Additional Refrigerant Charge - MAXA 2600 W Manual Usuario

b) Closing stop valve
1. Remove the cap and turn the valve clockwise with the hexagon wrench.
2. Securely tighten the valve until the shaft contacts the main body seal.
Make sure to tighten the cap securely. For the tightening torque, refer to the table above.
Always use a charge hose for service port connection.
!
CAUTION
After tightening the cap, check that no refrigerant leaks are present.
 Using the vacuum pump
1. Loosen and remove the maintenance nuts of stop valves A and B, and connect the charge hose of the manifold valve to
the service port of stop valve A. (Be sure that stop valves A and B are both closed)
2. Connect the joint of the charge hose with the vacuum pump.
3. Open the Lo-lever of the manifold value completely.
4. Turn on the vacuum pump. At the beginning of pumping, loosen the maintenance nut of stop valve B a little to check
whether the air comes in (the sound of the pump changes and the indicator of compound meter turns below zero). Then
fasten the maintenance nut.
5. When the pumping has finished, close the Lo-lever of the manifold valve completely and turn off the vacuum pump. Make
pumping for 15 minutes or more and check that the compound meter indicates -76cmHg (-1X10 Pa)
6. Loosen and remove the cap of stop valves A and B to open stop valve A and B completely, then fasten the cap.
7. Disassemble the charge hose from the service port of stop valve A, and fasten the nut.

5.7.4. Additional Refrigerant Charge

service port
seal shaft hexagon hole
O u t d o o r
u n it
A
B
S t o p v a lv e
maintenance nut
cap
In d o o r
u n it
G a s s id e
C
L iq u id s id e
D
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