Pneumatech Zeus 15 Central Alarm Installation, Operation And Maintenance Manual

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Zeus 15 Central Alarm

Zeus Medical Gas Alarm Systems

Installation, Operation and Maintenance Manual

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Zeus Central 15 Alarm Page 2

Installation, Operation and Maintenance Manual

Published by Pneumatech Medical Gas Solutions

All possible care has been taken in the preparation of this publication, but Pneumatech Medical Gas Solutions 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.

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.

Important Personnel 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 Solutions Unit 18 Nuffield Centrum Nuffield Way Abingdon Oxfordshire OX14 1RL UK

http://www.p-mgs.com

Sales Spares Service Tel: 44 (0) 1235 463010 Tel: 44 (0) 1235 463053 Tel: 44 (0) 1235 463051 Fax: 44 (0) 1235 463011 Fax: 44 (0) 1235 463011 Fax: 44 (0) 1235 463011 [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 Number Lot/ Batch Number Approximate date of purchase Apparent fault.

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

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Table of Contents

0. SAFETY, STORAGE AND HANDLING 4

0.1 Symbols 4

0.2 Environmental Transport and Storage Conditions & Operating Conditions 4

1. DESCRIPTION AND OPERATION 5

1.1 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 14

2.1 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 23

4.1 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 24

5.1 General operation 24

5.2 System Alarm light 24

5.3 Test switch operation 24

5.4 Mute switch operation 24

6. MAINTENANCE 24

6.1 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 27

7.1 Introduction 27

8. RECOMMENDED SPARES 29

8.1 Spares scheduling 29

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Alternating current

Static sensitive components

Do not dispose of in general waste

0.2 Environmental Transport and Storage Conditions & Operating Conditions

Min ambient temperature - 0 degrees Celsius Max ambient temperature - 50 degrees Celsius Min relative humidity (non-condensing) - 10% Max relative humidity (non-condensing) - 95% Atmospheric pressure range - 70-110 kPa

0.3 Cleaning The alarm cover and fascia should be wiped over with a damp cloth frequently to remove any dust or foreign substances.

0.4 Environmental Protection Discard the unit and/or components in line with WEEE regulations, or other local applicable regulations.

0.5 Electromagnetic Interference Ensure any input and data cables are physically separated from other mains and data cables.

0.6 Electrical Details WARNING... 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 Row

Power 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 Symbols

The 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

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

Current requirements

3.0 amps Type of protection against electric shock Class 1 (Mains supplied equipment using a protected earth)

Mode of operation Continuous (equipment may be left switched on indefinitely)

Degree of protection against ingress of liquids IPX32

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

Degree of protection Type B (no Applied Part or with and Applied Part not designed to meet F type (floating) requirements)

Degree of protection against flammable anaesthetic mixtures Not protected (not suitable for use with flammable gases)

Rechargeable Battery The rechargeable battery (ref. 6000157) should be replaced every 5 years.

1. DESCRIPTION AND OPERATION

1.1 Introduction

The 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

(Oponal)

Alarm Panel

Security Fastener

223

287

VIEW FROM FRONT

1.20

50 40 40 40 40

260

VIEW FROM BOTTOM

196

VIEW FROM SIDE

30 200 30

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 transmission 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 monitoring requirements (see section 3 for programming details).

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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 equipment, 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 programmed 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 operated. 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 displays, a POWER ON indication, a SYSTEM ALARM indication, MUTE and TEST switches and an audible warning programmed to operate depending upon the alarm condition 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 Standards

The Pneumatech MGS Zeus 15 medical gas central alarm system is specifically designed and manufactured to fully satisfy the National Health Service – Model Engineering Specification C11, and is therefore ideal for HTM0201/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 designed 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 temperatures 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 Panels

Each alarm panel consists of a first and second fix assembly, and are suitable for use with either surface or concealed installations. A bezel plate is provided for use with concealed installations and is fitted to the first fix assembly 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 provides 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 windows 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 & Figure 1.3. Gas service legends are printed on acetate strips, which slide into the alarm panel front cover through the uppermost internal slots. The correct combination of gas service 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 legends 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 displays

Coloured 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 fault Electrical power supply failure Internal alarm failure Data 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-

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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 rectify the fault which produced the alarm condition. This information 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 reset when the channel returns to normal, if a further alarm occurs, or the 15 minute time-out expires.

