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16
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Technical data
16.3 Piping diagram: Indoor unit
a
b
A Indoor unit
B Field installed
a Space heating water OUT
b Water IN connection
c Pump
d Expansion vessel
e Shut-off valve, male-female 1"
f Magnetic filter/dirt separator
g Safety valve
h Air purge
i Drain valve
j Backup heater
k Loose nut 1"
B1PW Space heating water pressure sensor
B2L Flow sensor
R1T Thermistor (water IN)
R2T Thermistor (backup heater – water OUT)
S1L Flow switch
Screw connection
Flare connection
Quick coupling
Brazed connection
Installer reference guide
272
A
B
R2T
e
k
i
B
R1T
e
k
h
c
j
d
g
h
f
i
S1L
B1PW
B2L
3D120613B
EPRA14~18D + ETBH/X16E
Daikin Altherma 3 H HT W
4P644736-1D – 2023.10
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