Skymark VAC Features

Ideal for tenant change/renovation.

Protected from extreme weather conditions and vandalism.

Convenient access to all parts and service needs, while

running in place.

Allows independent metering / temperature control.

Convertible horizontal or vertical evaporator discharge.

Static capability to suit various installation requirements

using centrifugal blowers and adjustable pulleys.

Available in 8, 10, 12, 15, 20 and 25 capacities.

Skymark VAC self-contained air conditioning packages offer a complete line of unit options for indoor, through-the-wall installation for high riseand single story building applications.

Skymarks compact, low profile indoor design protects against potential vandalism,weathering and eliminates the need forany unsightly exterior equipment.

Floor-by-floor installation provides independent zone and temperature control, eliminating many of the complications encountered with roof-top equipment. Renovation and restoration projects are simplified where roof load, cooling tower, and constructionrestrictions can present installation problems.

Skymarks VAC Air Cooled Indoor Vertical air conditioning design features high efficiency, quality engineering and dependable operation.

VACVERTICAL

Air Cooled Self ContainedAir Conditioning Packages

8 - 25 Ton Series

GENERAL DATA

2

1. Belt driven centrifugal evaporator blowers with adjustable pulleys

2. Heavy gauge galvanized steel cabinet. Separate evaporator and condensing modules,

allowing easy separation if required.

3. Belt driven centrifugal condenser blowers with adjustable pulleys

4. Convenient indoor access to all parts and service needs

5. 8 through 25 ton units feature multiple high efficiency compressors in parallel for

efficient part-load cooling.

6. Filter drier

7. Sub-cooling built into draw through coil

8. Sight glass

9. TX valve

9

8

6

1

2

3

4

5

KEY COMPONENTS

7

GENERAL DATA

3

Nominal Capacity096 = 96,000 BTHU

120 = 120,000 BTHU144 = 144,000 BTHU180 = 180,000 BTHU240 = 200,000 BTHU300 = 300,000 BTHU

Product TypeVertical Air-cooled

Service Digit

Production VariantVoltage32 = 208-230/3/6034 = 460/3/6035 = 575/3/60

Design Series

Model# VAC 096 F 32 A - A

SKYMARK MODEL # NOMENCLATURE CODE

Model

Cooling Performance

Compressor - Qty / Type

Evaporator Coil-Type

Condenser Coil-Type

Evaporator Fan-Type

Condenser Fan-Type

Filters

Condensate Connection

4

COOLING PERFORMANCE DATA

All figures shown are gross cooling capacities and do not include the effect of fan motor heat.

COOLING PERFORMANCE DATA

5

All figures shown are gross cooling capacities and do not include the effect of fan motor heat.

6

Condenser Air Blower Performance

Supply Air Blower Performance

FAN PERFORMANCE

7

Standard Evaporator and Condenser Motors

ELECTRICAL DATA

Oversized Evaporator Motors

8

8 - 10 TON UNIT DIMENSIONS

9

12 - 15 TON UNIT DIMENSIONS

20 TON UNIT DIMENSIONS

10

NOTE: SHIPPED SPLIT, NITROGEN CHARGE ONLY

11

25 TON UNIT DIMENSIONS

NOTE: SHIPPED SPLIT, NITROGEN CHARGE ONLY

GENERAL MECHANICALSPECIFICATIONS

12

VAC VERTICAL SERIES SYSTEMSAll models 8-15 tons ship as factory-charged unitized pack-ages. The 20 and 25 ton models shall be shipped as sepa-rate evaporator and condensing unit modules (nitrogen hold-ing charge only). All units may be field split and installed asseparate modules to suit on-site requirements. All packagesare designed for freestanding mounting on the floor, or on afield fabricated structural steel stand. The 8 and 10 ton mod-els are shipped with vertical evaporator fan discharge asstandard. The 12, 15, 20, and 25 ton models are shipped hor-izontal discharge as standard.

CABINETAll cabinets are completely constructed of heavy gauge gal-vanized steel. The entire unit interior (both evaporator andcondensing section) is insulated with 1/2" thick, 2 lb. densityinsulation. Service panels are equipped with lifting handlesfor ease of removal and handling. Duct flanges for condens-er discharge, condenser intake, and evaporator discharge,are provided with the unit for field installation. Duct flange forevaporator return is incorporated into the filter frame.

