22
ä Attention
!
The central heating appliance must be suitable for
controlling the coupler. For more information, please
contact Itho Daalderop.
3.5. Dipswitch settings
The two dipswitches are located on the PCB in the
connection cap on the side of the ventilation unit.
3.6. Connecting electrically
The ventilation unit can be connected electrically in various ways.
●
With an earthed plug.
●
With a Perilex plug.
3.6.1. Connecting with protective earth plug
The R-version of the appliance is equipped with an earthed plug.
The wired three-position switch cannot be connected to this
version. Operation takes place via wireless control switches and/or
sensors.
Connect the ventilation unit with the earthed plug to a wall socket.
3.6.2. Connecting with Perilex plug
The P-version of the HRU ECO 350 is equipped with a Perilex
plug. Connect the unit to a Perilex wall socket (possibly in
combination with a wired 3-position switch) according to the
following diagram and table.
VKK dip switch setting
Both the ventilation unit and the boiler need a supply and an
exhaust duct to and from the outside. The purpose of the coupler is
to simplify the ducting system of the HRU ECO 350 and the boiler.
The VKK coupler combines the exhaust air from the ventilation unit
with the supply and exhaust air from the boiler (2 duct system). This
means that only a supply and an exhaust duct is required for the
ventilation unit (maximum 12 floors).
The VKK-HB coupler (up to 40 floors) combines the air outlet of the
ventilation unit with the air supply of the boiler. Both have a separate
exhaust system (3-channel system).
If a VKK damper is used the ventilation unit must be set to
start the VKK test programme.
The VKK dip switch must be set to
ON
when a VKK valve is used.
AWW dip switch setting
If a ground source heat exchanger (AWW) is used in the outside
air intake duct, the ventilation unit must be set so that the bypass
damper opens earlier.
The AWW dip switch must be set to
ON
when using an AWW.
CHP AWW
ON
ON
L1
L3
L2
3 2 1
Colo
ur
Booth
Function
Connection
W
green
/
yellow
earth
mains power
N
blue
zero
mains power
L1
brown
low
permanen
t
phase
mains supply /
switch
L2
grey
middle /
car
link
switch /
unit
L3
black
high
link
switch /
unit
