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Question posted by kira2542 on November 4th, 2011

Ct-1800 Clock Thermostat

Thermostat works well but clock is broken. Can I still buy a new one ? Or can I get it repaired. I don't like the digital thermostats but if I must get one which one ? I need something for 5-2 days. Thanks- Ann

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Related Honeywell CT1800 Manual Pages

Owner's Manual - Page 1

... on line voltage (120V) millivolt systems. Recycling Notice M3375 This control contains mercury in the trash at the end of thermostat. CT1800, CT1801, CT1802 Electromechanical Fuel Saver Thermostat and Wallplate/Subbase Installation Instructions CT1800 24V gas or oil heat, or 3 wire zone valves. CT1801 24V gas or oil heat/cool. Contact your old control...

Owner's Manual - Page 2

... STRIP WIRES MASKING TAPE, IF NEEDED TO LABEL WIRES DISCONNECTED FROM OLD THERMOSTAT If wallplate or subbase is below 50°F (10°C) Turn off when pulled firmly from the wall, look at the main fuse panel. TABLE 1-THERMOSTAT AND SUBBASE APPLICATIONS.a Thermostat Subbase Wallplate Model Included For Use With CT1800 199986B Wallplate 2- wire, 15...

Owner's Manual - Page 3

... be used on a system with the operation of the new thermostat. Do not allow them to touch, or you may damage your... SUBBASE OR WALLPLATE MOUNTING SCREWS (2) 3 69-0394-3 If there are replacing a Honeywell Chronotherm® Thermostat, you may find one or two wires that go to the clock terminals on wall, hold wallplate or subbase in . Disconnect the wires, and wrap them together. Record ...

Owner's Manual - Page 4

... in . [11 mm] BARRIER M1556B FOR CT1800 heating-only For 2-wire system, connect either wire to R terminal and the other wire to prevent drafts from affecting thermostat operation. 2-WIRE SYSTEM R W HEATING RELAY... to the terminals. If RC is left unconnected, the air conditioner will not turn on your new subbase: • Refer to RH. Strip the insulation off the wire where it connects to ...

Owner's Manual - Page 5

... Y B 2 P R O G FAN ON AUTO HEAT COOL OFF COMPRESSOR CONTACTOR COIL REVERSING VALVE FAN RELAY L2 L1 (HOT) 1 POWER SUPPLY. IF OLD THERMOSTAT HAS ONE WIRE TO "Y" AND ONE TO "W", USE "Y" AND "W" ON NEW THERMOSTAT; 4-WIRE SYSTEM 5-WIRE SYSTEM 2 G FAN ON AUTO RC RH W Y HEAT COOL OFF HEATING RELAY OR VALVE COIL FAN RELAY COOLING...

Owner's Manual - Page 6

...usually located behind the furnace cover. IMPORTANT: Most hot water systems require a setting of the thermostat base (see illustration); Insert the two captive mounting screws located in Step 3. If current ... you recorded in room temperature swings or burn out the anticipator and void the thermostat warranty. IMPORTANT: Do not cycle heating system until step 7 is the number you...

Owner's Manual - Page 7

... batteries are dead, replace with two new AAA alkaline batteries. Other types of cover into the mounting slots in the illustration. The thermostat itself will operate without batteries, but ...nighttime (dark) portion of base. this will burn out the thermostat heat anticipator, which could damage the clock. 8 INSTALL CLOCK BATTERIES Power is correctly set, the Time Indicator Arrow (see ...

Owner's Manual - Page 8

...fan will stop when the furnace cools. The fan should shut off . IMPORTANT: If thermostat fails any position. Move both levers together at 5°F (3°C) below room temperature.... 5°F (3°C) above room temperature. The heat should shut off . IMPORTANT: If thermostat fails any time delay that may be built into the compressor control circuit. The heat should...