Maintenance Instructions; Relocation Procedures - INVENTOR DR2VI32-09WFI Benutzer- & Installationshandbuch

Inspection
on system leakage
prior to disassembly
Inspection on
operational state
Refrigerant recovery
by the system
Cleaning of the indoor
unit and connecting
pipes with inert gas
Installation as required
in standards
Note: in case relocation is required, the joint of evaporator gas/liquid pipes of the indoor unit shall be cut off with a cutting
knife. Connection is only allowed after re-flaring (the same to the outdoor unit).
Maintenance Precautions
●For all the faults requiring welding the refrigeration pipelines or components inside the refrigeration system of R32
refrigerant air conditioners, maintenance at the user's site is never allowed.
●For the faults requiring radical disassembly and bending operation of the heat exchanger, such as the replacement of the
outdoor unit chassis and integral disassembly of the condenser, inspection and maintenance at the user's site are never
allowed.
●For the faults requiring replacement of the compressor or parts & components of refrigeration system, maintenance at
the user's site is not allowed.
●For other faults not involved in the refrigerant container, internal refrigeration pipelines and refrigeration elements, the
maintenance at the user's site is allowed, including the cleaning and dredging of the refrigeration system requiring no
disassembly of refrigeration elements and no welding.
●In case replacement of gas/liquid pipes is required during maintenance, the joint of evaporator gas/liquid pipes of the
indoor unit shall be cut off with a cutting knife. Connection is only allowed after re-flaring (the same to the outdoor unit).
●All the operators or the maintenance personnel involved in refrigerating circuits shall be provided with the effective
certificate issued by an industry-accepted assessment institute, to ensure that they are qualified for safety disposal of
refrigerant as required in the assessment regulations.
●The equipment can only be maintained and repaired as per the method recommended by the manufacturer. In case
the assistance from personnel of other disciplines is required, the assistance shall be supervised by the personnel with
qualification certificate involved in flammable refrigerant.
●Before operation, the refrigerant leaked in the room is not allowed.
●The area of the room in which maintenance is made shall be in line with the nameplate.
●Continuous ventilation shall be maintained during maintenance.
●Open fire or high-temperature heat source higher than 548 degree which can easily give birth to open fire is not allowed
inside the room within the maintenance area.
8 8

Relocation Procedures

Safety discharge of
refrigerant
Safety discharge of
refrigerant

Maintenance Instructions

Precautions
Qualification Requirements of Maintenance Personnel
Inspection on Maintenance Environment
Disassembly
Disassembly