Piping Diagram: Indoor Unit - Daikin Altherma 3 H HT F Series Installer's Reference Manual

15.3 Piping diagram: Indoor unit

B
a2
f
l
b2
b1
B
a1
f
l
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
A
k
M3S
g
A Indoor unit
B Field installed
a1 Space heating water IN
a2 Space heating water OUT
b1 Domestic hot water: cold water IN, loose nut 3/4"
b2 Domestic hot water: hot water OUT, loose nut 3/4"
c1 Water IN connection
c2 Water OUT connection
d Pump
e Backup heater
f Shut-off valve, male-female 1"
g Expansion vessel
h Magnetic filter/dirt separator
i Safety valve
j Air purge
k Drain valve
l Loose nut 1"
B1L Flow sensor
B1PW Space heating water pressure sensor
M3S 3-way valve (space heating/domestic hot water)
R1T Thermistor (water IN)
R2T Thermistor (backup heater – water OUT)
R5T, R8T Thermistor (tank)
S1L Flow switch
Screw connection
Flare connection
Quick coupling
Brazed connection
B1PW
j
B1L R1T
R2T
e
R8T
R5T
i
j
d
h
k
15 Technical data
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S1L
B
l f
B
f
l
k
3D120611A
Installer reference guide
c1
c2
233