Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual page 26

5 | About the units and options
Installer reference guide
26
d Low voltage wiring intake
(Ø13.5 mm)
e Recirculation connection (3/4" G
female)
f Safety valve (space heating/
cooling water circuit)
g Automatic air purge valve
h High voltage wiring intake
(Ø24 mm)
i User interface
i1 Status indicator
Hydro module
b
a
Y1S
Y1E
d
a Plate heat exchanger – Central
water loop side
b Plate heat exchanger – Water
side
c Pressure independent control
valve (PICV) + actuator
d Refrigerant pressure relief valve
e Service port (5/16" flare)
f Drain valve
g Inverter switch box (only for
service)
Switch boxes
Q1L Q1L
A7P A7P
a Installer switch box
b Main switch box
B1L Flow sensor
B1PW Space heating water pressure
M3S 3-way valve (space heating/
M1P
c
e
S1PH
f
B1PR Refrigerant high pressure sensor
M1C Compressor
M1P Water pump
S1NPL Low pressure sensor
S1PH S1PH
Y1E Electronic expansion valve
Y1S Solenoid valve (4-way valve)
a a
A4P A4P A8P A8P
b b
A1P A1P
Z1F Z1F
A6P A6P
c c
A15P LAN adapter
A16P ACS digital I/O PCB
n Levelling feet
o Drain hose (unit + safety valve)
p Tundish (safety relief valve
discharge)
q Safety relief valve (DHW tank)
sensor
domestic hot water)
B1PR
S1NPL
M1C
g
A15P A15P
TR2 TR2
TR1 TR1
K9M K9M
EWSAH/X06UD
Daikin Altherma 3 WS
4P675765-1 – 2022.04