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11

wire Extender Installation Guide

General features

The Wire Extender kit is used for an existing thermostat 

installation that does not contain a common wire.  The kit will 

enable this Programmable Thermostat to work with the existing 

wiring.

Terminal
wire Size:

 22-14AWG

Voltage: 

 18 to 30VAC, 50Hz, or 60Hz

Input terminal: 

 RC, RH, Y, W, C, G

Input current Consumption:

  30mA at 24VAC when W & Y are active

Output terminal:

  RC, RH, Y, W, C, G

Output current rate: 

 2Amps per terminal

Installation and wiring

1.  Mount the accessory at or 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 thermostat 

wired (either the “W” or “Y”) to connect to opposite side of the 

Diobe Pair.  This thermostat wire should be connected to the 

“W” or “Y” terminal of the accessory, and the two terminals are 

shorted by a jumper wire on the Accessory.

4.  The leftover wire from the above step (either the “W” or “Y” 

depending on which was used for the Diable Pair) will now be 

used for the “C” wire.

5.  The “G” is direct connected from the thermostat to the 

equipment.  If the “G” wire is not available, do not connect this 

wire.

PCB assembly inside

Diode pair

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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