Panasonic PAW-160MAH3M Installation Instructions Manual page 75

For all models
● The external signal lines must be inserted drooped in the AHU body and protected by
a clamp with the drooping wire being close to the AHU Kit to avoid water reaching the
AHU Kit.
Blower signal output
This fan control is usually at ON position at the time of operating, but becomes OFF in defrosting.
MAH3 generation models
External Potential: max. 250 VAC 5 A
X1: Relay (field supplied)
If uninterrupted fan operation is needed and cold draft air is avoided for example by some internal
bypass etc., the defrost signal (terminals OP1 and OP2 (MAH3: X4.9 and X4.10; PAH3: X4.7 and
X4.8)) can be used with an additional field supplied relay.
Blower protection input (for MAH3 generation models only)
If a switch opens, an alarm "P01" appears on a remote controller display, and operation stops.
AHU Kit – Installation Instructions – 07/2023
Inside of AHU
AHU Kit
Blower signal and
blower protection lines
Clamp
Drooping wire
X1
F2
F1
K2
OP3
SW1
PAH3 generation model
X1
F2
F1
External Potential: max. 230 VAC 8 A
X1: Relay (field supplied)
OP3: Fan Alarm Signal Input
Internal potential 230 VAC
Important:
Unit will only operate if this contact is closed, otherwise error code P01 will
be displayed.
Electrical Wiring
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