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