Panasonic Aquarea WH-ADC0309J3E5 Planning And Installation Manual page 160

Installation
All in One units
All in One unit | J generation | Standard configuration (WH-ADC0309J3E5 for 1 heating zone)
or Two-zone configuration (WH-ADC0309J3E5B for 2 heating zones)
A Detail view of upper section (seen from rear side)
1 Zone 2 Supply water outlet (to space heating),
2 Zone 2 Return water inlet (from space heating),
3 Refrigerant gas line
6
4 Refrigerant liquid line
160
B
5
only in two-zone configuration
only in two-zone configuration
Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
A
1 2 3 4
B
5 7 8 9
B Detail view of piping connections
5 Safety valve drainage tap
6 Zone 1 Supply water outlet (to space heating)
7 Zone 1 Return water inlet (from space heating)
8 Supply water outlet (to hot water tank)
9 Fresh water inlet
C Bottom view
10 Condensate drain hole
C
10