5
|
About the units and options
Installer reference guide
25
EWSAH/X06D
Daikin Altherma 3 WS
4P675764-1 – 2022.04
h
High voltage wiring intake
(Ø24 mm)
B1PW
Space heating water pressure
sensor
i
User interface
M3S
3-way valve (space heating/
domestic hot water)
Hydro module
a
b
B1PR
S1NPL
g
M1C
d
S1PH
e
f
M1P
c
Y1S
Y1E
a
Plate heat exchanger – Central
water loop side
B1PR
Refrigerant high pressure sensor
b
Plate heat exchanger – Water
side
M1C
Compressor
c
Pressure independent control
valve (PICV) + actuator
M1P
Water pump
d
Refrigerant pressure relief valve
S1NPL
Low pressure sensor
e
Service port (5/16" flare)
S1PH
S1PH
f
Drain valve
Y1E
Electronic expansion valve
g
Inverter switch box (only for
service)
Y1S
Solenoid valve (4-way valve)
Switch boxes
Q1L
Q1L
X2M
X2M
X5M
X5M
A4P
A1P
TR2
A6P
A4P
A8P
A8P
A15P
A15P
A1P
TR2
TR1
TR1
K9M
K9M
A16P
A16P
A6P
Z1F
A7P
A7P
a
b
c
a
b
c
Z1F
a
Installer switch box
A15P
LAN adapter
b
Main switch box
A16P
ACS digital I/O PCB
c
Inverter switch box (only for
service)
K9M
Thermal protector backup
heater relay
A1P
Main PCB (hydro)
Q1L
Thermal protector backup
heater
A4P
Option EKRP1HBAA: Digital I/O
PCB
TR1, TR2
Power supply transformer
A6P
Backup heater control PCB
X2M
Terminal strip – High voltage
A7P
Inverter PCB
X5M
Terminal strip – Low voltage
A8P
Option EKRP1AHTA: Demand
PCB
Z1F
Noise filter