Panasonic PAW-160MAH2L Installation Instructions Manual page 98

Electrical Wiring
Electric circuit example – ECOi systems
Multi-connection systems with 3 AHU Kits
Electric circuit example – PACi systems
5
Single-connection system
Method B: For multi-step or inverter mode fan control by external BMS
Method B is applicable for MAH2/PAH2 generation models only.
When the AHU fan is controlled by an external building management system in a multi-step or
inverter mode (e.g. based on a room CO
the simple on/off contact method (as in Method A) may not be satisfactory. In such cases, it is
strongly recommended to install a field-supplied differential pressure switch and/or air flow switch
in the AHU duct(s), in order to enable outdoor unit operation only when sufficient air volume flow is
present.
The following diagram shows just one wiring example of several possibilities.
For the PAW-T10 contacts used in this wiring system to work properly, the following requirements
must be observed:
98
AHU Kit
10P Connector
Blower signal
output
AHU Kit
10P Connector
Blower signal
output
AHU Kit
10P Connector
Blower signal
output
AHU Kit
10P Connector
Blower signal
output
● On the AHU Kits's integrated remote controller, invoke the "Detailed Settings" mode
and set parameter "2E" to "0001". (For details on the "Detailed Settings" mode, see
the operating instructions of the relevant remote controller model or the ECOi/ECO G
or PACi service manuals.)
● Make sure that jumper JP1 on the indoor unit PCB remains closed/intact.
7
6
X4
5 X1
4
X1
7
6
X4
5
X2
4
7
6
X4
5 X3
4
7
6
X2
5
4
X1
sensor or a room supply pressure control or similar),
2
Field-supplied
X2 X3
Blower
signal
Field-supplied
X1
Blower
signal
AHU Kit – Installation Instructions – 09/2021