Commissioning
Vent 402 – 6721815546 (2021/03)
14
Connections Installer module
Fig. 18 Connections Installer module
[1] Encoders
[T1] Outdoor temperature sensor
[PW2] DHW circulation pump (accessory)
6 Commissioning
In case of an old IVTheat pump replacement, the rotary encoder must be
occasionally changed according to the table below.
Table 6 Encoder position for each model
P=A Electrical heater 13,5 kW 3~
P=1 Electrical heater 9 kW 3~
P=2 Electrical heater1 kW 1~
A=0 Standard setting
NOTICE
The appliance needs to be shut down when changing the encoder
position. When starting up the appliance, make sure to run the
configuration guide.
Termination switch for CANbus should be in “ON” position.
NOTICE
The appliance will suffer damage if the power is connected without
water.
Insulation material (EPP), electrical heater and circuit pump can
overheat if the power is switched on before water is added.
1
Heat pump model Encoder position
490 / 690 P=1
550 P=2
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