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Installation Instructions
Singular Combi Boiler - BTC 439003301 B (2021/07)
15 Outdoor Temperature Sensor
15.1 Outdoor Temperature Sensor Installation (Optional)
Figure 90
1. Separate the sensor body from the sensor cap.
2. Attach the sensor body to the wall using the provided screws.
3. Run the wires into the device body through the grommet opening
4. Connect the wires to the terminal block.
5. Attach the cap to the sensor body.
6. Run wire back to boiler
7. Identify the two blue wires extruding from the bottom of the boiler labeled
Outdoor temp wire.
Figure 91
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Brown
Wires
Blue
Wires
8. Connect the two wires from the sensor to these two wires using wire caps.
15.2 Outdoor Temperature Sensor Installation Guidelines
Avoid installing the temperature sensor in a location where the
temperature may change due to direct sunlight or a location where the
representative outdoor temperature is not indicated.
The best place to install the temperature sensor is to the north or
northeast of the eaves, where direct sunlight can be avoided.
Do not install the sensor near a heat source that may affect sensing of a
correct temperature (fans, exhaust vents, lights).
Avoid installing the sensor in a location with a high amount of moisture.
Use 18gauge wiring with no splices
Before attaching the cap, ensure the wiring is fixed firmly.
The sensor is a water resistant device.
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