Vers. 2013-0
wall mounted fan coil unit
18
INSTALLATION, OPERATION
AND MAINTENANCE MANUAL
IMPORTANT INFORMATION
TROUBLE SHOOTING GUIDE
If the unit appears to be malfunctioning, check the following points before calling
for service.
PROBLEM
1. Air conditioner doesn’t operate at all.
PROBLEM CAUSE
1. Is the power been shut down or power failure?
2. Is the wiring connection loose?
3. Is the power leakage protection in operation?
4. Is Fuse blown or Circuit breaker open?
REMEDY
1. Wait for power resume.
2. Tighten the connection.
3. Reset the power leakage protection.
4. Replace fuse or reset the circuit breaker.
PROBLEM
2. Insuf
fi
cient Cooling or Heating.
PROBLEM CAUSE
1. Is the set temperature is suitable?
2. Is air inlet or outlet obstructed?
3. Are
fi
lters are dirty?
4. Is there any other heat source in the room?
5. Is there a large number of people in the room?
REMEDY
1. Reset in suitable set temperature
2. Remove objects that obstruct the air inlet and outlet.
3. Clean
fi
lters and other part.
PROBLEM
3. Wireless remote controller is not functioning.
PROBLEM CAUSE
1. Is the remote control unit out of effective distance to the indoor unit?
2. Are there any obstruction between the remote controller and signal receptor?
3. Is the battery dryout?
REMEDY
1. Use the remote controller in suf
fi
cient distance.
2. Remove or clean the obstruction.
3. Replace with new batteries.
PROBLEMS THAT NEEDS QUALIFIED PERSONNEL ASSISTANCE.
PROBLEM
1. Air conditioner doesn’t run.
PROBLEM CAUSE
1. Faulty contactor, relay and fan motor capacitor.
2. Control board not functioning.
3. Terminal loose.
REMEDY
1. Replace faulty components.
2. Check the cause of malfunctioning and replace control board, if necessary.
3. Check and retighten.
PROBLEM
1. E1 blinking
2. E2 blinking
3. E3 blinking
PROBLEM CAUSE
1. Room Sensor error is activated.
2. Freeze Sensor error is activated.
3. Inlet water Sensor error is activated.
REMEDY
1. Check all sensors for loss connection and replace defective sensors if ne-
cessary.
PROBLEM
3. E4 blinking
PROBLEM CAUSE
1. Inlet water temperature fault is activated because;
- in cool mode the starting temperature is
≥
20°C.
- in heat mode the starting temperature is
≤
35°C.
REMEDY
1. Check the inlet water temperature whether right to start in cool/heat mode.
- in cool mode the inlet water temperature is
≤
15°C.
- in heat mode the inlet water temperature is
≥
40°C.
The unit is connected to the power supply. Operations performed by per-
sons without the required technical skills can lead to personal injury to
the operator or damage to the unit and surrounding objects.
MALFUNCTIONING
- In the case of malfunctioning remove the power to the unit then repower it
and start up the unit again. If the problems occur again, call services personnel
promptly.
- Air conditioner must be operated comply with the Power, Amps and Hz noted
in the unit name plate. Failing to do so, it may cause permanents damage to
the unit.
- The ground must be connected. Do not connect the ground wire to water
pipes, gas pipes, lighting rods, and telephone ground wire.
- Select the most appropriate temperature to provide maximum comfort in room.
Keep the room cooler than outside about 5°C. Careful choice of the room tem-
perature will lead to energy savings.
- Do not leave windows and doors open while operating the air conditioner.
During operation always leave the
fi
lters on the unit otherwise the dust in the air
could soil the surface of the evaporator coil.
- The air direction can be adjusted appropriately. The air coming out of the unit
must not strike people directly it could cause cold sensation and resulting di-
scomfort. Adjust the air de
fl
ector by hands and use the remote control to adjust
the horizontal louver.
Do not put anything in the air inlets or outlet slot. this could cause injury to the
people and damage to the fan.
Splashing water on the air conditioner can cause an electrical shock and mal-
function on the unit.
Due to continuous research and development, the specifi cation may
change without prior notice.
