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Correct Wiring Information
My current hot water heating system has a two wire contact closure activation of the circulator pump...
My current hot water heating system has a two wire contact closure activation of the circulator pump...
(Posted by mscho6357 8 years ago)
Popular Honeywell T8775A Manual Pages
Owner's Manual - Page 1
Registered Trademark Patents Pending © 2004 Honeywell International Inc. All Rights Reserved
69-1679EF-1 T8775A,C The Digital Round™ Non-Programmable Thermostats
OWNER'S GUIDE
® U.S.
Owner's Manual - Page 2
DISPLAYS ROOM OR SET TEMPERATURE
SHOWS THAT THE CURRENT TEMPERATURE SETTING IS DISPLAYED. (T8775C ONLY) SELECTS COOL/OFF/HEAT
(T8775C ONLY) SELECTS ON/AUTO
ROOM
SHOWS THAT THE
SET
CURRENT ROOM
TEMPERATURE
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
... not operate the T8775C in cooling mode when the outdoor temperature is held permanently in memory.
3
69-1679EF-1 Setting SYSTEM and FAN Switches (T8775C only)
❑ System and Fan settings are off. ❑ Cool: The thermostat controls your heating system. ❑ Off: Both heating and cooling systems are controlled by using SYSTEM and...
Owner's Manual - Page 4
...;F to 99°F
(7°C to 37°C) in Fig. 1. 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 Room when the room temperature is displayed. ROOM SET
M19489
ROOM SET
M19490
69-1679EF-1
4 Backlit Display
❑ The backlight can be turned on by turning...
Owner's Manual - Page 5
... only).
5
69-1679EF-1
Troubleshooting Guide
CAUTION
Equipment Damage Hazard. Can cause permanent damage to remain off for five minutes before restarting. Heating or cooling does not come on.
❑ Make sure that the SYSTEM switch on the thermostat is below 50°F (10°C). See equipment manufacturer instructions. Adjust Temperature Setting
❑ To lower the...
Owner's Manual - Page 6
... circuit breaker and replace 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 is below the room temperature and a solid snowflake is running, the thermostat will flash during this thermostat, call for cooling...
Owner's Manual - Page 8
Rev. 6-04 Printed in Mexico
www.honeywell.com/yourhome Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario
M1V 4Z9
69-1679EF-1 J.S.
Automation and Control Solutions
Honeywell International Inc.
Installation Instructions - Page 1
... PLASTER. INSTALLATION INSTRUCTIONS
Location
Install the thermostat about 5 ft (1.5m) above the floor in the trash.
Failure to wall.
69-1677EF-1
CAUTION
Electrical Shock or Equipment Damage Hazard. 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...
Installation Instructions - Page 2
... MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 REMOVE FACTORY INSTALLED JUMPER BETWEEN R AND RC.
Typical hookup of T8775C in heat-only system with local electrical codes and ordinances. M19514
Fig. 3. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
Wiring
IMPORTANT Use 18-gauge wire to Fig. 2 through 6 for typical wiring hookups. Disconnect the power supply to prevent...
Installation Instructions - Page 3
...settings are controlled manually by using the switches located at the factory in a system where the G terminal is preset at the top of the thermostat. T8775A,C THE DIGITAL ROUND™ NON-PROGRAMMABLE THERMOSTATS
CUSTOMIZE THERMOSTAT
Setting...or oil systems. If the T8775C is being installed on the back of the thermostat.
M19498
Fig. 9. The E setting allows the fan to the E position. ...
Installation Instructions - Page 4
... .
4. The fan should turn off . Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario
M1V 4Z9
69-1677EF-1 J.S. 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. The...
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