1.7 Printed circuit boards

Two 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 installation complies with all relevant British Standard specifications, 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 indicator. 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 subsequent 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 display 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 condition. All flashing displays are programmed at sixty flashes per minute, 0.5 seconds on and 0.5 seconds off in accordance with C11 and HTM02-01/HTM2022.

1.4.5 Display positions 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)

1.5 Test and Mute switches

(see figure 1) TEST and MUTE switches require only gentle finger pressure. 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 instruments, tools or other implements will cause damage to the switch.

1.6 Audible warning

The 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 simultaneously 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 audible warning will operate simultaneously with the indication. Following a mute condition and a continuing alarm indication, the audible warning will resound after 15 minutes 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.

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FIGURE 1.4 - Zeus 15 LIGHT BOARD

AUDIBLE WARNING

SPEAKER CONNECTION

POWER ON LED

SYSTEM ALARM LED

NORMAL CONDITION LED’s

FAULT CONDITION LED’s

RETAINING STUD LOCATIONS x 6

AUDIBLE WARNING SPEAKER

PROGRAMMING SWITCHES (SEE SECTION 1.12)

MULTI-WAY RIBBON TO POWER BOARD

AUDIBLE WARNING VOLUME CONTROL

SW1SW2SW3SW4SW5SW6

SW7

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 connectors. 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 appropriate 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 enclosed, 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 microprocessor which controls the operation of the alarm panel. A “MAINTENANCE MUTE” push button ( see figure 1.6) is fitted on the power supply PCB and is accessible with the alarm panel front cover open. With an alarm condition displayed, operation of this button disables audible 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 returning 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 matching 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 combination 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 contacts open when any of the twenty alarm conditions are initiated. Terminals are also provided to enable connection of a remote audible warning device (AUD+ and AUD-). It is recommended that the input and data transmission cables are installed separate from the mains cable and maximum

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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 SWITCH 230V 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 4

MULTI-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 CONNECTIONS IN [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]

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cable length between alarm panel and input should not exceed 100 Metres. Alarm panels accept a mains electrical power supply cable of 2.5 sq mm, and all other terminals 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 battery provides power for both the SYSTEM ALARM indication 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 indicators The 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 fault

CAUTION: 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 detection 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 NORMAL LED remains illuminated, the appropriate gas service 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 devices

Remote 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 terminals 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 panel

A dedicated relay interface panel assembly enables the Zeus 15 medical gas central alarm system to be interconnected to an event recording circuit of a building management system, or other suitable alarm system. The relay interface unit is housed within a standard alarm panel enclosure and provides a fascia display of both POWER ON and SYSTEM ALARM. The relay interface panel incorporates a dedicated power supply PCB and a dedicated relay 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 operating normally, relay contacts are closed providing continuity 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 terminals 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 system

Each 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).

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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 condition 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 services 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 available 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 warning, 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 indicates 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.

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TABLE 1.2: Zeus 15 ALARM LOGIC – INPUT PANEL

Condion Input Panel - Alarm displays

Normal NORMAL (steady)

Alarm

condion

Alarm (ashing), Audible if required.

Alarm condion

Example shows fault on channel 1, column 1

Warnings condions - Yellow LED’s

Emergency condions - Red LED’s

Line

contact fault

NORMAL (steady)

Alarm condions (steady) SYSTEM ALARM (ashing)

Audible

Alarm condion

System alarm

Example shows fault on channel 4, column 1

Press TEST Switch, line connuity fault ashes

slower than other LED’s to indicate an open circuit

or faster to indicate a short circuit

Alarm condions

Test switch

Power failure

to input panel

SYSTEM ALARM (ashing) Audible (aer 30 seconds) POWER ON LED exnguished

System alarm Power 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 (ashing)

SYSTEM ALARM

(ashing)

Audible

TABLE 4: Zeus 15 ALARM LOGIC – REPEATER PANEL

Condion Repeater Panel - Alarm displays

Normal NORMAL (steady)

Alarm

condion

Alarm (ashing), Audible if required.

