Multi-Signal Alarm Module ....................20 Computer Interface Relay Module..................21 Digital Display Module/Multi-Signal Alarm Module External Signal Relay..22 Pressure/Vacuum Switches ....................23 MEGA Network Wiring......................24 Typical Master Alarm Wiring Examples Bulk Oxygen System With Reserve..................25 Nitrous Oxide Manifold System Without Reserve............26 Duplex Medical Air Compressor ..................27 Nitrogen Manifold System Without Reserve..............28...
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Table of Contents Finish Installation Power Supply Module........................30 Digital Display Module........................31 Sensor Module ............................31 Multi-Signal Alarm Module ......................32 Computer Interface Relay Module....................32 Blank Module............................32 Trim Plate Alignment .........................33 Cover Plates (All Modules)......................33 Operation Start-Up and Checking ........................34 Set-Up Procedure Digital Display Module......................35 Multi-Signal Alarm Module....................38 Monitoring Mode...
Introduction Alarm Modular Components Power Supply Module Multi-Signal Alarm Module Features: Features: • Monitors up to six dry-contact • Provides electrical switch signals. power for digital display modules, • General fault relay activates on sensor modules, multi- any alarm fault condition. signal alarm modules, •...
Introduction Unpacking Definitions Factory Preassembled Alarm Panels Area Alarm Panel Alarm panels ordered under the APL, Alarm panel which monitors the medical gas APR, MPL and MPR part number series are and vacuum systems serving a specific area. preassembled at the factory. Dry-Contact 1.
Unpacking Field Assembled Alarm Panels Alarms ordered as separate modules are Sensor Module assembled on-site. Rough-in components: • Mounting box with dust cover 1. Carefully open the carton(s) and verify • (2) End panels contents. • Gas/vacuum service rough-in • (8) Screws, #6-20 x 1/4 Refer to diagrams on pages 49-51.
Rough-In Installation NOTE: Alarm Panel Rough-In Boxes The rubber grommet in the power supply mounting box must align with the rubber grommet in the alarm Refer to the building plans to determine mounting box. alarm locations and configurations. Alarm panels may be assembled into horizontal or 4.
Rough-In Installation Alarm Panel Rough-In Boxes (Cont.) 4. Connect the ten-wire ribbon cable to the plug on the adjacent interconnect board. NOTE: If the alarm panel has local sensor modules, they should be mounted directly above the corresponding digital display modules. Sensor 9.
Rough-In Installation Sensor Module Rough-In Boxes Gas/Vacuum Service Rough-In Remote sensor modules may be installed NOTE: as individual units or ganged in a panel Gas/vacuum service rough-in assemblies are gas specific. Be sure to install the gas/vacuum service rough-in in the configuration.
Rough-In Installation Mount Alarm Panel 1. Prepare a rough wall opening large enough to accommodate the rough-in assembly. The opening must have rigid horizontal members to support the rough- in assembly. Refer to Figure 6. 2. Insert the rough-in assembly into the wall opening and secure in place with fasteners suitable for the horizontal support materials.
Rough-In Installation Electrical Connections Top of alarm panel NOTE: Refer to Wiring Installation to determine the quantity and routing of alarm signal wires. 1. Connect the power supply conduit from the life safety branch of the building emergency Network wiring power system to the power supply mounting box using the knockout shown in Figure 7.
Wiring Installation IMPORTANT: General Requirements To reduce the possibility of electromagnetic interference adversely affecting alarm performance, • Per NFPA 99, medical gas alarms shall be follow these guidelines: powered by the life safety branch of the • Install alarm wiring in electrical metallic tubing (EMT) or other metallic conduit.
Wiring Installation Wiring Requirements and Routing • If pressure/vacuum data transmission is used, • Two conductors are required from each signal two conductors are required between the two switch to each master alarm. Refer to digital display modules. Refer to Schematic Schematics 3 and 6.
Wiring Schematics Typical wiring diagrams of master alarms for The following wiring schematics are provided. the following systems are provided: If you have any questions, please call Beacon Medical Products Technical Support at 1-800-676- Bulk Oxygen System with Reserve 1115.
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Digital Display Module, Multi-Signal Alarm Module, or Computer Interface Relay Module Interconnect Board 120 VAC 50/60 Hz Power Supply Module from building normal and (top view) emergency power sources RS-485 Line Computer Ground Interface Neutral Wiring terminals LINE GRD Alarm accept up to #12 Connection AWG wire...
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NOTE: Maintain correct sensor polarity. Sensor module Digital display module BLACK interconnect board Polarized connector Wiring terminals accept up to #14 AWG wire Ten-wire ribbon cable to adjacent module Twenty-wire ribbon cable to digital display module chassis Schematic 2. Sensor Module to Digital Display Module...
