Haier AV08NMSETA Service Manual page 21

■
Grounding wire should be connected with the grounding bar. The grounding wire can not be connected to the gas
pipe, water pipe, lightening rod or the telephone grounding wire. Improper grounding may cause
■
Units installed on roof should have appropriate access and handrail.
■
Use the wrench to fasten the nut and flare at proper torque. Excessive torque may cause flared section to broke
leading to refrigerant leakage.
■
After refrigerant pipe installation, please take nitrogen leakage test to avoid refrigerant leakage.
■
R410A is the only permitted refrigerant.
■
To avoid mischarging wrong refrigerant, the check valve diameter is changed for R410A. To strengthen the pipe,
the flared pipe dimension is also changed. Please use R410A specified tools as shown below.
R410A specified tools
Gauge manifold
1
Charge hose
2
Electronic weight for charging R410A
3
Torque wrench
4
Flare tool
5
Copper pipe gauge for adjusting projecting margin
6
Vacuum pump fitting
7
Leakage detector
8
When charging refrigerant, the refrigerant must be in liquid state from the tank.
■
To prevent EMC interference on other appliances, please keep indoor unit, outdoor unit, power cable and
connecting wire at least 1m away from those appliances .
■
Fluorescent lamp (reverse phase or rapid start type) may interfere the remote controller's signal. Please install
indoor unit away from fluorescent lamp. The farther the better.
For installation, please review the items below:
■
Is the connected units quantity and the total capacity in the allowable range?
■
Is the refrigerant pipe length in the limited range?
■
Is the pipe size proper? And if the pipe installed horizontally?
■
Is the branch pipe installed horizontally or vertically?
■
Is the additional refrigerant counted correctly and weighed by the standard balance?
■
Is there refrigerant leakage?
■
Is all the indoor power supplies can be on/off simultaneously?
■
Is the power voltage in compliance with the data marked on the rating label?
■
Is the address of indoors has been set?
CAUTION
Range: HP >4.5MPa, LP >2MPa
Pressure: HP:5.3MPa, LP:3.5MPa
No other means permitted
Vacuum pump must be equipped with check valve
Only Helium detector permitted
19 19
electric shock.
Remarks