Honeywell Thermostat Y460A2003 User Manual

The Round Creative Series Thermostat Y460A2003 Thermostat is for 15 to 30 Vac control gas or oil fueled warm air steam or hot water cooling systems Y460A Thermostat these instructions step by step for proper of your Honeywell thermostat It is that as you read understand and each step you check it off with a pencil pen PREPARE FOR INSTALLATION the following required tools screwdriver hand or power drill with in 4.8 mm drill bit wire cutter stripper or sharp bubble level or plumb bob and line BLADE OR POWER WITH 1 16 INCH BIT IF NEEDED TO HOLES IN WALL CUTTER STRIPPER OR SHARP IF NEEDED TO STRIP WIRES TAPE IF NEEDED LABEL WIRES AS THEY DISCONNECTED FROM THERMOSTAT LEVEL OR PLUMB BOB AND LINE TO LEVEL FOR ACCURATE OPERATION 835 cooling systems do not operate cooling if temperature is below 50 10 your heating and or cooling systems to be sure are working especially if they have been for any length of time If either system not work contact your local heating air dealer for assistance MANUAL off power to the system at the main fuse circuit breaker panel Most buildings have a switch box or circuit breaker for dis power to the furnace UNPACK YOUR THERMOSTAT Carefully unpack your new thermostat Remove and discard the shipping wrap be sure to the screws and the instructions Remove the thermostat cover and set it aside to use Remove the red plastic insert that holds the mercury in place REMOVE YOUR OLD Remove the cover of the old thermostat If the cover not snap off when pulled firmly from the look for screw s to loosen to unlock the removing old thermostat the wall look it carefully to the heat Look the illustration to you recognize heat Make a here of that anticipator for use in Step 7 The heat anticipator pointer adjustable will be set at one of a series of numbers the electrical current rating of the control in your furnace 2 4 8 etc or 0.2 0.8 etc If no heat anticipator indication is go on to the next step screw s holding the thermostat base to the or wall and lift it away LEVER U S Registered Trademark 1999 Honeywell Inc cid 127 cid 127 All Rights Reserved 1358 ROUND CREATIVE SERIES Y460A2003 THERMOSTAT Disconnect wires from old thermostat or Wrap the around a pencil or object as shown prevent them from back into the wall THROUGH OPENING BOX As you disconnect each wire use masking to tape the end and label with the letter of terminal designation to allow easier recon to the new subbase the old thermostat for reference until your new is functioning correctly NOTICE this control is replacing a control that contains in a sealed tube do not place your old in the trash Dispose of it properly your local waste management authority for regarding recycling and the proper disposal the old thermostat If you have questions call the Customer Response Center at 1 800 468 MOUNT THE SUBBASE your thermostat about 5 ft 1.5m above floor in an area with good air circulation at temperature Do not install it where it be affected by or dead spots behind doors and in or cold air from ducts heat from sun or appliances pipes and chimneys uncooled areas such as an outside behind the thermostat the thermostat cable through the subbase hole the subbase to the wall or outlet box with the screws as shown in the illustration 3 Q539 SUBBASE FOR HEAT AND OR COOL WITH SWITCHING 3 Q539 SUBBASE FOR HEAT AND OR COOL WITH SWITCHING the screws after using a spirit level or plumb to accurately level the subbase It must be level maintain accurate calibration LINE 2 FOR PLUG INSULATION 3 3 WIRE THE SUBBASE the instructions provided by the heating or equipment manufacturer If not refer to the thermostat wiring diagram All wiring must comply with local electrical and ordinances the Subbase Refer to the illustration to strip the thermostat wire from the wire where it connects to the as necessary Refer to the labels you placed on the wires when you the old thermostat Match the letter of your thermostat wire with the corresponding terminal on your new thermostat Connect the wires to the matching terminals on the If your old thermostat had an R terminal your new one has RC and RH terminals the old wire R to terminal RH and add a piece of wire to use as a jumper to connect RC RH The drawing shows how to jumper RC to RH ROUND CREATIVE SERIES Y460A2003 THERMOSTAT MOUNT YOUR THERMOSTAT FOR RC TO RH STRIP WIRE LONG ENOUGH TO BOTH TERMINALS the heat anticipator indicator to 1.2 before to prevent the anticipator from burning out installation tighten the screws the excess wire back into the wall the hole with nonflammable insulation to drafts from affecting the thermostat for heating cooling system using separate RC terminals If old thermostat has single R terminal to jumper drawing in Subbase Wiring procedure SUITABLE FOR POINT MOVE INDICATOR OR COIL SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD AS REQUIRED HEATING THE FAN IS CONTROLLED BY ANOTHER CONTROLLER AS A HONEYWELL L4064 FAN AND LIMIT CONTROLLER OR TIMER 1004 4 50 60CY AMP 60CY the thermostat over the subbase and tighten three captive mounting screws see Step 4 captive mounting screws complete the connections to the thermostat SET HEAT ANTICIPATOR sure the thermostat adjustable heat anticipator is correctly to accurately control the temperature incorrect setting if too high can result in wide temperature swings or if too low burn out the which voids the thermostat warranty Make sure you have the current draw anticipator for your system This is the number you in the box in Step 3 If you were unable to find current draw for Step 3 this information can be printed on the primary control at the furnace or The primary control is usually a gas valve a or burner control box Aquastat Controller or valve with the thermostat wires connected to it controls are usually located behind the cover see the illustration BURNER CONTROL MAIN SUPPLY Vac 50 60 Hz AMP VALVE GAS VALVE the current rating is still unavailable Remove the W wire from the subbase Connect one probe of an ac ammeter 0 to 2.0A example to the W wire and connect the other to the W terminal ROUND CREATIVE SERIES Y460A2003 THERMOSTAT Let the system operate through the ammeter for least one minute before taking a r