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NOTE 1: Remove only jumper wires from the terminals that are to have field wiring connected. Factory installed Leave all other jumper wires in place. jumper wires Digital display module Digital display module interconnect board interconnect board Wiring terminals accept up to #14 AWG wire Supply Status Signal Switches...
NOTE 1: Remove only jumper wires from the terminals Pressure/vacuum data transmission line that are to have field wiring connected. Leave all other jumper wires in place. Digital display module Digital display module Factory installed interconnect board interconnect board jumper wires at local alarm panel at remote alarm panel Wiring terminals accept up...
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NOTE: Two MEGA sensor modules are required to meet NFPA 99 requirements when using digital display modules as master alarms. MEGA Sensor Modules Digital display module Digital display module interconnect board interconnect board Ten-wire ribbon Ten-wire ribbon cable to adjacent...
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Computer interface relay module schematic Relay Outputs to Building Computer 15-Pin Connector Multi-signal alarm module Alarm Signal Inputs Supply Status interconnect board Terminal Block Signal Switches +5 VDC Common Signal ALARM Alarm 6 SIGNAL 1 Signal 6 Return SIGNAL RELAY Common Signal SIGNAL 2...
NOTE: The external signal relay on the digital display module or the multi-signal alarm module is a general fault relay. It activates upon any alarm condition on the module. Multi-signal alarm module Digital display module interconnect board interconnect board PRESSURE PRESSURE /VACUUM /VACUUM...
Nitrogen P/N 6-129021-01 1. Switch contacts shown in BLUE dynamic 175 psi line Multi-Signal NITROGEN pressure condition. ALARM PURPLE LINE PRESSURE LOW 2. Circuit No. 1: Set for open Alarm Module SIGNAL contacts 0-140 psi, closed RELAY BROWN RATING above 140 psi. GREEN SYSTEM NORMAL 2A 30V...
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SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE SILENCE Network interface cable P/N 6-129313-00 Power Supply Module (top view) Serial+ NOTE: Maintain correct network wiring polarity. Serial- RS-485 Computer Interface Personal computer with MEGA Network Monitor software Schematic 10. MEGA Network...
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RESERVE O2 VESSEL PRESSURE LOW RESERVE O2 VESSEL PRESSURE LOW Example 1. Bulk Oxygen System With Reserve...
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Example 2. Nitrous Oxide Manifold System Without Reserve...
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AIR COMPRESSOR #1 HIGH TEMPERATURE AIR COMPRESSOR #2 HIGH TEMPERATURE FILTER CHANGE REQUIRED AIR COMPRESSOR #1 HIGH TEMPERATURE AIR COMPRESSOR #2 HIGH TEMPERATURE FILTER CHANGE REQUIRED Example 3. Duplex Medical Air Compressor...
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Example 4. Nitrogen Manifold System Without Reserve...
Finish Installation Power Supply Module WARNING: S HOCK HAZARD Power supply Verify supply voltage is turned off at circuit breakers prior transformer to connection of power supply module. Serious injury or terminal block death can result from electrical shock. 1. Remove the dust cover from the mounting box.
Finish Installation Digital Display Module Twenty-wire 1. Remove the dust cover from the ribbon cable mounting box. 2. Connect the twenty-wire ribbon cable Digital display from the interconnect board to the digital module chassis display module chassis. Refer to Figure 3.
Finish Installation Sensor Module (Continued) Trim 5. Mark the location monitored by the plate sensor in the space provided on the sensor label. Refer to Figure 16. #6-32 x 1-1/2” 6. Install trim plate using (2) #6-32 x 1-1/2” screws screws.
Finish Installation Trim Plate Alignment 1. Align all trim plates on the alarm panel and tighten the screws. NOTE: Do not over-tighten screws. Cover Plates (All Modules) Slot 1. Remove the protective film from the front and back of the cover plate. 2.
Operation Start-Up and Checking 1. Turn on electrical power to the alarm panel. 2. Make the following observations: • The POWER ON light illuminates on the power supply module. System • Digital display modules and multi- status signal alarm modules warm-up for ten indicators seconds.
Operation Set-Up Procedure Digital Display Module LOW LED HIGH LED Liquid Crystal Digital display modules are shipped from Display (LCD) the factory with the following settings: Gas/Vacuum Alarm Set Points SETUP SILENCE Service High button button Pressure (50 psig) 40 psig 60 psig Nitrogen 140 psig...
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Operation Warning: Set-Up Procedure The following advanced setup options should only be performed by qualified personnel. Improperly set addresses can cause the alarm not to communicate with a Digital Display Module (Advanced) computer or building monitoring system. The network address uniquely identifies each digital display module to a personal computer or Johnson Controls Metasys®...
