Related Manuals for TOTALINE P374-2300FM
Summary of Contents for TOTALINE P374-2300FM
- Page 1 DIGITAL THERMOSTAT MODEL P374-2300FM Installation Instructions HEAT I2:00 COOL AUTO & HEAT PUMP MULTI-STAGE PROGRAMMABLE TOTALINE Replacement Components Division Carrier Corporation 11/98...
-
Page 2: Table Of Contents
THE OLD THERMOSTAT AND INSTALLING WARNING THE NEW THERMOSTAT. Replacement Components Division - Carrier Corporation Model No. P374-2300FM This device complies with Part 15 of the FCC rules. Operation is subject to the following 2 conditions: (1) This device may not cause harmful interference,... -
Page 3: Preparation
STEP #1 PREPARATION Proper installation of the thermostat will be accomplished by following these step by step instructions. If you are unsure about any of these steps, call a qualified technician for assistance. Assemble tools & recommended Junction Box. FLATSTAT FlatStat EXTENDS in Small... -
Page 4: Remove Old Thermostat
STEP #2 REMOVE & REPLACE OLD THERMOSTAT Remove the cover of the old thermostat. If it does not come off easily check for screws. Loosen the screws holding the thermostat base or subbase to the wall, and lift away. Disconnect the wires from the old thermostat. -
Page 5: Install Wire Connector
STEP #3 WIRE CONNECTIONS If the terminal designations on your old thermostat do not match those on the new thermostat, refer to the chart below, or the wiring diagrams that follow. Install on the Wire from the new thermostat old thermostat Function connector marked terminal marked... -
Page 6: Wiring Diagrams
Sample Wiring Diagrams 5 Wire, 1 Stage Cooling, 1 Stage Gas Heat Residential Gas or Electric Heat *, Electric Cool, split systems & package units Thermostat 24 vac common fan relay compressor relay 1st stage heat circuit 24 vac return * If using electric heat this option must be selected on during advanced setup. - Page 7 Sample Wiring Diagrams 6 Wire, 2 Stage Cooling, 1 Stage Heat Residential 2 Stage Cooling, with Gas or Electric Heat* Thermostat 24 vac common fan relay compressor relay 1st stage heat circuit 24 vac return 2nd stage compressor relay * If using electric heat, this option must be selected during advanced setup.
- Page 8 Sample Wiring Diagrams Commercial Gas or Electric Heat ***, 7 Wire, 2 Stage Cooling, 2 Stage Heat Electric Cool, split systems & package units including Commercial Heat Pumps ** Thermostat 24 vac common fan relay compressor relay 1st stage heat circuit 24 vac return 2nd stage compressor relay 2nd stage heat circuit...
-
Page 9: Calibration
Sample Wiring Diagram 6 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump * Most residential split and package heat pumps with auxiliary heat Thermostat 24 vac common fan relay compressor relay 1st stage heat circuit 24 vac return 2nd stage heat circuit * The heat pump option must be selected on during advanced setup. -
Page 10: Test Operation
STEP #4 TEST OPERATION Turn the power on to the Heating/Air Conditioning system. Press the MODE button repeatedly until the HEAT icon appears on the display. Press the up/down buttons until the set temperature is 10 degrees above room temperature. The furnace should turn on. Press the MODE button repeatedly until the COOL icon appears on the display. -
Page 11: Troubleshooting
TROUBLESHOOTING SYMPTOM: When using 4 wires (R, G, W, Y), the air conditioning equipment tries repeatedly to turn on, but cannot. At times the display dims or disappears. CAUSE: There is not enough power available to "power share". REMEDY: Connect a 270 ohm, 10 watt power resistor at the furnace as shown below. - Page 12 "conventional" (non heat pump) system. REMEDY: Consult the Owner's Manual in the Advanced Setup section to turn off the heat pump. FlatStat P374-2300FM Tested to Comply with FCC Standards FOR HOME OR OFFICE USE 4Z95 P/N 88-117 Page 11...
Need help?
Do you have a question about the P374-2300FM and is the answer not in the manual?
Questions and answers