COMPRESSORSAll models utilize "Scroll" type hermetic compressors.Compressors are mounted on rubber isolators to minimizevibration transmission. Internal overload protection is provid-ed. External high pressure and low pressure cutout switchesare included in each compressor control circuit. Crankcaseheaters are standard on all models.

REFRIGERANT CIRCUITSThe 8-20 ton units feature two independent refrigeration cir-cuits. The 25 ton unit features three independent refrigerationcircuits, with fully interwoven evaporator coil circuitry. Eachrefrigeration circuit includes an adjustable thermal expansionvalve (with external equalizer), liquid line filter drier, sightglass/moisture indicator, and service gauge ports.

EVAPORATOR AND CONDENSER COILSThe evaporator and condenser coils are constructed of inter-nally enhanced copper tubes mechanically bonded to rippledaluminum plate fins. Both coils are employed in a draw-thruconfiguration. Large evaporator coil face area minimizespotential water blow-off.

INDOOR/OUTDOOR FANSForward curved, double inlet and double width centrifugalblowers are used for both evaporator and condenser airmovement. Blower wheels are fabricated of galvanized steel.Blowers employ solid steel shafts, supported in permanentlylubricated ball bearing. All blowers are belt driven. Variable-pitch motor sheaves allow for field adjustment of blower rpm.

ELECTRICAL/CONTROLSAll units are completely factory wired with all necessary con-trols. Manual reset protection is provided on both evaporatorand condenser motors. A manual reset circuit is also provid-ed on each compressor control circuit in the event of high/lowpressure cutout. A 24 volt control circuit, with oversize trans-former, is provided for field connection.

FILTERSAll models are shipped with 2 inch thick medium-efficiencythrowaway filters, factory installed. Filter rack is external tothe cabinet (shipped loose).

13

OPTIONAL ACCESSORIES

APPLICATIONSkymarks air side economizers are designed to meet cur-rent building and legislated codes for indoor ventilation. Inaddition to improving indoor air quality, economizers pro-vide substantial energy savings by utilizing cool outside airinstead of mechanical cooling whenever outside condi-tions permit.

The outlet or discharge of the air side economizer is fittedto the return air inlet of the packaged air conditioning unit.The two inlets to the economizer are fitted to the return airand outside air ductwork. Opposed blade dampers locat-ed in each inlet modulate the incoming air streams asthey enter the mixing box. The outside air damper can bemaintained at a predetermined minimum position. In thisway the buildings ventilation requirements can be met atall times.

GENERALConsisting of an integrated mixing box and control assembly,the economizer mates easily to all Skymark vertical air han-dlers. A factory supplied wiring harness and jack plug assem-bly simplifies field wiring, reducing valuable installation time.No additional controls or transformers are necessary to com-plete the installation.

Mixing Box - The mixing box is manufactured from heavygauge steel and completely insulated with one half inch ofinsulation. The mixing box is complete with fully modulatingopposed blade dampers and linkage.

Low Leakage - Low leakage dampers meet the criteria ofless than 10 cfm per square foot at 4 w.g. (0.5% at 2000fpm). All damper blades are provided with neoprene sealsproviding a tight seal and quiet operation.

Honeywell W7215 Economizer Control Module - TheW7215 is a multi-functional controller capable of analyzingdry bulb, enthalpy and air quality inputs. An output from theeconomizer module will position the mixing box dampers toprovide energy saving through the introduction of outside airfor free cooling.

FACTORY INSTALLEDOversized Evaporator Fan MotorsIncreased horsepower motors and drive components areavailable for those applications where external static pressurerequirements exceed the capability of the standard motor.

Corrosion Resistant CoatingsCondenser and/or evaporator coils shall receive a 1-mil thick-ness of a cathodic epoxy type electro-deposition coating,applied in a multiple dip and brake process.

Stainless Steel Drain PanEvaporator drain pan shall be fabricated of 304 stainlesssteel material. The 3/4 in NPT drain connection fitting is alsoof 304 stainless steel.

