Zeus 15 Central Alarm...Medical gas supply conditions are transmitted throughout the alarm system by means of an advanced data trans-mission circuit. The Zeus 15 can be programmed

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Zeus 15 Central AlarmZeus Medical Gas Alarm Systems

Installation, Operation and Maintenance Manual

Zeus Central 15 Alarm Page 2


Published by Pneumatech Medical Gas Solutions

All possible care has been taken in the preparation of this publication, but Pneumatech Medical Gas Solu-tions accepts no liability for any inaccuracies that may be found.

Pneumatech Medical Gas Solutions reserves the right to make changes without notice both to this publication and to the product which it describes.

Copyright © 2015 Atlas Copco All rights reserved.

No part of this publication may be reproduced, transmitted, transcribed, or stored in a retrieval system or translated into any human or computer language in any form or by any means without the prior permission of Pneumatech Medical Gas Solutions.

ImportantPersonnel must make themselves familiar with the contents of this manual and the function of the unit before installing, operating or maintaining any Zeus 15 medical gas central alarm .

Information contained in this manual is correct at the date of publication. The policy of Pneumatech Medical Gas Solutions is one of continuous product improvement. Pneumatech Medical Gas Solutions reserves the right to make changes that may affect instructions in this manual without prior notice.

For any enquiry regarding the servicing or repair of this device, contact the nearest accredited Pneumatech Medical Gas Solutions agent, or communicate directly with:

Pneumatech Medical Gas SolutionsUnit 18 Nuffield CentrumNuffield WayAbingdonOxfordshireOX14 1RLUK

http://www.p-mgs.com

Sales Spares ServiceTel: 44 (0) 1235 463010 Tel: 44 (0) 1235 463053 Tel: 44 (0) 1235 463051Fax: 44 (0) 1235 463011 Fax: 44 (0) 1235 463011 Fax: 44 (0) 1235 [email protected] [email protected] [email protected]

Any complaints about the products or services provided by Pneumatech Medical Gas Solutions, please give as much of the following information as possible:Product Part NumberLot/ Batch NumberApproximate date of purchaseApparent fault.

ComplaintsT: 44 (0) 1235 463010 F: 44 (0) 1235 463011 [email protected]



Table of Contents0. SAFETY, STORAGE AND HANDLING 40.1 Symbols 4

0.2 Environmental Transport and Storage Conditions & Operating Conditions 4

1. DESCRIPTION AND OPERATION 51.1 Introduction 5

1.2 Standards 6

1.3 Alarm Panels 6

1.4 Visual displays 6

1.5 Test and Mute switches 7

1.6 Audible warning 7

1.7 Printed circuit boards 7

1.8 Alarm contact line fault 10

1.9 Remote audible warning devices 10

1.10 Zeus 15 Relay interface panel 10

1.11 Operation of the alarm system 10

2. INSTALLATION 142.1 Installation of a first fix panel 14

2.2 Installation of a Second Fix Assembly 15

3.0 Programming of the alarm system 20

4. COMMISSIONING 234.1 Introduction 23

4.2 Functional testing 23

4.3 Basic Checks 23

4.4 Check alarm conditions 23

4.5 Check the audible warning 23

4.6 Check the Remote Audible 23

4.7 Checking the Relay Interface panel 23

4.8 Checking the SYSTEM ALARM indication 23

4.9 Check Central Acknowledge function 24

4.10 Setting the alarm system 24

5. OPERATING INSTRUCTIONS 245.1 General operation 24

5.2 System Alarm light 24

5.3 Test switch operation 24

5.4 Mute switch operation 24

6. MAINTENANCE 246.1 Introduction 24

6.2 Tools and equipment 24

6.3 Customer recommended maintenance 24

6.4 Weekly inspection 27

6.5 Annual Inspection 27

6.6 Alarm Component Replacement 27

7. FAULT DIAGNOSIS 277.1 Introduction 27

8. RECOMMENDED SPARES 298.1 Spares scheduling 29



Alternating current

Static sensitive components

Do not dispose of in general waste

0.2 Environmental Transport and Storage Con-ditions & Operating ConditionsMin ambient temperature - 0 degrees CelsiusMax ambient temperature - 50 degrees CelsiusMin relative humidity (non-condensing) - 10%Max relative humidity (non-condensing) - 95%Atmospheric pressure range - 70-110 kPa

0.3 CleaningThe alarm cover and fascia should be wiped over with a damp cloth frequently to remove any dust or foreign sub-stances.

0.4 Environmental ProtectionDiscard the unit and/or components in line with WEEE regulations, or other local applicable regulations. 0.5 Electromagnetic InterferenceEnsure any input and data cables are physically separat-ed from other mains and data cables.

0.6 Electrical DetailsWARNING... It is necessary to check the integrity of the power source for safety at regular intervals. These checks should be carried out annually and replacement power supplies used is necessary.

Audible Warning

Test Switch

System Alarm LED

Gas ID RowPower On LED

Mute Switch Normal LED

Warning Fault LED Rows

FIGURE 1 .1- Zeus 15 DISPLAY, SHOWN IN NORMAL RUNNING

0. SAFETY, STORAGE AND HANDLING

0.1 SymbolsThe following symbols apply to this product and are used in these instructions and on the product in question. The meanings of these symbols are as specified below: -

Read instructions

Warning - dangerous voltage

Ambient temperature range

Ambient humidity range

Ambient pressure range

Date of manufacture

Caution - system alarm

Power on

Mute switch

Test lights

Protective earth



Power source Mains operated using 115V 60Hz or 230V 50Hz, alternat-ing current, from an essential circuit. Please see labelling inside unit for correct voltage.

Current requirements 3.0 ampsType of protection against electric shock Class 1 (Mains supplied equipment using a protected earth)

Mode of operation Continuous (equipment may be left switched on indefi-nitely)

Degree of protection against ingress of liquidsIPX32

Degree of mobility Permanently installed (This unit is electrically connected by permanent means)

Degree of protectionType B (no Applied Part or with and Applied Part not de-signed to meet F type (floating) requirements)

Degree of protection against flammable anaesthetic mix-turesNot protected (not suitable for use with flammable gases)

Rechargeable BatteryThe rechargeable battery (ref. 6000157) should be re-placed every 5 years.

1. DESCRIPTION AND OPERATION

1.1 IntroductionThe Pneumatech MGS Zeus 15 medical gas central alarm system is designed to provide full monitoring of a complete medical gas installation. Zeus 15 alarm systems consist of source panels connected to supply equipment located in plant rooms, and repeater panels in locations as specified by the customer for constant monitoring.

FIGURE 1.2 - Zeus 15 ASSEMBLY

First Fix(Back Box)

Bezel (Optional)

Alarm Panel

Security Fastener

223

287

VIEW FROM FRONT

64

46

1.2

0

50 40 40 40 40

260

50 20

17

VIEW FROM BOTTOM

196

VIEW FROM SIDE

30 200 30 17

VIEW FROM TOP

FIGURE 1.3 - Zeus 15 DIMENSIONAL DETAILS

Medical gas supply conditions are transmitted throughout the alarm system by means of an advanced data trans-mission circuit.

The Zeus 15 can be programmed by the use of switches to provide a fully flexible alarm system. Allowing the panels to be adapted to suit any hospital’s medical gas monitor-ing requirements (see section 3 for programming details).



An individual Zeus 15 panel has 5 columns consisting of ‘normal’ and 4 ‘fault’ conditions. These columns can be setup to monitor either up to 5 medical gas source equip-ment, or up to 20 individual point alarms, or a combination of the 2.

One Zeus 15 alarm panel is designated the master panel for control purposes. Any number of panels may be pro-grammed as a ‘central acknowledge panel’ and cause all flashing displays on the system to change to steady when the MUTE switch on the central acknowledge panel is op-erated. Each Zeus 15 alarm panel connects directly with the mains electrical power supply and alarm panels are available for use with AC supplies of either 115V±10%, 60Hz or 230V±10%, 50Hz. Electrical power supplies should be from an essential circuit and fused at 3 Amps.

Each Zeus 15 alarm panel incorporates flashing alarm dis-plays, a POWER ON indication, a SYSTEM ALARM indi-cation, MUTE and TEST switches and an audible warning programmed to operate depending upon the alarm condi-tion displayed (see figure 1.1 for display image). Alarm panels are interconnected by data transmission cable. Relay interface units are available to input conditions into existing alarm systems or building management systems.

1.2 StandardsThe Pneumatech MGS Zeus 15 medical gas central alarm system is specifically designed and manufactured to fully satisfy the National Health Service – Model Engineer-ing Specification C11, and is therefore ideal for HTM02-01/HTM2022 applications. Pneumatech MGS Zeus 15 medical gas alarms are suitable for both United Kingdom and International markets, and are fully tested prior to dispatch and packaged to provide maximum protection during transit. Alarm panel printed circuit boards are de-signed to operate in an ambient temperature of between 0°c and +50°c. Component assemblies must be stored in their packaging in dry conditions and storage tempera-tures must be between 0°c and +50°c.

