33
[3] Service tools
Use the below service tools as exclusive tools for R407C 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)
(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.
Gravimeter
Unit
[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.
No.
Tool name Specifications
1
Gauge manifold
· Only for R407C
· Use the existing fitting
SPECIFICATIONS
. (UNF7/16)
· Use high-tension side pressure of 3.43MPa·G or over.
2
Charge hose
· Only for R407C
· Use pressure performance of 5.10MPa·G or over.
3
Electronic scale
—
4
Gas leak detector
· Use the detector for R134a or R407C.
5
Adaptor for reverse flow check
· Attach on vacuum pump.
6
Refrigerant charge base
—
7
Refrigerant cylinder
· For R407C · Top of cylinder (Brown)
· Cylinder with syphon
8
Refrigerant recovery equipment
—
To Next Page
Loading...
