7 Installation
Installer reference guide
46
ERGA04~08DAV3(A) + 08S23DAV
Daikin Altherma – Low temperature split
4P499573-1A – 2018.11
NOTICE
Make sure to select and install the safety thermostat
according to the applicable legislation.
In any case, to prevent unnecessary tripping of the safety
thermostat, it is recommended that …
▪ … the safety thermostat is automatically resettable.
▪ … the safety thermostat has a maximum temperature
variation rate of 2°C/min.
▪ … there is a minimum distance of 2 m between the
safety thermostat and the 3‑way valve.
INFORMATION
After it is installed, do NOT forget to configure the safety
thermostat. Without configuration, the indoor unit will
ignore the safety thermostat contact.
INFORMATION
The preferential kWh rate power supply contact is
connected to the same terminals (X5M/9+10) as the safety
thermostat. It is only possible for the system to have
EITHER preferential kWh rate power supply OR a safety
thermostat.
7.9.17
To connect the anti-legionella heater
power supply
WARNING
The anti-legionella heater MUST have a dedicated power
supply and MUST be protected by the safety devices
required by the applicable legislation.
CAUTION
To guarantee the unit is completely earthed, always
connect the anti-legionella heater power supply and the
earth cable.
Make sure that the power supply is in accordance with the anti-
legionella heater capacity, as listed in the table below.
Anti-legionella
heater capacity
Power supply
Maximum running
current
2.4 kW
1N~ 230 V
11 A
Connect the anti-legionella heater power supply cable as follows:
X8M
F2B
Q1DI
a
b
a
Factory-mounted cable connected to the anti-legionella
heater contactor inside the lower switch box (K3M)
b
Field wiring (see below)
1N~, 50 Hz
230 V AC
SWB 2
Q1DI
1
2
3
4
F2B
I
I
L
N
X8M
1
2
K3M
3
4
F2B
Overcurrent fuse (field supply). Recommended: 2‑pole;
20 A; curve 400 V; tripping class C.
K3M
Contactor (in the lower switch box)
Q1DI
Earth leakage circuit breaker (field supply)
SWB 2
Lower switch box
X8M
Terminal (field supply)
7.10
Finishing the outdoor unit
installation
7.10.1
To finish the outdoor unit installation
1
Insulate and fix the refrigerant piping and interconnection cable
as follows:
f
b
a
e
d
c
a
Gas pipe
b
Gas pipe insulation
c
Interconnection cable
d
Liquid pipe
e
Liquid pipe insulation
f
Finishing tape
2
Install the service cover.
7.11
Finishing the indoor unit
installation
7.11.1
To close the indoor unit
1
Close the cover of the switch box.
2
Put the switch box back into place.
3
Reinstall the top panel.
4
Reinstall the side panels.
5
Reinstall the front panel.
6
Reconnect the cables to the user interface panel.
7
Reinstall the user interface panel.
NOTICE
When closing the indoor unit cover, make sure that the
tightening torque does NOT exceed 4.1 N•m.
