Mitsubishi Electric PLA-A12EA8 Service Manual page 5

[2] Cautions for service
(1) Perform service after recovering the refrigerant left in the unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[3] Additional refrigerant charge
When charging directly from cylinder
(1) Check that cylinder for R410A on the market is a syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Electronic weighing scale
[4] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name
Gauge manifold
1
Charge hose
2
Electronic weighing scale
3
Gas leak detector
4
Adaptor for reverse flow check
5
Refrigerant charge base
6
Refrigerant cylinder
7
Refrigerant recovery equipment
8
TCH120A
· Use the existing fitting specifications . (UNF1/2)
· Use high-tension side pressure of 768.7 PSIG [5.3MPa·G] or over.
· Use pressure performance of 738.2 PSIG [5.09MPa·G] or over.
· Use the detector for R410A.
· Attach on vacuum pump.
· Top of cylinder (R410A refrigerant)
· Cylinder with syphon
5
Unit
Specifications
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