Heat Controller DXM2 Application And Instruction Manual page 17

Heat Controller, Inc.
DXM2 Thermostat Details
THERMOSTAT COMPATABILITY - IT IS STRONGLY RECOM-
MENDED THAT A COMMUNICATING THERMOSTAT (7602-443)
BE USED WITH GEOMAX COMMUNICATING SYSTEMS FOR:
1. Four-wire connections between the thermostat, compres-
sor section (HTS), and air handler (WDG).
2. Confi guring, monitoring and diagnosing the system in
PLAIN ENGLISH on the thermostat.
Thermostat Compatibility
Most all heat pump and heat/cool thermostats can
be used with the DXM2 Control. For additional
diagnostic capabilities, the communicating thermostat is
recommended.
Anticipation Leakage Current
Maximum leakage current for "Y1" is 50mA 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", "W", "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" is paralleled with the compressor output for use
with well water solenoid valves.
Safety Listing
The DXM2 Control is listed under UL 873, and is CE listed
under IEC 60730.
DXM2 UNIT CONTROLS
DXM2 Service & Application Notes
17
Application, Operation, & Maintenance Manual