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CTl500, CT1501, CT1502, CT1503
ELECTROMECHANICAL FUEL SAVER
THERMOSTAT AND
WALLPLATEEUBBASE
CTI500-24 V gas or oil heat.
V gas or oil heat/cool.
CTl501-24
CTI502--24 V central electric heat/cool or single stage heat pump without
auxiliary heat.
CTI 503-750 millivolt heat.
NOT FOR USE ON LINE VOLTAGE (120 V) SYSTEMS.
INSTALLATION MANUAL
Any questions concerning the application of this thermostat should be directed to Honeywell Consumer Services
at 1-800-468-1502, Monday-Friday 730 a.
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THERMOSTAT FEATURES I-Front of thermostat. HlGH TEMPERATURE CONTROL LEVER (RED) LOW TEMPERATURE CONTROL LEVER (BLUE)- 1 Ill-Cover removed. 24 HOUR PROGRAM DIAL 'THERMOSTAT THERMOMETER 1 11.711 COVER Il-Hinged cover lifted. .. .~ . ,..... . ANTICIPATOR "--- PROGRAM PINS A HIND THERMOSTAT. HELD ON BY TWO CAPTIVE MOUNTING CAPTIVE SCREWS.)
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k PREPARATION ((1 "1 THERMOSTAT SUBBASE OR MODEL WALLPLATE INCLUDED FOR USE WITH CT1500 199986C Wallplate 2-wire, 15 to 30 volt control circuit For gas or oil heating system. CT1501 Q682A1079 Subbase 4- or 5-wire, 15 to 30 volt control circuit For gas or oil heating/cooling system. CT1502 Q682B1227 Subbase 4-wire, 15 to 30 volt control circuit. For single stage heat pump or central electric heatinglcooling systems that require the thermostat to control the fan in heatino. CT1503
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If wallplate or subbase is mounted on a vertical does not work, contact your local heatingfair outlet box (check old installation), order conditioning dealer. 196393A Cover Plate and Adapter Ring (see appro- NOTE: Do not operate cooling system if outdoor priate figure under step 4). Call Honeywell temperature is below 50' F [loo C]. Consumer Services (1 -800-468-1 502) for ordering information, Monday-Friday, 7:30 a.m. to 500 p.m. Turn off power to the heatingfcooling System Central tim
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F REMOVE OLD THERMOSTAT 0 “3 Remove cover of old thermostat. If the cover Disconnect wires from old thermostat wall- 0 doesn’t snap off when pulled firmly from the plate or subbase. Tape each wire and label bottom, check for a screw that locks the cover on. with the letter of the terminal designation to make Before removing the old thermostat from the reconnection easier. If there are only two wires, 0 wall, look at it carefully to locate the heat labeling is not necessary. anticipat
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b MOUNT WALLPLATE OR SUBBASE 10 “4 If mounting on outlet box, mount as shown base will be level. Drill 3/16 in. holes and gently on appropriate figure. tap anchors into holes until flush with the wall. If mounting on wall, hold wallplate or sub- Position wallplate or subbase as shown in .’ .. base in position and mark holes on wall. appropriate figure, and loosely insert the Use spirit level to make sure wallplate or sub- screws supplied. 4
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n Carefully level the wallplate or subbase and firmly u tighten screws. .. SPIRIT LEVEL ‘‘wm WALLPLATE SCREWS “2) 5 69-0273-9
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WIRE WALLPLATE OR SUBBASE MOTE: All wiring must comply with local electrical For CT1500 heating-only codes and ordinances. Refer to illustration and strip thermostat wire 0. : insulation as necessary. 0 , F"rn ~STFldilRUT . -. . - . . .. . . CONNECTION- II - FOR WRAPAROUND BARRIER CONNECTION- STRlP7116In. [11 mml A POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REOUIRED. Wlll Connect either wire to R terminal and the other wire to W terminal. Firmly tighten
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For CT1501 heating/cooling Connect the wires to matching terminals on 4-WIRE SYSTEM the subbase. U U 5-WIRE SYSTEM I I I I I I RELAY OR CONTACTOR VALVE COIL I I A POWER SUPPLY. PROVIDE DISCONNECT MEANSAND OVERLOAD PROTECTION AS REOUIRED. Ma" A INSTALL JUMPER BETWEEN RC AND RH. 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND M2&13 NOTE: If there are four wires, connect wire If the labels do not agree with the terminal marked R to terminal RH and add a jumper designations on your
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For CT1502 heatinglcooling OLDSUBBASE CONTROL FUNCTION TERMINAL Heating transformer power to R or RH control circuit CENTRAL ELECTRIC SYSTEM Cooling transformer power to RC I1 control circuit. I- U II Heating relay or valve. W Cooling relay. Y Fan relay. G Heating changeover valve or B damper control circuit. Cooling changeover valve or 0 damper control circuit. Heat pump compressor control P CONTACTOR RELAY OR VALVE COIL Push excess wire back into wall. and plug hol
