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1.5 C
ONNECT THE LABELLED WIRES TO THE THERMOSTAT
1. Connect the system wires to the thermostat terminals according to the wiring
diagram shown in section 1.6.
2. Make sure that the wires are pushed well back into the wall.
3. If you own a CT240 telephone controller, refer to section 6.1 for connection.
1.6 W
IRING DIAGRAMS
The TH141 thermostat is compatible with most heating and air conditioning systems.
Multi-level heating and air conditioning systems, Milivolt control heating systems, heat
pumps and baseboard heating units are not compatible with this thermostat. Baseboard
units can be connected using a 24 V relay.
1.6.1 2-W
IRE HEATING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the 24 V transformer to terminal Rh.
In this case, the order of connection is unimportant.
4
1.6.2 3-W
IRE HEATING SYSTEM WITH FAN CONTROL
1. Connect the heating relay to terminal W.
2. Connect the fan relay to terminal G.
3. Connect the 24 V transformer to terminal Rh.
4. Connect a wire between terminals Rh and Rc.
1.6.3 3-W
IRE AIR CONDITIONING SYSTEM WITH FAN CONTROL
1. Connect the air conditioning relay to terminal Y.
2. Connect the fan relay to terminal G.
3. Connect the 24 V transformer to terminal Rc.
1.6.4 4-W
IRE HEATING AND AIR CONDITIONING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the air-conditioning relay to terminal Y.
3. Connect the fan relay to terminal G.
4. Connect the 24 V transformer to terminal Rh.
5. Connect a wire between terminals Rh and Rc.
5
1.6.5 5-W
IRE HEATING AND AIR
-
CONDITIONING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the air-conditioning relay to terminal Y.
3. Connect the fan relay to terminal G.
4. Connect the 24 V transformer to terminal Rh.
5. Connect the 24 V air conditioning transformer to
terminal Rc.
1.7 T
HERMOSTAT CONFIGURATION
Before mounting the thermostat on the wall, configure it
using the switch bank on the back side of the unit.
a) 24 hrs. or 12 hrs. Display
The TH141 offers a 12 hrs. or 24 hrs. mode display. Default configura-
tion of the display is in the 24 hrs. mode. If you prefer a 12 hrs. display,
push #3 switch up.
6
b) Temperature in °C or °F
Default configuration of the TH141 is in °C. If you wish to change the
temperature to °F, push #4 switch up. Please note that if you changefrom
°F to °C, your comfort and economy settings will need to be
reconfigured as well.
c) Regulation Modes
You have a choice between two regulation modes:
1. Proportional adaptive mode
This mode analyses previous cycles in order to define the length of the up
coming cycle. This operating mode guarantees optimal regulation based on
the capacity of your system. To avoid cycles that are too short for the heating
or air-conditioning units, minimum On and Off duration is limited to 10% of the
period (1.5 minutes for a 15 minute cycle).
7
• Proportional adaptive
• Conventional with anticipation
If you want the proportional adaptive mode, push #5 switch up.
Содержание TH141A-HC-28
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