Aube Technologies TH140-28 User Manual
TH140-28
Installation and User Guide
Electronic Programmable Thermostat
n
Installation
1.1 Guidelines
TURN OFF POWER TO THE HEATING SYSTEM AT THE MAIN
POWER PANEL TO AVOID ELECTRICAL SHOCK.
Installation should be carried out by an electrician.
• For a new installation, choose a location about 5 ft. (1.5 m) above
the floor.
• The thermostat must be installed facing the heating system and on
an inside wall.
• Avoid locations where there are air drafts (top of staircase, air outlet), dead air spots (behind a door), direct sunlight or concealed
chimneys or stove pipes.
1.
1.2 Thermostat Wiring
NORTH AMERICA
LOW VOLTAGE < 30 V: no polarity
120/240 V
Relay
24 V transformer
Relay
Furnace
LINE VOLTAGE 120 to 240 VAC
Must be installed onto a certified electrical box.
2 A maximum load
Connection to a
circulator through
a 24 V relay
Connection to the
thermostat terminals
of a furnace
Power supply
n Loosen the captive screw holding the faceplate to the mounting
plate.
o Pull the lower part of the faceplate to remove it from the mount-
ing plate.
p Loosen the screw (captive) holding the wire cover and remove
the wire cover.
q Pull wires through the hole in the mounting plate and secure the
mounting plate to the wall (or onto an electrical box for line voltage wiring) using the enclosed wall anchors and screws.
r Wire the thermostat to the heating system (see section 1.2) and,
if necessary, connect the remote input (see section 1.3).
s Once wiring is complete, re-install the wire cover.
t Use the switches located at the back of the faceplate to config-
ure your thermostat (see section 1.4) according to your application.
u Install the batteries (see section 1.5).
v Mount the faceplate on the mounting plate and tighten the screw.
120/240 V
Connection to a
circulator (pump)
of a water heating
system
EUROPE
For a 2-wire connection: no polarity
240 V
Relay
Furnace
For a 3-wire connection: observe the polarity
Load
Provided wires
Direct wiring to
the circulator
Connection to the
thermostat terminals
of a furnace
Wiring to a
240 V
TH140-28 400-140-000-C 2008-01-15 1/4
power-operated
mixing control valve
1.3 Remote Input Wiring
The TH140 is equipped with a remote input which allows conne ction
of a telephone controller (optional Aube CT240), a home automation
system or any other remote control system. When a signal is
received through this input, the TH140 will automatically switch from
normal operating mode to Vacation mode, or vice versa when the signal is removed.
1.3.1 Connection to the CT240
Connect CT240 terminals A and C to TH140
terminals X and C. You must respect the
polarity.
For details on operating the telephone controller, refer to the instruction manual.
1.3.2 Connection to a home automation system
Connect the TH140 to the home automation system as displayed in the wiring diagram.
Home automation system
1.4 Configure the Thermostat
The switches are located on the back of the faceplate. Default settings are highlighted.
Heating Cycle Selection (switches #1 and #2)
Select the cycle using switches #1 and #2. Short cycles help
eliminate temperature variations, thus increasing user comfort. Since
shorter cycles can lead to premature system wear, it is important to
select the temperature control cycles appropriate to your heating
system. In general, the bigger your heating unit is, the longer the
cycles should be.
Cycles EUROPE AMERICA Position
5 minutes
10 minutes
15 minutes
20 minutes Commercial unit
Not recommended for
furnaces
Gas or electric
wall furnace
Fuel or gas floor
furnace, forced air
heating
Not recommended for
central units
Radiant or convection
electric heating
Central heating
1.4.2 Conventional mode with anticipation (switch #5)
This mode is compatible with all heating systems.
Switch Description UP DOWN
1 & 2
3 Clock display 12H
4
5 Temperature control mode
6
1. If you change from °C to °F (or vice versa), you will need to reprogram
your Comfort, Economy and Vacation settings.
2. For hot water installations, it is recommended to enable this option to acti-
vate the pump for one minute every 24 hours to prevent pump seizure.
Cycles (proportional)
Span (conventional) 0.5°C (0.9°F) (see 1.4.2)
Temperature display
Pump protection
1
2
15 min (see 1.4.1)
24H
°F
Proportional
(see 1.4.1)
Deactivate Activate
°C
Conventional
(see 1.4.2)
1.4.1 Proportional Adaptive Mode (switch #5)
This mode analyzes previous cycles to define the the next duty cycle.
This control mode guarantees optimal temperature control based on
the system’s capacity. To extend the life of the system, a minimum
On/Off time of 10% of the cycle has been implemented. For example
with a 15-minute cycle, the system would not start or stop for less
than 1.5 minutes.
Ideal for:
• Radiant or convection electrical heating system
• Circulator control in a hot water system
• Electrical hot-air furnace
• Conventional gas or fuel hot-air furnace
Not recommended for:
• Gas or fuel furnace or boiler with a wall chimney having a 30-second or higher combustion gas purging cycle. To figure out the gas
purging cycle of your system, count the time between the heating
command sent by the thermostat and the moment when the
burner actually goes on.
• Multi-zone systems, where several thermostats command a single
heating unit.
Note: In these last two cases, conventional mode with anticipation is
recommended.
Programmable Span Selection (switches #1 and #2)
Select the span using switches #1 and #2. The default temperature
span is 0.5°C (0.9°F). For example, if the temperature setpoint is
20°C (68°F), the heating system will turn on at 19.5°C (67.1°F) and
turn off at 20.5°C (68.9°F).
Span Hot Water Heating Forced Air Heating Position
0,3°C
(0,5°F)
0,4°C
(0,7°F)
0,5°C
(0,9°F)
0,6°C
(1,1°F)
1. 240 volt heating with relay (base board, convector, radiant ceiling, etc.)
Not recommended for
furnaces
Gas or electric
wall furnace
Fuel or gas floor
furnace
Commercial unit
Not recommended for
central units
Radiant or convection
electric heating
Central heating
1
TH140-28 400-140-000-C 2008-01-15 2/4
Loading...