Bard WH612 Installation Instructions Manual

Manual 2100-480Page 15 of 24OPTIONAL OUTDOOR THERMOSTATAPPLICATIONSSince most equipment at the time of manufacture is notdesignated for any specific destination of the countryand are installed in areas not approaching the loweroutdoor temperature range, outdoor thermostats are notfactory installed as standard equipment, but are offeredas an option. There are also different applications forapplying outdoor thermostats. The set point of eithertype of outdoor thermostat application is variable withgeographic region and sizing of the heating equipmentto the individual structure. Utilization of the heatingApplication Data, and the heat loss calculation of thebuilding are useful in determining the correct set points.Temperature and Humidity Controller #8403-060, alongwith the Outdoor Sensor option Part #8403-061, can beused to:•Limit minimum outdoor temperature for cooling option.•Limit minimum outdoor temperature for heat pump option.•Inhibit electric heat operation for heat pumps aboveselected outdoor temperature.Thus, not requiring the optional compressor cut-offthermostat or the electric heat cut-off thermostat option.FIGURE 10COMPRESSOR CUTOFF THERMOSTAT WIRING4 – 10KW 1 PH – 6 & 9KW 3 PHFIGURE 11COMPRESSOR CUTOFF THERMOSTAT WIRING15 – 20KW 1 PH AND 3 PH