Alarm panel enclosures provide protection to IP32 (BS EN 60529) and are electrically bonded to earth to provide safe installation.

1.3 Alarm PanelsEach alarm panel consists of a first and second fix as-sembly, and are suitable for use with either surface or con-cealed installations. A bezel plate is provided for use with concealed installations and is fitted to the first fix assem-bly to give a neat appearance by covering the plaster joint. The front cover of the enclosure is hinged and retained by a special fastener which prevents unauthorised access (see figure 1.2). The assembly contains two printed circuit boards and pro-vides a gas service display through windows in the front cover. The front cover has a flush dark finish polyester fas-

cia to highlight the displays. Five columns of display win-dows indicate ‘Normal’ and ‘4 alarm conditions’, for each gas service monitored.

Displays are illuminated by coloured LED block indicators and have captions to indicate the gas service, ‘Normal’ and ‘Alarm’ conditions. The alarm panel also incorporates a green LED to indicate that the electrical power supply is ON, and a red LED to indicate an alarm system fault (SYSTEM ALARM). A MUTE switch is provided to mute the audible warning and a TEST switch is provided to test the internal circuits, LED’s and audible warning within the panel. Overall dimensions are detailed at Table 1.1 & Fig-ure 1.3.Gas service legends are printed on acetate strips, which slide into the alarm panel front cover through the upper-most internal slots. The correct combination of gas ser-vice legends must be fitted to satisfy the requirements of a particular location with blank strips fitted to display columns not used. Normal C11/HTM02-01/HTM2022 leg-ends are available as standard any special legends, point alarm legends etc. must be ordered as specials.

TABLE 1.1: Zeus 15 – DIMENSIONS

Alarm Panel Bezel

Height(mm) 196.0 246.0

Length(mm) 260.0 310.0

Depth(mm) 61.2 18 swg

Chase depth(mm) 45.0 -

1.4 Visual displaysColoured LED’s fitted to the light display PCB provide the following visual displays:

1.4.1 Power On indication (see figure 1.1): The Power On indication is displayed by a green LED which is extinguished in the event of a power failure.

1.4.2 System Alarm indication (see figure 1.1): The System Alarm indication is displayed by a red LED which is normally extinguished. This LED flashes to draw attention to any of the following failures:-

Alarm contact line faultElectrical power supply failure Internal alarm failureData transmission failure

1.4.3 Normal gas service indication (see figure 1.1): The Normal indication is displayed by a steady illuminated green LED which is extinguished in the event of an alarm condition.

1.4.4 Alarm conditions (see figure 1.1): Each alarm condition is indicated by flashing LED’s (yel-



The audible tone consists of a modulation between two tones (F1 and F2). F1 = 440Hz and F2 = 880Hz. The modulation rate is 4 Hz in accordance with HTM02-01/HTM2022 and C11 (see figure 1.4). Audible warning may be muted for specific alarm conditions during prolonged maintenance of plant or pipeline shut-down by operating the MAINTENANCE MUTE switch inside the alarm panel (see figure 1.6).

Operation of the MUTE switch on a central acknowledge panel signifies that action is in hand to identify and rec-tify the fault which produced the alarm condition. This in-formation is transmitted to all repeater panels displaying the gas service and the flashing visual display becomes steady, on all the respective display alarm panels, and the audible alarm is muted. This feature will automatically re-set when the channel returns to normal, if a further alarm occurs, or the 15 minute time-out expires.

1.7 Printed circuit boardsTwo printed circuit boards (PCB’s) are fitted inside a Zeus 15 Medical gas area alarm, i.e. a power supply PCB (see figure 1.5 & 1.6) and a light display PCB (see figure 1.4). All components are mounted on these PCB’s which are interconnected by means of a multi-way ribbon cable and polarised connector. The Zeus 15 internal electrical instal-lation complies with all relevant British Standard specifica-tions, IET wiring regulations and current UK legislation.

1.7.1 Light display printed circuit board (see figure 1.4)The light display PCB is retained inside the alarm panel front cover with six retaining studs. This PCB contains 5 columns of 5 coloured LED block indicators, a green POWER ON and red SYSTEM ALARM LED block indica-tor. Each LED block indicator aligns with display windows in the front cover and fascia to provide a clear display. Each gas service indicator contains eight separate long life LED’s connected in two banks of four, and both the POWER ON and SYSTEM ALARM LED contains four separate long life LED’s connected in parallel in two banks of two. This duplex circuitry provides system reliability and ensures that illumination continues in the event of either a single LED or circuit failure. Each LED block indicator is a plug-in component enabling easy replacement or subse-quent updating of the installation.

The ribbon cable is permanently attached to the rear face of the light display PCB and enables interconnection of circuits with the power supply PCB. The audible warning speaker is connected by plug and socket to the light dis-play PCB and locates within the alarm panel front cover when installed.

The light display PCB incorporates both rotary and DIL switches to allow easy programming of the alarm panel to suit all configurations.

low or red) to draw attention to the specific alarm condi-tion. All flashing displays are programmed at sixty flashes per minute, 0.5 seconds on and 0.5 seconds off in accor-dance with C11 and HTM02-01/HTM2022.

1.4.5 Display positionsTo provide an aesthetic display and maintain consistency in accordance with recognised and established Medical gas service sequencing, it is recommended that displays are positioned in the following sequence on each alarm panel commencing with the left hand column:-

Medical Oxygen (cryogenic and manifolds)Nitrous oxide (manifolds)Oxygen/Nitrous oxide (manifolds)Medical Air 400 kPa (plant and manifolds)Medical Air 700 kPa (plant and manifolds)Medical Vacuum (plant)AGS (simplex or duplex)Point alarms (as required)

1.5 Test and Mute switches (see figure 1)TEST and MUTE switches require only gentle finger pres-sure. Operation of the TEST switch initiates the audible warning and illuminates (flashing) all the displays on the panel. This simple check proves the integrity of all LED’s internal alarm circuits and audible warning. Given an alarm condition, operation of the MUTE switch silences the audible warning for 15 minutes.

CAUTION:The TEST and MUTE switches must only be operated by gentle finger pressure. Operation by the use of instru-ments, tools or other implements will cause damage to the switch.

1.6 Audible warningThe audible warning speaker is clipped to the alarm panel front cover and connected to the light display PCB by plug and socket (see figure 1.4). The speaker operates simul-taneously with any specified alarm conditions or SYSTEM ALARM indication. The audible warning may be muted by pressing the MUTE switch (see figure 1.1). If following a mute condition another alarm condition occurs, the au-dible warning will operate simultaneously with the indica-tion. Following a mute condition and a continuing alarm indication, the audible warning will resound after 15 min-utes in accordance with HTM02-01/HTM2022 and C11. When the audible resounds further operation of the MUTE switch is necessary to cancel the audible. Audible warning volume may be adjusted by means of a screwdriver slot in the rear face of the light display PCB (see figure 1.4). If following an alarm condition no action is taken to MUTE the audible, the audible warning will automatically switch off when the alarm condition reverts to NORMAL.



FIGURE 1.4 - Zeus 15 LIGHT BOARD

AUDIBLE WARNINGSPEAKER CONNECTION

POWER ON LEDSYSTEM ALARM LED NORMAL CONDITION LED’s

FAULT CONDITION LED’sRETAINING STUD LOCATIONS x 6

AUDIBLE WARNING SPEAKER

PROGRAMMING SWITCHES (SEE SECTION 1.12)

MULTI-WAY RIBBON TO POWER BOARD

AUDIBLE WARNING VOLUME CONTROL

SW1SW2SW3SW4SW5SW6SW7

1.7.2 Power supply printed circuit board (see figure 1.5 & 1.6)The power supply PCB is retained inside the alarm panel back box with four retaining studs and connects to the light display PCB multi-way ribbon cable by polarised con-nectors. The power supply PCB incorporates four mains

terminals connected to matching plug/socket combination to accept the mains electrical power supply, which should be from an essential circuit, and enables connection of flying earth leads which electrically bond the assembly. The power supply PCB should be set to the appropri-ate local mains supply voltage, either 115V±10% or 230V±10%. SW8, on the power PCB selects the voltage. A filter protects the alarm system from possible spikes or disturbances of the incoming electrical power supply and an integral transformer provides 15V and 5V supplies to operate the alarm circuits. Three fuses 20mm x 5mm to BS4265 protect the power supply circuits. F1 is rated at 500mA for 230V supplies and 1A for 115V supplies, F2 at 1A, and F3 at 500mA.

