Macurco 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)
Size: 3 1/8” x 5 1/8” x 1 ½” Power (standby/alarm @ 12V): ¼ Watt / ½ Watt
Shipping Weight (each): One pound Power (standby/alarm @ 24V): ½ Watt / 1 Watt
Alarm Relay: SPDT, 1 Amp, 60 VDC, 60 VA Operating Temperature Range: 32° to 120° F
Alarm Setting: Per UL 2034 Buzzer Rating: 85 dBA at 10 Feet
Color: White

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 mid­plate 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

OPERATING INSTRUCTIONS

When the detector is first powered, the status light will alternate between RED and GREEN as the unit performs a 2-1/2 minute warm-up cycle and
self-test procedure. The buzzer on the CM-S1 will cycle twice, emitting its characteristic 4-chirp tone. At the end of this 2-1/2 minute cycle, the
status light will turn GREEN to indicate normal operation and safe air. The alarm relay is not energized during the 2-1/2 minute warm-up cycle.

The CM-S1 continuously monitors the air. If the CM-S1 measures levels of CO greater than the danger level, the RED light will turn on, the Alarm
Relay will switch to actuate the alarm circuits in the control panel, and the buzzer on CM-S1 units will sound. The computer in the CM-S1 is
programmed to alarm if the danger levels of carbon monoxide are exceeded, which are time and concentration-related. The alarm points are: 70 ppm
of CO after 60 to 240 minutes, 150 ppm of CO after 10 to 50 minutes, and 400 ppm of CO after 4 to 15 minutes, in accordance with the provisions of
UL Standard 2034.

WHEN AN ALARM OCCURS (INSTALLER NOTE: It is recommended the following information below be posted near the control/alarm panel
or a copy provided to the customer.)

WARNING: Actuation of your CO alarm indicates the presence of carbon monoxide

!

(CO) which can KILL YOU. If alarm signal sounds:

1 Operate the reset/silence button;
2 Call your emergency services (____________________) [fire d ep artment or 911];
3 Immediately move to fresh air - outdoors or by an open door/window. DO A HEAD COUNT TO CHECK THAT ALL

PERSONS ARE ACCOUNTED FOR. DO NOT RE-ENTER PREMISES NOR MOVE AWAY FROM THE OPEN
DOOR/WINDOW UNTIL THE EMERGENCY SERVICES RESPONDERS HAVE ARRIVED, THE PREMISES HAS BEEN
AIRED OUT, AND THE ALARM REMAINS IN ITS NORMAL CONDITION.

4 After following steps 1 - 3, if your alarm reactivates within a 24-hour period, repeat steps 1 - 3 and call a qualified

technician (____________________) to investigate for sources of CO from fuel burning equipment and appliances,
and inspect for proper operation of this equipment. If problems are identified during this inspection, have the
equipment serviced immediately. Note: Any combustion equipment not inspected by the technician, consult the
manufacturers' instructions or contact the manufacturer directly for more info rmation about CO safety and the
equipment. Make sure that motor vehicles are not, and have not been operating in an attached g arag e o r ad jacent to
the residence.

CAUTION: This detector will only indicate the presence of carbon monoxide gas at the sensor. Carbon monoxide gas may be present in other areas.
Accommodation spaces should be well ventilated when household cleaning supplies or similar contaminants are used.

WARNING: This product is intended for use in ordinary indoor locations of family living units and office workspaces. The CM-S1 is not designed
to measure compliance with Occupational Safety and Health Administration (OSHA) commercial or industrial standards.

WARNING: Individuals with medical problems may consider using warning devices that provide audible and visual signals for carbon
monoxide concentrations below 30 ppm.

The following symptoms are related to CARBON MONOXIDE POISONING and should be discussed with ALL members of the household:

• Mild exposure: Slight headache, nausea, vomiting, fatigue (often described as “Flu-like” symptoms).

• Medium Exposure: Severe throbbing headache, drowsiness, confusion, fast heart rate.

• Extreme Exposure: Unconsciousness, convulsions, cardio respiratory failure, and death.

Many cases of reported CARBON MONOXIDE POISONING indicate that while victims are aware they are not well, they become so disoriented
they are unable to save themselves by either exiting the building or calling for assistance. Young children and household pets may be the first
affected.

NOTICE: Transient CO situations can occur:

1.) Excessive spillage or reverse venting of fuel burning appliances caused by outdoor ambient conditions, such as:
a. Wind direction and/or velocity, including high gusts of wind. Heavy air in the vent pipes (cold/humid air with extended

periods between cycles).

b. Negative pressure differential resulting from the use of exhaust fans.
c. Simultaneous operation of several fuel-burning appliances competing for limited internal air.
d. Vent pipe connections vibrating loose from clothes dryers, furnaces, or water heaters.
e. Obstruction in or unconventional vent pipe designs, which can amplify the above situations.

2.) Extended operation of unvented fuel burning devices (range, oven, fireplace, etc.).

3.) Temperature inversions, which can trap, exhaust gasses near the ground.

4.) Car idling in an open or closed attached garage, or near a home.

The CM-S1 will automatically reset once the air clears.

Document #679-800-001 Page 2 of 4 Rev. 1.1, Jan 9, 2006