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- 61.521 -
INSTALLATION AND MAINTENANCE MANUAL
2011 - GEB1102VT
- Inspect the fastenings points and the casing
- Inspect the valves
- Inspect if all connections and valves are open, and if there is heating
or cooling medium in the heat exchanger.
- Desaerate the heat exchanger
- The air must be able to flow freely.
- Check the grounding of the motor
- Installation and electrical connection have been properly
completed
- Measure the intensity of current and compare with the label
- Compare the voltage mentionned on the label of the fan coil unit
with the voltage of the network
After commissioning, hand over the installation and maintenance
manual to the owner.
VI. MAINTENANCE
Verco fan coil units are produced with qualitative superior
components. Nevertheless we recommend to inspect, annually, the
fan coil unit.
- The motor is maintenance-free.
- Inspect the operation of the motor
- Inspect all the electrical connections
- Inspect the grounding of the motor
- Inspect the heat exchanger on pollution and clean if necessary.
!! In case of cleaning the heat exchanger : don't deform or bend the
fins.
- Inspect the valves and the heat exchanger on leakages.
- Desaerate the heat exchanger
- Do not clean the unit with pressured water or an other liquid.
- Clean the unit with a dry or light moist rag of cotton
- Filter must be checked monthly and cleaned when necessary.
VII. TROUBLESHOOTING
problem
ventilator doesn't turn
insufficient air delivery
too much noise
the delivered air is not hot
or not hot enough
FAN COIL UNITS
possible causes
• fan coil unit is not switched on
• no electrical tension
• electrical wires aren't connected
• thermal contact is open
• the fan speed is too low
• the coil is filthy
• filter is filthy
• the fan speed is too high
• louvres of outlet grille are closed or
air flow is hindered
• bearing noise of the ventilator
• air in the heat exchanger
• the temp. of heating medium is too low
• insufficient water flow
• thermostat temperature is too low
• heat exchanger is filthy
In case of dust, the filter can be washed with a neutral detergent.
The frequence of cleaning depends of the dust concentration in the
room.
- Inspect the inlet and outlet grille. Clean if necessary.
- Inspect the operation of the speed controls and thermostats.
- Check all the fastenings.
solution
• switch on the fan coil unit
• check the fuse / current lead
• connect the electrical cables (only by qualified personnel)
• let the motor cool down, restart the air curtain
• adjust a higher fan speed
• clean the coil fins
• clean or replace the filter
• adjust to a lower fan speed
• free the air flow
• call a specialist
• desaerate the heat exchanger
• switch on or inspect the pump / deaerate the installation
• inspect the pump / inspect the water circuit and adjust the
pressure loss
• adjust to a higher temperature
• clean the heat exchanger