AMC-1AREF Series

36 Pages·2013·0.38 MB·English

AMC-1AREF
Series

Refrigerant Gas Monitor

INSTRUCTIONS

Installation and Operation of the
AMC-1AREF Series Refrigerant Gas Monitor

IMPORTANT:
Please read these installation and operating instructions completely
and carefully before starting

Filename: 3314405A.doc Copyright © August, 2011, AMC

The Armstrong Monitoring Corporation
215 Colonnade Road South, Ottawa, Ontario, Canada K2E 7K3
Tel: [phone] • Fax: [phone] • Canada & U.S. Toll Free: 1-800-465-5777
E-mail: [email protected] • Internet: www.armstrongmonitoring.com
Gas Monitor AMC-1AREF Series
Gas Monitor 1AREF Series

TABLE OF CONTENTS
Section Title Page

1 WARRANTY.........................................................................................................................iv
1.1 LIABILITY......................................................................................................................iv
1.2 MODIFICATIONS AND SUBSTITUTIONS....................................................................iv
1.3 PRODUCT RETURN.....................................................................................................iv
2 PRODUCT INFORMATION...................................................................................................v
3 PRODUCT DESCRIPTION...................................................................................................1
3.1 GENERAL DESCRIPTION.............................................................................................1
3.1.1 MONITOR FEATURES...........................................................................................1
4 INSTALLATION....................................................................................................................4
4.1 MOUNTING INSTRUCTIONS........................................................................................4
4.1.1 MONITOR MOUNTING...........................................................................................4
4.1.2 SENSOR/TRANSMITTER MOUNTING..................................................................5
4.2 WIRING..........................................................................................................................5
4.2.1 MONITOR WIRING.................................................................................................5
4.2.2 AMC-RAC WIRING.................................................................................................7
4.2.2.1 AMC-RAC to AMC-1AREF wiring....................................................................7
4.2.2.2 AMC-RAC to AMC-RAM-4 wiring.....................................................................7
4.2.2.3 AMC-RAC to Emergency Pull Station (Optional)...........................................10
4.2.3 TRANSMITTER CABLE SELECTION...................................................................11
4.2.3.1 Transmitter and Building Automation System................................................11
4.2.3.1.1 2-wire Transmitter Wiring............................................................................12
4.2.3.1.2 3-wire Transmitter Wiring............................................................................13
4.2.3.1.3 Building Automation Wiring.........................................................................14
4.3 DIP SWITCH PROGRAMMING ...................................................................................17
4.3.1 DSI INTERFACE CONFIGURATION....................................................................19
4.4 ALARM RELAY PROGRAMMING ...............................................................................21
4.5 AUDIO ALARMS..........................................................................................................21
5 OPERATION AND CALIBRATION.....................................................................................22
5.1 POWER-ON DELAY.....................................................................................................22
5.2 TEST SWITCH FUNCTION..........................................................................................22
5.3 AUDIO ACKNOWLEDGE FUNCTION (Optional).........................................................22
5.4 ALARM/WARNING RELAY ACTIVATION DELAYS....................................................22
5.5 RELAY OUTPUTS........................................................................................................23
5.6 GAS CONCENTRATION DISPLAY.............................................................................23
5.7 CALIBRATION AND VERIFICATION...........................................................................23
5.7.1 TRIP THRESHOLD ADJUSTMENT......................................................................24
5.7.1.1 Equipment Required......................................................................................25
5.7.1.2 Trip Threshold Adjustment.............................................................................25
5.7.2 2-WIRE AND 3-WIRE TRANSMITTERS...............................................................26
5.7.3 GAS CONCENTRATION DISPLAY SETUP.........................................................26
6 PREVENTIVE MAINTENANCE..........................................................................................28
6.1 GENERAL....................................................................................................................28
6.2 VERIFICATION OF OPERATION................................................................................28
6.3 SENSOR REPLACEMENT ..........................................................................................28
7 INSTALLATION TIPS AND TRICKS..................................................................................29

