32
Before starting the bleeding of the system, it is advisable to oil the quick connections with antifreezing oil
(HAB OIL), and then connect and disconnect once the system, in order ensure that seals of the piston.
Joint the service connection to the low pressure pipe of the vacuum pump, according to above instructions, the
screw it to the female aeroquip connection of the indoor/outdoor connection pipe.
Make vacuum inside the indoor unit (10 mm Hg. abs.).
Restore the freon charge (see table). Then detach the vacuum pump (check the sealing of the aeroquip quick connections).
The full charge of refrigerant must be restored to the indoor unit.
Outdoor unit (little bag) bleeding.
Connect the vacuum pump already equipped with service connection to the female aeroquip connector of outdoor
unit (little bag) then to perform vacuum operation (vacuum 10 mm Hg abs.).
Inside the outdoor unit make vacuum only, without freon charge.
Oil both indoor and outdoor unit aeroquip connections with antifreezing oil (HAB OIL), then join the
units (torque 150 ÷ 165 kgcm).
Wait 10 minutes to equalize the pressure inside the system and then start the air
conditioner, checking anyway the seal of the connections. Place the cover on the outdoor unit top.
Indoor unit bleeding
WARNING
WARNING
To Next Page
