Reference Manual; Safety Precaution - Mitsubishi Electric Mr.Slim PLA-RP100AA2 Service Manual

REFERENCE MANUAL

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1-1. OUTDOOR UNIT'S SERVICE MANUAL
Service Ref.
PUHZ-RP100/125/140VHA
PUHZ-RP100/125/140YHA
PUHZ-RP200/250YHA
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PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK
SUZ-KA·VA.TH
PUHZ-RP100/125/140VHA2
PUHZ-RP100/125/140YHA2
PU(H)-P100VHA.UK
PU(H)-P100/125/140YHA.UK
PUHZ-P100/125/140VHA.UK
1-2. TECHNICAL DATA BOOK
Series (Outdoor unit)
PUHZ-RP·VHA(-A)
PUHZ-RP·YHA(-A)
PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK
PUHZ-RP·VHA2
PUHZ-RP·YHA2
PUHZ-P·VHA
PU(H)-P·VHA
PU(H)-P·YHA
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SAFETY PRECAUTION

CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilising refrigerant R407C
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use "low residual oil piping"
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Store the piping to be used during installation
indoors with keep both ends sealed until just
before brazing.
(Store elbows and other joints in a plastic bag.)
If dust, dirt, or water enters the refrigerant cycle,
deterioration of the oil and compressor trouble may result.
Use ESTER , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enter, that can cause
deterioration of refrigerant oil etc.
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Service Manual No.
OC334
OC338
OC336
OC322
OC374
OC379
OC359
Manual No.
OCS01
OCS02
OCS05
OCS06
OCS07
Use liquid refrigerant to charge the system.
If gas refrigerant is used to seal the system, the composition
of the refrigerant in the cylinder will change and performance
may drop.
Do not use a refrigerant other than R407C.
If another refrigerant (R22, etc.) is used, the chlorine in the
refrigerant may cause the lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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