Carrier TP -NRH- Manuals

3 INSTALLATION Installation Notes: d The maximum wire size to be used in the installation is22AWG (0.50mm2) with 0.8mm insulation d No part of the control should be installed directly outdoors orin a cabinet outdoors d The control assembly base should be mounted before wires are attached Thermostat ...

4 d Close to or in direct airflow from supply registers and return--air registers. d In areas with poor air circulation, such as behind a door or inan alcove. Compatible Systems Your Carrier Côr thermostat works with most centralized residentialheating and cooling systems.Heating: up to 2 stages Coo...

5 Terminal Descriptions G Fan Rc Cool transformer Rh Heat transformer O/B Heat pump reversing valve Y/Y1 Used for first stage of conventional A/C or first stage of heat pump compressor Y2 Used for second stage of conventional A/C or second stage of heat pump compressor W W1, W2: Used for 1 -- 2 stag...

6 Items Included In Box A14494 Fig. 1 -- Carrier Côr r Thermostat A14495 Fig. 2 -- Small Backplate NOTE : The Mounting Plate (center) is removable for both backplates.

8 Items Included In Box (Cont.) A14498 Fig. 5 -- Installation Instruction, Quick Start Guide, and Wire Labels Items You Will Need A. Phillips screwdriverB. Drill for drilling holes for the mounting anchors with a 3/16” drill bit. Before You Start Review the all the instructions before you start to e...

9 Step 1. Power Off the HVAC System ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in injury or death.Before installing thermostat, turn off all power to equipment. There may be more than one power disconnect. ! WARNING Power off the HVAC system either by a switch at the ind...

10 Step 2. Remove Existing Thermostat Remove the cover from your old thermostat. Most snap off easily but some may be attached by screws. Note: If the old thermostat has 110/120V wires connected to the thermostat, it is a high voltage system and is not compatible with thisthermostat.Look at the wire...

11 Discard any jumper wires between Rh, Rc, or R. This thermostat doesnot need them. They are jumpered internally.When done, remove the old thermostat base by unscrewing it from the wall. Be careful not to let any wires fall back into the wall.Discard or recycle old thermostat. ENVIRONMENTAL HAZARD ...

12 Installing the optional large backplate If the small backplate doesn’t cover the marks left by the previous thermostat, attach the larger backplate instead.Remove the center piece from the small backplate by gently pushing the snap and pulling toward you.Insert the center piece into the large bac...

14 Step 4. Connect the Wiring The wires from the wall should plug easily into the terminal blocks. Adjust length and routing of each wire to reach proper terminal andconnector block on mounting base with 1/4--in. (6 mm) of extra wire. Strip only 1/4 in. of insulation from each wire to prevent adjace...

16 System wiring diagrams covered are: d Conventional heating and cooling systems d Heat pumps (air or geothermal) d Boilers or radiant heat systems d Accessory devices: dehumidifiers, humidifiers, or ventilators Attach thermostat Push any excess wires back into the wall, and connect the thermostat ...

17 TROUBLESHOOTING If your thermostat does not power on, please check the following: 1. Check that all wires are properly inserted into the terminal blocks at the thermostat. Tug lightly on the wires to ensure they are not loose. 2. Ensure you turned the power back on to the equipment either the swi...

18 WIRING DIAGRAMS The following pages provide wiring diagrams for common HVACequipment configurations. Single Stage Cooling and Heating System AC Y C Furnace Y W R C G Rc G Y/Y1 W/W1 (AUX1) O/B ACC– ACC+ W2 (AUX2) Y2 C R H A14502 Fig. 9 -- Air Conditioner-- Single Stage (Heat / Cool)

19 WIRING DIAGRAMS (Cont.) Furnace Two Stage Cooling and/or Heating System AC Y1 Y2 C Furnace Y1 Y/Y2 W1 W2 R C G Rc G Y/Y1 W/W1 (AUX1) O/B ACC– ACC+ W2 (AUX2) Y2 C R H R A14502B Fig. 10 -- Air Conditioner-- Two Stages each (Heat / Cool)

20 WIRING DIAGRAMS (Cont.) Heat Pump Fan Coil or Furnace Single Stage Heat Pump and Auxiliary Heat W2 O/B Y R C W O/B* Y G R C Rc G Y/Y1 W/W1 (AUX1) O/B ACC– ACC+ W2 (AUX2) Y2 C R H * Connect to O/B terminal on furnace ir fan coil, if available A14503 Fig. 11 -- Heat Pump (Air or Geothermal) With Au...

21 WIRING DIAGRAMS (Cont.) Heat Pump Fan Coil or Furnaces Stage 2 Heat Pump and Auxiliary Heat W2 W1 O/B Y1 Y2 R C W1 O/B* W2 Y1 G Y/Y2 R C Rc G Y/Y1 W/W1 (AUX1) O/B ACC– ACC+ W2 (AUX2) Y2 C R H * Connect to O/B terminal on furnace ir fan coil, if available A14503B Fig. 12 -- Heat Pump (Air or Geoth...

22 WIRING DIAGRAMS (Cont.) Air Conditioneror Heat Pump Boiler Stage 2 Heat and Cool (If Applicable) *Reversing Valve for Heat Pumps Only Rc G Y/Y1 W/W1 (AUX1) O/B ACC– ACC+ W2 (AUX2) Y2 C R H Y1 Y2 R C G Y2 Y1 C O/B* W1 W2 R Air Handler O/B R W1** **Do not connect W1 at HP (set enabled w/ defrost) A...

23 WIRING DIAGRAMS (Cont.) Accessory Devices The thermostat can control an accessory HVAC device like a humidifier, dehumidifier, or ventilation device from its dry contactACC terminals (The ACC terminals do not provide 24V AC output).If the accessory is internally powered, connect the 24V to ACC+. ...

24 Approvals This product was designed and built in accordance to RoHS directive 2002/95/EC and contains no hazardous substances as defined by thisdirective. FCC Compliance Commission (FCC) Compliance Statement: This equipment has been tested and found to comply with the limitsfor a Class B digital ...

26 2. this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’Industrie Canadaapplicable aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes: 1. l’appa...