14 Technical data
Installer reference guide
81
EPGA11~ EA9W
Daikin Altherma – Low temperature split
4P556075-1 – 2019.02
14.3
Piping diagram: Indoor unit
3D120612
B1PW
S1L
M3S
M1S
R8T
R2T
R1T
R5T
R7T
A
B
B
l
m
m
a2
a1
d2
d1
c2
c1
g
h
k
k
i
j
B1L
o
j
f
B
b1
f
f
B
b2
f
q
q
q
q
q
q
M
M
X
X
k
p
n
e
B
f
B
f
A
Water side
B
Field installed
a1
Space heating water IN (additional/direct zone)
a2
Space heating water OUT (additional/direct zone)
b1
Space heating water IN (main/mixed zone)
b2
Space heating water OUT (main/mixed zone)
c1
Domestic hot water: cold water IN, loose nut 3/4"
c2
Domestic hot water: hot water OUT, loose nut 3/4"
d1
Gas refrigerant IN (heating mode; condenser)
d2
Liquid refrigerant OUT (heating mode; condenser)
e
Pump (main/mixed zone)
f
Shut-off valve, male-female 1" (if equipped)
g
Expansion vessel
h
Magnetic filter/dirt separator
i
Safety valve
j
Air purge
k
Drain valve
l
Pump (additional/direct zone)
m
Check valve
n
Capillary tube
o
Backup heater
p
Water filter (main/mixed zone)
q
Loose nut 1"
B1L
Flow sensor
B1PW
Space heating water pressure sensor
M1S
3-way valve (mixing valve for the main/mixed zone)
M3S
3-way valve (space heating/domestic hot water)
R1T
Thermistor (heat exchanger – water OUT)
R2T
Thermistor (backup heater – water OUT)
R5T, R8T
Thermistor (tank)
R7T
Thermistor (main/mixed zone – water OUT)
S1L
Flow switch
Screw connection
Flare connection
Quick coupling
Brazed connection