Haier AB072MRERA - Page 566

558
Install the two outdoor ducts at a certain gradient (no less than 1/30) to avoid the water owing backward.
Meanwhile the three ducts (two outdoor ducts, one indoor duct) all need the heat insulation material against the dew.
Installation distance between air discharging hole and air inlet hole should be 3 times longer than duct.
ERV0500ANN ERV0800ANN ERV1000ANN
Maintenance space:
Aluminum foil
Gradient more than 1/30
Maintenance
space
Upper of unit