109
FIGURE 87
FULLY MODULATING – TYPICAL DUAL FUEL APPLICATION – SINGLE STAGE HEAT PUMP (NON-COMMUNICATING)
NON-COMMUNICATING
THERMOSTAT (1)
➤
FIGURE 86
WIRING DIAGRAM FOR MODULATING HEAT (NO DUAL FUEL) (NON-COMMUNICATING)
V / W2
Y
H
(Y
2
)
Y (Y
2
)
Y
L
* (Y
1
)
Y
L
(Y
1
)
*
*
Y Y
2
(1) FOR REMOTE SENSOR INSTALLATION
(1)
SEE THERMOSTAT INSTALLATION INSTRUCTIONS
THERMOSTAT MODEL: (-)HC-TST401MDMS
REMOTE SENSOR: F1451378
+ S –
12 FT
OUTDOOR SENSOR
(1)
NON-COMMUNICATING
MODULATING THERMOSTAT
*2 STAGE COOLING ONLY
**WARNING: DO NOT APPLY 24VAC TO THE V/W2 TERMINAL ON THE IFC (THIS IS OFTEN DONE DURING SETUP, TROUBLESHOOTING AND/OR
DIAGNOSING PROBLEMS). DOING SO WILL DAMAGE THE THERMOSTAT.
**WARNING: DO NOT APPLY 24VAC TO THE V/W2 TERMINAL ON THE IFC (THIS IS OFTEN DONE DURING SETUP, TROUBLESHOOTING AND/OR
DIAGNOSING PROBLEMS). DOING SO WILL DAMAGE THE THERMOSTAT.
**
**
Summary of Contents for RGFE
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