Aube Technologies TH140-28 Remote Input Wiring, Configure the Thermostat, Connection to the CT240

1.3 Remote Input Wiring

The TH140 is equipped with a remote input which allows connection 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 sig- nal 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 control- ler, refer to the instruction manual.

1.3.2 Connection to a home automation system

Connect the TH140 to the home auto-	Home automation system
mation system as displayed in the wir-
ing diagram.

1.4 Configure the Thermostat

The switches are located on the back of the faceplate. Default set- tings are highlighted.

Switch	Description	UP	DOWN
1 & 2	Cycles (proportional)	15 min (see 1.4.1)
	Span (conventional)	0.5°C (0.9°F) (see 1.4.2)
3	Clock display	12H	24H
4	Temperature display 1	°F	°C
5	Temperature control mode	Proportional	Conventional
		(see 1.4.1)	(see 1.4.2)
6	Pump protection 2	Deactivate	Activate

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.

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-sec- ond 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.

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	Not recommended for	Not recommended for
	furnaces	central units
10 minutes	Gas or electric	Radiant or convection
	wall furnace	electric heating
	Fuel or gas floor
15 minutes	furnace, forced air	Central heating
	heating
20 minutes	Commercial unit

1.4.2Conventional mode with anticipation (switch #5)

This mode is compatible with all heating systems.

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	Not recommended for	Not recommended for
(0,5°F)	furnaces	central units
0,4°C	Gas or electric	Radiant or convection
(0,7°F)	wall furnace	electric heating 1
0,5°C	Fuel or gas floor	Central heating
(0,9°F)	furnace
0,6°C	Commercial unit
(1,1°F)

1.240 volt heating with relay (baseboard, convector, radiant ceiling, etc.)

TH140-28 400-140-000-C 2008-01-15 2/4