Handleiding
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EUWY(*)5~24KBZW1
Packaged reversible air to water heat pumps
4PW61655-1 – 07.2010
Installation and operation manual
20
Symptom 5: Unit stops soon after operation
Symptom 6: Unit runs continuously and the water temperature remains
higher, respectively lower than the temperature set on the controller
Symptom 7: Excessive noises and vibrations of the unit
Symptom 8: Water flow is too low
Symptom 9: Pump is making noise (cavitation)
MAINTENANCE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
If the unit is used for air conditioning application, the described
checks must be executed at least once a year. In case the unit is
used for other applications, the checks must be executed every 4
months.
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases covered by the
Kyoto Protocol.
Refrigerant type: R407C
GWP
(1)
value: 1652.5
(1)
GWP = global warming potential
Periodical inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact your local
dealer for more information.
Maintenance activities
1 Air heat exchanger
Remove dust and any other contaminant from the coil fins using
a brush and a blower. Blow from the inside of the unit. Take care
not to bend or damage the fins.
2 Field wiring and power supply
■ Check the power supply voltage on the local supply panel.
The voltage must correspond to the voltage marked on the
identification label of the unit.
■ Check the connections and make sure they are properly
fixed.
■ Check the proper operation of the circuit breaker and the
earth leak detector provided on the local supply panel.
3 Internal wiring of the unit
Visually check the switch box on loose connections (terminals
and components). Make sure that the electrical components are
not damaged or loose.
4 Earth connection
Make sure that the earth wires are still connected properly and
that the earth terminals are tightened.
5 Refrigerant circuit
■ Check for leaks inside the unit. In case a leak is detected, call
your local dealer.
■ Check the working pressure of the unit. Refer to paragraph
"Switching the unit on" on page 12.
6 Compressor
■ Check on oil leaks. If there is an oil leak, call your local
dealer.
■ Check for abnormal noises and vibrations. If the compressor
is damaged, call your local dealer.
7 Fan motor
■ Clean the cooling ribs of the motor.
■ Check on abnormal noises. If the fan or motor are damaged,
call your local dealer.
Symptom 4.6: Discharge thermal protector is activated
POSSIBLE CAUSES CORRECTIVE ACTION
Unit is working outside the operation
range.
Check the operation condition of the
unit.
RESET After temperature decrease, the
thermal protector resets
automatically but the controller still
needs to be reset.
Symptom 4.7: Flow switch is activated
POSSIBLE CAUSES CORRECTIVE ACTION
Water flow too low. Check the water pump.
RESET After finding the cause, the flow
switch is reset automatically, but the
controller still needs to be reset.
POSSIBLE CAUSES CORRECTIVE ACTION
One of the safety devices is
activated.
Check safety devices (refer to "One
of the following safety devices is
activated" on page 19).
Voltage is too low. Test the voltage in the supply panel
and, if necessary, in the electrical
compartment of the unit (voltage
drop due to supply cables is too
high).
POSSIBLE CAUSES CORRECTIVE ACTION
The temperature setting on the
controller is too low, respectively too
high.
Check and adjust the temperature
setting.
The heat production respectively
cold production in the water circuit is
too high.
The cooling capacity, respectively
heating capacity of the unit is too
low. Call your local dealer.
Water flow is too high. Recalculate the water flow.
POSSIBLE CAUSES CORRECTIVE ACTION
Unit has not been fixed properly. Fix the unit as described in the
installation manual.
POSSIBLE CAUSES CORRECTIVE ACTION
Shut-off valve is not completely
open.
Open the shut-off valve completely.
There is air in the system. Purge the air.
The filter is not clean. Clean the filter.
There is an obstruction in the circuit. Remove the obstruction.
Pressure regulating valve is not
enough open.
Open more.
The chosen pump has not enough
capacity.
Check ∆p over pump.
Install heavier pump.
POSSIBLE CAUSES CORRECTIVE ACTION
Shut-off valve is not completely
open.
Open completely.
There is air in the system. Purge air.
The filter is not clean. Clean filter.
Pre-pressure and required water
pressure are not according to
installation instructions or expansion
vessel is broken.
Recalculate the values as described
in chapter "Setting the pre-pressure
of the expansion vessel" on page 7
and "Charging water" on page 8.
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply panel,
remove the fuses or open the protection devices of the unit.
Do never clean the unit with water under pressure.
The wiring and power supply must be checked by a
licensed electrician.
Bekijk gratis de handleiding van Daikin EUWY-KBZW1, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EUWY-KBZW1 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 4504 MB |