All mains power supply circuits and components are en-closed, with the exception of the connection terminal. A warning notice reminds personnel to isolate the electrical power supply prior to removal and maintenance, and a small plastic cover prevents accidental contact. In order to prevent inadvertent cross connection, the mains electrical power supply plug and socket is not compatible with any other connection to the PCB. The power supply printed circuit board incorporates a mi-croprocessor which controls the operation of the alarm panel. A “MAINTENANCE MUTE” push button ( see fig-ure 1.6) is fitted on the power supply PCB and is acces-sible with the alarm panel front cover open. With an alarm condition displayed, operation of this button disables au-dible reinstatement for any active alarms. This facility is designed for use when the plant or pipeline is shutoff for a prolonged period. Should additional alarms occur during a maintenance mute, the audible will re-sound. On return-ing the plant or pipeline pressure to NORMAL this feature automatically resets without further manual intervention. The power supply PCB incorporates 5 input channels for connection to their respective inputs. Each channel (designated CH1 to CH5) incorporates 5 terminals (C – Common, 1, 2, 3 and 4) which are connected by match-ing plug/socket combination to accept signals from their respective inputs.

A relay (complete with line continuity monitoring circuit)suitable for switching 50V and a maximum of 0.5 Amps is fitted to the power supply PCB. The relay has volt free, normally open contacts and two terminals (N/O and C) enable connection by a matching plug/socket combina-tion to either a Medipoint central alarm system or other suitable system. The line continuity monitoring circuit can be de-selected by means of a jumper on JP1 located on the power supply PCB. The relay is de-energised and con-tacts open when any of the twenty alarm conditions are initiated. Terminals are also provided to enable connection of a re-mote audible warning device (AUD+ and AUD-). It is rec-ommended that the input and data transmission cables are installed separate from the mains cable and maximum



BACKUP BATTERY CONNECTION

FIGURE 1.6 - Zeus 15 POWER SUPPLY BOARD SWITCH & FUSE LAYOUT, PLUS BACKUP BATTERY

ELV 1A FUSE [F2] ELV 500mA FUSE [F3]

MAINS FUSE [F2]500mA (230V)1A (115V)

VOLTAGE CHANGE OVER SWITCH230V OR 115V OPTION(SW8)

CONFIGURABLE DIP SWITCHES FOR DATA

TRANSMISSION

COMMUNICATION PORT

MAINTENANCE MUTE SWITCH

BOOT

RESET

BACKUP BATTERY

JUMPER JP1(SEE NOTE)

FIGURE 1.5 - Zeus 15 POWER SUPPLY BOARD CONNECTION LAYOUT AND MOUNTING

RETAINING STUD LOCATIONS x 4MULTI-WAY

DATA RIBBON FROM LIGHT

BOARD

INPUTS FOR DISPLAY COLUMNS 1-5[COMMON] [FAULT CONDITIONS 1-4]

NOTE - FAULT CONDITION 1 COINCIDES WITH THE TOP FAULT CONDITION LED, WORKING DOWN IN ORDER

DATA TRANSMISSION CONNECTIONSIN [A] [B], OUT [A] [B] AND [SCREEN]

REMOTE AUDIBLE CONNECTION [+] [-]

OUTPUT RELAY FOR

TRANSMITTING SINGLE

EVENT ALARM[COMMON]

[N/O]

MAIN POWER CONNECTION[BONDING EARTH][MAIN EARTH][NEUTRAL] [LIVE]



cable length between alarm panel and input should not exceed 100 Metres. Alarm panels accept a mains electri-cal power supply cable of 2.5 sq mm, and all other termi-nals accept a maximum cable size of 1.5 sq mm.

1.7.3 Standby battery (See figure 1.6)The power supply PCB also contains a standby battery, battery charging and power fail detection circuits. The bat-tery provides power for both the SYSTEM ALARM indica-tion and the audible warning in the event of an electrical power failure. The battery is fully charged after 72 hours and provides sufficient power to operate the specific alarm indications for a minimum of 4 hours. The battery is expected to have a minimum 5 years life.

1.7.4 LED Status indicatorsThe power PCB has five LED’s to indicate the following conditions to help with fault diagnostics:-

LED1 is a “heartbeat” indication, and will normally flash green. When the power has failed, the LED will be off. If the software identifies the incorrect board, the LED will be solid red.

LED2 will blink green when the RS-485 is transmitting data, off when no activity.

LED3 will blink red when the RS-485 is receiving data, off when no activity.

LED4 will blink green when the RS-232 is transmitting data, off when no activity.

LED5 will blink red when the RS-232 is receiving data, off when no activity.

See section 7. Fault Diagnosis table 17.9.

1.8 Alarm contact line faultCAUTION:Only Pneumatech MGS line continuity monitor modules should be fitted, otherwise the SYSTEM ALARM circuits could provide spurious indications.

Integrity of the interconnecting wiring and input sensors are constantly monitored by the SYSTEM ALARM detec-tion circuits. The monitoring circuit is designed to detect an open or short circuit as well as normal operation of the pressure sensor. In the event of a line fault the NOR-MAL LED remains illuminated, the appropriate gas ser-vice alarm indicator and SYSTEM ALARM indicator will illuminate and the audible warning sounds. When a line continuity fault is detected the flash rate of the affected circuit LED speeds up to show short circuit or slows to show open circuit when the TEST switch is operated. This facility is designed to aid fault diagnosis. Inputs must be ‘normally closed’ volt free contacts.

CAUTION:As the alarm panel monitors specific resistance values, only one input sensor (for each specific gas service) may be connected to an alarm panel. Similarly it is not possible to connect more than one alarm panel to a single input sensor.

1.9 Remote audible warning devicesRemote audible warning devices may be fitted in locations where warnings are necessary and alarm panels are not fitted. Remote audible warning devices are housed in a surface mounted enclosure containing a warning buzzer. The audible warning device is connected by input cable to the power supply PCB within the alarm panel (alarm ter-minals AUD+ and AUD-, see figure 1.5). When the alarm panel audible sounds the remote audible also sounds. A maximum of four remote audible warning devices can be fitted to an alarm panel and the cable length should not exceed 50 metres.

1.10 Zeus 15 Relay interface panelA dedicated relay interface panel assembly enables the Zeus 15 medical gas central alarm system to be intercon-nected to an event recording circuit of a building manage-ment system, or other suitable alarm system. The relay interface unit is housed within a standard alarm panel en-closure and provides a fascia display of both POWER ON and SYSTEM ALARM. The relay interface panel incorpo-rates a dedicated power supply PCB and a dedicated re-lay printed circuit board. The power supply PCB provides no-volt terminals (C, 1, 2, 3, 4) for each channel CH1 to CH5 to interconnect with a BMS system. The relay printed circuit board is similar to the standard light display board, except that the gas service alarm LED’s are replaced by normally open low voltage relays. With the gas service op-erating normally, relay contacts are closed providing con-tinuity between terminals C and 1, 2, 3, 4. In the event of a gas service failure the respective relay contacts open to break the continuity between terminals C and either 1, 2, 3 or 4. Relays are connected to the BMS system at termi-nals C, 1, 2, 3 and 4 and are rated at a maximum voltage of 50V d.c. with a maximum current of 50mA.

For more details see document number 2005202 - Zeus 15 Relay Interface MK2 manual.

1.11 Operation of the alarm systemEach Zeus 15 medical gas alarm panel is connected to the mains electrical power supply and operates by 15V and 5V d.c. circuits from it’s integral transformer. Service fault condition sensors provide the input to initiate both the visual displays and audible warning. Programming of the panels is done via switches which can be easily adjusted on site from within the panel (see programming section 1.12).



The Zeus 15 medical gas panels use coloured LED’s to indicate the service conditions (see table 3 & 4). During normal conditions, the green NORMAL LED is illuminated. Should a service fault occur, the green (NORMAL) LED is extinguished and the appropriate service fault condition is illuminated (flashing) either by a yellow LED for warning conditions or red LED for emergency conditions, together with an audible warning. The audible warning continues until either the MUTE switch is operated or the fault condi-tion returns to NORMAL. If the MUTE facility is operated and the alarm condition remains, the audible warning will re-sound after 15 mins and a further MUTE selection will be required. Should a further alarm condition occur after the panel has indicated a fault and has been muted, the audible warning is re-activated.

The relay output (N/O and C) may be interconnected to a suitable system. The contacts are closed when all gas ser-vices are indicating NORMAL. In the event of any alarm condition, the relay contacts open, breaking the circuit to the remote system. The relay contacts remain open until all alarm conditions return to NORMAL condition. There is also a line continuity monitor integral to the board avail-able across the N/O and C contacts. To select this the jumper on JP1 is moved to the LCM position, for totally volt free contacts the jumper is moved to the N/O position (see figure 1.6).

