Owner's Manual
Page 1
... local waste management authority for use on line voltage (120V) millivolt systems. Recycling Notice M3375 This control contains mercury in a sealed tube. Do not place control in U.S.A. 1• • ©Honeywell Inc. 1996 • Form Number 69-0394-3 M3375 HELD ON BY TWO CAPTIVE SCREWS.) M9615 ...HEAT ANTICIPATOR TIME INDICATOR ARROW THERMOSTAT BASE WALLPLATE (BEHIND THERMOSTAT. THERMOSTAT FEATURES I-Front of an old control containing mercury in a sealed tube. CT1800, CT1801, CT1802 Electromechanical Fuel Saver Thermostat and Wallplate/Subbase Installation Instructions...
... local waste management authority for use on line voltage (120V) millivolt systems. Recycling Notice M3375 This control contains mercury in a sealed tube. Do not place control in U.S.A. 1• • ©Honeywell Inc. 1996 • Form Number 69-0394-3 M3375 HELD ON BY TWO CAPTIVE SCREWS.) M9615 ...HEAT ANTICIPATOR TIME INDICATOR ARROW THERMOSTAT BASE WALLPLATE (BEHIND THERMOSTAT. THERMOSTAT FEATURES I-Front of an old control containing mercury in a sealed tube. CT1800, CT1801, CT1802 Electromechanical Fuel Saver Thermostat and Wallplate/Subbase Installation Instructions...
Owner's Manual
Page 2
... bulbs. If the cover does not snap off power to 30 volt control circuit. For single-stage heat pump without auxiliary heat or central electric ... for a screw that require the thermostat to control the fan in heating. Before removing the old thermostat from the bottom. wire,... 150 to Table 1. wire, 15-30 volt control circuit. 1 PREPARATION Check thermostat and wallplate suitability for your thermostat... local Honeywell distributor. For gas or oil heating system or 3-wire zone valve heating system. Save package of old thermostat. Refer to 30 volt control circuit....
... bulbs. If the cover does not snap off power to 30 volt control circuit. For single-stage heat pump without auxiliary heat or central electric ... for a screw that require the thermostat to control the fan in heating. Before removing the old thermostat from the bottom. wire,... 150 to Table 1. wire, 15-30 volt control circuit. 1 PREPARATION Check thermostat and wallplate suitability for your thermostat... local Honeywell distributor. For gas or oil heating system or 3-wire zone valve heating system. Save package of old thermostat. Refer to 30 volt control circuit....
Owner's Manual
Page 4
...to connect to illustration and strip thermostat wire insulations as necessary. Firmly tighten screws. STRIP 5/16 in . [11 mm] BARRIER M1556B FOR CT1800 heating-only For 2-wire system, connect either wire to R terminal and the other wire to W terminal. Push excess wire back into wall..., and plug hole in wall with nonflammable insulation to prevent drafts from the listed control function and the equipment control circuit. Strip the insulation off the wire where it connects to B terminal. Push excess wire back into wall, and...
...to connect to illustration and strip thermostat wire insulations as necessary. Firmly tighten screws. STRIP 5/16 in . [11 mm] BARRIER M1556B FOR CT1800 heating-only For 2-wire system, connect either wire to R terminal and the other wire to W terminal. Push excess wire back into wall..., and plug hole in wall with nonflammable insulation to prevent drafts from the listed control function and the equipment control circuit. Strip the insulation off the wire where it connects to B terminal. Push excess wire back into wall, and...
Owner's Manual
Page 5
... "W", USE "Y" AND "W" ON NEW THERMOSTAT; THIS THERMOSTAT IS NOT DESIGNED TO CONTROL AUXILIARY HEAT. 3 SOME HEAT PUMPS USE "B" INSTEAD OF "O". Control Function Heating transformer power to control circuit Cooling transformer power to matching terminals on the subbase. M2415B 5 69-0394-3... REQUIRED. FOR CT1802 heating/cooling Connect the wires to control circuit Heating relay or valve Cooling relay Fan relay Heating changeover valve or damper control circuit Cooling changeover valve or damper control circuit Heat pump compressor control circuit. CENTRAL ELECTRIC SYSTEM W Y B P R ...
