Viesa AGRO Installation Manual page 42

PROBLEM
The indicators are ok, but the
equipment has low efficiency.
When the equipment is on, water
enters by the air grilles and/or it
spills through the ceiling.
POSSIBLE CAUSES
HYDRAULIC
1- Inverted electrical connections
of water pump/s.
2- Evaporator 9 x 15 cm hose
blocked.
3- Evaporator placed upside down
4- Blocked holes at the water
distributor of the evaporator.
5- Dirty evaporator.
6- Water pump damage.
7- Faulty power and control
module.
8- Water Cycle Switch with
wrong setting.
VENTILATION
9- Air grilles without weather
strips.
10- Blocked air entrances of the
base of the unit.
11- Faulty blower.
1- Incorrectly oriented holes
of the water distributor of the
evaporator.
2- Blocked dual restriction valve.
3- Blocked return hoses.
4- Blocked PVC filters in the
evaporator's tray.
5- Water column less than 40 cm.
6- Water Cycle Switch with
wrong setting.
SOLUTIONS
HYDRAULIC
1- Connect correctly: Red (+)
and black (-).
2- Modify.
3- Place the evaporator with the
hose connector upwards.
4- Replace the evaporator.
5- Clean and/or replace the
evaporator.
6- Replace the water pump.
7- Replace the power and control
module.
8- Reset Water Cycle Switch
according to water column height.
VENTILATION
9- Put strips to the air grilles.
10- Clean the air entrances.
11- Replace the motor of the
blower.
1- Replace the evaporator.
2- Clean or replace the valve.
3- Clean hoses or change path.
4- Clean PVC filters.
5- Place the tank lower.
6- Reset Water Cycle Switch
according to water column height.