Piping Diagram: Indoor Unit - Daikin Altherma EHVH08SU18CB6W Installer's Reference Manual

14.3

Piping diagram: Indoor unit

A
C
a2
e
b2
b1
C k3
a1
e
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 Refrigerant IN
c2 Refrigerant OUT
d Plate heat exchanger
e Shut-off valve with drain/fill valve
f 3-way valve
g Backup heater
h Flow sensor
i Pressure relief valve
j Domestic hot water tank
k Components in domestic hot water tank kit
(EKVSU180+260A):
k1: Pressure reducing valve
k2: Pressure relief valve
k3: Expansion vessel 1
k4: Expansion vessel 2
l Heat exchanger
m Filter
n Air purge
o Expansion vessel
p Safety valve
q Manometer
r Pump
s Drain cap
R1T Thermistor (heat exchanger – water OUT)
R2T Thermistor (backup heater OUT)
R3T Thermistor (liquid refrigerant)
R4T Thermistor (heat exchanger – water IN)
R5T Thermistor (domestic hot water tank)
Screw connection
Flare connection
Quick coupling
Brazed connection
ERLQ004~008CA + EHVH04+08SU18+26CB6W
Daikin Altherma – Low temperature split
4P449978-1B – 2018.07
f
R2T
i
k1 k2
l
k4
m
n
g
h
j
o
p
q
r
s
14 Technical data
B
R1T
c1
d
c2
R4T R3T
3D105910-1
Installer reference guide
89