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

10 Technical data

10 Technical data
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10.1

Piping diagram: Indoor unit

A
C
R2T
a2
e
C
R4T
a1
e
A Water side
B Refrigerant side
C Field installed
a1 Space heating/cooling – Water IN (screw connection, 1")
a2 Space heating/cooling – Water OUT (screw connection, 1")
b1 Gas refrigerant IN (heating mode; condenser)
b2 Liquid refrigerant OUT (heating mode; condenser)
c1 Liquid refrigerant IN (cooling mode; evaporator)
c2 Gas refrigerant OUT (cooling mode; evaporator)
d Plate heat exchanger
e Shut-off valve for service
f Expansion vessel
g Magnetic filter/dirt separator
h Safety valve
i Automatic air purge
j Drain valve
k Backup heater
l Pump
Installation manual
40
EBBH*
B1PW
l
B1PW
EBBX*
j
h
f
i
g
j
B
i
R1T
k
B2L
B1PW Space heating water pressure sensor
B2L Flow sensor
Thermistors:
R1T Heat exchanger – Water OUT
R2T Backup heater – Water OUT
R3T Liquid refrigerant
R4T Heat exchanger – Water IN
Connections:
Screw connection
Flare connection
Quick coupling
Brazed connection
c2
b1
d
b2
R3T
c1
3D113750
EBBH/X11+16DF
Daikin Altherma 3 R W
4P643600-1B – 2021.10