Hot Gas BypassAdjustable hot gas regulator and all necessary piping shall beinstalled on lead compressor circuit. Bypass capacity shall beminimum 50% of compressor capacity. The Bypass valveopens at a preset suction pressure to prevent coil freeze-upat light evaporator load, or low airflow conditions. The use ofthe field installed Low Ambient Control is strongly recom-mended when Hot Gas Bypass is installed.

Anti-Short Cycle TimerTime delay relay will be provided for each compressor circuit.Compressor will be locked out for 5 minutes when thermostatcontacts open, or there is a momentary power outage.

FIELD INSTALLEDLow Ambient ControlHead pressure control damper kit will allow unit operationdown to 0oF ambient. Damper assembly fits over condenserair intake. The kit includes damper actuator, and low pressureswitch bypass timer(s).

Hot Water & Steam CoilsHydronic heating coils shall mount on return air side of cool-ing coil. The unit filter rack shall mount to the entering air side ofthe heating coil.

Discharge PlenumPlenums shall mount on top of the evaporator section, withfans arranged for vertical discharge. Double deflection grillsshall allow air discharge in multiple directions.

Oversized Evaporator Fan MotorsIncreased horsepower motors and drive components areavailable as a kit. Units are field upgradeable for applicationswhere external static pressure requirements exceed thecapability of the standard motor.

AIRSIDE ECONOMIZER ACCESSORY

DISCHARGE PLENUMS & HEATING COILS

14

8 Ton

10 Ton

A

60

60

B

29

29

C

28

28

Side Grille

20x16 (2x)

20x18 (2x)

Front Grille

38x16

48x18

12 Ton

15 Ton

20 Ton

25 Ton

A

78

78

83

88

B

32

32

32.5

34

C

28

28

28

28

Side Grille

20x18 (2x)

24x20 (2x)

24x20 (2x)

24x20 (2x)

Front Grille

28x18 (2x)

28x20 (2x)

32x20 (2x)

32x20 (2x)

8 Ton

10 Ton

12 Ton

15 Ton

20 Ton

25 Ton

A

52

52

71

71

76.5

79.5

B

5.50

5.50

5.50

5.50

5.50

5.50

C

28

28

28.25

28.25

40.13

40.13

Inlet (MPT)

1 1/2

1 1/2

2

2

2

2

Outlet (MPT)

1 1/2

1 1/2

2

2

2

2

3200

4000

4800

6000

8000

10000

180 F Entering Water Temperature

60 F Entering Air Temperature

Unit Model #

VAC096

VAC120

VAC144

VAC180

VAC240

VAC300

AirflowCFM

VHCL-120B

VHCL-120B

VHCL-180B

VHCL-180B

VHCL-240B

VHCL-300B

CoilModel #

Air P.DIn. Wg.

WaterGPM

Water P.D.PSIG

CapacityMBH

LatF

0.090.090.09

0.140.140.14

0.130.130.13

0.150.150.15

0.110.110.11

0.160.160.16

15.020.025.0

20.025.030.0

25.030.035.0

30.035.040.0

35.040.045.0

40.045.050.0

0.470.771.14

0.771.141.58

0.180.240.32

0.280.360.46

1.481.862.28

1.942.372.85

191.5199.6204.8

228.1235.1240.0

269.6277.5283.4

331.6339.7346.0

473.7483.0400.4

557.4567.5575.8

115.4117.8119.3

112.8114.4115.6

112.0113.5114.7

111.2112.4113.4

114.8115.9116.8

111.6112.5113.3

Hot Water Coils

Plenum Dimensions (Inches)

Plenum Dimensions (Inches)

3200

4000

4800

6000

8000

10000

60 F Entering Air Temperature

UnitModel #

VAC096

VAC120

VAC144

VAC180

VAC240

VAC300

AirflowCFM

Air P.DIn. Wg.