Alarm condion

Example shows fault on channel 1, column 1

from the input panel.

Warnings condions - Yellow LED’s

Emergency condions - Red LED’s

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Line

contact fault

NORMAL (steady)

Alarm condions (steady) SYSTEM ALARM (ashing)

Audible

Alarm condion

System alarm

Example shows fault on channel 4, column 1

from the input panel.

Press TEST Switch, line connuity fault ashes

slower than other LED’s to indicate an open

circuit or faster to indicate a short circuit

Alarm condions

Test switch

Power failure

to repeater panel

SYSTEM ALARM (ashing) Audible (aer 30 seconds) POWER ON LED exnguished

System alarm Power on LED

Repeater panel display when power

fails to a

connected input panel

All alarms condions (ashing) SYSTEM ALARM (ashing)

Audible

Alarm condions

System 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 condions (ashing) SYSTEM ALARM (ashing)

Audible

Alarm condions

System alarm

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2. INSTALLATION

2.1 Installation of a first fix panel

The alarm panel backbox is suitable for both surface and concealed installation and is annotated ‘TOP’ inside to ensure 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 grommets/cable glands as required by the contract specification. 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

196

105

200

KNOCKOUT SEGMENTS

BACKBOX SURFACE

40 40 40 40

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 46

25 (ALL ROUND)

1.20

BEZEL

(OPTIONAL)

SECURING SCREW

(M4 x 12 PAN HEAD)

BACK BOX

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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 ISOLATED UNTIL REQUIRED DURING THE COMMISSIONING 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 necessary 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:-

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

TABLE 2.1: RECOMMENDED DISPLAY POSITIONS

Display column

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

TYPICAL 1 GASTYPICAL 2 GAS

FIGURE 2.3- LEGEND INSTALLATION

Col. 5

Col. 4

Col. 3

Col. 2

Col. 1

GAS LEGEND INSTALLATION SLOTS

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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.

TYPICAL 4 GASTYPICAL 5 GAS TYPICAL 3 GAS

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 4

9.5 OD x 8mm LONG

POWER SUPPLY BOARD

M3 STEEL WASHER x 1

M3 x 18 HEX SPACER

TERMINAL SHIELD

M3 x 5 PAN HEAD

M3 NYLON

WASHER x 3

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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.

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 Cable Details 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 communications specification. Cable used for the alarm data must be suitable for these signals. Pneumatech MGS recommends the following cable types

Manufacturer / Reference Part Number

Belden 8132 (2 pr, Non-Plenum) 6000174

Belden 82842 (2 pr, Plenum)

Alphawire 6455 (2 pr, Non-Plenum)

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

2.2.7 Cable Installation - Input Cable Details 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 shielding may be necessary. Pneumatech MGS recommends the following cable types, and a maximum length of 100 metres.

Manufacturer / Reference Part Number

Alphawire 1175C (Unshielded) 6000174

Alphawire 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

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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

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

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

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

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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 CONNECTIONS IN [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 Connecon

Notes...

1. If connected to Pneumatech MGS plant, line connuity

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

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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 conditions 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 corresponds 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 facility, 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 audible 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 exchange 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 channel 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 resistors provided must be used to “link out” the unused conditions. 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 Alarms 2 – Nitrous Oxide Manifold Alarms 3 – Air Plant Alarms 4 – Vacuum Plant Alarms A – Ward 1 to 4 Point Alarms B – 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 appropriate 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 resistor 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 resistors should be enabled on a single panel, by switching on SW9-3 and SW9-4. For all other panels, SW9-3 and SW94 should be switched off.