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Gas Monitor 1AREF Series

FIGURES AND TABLES

Table 1: MONITOR FEATURES..............................................................................................1
Figure 1: FRONT COVER.........................................................................................................3
Figure 2: INTERNAL FEATURES.............................................................................................3
Figure 3: LOCATION OF MOUNTING HOLES.........................................................................4
Figure 4: LOCATION OF POWER SUPPLY CONNECTIONS.................................................6
Figure 5: RELAY CONTACT ARRANGEMENT RELAY...........................................................6
Figure 6: AMC-1AREF CONNECTION TO AMC-RAM-4..........................................................8
Table 2: AMC-1AREF WIRING TO EXTERNAL AMC-RAM-4 (2 DISPLAY)...........................9
Table 3: AMC-1AREF WIRING TO INTERNAL AMC-RAM-4 (2 DISPLAY)............................9
Figure 7: AMC-1AREF CONNECTION TO PULL STATION....................................................10
Table 4: AMC-1AREF WIRING TO PULL STATION...............................................................10
Figure 8: SIGNAL INPUT/ OUTPUT TERMINAL BLOCK.........................................................11
Figure 9: 1AREF WIRING TO 2 WIRE TRANSMITTER...........................................................12
Figure 10: 1AREF WIRING TO 3 WIRE TRANSMITTER...........................................................13
Figure 11: .1AREF WIRING TO RAM-4 DISPLAY AND BAS…………......................................14
Table 5: 1AREF WIRING TO RAM-4 DISPLAY AND BAS……………...................................14
Figure 12: AMC-1AREF WIRING TO BAS……………...……...………..…..................................15
Table 6: AMC-1AREF WIRING TO BAS……………………….………………...........................16
Figure 13: GRAPH: WIRING LOOPS 1AREF, RAM-4 DISPLAYS AND BAS….........................16
Table 7: DIP SWITCH PROGRAMMING MONITOR…............................................................17
Figure 14: DETAILED DSI BOARD………………....………………..............................................19
Table 8: DIP-SWITCH PROGRAMMING CHART....................................................................19
Table 9: DSI BOARD TEST POINTS……………………….......................................................20
Table 10: WARNING AND ALARM RELAY ACTIVE STATE.....................................................21
Table 11: AUDIO ALARM OPERATION.....................................................................................21
Table 12: TEST POINTS AND TRIMPOTS ALLOCATION....................................................... 24
Figure 15: GAS MONITOR AMC-1AREF TEST POINTS AND TRIMPOTS...............................24
Table 13: TRIP THRESHOLD ADJUSTMENT...........................................................................25
Table 14: DISPLAY DIP-SWITCH SETTINGS...........................................................................27
Figure 16: BACKVIEW OF DISPLAY..........................................................................................27

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Gas Monitor 1AREF Series

iii
Gas Monitor 1AREF Series

1 WARRANTY
The AMC-1AREF Series Monitor is warranted against defects in material and workmanship for a
period of two (2) years from date of shipment. During the warranty period, The Armstrong
Monitoring Corporation will repair or replace components that prove to be defective in the
opinion of AMC. We are not liable for auxiliary interfaced equipment, or consequential damage.
This warranty shall not apply to any product, which has been modified in any way, which has
been repaired by any other party other than a qualified technician or authorized AMC
representative, or when such failure is due to misuse or conditions of use.

1.1 LIABILITY
All AMC products must be installed and maintained according to instructions. Only qualified
technicians should install and maintain the equipment. AMC shall have no liability arising from
auxiliary interfaced equipment, for consequential damage, or the installation and operation of
this equipment. AMC shall have no liability for labour or freight costs, or any other costs or
charges in excess of the amount of the invoice for the products.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
AND SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE
DESCRIPTION ON THE FACE THEREOF.

1.2 MODIFICATIONS AND SUBSTITUTIONS
Due to an ongoing development program, AMC reserves the right to substitute components and
change specifications at any time without incurring any obligations.

1.3 PRODUCT RETURN
All products returned for warranty service will be by prepaid freight and they will only be
accepted with an R.M.A. number issued by AMC. All products returned to the client will be
freight collect.

Service Department contact information:
Web: www.armstrongmonitoring.com
North America toll free: 1 [phone]

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Gas Monitor 1AREF Series

2 PRODUCT INFORMATION
Monitor Part Number. …………………..……………….. AMC-1AREF
Monitor Serial Number. ………………..………………..
Monitor Warranty Period. ……………………………..… 2 years
DSI Part Number. …………………..…..………………..
DSI Serial Number. ……………………..………………..
DSI Warranty Period. ………………..………………..… 2 years
Power Supply Requirement. ………………….……..… 120 VAC, 60 Hz, 54 VA
Operating Temperature.…….………………….……..… 0°C to +40°C (32°F to +104°F)
Operating Pressure..…………….…………….……..… Ambient atmospheric pressure
Relative Humidity..…………….…………….……..… 0 – 90% non-condensing.

Signal Input Alarm Trip Points Full
Part No. Serial No. Type of Gas
Configuration Warning Alarm Scale
Transmitter Ch1
Transmitter Ch2

TORQUE SPECIFICATIONS:

POWER SUPPLY:
Neutral terminal screw ……………………………………………………………… 7 pound-inches.
Hot terminal screw …………………………………………………………...……... 7 pound-inches.
Ground Lug screw. …………………………………………………………………. 15 pound-inches.
RELAY:
Relay socket terminal screws ……………………………………………………… 7 pound-inches.

