Owner`s manual

Unit Maintenance
P ROFILE S ERIES O WNER ’ S M ANUAL
TEK600 S ERIES C ONTROL
Page 9
UNIT MAINTEN ANCE
Warning: Before commencing any maintenance work on your unit, isolate the power
at the supply (Fuse Box).
Note: It is essential that your evaporative air conditioner be maintained in accordance
with this manual. Failure to do so will affect the life of the product and reduce the
level of efficiency.
F ILTER P ADS
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. Do not hose Celdek with high pressure.
U NIT W ATER R ESERVOIR
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 standpipe. It may be necessary to repeat this procedure if the tank is very
dirty.
SAFETY: Wet roofs are dangerous – Take Care When draining unit reservoir.
W ATER L EVEL / F LOAT V ALVE
The water level should be set at nominal 65-70mm from the top of the overflow. The float
valve is a mechanical type and is factory set. If it requires adjustment keep bends tight. If
the valve is leaking the seal may require cleaning or replacing. Turn the water off. 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.
Note: Some discharge from the overflow may be experienced after shut down due to
water draining back from the Celdek pads. Adjust float valve.
M OTOR AND F AN
Check that the fan spins freely and that there is no build up on the blades.
E LECTRICAL
No general maintenance is required to the electrical system.
A Qualified Electrician should only carry out electrical connections and maintenance.
B LEED O FF
The bleed rate should be checked to ensure it is adequate and that there is no build up of
mineral deposits in or on your air conditioner. White deposits indicate high mineral content
and the Bleed Rate should be increased. If it is at maximum and the deposits are still
forming, then more regular maintenance is required.
P UMP
Check the pump spins freely and that the strainer is clean.