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

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

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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 panel Maximum length of data cable segments is 1200 metres Maximum length of input cable segments is 100 metres Maximum length of remote audible cables is 50 metres

Switch sengs for example installaon

Panel Locaon

TYPE

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW9

Gas 1

Gas 2C3Gas 3C4Gas 4C5Gas 5C1InputC2InputC3InputC4InputC5Input

Master

Panel

ID High

Master

Mute

PanelIDRS485

TERM

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 Recepon 1 R 1 2 3 6 7 OFF OFF OFF OFF OFF OFF OFF OFF 6 OFF

Theatre Recepon 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 D ATA

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 D ATA

0 5* 0 8* 0 IN OUT

MEDICAL AIR VACUUM SOUTH SOUTH

Zeus 15 ID: 4

LOCATION: DAY SURGERY

COLUMN INPUTS D ATA

1 3 5 8 0 IN OUT

Zeus 15 ID: 2

LOCATION: ESTATES 2

COLUMN INPUTS D ATA

6 7 8 9 A IN OUT

Zeus 15 ID: 1

LOCATION: ESTATES 1

COLUMN INPUTS D ATA

1 2 3 4 5 IN OUT

Zeus 15 ID: 6

LOCATION: THEATRE 1

COLUMN INPUTS D ATA

1 2 3 6 7 IN OUT

Zeus 15 ID: 5

LOCATION: MANIFOLD ROOM

COLUMN INPUTS D ATA

0 2* 0 3* 0 IN OUT

OXYGEN NITROUS MANIFOLD OXIDE

Zeus 15 ID: 7

LOCATION: MANIFOLD ROOM

COLUMN INPUTS D ATA

0 9 0 A* 0 IN OUT

Zeus 6

LOCATION: THEATRE RECEPTION

COLUMN INPUTS DATA

RELAY

[C] [N/O]

N2O

MA 4

MA 7

VAC

OUT

Zeus 6

LOCATION: THEATRE 1

COLUMN INPUTS DATA

RELAY

[C] [N/O]

N2O

MA 4

MA 7

VAC

OUT

Zeus 6

LOCATION: THEATRE AVSUs

COLUMN INPUTS DATA

RELAY

[C] [N/O]

N2O

MA 4

MA 7

VAC

OUT

PRESSURE SWITCH INPUTS

Zeus 15 ID: 8

LOCATION: NORTH PLANT ROOM

COLUMN INPUTS D ATA

0 6* 7* 9* 0 IN OUT

MEDICAL SURGICAL VACUUM AIR 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 D ATA

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 D ATA

1 2 3 4 5 IN OUT

Zeus 15 RELAY INTERFACE ID: C

LOCATION: TELEPHONE EXCHANGE R2

COLUMN INPUTS D ATA

6 7 8 9 A IN OUT

Zeus 15 RELAY INTERFACE ID: B

LOCATION: TELEPHONE EXCHANGE R1

COLUMN INPUTS D ATA

1 2 3 4 5 IN OUT

CABLE TYPES Belden 8729 2 pair RS485 Alphawire 117C 5 core Alphawire B964011 1 pair Alphawire 1173C 3 core

NOTES... Columns marked * indicate that gas service is input at that panel

Maximum length of data cable segments is 1200 metres Maximum length of input cable segments is 100 metres Maximum length of remote audible cables is 50 metres

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TABLE 3.2 Zeus 15 PROGRAMMING

Switch

Setting/description

SW1

Display channel 1 O, gas display channel not used

1-F

Display channel 1 Normal gas display HTM02-01

SW2

Display channel 2 O, gas display channel not used

1-F

Display channel 2 Normal gas display HTM02-01

SW3

Display channel 3 O, gas display channel not used

1-F

Display channel 3 Normal gas display HTM02-01

SW4

Display channel 4 O, gas display channel not used

1-F

Display channel 4 Normal gas display HTM02-01

SW5

Display channel 5 O, gas display channel not used

1-F

Display channel 5 Normal gas display HTM02-01

SW6

OFF Channel 1 display not input at this panel

ON Channel 1 display input to this panel

OFF Channel 2 display not input at this panel

ON Channel 2 display input to this panel

OFF Channel 3 display not input at this panel

ON Channel 3 display input to this panel

OFF Channel 4 display not input at this panel

ON Channel 4 display input to this panel

OFF Channel 5 display not input at this panel

ON Channel 5 display input to this panel

OFF to designate panel as slave

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

OFF for panel ID 0 to 15

ON or panel ID 16-31

OFF 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

SW8

115 Set voltage to 115V±10%

230 Set voltage to 230V±10%

SW9

1-2

OFF to disable RS485 termination

to enable RS485 termination (on cable segment endpoints only)

