EKEX EKEXDCBAV3
Option kit for combination of Daikin condensing units
with field supplied evaporators
4PW30903-1
Installation and operation manual
10
If the system does not operate at all
■
Check if there is a power failure.
Wait until power is restored. If power failure occurs during
operation, the system automatically restarts immediately after
the power supply recovers.
■
Check if the fuse has blown or breaker has been tripped.
Change the fuse or set the breaker.
If the system stops operating after operation is complete
■
Check if the air inlet or outlet of outdoor or evaporator (air
handling unit) is blocked by obstacles.
Remove the obstacle and make it well-ventilated.
■
Check if the air filter is clogged.
Ask a qualified service person to clean the air filter.
■
The error signal is given and the system stops.
If the error resets after 5-10 minutes, the unit safety device was
activated but the unit restarted after evaluation time.
If the error persists, contact your dealer.
If the system operates but it does not sufficiently cool
■
Check if the air inlet or outlet of the evaporator (air handling unit)
or the outdoor unit is blocked with obstacles.
Remove the obstacle and make it well-ventilated.
■
Check if the air filter is clogged.
Ask a qualified service person to clean the air filter.
■
Check if the doors or the windows are open.
Shut doors or windows to prevent wind from coming in.
■
Check if direct sunlight enters the room.
Use curtains or blinds.
■
Check if there are too many inhabitants in the room.
Cooling effect decreases if heat gain of the room is too large.
■
Check if the heat source of the room is excessive.
Cooling effect decreases if heat gain of the room is too large.
The evaporator (air handling unit) is freezing up
■
The liquid thermistor (R2T) is not put on the coldest position and
part of the evaporator is freezing up.
Thermistor must be put on the coldest position.
■
The thermistor has come loose.
The thermistor must be fixed.
■
The evaporator fan is not operating continuously.
When the outdoor unit stops operating, the evaporator fan must
continue operation to melt the ice that was accumulated during
outdoor unit operation.
Ensure that the evaporator fan keeps operating.
In these cases, contact your dealer.
M
AINTENANCE
D
ISPOSAL
REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with relevant local and national
legislation.
N
OTES
■
Only a qualified service person is allowed to perform
maintenance.
■
Before obtaining access to terminal devices, all power
supply circuits must be interrupted.
■
Water or detergent may deteriorate the insulation of
electronic components and result in burn-out of these
components.
