TH1 23
ELECTRONIC PROGRAMMABLE THERMOSTAT FOR HEATING AND COOLING SYSTEMS
SUMMARY
TO SET TIME AND DAY
Press DAY, HOUR and MIN keys to adjust the time and day.
TO MODIFY HEATING AND COOLING PROGRAMS
•Set the function switch to HEAT position for heating programs and to COOL for cooling programs.
•Use PROG key to select the program to be modified.
•Use HOUR and MIN keys to set the time and 
or 
button to select the temperature setting.
OPERATING MODES |
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|
AUTO: |
executes the programs. or |
button shows the tem- |
|
perature setting. |
|
MAN: |
bypasses the programming. |
or changes the tem- |
|
perature setting. |
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TIMER ECONO: maintains the ECONOmic temperature setting until a user presets time and day.
ECONO REMOTE: maintains the ECONOmic temperature setting as long as an external signal is applied.
FILTER FUNCTION
Shows the number of hours that the system has operated since the last filter change. Prevents freezing during your absence.
TEMPERATURE SPAN ADJUSTMENT
Press PROG key while RETURN key is pressed in. 
or 
button changes the span setting.
INTRODUCTION
This thermostat can replace most common residential thermostats and is designed to be used with electric, gas or oil heating and air conditioning systems using 24 volts control and relay current up to 1.0 ampere.
Several useful functions and operating modes have been incorporated to adapt a variety of customer needs: besides all the features associated with the state of the art programmable thermostat, you’ll find on TH123:
•a 7 day timer to set the ECONO mode during a prolonged absence.
•a signal entry to remotely control the ECONO mode.
•a protection against freezing.
•a filter supervision.
•a programmable regulation sensibility (SPAN).
To protect the compressor from damage and wear by cycling on and off too rapidly, the TH123 incorporates a minimum five (5) minutes delay between cooling cycles.
If you have any questions concerning the installation or programming of the thermostat, please call our technical assistance at 1-800-831-AUBE or for the Montreal area, (450) 358-4600 from 8:30 AM to 5:00 PM, Monday through Friday, Eastern time.
INSTALLATION
This thermostat has been designed for simple and quick installation requiring only a few tools.
REQUIRED MATERIAL
•Hammer
•Masking tape
•Drill and 3/16” drill bit
•Phillips screwdriver
REMOVING YOUR OLD THERMOSTAT
WARNING: To avoid electric shock, turn off the power of the heating and cooling system at the main power box in your home.
Read the following instructions carefully before disconnecting the wires.
n Turn off your old thermostat.
oRemove the cover from the old thermostat. You may have to pull extra hard.
p Unscrew the old thermostat from the wall plate
qNow find the screws attaching the wall plate to the wall, and remove them. You should now be able to pull the wall plate a small distance from the wall. Do not disconnect any wires yet, simply locate the wires.
Note: If your old thermostat has only two (2) wires connected to it (heating system only), simply disconnect the two wires from the wall plate, skip over steps 1 and 2 in the Wire labelling section and go on to step 3.
WARNING: After removing the wall plate, if you find that it is mounted on a junction box (e.g. a box similar to one behind a light switch or electric outlet), 240 volts circuit may be present and there is a danger of electric shock. Please consult a qualified electrician.
WIRE LABELLING
nIf your old thermostat wall plate has more than two wires connected to it, then you will need to label the wires. First look for LETTER near each terminal where a wire is connected. These terminals and markings may be on either side of the wall plate.
o Disconnect and identify each wire.
pYou may wish to tape the wires to the wall to keep them from slipping through the hole in the wall. If the hole in the wall is larger than necessary, fill it in order to prevent hot or cold air to penetrate the thermostat. In this manner, the thermostat will behave perfectly.
CHOOSING A LOCATION
Note: For a new installation, choose a mounting location about five feet (150 cm) above the floor in an area with good air circulation and away from:
Drafts or dead air spots, Air ducts, radiant heat from the sun or appliances, Concealed pipes and chimneys.
Mounting the thermostat onto the wall
n Remove completely the slide door of the thermostat. o Unscrew and remove the cover over the connector.
pMark the holes position and align the wire
coming from the wall in the hole beside the connectors.
q Drill two holes and insert the plastic anchors carefully into the holes until they are flush with the wall.
rFasten securely the thermostat to the wall with the two (2) screws.
DISPLAY IN °C OR °F
After the installation of the battery, if
you want to change unit of the degree displayed, follow these instructions
(see the illustration): n From the back of the thermostat,
unscrew the cover. o For the °C display, the jumper in
JP1 is installed.
p For the °F display, the jumper in JP1 is removed. q Re-install the cover in place.
r Press on the reset button.
CONNECTING THE LABELLED WIRES TO THE THERMOSTAT
nConnect the system wires to the terminals according to the wiring diagram shown in the section “wiring diagram”.
WARNING: Do not remove the jumper between terminals Rh and Rc unless otherwise specified.
oPush on the wires in the wall and replace the cover over the connectors.
p Install two (2) “AA” size batteries into the battery compartment.
qTurn on the main switch of the system. The thermostat is ready for use.
WIRING DIAGRAM
The TH123 thermostat can be used with any single stage heating and cooling system. You cannot directly use this thermostat on multiple stages heating or cooling system, millivolt system, heat pump or 240 VAC control system. It can control some of those systems by installing an isolation relay and a 24-volt transformer.
HEATING SYSTEM TYPE
The heating system type selector is located below the wire connector. Start first by keeping the selector at default position Hg. If the fan switch is at FAN AUTO position and the fan doesn’t start when the thermostat turns on the furnace, place the type selector at position He.
2-WIRE HEATING SYSTEM
n Connect the heating relay to terminal W.
o Connect the 24 VAC transformer to terminal Rh.
3-WIRE HEATING SYSTEM WITH FAN CONTROL
n Connect the heating relay to terminal W. o Connect the fan relay to terminal G.
p Connect the 24 VAC transformer to terminal Rh.
4-WIRE HEATING AND COOLING SYSTEM
n Connect the heating relay to terminal W. o Connect the cooling relay to terminal Y. p Connect the fan relay to terminal G.
q Connect the 24VAC transformer to terminal Rh.
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