Airo GORBEA R32 Manual De Usuario E Instalacion página 57

Installation Instructions
Refrigerant Charging and Trial Running
● Refrigerant Charging
1. The refrigerant has been charged into the outdoor unit before shipment, while additional
refrigerant still need be charged into the refrigerant pipe during the field installation.
2. Check if the liquid valve and the gas valve of the outdoor unit are closed fully.
3. As shown in the following figure (Fig.9), expel the gas inside the indoor unit and refrigerant
pipe out by the vacuum pump.
4. When the compressor is not running, charge the refrigerant into the refrigerant pipe from
the liquid valve of the outdoor unit (do not do it from the gas valve).
● Calculation of the Additional Refrigerant Charging
1. Refrigerant Charge in the Outdoor Unit before Shipment
Table 9
GORBEA 2X1
GORBEA 3X1
Notes:
(1). The refrigerant charge mentioned in the table above is not include those charged
additionally in the indoor unit and the refrigerant pipe.
(2). The amount of the additional refrigerant charge is dependent on the diameter and length
of the liquid refrigerant pipe which is decided by the actual yield installation requirement.
(3). Record the additional refrigerant charge for future maintenance.
Manometer
"LO" knob
Gas Valve
Model
Manometer
"HI" knob
Hose
vacuum pump
Fig.9
Refrigerant Charge (kg)
55
1.10
1.50