Carrier 42GCVPH010-303P - Refrigerant and Operation Safety

3
• The appliance shall be stored in a room without continuously operating ignition
sources (for example: open ames, an operating gas appliance or an operating
electric heater).
• Be aware that refrigerants may not contain an odour.
• Do not pierce or burn as the appliance is pressurized. Do not expose the
appliance to heat, ame, sparks, or other sources or ignition. Else, it may
explode and cause injury or death.
• For R32 model, use pipes, are nut and tools which is specied for R32
refrigerant. Using of existing (R22) piping, are nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and possibly result in
explosion and injury.
• Thickness of copper pipes used R32 must be more than 0.8 mm. Never use
copper pipes thinner than 0.8 mm.
• Do not perform are connection inside a building or dwelling or room, when
joining the heat exchanger of indoor unit with interconnection piping. Refrigerant
connection inside a building or dwelling or room must be made by brazing or
welding. Joint connection of indoor unit by aring method can only be made
at outdoor or at outside of building or dwelling or room. Flare connection may
cause gas leak and ammable atmosphere.
• After completion of installation or service, conrm there is no leakage of
refrigerant gas. It may generate toxic gas when the refrigerant contacts with re.
• Appliance and pipe-work shall be installed, operated and stored in a room with a
oor area larger than A
min
m
2
.
How to get A
min
m
2
: A
min
= (M / (2.5 x 0.22759 x h
0
))
2
M is the refrigerant charge amount in appliance in kg, h
0
is the installation height
of the appliance in m: 0.6 m for oor standing/1.8 m for wall mounted/1.0 m for
window mounted/2.2 m for ceiling mounted. (For these units recommend
installation height 2.5 m)
• Comply with national gas regulations.
• Do not add any other devices without factory advice.
WARNING
• After installation work, make sure below before operation.
- Connection pipes are connected properly and no leakage.
- Packed valves are fully open.
Running compressor without open packed valves may cause abnormal high
pressure and parts failure.
Leakage at connection piping may suck air and make further high pressure
cause burst and injure.
• During pump down work make sure below process.
- Don’t mix air into the refrigerant cycle.
- Stop the compressor before removing piping after packed valves are
fully closed.
Removing piping under the compressor running and packed valves open,
air might be sucked and refrigeration cycle pressure becomes abnormally high,
and it causes burst or injury on persons.
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