Installation And Operating Instructions; Location; General Wiring Information; Mains Power Connection - Macurco CD-12H Mode D'emploi

3 INSTALLATION AND OPERATING INSTRUCTIONS

The following instructions are intended to serve as a general guideline for the use of the Macurco CD-12H / CD-12MC Carbon Dioxide
Detector. It is not to be considered all-inclusive, nor is it intended to replace the policy and procedures for each facility. If you have any
doubts about the applicability of the equipment to your situation, consult an industrial hygienist or call Technical Support at 844-325-
3050.
This detector helps monitor the presence and concentration level of a certain specified airborne gas. Misuse may produce an inaccurate
reading, which means that higher levels of the gas being monitored may be present and could result in overexposure and cause serious
injury or death. For proper use, see supervisor or User Instructions, or call Technical Support at 844-325-3050.

3.1 Location

Mounting height will be dependent on the application. For applications with CO
floor. For indoor air quality mount detector at breathing level, about 5 feet (1.5 meters) above the floor on a wall or column in a central
area where air movement is generally good. The unit, on average, can cover about 5,000 sq. ft. (465 sq. meters). The coverage depends
on air movement within the room or facility. Extra detectors may be needed near any areas where people work or where the air is
stagnant. The CD-12"x" mounts on a 4x4 electrical box supplied by the contractor. Do not install the CD-12"x" inside another box unless
it has good air flow through it. Do NOT mount the CD-12"x" where the normal ambient temperature is below 32°F or exceeds 122°F
(below 0°C or above 50°C).
High voltage terminals (120/240 VAC) are located within this detector, presenting a hazard to service technicians. Only qualified
technicians should open the detector case and service the internal circuits. Ensure power is removed from the detector relays prior to
servicing the unit. Failure to do so may result in serious injury or death.

3.2 General Wiring Information

With the exception of the safety ground, all field wiring is completed via modular connectors (provided). After wiring, simply plug the
modular connectors into the matching connectors on the back side of the detector.

3.3 Mains Power Connection

Mains connections should be done in accordance with National and Local Electrical Codes. Only qualified personnel should connect
Mains power to any device. Macurco recommends a minimum wire size of AWG18 and the wire insulator must be rated for 140°F (60°C)
service. The modular connector will accept wire from 12 to 24 AWG. The safety ground wire should be secured to the ground screw of
the metal electrical box. Tighten the screw and make sure the wire is snug. Ensure that the wire cannot be pulled out from under the
screw. The Line (L) and Neutral (N) wires should be stripped 1/4 in. (6.5 mm), insert the wire into the "L" and "N" wire positions of the
modular Fan/Power connector and tighten the screw clamp. Ensure that the wire cannot be easily pulled from the connector. Plug the
modular connection into the Fan/Power connection and ensure that it latches into the header properly.

3.4 Fan Relay Connection

All the SPDT Fan relay terminals are available at the Fan/Power modular connector. Each fan relay terminal normally open, common
and normally closed (NO, COM, and NC) can accommodate a wire size 12 to 24 AWG. To install the wiring for the relays, disconnect the
connectors from the header. Strip the insulation off each wire back approximately ¼ inch (6.5 mm), insert the bare wire into the terminal
and tighten the screw clamp. Ensure that the wire cannot easily be pulled from the connector. Plug the modular connection into the
Fan/Power connection and ensure that it latches into the header properly.
WARNING
tanks, mount height should be about one foot above the
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WARNING
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