Honeywell T8775C Thermostat User Manual


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T8775A, C THE DIGITAL ROUND T._NON-PROGRAMMABLE THERMOSTATS
CUSTOMIZETHERMOSTAT
SettingFuel Switch(T8775Conly)
The fuel switch is preset at the factory in the F
position See Fig. 7. This is the correct setting for gas
or oil systems• tf the T8775C is being installed on an
electric heat system, or a heat pump, set the switch to
the E position The E setting allows the fan to turn on
immediateIy with the heating equipment in a system
where the G terminal is connected•
° i
Table 1. Heat Cycle Rate.
Cycles DiP DIP
Per Switch Switch
Hour 1 2
On On
Off On
Heating System
Steam, Gravity
High Efficiency Warm Air
_0%+ efficiency), Hot Water,
Heat Pump
Gas or Oil Warm Air (factory Off Off
setting)
Electric Warm Air On Off
in Floor Radiant Heat CheckwJth manufacturer
for recommended cycle
rate.
Fahrenheit/Celsius Indication
Use DIP switch 3 to set the desired temperature
indication. See Table 2
Table 2. Temperature Indication.
FahrenheitlCelsius
Display DiP Switch 3
Fahrenheit (factory setting) Off
Celsius On
Fig. 7. Fuel switch.
DIPSwitch
To adjust the heat cycle rate or the Fahrenheit/Celsius
indication, locate DIP switch 1,2 and 3 on the back of
the thermostat See Fig. 8
MountingThermostat to Wallplate
ENGAGE TABS
AT BOTTOM O_
AND WALL ;LA rE
PRESS UPPER \
EDGE Of CASE
Fig. 8. DIP switch.
Set HeatCycle Rate
Use DIP switches 1and 2 to set the heat cycle rate.
See Table 1.
Fig. 9. Mounting thermostat to wallplate.
OPERATION
SettingSYSTEMand FANSwitches
(T8775Conly)
System and fan settings are controlled manually by
using the switches located at the top of the
thermostat. See Fig. 10.
3 69-I677ES--1
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