Manafacture: Honeywell
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File name: 6c0c7e44-bef5-4118-bd5f-ba64fde26946.pdf
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manual abstract
12-93 • Form Number 69-0816 Toll-free Customer Assistance Toll-free Customer Assistance 7:00 a.m.-5:30 p.m. Central Time. Before you call, please have the following information available—thermostat model number and date code, kind of heating/cooling system (i.e., hot water, warm air, oil, gas, etc.), number of wires connected to the thermostat. NOTICE This equipment is a Class B digital apparatus, which complies with Canadian Radio Interference Regulations, CRC c. 1374. 11N Your new thermostat provides energy saving control for a 24 Vac multistage heat pump heating/ cooling system direct from the control transformer. The CT8611 includes SYSTEM and ENRG SAV LEDs located near the top of the thermostat face. The SYSTEM LED lights when the thermostat is signaling for heating or cooling. The ENRG SAV LED lights during the LEAVE and SLEEP periods. The CT8611 also includes AUX. HT. and EM. HT. LEDs near the bottom center of the subbase. The AUX. HT. LED lights whenever the thermostat is calling for operation of the backup or auxiliary heater. Backup (auxiliary) heat is more expensive to operate than the heat pump and typically is used only when the heat pump is unable to handle the heating load. The EM. HT. LED lights whenever the thermostat system switch is in the EM. HT. position. Heat and cool anticipation is fixed in all models; no adjustment is necessary. Cycle rates are adjustable for auxiliary heating stage. Any questions concerning your system’s compatibility with your thermostat may be directed to Honeywell Customer Assistance at their toll-free number, 1-800-468-1502. WARNING This device is designed to operate on low voltage (20 to 30 Vac). The application of higher voltage is dangerous and may cause electrical shock, fire or personal injury. WHEN INSTALLING THIS PRODUCT… 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the CT8611 Heat Pump Thermostat Wiring Guide, form 69-0817, to make sure the product is suitable for your application. 3. Allow thermostat to warm to room temperature before operating. 4. After installation is complete, check thermostat operation as provided in these instructions. 3 69-0816 TOOLS REQUIRED FOR INSTALLATION TOOLS REQUIRED FOR INSTALLATION Test to make certain that your heating and cooling systems are working properly. If either does not work, contact your local heating/air conditioning dealer. To avoid compressor damage, do not operate the cooling system if outdoor temperature is below 50° F [10° C]. TURN OFF POWER to the system at the heat pump and at the fuse/circuit breaker panel. Carefully unpack your new thermostat. Save instructions, proof of purchase from packaging and original receipt. FLAT BLADE SCREWDRIVER HAND OR POWER DRILL WITH 3/16 INCH DRILL BIT, IF NEEDED TO DRILL HOLES IN WALL WIRE CUTTER/STRIPPER OR SHARP KNIFE, IF NEEDED TO STRIP WIRES MASKING TAPE, IF NEEDED TO LABEL WIRES AS THEY ARE DISCONNECTED FROM OLD THERMOSTAT SPIRIT LEVEL, IF NEEDED TO LEVEL THERMOSTAT FOR APPEARANCE M849 4 REMOVE OLD THERMOSTAT WARNING If your old thermostat is attached to a junction box in the wall, it is likely that 120V are present. To prevent electrical shock hazard, do not proceed. Call a qualified electrician. CAUTION 1. Disconnect power supply to prevent electrical shock or equipment damage. 2. After wiring is complete, push excess wire back into the hole, and plug hole with nonhardening caulk, putty, or insulation to prevent drafts from affecting thermostat operation. Remove cover from old thermostat. If it doesn’t snap off when pulled firmly from the bottom, check for a screw that locks the cover. Loosen screws holding thermostat to subbase, wallplate or wall, and lift away. Disconnect wires from old thermostat or sub base. Always label all wires as you disconnect them from your old thermostat. Use the CT8611 Wire Tags provided to label each wire with the appropriate terminal designation as you remove it. It is important to note the terminal designation when removing wires. Not all thermostats are wired by color code. Keep the wires from falling back into the wall by wrapping them around a pencil, as shown. WIRES THROUGH WALL OPENING M5136 5 69-0816 Do not discard your old thermostat until you Do not discard your old thermostat until you MERCURY SWITCH tains mercury, do not dispose of it in the trash, see below. ANTICIPATOR RECYCLING THERMOSTAT SCALE If this thermostat is replacing a thermostat that contains mercury in a sealed tube, do notplace your old COILED ANTICIPATOR BIMETAL SETTING LEVER M3376thermostat in the trash. Contact your local waste management authority for instructions regarding recycling and the proper disposal of your old Typical location of a mercury switchthermostat. in a thermostat. If you have questions, call Honeywell Inc. at 1-800-468-1502. 6 MOUNT THERMOSTAT SUBBASE The subbase does not require leveling for Thread wires through the center opening of proper operation; ...