Page 1
Install guide 6020 HE AT Caution • Your thermostat is a precise instrument, handle it with care. • Turn off electricity to the appliance before installing or servicing thermostat or any part of the system. • Do not turn electricity back on until work is completed.
Page 2
Install guide 6020 To avoid electrical shock and to prevent damage to the furnace, air conditioner, Caution and thermostat, disconnect the power supply before beginning work. This can be done at the circuit breaker, or at the appliance. You will need a small Phillips screwdriver and possibly a drill Tools with 3/16-in.
• Fill wall opening with non-combustible insulation to prevent drafts. Prepare wires • You will need at least 2.6" of wire for each of your connections to the 6020. 2.6" • If you do not have enough wire, splice additional wire to allow enough slack.
• Wires will dress behind the 6020 and up over the terminal area. • Use the Step-By-Step diagram as your guide. • Do not bunch wires behind 6020. Feed slack back into the wall opening. • Connect labeled wires only to a terminal with corresponding letter.
Page 5
Find the set-up diagram for your system • Find the referenece page with your wiring C W RH Go To Page 15 diagram and jumper set-up information. F r o m 2 Wire F u r n a c e Remember, the C wire is optional.
Page 6
Mount the 6020 Wall 6020 • Hold the 6020 against the wall, with the wires coming over the top above terminal block. The 6020 will cover the hole in the wall. • Position 6020 for best appearance. Use the optional stand- offs if more space for wires is needed behind the 6020.
NOTE: If you have labeled your wires, follow the correct Step-By-Step, and these Check procedures do not operate your system call support at 1-877-505-2353 Congratulations, you have successfully installed your unit. Please proceed to the OPERATING Guide to initialize the 6020.
To change the calibration: Remove the top cover. Locate the calibration switch and slide it to the ON position. The current calibration factor (+/-) of the 6020 will appear in the LCD display. Calibrate Push the UP or DOWN arrows until the desired calibration switch factor is reached.
Page 9
STEP 1 - Connect the R (or RH) wire to the RH terminal on the 6020. This connects to the Heater Power . STEP 2 - Connect the W wire to the W terminal on the 6020. This connects the heater control line to the 6020.
Page 10
STEP 1 - Connect the W wire to the W terminal on the thermostat. This connects to the heater control line. STEP 2 - Connect the Y wire to the Y terminal on the 6020. This connects to the Cooler compressor.
Page 11
5 Wire Heat Pump w/ Aux Heat STEP 1 - Connect O wire to the O terminal or B wire to the B terminal on the 6020. (If you have both O and B -connect O wire to O terminal DO NOT connect B to B terminal - see pg 24 Trane for B wire terminal) STEP 2 - Connect the W2 wire to W2 on the 6020.
Page 12
Step 1 - based on your valve type Motor driven Valve- Connect the R (or RH) wire to the RH terminal on the 6020. Connect the W wire to the W terminal on the 6020. Connect the remaining wire to the A terminal.
6020 Features The 6020 can be used with most 24 volt gas, oil or electric heating and air conditioning systems, heat pumps or gas millivolt heating systems. It cannot be used with 120 volt heating systems. Ask The Home Depot for other thermostats to control those systems.
Solenoid Valves W or W1 Y (the 3rd wire) W Jumper Reference 1 2 3 4 5 6 7 Configuration jumpers allow your 6020 to be adapted to many different HVAC control applications. RESET UNIT RESET UNIT AFTER CHANGE AFTER CHANGE...
Need help?
Do you have a question about the 6020 and is the answer not in the manual?
Questions and answers