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7

2H2C or 3H2C Heat Pump Testing

1.   Hold the MENU button and then press the Reset pinhole.  

When INSTALLATION MODE is displayed, release the MENU 

button.  All outputs shall be turned off.

2.   “HVAC: Heat Pump <0>” indicates you set the changeover 

value to 0.   “HVAC: Heat Pump <B>” indicates you set the 

changeover value to B.  If it is incorrect, please review the 

positions of switch SW1.

 3.   “STAGE” should be highlighted.  Press the UP or DOWN button 

to select “2H2C”.

4.   Press the NEXT button to highlight “FAN”.  Press the UP or 

DOWN button to toggle the FAN output (ON/OFF).  After testing 

the FAN output, keep it in the ON setting to test other outputs.

5.   Press the NEXT button to highlight “COOL: Stage 1”.  Press the 

UP or DOWN button to toggle the COOL Stage 1 output (ON/

OFF).

6.   Press the NEXT button to highlight “COOL: Stage 2”.  Press the 

UP or DOWN button to toggle the COOL Stage 2 output (ON/

OFF).

7.   Press the NEXT button.  All cool outputs will be turned off.  The 

fan output will remain in its current state.   “HEAT: Stage 1” is 

highlighted.  Press the UP or DOWN button to toggle the HEAT 

stage 1 output (ON/OFF).

8.   Press the NEXT button to highlight “Stage 2”.  Press the UP or 

DOWN button to toggle the Heat Stage 2 output (ON/OFF).

9.   Press the NEXT button to highlight “AUX”.  Press the UP or 

DOWN button to toggle the Auxiliary Heating output (ON/OFF).

10.  Press the NEXT button to highlight “EMER”.  Press the UP or 

DOWN button to toggle the EMERGENCY output (ON/OFF).  

11.  Press the Reset pinhole to exit INSTALLATION MODE.

Summary of Contents for PROGRAMMABLE THERMOSTAT

Page 1: ...49 50274 03 11 GE PROGRAMMABLE THERMOSTAT Installation Instructions...

Page 2: ...ressive cleaning agents NOTICE This device shall only be used for its intended purpose as described in this Owner s Manual If this is a new installation locate the thermostat 4 to 5 feet above the flo...

Page 3: ...Heat 2 Stage Cool Heat Pump System 3 Refer to the wiring diagrams to determine the number of wires necessary to install this thermostat 4 Ensure the power to the air conditioning or heating system is...

Page 4: ...4 On thermostat body locate switch SW1 on thermostat circuit board 15 Set switch SW1 2 to HP for heat pump system or STD for conventional or Standard system For heat pump system set switch SW1 1 to E...

Page 5: ...n to highlight COOL Stage 1 Press the UP or DOWN button to toggle the COOL Stage 1 output ON OFF 5 Press the NEXT button to highlight COOL Stage 2 Press the UP or DOWN button to toggle the COOL Stage...

Page 6: ...s the UP or DOWN button to toggle the FAN output ON OFF After testing the FAN output keep it in the ON setting to test other outputs 5 Press the NEXT button to highlight COOL Stage 1 Press the UP or D...

Page 7: ...the NEXT button to highlight COOL Stage 1 Press the UP or DOWN button to toggle the COOL Stage 1 output ON OFF 6 Press the NEXT button to highlight COOL Stage 2 Press the UP or DOWN button to toggle t...

Page 8: ...ommon for control circuit and ther mostat power input G FAN Y 1st stage cooling 1st stage compressor Y2 2nd stage cooling 2nd stage compressor W 1st stage heating Auxiliary heating W2 E 2nd stage heat...

Page 9: ...Valve Aux Hea ng Emergency Emergency relay Auxiliary hea ng relay 1st Compressor Relay 2nd Compressor Relay Fan relay AC_ IN Power Supply AC_ IN MCU 1st Compressor 2nd Compressor Jumper Wire FAN FAULT...

Page 10: ...TING 1st HEATING 2nd HEATING Transformer 2nd hea ng relay 3rd hea ng relay 1st cooling relay Fan relay AC_ IN Power Supply AC_ IN 1st Cooling 2nd Cooling Jumper Wire FAN 24VAC Heat Cool 2nd cooling re...

Page 11: ...nearby the equipment strip 2 Label each wire to be connected eg RH RC C Y W G 3 The two leads of the Diobe Pair are connected to thermostat terminals Y to Y W to W Select one of the existing thermost...

Page 12: ...RH terminals The connection is shown below THERMOSTAT R C Y W D4 D3 Diode pair Jumper wire Add a wire for 4 wires system Jumper wire 1N4007T 1N4007T G RC STAT ACCESSORY EQUIP EQUIPMENT RH C RC RC C R...

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