The green POWER ON LED is normally illuminated and is extinguished in the event of an electrical power failure. The red SYSTEM ALARM LED is normally extinguished and illuminates (flashing) together with an audible warn-ing, in the event of any of the following failures:-

Alarm contact line fault.Electrical power supply failure.Internal alarm circuit failure.Data transmission failure.

When a line continuity fault is detected, the NORMAL green LED remains illuminated, the respective alarm LED also illuminates (steady), and the SYSTEM ALARM LED illuminates (flashing) accompanied by an audible warning. Operation of the TEST switch illuminates all alarm LED’s (flashing) and the flashing rate of the respective alarm LED indicates the type of fault. If the respective alarm LED flashes at a faster rate, this indicates a short circuit. If the respective alarm LED flashes at a slower rate, this indi-cates an open circuit. This facility is designed to aid fault diagnosis. The Zeus 15 medical gas central alarm system logic is detailed at Table 3 and 4.



TABLE 1.2: Zeus 15 ALARM LOGIC – INPUT PANEL

Condition Input Panel - Alarm displays

Normal NORMAL (steady)

Alarm condition

Alarm (flashing), Audible if required.

Alarm conditionExample shows fault on channel 1, column 1

Warnings conditions - Yellow LED’sEmergency conditions - Red LED’s

Line contact fault

NORMAL (steady)Alarm conditions (steady) SYSTEM ALARM (flashing)Audible

Alarm condition System alarm

Example shows fault on channel 4, column 1

Press TEST Switch, line continuity fault flashes slower than other LED’s to indicate an open circuit or faster to indicate a short circuit

Alarm conditionsTest switch

Power failure to input panel

SYSTEM ALARM (flashing) Audible (after 30 seconds)POWER ON LED extinguished

System alarmPower on LED

Data cable break/failure between input and repeater panel

All input channels to panel displayed as normal. All displayed gas services relayed from repeater panel all alarms illuminate (flashing)SYSTEM ALARM (flashing) Audible

TABLE 4: Zeus 15 ALARM LOGIC – REPEATER PANEL

Condition Repeater Panel - Alarm displays

Normal NORMAL (steady)

Alarm condition

Alarm (flashing), Audible if required.

Alarm conditionExample shows fault on channel 1, column 1

from the input panel.Warnings conditions - Yellow LED’sEmergency conditions - Red LED’s



Line contact fault

NORMAL (steady)Alarm conditions (steady) SYSTEM ALARM (flashing)Audible

Alarm condition System alarm

Example shows fault on channel 4, column 1from the input panel.

Press TEST Switch, line continuity fault flashes slower than other LED’s to indicate an open circuit or faster to indicate a short circuit

Alarm conditionsTest switch

Power failure to repeater panel

SYSTEM ALARM (flashing) Audible (after 30 seconds)POWER ON LED extinguished

System alarmPower on LED

Repeater panel display when power fails to a connected input panel

All alarms conditions (flashing) SYSTEM ALARM (flashing)Audible

Alarm conditionsSystem alarm

Repeater panel display when power fails to a connected repeater panel

NORMAL (steady)

Repeater panel display when Data cable from input panel breaks/failure

All alarms conditions (flashing) SYSTEM ALARM (flashing)Audible

Alarm conditionsSystem alarm



2. INSTALLATION

2.1 Installation of a first fix panelThe alarm panel backbox is suitable for both surface and concealed installation and is annotated ‘TOP’ inside to en-sure correct orientation. With a concealed installation a chase depth of 45mm is required and a bezel is fitted to cover the plaster joint. The procedure to install a first fix alarm panel backbox is as follows: -

2.1.1 Backbox. Locate (see figure 2.1). Ensure the backbox is the correct way up. Locate the backbox at the correct position and mark out for securing screws.

2.1.2 Wall. Fit anchors. Drill wall and fit anchors in position.

2.1.3 Backbox. Fit (see figure 2.1). Select cable entry/exit points and remove the desired knock-out segments from the inside. Fit suitable grom-mets/cable glands as required by the contract specifica-tion. Feed cables into the box leaving 400mm to enable connection to printed circuit board. Secure back box to wall with suitable screws.

7 101.50

98

196

5

105

105

200

17

20

46

KNOCKOUT SEGMENTS BACKBOX SURFACE

40 40 40 40

17

20

KNOCKOUT SEGMENTS

FIGURE 2.1 - BACKBOX DETAILS

WARNING...WITH A CONCEALED INSTALLATION, THE PLASTER DEPTH MUST BE FLUSH WITH THE BOX SURFACE, LEAVING THE WATER CHANNEL PROUD OF THE PLASTER.

FIGURE 2.2 - BEZEL DETAIL

310

246

4

6

25 (ALL ROUND)

1.2

0

BEZEL (OPTIONAL)

SECURING SCREW(M4 x 12 PAN HEAD)

BACK BOX



WARNING...WITH A CONCEALED INSTALLATION, THE PLASTER DEPTH MUST BE FLUSH WITH THE BOX SURFACE, LEAVING THE WATER CHANNEL PROUD OF THE PLASTER.

2.2 Installation of a Second Fix Assembly

WARNING...ENSURE THAT THE ELECTRICAL POWER SUPPLY TO THE ALARM IS OFF AND REMAINS ISO-LATED UNTIL REQUIRED DURING THE COMMISSION-ING PROCEDURE

2.2.1 Backbox. Check. Ensure that the inside of the backbox is clean and free from debris.Concealed installation. Fit bezel plate (see figure 2.2). Fit bezel plate to backbox and retain with securing screw engaged in right hand anchor nut.

2.2.2 Fit Legends as required (see figures 2.3; 2.4 and table 2.1)Fit blank and gas/vacuum service legend, through the slots in the rear of the cover, as required. NB. It is neces-sary to remove the display PCB to access the slots easily.

To provide an aesthetic display and maintain consistency in accordance with recognised and established Medical gas service sequencing, it is recommended that displays are positioned in the following sequence on each alarm panel commencing with the left hand column:-

Medical Oxygen (cryogenic and manifolds)Nitrous oxide (manifolds)Oxygen/Nitrous oxide (manifolds)Medical Air 400 kPa (plant and manifolds)Medical Air 700 kPa (plant and manifolds)Medical Vacuum (plant)AGS (simplex or duplex)Point alarms (as required)

When an alarm panel is required to display less than its maximum of 5 gas services, it is recommended that dis-plays are positioned in accordance with the following (see figure 2.4 & table 2.1):

TABLE 2.1: RECOMMENDED DISPLAY POSITIONS

Displaycolumn

1 2 3 4 5

1 gas Gas 1

2 gas Gas 1 Gas 2

3 gas Gas 1 Gas 2 Gas 3

4 gas Gas 1 Gas 2 Gas 3 Gas 4

5 gas Gas 1 Gas 2 Gas 3 Gas 4 Gas 5

FIGURE 2.4 - EXAMPLES OF RECOMMENDED DISPLAY POSITIONS

TYPI

CAL

1 GA

STY

PICA

L 2

GAS

FIGURE 2.3- LEGEND INSTALLATION

Col. 5 Col. 4 Col. 3 Col. 2 Col. 1

GAS LEGEND INSTALLATION SLOTS



2.2.4 Power supply printed circuit board. Fit (see figure 2.6).

Fit a plastic spacer over each of the four retaining studs in the backbox and locate the board on the studs. Fit the washers and tighten nuts in place just enough to hold the board and not crack it.

TYPI

CAL

4 GA

STY

PICA

L 5

GAS

TYPI

CAL

3 GA

S FIGURE 2.5 - DOOR INSTALLATION DETAIL.

M4 x 12 PAN HEAD x 2

DOOR ASSEMBLY

M4 x WASHER x 2

BACK BOX

2.2.3 Alarm panel front cover. Fit (SEE FIGURE 2.4).

Secure the front cover to backbox flange by securing hinge to backbox with screws provided.

FIGURE 2.6 - POWER SUPPLY BOARD INSTALLATION DETAILS.

M3 NUT x 4

PLASTIC SPACERS x 49.5 OD x 8mm LONG

POWER SUPPLY BOARDM3 STEEL WASHER x 1

M3 x 18 HEX SPACER

TERMINAL SHIELDM3 x 5 PAN HEAD

M3 NYLON WASHER x 3



CAUTION... Printed circuit boards are susceptible to dam-age by static electricity and must remain enclosed in their anti-static packaging until immediately required for use. Removed printed circuit boards must be placed in their anti-static packaging immediately on removal. To prevent damage to printed circuit boards, handle with care and do not over torque retaining nuts.

2.2.5 Electrical bonding lead. Fit (see figure 2.7).

Connect the flying earth lead from the power supply PCB mains terminal ‘E’ to the earthing stud in the alarm panel backbox and alarm panel front cover.

