Troubleshooting Guide
Additional gas charging
(Gas leakage)
•When refrigerant is insufficient by leakage, recharge the unit with the refrigerant up to normal oper- ating suction pressure.
•Use the graph or the equation below to get operating suction pressure according to indoor and out- door temperature.
Suction pressure was measured at
The method of using graph
-Find outdoor temperature.
-Find indoor temperature onto the curve of outdoor temperature.
-Read suction pressure at the axis of ordinates.
The method of using equation
Suction Pressure (Kg/cm2.g)
Operating Suction Pressure (For R410A)
(According to Indoor & Outdoor Temperature)
| (At operating the Unit for 10 minutes) | |
13 |
| |
12 | 50˚C | |
| ||
11 | 40˚C | |
10 | 30˚C | |
9 | 20˚C | |
8 | 10˚C | |
0˚C | ||
|
7
6
5
5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
Indoor Temp. (˚C)
Outdoor Temp. (˚C)
P = 3 + 0.0123 x Tout1.5 + 0.8 x Tin0.5
Where, P : Suction Pressure(kg/cm2.g)
Tout : Outdoor Temperature(˚C)
Tin : Indoor Temperature(˚C)