Macurco Carbon Monoxide Alarm CM S1 User Manual

MACURCO GAS DETECTORS  
CM-S1 INSTALLATION AND  
OPERATION INSTRUCTIONS  
GENERAL INFORMATION  
The CM-S1 is a low voltage (12-24 VDC) all electronic detector of Carbon Monoxide (CO). The CM–S1 is designed for connection to UL Listed  
alarm control panels (Fire or Fire/Burglar or Critical Process Management Equipment). NOTE: Any time the words “Control Panel” or “Alarm  
Panel” or “Alarm Control Panel” are used in these instructions, what is meant is a UL Listed Fire or Fire/Burglar or Critical Process Management  
Equipment. Alarm control panels that work on 12 or 24 VDC can provide battery backup to the CM-S1 detectors. This carbon monoxide detector is  
designed to detect CO gas from ANY source of combustion. It is NOT designed to detect smoke, fire or any other gas.  
LOCATION  
There are two usual sources of CO in homes -- defective heat sources (furnaces or wood burning stoves) and automobiles running in adjoining  
garages. The CM-S1 can provide protection from these sources, as well as any other sources of CO.  
For best protection, mount a CM-S1 in the hallway near each bedroom area. In addition, another CM-S1 may be mounted just inside the door from  
the adjoining garage. Consider placing another detector in a bedroom that is adjacent to a furnace room.  
Do NOT mount the unit in the garage. Do NOT mount the CM-S1 where the normal ambient temperature is below 40° F (4.4° C) or exceeds 100° F  
(37.8° C), or within 5 feet (1.5 meters) of a cooking appliance.  
SPECIFICATIONS  
Voltage: 12-24 VDC  
Current (standby/alarm @ 12-24V): 20mA/40mA (250 mA peak for 14ms/sec)  
Power (standby/alarm @ 12V): ¼ Watt / ½ Watt  
Power (standby/alarm @ 24V): ½ Watt / 1 Watt  
Operating Temperature Range: 32° to 120° F  
Size: 3 1/8” x 5 1/8” x 1 ½”  
Shipping Weight (each): One pound  
Alarm Relay: SPDT, 1 Amp, 60 VDC, 60 VA  
Alarm Setting: Per UL 2034  
Color: White  
Buzzer Rating: 85 dBA at 10 Feet  
INSTALLATION  
See wiring diagram on page 4 for information on connections of the CM-S1. Macurco recommends a minimum of 22 AWG wire for runs up to 200  
ft., and 18 AWG wire for longer runs.  
Mount the CM-S1 at the height that people breath: 4 to 5 feet (1.2 to 1.5 meters) above the floor. The unit can be placed vertically or horizontally on  
a wall, so the information on the front of the CM-S1 can be read in a normal manner. The word UP and a directional arrow on the internal cover  
indicate the correct mounting orientation of the detector.  
A rear housing enclosure is included with the CM-S1 faceplate. This enclosure configuration allows the unit to mount-flush on a wall. Wiring is  
routed through an access area on the base of the rear housing. A thin mid-plate enclosure component is also supplied with the CM-S1. This mid-  
plate component is used to mount the CM-S1 on a 2 x 4 single-gang, or “handy” electrical box, provided by the installer. The CM-S1’s faceplate  
component (with the detector attached) is then mounted on the mid-plate component. Electrical connections to the CM-S1 are made via the supplied  
five-conductor pigtail cable. The pigtail cable is first connected to the control panel wiring by means of wire nuts (refer to wiring diagram on page 4  
for proper pigtail wiring). The pigtail cable’s connector then snaps into the mating connector on the back of the CM-S1 PCA, allowing easy  
installation and replacement of it. For proper detector operation, ensure that the CM-S1 is connected to a continuous source of power (not controlled  
by a wall switch). The CM-S1 power consumption figures represent worst-case conditions and will vary as the applied DC voltage varies.  
The alarm relay of the CM-S1 is a dry contact and rated at 1 Amp, 60 VDC, 60 VA. It is not suitable for fan control use. When connecting the units  
to remote buzzers or other devices (all buzzers or "other devices" must be UL approved), make sure that the load does not exceed the relay’s rating.  
