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12.4 Outdoor Temperature
Sensor
Outdoor Temperature Sensor
Installation
1. Pull out the sensor body from the cap.
2. Attach the body to the wall using the screws/
anchors provided with the device.
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 body.
Navien Outdoor Temperature Sensor Kit
126 Appendixes
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 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, vents, lights)
Avoid installing the sensor in areas where the
●
sensor is subjected to excessive moisture.
Use 18 gauge wiring (thermostat wiring) with no
●
splices.
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.
Make sure wiring connections are secure before
●
closing the cap.
The sensor is a water resistant device.
●
Any damage to the device may require the
●
replacement of the entire component.
12.5 Outdoor Reset Control
The Outdoor Reset Control feature may be used
to enhance energy efficiency while maintaining
optimal heating performance. With the Outdoor
Reset Control, the space heating temperature
setting automatically changes according to the
outdoor temperature and the current space heating
system application (system load).
You can configure the Outdoor Reset Control
settings on the front panel. Refer to "11.5.2 Setting
the Space Heating Operation" on page 101 and
"11.6.3 Setting the Operation Parameters" on page
107.
The Outdoor Reset Control feature
Note
requires installation of an outdoor
temperature sensor, and it only works
when the boiler is running in the normal
operation mode. It does not work
when the boiler is running in either the
Minimum (MIN) or Maximum (MAX)
mode, or when the boiler's front panel
displays a fault.
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