Midea MGA-D10/N1 Manual page 61

Maintenance
● Connect the refrigerant gas cylinder or a filling cylinder to the low pressure line pressure gauge
connection.
● Fill with the quantity of refrigerant gas indicated on the rating plate of the unit.
● Always check the superheating and subcooling values. In the nominal operating conditions for the
appliance, these should be between 5 and 10°C and between 4 and 8°C respectively.
● After a couple of hours of operation, check that the liquid indicator indicates circuit dry (dry-green)
Note:
1) In the event of partial leaks, the circuit must be completely emptied before being refilled
The R410A refrigerant must only be filled in the liquid state.
Operating conditions other than nominal conditions may produce considerably different values, Seal testing
or identification of leaks must only be carried out using R410A refrigerant gas, checking with a suitable leak
detector.
2) The use of a different refrigerant or oils may cause serious damage to the compressor.
Oxygen, acetylene or other inflammable or poisonous gas must never be used in the refrigerant circuit as
they may cause explosion or poisoning.
7.3.3 Disposal
Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special
treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate
collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous
substances can leak into the groundwater and get into the food chain, damaging your health and well-being,
60
MCAC-UTSM-2008-11
Installation