Preparation; Preparing The Installation Site; Installation Site Requirements Of The Outdoor Unit; Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates - Daikin Altherma EJHA04AAV3 Installation Manual

NOTICE
▪ If you install the bottom plate heater, you may lower the
operation range of the heat pump to Ta≥–15°C using
field setting [8-0E]=–15°C.
▪ If you do not install the bottom plate heater, keep
[8-0E]=–5°C.
4

Preparation

4.1

Preparing the installation site

WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
4.1.1 Installation site requirements of the
outdoor unit
Mind the following spacing guidelines:
b b
>250 a >250
b b
a
a Air outlet
b Air inlet
NOTICE
The height of the wall on the outlet side of the outdoor unit
MUST be ≤1200 mm.
The outdoor unit is designed for outdoor installation only, and for the
following ambient temperatures:
Space heating operation
Domestic hot water production
Special requirements for R32
The outdoor unit contains an internal refrigerant circuit (R32), but
you do NOT have to do any refrigerant field piping, or refrigerant
charging.
The total refrigerant charge in the system is ≤1.842 kg, so the
system is NOT subjected to any requirements to the installation
room. However, mind the following requirements and precautions:
WARNING
▪ Do NOT pierce or burn.
▪ Do NOT use means to accelerate the defrosting
process or to clean the equipment, other than those
recommended by the manufacturer.
▪ Be aware that R32 refrigerant does NOT contain an
odour.
EJHA04AAV3
Daikin Altherma hybrid monobloc – Heat pump module
4P530607-1B – 2018.10
b
a >250 a
a
(mm)
–15~25°C
–15~35°C
WARNING
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without continuously
operating ignition sources (example: open flames, an
operating gas appliance or an operating electric heater).
WARNING
Make sure installation, servicing, maintenance and repair
comply with instructions from Daikin and with applicable
legislation (for example national gas regulation) and are
executed only by authorised persons.
4.1.2 Additional installation site requirements
of the outdoor unit in cold climates
Protect the outdoor unit against direct snowfall and take care that the
outdoor unit is NEVER snowed up.
c
a Snow cover or shed
b Pedestal
c Prevailing wind direction
d Air outlet
In any case, provide at least 300 mm of free space below the unit.
Additionally, make sure the unit is positioned at least 100 mm above
the maximum expected level of snow. See
outdoor unit" on page 10 for more details.
In heavy snowfall areas it is very important to select an installation
site where the snow will NOT affect the unit. If lateral snowfall is
possible, make sure that the heat exchanger coil is NOT affected by
the snow. If necessary, install a snow cover or shed and a pedestal.
4.2

Preparing water piping

NOTICE
In case of plastic pipes, make sure they are fully oxygen
diffusion tight according to DIN 4726. The diffusion of
oxygen into the piping can lead to excessive corrosion.
NOTICE
Expansion vessel. Make sure that an expansion vessel is
installed in the water circuit (at the space heating water
inlet of the boiler).
In case of *HY2KOMB28+32AA gas boiler, the expansion
vessel is available as option.
In case of third-party gas boiler, the expansion vessel is
field supplied.
For more information about the expansion vessel, see the
installer reference guide.
4 Preparation
a
c
b
"5.2 Mounting the
Installation manual
7