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3M Macurco CM-21A User Instructions

Carbon monoxide detector and controller

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Macurco
CM-21A Carbon Monoxide
Detector and Controller
User Instructions for 3M Macurco CM-21A - Low voltage, dual relay Carbon
Monoxide (CO) detector and controller
Important: Keep these User Instructions for reference
1

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Summary of Contents for 3M Macurco CM-21A

  • Page 1 Macurco CM-21A Carbon Monoxide ™ Detector and Controller User Instructions for 3M Macurco CM-21A - Low voltage, dual relay Carbon Monoxide (CO) detector and controller Important: Keep these User Instructions for reference...
  • Page 2: Specifications

    Carbon Monoxide Detector and Controller CM-21A Low maintenance, no periodic calibration needed SPDT fan relay switches 5 amps Automatic ventilation controller Dual relays: fan (SPDT) & alarm (N.O.) Lights reflect system status Micro computer controlled Long life (7 to 10 years) Solid state sensor •...
  • Page 3: Installation Notes

    Typical Installation in small garage Typical layout in Exhaust fan Power CM-21A Relay small garage 24 vac coil exhaust fan Controls (transformer & relay) transformer 24 vac CM-21A mount centrally Main fan power air inlet door, louver damper to remote 24vac alarm Typical multiple CM-21A installation INSTALLATION NOTES 1.
  • Page 4 GAS & SPECIALTY SENSORS CARBON MONOXIDE SENSORS KCO SERIES DESCRIPTION KCO Series Carbon Monoxide Sensors are available in analog or relay versions. The sensors are provided in heavy-duty steel enclosures, and the sensors use low- temperature components that are ideal for open parking garages in cold climates.
  • Page 5: Installation

    GAS & SPECIALTY SENSORS CARBON MONOXIDE SENSORS KCO SERIES INSTALLATION The KCO Series senses levels of CO for up to 5000 ft (465m ) of coverage if there is normal air circulation within the area. Mount on a wall or column approximately 5' (1.52m) above the floor. The sensors should not be mounted in corners where airflow could be restricted.