3-4

OFF to disable RS485 fail safe biassing

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

NOTE: Switches SW8 and SW9 are on the power PCB (see figure 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

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4.5 Check the audible warning

Whilst carrying out paragraph 2.4, ensure that audible warning sounds for the appropriate alarm conditions. Ensure 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 Audible

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

4.7 Checking the Relay Interface panel

If 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 energised and it’s contacts should be closed (see document number 2005202 for more details).

4.8 Checking the SYSTEM ALARM indication

The procedure for checking that the SYSTEM ALARM circuits 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 SYSTEM 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 Introduction

Commissioning 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 major component change. The object of commissioning is to ensure that all components are serviceable and correctly programmed.

The commissioning procedure also ensures that anticonfusion 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 contained in this manual.

WARNING: Before commencing the commissioning procedure, ensure 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 testing

When all alarm panels have been installed and connected, 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’ panels 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, Ensure that all gas service displays and all alarm panels are proven.

4.3 Basic Checks

Check the multi-way ribbon cable is correctly connected (see figures 2.7 & 2.11). Switch ON electrical power supply to alarm panel. Check that the POWER ON LED illuminates. 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 conditions

Taking each gas service in turn, ensure that the NORMAL 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 introduce the 1st, 2nd, 3rd and 4th alarm conditions and ensure 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.

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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 applicable, see figure 1.5). Check that the respective gas service display indicates NORMAL and that the respective ‘alarm condition’ illuminates (steady), see table 2). Check that the SYSTEM ALARM LED illuminates (flashing) accompanied by an audible warning. Press the TEST switch (see figure 1.1) and ensure that the respective ‘alarm condition’ flashes at a faster rate than other displays.

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

Alarm panel front cover. Close and secure.

4.9 Check Central Acknowledge function

With 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 system

Ensure that all alarm panels are closed and secured. Ensure that each gas service installation is operating normally and only NORMAL indications are displayed.

5. OPERATING INSTRUCTIONS

WARNING: Any alarm condition must be investigated and the gas service 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 operation

During 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 audible 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 further alarm condition occur after the panel has indicated an alarm and has been muted, the audible warning is reactivated.

5.2 System Alarm light

Should the SYSTEM ALARM light illuminate, a fault within the alarm system has occurred. The fault must be investigated and rectified immediately.

5.3 Test switch operation

Pressing 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 Introduction

Zeus 15 gas central alarm systems are designed to operate with the minimum of maintenance, however regular 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. Maintenance 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 equipment

Except 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 maintenance

The following routine operations are the recommended minimum:-

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LIGHT BOARD

(P/N 6000169)

MULTI-WAY RIBBON CON-

NECTOR

LIGHT BOARD FASTENER

M3 NUTS (5.5 A/F)

& M3 NYLON WASHERS

POWER 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 BATTERY

CONNECTOR

F2 CLIP ON COVER

1A FUSE (P/N 1825372)

ELV 500mA FUSE [F3]

F3 CLIP ON COVER

500mA FUSE (P/N 1826675)

F3 CLIP ON COVER

500mA 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 reconnection

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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 ON LED (P/N 6000155)

RED SYSTEM ALARM

LED (P/N 6000156)

SPEAKER

CONNECTOR

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6.4 Weekly inspection

Press 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 Inspection

The annual inspection proves the integrity of the interconnecting 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 interconnecting 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 Replacement

Figures 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 removed from the alarm panel (see figure 1.5)

Alarm panel test.

