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Product description
System example for ECOi single-connection system
3
Multi-connection system
Note:
The following restrictions apply only if PAW-560MAH2(M/L) is used alone or in combination with other AHU Kits. For all
other AHU Kits and AHU Kit combinations without PAW-560MAH2(M/L) no such restrictions apply.
1 All AHU heat exchangers belonging to the same refrigerant circuit have to be installed in the same chassis equipped with
one single fan motor.
2 One AHU Kit and correspondingly one magnetic relay is required for each heat exchanger. All AHU Kits have to be wired
to the fan motor.
3 All AHU Kits shall be connected and controlled by group control wiring of one remote controller.
4 In case of a multiple AHU Kit combination within one refrigerant system, those kits must share the same AHU housing
including fan, and they have to be "group-wired" and operate as a single group. In this case you have to disconnect the
included remote controllers and CZ-CAPBC2 boards (ACC-SP1A PCB) except one. It is irrelevant which one is retained,
there is no preference. The external connections need to be done only on the unit with the connected CZ-CAPBC2
board.
Note: In this particular case it is even possible to combine a single advanced or medium version with one, two or three
light versions, and still have full functions of the advanced or medium version respectively.
34
AL1
PV
ºC
OUT
SV
ºC
ATU
SET
PAW-280MAH2
ECOi outdoor unit
Piping
Air Handling Unit
AHU Kit – Installation Instructions – 11/2021
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