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CT1502, continued For CT1503 750-millivolt heating Connect either wire to R terminal and the SINGLE STAGE HEAT PUMP other wire to W terminal. Firmly tighten (WITHOUT AUXILIARY HEAT) SYSTEM screws. I- -1 Push excess wire back into wall, and plug 0 hole in wall with nonflammable insulation to prevent drafts from affecting thermostat operation. 0 0 / 1 L' + (HOT) u+ A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOPD PROTECTION AS REQUIRED CQZOOA OR 0313A A IFCOMPRESSOR ISCONNE
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- L MOUNT THE THERMOSTAT or subbase as shown in illustration. Do NOT cycle heating system until Step 7 is completed. 10
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SET HEAT ANTICIPATOR LEVER - NOTE: Not applicable on CT1503 millivolt model. gas valve a relay or burner controi box, Aquastat controller or zone valve with the thermostat wires The thermostat's adjustable heat anticipator connected to it These controls are usually located 0 must be correctly set to accurately control behind the furnace cover See next illustration the on-time length of the system. An incorrect setting can result in room temperature swings or burn out the anticipator an
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On the CT1500. CT1501 or CT1502 thermo- stats, move the heat anticipator indicator to match the number you recorded in Step 4 or found on the primary control as shown above, or INSTALL as recorded in Step 7 TIMER F BATTERIES 0 “8 teries in thermostat as shown. Once a year, or when batteries are dead, replace with two new AAA alkaline batteries. Other types of batteries are more likely to leak, which could damage the timer. The thermostat itself will operate without batteries, but w
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SET TIMER Adjust the timer by moving the knob in 0 clockwise direction. Do NOT reverse the knob. When time is correctly set, the Time Indicator Arrow (see illustration) must point to the correct time and the corresponding daytime (lighr) or nighitime (dark) portion of the program dial. 69-0273-9 13
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I- ATTACH THERMOSTAT COVER 0 “10 Make sure the packing inserts in the thermo- 0 stat base have been removed. as explained in step 3 Place the two tabs on upper edge of cover 0 into mounting slots in thermostat base Swing cover downward until it engages 0 catch at bottom of base .. 14
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CHECK OUT THERMOSTAT OPERATION AND SET TEMPERATURE CONTROL b LEVERS cn il 1 LOW TEMP.lBL"E MARK1 The two levers on top of the thermostat SET LEVER control the low and high temperature for energy savings and comfort control, as shown in illustration. 1 Do NOT check operation by shorting across terminals of relay or valve coil; this will burn out the thermostat heat anticipator, which will void the warranty. I 15 69-0273-9 ~
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IMPORTANT Heating-only System 0 Turn on power to the furnace. the cooling system if outdoor temperature is 0 Push both temperaturecontrol leverstogetherat below 50°F [lO°C]. Refer to manufacturer's least 5" F [3" C] above room temperature. The recommendations. heat should comeon.Thefan will startwhen the furnace heats up. 0 Place the system switch lever at COOL and the 0 Move both levers5" F [3" C] below room temper- fan switch lever at AUTO. ature. The heat should shut off. 0 Push
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0 After checkout, reset both temperature levers to 0 Setthebluelevertothetemperature you wantfor normal comfort periods. desired temperatures. For heating season: REFER TO THE OWNERS MANUAL FORM 69- [? Move the blue lever to the energy savings 0333FOR OPERATING AND PROGRAMMING INSTRUCTIONS. temperature you want when you are sleeping or your home is not occupied. 0 Setthered levertothetemperature you want for normal comfort periods. IF YOU HAVE OUESTIONS REGARDING THE INSTALLATION OF TH
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Honeywell Helping You Conlrol Your World Residential and Residential and Building Controls Division Building Controls Division Honeywell Inc. Honeywell Limited-Honeywell Lunltke 740 Ellesmere Road 1985 Douglas Drive No. Scarborough, Ontario Golden Valley, MN 55422 M1P 2VY