2.2.6 Cable Installation - Data CableDetails for the cable connections can be seen on figure 2.8 typical wiring diagrams can be seen on figure 2.9.

The Zeus 15 uses the EIA/TIA-485 (RS-485) data com-munications specification. Cable used for the alarm data must be suitable for these signals. Pneumatech MGS rec-ommends the following cable types

Manufacturer / Reference Part NumberBelden 8132 (2 pr, Non-Plenum) 6000174Belden 82842 (2 pr, Plenum)Alphawire 6455 (2 pr, Non-Plenum)

If segment lengths longer than 1200 metres, or non-stan-dard network topologies are required, a signal booster / splitter is available. See figure 10 for examples. Pneu-matech MGS recommend installation of 2 pair cable, such that a spare pair is available, if needed.

2.2.7 Cable Installation - Input CableDetails for the cable connections can be seen on figure 9, typical wiring diagrams can be seen on figure 2.9.

The Zeus 15 uses Pneumatech MGS Line continuity monitoring on all input signals. This type of connection is relatively immune to interference. Shielded cable is not a requirement, however, in extremely electrical noise shield-ing may be necessary. Pneumatech MGS recommends the following cable types, and a maximum length of 100 metres.

Manufacturer / Reference Part NumberAlphawire 1175C (Unshielded) 6000174Alphawire 1175L (Unshielded, LSZH)Alphawire 1295C (Shielded)

FIGURE 2.7 - EARTH LEAD ASSEMBLY DETAILS.

EARTH STUD EARTH LEAD EARTH STUD

M3 NUT

M3 WASHER

EARTH LEAD

M3 WASHER

M3 NUT

M3 STUD

M3 NUT

M3 STUD

M3 WASHER

EARTH LEAD

M3 NUT

M3 WASHER



FIGURE 2.8 - Zeus 15 EXAMPLE MAXIMUM OF CABLE SEGMENTS

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

IN OUT

BOOSTER

IN OUT

Zeus 15

DATA

IN OUT

LENGTH OF SEGMENT <1200 METRES LENGTH OF SEGMENT <1200 METRES

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

IN OUT

BOOSTER

IN OUT

LENGTH OF SEGMENT <1200 METRES

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

Zeus 15

DATA

IN OUT

LENGTH OF SEGMENT <1200 METRES

LENGTH OF SEGMENT <1200 METRES LENGTH OF SEGMENT <1200 METRES

2 segment network with a single, distant panel.

2 segment network arranged as a physical cross.

FIGURE 2.9 - Zeus 15 TYPICAL WIRING DIAGRAMS

Zeus 15 Alarm Terminals





PneumatechMGS



FIGURE 2.11 - Zeus 15 POWER SUPPLY BOARD CONNECTION LAYOUT

MULTI-WAY DATA RIB-

BON FROM LIGHT

BOARD

INPUTS FOR DISPLAY COLUMNS 1-5[COMMON] [FAULT CONDITIONS 1-4]

NOTE - FAULT CONDITION 1 COINCIDES WITH THE TOP FAULT CONDITION LED, WORKING DOWN IN ORDER

DATA TRANSMISSION CONNECTIONSIN [A] [B], OUT [A] [B] AND [SCREEN]

REMOTE AUDIBLE CONNECTION [+] [-]

OUTPUT RELAY FOR

TRANSMITTING SINGLE

EVENT ALARM[COMMON] [N/O]

MAIN POWER CONNECTION

[BONDING EARTH][MAIN EARTH]

[NEUTRAL] [LIVE]

Zeus 2.10 Typical Input Connection

Notes...1. If connected to Pneumatech MGS plant, line continuity monitors are integral to the plant.2. Unused terminals must be linked out with linking resistors provided.

Notes...1. A maximum of four point alarms may be connected to any channel.2. Unused terminals must be linked out with linking resistors provided.

Zeus 15 Alarm Terminals Zeus 15 Alarm Terminals

Zeus 6



3.0 Programming of the alarm system

The Zeus 15 central alarm system panels are programmed by setting a series of DIL and rotary switches on the rear of the light display board (see figure 3.3), as detailed in table 4. Rotary switches SW1 to SW5 assign the display columns to a specified input, or OFF. 1 to F correspond to ‘normal’ medical gas alarms, i.e. Normal + 4 alarm condi-tions with an audible on all alarm conditions. 8-way DIL switch SW6 sets details specific to each panel. Rotary switch SW7 sets the panel ID. Similar switches are on the rear of the relay board in a Zeus 15 relay interface panel.The Zeus 15 central alarm system works by identifying each individual gas channel or set of point alarm inputs with a unique ID and by identifying each panel with a unique ID. The rotary switches are hexadecimal i.e. A cor-responds to 10, B corresponds to 11 etc. for purposes of panel Ids. A channel must be set between 0 and F, 0 being OFF.

SW7 in conjunction with SW6-7 give each individual panel an ID between 0 and 31. The alarm panel with the highest ID must be set as the MASTER panel (SW6-6 ON), all other panels (including Zeus 15 Relay panels) must be set as slave panels (SW6-6 OFF). Therefore one alarm system may contain up to 32 panels the highest number being set as the MASTER.

SW6-8 enables or disables the central acknowledge fa-cility, ON enabled, OFF disabled. When the mute switch is operated on a central acknowledge panel displaying a fault condition, the flashing light on all panels showing the same fault changes from flashing to steady, and the au-dible alarm is muted for that particular gas.

NB there may be more than one central acknowledge panel on a system (i.e. two panels in the telephone ex-change on a 10 gas system), but there must be only one master panel on the system and it must have the highest panel ID on the system. SW6-1 to SW6-5 are used to identify where each chan-nel is input onto the system. If these switches are set to ON then this means that a particular gas or set of point alarms is input to this panel. On a complete system there should only be as many of these switches set to ON as there are channels on the complete system. When set to ON the alarm panel will look for a complete set of inputs, i.e. four fault conditions. If less than four inputs are been connected to a particular channel then the linking resis-tors provided must be used to “link out” the unused condi-tions. I.e. if a C11 vacuum plant is to be connected, then the input alarm conditions would be connected between Common, 1, 2 and 4. Therefore a linking resistor must be connected between Common and 3.

An alarm system is set up by allocating a number (1 to 9) or letter (A to F) to each set of plant inputs or point alarm inputs. Typically on a 4 gas system with point alarms:-

1 – Oxygen Manifold Alarms2 – Nitrous Oxide Manifold Alarms3 – Air Plant Alarms4 – Vacuum Plant AlarmsA – Ward 1 to 4 Point AlarmsB – Ward 5 to 8 Point Alarms

Therefore on every panel where Oxygen is to be displayed the appropriate gas number switch (SW1 to SW5) is set to 1. Where inputs are connected into the system the ap-propriate DIL switch (SW6-1 to SW6-5) must be set ON. For example, if air and vacuum plant are both input into channels 2 and 3 on a two gas panel in the plant room, then SW2 must be set to 3 to display air plant, SW3 must be set to 4 to display vacuum plant. SW1, SW4 and SW5 must be set to 0. Also SW6-2 and SW6-3 must be set to ON to indicate that these alarms are input to this panel.

SW8 selects the voltage range of the power supply, either 230V±10% or 115V±10%.

SW9 selects the termination and fail safe biassing options for the RS-485 port. A network is divided up into segments. Each segment can be up to 1200 metres (see figure 3.1 for examples), subject to cable type and site conditions.

For the two panels at the endpoints of each cable segment on a network, the termination resistor should be switched on with SW9-1 and SW9-2. For all other panels, SW9-1 and SW9-2 should be switched off. If a signal booster is the endpoint of a cable segment, the termination resis-tor of the booster should be enabled. See the instruction manual enclosed with the signal booster for more details.

For each cable segment on a network the fail safe resis-tors should be enabled on a single panel, by switching on SW9-3 and SW9-4. For all other panels, SW9-3 and SW9-4 should be switched off.

