Panasonic 2WAY Multi U-20GES3E5 Manual page 10

NOTE
• Fix the wires with the clamper to the wiring fixture plates (2 locations) and do not allow them to touch the
refrigerant tubing and compressor.
• Use a waterproof conduit for outdoor unit wiring to avoid damaging the wire and to prevent accumulation of
liquid inside the unit.
Unit front
 Operating power for the external hot water pump
The external pump is powered via screws 1 and 2 on the 2P terminal board (TB2) of the GHP outdoor unit's
terminal box.
Output type: No-voltage A-contact (contact "closed" when external pump is operating and "open" when it is not
operating)
Be sure to use an electromagnetic contactor to connect to the 2P terminal board (TB2).
Operating current : min 20 mA 220/230/240 V AC, max 1 A 220/230/240 V AC
If any loads with the operating current under the above minimum value (like relays or neon lamps) are
connected, they can cause malfunctions.
Brown Brown
Contact output for external pump
Electrical wiring port
Fig. 19
External pump
(TB2) 2P
terminal board
1
2
Outdoor unit (GHP)
Fig. 20
EN - 10
Unit bottom
Electromagnetic
contactor
PM
External pump
power
Electromagnetic
contactor power