LatF

0.080.080.08

0.100.100.10

0.100.100.10

0.120.120.12

0.090.090.09

0.120.120.12

115.8118.9122.4

109.5112.2115.3

109.7112.4115.5

107.6110.2113.2

112.6115.5118.8

107.6110.2113.2

Steam Coils

Heating Coil Dimensions (Inches)

Steam PressurePSIG

2.05.010.0

2.05.010.0

2.05.010.0

2.05.010.0

2.05.010.0

2.05.010.0

193.0203.4215.5

214.0225.6239.0

257.8271.8267.9

308.5325.3344.6

454.8479.4507.9

514.5542.4574.6

CapacityMBH

VSCL-120B

VSCL-120B

VSCL-180B

VSCL-180B

VSCL-240B

VSCL-300B

CoilModel #

15

- 18-gauge galvanized cabinet, fully insulated.- Opposed blade, low leakage damper sections.- Steel securing strip for unit support*.- Honeywell ML Series return damper actuator.- Filters and access.- Honeywell W7215 logic module with

protective cabinet.- One step jack/plug wiring assembly.- Access doors on both sides of cabinet.- Enthalpy sensor.- Discharge sensor- Return air/outside air configuration is field

convertible. (Economizers are shipped with airflow arrangement indicated in bold type)

12

3

4

5

6

7

8

10

9

All Economizers are Shipped Complete with:

123456

7891011

ASE-120V

ASE-180V

ASE-240V

ASE-300V

Vertical UnitModel #

VAC 096/120

VAC 144/180

VAC 240

VAC 300

EconomizerModel #

49.50

69.25

75.00

78.00

192

238

306

310

28.00

29.00

40.25

40.25

26.50

26.50

32.00

32.00

44.00

64.00

69.00

69.00

19.50

19.50

25.00

25.00

8.00

8.00

8.00

8.00

15.00

15.00

15.00

15.00

AWeight/ lbs.

B C D E F G

VERTICAL AIRSIDE ECONOMIZER8 THRU 25 TON FEATURES

NOTE: Additional field support required.

Skymark International warrants to the original owner/user of the Skymark

International unit identified above to be free of original defects in material or

workmanship for a period of one year from the effective date of this warranty.

This warranty extends to twelve (12) months from the date of start-up, but no

longer than eighteen (18) months from the date of shipment. The warranty does

not include the filter.

This warranty on the unit obligates Skymark International to repair or replace, free

of charge, any part or parts that show evidence of being defective in material and

workmanship and are so deemed so defective by authorized personnel of Skymark

International. The part must be returned for replacement with the proper information

when requested.

Skymark International assumes no obligation for labor required to replace the

defective part or parts nor the freight or postage required to return or to

secure the part which shall be at the cost and expense of the original

Owner/User.

Skymark International will replace the defective part or parts within 21 days after

the return to Skymark International of such defective part or parts provided notice

of such defect was given by the original Owner/User within the Warranty period.

An optional, additional four year protection plan on the compressor is available

at modest cost at the time of original unit sale only. This obligates Skymark

International to replace f.o.b. factory, a defective compressor of equal capacity

free of charge. No responsibility is assumed by Skymark International for refrig-

erant, labor, or freight to and from the factory.

THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESSED WAR-RANTIES. ALL IMPLIED WARRANTIES, INCLUDING WARRANTIESOF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PUR-POSE ARE LIMITED IN DURATION TO ONE (1) YEAR FROM EFFEC-TIVE DATE OF THIS WARRANTY. SKYMARK INTERNATIONAL ISNOT LIABLE FOR CONSEQUENTIAL DAMAGES RESULTING FROMANY DEFECT IN PART. THERE ARE NO OTHER OBLIGATIONS ONTHE PART OF SKYMARK INTERNATIONAL.

WARRANTY OF FITNESS

Skymark International does not provide a warranty of fitness since, in good faith,

Skymark International cannot anticipate or control the many different conditions

under which Skymark International information and products may be used.

SKYMARK PRODUCT WARRANTY

PHONE: 905-426-1812 FAX: 905-426-1804

TOLL FREE: 1-888-SKYMARK (759-6275)WEB: www.skymarkinternational.com

City of New YorkDepartment of Buildings

MEA

Skymark maintains a continuous product improvement policy, therefore specifications are subject to change without notice.

06/04