Refrigerant Recharging At Servicing - Sharp AY-X10CR Service Manual

3.6 Refrigerant Recharging at Servicing

When it becomes necessary to recharge refrigerant, charge the specified amount of new refrigerant according to
the following steps.
(For details, see the instruction manual prepared by the equipment manufacturer)
1) Connect the charge hose to the outdoor unit's service port.
2) Connect the charge hose to the vacuum pump abapter. At this time, keep the control valves in the fully
opened position.
3) Place the handle Lo in the fully opened position, and turn ON the vacuum pumpÅfs power source. (For the
evacuating time, refer to the equipment manufacturer's manual)
4) When the compound gauge's pointer has indicated - 0.1 MPa (- 76 cmHg), place the handle Lo in the fully
closed position, and turn OFF the vacuum pump's power source. Keep this state for 1 ~ 2 minutes, and
ascertain that the compound gaugeÅfs pointer does not refurn.
5) Charge liquid refrigerant by using the electronic balance according to the steps described in Section 3.2 (2)
(pages 49).
49
AY-X10CR
AE-X10CR
AY-X10CR-N
AE-X10CR-N