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15 Technical data
15.3
Components
15.3.1
Components: Outdoor unit
k
l
a
a Switch box main PCB (inverter and control PCB)
b Terminal communication and power supply
c Service PCB
d 4-way valve
e Electronic expansion valve (main)
f Accumulator
g Compressor
h Liquid stop valve
i Gas stop valve
j Service port
k Fan motor
l Heat exchanger
15.3.2
Components: Switch box (outdoor unit)
a
b
a Service PCB
b Terminal communication cable
c Terminal power supply cable
d Earth connection
e Wire clamp
Installer reference guide
80
b
c
d
e
f
g
h
i
j
c
d
e
15.3.3
Components: Indoor unit
d
b
c
a
z
x
y
n
w
v
n
o
u
t
s
r
q
a Space heating cooling out
b Shut-off valves (accessory)
Allows isolation of the indoor unit water circuit side from the
residential water circuit side.
c Domestic hot water out
d Refrigerant liquid connection R410A
e Refrigerant gas connection R410A
f Domestic hot water in
g Fill valve (accessory)
h Space heating cooling in
i Expansion vessel (10 l)
j Pressure relief valve
Prevents excessive water pressure in the water circuit by
opening at 3 bar.
k Water filter
Removes dirt from the water to prevent damage to the pump or
blockage of the heat exchanger.
l Heat exchanger
m Water pump
Circulates the water in the water circuit.
n Thermistors
Determines the water and refrigerant temperature at various
points in the circuit.
o Drain caps
p Tank thermistors (180 l/260 l)
q Domestic hot water tank drain valve
Empties the full tank.
r Switch box
Contains the main electronic and electrical parts of the indoor
unit.
s Backup heater thermal protector
The protector activates when the temperature of the backup
heater becomes too high.
t Drain collector (EHVX models only)
u Drain gutter (EHVX models only)
ERLQ004~008CAV3 + EHVH/X04+08S18CA + EHVH/X08S26CA
e
b
g
f
h
i
i
dd
z
j
x
k
y
l
m
n
n
o
p (180 l)
cc
aa
p (260 l)
bb
Daikin Altherma - Low Temperature Split
4P313775-1C – 2012.11
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