Piping Diagram: Indoor Unit - Daikin Altherma 3 R F Installer's Reference Manual

16.2 Piping diagram: Indoor unit

C
a2
f
b2
b1
C
a1
f
ERGA04~08EAV3(A) + EHVH04+08SU18+23EA6V
Daikin Altherma 3 R F
4P629090-1 – 2020.08
A
k
M3S
f
g
A Water side
B Refrigerant side
C Field installed
a1 Space heating water IN
a2 Space heating water OUT
b1 Domestic hot water: cold water
IN
b2 Domestic hot water: hot water
OUT
c1 Gas refrigerant IN (heating
mode; condenser)
c2 Liquid refrigerant OUT (heating
mode; condenser)
d1 Liquid refrigerant IN (cooling
mode; evaporator)
d2 Gas refrigerant OUT (cooling
mode; evaporator)
e Plate heat exchanger
f Shut-off valve for service (if
equipped)
g Expansion vessel
h Magnetic filter/dirt separator
i Safety valve
j Air purge
k Drain valve
l Pump
m Flow sensor
n Backup heater
B1PW
j
m
R1T
R2T
n
R8T
R5T
i
j
R4T
l
h
k
16 Technical data
|
B
B2PR
d2
c1
e
c2
R3T
d1
k
B1PW Space heating water pressure
sensor
B2PR Refrigerant pressure sensor
M3S 3-way valve (space heating/
domestic hot water)
R1T Thermistor (heat exchanger –
water OUT)
R2T Thermistor (backup heater –
water OUT)
R3T Thermistor (liquid refrigerant)
R4T Thermistor (heat exchanger –
water IN)
R5T, R8T Thermistor (tank)
Screw connection
Flare connection
Quick coupling
Brazed connection
Installer reference guide
3D111411
251