10 Technical Data; Piping Diagram: Indoor Unit - Daikin Altherma 3 R F Installation Manual

10 Technical data

10 Technical data
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10.1

Piping diagram: Indoor unit

A
C
a2
g
b2
c
b1
C
a1
g
A Water side
B Refrigerant side
C Field installed (delivered with the unit)
a1 Space heating/cooling – Water IN (screw connection, 1")
a2 Space heating/cooling – Water OUT (screw connection, 1")
b1 DHW – Cold water IN (screw connection, 3/4")
b2 DHW – Hot water OUT (screw connection, 3/4")
c Recirculation connection
d1 Gas refrigerant IN (heating mode; condenser)
d2 Liquid refrigerant OUT (heating mode; condenser)
e1 Liquid refrigerant IN (cooling mode; evaporator)
e2 Gas refrigerant OUT (cooling mode; evaporator)
f Plate heat exchanger
g Shut-off valve for service
h Flexible pipe
i Expansion vessel
j Magnetic filter/dirt separator
k Safety valve
l Automatic air purge
m Drain valve
n Pump
o Backup heater
Installation manual
40
l
R2T
m
o
M3S
R8T
R5T
i
h
B1PW
B2L R1T
k
l
R4T
n
j
m
B2L Flow sensor
B1PW Space heating water pressure sensor
M3S 3-way valve (space heating/domestic hot water)
Thermistors:
R1T Outlet water heat exchanger
R2T Outlet water backup heater
R3T Refrigerant liquid side
R4T Inlet water
R5T, R8T Tank
Connections:
Screw connection
Flare connection
Quick coupling
Brazed connection
B
e2
d1
f
d2
R3T
e1
3D128638
EBVH/X11+16S18+23DJ
Daikin Altherma 3 R F
4P643599-1B – 2021.10