After performing any work on the alarm Ensure that POWER 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 Introduction

The 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 OPERAT E

Possible cause Remarks/rectification action

1. Faulty switches Replace the light display PCB .

TABLE 7.2: SINGLE LED INDICATOR FAILS TO ILLUMINATE

Possible cause Remarks/rectification action

1. Faulty LED indicator Replace LED.

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

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TABLE 7.3: ALARM PANEL LOSES ALL DISPLAYS EXCEPT SYSTEM ALARM

Possible cause

Remarks/rectification action

1. Mains electrical

power supply failure

Check mains electrical power supply into the panel

2. Power supply fuses

blown

Check condion 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 recfy the fault, replace the light display PCB.

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

Possible cause

Remarks/rectification action

1. Electrical power

failure

Check POWER ON indicaon is illuminated and other indicaons 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 interconnecng

wiring, line monitor module and

posion pressure switch. (180Ω ± 5% with contacts closed), (690Ω ± 5% with contacts open). If value is incorrect check connuity exists through

plant alarm relays/pressure switch. Check pressure switch adjustment and replace switch as necessary, complete with line

connuity module

4. Wiring defect

between panel and pressure switch / plant

With a serviceable pressure switch ed, check resistance of interconnecng

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.

5. Main ribbon

connector faulty

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

6. Main ribbon damaged

Check main ribbon cable. If damaged

replace light display PCB.

7. Power supply PCB

faulty

Replace power supply PCB.

8. Light display PCB

faulty

If all other checks have failed to recfy the fault, replace the light display PCB.

TABLE 7.5: REMOTE ALARM/RECORDING SYSTEM NOT OPERATING CORRECTLY

Possible cause

Remarks/rectification action

1. JP1 set incorrectly

Check that the jumper on JP1 is set to

the correct posion.

2. Faulty interface relay With all gas services indicang NORMAL, check that connuity exists

between both relay terminals (N/O and C) on power supply PCB. With a

gas service failure indicaon, check

that relay contacts open and break the circuit between the relay terminals.

Replace power supply PCB if relay proves to be faulty.

3. Interconnecng

wiring faulty

With a serviceable relay ed and the fault sll evident, the interconnecng

wiring to the remote system may be

faulty. Carry out connuity checks, locate and recfy the defecve wiring

or replace.

4. Remote alarm system

faulty

Invesgate fault, repair or replace re-

mote system as necessary

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

Possible cause Remarks/rectification action

1. Gas service

failure set incorrectly

Check that the gas service sensor is

operang at the correct pressure

2. Faulty wiring Carry out resistance checks between

input and alarm panel (Table 9). Repair/

replace defecve wiring as necessary

3. Power supply PCB

faulty

Replace power supply PCB

4. Light display PCB

faulty

If all other checks have failed to recfy the fault, replace the light display PCB

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

Possible cause

Remarks/rectification action

1. Back up baery

faulty

Replace back up baery.

2. Main ribbon

connector faulty

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

3. Main ribbon

damaged

Check main ribbon cable. If

damaged replace light display PCB.

4. Power supply PCB

faulty

Replace power supply PCB.

5. Light display PCB

faulty

If all other checks have failed to recfy the fault, replace the light display PCB.

TABLE 7.8: A GAS SERVICE DISPLAY FLASHING (INCLUDING NORMAL) WITH SYSTEM ALARM

Notes…

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1. Check status of other panels which display that particular 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.

Possible cause

Remarks/rectification action

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 connuity 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 - ashing OK

Yellow - ashing Fault

Red

Incorrect soware

for PCB

O Mains power o

LED 2

RS-485

Transmit

Acvity

Green - Blinking RS-485 transming

Solid or o No acvity

LED 3

RS-485

Receiver

Acvity

Red - Blinking RS-485 receiving

Solid or o No acvity

LED 4

RS-232

Transmit

Acvity

Green - Blinking RS-232 transming

Solid or o No acvity

LED 5

RS-232

Receiver

Acvity

Red - Blinking RS-232 receiving

Solid or o No acvity

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 baery 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 connuity monitor (double) 6000150

Line connuity 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 scheduling

The 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

Description

Part

Number

Number 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 baery

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 connuity

monitor (double)

6000150 2 (4) 3 (6) 4 (8)

Line connuity

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)

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

Pneumatech Medical Gas Solutions Unit 18 Nuffield Way Abingdon Oxfordshire OX14 1RL UK