Aube Technologies TH123 User Manual
TH1 2 3
ELECTRONIC PROGRAMMABLE THERMOSTAT FOR HEATIN G AND COOLIN G
SYSTEMS
SUMMARY
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 incorpo-
rated 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.
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
AUTO: executes the programs. or button shows the tem-
perature setting.
MAN: bypasses the programming. or changes the tem-
perature setting.
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.
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.
o Remove the cover from the old thermostat. You may have to
pull extra hard.
p Unscrew the old thermostat from the wall plate
q Now 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
n If your old thermostat wall plate has more than two wires con-
nected 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.
p You 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.
p Mark the holes posi-
tion 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.
r Fasten securely the thermostat to the wall with the two (2)
screws.
q Turn 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
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
n Connect the system wires to the terminals according to the wir-
ing diagram shown in the section “wiring diagram”.
WARNING: Do not remove the jumper between terminals Rh and
Rc unless otherwise specified.
o Push on the wires in the wall and replace the cover over the
connectors.
p Install two (2) “AA” size batteries into the battery compartment.
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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