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15 Technical data
15.4
Functional diagrams
15.4.1
Functional diagram: Outdoor unit
a
c
b d
e
f
M
n
m
l
k
j
a Heat exchanger thermistor
b Fan motor
c Heat exchanger
d Air thermistor
e Filter
f Electronic expansion valve
g Liquid stop valve
h Gas stop valve with service port
i Accumulator
j Pressure sensor
k Compressor
l Discharge thermistor
m High pressure switch
n 4-way valve (ON=heating)
Heating
Cooling
15.4.2
Functional diagram: Indoor unit
a
b
c
d
x
R1T
w
v
R3T
R4T
u
t
s
r
q
p o
a Outdoor unit
b Indoor unit
c Expansion vessel
d Manometer
e Air purge valve
f Pressure relief valve
g Backup heater
h Pump
i Flow sensor
j Shut-off valve water outlet (field installation)
k Shut-off valve water inlet with fill valve (field
installation)
l Filter
m Heat exchanger (indoor unit)
n Heat exchanger (domestic hot water tank)
o Domestic hot water tank
p Domestic hot water in
Installer reference guide
82
e
g
i
h
e
f
g
h
i
R2T
R5T
n m
l
k
j
q Domestic hot water out
R1T Outlet water heat exchanger thermistor
R2T Outlet water backup heater thermistor
R3T Refrigerant liquid side thermistor
R4T Inlet water thermistor
R5T Tank temperature thermistor
Heating
Cooling
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11
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