Specifications

40
(6) Additional Charge
• The refrigerant gas has already charged into the outdoor unit. For the piping length of 5m. Additional
refrigerant charge after vacuuming is not necessary.
• When the piping length is more than 5m, please use the table below (unit in gram).
MODEL 7m 10m 15m
MHDC020A/AR 40 100 200
MHDC025A/AR 80 200 400
MHDC030A/AR 90 225 450
(7) Overall Checking
• Ensure the following, in particular :
1) The unit is mounted solidly and rigid in position.
2) Piping and connections are leak proof after charging.
3) Proper wiring has been done.
• Drainage check - pour some water into drain pan.
• Test run
1) Conduct a test run after water drainage test and gas leakage test.
2) Watch out for the following :
a) Is the electric plug firmly inserted into the socket?
b) Is there any abnormal sound from unit?
c) Is there any abnormal vibrations with regard to unit itself or piping?
d) Is there smooth drainage of water?
• Check that :
1) Outdoor blower is running, with warm air blowing off the discharge grille (cooling cycle).
2) Indoor blower is running and discharge cool air (cooling cycle).
3) Suction (low side) pressure as recommended.
4) The remote controller incorporate a 3 minute delay in there circuit. Thus, it requires about 3
minutes before the outdoor unit can start up.
(8) Standard Operating Condition
Cooling Only
Temperature Ts °C Th °C
minimum indoor temperature 19.4 13.9
maximum indoor temperature 26.7 19.4
minimum outdoor temperature 19.4 13.9
maximum outdoor temperature 46.0 24.0
Heat Pump Unit
Temperature Ts °C Th °C
minimum indoor temperature 15.0 -
maximum indoor temperature 26.7 -
minimum outdoor temperature - 2.0 - 3.0
maximum outdoor temperature 24 18
Ts : Dry bulb temperature
Th : Wet bulb temperature