Cautions For Service; Service Tools - Mitsubishi Electric PLFY-P15VCM-E2 Technical & Service Manual

Split-type, heat pump air conditioners
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[1] Cautions for service

· After recovering the all refrigerant in the unit, proceed to working.
· Do not release refrigerant in the air.
· After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.
[2] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
· R407C cylinder available on the market has a syphon pipe.
· Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
Gravimeter
(2) Recharge in refrigerant leakage case
· After recovering the all refrigerant in the unit, proceed to working.
· Do not release the refrigerant in the air.
· After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

[3] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.
No.
Tool name
1
Gauge manifold
2
Charge hose
3
Electronic scale
4
Gas leak detector
5
Adaptor for reverse flow check
6
Refrigerant charge base
7
Refrigerant cylinder
8
Refrigerant recovery equipment
OCH463C
Unit
· Only for R407C
· Use the existing fitting SPECIFICATIONS . (UNF7/16)
· Use high-tension side pressure of 3.43MPa·G or over.
· Only for R407C
· Use pressure performance of 5.10MPa·G or over.
· Use the detector for R134a or R407C.
· Attach on vacuum pump.
· For R407C
· Top of cylinder (Brown)
· Cylinder with syphon
3 3
Specifications

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