Owner's Manual
Page 1
...; NON-PROGRAMMABLE THERMOSTATS CT8775A Heat Only Thermostat (20 to 30 Vac) and CT8775C Heating-Cooling Thermostat (20 to 30 Vac) Para obtener un documento con las instrucciones en español, por favor visite nuestro sitio de web a: www.honeywell.com/yourhome. Separate Wallplate from Thermostat...5 Step 6. Prepare for Installation ...3 Step 2. Remove Old...
...; NON-PROGRAMMABLE THERMOSTATS CT8775A Heat Only Thermostat (20 to 30 Vac) and CT8775C Heating-Cooling Thermostat (20 to 30 Vac) Para obtener un documento con las instrucciones en español, por favor visite nuestro sitio de web a: www.honeywell.com/yourhome. Separate Wallplate from Thermostat...5 Step 6. Prepare for Installation ...3 Step 2. Remove Old...
Owner's Manual
Page 3
... Gas Millivolt Electric Air Conditioning Baseboard Electric (120/240 line volt)b Single Stage Heat Pump Multistage Heat Pumps/Multistage Equipment Compatibility with CT8775A Yes No Yesa Yes Yes No No No No No Compatibility with CT8775C Yes Yes Yesa Yes Yes No Yes No Yes No...compatible with your system is compatible with Taco zone valves and 2- drywall, 7/32 in . PREPARE FOR INSTALLATION ❑ Check Table 1, the compatibility chart, to make sure the thermostat is not compatible, call Honeywell Customer Care, toll-free, 1-800-468-1502. or 3-wire WhiteRodgers zone valves (No. 1311 and ...
... Gas Millivolt Electric Air Conditioning Baseboard Electric (120/240 line volt)b Single Stage Heat Pump Multistage Heat Pumps/Multistage Equipment Compatibility with CT8775A Yes No Yesa Yes Yes No No No No No Compatibility with CT8775C Yes Yes Yesa Yes Yes No Yes No Yes No...compatible with your system is compatible with Taco zone valves and 2- drywall, 7/32 in . PREPARE FOR INSTALLATION ❑ Check Table 1, the compatibility chart, to make sure the thermostat is not compatible, call Honeywell Customer Care, toll-free, 1-800-468-1502. or 3-wire WhiteRodgers zone valves (No. 1311 and ...
Owner's Manual
Page 4
... outdoor temperature is connected to six or more wires If you can damage the transformer. STEP 3. NOTE: If none of the special installations apply to your particular application, please skip to touch, or you are replacing a thermostat that may have either system does not work... with your system, call Honeywell Customer Care, at the furnace or the fuse/circuit breaker panel. ❑ Carefully unpack your local heating/air-conditioning dealer. Replacing a ...
... outdoor temperature is connected to six or more wires If you can damage the transformer. STEP 3. NOTE: If none of the special installations apply to your particular application, please skip to touch, or you are replacing a thermostat that may have either system does not work... with your system, call Honeywell Customer Care, at the furnace or the fuse/circuit breaker panel. ❑ Carefully unpack your local heating/air-conditioning dealer. Replacing a ...
Owner's Manual
Page 5
...or onto an electrical box. ❑ To mount directly to three wires on a zoned hot water heating system, the CT8775A,C thermostats will work if an isolation relay is installed. Replacing a thermostat that is connected to three wires on a zoned hot water heating system If you are replacing a .... WIRES THROUGH WALL OPENING STEP 5. If you purchased a CT8775A thermostat, return the product to keep them from the thermostat by setting the thermostat fan switch to ON, the CT8775C Thermostat will only work with the installation at the right. Continue with your local heating and/or ...
...or onto an electrical box. ❑ To mount directly to three wires on a zoned hot water heating system, the CT8775A,C thermostats will work if an isolation relay is installed. Replacing a thermostat that is connected to three wires on a zoned hot water heating system If you are replacing a .... WIRES THROUGH WALL OPENING STEP 5. If you purchased a CT8775A thermostat, return the product to keep them from the thermostat by setting the thermostat fan switch to ON, the CT8775C Thermostat will only work with the installation at the right. Continue with your local heating and/or ...