External buzzers must be capable of generating a sound output greater than 85 dBA at 10 ft.  
Document #679-800-001  
Page 1 of 4  
Rev. 1.1, Jan 9, 2006  
 
RESET/SILENCE SWITCH  
The switch on the front of the CM-S1 labeled “TEST/RESET,” performs three functions.  
1.) A short press of switch, less than 5 seconds long, will place the unit into self test mode with no alarm relay activation. The status light will turn  
red for 5 seconds and then it will alternate slowly between green and amber while the self-test executes. The controlling software simulates a 3000  
ppm CO environment and causes the unit to alarm after approximately one minute has elapsed. When this happens, the status light turns red and the  
buzzer will sound two complete alarm cycles. The unit will then return to normal operation.  
2.) A long press of switch, about 6 seconds long, will place the unit into self-test mode with alarm relay activation. Pressing and holding the switch  
will cause the status light to turn red for 5 seconds and then switch to solid amber. The alarm relay will then be activated and the switch can be  
released. After about 5 seconds, the alarm relay will turn off and the status light will alternate slowly between green and amber while the self test  
executes The controlling software simulates a 3000 ppm CO environment and causes the unit to alarm after approximately one minute has elapsed.  
When this happens, the status light turns red and the buzzer will sound two complete alarm cycles. The unit will then return to normal operation.  
3.) If the CM-S1 is in an alarm condition due to the detection of carbon monoxide, one push of the switch will cause the alarm buzzer to mute for  
five minutes. After the five-minute period, if CO is still present, the status light will again switch to RED, the alarm relay will close and the buzzer  
will sound.  
TROUBLE INDICATOR  
The CM-S1’s status LED is normally illuminated with a green color. To indicate a “trouble” condition, the CM-S1 status LED will flash  
AMBER and the CM-S1 buzzer will emit a short "chirp" every 50 seconds. See ERRORS below. The CM-S1 computer continuously monitors  
various detector parameters. Failure of the CM-S1’s internal power supply, or a lack of power to the detector will result in the status light  
remaining OFF (not illuminated). In this case, the most common cause of detector trouble would be a break in the wiring between the control  
panel and the CM-S1. The CM-S1 does NOT provide a trouble signal to the alarm panel.  
ERRORS  
The computer in the CM-S1 continuously monitors various operating parameters. If a problem is found, the unit will switch to Trouble mode. See  
TROUBLE INDICATOR above. To reset the unit for normal operation, press the TEST/RESET switch, or remove power to the unit, wait a few  
seconds, then re-apply unit power. If this problem persists, your detector requires repair; contact the alarm panel installer or Macurco Tech Support  
for advice. If repair is required, return the unit to manufacturer to comply with warranty.  
MAINTENANCE  
The CM-S1 should be tested monthly by pushing the TEST/RESET switch; see TEST/RESET switch, above. At the same time, the CM-S1 should be  
cleaned using the soft brush attachment of your vacuum cleaner. The CM-S1 should be tested after cleaning to ensure the unit is operating normally.  
There are no field calibration procedures for this unit.  
SENSOR POISONS  
The gas sensor in the detector is designed with extreme sensitivity to the environment. As a result, the CO sensor may be damaged if it is exposed to  
a direct spray from aerosols such as paints, silicone vapors, etc., or to a high density of corrosive gases such as hydrogen sulfide or sulfur dioxide for  
an extended period of time. The sensor may react to chemicals such as ammoniated cleaning agents, volatile solvents and hydrogen gas. In sufficient  
concentration, these chemicals may cause a false alarm.  
LIMITED WARRANTY  
Aerion Technologies Inc. (ATI), manufacturer of Macurco products, warrants the CM-S1 gas detector will be free from defective materials and  
workmanship for a period of five (5) years from date of manufacture (stamped on the unit), provided it is maintained and used in accordance with  
ATI’s instructions and/or recommendations. If any component becomes defective during the warranty period, it will be replaced or repaired free of  
charge, if the unit is returned in accordance with the instructions below. This warranty does not apply to units that have been altered or had repair  
attempted, or that have been subjected to abuse, accidental or otherwise. The above warranty is in lieu of all other express warranties, obligations or  
liabilities. THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO A  
PERIOD OF FINE (5) YEARS FROM THE PURCHASE DATE. ATI shall not be liable for any incidental or consequential damages for breach of  
this or any other warranty, express or implied, arising out of or related to the use of said gas detector. Manufacturer or its agent's liability shall be  
limited to replacement or repair as set forth above. Buyer’s sole and exclusive remedies are return of the goods and repayment of the price, or repair  
and replacement of non-conforming goods or parts. (The Uniform Commercial Code applicable in the State of Colorado shall govern.)  