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Operation Set-Up Procedure Digital Display Module (Advanced) Warning: The following advanced setup options should only be performed by qualified personnel. Improperly set addresses can cause the alarm not to communicate with a computer or building monitoring system. Software Revision Viewing the firmware revision and network address: (Software 2.1 and lower) 1 Remove the cover plate.
Operation Set-Up Procedure Multi-Signal Alarm Module Green LEDs Changing signal options: Red LEDs 1. Remove the cover plate. 2. Press the SETUP button to enter setup mode. 3. The top green LED flashes briefly, then the red LED turns on. 4.
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Johnson Controls Metasys® system. An external computer is required to program network addresses on multi-signal alarm modules. Contact Beacon Medical Products for assistance. Technical Support: 1-800-676-1115 Viewing the software revision and Examples: network address: 1 Remove the cover plate.
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Operation Set-Up Procedure Multi-Signal Alarm Module (Advanced) Resetting the network address to zero: 1 Remove the cover plate. 2. Press the SETUP button and SILENCE buttons simultaneously. 3. All LEDs will illuminate for approximately 2 seconds. 4. A number of LEDs representing the first digit of the firmware revision will display for 1 second.
Operation Monitoring Mode Monitoring mode is the normal operating mode of the MEGA System. Digital Display Module System status indicators Digital display modules monitor pipeline Liquid Crystal pressure or vacuum and dry-contact switches. Display (LCD) • If all piping system functions are normal, the green NORMAL indicator is illuminated.
Operation Monitoring Mode Digital Display Module (Continued) Fault Codes (Continued): Sensor • A short circuit in the sensor module or Fault connecting wiring results in a flashing HIGH system status indicator, -F3- in the display and an audible alarm. User Assigned Alarm Signals: Short •...
Testing Periodic testing of the alarm system is NOTE: recommended. Digital display modules and multi- If any phase of the self-test fails to function, refer to the signal alarm modules have a built-in self-test troubleshooting guide. mode. NOTE: Notify appropriate personnel before testing alarm system. Digital Display Module Press and hold the SILENCE button for five seconds.
Testing Manual Testing NOTE: This testing requires partial disassembly of the Notify appropriate personnel before testing alarm system. individual modules. CAUTION: To prevent possible damage to alarm circuit boards from electrostatic discharge (ESD), always touch the grounded alarm mounting boxes (or other grounded metallic object) before handling alarm modules, interconnect circuit boards, or interconnection wiring.
Testing Manual Testing (Continued) Sensor Module • Remove the cover plate and the two screws holding the trim-plate to access the sensor module. • Check wiring for proper connections, field wiring wire nuts and polarized connection. • Check continuity of field wiring by disconnecting the polarized connector and jumping the pins on the field wiring portion to produce an audible alarm, high pressure indication and -F3- on the LCD of the digital display module serving the sensor module.
Troubleshooting Guide Symptom Possible Cause Corrective Action 1. No visual indicators a. AC power is not turned on. a. Check AC power source. illuminated on power supply b. Blown fuse. b. Replace fuse. and adjacent modules. c. AC power wiring not c.
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Troubleshooting Guide Symptom Possible Cause Corrective Action 5. Audible alarm does not a. Faulty display chassis or a. Use test mode of another module to sound when visual indicator interconnect board. verify audible alarm is functioning. is illuminated. If alarm sounds, replace alarm module chassis.
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Troubleshooting Guide Symptom Possible Cause Corrective Action 9. Digital display module LCD a. Faulty display chassis. a. Replace display chassis. is blank or erroneous characters are displayed while other indicators are functioning correctly. 10. Low pressure or vacuum No pressure or vacuum signal alarm with -F 1- display on to the display chassis as a result of:...
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Replacement Parts Power Supply Module Item Part Number Description 6-129278-00 120 VAC Power Supply Assembly 6-129316-00 240 VAC Power Supply Assembly* 6-490078-00 Mounting Box 6-425426-00 Mounting Plate 6-814669-00 Screw #6-20 x 1/4" Pan-Head Self-Tapping 6-231752-00 120 VAC Power Supply Chassis 6-231752-20 240 VAC Power Supply Chassis* 6-811635-00...
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Replacement Parts Sensor Module Item Part Number Description Item Part Number Description 6-129280-00 Oxygen 6-811610-00 Screw #6-32 x 3/4" Pan-Head (2 required) 6-129281-00 Nitrous Oxide 6-325160-00 Trim Plate 6-129282-00 6-811065-00 Screw #6-32 x 1-1/2" Flat-Head (2 required) 6-129283-00 Vacuum 6-435510-00 Cover plate 6-129284-00 Nitrogen...
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