Owner's Manual
Page 8
... wire beneath its matching terminal. Wraparound and straight connections are both of your local R heating/air conditioning contractor. FACTORY INSTALLED JUMPER M19495 FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). If unsure about household wiring procedures, call your old thermostat...(see illustration). ❑ Match the letter of these terminals. ❑ For wiring diagrams, see illustration). IMPORTANT Remove the factory-installed jumper connecting terminals R and Rc on the CT8775C Thermostat if wires will be connected to the labels you placed on your new thermostat...
... wire beneath its matching terminal. Wraparound and straight connections are both of your local R heating/air conditioning contractor. FACTORY INSTALLED JUMPER M19495 FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM). If unsure about household wiring procedures, call your old thermostat...(see illustration). ❑ Match the letter of these terminals. ❑ For wiring diagrams, see illustration). IMPORTANT Remove the factory-installed jumper connecting terminals R and Rc on the CT8775C Thermostat if wires will be connected to the labels you placed on your new thermostat...
Owner's Manual
Page 9
... on the new thermostat and connect Rh to R and R to a single stage heat pump. If wires will be connected to Terminals Connect To Terminals on CT8775A on Old Thermostat R Rh (see Note 1) 4 V Rc R (see Note 1) W, W1, H Y, Y1, M G, F O B (see Note 3) C (see Note 4) X (see Note 4) B (see ...Do not connect both Rh and R terminals on Old and New Thermostats. W - - - - Changeover in cool. (Single stage heat pump only). installation. Transformer common Do not continue Do not continue Second stage heat. Call 1-800468-1502. cal tape and do not use . 4. Tape off wire with...
... on the new thermostat and connect Rh to R and R to a single stage heat pump. If wires will be connected to Terminals Connect To Terminals on CT8775A on Old Thermostat R Rh (see Note 1) 4 V Rc R (see Note 1) W, W1, H Y, Y1, M G, F O B (see Note 3) C (see Note 4) X (see Note 4) B (see ...Do not connect both Rh and R terminals on Old and New Thermostats. W - - - - Changeover in cool. (Single stage heat pump only). installation. Transformer common Do not continue Do not continue Second stage heat. Call 1-800468-1502. cal tape and do not use . 4. Tape off wire with...
Owner's Manual
Page 16
Wiring Diagrams R W 1 HEATING RELAY OR VALVE COIL 1 POWER SUPPLY. M19450 O B Rc 2 G R Y W 1 HEATING RELAY OR VALVE COIL FAN RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 FACTORY INSTALLED JUMPER. M19451 69-1676-1 O B 2 Rc G R Y W 1 HEATING COMPRESSOR FAN RELAY OR VALVE COIL CONTACTOR RELAY 1 POWER SUPPLY. M19452 16 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 FACTORY INSTALLED JUMPER.
Wiring Diagrams R W 1 HEATING RELAY OR VALVE COIL 1 POWER SUPPLY. M19450 O B Rc 2 G R Y W 1 HEATING RELAY OR VALVE COIL FAN RELAY 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 FACTORY INSTALLED JUMPER. M19451 69-1676-1 O B 2 Rc G R Y W 1 HEATING COMPRESSOR FAN RELAY OR VALVE COIL CONTACTOR RELAY 1 POWER SUPPLY. M19452 16 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 FACTORY INSTALLED JUMPER.
Owner's Manual
Page 17
... a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. 17 69-1676-1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 REMOVE FACTORY INSTALLED JUMPER BETWEEN R AND RC. O B Rc 2 G R Y W COMPRESSOR CONTACTOR HEATING 1 RELAY OR VALVE COIL FAN RELAY 1 1 POWER SUPPLY. 4 O Rc 2 R B G Y3 W COMPRESSOR CONTACTOR HEAT CHANGEOVER VALVE 1 FAN COOL...
... a Class B digital apparatus that complies with Canadian Radio Interference Regulations, CRC c. 1374. 17 69-1676-1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 REMOVE FACTORY INSTALLED JUMPER BETWEEN R AND RC. O B Rc 2 G R Y W COMPRESSOR CONTACTOR HEATING 1 RELAY OR VALVE COIL FAN RELAY 1 1 POWER SUPPLY. 4 O Rc 2 R B G Y3 W COMPRESSOR CONTACTOR HEAT CHANGEOVER VALVE 1 FAN COOL...