Mitsubishi Electric EHSC-MEC Service Manual page 6

[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) If moisture or foreign matter might have entered the refrigerant piping during service, ensure to remove them.
[2] Additional refrigerant charge
When charging directly from refrigerant cylinder
(1) Check that cylinder for R410A on the market is syphon type.
(2) Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Electronic weighing scale
[3] Service tools
Use the service tools below as exclusive tools for R410A 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
OCH571D
· Only for R410A
· Use the existing fitting specifications . (UNF1/2)
· Use high-tension side pressure of 5.3 MPa·G or over.
· Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
· Use the detector for R134a, R407C or R410A
· Attach on vacuum pump.
· Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
6
Unit
Specifications
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