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15 Technical data
Installer reference guide
77
ERLQ004~008CA + 08S18CA3VF
Daikin Altherma low temperature split
4P3662261 – 2014.01
15.2.3
Components: Indoor unit
c d e
f
x
n
v
u
n
o
s
z
i
y
x
aa
t
y
a
b
g
h
cc
j
k
l
m
n
r
o
p
bb
cc
w
q
b
a
Space heating cooling out
b
Shutoff 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
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.
u
Backup heater
Provides additional heating in case of cold outdoor
temperatures. Also serves as backup in case of
malfunctioning of the outdoor unit.
v
Manometer
Allows readout of the water pressure in the water circuit.
w
Flow sensor
Gives feedback to the interface about the actual flow. Based
on this information (and other), the interface adjusts the
pump speed.
x
Air purge valve
Remaining air in the water circuit will be automatically
removed via the air purge valve.
y
3way valve
Controls whether the water is used for space heating, or the
domestic hot water tank.
z
User interface (accessory)
aa
Flowthrough vessel
bb
Drain flexible pressure relief valve
cc
Air valve
Summary of Contents for ERLQ004CAV3
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