controller. At this connection, a bridge must be installed by an
electrician.
5.4 Other components/devices
Outdoor temperature sensor
SI0000327
A
B
A
Item
Description
A
Outdoor temperature sensor
The outdoor temperature sensor serves as an input signal and
ensures perfect heating control.
Install the outdoor sensor at least 2 meters above the ground, on a
north-facing wall, protected from direct sunlight. Ensure that it is not
located near openings that may effect its operation, such as doors,
windows, vents etc.
BUS master
The BUS master is used in multi-family houses with large number of
apartments. It enables the control of up to 128 heat interface units
with one external sensor.
Room thermostat connection set
The room thermostat connection set is used to connect an external
room thermostat. This ensures perfect heating control especially
when no outdoor sensor is installed.
The room temperature signal can also be activated via the individual
room control (Uponor Smatrix or Uponor Base flexiboard).
5.5 Filling, flushing and venting
Note
Switch off the pump before filling and venting the system!
SI0000329
A
B
Item
Description
A
Venting screw
B
Draining and filling valve
The filling and draining valve on the primary heating can be used for
filling and flushing of the heating system.
Filling and flushing the system
1.
Open the draining and filling valve (B).
2.
Fill and flush the system with heating water.
Venting the system
1.
Open the venting valve (A).
2.
Vent the heat interface unit.
Filling the secondary side
Warning!
Never exceed 2.5 bar when filling the system!
1.
The safety valve has a opening pressure at 3 bar. Pay attention
to the pressure gauge when filling the secondary side.
2.
Stop filling the system when the pressure is between 1.5 and 2
bar depending on application.
3.
Vent the secondary side.
4.
If necessary, fill with more water until the pressure rises to 1.5–2
bar.
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Combi Port E D
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Installation and operation manual
