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14 Technical data
Installer reference guide
74
ERLQ004~008CA + 08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
14.4
Components
14.4.1
Components: Outdoor unit
b
c
d
e
f
j
h
i
g
a
l
k
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
14.4.2
Components: Switch box (outdoor unit)
a
c
d
e
b
a
Service PCB
b
Terminal communication cable
c
Terminal power supply cable
d
Earth connection
e
Wire clamp
14.4.3
Components: Indoor unit
y
f
v
c
t
o
aa
u
x
ab
k
m
s
r
n
n
j
h
g
i
b
a
l p
ab ac
ac
d
w
z
e
q
o
o
3D094403-1A
a
Gas pipe connection Ø15.9 mm flare
b
Liquid pipe connection Ø6.35 mm flare
c
Pressure gauge
d
Safety valve
e
Drain valve water circuit
f
Air purge
g
Water IN connection (main/mixed zone) 1-1/4" BSP (female)
h
Water OUT connection (main/mixed zone) 1-1/4" BSP (female)
i
Water IN connection (additional/direct zone) 1-1/4" BSP (female)
j
Water OUT connection (additional/direct zone) 1-1/4" BSP (female)
k
Domestic hot water: cold water IN 3/4" F BSP
l
Domestic hot water: cold water OUT 3/4" F BSP
m
Control wiring intake Ø24 mm
n
Power supply wiring intake Ø24 mm
o
Levelling feet
p
User interface (optional)
q
Drain valve domestic hot water tank circuit
r
Recirculation connection G 1/2" (female)
s
Hole for the recirculation piping or options wiring Ø35 mm
t
Drain outlet (unit+safety valve)
u
Expansion vessel
v
3-way valve (space heating/domestic hot water)
w
3-way valve (mixing valve for the main zone)
x
Water filter (additional/direct zone)
y
Water filter (main/mixed zone)
z
Pump (additional/direct zone)
aa
Pump (main/mixed zone)
ab
Shut-off valve
ac
Shut-off valve with fill valve (included accessory)
The additional zone is the temperature zone with the highest
temperature. The main zone is the temperature with the lowest
temperature.