See figure 3.1 for example of programming settings for a typical installation. Table 2 shows a summary of the pro-gramming switch functions

NOTE:Whenever the programming switches on the light board are changed, it is necessary to reset the alarm by press-ing the reset button, or by cycling the power, to read in the new configuration values. 1.12 Programming of the alarm system



FIGURE 3.1 - EXAMPLE OF PROGRAMMING SWITCH SETTINGS FOR A TYPICAL INSTALLATION INCLUDING Zeus 15, Zeus 6

NOTES...Columns marked * indicate that gas service is input at that panelMaximum length of data cable segments is 1200 metresMaximum length of input cable segments is 100 metresMaximum length of remote audible cables is 50 metres

Switch settings for example installation

Panel Location TYPE

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW9C1

Gas 1C2Gas 2

C3Gas 3

C4Gas 4

C5Gas 5

C1Input

C2Input

C3Input

C4Input

C5Input

Master PanelID High

MasterMute

PanelID

RS485TERM

Vie I 0 0 1* 0 0 OFF OFF ON OFF OFF OFF OFF OFF 0 ON

Estates 1 R 1 2 3 4 5 OFF OFF OFF OFF OFF OFF OFF OFF 1 ON

Estates 2 R 6 7 8 9 A OFF OFF OFF OFF OFF OFF OFF OFF 2 OFF

South Plant Room I 0 5* 0 8* 0 OFF ON OFF ON OFF OFF OFF OFF 3 OFF

Day Surgery R 1 3 5 8 0 OFF OFF OFF OFF OFF OFF OFF OFF 4 OFF

Manifold Room 1 I 0 2* 0 3* 0 OFF ON OFF ON OFF OFF OFF OFF 5 OFF

Theatre Reception 1 R 1 2 3 6 7 OFF OFF OFF OFF OFF OFF OFF OFF 6 OFF

Theatre Reception 2 RI 0 9 0 A* 0 OFF OFF OFF ON OFF OFF OFF OFF 7 OFF

North Plant Room I 0 6* 7* 9* 0 OFF ON ON ON OFF OFF OFF OFF 8 OFF

Maternity Manifold Room I 0 0 4* 0 0 OFF OFF ON OFF OFF OFF OFF OFF 9 OFF

Maternity R 1 4 6 9 0 OFF OFF OFF OFF OFF OFF OFF OFF A OFF

Relay Interface 1 RL 1 2 3 4 5 OFF OFF OFF OFF OFF OFF OFF OFF B ON

Relay Interface 2 RL 6 7 8 9 A OFF OFF OFF OFF OFF OFF OFF OFF C OFF

Telephone Exchange 1 R 1 2 3 4 5 OFF OFF OFF OFF OFF OFF OFF OFF D OFF

Telephone Exchange 2 R 6 7 8 9 A OFF OFF OFF OFF OFF ON OFF OFF E OFF

* marks the channel as an input, Type ‘I’ - Input panel, Type ‘R’ - repeater panel, Type ‘RI’ - repeater/input panel, Type ‘R’ - relay interface panel

Zeus 15 ID: 0

LOCATION: VIE

COLUMN INPUTS DATA

0 0 1* 0 0 IN OUT

OXYGEN SUPPLY

Zeus SIGNAL BOOSTER/SPLITTER

LOCATION: SOUTH PLANT ROOM

DATA

A B

Zeus 15 ID: 3

LOCATION: SOUTH PLANT ROOM

COLUMN INPUTS DATA

0 5* 0 8* 0 IN OUT

MEDICAL AIR VACUUM SOUTH SOUTH

Zeus 15 ID: 4

LOCATION: DAY SURGERY

COLUMN INPUTS DATA

1 3 5 8 0 IN OUT

Zeus 15 ID: 2

LOCATION: ESTATES 2

COLUMN INPUTS DATA

6 7 8 9 A IN OUT

Zeus 15 ID: 1

LOCATION: ESTATES 1

COLUMN INPUTS DATA

1 2 3 4 5 IN OUT

Zeus 15 ID: 6

LOCATION: THEATRE 1

COLUMN INPUTS DATA

1 2 3 6 7 IN OUT

Zeus 15 ID: 5

LOCATION: MANIFOLD ROOM

COLUMN INPUTS DATA

0 2* 0 3* 0 IN OUT

OXYGEN NITROUS MANIFOLD OXIDE

Zeus 15 ID: 7

LOCATION: MANIFOLD ROOM

COLUMN INPUTS DATA

0 9 0 A* 0 IN OUT

Zeus 6

LOCATION: THEATRE RECEPTION

COLUMN INPUTS DATA

RELA

Y[C

] [N

/O]

O2

N2O

MA

4

MA

7

VAC 0 IN O

UT

Zeus 6

LOCATION: THEATRE 1

COLUMN INPUTS DATA

RELA

Y[C

] [N

/O]

O2

N2O

MA

4

MA

7

VAC 0 IN O

UT

Zeus 6

LOCATION: THEATRE AVSUs

COLUMN INPUTS DATA

RELA

Y[C

] [N

/O]

O2

N2O

MA

4

MA

7

VAC 0 IN O

UT

PRESSURE SWITCH INPUTS

Zeus 15 ID: 8

LOCATION: NORTH PLANT ROOM

COLUMN INPUTS DATA

0 6* 7* 9* 0 IN OUT

MEDICAL SURGICAL VACUUMAIR NORTH AIR NORTH

Zeus 15 ID: 9

LOCATION: MATERNITY MANIFOLD ROOM

COLUMN INPUTS DATA

0 0 4* 0 0 IN OUT

ENTONOX

Zeus 15 ID: A

LOCATION: MATERNITY UNIT

COLUMN INPUTS DATA

1 4 6 9 0 IN OUT

Zeus 15 (MASTER) ID: E

LOCATION: TELEPHONE EXCHANGE 2

COLUMN INPUTS DATA

6 7 8 9 A IN OUT

Zeus 15 ID: D

LOCATION: TELEPHONE EXCHANGE 1

COLUMN INPUTS DATA

1 2 3 4 5 IN OUT

Zeus 15 RELAY INTERFACE ID: C

LOCATION: TELEPHONE EXCHANGE R2

COLUMN INPUTS DATA

6 7 8 9 A IN OUT

Zeus 15 RELAY INTERFACE ID: B

LOCATION: TELEPHONE EXCHANGE R1

COLUMN INPUTS DATA

1 2 3 4 5 IN OUT

CABLE TYPESBelden 8729 2 pair RS485Alphawire 117C 5 coreAlphawire B964011 1 pairAlphawire 1173C 3 core

NOTES...Columns marked * indicate that gas service is input at that panelMaximum length of data cable segments is 1200 metresMaximum length of input cable segments is 100 metresMaximum length of remote audible cables is 50 metres



TABLE 3.2 Zeus 15 PROGRAMMING

Switch Setting/description

SW1 0 Display channel 1 Off, gas display

channel not used

1-F Display channel 1 Normal gas display HTM02-01


channel not used



channel not used



channel not used



channel not used


SW6

1OFF Channel 1 display not input at this panel

ON Channel 1 display input to this panel









6OFF to designate panel as slave

ON to designate panel as master (must be highest ID on system)

7OFF for panel ID 0 to 15

ON or panel ID 16-31

8OFF to disable central acknowledge facility

ON to enable central acknowledge facility

SW7 0-F Sets panel ID 0 to 15 or 16 to 31 in conjunction with SW6-7

SW8115 Set voltage to 115V±10%

230 Set voltage to 230V±10%

SW9

1-2OFF to disable RS485 termination

ON to enable RS485 termination(on cable segment endpoints only)

3-4OFF to disable RS485 fail safe biassing

ON to enable RS485 fail safe biassing(on one panel per cable segment only)

NOTE:Switches SW8 and SW9 are on the power PCB (see fig-ure 3.3). All other switches are on the light PCB

CONFIGURABLE DIP SWITCHES FOR DATA

TRANSMISSION

JUMPER JP1(SEE NOTE)

FIGURE 3.3 - Zeus 15 PROGRAMMING SWITCHES

PROGRAMMING SWITCHES (SEE SECTION 1.12)

AUDIBLE WARNING VOLUME CONTROL

SW1SW2SW3SW4SW5SW6SW7



4.5 Check the audible warning

Whilst carrying out paragraph 2.4, ensure that audible warning sounds for the appropriate alarm conditions. En-sure the operation of the MUTE switch cancels the audible and that the audible comes on again after approximately 15 minutes.

4.6 Check the Remote AudibleCheck that all remote audibles operate whenever there is an alarm condition on its parent panel. Check that the re-mote audible is silenced by operation of the MUTE switch on parent panel.

4.7 Checking the Relay Interface panelIf a relay interface panel is used with the alarm system, its operation must be checked whilst checking each gas service status applicable to the panel. With a gas service operating ‘normally’ the appropriate relay should be ener-gised and it’s contacts should be closed (see document number 2005202 for more details).

4.8 Checking the SYSTEM ALARM indicationThe procedure for checking that the SYSTEM ALARM cir-cuits are operating correctly is as follows, and should be carried out on all alarm panels:-

Electrical power supply. Switch OFF

Indications. Check.Check that POWER ON LED is extinguished and SYS-TEM ALARM LED is illuminated (flashing), accompanied by an audible warning (see table 3) after 30 seconds. If the panel receives an input, ensure that the gas display on all panels displaying that particular gas service have illuminated (flashing) LED’s for all input alarm stages and the SYSTEM ALARM LED illuminates with an audible warning.

Electrical power supply. Switch ON.Ensure that all indications return to NORMAL (see table 3), including displays on repeater panels.

