Haier AU062FPERA - Page 19

17
CAUTION
R-410A specied tools Remarks
1 Gauge manifold Range: HP>4.5MPa, LP>2MPa
2 Charge hose Pressure: HP: 5.3MPa, LP: 3.5MPa
3 Electronic balance for charging R410A Can not use the measurable charging tank
4 Torque spanner
5 Flare tool
6 Copper pipe gauge for adjusting projecting margin
7 Vacuum pump adapter Must be with reverse stop valve
8 Leakage detector Can not use freon leakage detector, but the He detector
• Execute earthing for the unit. But the earthing wire can not be connected to the gas pipe, water pipe, lightening
rod or the telephone earthing wire. Improper earthing will cause electric shock.
• Don't install the unit at the place where leaks the ammable gas. Or it will cause re.
• Execute the water drainage pipe according to the manual, improper installation will cause water leakage to wet
the family things.
• The outdoor fan can not face to the ower or the other vegetable, or the blowing gas will make the ower dried
up.
• Please ensure the maintenance room, if not, it will cause the maintenance person damaged.
• When installing the unit on the roof or the other high place, to prevent the person falling down, please set the
xed ladder and the railing at the passage.
• Use the two-end spanner, and fasten the nut at proper torque. Don't fasten the nut excessively against the ared
section broken. Or it will cause refrigerant leakage and lack of oxygen.
• Take measures for heat insulation to the refrigerant pipe, or there will be water leakage or dew drop to wet the
family things.
• After nishing the refrigerant pipe, make leakage test by charging the nitrogen. In case the refrigerant leaks in a
small room and exceeds the limited concentration, it will cause lack of oxygen.
• Don't use the other refrigerant except for R410A. The R410A pressure is 1.6 times higher than R22 pressure. The
refrigerant R410A tank is marked with pink sign.
• Against charging different refrigerant, we changed the stop valve diameter of the R410A unit. To enhance
the compression consistence, we also changed the ared pipe dimension. Prepare the R410A specially tools
according to the below table.
• When charging refrigerant, the refrigerant must be taken out as liquid state from the tank.