... "W", USE "Y" AND "W" ON NEW THERMOSTAT; THIS THERMOSTAT IS NOT DESIGNED TO CONTROL AUXILIARY HEAT. 3 SOME HEAT PUMPS USE "B" INSTEAD OF "O". Control Function Heating transformer power to control circuit Cooling transformer power to matching terminals on the subbase. M2415B 5 69-0394-3... REQUIRED. FOR CT1802 heating/cooling Connect the wires to control circuit Heating relay or valve Cooling relay Fan relay Heating changeover valve or damper control circuit Cooling changeover valve or damper control circuit Heat pump compressor control circuit. CENTRAL ELECTRIC SYSTEM W Y B P R ...
Owner's Manual
Page 6
...the number you recorded in Step 7. IMPORTANT: Do not cycle heating system until step 7 is usually a gas valve, a relay or burner control box, Aquastat controller or zone valve with the thermostat wires connected to match the number you wrote in the box in the bottom corners of the system...50/60CY .32 AMP @ 60CY ZONE VALVE SHOWS VOLTAGE RATING FROM MAIN FUEL SUPPLY 24 Vac 50/60 Hz 0.4 AMP TYPICAL GAS VALVE OIL BURNER CONTROL SHOWS CURRENT DRAW SHOWS VOLTAGE 0.2 3A0MVPACRATING TO BURNER SHOWS ANTICIPATOR SETTING T T F F M6116B Move the heat anticipator to it. These fit the slots...
...the number you recorded in Step 7. IMPORTANT: Do not cycle heating system until step 7 is usually a gas valve, a relay or burner control box, Aquastat controller or zone valve with the thermostat wires connected to match the number you wrote in the box in the bottom corners of the system...50/60CY .32 AMP @ 60CY ZONE VALVE SHOWS VOLTAGE RATING FROM MAIN FUEL SUPPLY 24 Vac 50/60 Hz 0.4 AMP TYPICAL GAS VALVE OIL BURNER CONTROL SHOWS CURRENT DRAW SHOWS VOLTAGE 0.2 3A0MVPACRATING TO BURNER SHOWS ANTICIPATOR SETTING T T F F M6116B Move the heat anticipator to it. These fit the slots...
Owner's Manual
Page 7
...will void the warranty. 50 60 70 80 M859 Heating-Only System Turn on top of the thermostat control the low and high temperature for energy savings and comfort control as explained in Step 2. We recommend Energizer® batteries. The thermostat itself will operate without batteries, ...but will burn out the thermostat heat anticipator, which could damage the clock. M9618 11 CHECKOUTTHERMOSTAT OPERATION AND SETTEMPERATURE CONTROL LEVERS The two levers on power to the furnace. 7 69-0394-3 Other types of batteries are dead, replace with two new AAA...
...will void the warranty. 50 60 70 80 M859 Heating-Only System Turn on top of the thermostat control the low and high temperature for energy savings and comfort control as explained in Step 2. We recommend Energizer® batteries. The thermostat itself will operate without batteries, ...but will burn out the thermostat heat anticipator, which could damage the clock. M9618 11 CHECKOUTTHERMOSTAT OPERATION AND SETTEMPERATURE CONTROL LEVERS The two levers on power to the furnace. 7 69-0394-3 Other types of batteries are dead, replace with two new AAA...
Owner's Manual
Page 8
...periods. IMPORTANT: To avoid compressor damage, do not operate the cooling system if outdoor temperature is not occupied. Move both temperature control levers together at 5°F (3°C) below room temperature. The fan will stop when the furnace cools. IMPORTANT: If thermostat fails...periods. IMPORTANT: If thermostat fails any position. After checkout, reset both temperature control levers together at 1-800-468-1502. 69-0394-369-0846 8 4 Helping You Control Your World www.honeywell.com/yourhome Set the red lever to the energy savings temperature you want when...
...periods. IMPORTANT: To avoid compressor damage, do not operate the cooling system if outdoor temperature is not occupied. Move both temperature control levers together at 5°F (3°C) below room temperature. The fan will stop when the furnace cools. IMPORTANT: If thermostat fails...periods. IMPORTANT: If thermostat fails any position. After checkout, reset both temperature control levers together at 1-800-468-1502. 69-0394-369-0846 8 4 Helping You Control Your World www.honeywell.com/yourhome Set the red lever to the energy savings temperature you want when...