Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 4

Observe the restrictions on the maximum
weight that a person can lift, which is spec-
ified in local regulations.
Failure to do so may result in injury.
[3] Installation
Installation
Do not install the unit where combustible
gas may leak.
If combustible gas accumulates around the unit, fire or
explosion may result.
Do not allow children to play with the pack-
ing materials.
Suffocation or serious injury may result.
Cut up the packing materials before dispos-
al.
All installation work must be performed by
qualified personnel in accordance with this
manual.
Improper installation may result in refrigerant leakage,
water leakage, serious injury, electric shock, or fire.
Seal all openings around pipes and wires to
keep out small animals, rainwater, or snow.
Failure to do so may result in current leakage, electric
shock, or damage to the unit.
[4] Piping Work
Piping Work
Piping work shall be kept to a minimum.
The pipes shall be protected from physical
damage.
Before heating the brazed sections, remove
the gas and oil that are trapped in the pipes.
Failure to do so may generate fire, resulting in serious
injury.
If the air conditioner is installed in a small
room, take measures to prevent the refriger-
ant concentration from exceeding the safety
limit in the event of refrigerant leakage.
Consult your dealer regarding the appropriate mea-
sures to prevent the allowable concentration from be-
ing exceeded. If the refrigerant leaks and the allowable
concentration is exceeded, hazards due to a lack of ox-
ygen in the room will result.
Install the unit in accordance with the in-
structions to minimize the risk of damage
from earthquakes and strong winds.
Improper installation will cause the unit to topple, re-
sulting in serious injury.
The unit must be securely installed on a
structure that can sustain its weight.
Failure to do so will cause the unit to fall, resulting in se-
rious injury.
Do not open the control box cover when
charging refrigerant.
Doing so may cause sparks, resulting in fire.
Do not install the unit where corrosive gas
may be generated.
Doing so can corrode the pipes, resulting in refrigerant
leakage and fire.
Do not purge the air using refrigerant. Use a
vacuum pump to evacuate the system.
Residual gas in the refrigerant lines will cause bursting
of the pipes or an explosion.
Do not use oxygen, flammable gas, or a re-
frigerant containing chlorine for air-tight-
ness testing.
Doing so may result in an explosion. Chlorine will dete-
riorate the refrigerant oil.
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