Daikin VAM350FC, Operation Manual

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Operation manual
5
VAM350~2000FC
Total Heat Exchanger
HRV (Heat Reclaim Ventilation)
4P415945-1 – 2015.08
2 Take out the heat exchange elements from the unit body.
(Refer to
figure 4 (A = Models VAM350~1000F, B = Models
VAM1500~2000F))
3 To clean the air filter, lightly pat it with hand or remove dust with
a vacuum cleaner. If excessively dirty, wash it in water. (Refer to
figure 5 )
4 If the air filter is washed, remove water completely and allow to
dry for 20 to 30 minutes in the shade. When dried completely,
install the air filter back in place. (Refer to
figure 6 )
5 Install the maintenance cover securely in place.
Maximum allowed torque on the screws is 2,17 Nm.
Maintenance for the heat exchange element
Cleaning frequency
At least once every two years (for general office use)
(clean the element more frequently if necessary.)
1 Use a vacuum cleaner to remove dust and foreign objects on the
surface of the heat exchange element. (Refer to
figure 7 )
- Use the vacuum cleaner equipped with a brush on the tip of
the suction nozzle.
- Lightly contact the brush on the surface of the heat
exchanging element when cleaning.
(Do not crush the heat exchange element while cleaning.)
2 Install the air filter securely in place.
3 Put the heat exchange element on the rail and insert it securely
in place.
4 Install the maintenance cover securely in place.
Trouble and countermeasure
If your unit does not operate properly, check the following items
If the following occurs, consult the dealer where the unit was purchased
List of malfunction codes of remote controller of the HRV-system air conditioner
In case of malfunction with the code in white letters on black background, the unit still operates.
However, be sure to have it inspected and repaired as soon as possible.
1 Heat exchange element
2 Handle
3 Rail
4 Filter
CAUTION

Do not wash the air filter in hot water.

Do not dry the air filter over a fire.
 Do not subject the air filter to direct sunlight.

Do not use organic solvent such as gasoline and
thinner on the air filter.
 Be sure to install the air filter after servicing.
(Missing air filter causes clogged heat exchange
element.)
Replacement air filters are available.
CAUTION
Never wash the heat exchanger element with water.
Conditions Causes Corrective actions
The unit does not operate at all. Check if there is a power failure. After power has been restored, start operation again.
Check if the fuse has blown or breaker has worked. Change the fuse or set the breaker.
Check if the indication of operation control method on
remote controller (BRC301B61) is shown. This is normal. Operate the unit using the air
conditioner remote control or centralized controller.
(Refer to
"Operation" on page 2 )
Check if the indication of operation stand by on
remote controller (BRC301B61) is shown. It indicates the precooling/preheating operation. This
unit is at stop and will start operation after the
precooling/preheating operation is over.
(Refer to
"Operation" on page 2 )
Amount of discharged air is small and the
discharging sound is high. Check if the air filter and heat exchange element are
clogged. Refer to "Maintenance" on page 4 .
Amount of discharged air is large and so is the
sound. Check if the air filter and heat exchange element are
installed. Refer to "Maintenance" on page 4 .
Operation lamp
Inspection
indicator Unit No. Malfunction code Description
On Off Blinking 64 Indoor air thermistor malfunction
On Off Blinking 65 Outdoor air thermistor malfunction
On Off Blinking 6A Damper-related malfunction
Blinking Blinking Blinking 6A Damper-related malfu thermistor
Blinking Blinking Blinking A6 Locked rotor
Blinking Blinking Blinking C1 Fan communication error
Blinking Blinking Blinking U5 Transmission error between the unit and remote controller
Off Blinking Off U5 Printed circuit board error or setting error of remote controller
Off Blinking Off U8 Transmission error between main remote controller and sub remote controller
Off Blinking Blinking UA Wrong remote controller installed
On Off On UC Repeated central address
Blinking Blinking Blinking UE Transmission error between the unit and centralized controller