IVT AirModule E 9 - Installer Module Circuit Diagram

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Electric installation

AirModule –6 720 813 268(2014/10)

8.10 Installer module circuit diagram

Fig. 31 Installer module circuit diagram

[I1] External input 1

[I2] External input 2

[I3] External input 3

[I4] External input 4

[MK2] Condensation sensor

[PC0] Circulation pump PWM signal

[T0] Flow temperature sensor

[T1] Outside temperature sensor

[TW1] DHW temperature sensor

[TC0] Return heat transfer medium temperature sensor

[TC1] Flow heat transfer medium temperature sensor

[EW1] Immersion heater start signal in hot water cylinder (external)

[FE] Overheating protection alarm

[FW0] Anode 230 V (accessories)

[K1] Immersion heater contactor EE1

[K2] Immersion heater contactor EE2

[K3] Immersion heater contactor EE3

[F50] Fuse 6.3 A

[PC0] Heat transfer medium circulation pump

[PC1] Heating system circulation pump

[PK2] Cooling season relay output 230 V

[PW2] Hot water DHW circulation pump

[VC0] Recirculation exchange valve

[VW1] Heating/DHW exchange valve

[1] 230 V~ operating voltage ([5] Fig. 30 or [4] Fig. 29)

[2] Immersion heater/pressure switch alarm output ([4] Fig. 30

or [3] Fig. 29)

[3] CAN BUS to heat pump (I/O module card)

6 720 809 156-15.2I

Relay output max. load PK2: 2 A, cos>0.4. Higher load

requires installation of an intermediate relay.

Delivered connected

Connected during installation/

accessories

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