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These instructions are exclusively intended for
qualified contractors and authorized installers.
● Work on the refrigerant circuit with flammable
refrigerant in safety group A2L may only be
carried out by authorized heating contractors.
These heating contractors must be trained
in accordance with EN 378 Part 4 or IEC
60335-2-40, Section HH. The certificate of
competence from an industry accredited body
is required.
● Brazing / soldering work on the refrigerant
circuit may only be carried out by personnel
certified in accordance with ISO 13585 and
AD 2000, Datasheet HP 100R. And only
contractors quaiified and certified for the
processes can perform brazing / soldering
work. The work must fall within the range of
applications purchased and be carried out in
accordance with the prescribed procedures.
Soldering / brazing work on accumulator
connections requires certification of personnel
and processes by a notified body according to
the Pressure Equipment Directive (2014/68/
EU).
● Work on electrical equipment may only be
carried out by a qualified electrician.
● Before initial commissioning, all safety - related
points must be checked by the particular
certified heating contractors. The system must
be commissioned by the system installer or a
qualified person authorized by the installer.
DANGER
● Do not use means to accelerate the defrosting
process or to clean, other than those
recommended by the manufacturer.
● The appliance shall be stored in a room
that does not have continuously operating
ignition sources (for example: open flames,
an operating gas appliance or an operating
electric heater).
● Do not pierce or burn the unit.
● Be aware that refrigerants may be odorless.
WARNING
● Appliance shall be installed, operated
and stored in a room that meets special
requirements and has an area limit as shown
in sections 2.3.2.
WARNING
2.3.1 System Layout Requirements
2.3.1.1 Unit Installation Requirements
The outdoor unit shall be located in a well-ventilated
location other than the occupied space, such as in the
open air.
For installation of the indoor unit, refer to the
corresponding installation and operation manual.
If an indoor unit is installed in an unventilated area, the
area shall be so constructed that should any refrigerant
leak, it will not stagnate so as to create a fire or explosion
hazard.
● The appliance shall be stored in a well-
ventilated area where the room size
corresponds to the room area as specified for
operation.
● The appliance shall be stored in a room
that does not have continuously operating
open flames (for example an operating gas
appliance) and ignition sources (for example,
an operating electric heater).
WARNING
2.3.1.2 Piping Installation Requirements
Low temperature solder alloys, such as lead/tin alloys,
are not acceptable for pipe connections.
Reusable mechanical connectors and flared joints are
not allowed indoors.
(EN 60335-2-40 Standard Requirements).
Mechanical connectors used indoors shall comply with
ISO 14903. When mechanical connectors are reused
indoors, sealing parts shall be renewed. When flared
joints are reused indoors, the flaring part shall be re-
fabricated.
Flexible refrigerant connectors (such as connecting lines
between the indoor and outdoor unit) that may become
displaced during normal operations shall be protected
against mechanical damage.
(IEC 60335-2-40 Standard Requirements).
The refrigerating systems shall use only permanent
joints indoors except for site-made joints directly
connecting the indoor unit to the refrigerant piping, or
factory made mechanical joints in compliance with ISO
14903.
(IEC 60335-2-40 Standard Requirements).
Equipment pipes in the occupied space in question must
be installed in such a way that it is protected against
accidental damage.
● Installation of pipe-work shall be kept to a
minimum.
● Pipework shall be protected from physical
damage and shall not be installed in an
unventilated space, if that space is smaller
than Amin in Table 1.
● Compliance with national gas regulations
shall be observed;
● Mechanical connections made shall be
accessible for maintenance purposes.
NOTE
Summary of Contents for KMF-80 DVR5
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