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12.4 Outdoor Temperature Sensor
(Optional)
The boiler is designed to be able to function with an outdoor
temperature sensor (10kΩ @ 25°C). Connect the sensor cables
to the terminals 3 and 4 of the boiler terminal strip. For more
information on the boiler terminal strip, refer to "8.5 Connecting
the Outdoor Temperature Sensor" on page 57.
Outdoor Temperature Sensor Installation Guidelines
Avoid areas with temperature fluctuations by direct sunlight,
●
and where the temperature may not be representative of true
outdoor temperature.
Best location to install the temperature sensor is on a North or
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Northeast side of a structure under eaves where the sensor is
shielded from direct sunlight.
Avoid placing sensor in close proximity of heat sources that
●
may affect correct temperature sensing. (fans, exhausts, flues,
lights)
Avoid installing the sensor in areas where the sensor is
●
subjected to excessive moisture.
Use 18 gauge wiring (thermostat wiring) with no splices.
●
(except at the unit harness connection with yellow leader
wire.)
Caution should be taken to avoid potential electromagnetic
●
interference (EMI) by routing separately from potential
sources such as line voltage wiring. When necessary, shielded
cable may be used.
The sensor is a water resistant device.
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Any damage to the device may require the replacement of the
●
entire component.
92
Appendices
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