Note:
All Armstrong Monitoring systems must be installed and maintained according to
instructions, to ensure proper operation. Only qualified technicians should install and
maintain the equipment.
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AMC-1AREF Series Refrigerant Monitor

3 PRODUCT DESCRIPTION
3.1 GENERAL DESCRIPTION
The AMC-1AREF series gas monitoring system includes the AMC-DSI sensor interface board
and a Remote Alarm Controller, which has connectivity for the AMC-RAM-4 remote alarm
modules. The DSI board permits up to two 4-20 mA sensor/transmitters to be connected. The
monitor comes with the following features, see Figures 1 and 2.

3.1.1 MONITOR FEATURES
1. RUN/FAULT/OFF INDICATOR: A green LED for each channel.
RUN: LED on
FAULT: LED flashing
OFF: LED off

2. WARNING INDICATOR: Warning levels of gas are indicated by a yellow LED for
each channel. Warning concentrations are indicated in
Section 2

3. ALARM INDICATOR: Alarm levels of gas are indicated by a red LED for each
channel. Alarm concentrations are indicated in Section 2

4. GAS CONCENTRATION A visual indication of the gas concentration for channel 1
DISPLAYS(OPTIONAL): and 2

5. POWER TERMINAL BLOCK: For line voltage connections of 120 VAC, 60 Hz

6. TRANSFORMER: A step down transformer powers the internal circuitry
and remote sensor at low voltages. Located underneath
the PCB

7. INTERNAL WIRING HEADER: Provides wiring connection points to relays, buzzer and
the AMC-RAC

8. AUDIO ALARM INDICATOR: The buzzer will activate for Alarm, Warning
(configurable) and Fault conditions, with a distinct tone
for each one

9. RELAY SETUP JUMPERS Used to independently configure the Warning/Ch1 and
Alarm/Ch2 relays as Normally Energized or Non-
Energized

10. TEST SWITCH: The test switch is provided to electronically simulate
alarms in order to test audio and relay functions
11. CHANNEL 1 ADJUSTMENT: Signal, Alarm and Warning for channel 1

12. CHANNEL 2 ADJUSTMENT: Signal, Alarm and Warning for channel 2
1
AMC-1AREF Series Refrigerant Monitor

13. PROGRAMMING DIP Allows user to configure the alarm delay and timer
SWITCHES: circuits, audio alarm activation, sensor mode selection,
fault threshold, and acknowledge switch function
Switches are located under the DSI board. Do not
unplug DSI board under power.
14. RELAYS: 3 DPDT Relays, 1 for Alarm state, 1 for Warning state
and 1 dedicated to ventilation.

15. DSI BOARD : DSI board allows 4-20mA signal input and a 4-20mA
signal output; the signal output. The AMC-RAC is
connected to the AMC-1AREF through the DSI board
16. SIGNAL INPUT TERMINAL Allows connection to transmitter input and output
BLOCK: Channel 1: Pins 1-6 ----J6
J5 and J6 Channel 2: Pins 1-6 ----J5
1 - Negative (DO NOT USE)
2 - 4-20mA out (DO NOT USE)
3 - Power
1 2 3 4 5 6
4 - 4-20mA in
5 - Chassis ground
6 - Signal ground
17. AMC-RAC The Remote Alarm Controller, factory installed for
communication between the AMC-DSI and RAM-4s. The
RAC includes 3 LEDs; Green –power, Yellow -ventilation
on, and Red- shutdown

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AMC-1AREF Series Refrigerant Monitor

3. ALARM INDICATOR
2. WARNING
INDICATOR
1. RUN/FAULT/OFF
INDICATOR
4. GAS CONCENTRATION
DISPLAYS

FIGURE 1: Gas Monitor 1AREF, Front Cover.

9. RELAY SETUP 13. DPRIPO SGWRITACMHMESING 15. DSI UNIT
JUMPERS
10. TEST SWITCH
TP6
TP5 RV6 11. CHANNEL 1 ADJUSTMENT
RV5
RV4
8. AUDIO ALARM
GND SeTnPs4or 1 INDICATOR
TP22
6. TRANSFORMER
7. INTERNAL WIRING TP3 (UNDER PCB)
HEADER TP2 RV3 12. CHANNEL 2 ADJUSTMENT
SenTsPo1r 2 RV2 (OPTIONAL CHANNEL)
RV1
CH.1 CH.2
5. PBLOOWCEKR TERMINAL 678//NCCNOOM354 687//NCCNOOM354 678//NCCNOOM354 WWW.ARMSTRONGMONITORING.COM -D1DVDDD+1D311J95014S1LLJHSSD6D316N1RRRFA132DA-B7NRPLLSSJDO1BDJ421W78JEB2ASSEMBLEDD4RIN CANADADJBSD23I-JASSY: 3315301BBB4RSN:D 1176.. TRSEIEGRMMNOAINTLEA I NLA PBLAULOTR MCK CONTROLLER
1 1 J1
J3
2ILCO1 2ILCO1 2ILCO1 3ULWPRR::FSAHND1N1 TO RAMS
14. RELAYS

FIGURE 2: Internal Features of the Gas Monitor 1AREF.
3