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Thermostat
Honeywell
Q674L
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69-0392—9
11
T874R THERMOSTATS AND Q674L SUBBASES
Contents
Main
INSTALLATION INSTRUCTIONS
T874R Thermostats and Q674L Subbases
69-0392-9
Installation Instructions for the Trained Service Technician.
APPLICATION
OPERATION
RECYCLING NOTICE
ot
INSTALLATION
When Installing this Product
Location
Wiring the Subbase
T874R THERMOSTATS AND Q674L SUBBASES
Fig. 6. Internal schematic and typical wiring diagram for Y594R1243 (T874R1152/Q674L1207).
Page
69-03929 6
T874R THERMOSTATS AND Q674L SUBBASES
T874R THERMOSTATS AND Q674L SUBBASES
Fig. 12. Internal schematic and typical wiring diagram for Y594R1797 (T874R1988/Q674L1868).
Mounting the Thermostat
not
Do not overtighten screws
SETTINGS
Heat Anticipator Setting (2nd Stage Y594R1243)
Temperature Setting
Subbase Setting
CHECKOUT
Heating
Cooling
Emergency Heat
Fan