Alarm panel front cover. Open.

Line continuity monitoring. Check open circuit.Disconnect input plug from gas service channel on power supply PCB (see figure 1.5). Check that the respective gas service channel indicates NORMAL and that all ‘alarm conditions’ are steady illuminations. Check that SYSTEM ALARM LED illuminates (flashing) accompanied by an audible warning. Press the TEST switch (see figure 1.1) and ensure that all alarm LED’s flash at a slower rate than other displays (see table 1.2). Check that all repeater pan-

4. COMMISSIONING

4.1 IntroductionCommissioning of the Zeus 15 medical gas central alarm installation is carried out in full after initial installation and the appropriate sections must be carried out after a ma-jor component change. The object of commissioning is to ensure that all components are serviceable and correctly programmed.

The commissioning procedure also ensures that anti-confusion checks are carried out and that the correct gas service is displayed in the designated column. Personnel carrying out the following commissioning procedure must be qualified and fully conversant with the information con-tained in this manual.

WARNING:Before commencing the commissioning procedure, en-sure that all installation procedures are complete and that all wiring is correctly connected. Before switching on the mains electrical supple, ensure the supply is correctly fused.

4.2 Functional testingWhen all alarm panels have been installed and connect-ed, the following must be carried out on every alarm panel in the systems. Commence the procedure at alarm panels which receive an input and progress until all ‘input’ pan-els are proven. Carry out the procedure on the ‘central’ panel(s). Repeat the procedure on all ‘repeater’ panels including those previously checked as input panels, En-sure that all gas service displays and all alarm panels are proven.

4.3 Basic ChecksCheck the multi-way ribbon cable is correctly connected (see figures 2.7 & 2.11). Switch ON electrical power sup-ply to alarm panel. Check that the POWER ON LED illumi-nates. Press the TEST switch and check that all the alarm panels LED’s illuminate (flashing) and the audible warning sounds (see figure 1.1 and table 1.2).

4.4 Check alarm conditionsTaking each gas service in turn, ensure that the NOR-MAL indication is illuminated in the correct display column on all panels displaying that gas service, when the gas service is set to work normally. Set the gas service to in-troduce the 1st, 2nd, 3rd and 4th alarm conditions and en-sure that the correct alarm light illuminates in each case. Throughout the procedure, ensure that the LED’s are the correct colour and gas service legends are correct and in accordance with the correct specification. This check must be carried out on all panels displaying that particular gas service.



els which display that input indicate all ‘alarm conditions’ and SYSTEM ALARM in a flashing mode.

Input. Reconnect.Reconnect the input plug to gas channel ensure that all indications are NORMAL. Repeat with all other inputs.

Line continuity monitoring. Check short circuit. Using a small piece of wire as a shorting link, short out input terminals (C and either terminal 1, 2, 3 or 4 as appli-cable, see figure 1.5). Check that the respective gas ser-vice display indicates NORMAL and that the respective ‘alarm condition’ illuminates (steady), see table 2). Check that the SYSTEM ALARM LED illuminates (flashing) ac-companied by an audible warning. Press the TEST switch (see figure 1.1) and ensure that the respective ‘alarm con-dition’ flashes at a faster rate than other displays.

Shorting link. Remove.Remove shorting link and repeat above step with all oth-er inputs. On completion, ensure that all indications are NORMAL.

Alarm panel front cover. Close and secure.

4.9 Check Central Acknowledge functionWith an alarm condition illuminated in flashing mode, operate MUTE switch (see figure 1.1) on a designated central acknowledge panel. Check all repeater and input panels displaying that alarm condition revert to a steady alarm indication.

4.10 Setting the alarm systemEnsure that all alarm panels are closed and secured. En-sure that each gas service installation is operating nor-mally and only NORMAL indications are displayed.

5. OPERATING INSTRUCTIONS

WARNING:Any alarm condition must be investigated and the gas ser-vice returned to normal as soon as possible.

CAUTION:The TEST and MUTE switches must only be operated by gentle finger pressure. Operation by use of instruments, tools or other implements will cause damage to the switch.

5.1 General operationDuring normal conditions the green (normal) LED’s are illuminated. Should a service failure sensor operate, the green (normal) LED is extinguished and the appropriate alarm mode LED (yellow or red) is illuminated and the audible warning sounds, if required (see table 3). The au-dible warning will continue until either the MUTE switch

is pressed or the gas service is returned to normal. If the mute facility is operated, the audible warning will re-sound after 15 mins, until either the MUTE switch is re-selected or the gas service is returned to normal. Should a fur-ther alarm condition occur after the panel has indicated an alarm and has been muted, the audible warning is re-activated.

5.2 System Alarm lightShould the SYSTEM ALARM light illuminate, a fault within the alarm system has occurred. The fault must be investi-gated and rectified immediately.

5.3 Test switch operationPressing the TEST switch illuminates (flashing) all LED’s within a panel and sounds the audible warning (see figure 1.1 & table 1.2).

5.4 Mute switch operation

Operation of the MUTE switch (see figure 1.1) following an alarm condition will switch off the audible warning. The audible warning will resound after 15 mins until either the MUTE switch is re-selected or the gas service returns to NORMAL.

6. MAINTENANCE

6.1 IntroductionZeus 15 gas central alarm systems are designed to op-erate with the minimum of maintenance, however regu-lar minor maintenance operations are recommended to prove the system integrity. Maintenance operations are carried out in accordance with the planned preventative maintenance contract purchased by the customer. Mainte-nance engineers must fully understand the alarm system and must be conversant with the information contained in this manual.

WARNING:Obtain a work permit before commencing any work on a medical alarm system.

6.2 Tools and equipmentExcept for the special key provided, no special tools are required, however common hand tools are required and they must be clean and serviceable. All necessary spare parts must be obtained before commencing work.

6.3 Customer recommended maintenanceThe following routine operations are the recommended minimum:-



LIGHT BOARD(P/N 6000169)

MULTI-WAY RIBBON CON-NECTOR

LIGHT BOARD FASTENERM3 NUTS (5.5 A/F)

& M3 NYLON WASHERSPOWER BOARD FASTENER

M3 NUTS (5.5 A/F)& M3 WASHERS

M3 NYLON WASHERS

M3 STEEL WASHERS

M3 PILLAR (5.5 A/F)M3 PAN HEAD MACHINE SET SCREW

GAS SUPPLY LEGEND SLOTS

POWER SUPPLY BOARD(P/N 6000168)

FIGURE 5.1 - POWER SUPPLY BOARD COMPONENT REPLACEMENT

BACKUP BATTERY(P/N 1828825)

BACKUP BATTERYCONNECTOR

F2 CLIP ON COVER1A FUSE (P/N 1825372)

ELV 500mA FUSE [F3]

F3 CLIP ON COVER500mA FUSE (P/N 1826675)

F3 CLIP ON COVER500mA FUSE - 230V (P/N 1826675)

1A FUSE - 115V (P/N 1825372)

MULTI-WAY RIBBON CON-NECTOR

NOTE....Make note of the respective positions of all the input connectors prior to disconnection in preparation for re-connection



FIGURE 5.3- BOARD FUNCTION DIAGNOSTIC LED’S

LED 5LED 4

LED 1

LED 3

LED 2

FIGURE 5.2 - LIGHT BOARD COMPONENT REPLACEMENT

ROW OF GREEN LED’S (P/N 6000152)

ROW OF YELLOW LED’S (P/N 6000154)

ROW OF RED LED’S (P/N 6000153)

GREEN POWER ONLED (P/N 6000155)

RED SYSTEM ALARMLED (P/N 6000156)

SPEAKER

SPEAKERCONNECTOR



6.4 Weekly inspectionPress the TEST button on each alarm panel and ensure that all LED displays illuminate (flashing) and the audible warning sounds. If the remote audible is connected to the alarm panel, ensure that it operates simultaneously with the panel.

6.5 Annual InspectionThe annual inspection proves the integrity of the intercon-necting wiring between each gas service sensor and input alarm panel, the line continuity monitoring circuits and the integrity of the internal alarm panel circuits and intercon-necting data transmission cable. The annual inspection must be carried out on all alarm panels and consists of the operations in paragraphs 2.3 to 2.10 inclusive.

6.6 Alarm Component ReplacementFigures 5.1, 5.2 & 5.3 gives details for replacing alarm components

Figure 5.1 shows details for accessing the alarm panel and disconnection the power supply and light board (see section 1.7.1 figures 1.5, 1.6 and table 1.2 for setting up a power board).

Figure 5.1 shows details for replacing the fuses, backup battery and disconnecting the electrical and data sockets.

NOTE...The replacement battery may take up to 72 hours to fully recharge.

Figure 5.2 shows details for replacing LED’s and speaker.

