Macurco CM-6 Specsheet
Macurco™ Carbon Monoxide Detector
CM-6
Detector, Controller and Transducer
Carbon Monoxide Detection and Control
The Macurco CM-6 is a low voltage, dual relay Carbon Monoxide (CO) detector, controller and transducer.
The CM-6 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection
system used to measure the concentration of CO and provide feedback and automatic exhaust fan or valve
control to help reduce CO concentrations in parking garages, maintenance facilities or other commercial
applications. The CM-6 is a low level meter capable of displaying from 0-200 ppm of Carbon monoxide.
Selectable options include:
• Fan relay actuation: selectable at 15, 25, 35 (default), 50 or 100 ppm CO
• Output: Fan relay, Alarm relay and 4-20mA current loop
• Controls: Digital display (0-200ppm), buzzer, fan delay, fan minimum runtime
Installation
• Mounts on a standard 4” x 4” electrical box
• 5 A SPDT fan relay controls valves, louvers or exhaust fans
• 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels
• 4-20mA current loop - compatible with the Macurco DVP-120 Control Panel
• Factory calibrated
Other Features
• Supervised system design: detector problem will cause the fan & alarm relay to activate
• Optional calibration kit allows the CM-6 to be field tested and calibrated
• ETL Listed to UL 61010-1, CAN/CSA C22.2 No 61010-1, LADBS Approved
Manufactured by Aerionics, Inc. Sioux Falls, SD – Phone: 1-877-367-7891 – Email: info@aerionicsinc.com – www.macurco.com
CM-6 Specifications
• Power: 3 W (max) from 12 to 24 VAC or 12 to 32 VDC
• Current @ 24 VDC: 75 mA in alarm, 50 mA fan relay on and 23 mA stand by
• Shipping Weight: 1 pound (0.45 kg)
• Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 10.2 X 5.4 cm)
• Color: Dark gray
• Connections: plugs/terminals
• Mounting box: (not included) 4x4 electric
• Fan relay: 5 A, 240 VAC, pilot duty, SPDT, latching or non-latching
• Fan relay actuation: selectable at OFF, 15 ppm, 25 ppm,
35 ppm (default), 50 ppm or 100 ppm CO
• Fan Delay Settings of 0, 1, 3 (default), 5 and 10 minutes
• Fan Minimum Runtime settings are OFF (default), 3, 5, 10 or 15 minutes
• Alarm relay: 0.5A 120 V, 60 VA
• Alarm relay actuation: selectable N.O. default or N.C.
CM-6 Rear View
• Alarm relay settings: OFF, 50 ppm, 100 ppm, 150 ppm and 200 ppm (default)
• Current Loop, 4-20 mA for 0-200 ppm CO
• Operating Environment: 0°F to 125° F (-18°C to 52°C),10 to 90% RH
Location
The unit typically covers about 5,000 sq.ft. (465 square meters) in a parking garage or similar application and
900 sq.ft. (84 square meters) in a residential or office type application. The coverage depends on air movement
within the room or facility. Do not mount the CM-6 in a corner. The detector may be installed on either a ceiling or
a wall. If installed on a peaked, gabled, or sloped ceiling, it should be located about 3 feet (1 meter) from the
highest point. Normally, the unit is mounted about 5 feet (1.5m) above the floor (normal breathing zone), in a
central area where air movement is generally good. Additional detectors may be needed near any areas where
people work or where the air is stagnant.
TYPICAL CONNECTION OF CM-6
Alarm Control Panel
Auxiliary functions
such as dialers.
N.O. or N.C.
initiating circuit
12 or 24 V power
battery backed up
+
-
4-20 mA
Loop
N.C.
POWER
12 or 24 V
N.O.
CM-6
ALARM
RELAY
SPDT fan
RELAY
TYPICAL COVERAGE 5,000 SQUARE FEET
Exhaust
Fan
coil
RELAY
12 or
24 V
coil
Made in the USA
A
B
N.O.
COM
N.C.
AC or DC
No Polarity
Made in the U.S.A. with US and imported materials
© Aerionics 2014. All rights reserved.
Macurco is a trademark of Aerionics, Inc.
MAIN FAN
POWER
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