Honeywell T8775A User Manual download pdf (Page 3)

T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS

3 XX-XXXX—X

3 69-1677EF

CUSTOMIZE THERMOSTAT

Setting Fuel Switch (T8775C only)

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. If 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

immediately with the heating equipment in a system

where the G terminal is connected.

Fig. 7. Fuel switch.

DIP Switch

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.

Fig. 8. DIP switch.

Set Heat Cycle Rate

Use DIP switches 1 and 2 to set the heat cycle rate.

See Table 1.

Table 1. Heat Cycle Rate.

Fahrenheit/Celsius Indication

Use DIP switch 3 to set the desired temperature

indication. See Table 2.

Table 2. Temperature Indication.

Mounting Thermostat to Wallplate

Fig. 9. Mounting thermostat to wallplate.

OPERATION

Setting SYSTEM and FAN Switches

(T8775C only)

System and fan settings are controlled manually by

using the switches located at the top of the

thermostat. See Fig. 10.

M1949

FUEL SWITCH

1 2 3

M19567

Heating System

Cycles

Per

Hour

DIP

Switch

DIP

Switch

Steam, Gravity 1 On On

High Efficiency Warm Air

(90%+ efficiency), Hot Water,

Heat Pump

3OffOn

Gas or Oil Warm Air (factory

setting)

6OffOff

Electric Warm Air 9 On Off

In Floor Radiant Heat Check with manufacturer

for recommended cycle

rate.

Fahrenheit/Celsius

Display DIP Switch 3

Fahrenheit (factory setting) Off

Celsius On

M19498

ENGAGE TABS

AT BOTTOM OF

THERMOSTAT

AND WALL PLATE.

PRESS UPPER

EDGE OF CASE

TO LATCH

1 2 3 4 5 6 7 8 ... 11 12

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Honeywell T8775A User Manual Page 3

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