Fläkt Woods
8666 GB 2010.06
Specifications are subject to alteration without notice
Installation and maintenance instructions
Control equipment
17
Temperature sensor
The temperature sensors included, and where they
should be located, is shown in the list of components and
the flow chart in the drawing documentation.
Connect all external temperature sensors to the control
panel via quick-fit connectors. The room sensor and exte
-
rior wall sensor are supplied without cables, but the other
temperature sensors are supplied with fitted cables and
quick connectors to the terminal block. The supply air
sensor, room sensor, exterior wall sensor and the freeze
protection sensor are supplied with the unit but not
installed, while the other temperature sensors are factory
fitted in the air handling unit. Obviously these must be
moved if the flow direction on the unit is changed, or if
the air handling unit is converted. The supply air temper
-
ature sensor (GT1) should be fitted in the supply air duct,
approximately 1.5 m from any duct heaters, to give stable
measurement values.
The outdoor temperature sensor (GT3) for installation
on the facade, is installed centrally on an outside wall, at
least 2.5 m from the ground, on the building in which the
temperature is to be controlled. The sensor should not
be exposed to morning sun or installed above a window,
door or other heat sources. Install the sensor on a wall
that faces north if possible.
The room temperature sensor (GT2) is intended for place
-
ment on an interior wall in the room where the tempera-
ture is to be controlled. The sensor should be positioned
in an area with good air circulation and it should not be
exposed to direct sunlight.
The frost protection sensor (GT5) is to be installed on the
heater return pipe when using clamp on sensors and in
the metering socket on the return pipe when immersion
sensors are used. To obtain the correct measured values,
the heat-conducting paste supplied must be applied to
the return pipe when the clamp on sensor is secured onto
the return pipe using cable ties.
Terminal block
Component
GT1
Supply air temperature sensor
GT2
Room temperature sensor
GT3
Outdoor air sensor
GT5
Frost protection sensor
GT12
Extract air temperature sensor
Z
Efficiency sensor/external set point/heat
exchanger pressure monitor
GT1
GT2
GT3
GT5
G G
0 Y M
Z
GT1
2
Fig. 12
Содержание eq Controls
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