Honeywell T8775C1005 Support Question
Honeywell T8775C1005 Support Question
Find answers below for this question about Honeywell T8775C1005 - Digital Round 24V.Need a Honeywell T8775C1005 manual? We have 2 online manuals for this item!
Question posted by fjcramerjr on December 13th, 2012
My New T8775c1005
T stat will display temp and operate ok for a few minutes then loses the display and does not operate. I take the t stat off the sub base and put it back on and it will work for a few minutes and lose the display
Current Answers
Related Honeywell T8775C1005 Manual Pages
Owner's Manual - Page 1
Registered Trademark Patents Pending © 2004 Honeywell International Inc. T8775A,C The Digital Round™ Non-Programmable Thermostats
OWNER'S GUIDE
® U.S. All Rights Reserved
69-1679EF-1
Owner's Manual - Page 2
(T8775C ONLY) SELECTS COOL/OFF/HEAT
(T8775C ONLY) SELECTS ON/AUTO
ROOM
SHOWS THAT THE
SET
CURRENT ROOM
TEMPERATURE
IS DISPLAYED.
DISPLAYS ROOM OR SET TEMPERATURE
SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED.
DISPLAYS AND ADJUSTS
TEMPERATURE SETTING/TURNS
BACKLIGHT ON
M19470
Fig. 1. T8775 Thermostat (features and operation).
69-1679EF-1
2
Owner's Manual - Page 3
... temperature is held permanently in memory.
3
69-1679EF-1
Use for most homes. Operating Your Thermostat
NOTE: Batteries are controlled by using SYSTEM and FAN switches located on the top of the thermostat (see Fig. 1). SET THE SYSTEM SWITCH: ❑ Heat: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems are...
Owner's Manual - Page 4
...as shown in cooling (T8775C only).
❑ Turn the dial one click to display the current temperature setting. If a change to the temperature setting is not made within ...five seconds, the mode will switch to the room temperature display.
❑ A indicator points to 37°C) in Fig. 1. Display Temperature Setting
NOTE: Your temperature setting can be set anywhere from
...
Owner's Manual - Page 5
... equipment manufacturer instructions. Do not operate cooling when outside temperature is set to compressor or other equipment.
Heating or cooling does not come on.
❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). Allow compressor to remain off for five minutes before restarting. Adjust Temperature Setting...
Owner's Manual - Page 6
... or reset if necessary.
❑ Check for five minutes, or if a power interruption occurs while the compressor is present in the display.
❑ In cooling, make sure the temperature setting...the display (T8775C only). ❑ In heating, make sure the temperature setting is below the room temperature and a solid snowflake is running, the thermostat will flash during this thermostat, ...
Installation Instructions - Page 1
..., check out product operation as an outside
wall behind doors and in
corners. - Disconnect power supply before installation.
® U.S. Do not install the thermostat where it can be... T8775A,C
The Digital Round™ Non-Programmable Thermostats
The T8775A,C Thermostats provide single-stage temperature control for 24V systems. The T8775A,C models include a thermostat, wallplate (for ...
Installation Instructions - Page 2
... MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 FACTORY INSTALLED JUMPER. Typical hookup of T8775A in heat-only system with single transformer. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
Wiring
IMPORTANT Use 18-gauge wire to prevent electrical shock or equipment damage.
O
B
2 Rc
G
R
Y
W
1
HEATING
COMPRESSOR FAN
RELAY OR
CONTACTOR RELAY
VALVE...
Installation Instructions - Page 3
... or oil systems. If the T8775C is being installed on the back of the thermostat. See Fig. 8. See Fig. 10.
3
69-1677EF-1 This is the correct setting for recommended cycle rate. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
CUSTOMIZE THERMOSTAT
Setting Fuel Switch (T8775C only)
The fuel switch is preset at the top of...
Installation Instructions - Page 4
T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
(T8775C ONLY) SELECTS COOL/OFF/HEAT
(T8775C ONLY) SELECTS ON/AUTO
ROOM
SHOWS THAT THE
SET
CURRENT ROOM
TEMPERATURE IS
DISPLAYED.
Operating at too low of an outdoor temperature may cause compressor damage.
After approximately five minutes, the thermo- Automation and Control Solutions
Honeywell ...
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