2 Specific installer safety instructions
Installation and operation manual
6
EKVDX32~100A2VEB
VRV system air conditioner
4P555815-1A – 2021.08
WARNING
If the supply cord is damaged, it MUST be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
WARNING
The VAM and the EKVDX indoor unit MUST share the
same electrical safety devices and power supply.
CAUTION
▪ Each EKVDX unit has to be connected to a separate
user interface. Only a safety system compatible remote
controller can be used as the user interface. See
technical data sheet for remote controller compatibility
(e.g. H-type user interface like BRC1H52/82*).
▪ R32 refrigerant: the user interface MUST be installed in
one of the rooms the EKVDX unit is discharging into.
▪ R410A refrigerant: the user interface can also be
installed in e.g. the hallway.
2.1
Instructions for equipment using
R32 refrigerant
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
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)
and have a room size as specified below.
WARNING
Make sure installation, servicing, maintenance and repair
comply with instructions from Daikin and with applicable
legislation and are executed ONLY by authorised persons.
WARNING
If one or more rooms are connected to the unit using a
duct system, make sure:
▪ there are NO operating ignition sources (example: open
flames, an operating gas appliance or an operating
electric heater) in the room where the unit is installed,
in case the floor area is less than the minimum floor
area A
min
(m²) of the rooms that are served.
▪ NO auxiliary devices, which may be a potential ignition
source, are installed in the duct work (example: hot
surfaces with a temperature exceeding 700°C and
electric switching device);
▪ only auxiliary devices approved by the manufacturer
are used in the duct work;
▪ the air outlet can be connected directly to multiple
rooms by ducting. Do NOT use spaces such as a false
ceiling as a duct for the air outlet.
▪ the height of the air extraction opening from the room
MUST be be equal or below the refrigerant release
point.
NOTICE
▪ Precautions shall be taken to avoid excessive vibration
or pulsation to refrigeration piping.
▪ Protection devices, piping and fittings shall be
protected as far as possible against adverse
environmental effects.
▪ Provision shall be made for expansion and contraction
of long runs of piping.
▪ Piping in refrigerating systems shall be designed and
installed such as to minimise the likelihood of hydraulic
shock damaging the system.
▪ The indoor equipment and pipes shall be securely
mounted and guarded such that accidental rupture of
equipment or pipes cannot occur from events such as
moving furniture or reconstruction activities.
CAUTION
Do NOT use potential sources of ignition in searching for
or detection of refrigerant leaks.
NOTICE
▪ Do NOT re-use joints and copper gaskets which have
been used already.
▪ Joints made in installation between parts of refrigerant
system shall be accessible for maintenance purposes.
2.1.1
Installation space requirements
If the system uses R32 refrigerant, extra safety measures are
required because R32 refrigerant is mildly flammable. This means
that the system is restricted with respect to the total refrigerant
charge and/or the floor area that is served.
WARNING
In case the appliance contains R32 refrigerant, refer to
"2.1.2 To determine the charge limitations"
NOTICE
▪ Pipework shall be protected from physical damage.
▪ Installation of pipework shall be kept to a minimum.
