Heat Controller HEV Series Installation, Operation & Maintenance Manual page 33

Heat Controller, Inc.
Table 8: Nominal resistance at various temperatures
Temp Temp Resistance
(°C) (°F) (kOhm)
HEV/H SERIES
DXM2 CONTROLS
Temp Temp Resistance
(°C) (°F) (kOhm)
DXM2 Thermostat Details
Thermostat Compatibility – Most heat pump and heat/cool
thermostats can be used with the DXM2, as well as Heat
Controller communicating thermostats.
Anticipation Leakage Current – Maximum leakage cur-
rent for "Y1" is 50 mA and for "W" is 20mA. Triacs can be
used if leakage current is less than above. Thermostats with
anticipators can be used if anticipation current is less than
that specifi ed above.
Thermostat Signals -
• "Y1, Y2, W1, O" and "G" have a 1 second recognition time
when being activated or being removed.
• "R" and "C" are from the transformer.
• "AL1" and "AL2" originate from the Alarm Relay.
• "A+" and "B-" are for a communicating thermostat.
• "A" is paralleled with the compressor output for use with
well water solenoid valves.
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Installation, Operation & Maintenance