Chapter 3
Mounting the controller
This chapter gives recommendations and requirements for mounting a Tracer ZN521 zone controller.
Location recommendations
Trane recommends locating the Tracer ZN521 zone controller:
•Near the controlled piece of equipment to reduce wiring costs
•Where it is easily accessible for service personnel
•Where public access is restricted to minimize the possibility of tam- pering or vandalism
The controller can often be mounted inside the wiring enclosure of the associated mechanical equipment.
Operating environment requirements
Operate a Tracer ZN521 zone controller in an indoor environment that meets the following requirements:
•Temperature: from 32°F to 140°F (from 0°C to 60°C)
•Relative humidity:
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