Trouble Shooting - Haier AE072FCBKA Operation And Installation Manual

Installation Procedure
Figure 4
Air outlet grille
Air supply
No obstacles
within 1 m(0Pa)
Unit
Each air return and supply duct should fix to the floor precast slab by using an iron stand. Use glue to
seal the interface closely. Recommend the distance between the air return duct and the wall is more than
150mm.
The distance between air duct outlet and air conditioner outlet is according to the length of actually installed
air duct and in service behavior of the static pressure terminal: Installation sketch map for long and short
air duct is showed below, when connect to short air duct, using low static terminal (terminal color is white),
the distance between air duct outlet and air conditioner outlet is no more than 0.5m; when connect to long
air duct, using middle static terminal (terminal color is red), the distance between air duct outlet and air
conditioner outlet could be within 5m at this point.
Figure 5
sling dog
drain piping
air return duct
transition
air return shutter air duct
Drain piping of condensed water should keep a downhill grade of 1% or more. Use insulating pipe to cover
the drain piping of condensed water to keep warmth.
As figure shown, suspend and install the unit.
M8 broad foundation bolt
Figure 6
M8 suspension screw
M8 broad lock ring
M8 nut
Installation for air duct of indoor unit
1. Installation of air discharge duct
This type of unit uses circular air duct with its caliber of 180mm.
An additional transitive air duct is necessary for the circular air duct to connect to the air
supply inlet. It should be also connected to its respective air diffuser separately. See
Fig.1. Adjust the wind speed of each air diffuser outlet to keep in line on the whole, so
as to meet a demand of the air conditioner in the room.
transitive air duct
flexible joint
Indoor unit or static pressure box
Fig1: Duct connected
13
Return air bellows
Return air
joint of air diffuser
air outlet
air diffuser
duct
Unit
Figure 6
circular air duct
joint of air diffuser
air diffuser

Trouble Shooting

The following cases are not troubles.
Water flow sound is heard.
"Hua-Hua"
A sound of "Pi-Pa" is generated.
Smells are given off.
During operation, mist or steam are
blown out.
During COOL operation, it automatically
changes to FAN mode.
The system couldnt be re-started immediately
after turning off.The unit can't start?
6
During operation, the air conditioner may
sometimes exhibit a sound of "clatter" or
"rumble". This is the common sound of
refrigerant flow but not a trouble.
This is caused by the thermal expansion
or cold shrinkage of plastics.
Sometimes there are smells in the air flow
from the indoor unit. This is caused by the
smell of cigarettes or paint coatings inside
the unit.
During COOL or DRY operation, the unit
may blow out a thin mist. This is the con-
densate water mist caused by sudden co-
oling of the indoor air blown out from the
indoor unit.
In order to prevent frost accumulation on
the heat exchanger in the indoor unit,
sometimes it will automatically transfers
to FAN mode, but soon will return to
COOL mode.
This is due to the systems self-protection
function, which prevents it from restarting
in 3 min after stops.
Please wait
for 3 min.