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INSTALLATION
INSTALLATION
INSTRUCTIONS
INSTRUCTIONS
HEAT
HEAT
COOL
COOL
Control up to 2 Heat &
1 Cool Stages
Backlit Display & Button
Legends
Aux Heat Indicator
Outdoor Sensor Ready
Accepts EZ Programmer
Accepts Optional IR
Remote Control
Use with most Air Conditioning & Heating Systems including: 1 Stage Electric
Cooling & 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
TOTALINE
Signature
Replacement Components Division
RESIDENTIAL
RESIDENTIAL
THERMOSTAT
THERMOSTAT
P/N P/N P374-
P374- 1700
1700
HEAT
HEAT
PUMP
PUMP
1-DAY
PROGRAMMABLE
DIGITAL THERMOSTAT
CONFIGURABLE IN SETUP:
CONFIGURABLE IN SETUP:
Auto or Manual Changeover
Programmable or Non-
Programmable
Carrier Corporation 08/05
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Summary of Contents for TOTALINE P374-1 700
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Page 1: Installation Instructions
Accepts EZ Programmer Accepts Optional IR Remote Control Use with most Air Conditioning & Heating Systems including: 1 Stage Electric Cooling & 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. TOTALINE Signature Replacement Components Division Carrier Corporation 08/05... - Page 2 TOTALINE CAUTION Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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Page 4: Table Of Contents
Table of Contents Table of Contents TOTALINE Preparation Remove & Replace the Old Thermostat Wire Connections Sample Wiring Diagrams Test Operation Calibrating the Thermostat Sensors TroubleShooting Page... -
Page 5: Preparation
SECTION 1 Preparation Preparation TOTALINE 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 Flat Blade Wire cutter Screwdriver &... -
Page 6: Remove & Replace The Old Thermostat
SECTION 2 Remove & Replace the Old Thermostat Remove & Replace the Old Thermostat TOTALINE 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. -
Page 7: Wire Connections
SECTION 3 Wire Connections Wire Connections TOTALINE 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. Wire from the Install on the... -
Page 8: Sample Wiring Diagrams
SECTION 4 Sample Wiring Diagrams Sample Wiring Diagrams TOTALINE Section 4 Contents: HVAC Equipment Wiring....4.2 Remote Sensor Wiring....4.6 Page 4.1... - Page 9 TOTALINE 6 Wire, 1 Stage Cooling, 1 Stage Heat Residential & Commercial 1 Stage Cooling, Commercial Heat Pump 1 Stage Cooling with 1st stage Gas Heat with 2 Stage Heat W1/O/B RS+5 RSGND ELEC 6 Conductor 18 gauge ELEC unshielded cable from the thermostat to the equipment.
- Page 10 TOTALINE 6 Wire, 1 Stage Cooling, 1 Stage Heat Residential & Commercial 1 Stage Cooling, with 1st stage Electric Heat W1/O/B RS+5 RSGND ELEC 6 Conductor 18 gauge ELEC unshielded cable from the thermostat to the equipment. RS+5 RSGND 24 vac common...
- Page 11 TOTALINE 6 Wire, 1 Stage Cooling, 2 Stage Heat Residential Heat Pump with O Reversing Valve 1 Stage Cooling, with 2 stage Heat W1/O/B RS+5 RSGND ELEC 6 Conductor 18 gauge ELEC unshielded cable from the thermostat to the equipment.
- Page 12 TOTALINE 6 Wire, 1 Stage Cooling, 2 Stage Heat Residential Heat Pump with b Reversing Valve 1 Stage Cooling, with 2 stage Heat W1/O/B RS+5 RSGND ELEC 6 Conductor 18 gauge ELEC unshielded cable from the thermostat to the equipment.
- Page 13 TOTALINE Wired Remote Sensor W1/O/B 2 conductor 18 gauge unshielded cable from the thermostat to the RS+5 remote sensor. RSGND RS-GND Optional Outside RS+V Sensor Page 4.6...
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Page 14: Test Operation
SECTION 5 Test Operation Test Operation TOTALINE 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 or Down buttons until the set temperature is 10 degrees above room temperature. -
Page 15: Calibrating The Thermostat Sensors
SECTION 6 Calibrating the Thermostat Sensors Calibrating the Thermostat Sensors TOTALINE Under normal circumstances it will not be necessary to adjust the calibration of the temperature and humidity sensors. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure. -
Page 16: Troubleshooting
SECTION 7 TroubleShooting TroubleShooting TOTALINE SYMPTOM: The air conditioning does not attempt to turn on. CAUSE: The compressor timer lockout may prevent the air conditioner from turning on, for a period of time. REMEDY: Consult the Owner's Manual in the Setup section to defeat the cycles per hour and compressor timeguard. - Page 17 TroubleShooting TroubleShooting TOTALINE SYMPTOM: When controlling a residential heat pump, and asking for cooling, the heat comes on. CAUSE: The thermostat reversing valve jumper is set for “b”. REMEDY: Set the reversing valve jumper for “O”. See pages 5.4 and 5.5.