RETURN INSTRUCTIONS  
Call (303) 781-4062 for a Return Authorization number. After receiving a Return Authorization number, carefully pack the detector with a written  
description of the nature of the return. Send the unit to the following address: Aerion Technologies Inc., Attn: Macurco Repair RA#_______,  
6555 S. Kenton St., Ste. 304, Centennial, CO 80111.  
Document #679-800-001  
Page 3 of 4  
Rev. 1.1, Jan 9, 2006  
 
WIRING DIAGRAMS  
ENSURE POWER IS OFF WHEN CONNECTING THE PIGTAIL CABLE TO THE CM-S1  
!
TYPICAL CONNECTION OF TWO CM-S1's TO AN ALARM CONTROL PANEL  
UL Listed Alarm Control Panel  
CM-S1  
SPDT  
Alarm  
relay  
CM-S1  
SPDT  
Alarm  
relay  
N.O. initiating  
circuit  
Battery-backed 12 or 24  
VDC Power Supply. Fuse  
or current limit at 0.5 A for  
each CM-S1  
N.O. VIO  
N.C. BLU  
COM YEL  
BLK  
N.O. VIO  
N.C. BLU  
COM YEL  
BLK  
GND  
12/24V  
GND  
12/24V  
RED  
RED  
12/24V GND  
1. The CM-S1 is for use with UL Listed Alarm Control Panels (Fire or Fire/Burglar type or Critical Process Management Equipment)  
that have 12 to 24 VDC alarm initiating circuits.  
2. The Alarm Control Panel (Fire or Fire/Burglar type or Critical Process Management Equipment) must be dedicated to CO detection or  
have alarm devices that provide a distinctive alarm for carbon monoxide detection. Do not connect the CM-S1 to Fire Alarm Circuits.  
3. The CM-S1 is intended for installation in buildings in non-hazardous locations such as residences, retail stores, office buildings and  
institutional buildings.  
4. The CM-S1 is NOT intended for use in industrial applications such as refineries, chemical plants, etc. The CM-S1 is NOT intended  
for use in parking garages, as the controller for exhaust systems.  
5. LOCATION: Place the unit at a level where people breathe: about 5 feet (1.5 meters) above the floor. Mount the CM-S1 in a vertical  
position on a wall or column. Do NOT mount the CM-S1 in a corner.  
6. SPACING: Use the same spacing as for smoke detectors – 30 foot (9 meters) centers, 900 sq. feet (83 sq. meters) per detector.  
7. INSTALLATION: See page 1.  
8. The alarm control panel zone inputs must be terminated with end of line resistors (E.O.L.R.), which are provided with the panel.  
9. When using the CM-S1 with normally closed initiating circuits, use the "N.C." and "COM" alarm relay connections.  
The CM-S1 has not been evaluated as a stand-alone unit by U.L.  
CM-S1 CONTROLLING A REMOTE ALARM  
UL  
CM-S1  
SPDT  
Alarm  
relay  
Alarm Relay: SPDT,  
1.0 Amps., 60VDC, 60 VA  
dry contacts, no polarity  
CM-S1  
SPDT  
Alarm  
relay  
LISTED  
12VDC  
ALARM  
N.O. VIO  
N.C. BLU  
COM YEL  
BLK  
N.O. VIO  
N.C. BLU  
COM YEL  
BLK  
UL Listed Class 2  
Power Source:  
12-24 VDC, 1 VA  
GND  
12/24V  
GND  
12/24V  
RED  
RED  
UL LISTED  
12VDC  
POWER SUPPLY  
POWER  
Document #679-800-001  
Page 4 of 4  
Rev. 1.1, Jan 9, 2006  
 

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