Bonaire Navigator Controller - Manual (Page 33)

Multi-Appliance Navigator Control
Navigator Control
Page 33
Ducted Evaporative Air Conditioning
28. DUCTED EVAPORATIVE AIR CONDITIONER MAINTENANCE
GENERAL
All BONAIRE Ducted Evaporative Air Conditioners benefit from some general maintenance to ensure
continued cooling efficiency and a long life. Maintenance is carried out at the beginning and end of summer
to start up and close down your unit.
We recommend that all maintenance work be undertaken by our fully trained and accredited Service
Technicians or an authorised Climate Technologies Service Provider.
The frequency of general maintenance will depend on local operating conditions such as water quality, air
borne dust and pollen.
It is essential that your evaporative air conditioner is maintained in accordance with this manual. Failure to
do so will affect the life of the product, reduce the level of efficiency and may void warranty.
For service Australia wide refer to the details on the service section of this manual.
NOTE: The manufacturer and its agents reserve the right to refuse service unless safety and
accessibility to the unit can be guaranteed. The cost of any extra equipment required to provide
access to the unit for servicing is the responsibility of the owner.
SAFETY: Prior to commencing any maintenance isolate the unit from the power source. Ensure the
roof is safe to access, your ladder is securely positioned and use suitable safety equipment.
FILTER PADS
Visually check CELDEK pads for damage or blockage. Hose down pads from both sides to remove any
build up of salts, dust and pollen. In dusty areas more regular cleaning is recommended. Check the water
distributor, making sure it is clear and free from blockage. Failure to do so may lead to uneven water
distribution and therefore less efficient operation.
WATER TANK
It is important to keep the water tank clean and free from sediment and algae growth. To clean the tank, use
a soft brush or similar. Wipe all surfaces in the tank while it is full of water (DO NOT FORGET THE PUMP
STRAINER). Turn off the water inlet to the unit (an Isolation Valve should be fitted to the water inlet before
the Float Valve). Drain the tank by removing the 40mm standpipe. It may be necessary to repeat this
procedure if the tank is very dirty.
SAFETY: Wet roofs are dangerous – Take Care When Draining Tank.
WATER LEVEL / FLOAT VALVE
The water level should be set at nominal 65-70mm from the top of the overflow before filter pads are
saturated. After run off from operating filters the level from the top of the overflow fitting should be 25 –
30mm. The float valve is a mechanical type and is factory set. If it requires adjustment, adjust the float ball,
do not bend the arm. If the valve is leaking the seal may require cleaning or replacing. Turn of the water.
Remove the split pin and then float arm. Remove piston and clean or turn seal. Flush system and replace
piston, float arm and split pin.
Note: Water supply line to float valve must be flushed before connecting. Some discharge from
the overflow may be experienced after shut down due to water draining back from the Celdek pads.
This is normal.