRING

A. Provide all power and control electrical field wiring from the refrigeration control panel to the refrigeration equipment motors, switches, controls and remote temperature sensors. All electrical wiring must conform to CSA and local codes.

3.8 REFRIGERATION SYSTEM COMMISSIONING AND TRAINING

A. The refrigeration contractor shall be solely responsible for charging of ammonia refrigerant and compressor lubrication oil into the system. The refrigeration system shall be commissioned by a qualified refrigeration mechanic (no apprentices shall be permitted) including testing and adjusting all operating controls. The refrigeration contractor shall instruct the owners representative in the operation and control of all the equipment on the refrigeration system.

B. Once the system is commissioned and operational, the refrigeration contractor shall provide a minimum of eight (8) hours of training onsite for the city’s operations

personnel. 3.9 SIGNAGE

A. Post a permanent sign displaying the information as required in the CSA B52 Refrigeration Code

3.10 PROCEDURES FOR START-UP

The procedure for the initial rink concrete slab controlled temperature reduction and making of the first sheet of ice is as follows:

.1 A minimum 28-day cure period is required on the concrete prior to reducing the floor

temperature. .2 The new concrete slab should be thoroughly cleaned and rinsed. A non-oil based

detergent type soap, can be applied by a power scrubber or hand mopped. Ensure any traces of petroleum-based distillates have been removed.

.3 Reduce the floor slab temperature down to 0oC [32°F]. The full system capacity can be used to minimize the time required to reduce the floor slab temperature to 0oC [32°F].

.4 Hold the floor slab at 0oC [32°F] for 24 hours. .5 Reduce the floor slab temperature at a rate of -1.7oC [3°F] per day until a temperature

of approximately -6.7oC [20°F] is reached. .6 Owner begins ice-making process.

End of Section

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