2 | General safety precautions
Installer reference guide
9
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
4P600463-7G – 2022.09
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 case the floor area is less than the
minimum floor area A (m²).
▪ 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;
▪ air inlet AND outlet are connected directly to the same room by ducting. Do NOT
use spaces such as a false ceiling as a duct for the air inlet or outlet.
WARNING
▪ Take precautions to avoid excessive vibration or pulsation to refrigeration piping.
▪ Protect the protection devices, piping and fittings as much as possible against
adverse environmental effects.
▪ Provide space for expansion and contraction of long runs of piping.
▪ Design and install piping in refrigerating systems such as to minimise the
likelihood of hydraulic shock damaging the system.
▪ Mount the indoor equipment and pipes securely and protect them to avoid
accidental rupture of equipment or pipes in case of 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.
Installation space requirements
WARNING
If appliances contain R32 refrigerant, the floor area of the room in which the
appliances are installed, operated and stored MUST be larger than the minimum
floor area defined in table below A (m
2
). This applies to:
▪ Indoor units without a refrigerant leakage sensor; in case of indoor units with
refrigerant leakage sensor, consult the installation manual
▪ Outdoor units installed or stored indoors (e.g. winter garden, garage, machinery
room)
NOTICE
▪ Protect pipework from physical damage.
▪ Keep the pipework installation to a minimum.
To determine the minimum floor area
1 Determine the total refrigerant charge in the system (= factory refrigerant
charge + additional refrigerant amount charged).
To Next Page
Loading...
Need help?
General
