Daikin Altherma 3 R F - Piping Diagram: Indoor Unit

17 | Technical data
Installer reference guide
287
ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A – 2022.05
17.3 Piping diagram: Indoor unit
3D128638
B1PW
B2L
M3S
R3T
R8T
R2T
R1T
R5T
R4T
A
C
C
n
a2
a1
b2
b1
c
i
h
f
j
m
k
l
o
l
e1
d2
e2
d1
B
m
g
g
A Water side B2L Flow sensor
B Refrigerant side B1PW Space heating water pressure sensor
C Field installed (delivered with the unit) M3S 3-way valve (space heating/domestic hot water)
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) Thermistors:
e2 Gas refrigerant OUT (cooling mode; evaporator) R1T Outlet water heat exchanger
f Plate heat exchanger R2T Outlet water backup heater
g Shut-off valve for service R3T Refrigerant liquid side
h Flexible pipe R4T Inlet water
i Expansion vessel R5T, R8T Tank
j Magnetic filter/dirt separator
k Safety valve Connections:
l Automatic air purge Screw connection
m Drain valve Flare connection
n Pump Quick coupling
o Backup heater Brazed connection