Toshiba RAS-2M10G3AVG-E Installation Manual page 8

Outdoor Unit
• The installation of pipe work shall be kept to a minimum.
• The following must be certainly done during pump down.
• Do not incorporate air into the refrigeration cycle.
• Close the 2 service valves. Stop the compressor and remove the refrigerant pipe.
If the refrigerant pipe is removed when the compressor is operating and service valves are
opened, the refrigerant cycle will inhale unwanted matter such as air and the pressure in
the cycle becomes abnormally elevated. It may cause a burst or injury.
• Do not modify the power cable, connect the cable midway, or use a multiple outlet
extension cable. Doing so may cause contact failure, insulation failure, or excess current,
resulting in re or electrical shock.
• If you detect any damage, do not install the unit. Contact your supplying dealer
immediately.
• Never modify this unit by removing any of the safety guards or bypassing any of the safety
interlock switches.
• Do not wash air conditioners with pressure washers.
Electric leaks may cause electric shocks or res.
• Be sure to comply with local regulations/codes when running the wire from the outdoor
unit to the indoor unit. (Size of wire and wiring method etc.)
• When installing the air conditioner in a small room, provide appropriate measures to
ensure that the concentration of refrigerant leakage occur in the room does not exceed the
critical level. It is not dangerous refrigerant; it has not toxicity. However, a concentration
above 0.3 kg/m³ as criterion still causes suffocation. The volume of refrigerant charged
to the multi system air conditioner is more than the volume charged to a conventional
individual system.
• Before operating the air conditioner after having completed the work, check that the
electrical parts control box cover of the indoor unit and valve cover of the outdoor unit are
closed, and set the circuit breaker to the ON position. You may receive an electric shock
etc. if the power is turned on without rst conducting these checks.
• Make sure drain hose insulation if cooling operation is used at sub-zero ambient
temperature.
• 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.
WARNING
WARNING
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Installation Manual