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LINE VOLTAGE − FIELD-INSTALLED
CLASS 2 VOLTAGE − FIELD-INSTALLED NEC/CEC
NOTE − ALL REMAINING WIRES FACTORY-INSTALLED
TO EXTERNAL LOAD 24VAC AT .5 AMP MAXIMUM
NEC/CEC CLASS 2, 3 VA
FACTORY INSTALLED JUMPERS. − R" to O" USED ONLY IN CONDENSING UNIT APPLICATIONS. REMOVE IN HEAT
PUMP APPLICATIONS. REMOVE DS" TO Y1" JUMPER WHEN HUMIDITY CONTROL THERMOSTAT (SIGNATURES-
TATT IS USED. REMOVE Y1" TO Y2" JUMPER IN TWO−STAGE COOLING APPLICATIONS.
FACTORY INSTALLED JUMPER
NOTE − USE COPPER CONDUCTORS ONLY
WHEN TWO-STAGE THERMOSTAT IS USED, CONNECT SECOND-STAGE HEAT BULB TO TERMINAL W2," REMOVE
JUMPER BETWEEN TERMINALS R" AND W2"
THERMOSTAT HEAT ANTICIPATION SETTING .4 AMP (ELECTRIC HEAT)
505341M 04/08
Figure 18. Cooling Application with Electric Heat
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