WARNING:ENSURE THAT THE MAINS ELECTRICAL SUPPLY IS OFF AND REMAINS ISOLATED DURING WORK ON THE INTERNALS OF THE ALARM PANEL.

CAUTION:Printed circuit boards are susceptible to damage by static electricity and must remain enclosed in their anti-static packaging until immediately required for use. Removed printed circuit boards must be placed in their anti-static packaging immediately on removal. To prevent damage to printed circuit boards, handle with care and do not over torque retaining nuts.

FIGURE 5.4 - POWER SUPPLY AND LIGHT DISPLAY PCB REPLACEMENT

SECURITY FASTENER(Requires key, supplied with alarm panel

NOTE...To access the LED’s the light board will need to be re-moved from the alarm panel (see figure 1.5)

Alarm panel test.

After performing any work on the alarm Ensure that POW-ER ON LED is illuminated and SYSTEM ALARM LED is extinguished. Press TEST switch and ensure all LED’s illuminate (flashing) and audible warning operates (see Line continuity FAULT, TEST SWITCH on Figure1.1 and table 1.2).

7. FAULT DIAGNOSIS

7.1 IntroductionThe following tables detail possible defects/symptoms which may occur with the Zeus 15 medical gas central alarm system, with the necessary rectification action.

TABLE 7.1: TEST OR MUTE SWITCH FAILS TO OPER-ATE

Possible cause Remarks/rectification action

1. Faulty switches Replace the light display PCB .

TABLE 7.2: SINGLE LED INDICATOR FAILS TO ILLUMI-NATE


1. Faulty LED indicator Replace LED.

2. Faulty light display PCB. Replace light display PCB.



TABLE 7.3: ALARM PANEL LOSES ALL DISPLAYS EX-CEPT SYSTEM ALARM


1. Mains electrical power supply failure

Check mains electrical power supply into the panel

2. Power supply fuses blown

Check condition of fuses on power supply PCB. Replace as necessary

3. Main ribbon connector faulty

Check main ribbon connector on power supply PCB. Replace power supply PCB as necessary.

4. Main ribbon damaged

Check main ribbon cable. If damaged replace light display PCB.

5. Power supply PCB faulty

Replace power supply PCB.

6. Light display PCB faulty

If all other checks have failed to rectify the fault, replace the light display PCB.

TABLE 7.4: SYSTEM ALARM/FAULT INDICATION WITH A SERVICEABLE GAS


1. Electrical power failure

Check POWER ON indication is illuminated and other indications are normal.

2. Gas service pressure incorrect

Independently check gas service pressure in area being monitored

3. Pressure switch stuck in fail

Check resistance of interconnecting wiring, line monitor module and position pressure switch. (180Ω ± 5% with contacts closed), (690Ω ± 5% with contacts open). If value is incorrect check continuity exists through plant alarm relays/pressure switch. Check pressure switch adjustment and replace switch as necessary, complete with line continuity module

4. Wiring defect between panel and pressure switch / plant

With a serviceable pressure switch fitted, check resistance of interconnecting wiring and line monitor module (<10 ohms indicates a short circuit or >5K ohms indicates an open circuit). Locate wiring defect, repair as necessary or replace line monitor module.






Replace power supply PCB.



TABLE 7.5: REMOTE ALARM/RECORDING SYSTEM NOT OPERATING CORRECTLY


1. JP1 set incorrectly

Check that the jumper on JP1 is set to the correct position.

2. Faulty interface relay With all gas services indicating NORMAL, check that continuity exists between both relay terminals (N/O and C) on power supply PCB. With a gas service failure indication, check that relay contacts open and break the circuit between the relay terminals. Replace power supply PCB if relay proves to be faulty.

3. Interconnecting wiring faulty

With a serviceable relay fitted and the fault still evident, the interconnecting wiring to the remote system may be faulty. Carry out continuity checks, locate and rectify the defective wiring or replace.

4. Remote alarm system faulty

Investigate fault, repair or replace re-mote system as necessary

TABLE 7.6: GAS SERVICE INDICATES NORMAL WITH A GAS SERVICE FAILURE CONDITION


1. Gas service failure set incorrectly

Check that the gas service sensor is operating at the correct pressure

2. Faulty wiring Carry out resistance checks between input and alarm panel (Table 9). Repair/replace defective wiring as necessary


Replace power supply PCB


If all other checks have failed to rectify the fault, replace the light display PCB

TABLE 7.7: SYSTEM ALARM AND AUDIBLE FAIL TO OPERATE ON POWER FAILURE


1. Back up battery faulty Replace back up battery.





4. Power supply PCB faulty Replace power supply PCB.



TABLE 7.8: A GAS SERVICE DISPLAY FLASHING (IN-CLUDING NORMAL) WITH SYSTEM ALARM

Notes…



1. Check status of other panels which display that particu-lar gas service. If gas service display is flashing carry out steps 1-5 inclusive.2. If the gas display on other alarm panel is illuminated carry out steps 4 and 5.


1. Power supply failure to alarm panel which receives input.

Check power supply to alarm panel which receives gas service input

2. Faulty input/wiring Carry out resistance checks between gas service sensor and input alarm panel

3. Input power supply

Replace power supply PCB

4. Transmission between input

Check for continuity of data and other panels faulty transmission cables between panels. Repair/replace as necessary

5. Light display faulty Either input or repeater panel may be faulty. Replace light display PCB on input panel. Replace light display PCB on repeater panel.

TABLE 7.9: BOARD FUNCTION DIAGNOSTIC LED’S

LED No. Function Colour Status

LED 1 Heartbeat

Green - flashing OK

Yellow - flashing Fault

Red Incorrect software for PCB

Off Mains power off

LED 2RS-485

Transmit Activity

Green - Blinking RS-485 transmitting

Solid or off No activity

LED 3RS-485

Receiver Activity

Red - Blinking RS-485 receiving


LED 4RS-232

Transmit Activity

Green - Blinking RS-232 transmitting


LED 5RS-232

Receiver Activity

Red - Blinking RS-232 receiving


For LED location on the power supply board see figure 12.

8. RECOMMENDED SPARES

TABLE 8.1 : LIST OF RECOMMENDED SPARES

Description Part Number

Power supply PCB (dual voltage) 6000168

Light display PCB 6000169

Back up battery assembly 6000157

Green LED array 6000152

Yellow LED array 6000154

Red LED array 6000153

Power on LED array 6000155

System alarm LED array 6000156

Fuse 500mA 6000159

Fuse 1A 6000160

Line continuity monitor (double) 6000150

Line continuity monitor (single) 6000151

Alarm panel cover and fascia 6000170

Power supply PCB (Alarm BMS Interface) 6000243

Relay PCB (Alarm BMS Interface) 6000172

8.1 Spares schedulingThe recommended holding of spares depends upon the number of alarm panels installed and is detailed in table 16. The number recommended for overseas customers is expressed in brackets and takes into account expected transport delays.

TABLE 8.2 : MINIMUM RECOMMENDED SPARES SCHEDULING PER ANNUM

DescriptionPart

NumberNumber of alarm panels

installed

5 - 10 10 - 15 15 - 25

Power supply PCB (dual voltage) 6000168 1 (2) 2 (4) 3 (5)

Light display PCB 6000169 1 (1) 2 (2) 2 (3)

Back up battery assembly 6000157 1 (2) 2 (4) 3 (5)

Green LED array 6000152 3 (6) 6 (12) 6 (12)

Yellow LED array 6000154 3 (6) 6 (12) 6 (12)

Red LED array 6000153 3 (6) 6 (12) 6 (12)

Power on LED array 6000155 1 (2) 3 (6) 3 (6)

System alarm LED array 6000156 1 (2) 3 (6) 3 (6)

Fuse 500mA 6000159 1 (2) 3 (6) 3 (6)

Fuse 1A 6000160 1 (2) 3 (6) 3 (6)

Line continuity monitor (double) 6000150 2 (4) 3 (6) 4 (8)

Line continuity monitor (single) 6000151 2 (4) 3 (6) 4 (8)

Alarm panel cover and fascia 6000170 0 (0) 0 (0) 0 (0)

Power supply PCB (Alarm BMS Interface) 6000243 1 (2) 2 (4) 3 (5)

Relay PCB (Alarm BMS Interface) 6000172 1 (1) 2 (2) 2 (3)



Sales Spares ServiceT: 44 (0) 1235 463010 T: 44 (0) 1235 463053 T: 44 (0) 1235 463051F: 44 (0) 1235 463011 F: 44 (0) 1235 463011 F: 44 (0) 1235 [email protected] [email protected] [email protected]

Pneumatech Medical Gas Solutions Unit 18 Nuffield WayAbingdonOxfordshireOX14 1RL UK

Document 8102341078 Ref. 01. 12/10/2015© Pneumatech Medical Gas Solutions 2015. All rights reserved.

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