SHARP HFC-134A
Instrukcja Serwisowa

10) Close the joint A which has been loosened in Step (7).
Low pressure
Slightly open the CB valve, and discharging gas, close A. (Inside purge of hose)
For HFC-134a
HFC-134a
SYSTEM ANALYZER

High pressure

CB

HFC-134a�p

A

11) At first open the VB valve of vacuum pump. Then, slowly open the LB and HB valves to evacuate the cycle. (Do not apply load to the vacuum pump.)
For HFC-134a

LB VB

Low High pressure pressure HB

HFC-134a
SYSTEM ANALYZER

HFC-134a�p

P

Q

Open in order of 1 - 2.

12) Execute vacuum evacuation for 20 minutes.(Keep the valves as shown in the figure of Step (11).) 13) After completion of vacuum evacuation close all the valves.
Stop the vacuum pump
For HFC-134a

Low LB VB

High HB

CB

pressure pressure

HFC-134a
SYSTEM ANALYZER

HFC-134a�p

14) Read the indication of charging cylinder. 15) Open the LB valve, and charge the specified quantity of refrigerant through the CB valve.

Low LB VB pressure

High pressure

CB

For HFC-134a
HFC-134a
SYSTEM ANALYZER

HFC-134a�p

Seeing the indication of charging cylinder, adjust the specified filling quantity at the CB valve.

9