Carrier Thermidistat Installation And Operating Instructions Manual

Contents

Carrier Thermidistat Installation And Operating Instructions Manual Manual pdf 2 page image

INSTALLATIONStep 1—Thermidistat Control LocationThermidistat Control should be mounted:• Approximately 5 ft (1.5m) from floor.• Close to or in a frequently used room, preferably on an insidepartitioning wall.• On a section of wall without pipes or duct work.Thermidistat Control should NOT be mounted:• Close to a window, on an outside wall, or next to a door leadingto the outside.• Exposed to direct light or heat from a lamp, sun, fireplace, orother temperature-radiating objects which could cause a falsereading.• Close to or in direct airflow from supply registers and return-airregisters.• In areas with poor air circulation, such as behind a door or inan alcove.Step 2—Set DIP SwitchesThere is a 4 section DIP switch within the Thermidistat Controlwhich must be properly set by the installer. It is easiest to set these4 switches before the Thermidistat Control is mounted to the wall,so STOP and complete the following steps:1. Open hinged Thermidistat Control cover.2. Remove cover completely by snapping it apart at hinge.3. Open Thermidistat Control by pressing back half of the rightend of plastic case inward while, at the same time, pullingfront and back halves apart at the right end. The 2 halves willswing apart.4. Snap hinge apart to completely separate the 2 halves.5. Switches are located in upper right corner of circuit board. Tochange switch position, use corner of a small screwdriver toslide switch to opposite position.6. After switches have been set, do not reassemble the 2 halves.The rear plastic will first be mounted to the wall.SWITCH 1—AC/HP SELECTUse this switch to select between air conditioner and heat pumpsystems.TO SET:OFF—for air conditioner installations. This is factory default.ON—for heat pump installations, using either a fan coil or furnace(dual fuel).SWITCH 2—1 SPEED/2 SPEEDThis switch tells the system whether the compressor is 1 or 2speed.TO SET:OFF—for single-speed compressor. This is factory default.ON—for 2-speed compressors, whether AC or HP.SWITCH 3—SMART/CONVENTIONAL RECOVERYSelects between conventional and smart recovery from setback.Conventional recovery changes to new set point at programmedtime. Smart recovery, which is active in both heating and cooling,starts 90 minutes earlier and smoothly adjusts set point so roomwill arrive at programmed temperature at programmed time.TO SET:OFF—for smart recovery. This is factory default.ON—for conventional recovery.SWITCH 4—INSTALLER TEST OFF/ONSelects a special installer test mode which assists with systemstartup and checkout. See Step 5, System Startup and Check-out.TO SET:OFF—for normal operation. This is factory default.ON—for installer test mode.Step 3—Install Thermidistat ControlBefore installing Thermidistat Control, turn off all power toequipment. There may be more than 1 power disconnect.Electrical shock can cause personal injury or death.1. Turn off all power to equipment.2. If an existing thermostat is being replaced:a. Remove existing thermostat from wall.b. Disconnect wires from existing thermostat, 1 at a time.c. As each wire is disconnected, record wire color andterminal marking.d. New or additional wire may be needed to accommodateadded humidity outputs.e. Discard or recycle old thermostat.NOTE: Mercury is a hazardous waste and MUST be disposed ofproperly.3. Select Thermidistat Control rear plastic. (If it is not separatedfrom the remainder of the Thermidistat Control, refer to Step2 above.)4. Route wires through large hole in rear plastic. Level rearplastic against wall (for aesthetic value only—ThermidistatControl need not be leveled for proper operation) and markwall through 2 mounting holes.5. Drill two 3/16-in. mounting holes in wall where marked.6. Secure rear plastic to wall with 2 screws and anchorsprovided. Additional mounting holes are available for moresecure mounting if needed. Make sure all wires extendthrough hole in mounting base.7. Adjust length and routing of each wire to reach properconnector block and terminal on rear plastic with 1/4-in. extralength. Strip only 1/4 in. of insulation from each wire toprevent adjacent wires from shorting together when con-nected.8. Match and connect equipment wires to proper terminals ofeach connector block. (See Low Voltage Wiring DiagramReference Chart and Figs. 1 through 28 in separate WiringDiagram literature). Remember R and C must be connectedfor proper operation.Improper wiring or installation may damage ThermidistatControl. Check to make sure wiring is correct before proceed-ing with installation or turning on power.9. Push any excess wire into wall and against rear plastic. Sealhole in wall to prevent air leaks. Leaks can affect operation.10. Reattach Thermidistat Control body to rear plastic by firstreattaching hinge.11. Close Thermidistat Control assembly, making sure pins onback of circuit board align with sockets in connector.12. Turn on power to equipment.On power up, all display segments will light for 5 sec. For the next5 sec, a 2-digit code appears on large display which identifiesThermidistat Control configuration:1. AC—for 1-speed air conditioner2. HP—for 1-speed heat pump2