Honeywell CT1501 Electromechanical Fuel Saver Thermostat Instruction Manual

Honeywell CT1501 Electromechanical Fuel Saver Thermostat Instruction Manual

THERMOSTAT FEATURES

I-Front of thermostat.

Il-Hinged cover lifted.

Ill-Cover removed.

PREPARATION

Thermostat must be mounted on wallplate or subbase included in package to assure operation.

Assemble tools required, as illustrated

If wallplate or subbase is mounted on a vertical outlet box (check old installation), order 196393A Cover Plate and Adapter Ring (see appropriate figure under step 4). Call Honeywell Consumer Services (1 -800-468-1 502) for ordering information, Monday-Friday, 7:30 a.m. to 500 p.m. Central time. Test to make certain that your heating and cooling systems are working. If either one does not work, contact your local heatingfair conditioning dealer.
NOTE : Do not operate cooling system if outdoor temperature is below 50′ F [loo C]. Turn off power to the heatingfcooling System at the main fuse panel.

UNPACK THERMOSTAT

• Remove and discard shipping wrap. Save
• Remove thermostat cover by lifting up from the bottom.
• Carefully remove insert protecting switch 0 bulbs.
• Loosen two captive mounting screws, and 0 separate wallplate or subbase from back of thermostat base.

REMOVE OLD THERMOSTAT

• Remove cover of old thermostat. If the cover 0 doesn’t snap off when pulled firmly from the bottom, check for a screw that locks the cover on.
• Before removing the old thermostat from the 0 wall, look at it carefully to locate the heat anticipator adjustment mechanism. (See illustration to help you recognize the heat anticipator.) Make a note herellof that anticipator setting for future reference. If your thermostat does not have a heat anticipator, do not be concerned. Move on to next paragraph.
• Loosen screws holding thermostat to wallplate, subbase or wall and lift away.
  

One or two extra wires?
If you are replacing a Honeywell Chronotherm thermostat, you may find one or two wires that go to the clock terminals on the Chronotherm thermostat wiring wallplate. Do not allow them to touch, or you may damage your transformer. Disconnect the wires, and wrap them separately, using electrical tape. Do not wrap them together. Place the wires where they will not interfere with the operation of the new thermostat. Record the colors and terminal designation labels of the rest of the wires.

MOUNT WALLPLATE OR SUBBASE

WIRE WALLPLATE OR SUBBASE

NOTE: All wiring must comply with local electrical Refer to illustration and strip thermostat wire insulation as necessary.

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND Wlll OVERLOAD PROTECTION AS REOUIRED.

• Connect either wire to R terminal and the other wire to W terminal. Firmly tighten screws.
• Push excess wire back into wall, and plug 0 hole In wall with nonflammable Insulation to prevent drafts from affecting thermostat operation.

NOTE: If there are four wires, connect wire marked R to terminal RH and add a jumper wire to connect to RC. If RC is left unconnected, the air conditioner will not turn on. The 4-wire drawing on this page shows how to jumper RC to RH. Strip the insulation off the wire where if connects to the terminals. Firmly tighten screws.

If the labels do not agree with the terminal

• Refer to Table 2 on page 8
• Determine correct hookup from the listed control function and the equipment control circuit

OLDSUBBASE TERMINAL
Push excess wire back into wall. and plug hole in wall with nonflammable insulation to prevent drafts from affecting thermostat operation.
CONTROL FUNCTION
Heating transformer power to control circuit Cooling transformer power 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

SINGLE STAGE HEAT PUMP (WITHOUT AUXILIARY HEAT) SYSTEM

IFCOMPRESSOR ISCONNECTEDTO OLDTHERMOSTATS “YTERMINAL WITH A JUMPERTO”W, USE NEW THERMOSTATS “PTERMINAL FORCOMPRESSOR. IFOLOTHERMOSTATHAS ONE WIRETO”Y”AND0NE TO “W. USt’Y AND “W’ON NEW THERMOSTAT, DO NOT USE”P. IMPORTaNT- IF OLD THERMOSTAT USES A W2 (AUXILIARY OR EMERGENCY HEAT) TERMINAL, THIS THERMOSTAT MAY NOT BE USED THIS THERMOSTAT IS NOT DESIGNED TO CONTROL AUXILIARY HEAT

For CT1503 750-millivolt heating

Connect either wire to R terminal and the other wire to W terminal. Firmly tighten screws. Push excess wire back into wall, and plug 0 hole in wall with nonflammable insulation to prevent drafts from affecting thermostat operation.

MOUNT THE THERMOSTAT

Do NOT cycle heating system until Step 7 is completed.

SET HEAT ANTICIPATOR LEVER

NOTE: Not applicable on CT1503 millivolt model. The thermostat’s adjustable heat anticipator 0 must be correctly set to accurately control the on-time length of the system. An incorrect setting can result in room temperature swings or burn out the anticipator and void the thermostat warranty. Make sure you have the current draw (anticipator setting) for your system. This is the number you wrote in the box in Step 3 If you were unable to find the current draw for Step 3, this information can be found printed on the primary control at the furnace or boiler. The primary control is usually a gas valve a relay or burner controi box, Aquastat controller or zone valve with the thermostat wires connected to it These controls are usually located behind the furnace cover See next illustration

INSTALL TIMER F BATTERIES

SET TIMER

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.

ATTACH THERMOSTAT COVER

Stat base have been removed. as explained in step 3 Place the two tabs on upper edge of cover into mounting slots in thermostat base Swing cover downward until it engages atch at bottom of base

CHECK OUT THERMOSTAT OPERATION AND SET TEMPERATURE CONTROL b LEVERS

The two levers on top of the thermostat control the low and high temperature for energy savings and comfort control, as shown in illustration

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.

Heating-only System
Turn on power to the furnace. Push both temperaturecontrol leverstogetherat least 5″ F [3″ C] above room temperature. The heat should comeon.Thefan will startwhen the furnace heats up. Move both levers5″ F [3″ C] below room temperature. The heat should shut off. Operate the entire heating system for at least one complete cycle.

References

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