Page 12 of 22 Rev: 9/30/2011 1:26 PM
Installation
CAUTIONS AND WARNINGS
Read and understand these instructions before installing and retain them for future reference.
IMPORTANT!
If you are not knowledgeable about, and comfortable with, HVAC circuitry, you should have a qualified HVAC professional install
TempLinc for you.
Tools Needed
-
Flat blade screwdriver
-
Wire cutter / stripper
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.
1) Make sure your Heater/Air Conditioner is working properly before beginning installation of the
thermostat
2) Carefully unpack the thermostat. Save the screws, bracket and instructions
3) Turn off power to the Heating/Air Conditioning system at the main fuse panel. Most residential system
have a separate breaker for disconnecting power to the furnace
4) Remove the cover of the old thermostat. If it does not come off easily check to see if it is mounted
with screws.
5) Loosen the screws holding the thermostat base or subbase to the wall, and lift away
6) Disconnect the wires from the old thermostat. Tape the ends of the wires as you disconnect them,
and mark them with the letter of the terminal for easy reconnection to TempLinc.
7) Keep the old thermostat for reference purposes, until you new thermostat is functioning properly
Wire Connections
If the terminal designations on your old thermostat do not match those on TempLinc, refer to the chart
below or the wiring diagram that follows.
Wires from old
thermostat terminal
Function
Install on TempLinc
connector
Common 24V
24V COM
Power 24V
24 RH
Power 24V
24 RC
Heat
1 W1
Heat 2
W2
Fan G
Cooling
1 Y1
Cooling 2
Y2
