Description The FH20 Dehumidistat is designed to be wall-mounted and can to help prevent mildew build-up associated with high humidity levels. The FH20 Dehumidistat is designed to be wall-mounted and can be wired in parallel or in series with any 24V thermostat, or in series with line voltage. Parallel Installation Advantages: Desired humidity is maintained regardless of ambient temperature. Disadvantages: The air conditioning system could cycle on during low ambient temperatures. NOTE: DO NOT USE parallel wiring if low temperature compressor protection is not present. Series Installation Advantages: Air conditioning system will not cycle on during low ambient temperature periods. Disadvantages: Humidity levels may be higher than desired during low temperature periods.
