10
3.
The filter day timer has expired.
The alarm LED lights, the display flashes showing
FIL
, the filter LED flashes with the display and the audible alarm sounds
(if activated).
The filter alarm may be cleared by pressing
Exit (4)
.
Maintenance
The air conditioning system should provide many years of trouble-free operation with a
minimal amount of maintenance. Primary maintenance consists of checking the
condition of the ambient air filter and condensate management system.
1. Ambient Air Filter - It is recommended that the ambient air filter be checked and
cleaned regularly, at least every 30 days, or more frequently depending on ambient
conditions. In order to check the condition of the air filter, it is recommended to first
remove electrical power from the unit. Next, locate the filter cover and filter. (Location
varies with model) Loosen the knurled knobs or screws which hold the filter cover in
place and remove the cover from the system. Next, remove the filter and clean it by
soaking it in warm soapy water and then rinsing in clean water. Use a shop-vac to
remove excess water from the filter before returning it to the system. Replace the filter if
it is showing signs of deterioration. Some units have slide out filters
**Note**
If rain or wash down hoods are installed on your system, no filter is supplied with
your system and no filter maintenance is required. Systems equipped with rain or
wash down hoods will require regular condensing section maintenance. For
systems equipped with filters, it is recommended to have a spare clean filter in
stock in order to prevent prolonged cooling system downtime. The dirty filter may
be cleaned at a more convenient time.
2. Condensate Management System - The condensate management system should be
checked periodically for scale, sludge and debris which may cause the system to fail.
On open type enclosures, and in areas where the enclosure door is opened frequently in
dirty or industrial environments, maintenance should be performed on a regular basis, at
least every 30 days. On sealed enclosures, clean environments and where the door is
not opened frequently, maintenance may be performed bi-annually.
Your environment
will determine frequency of required maintenance.
Maintenance of the condensate management system will require removal of electrical
power from the unit and removal of the cover. To remove the cover, use a screw driver
to loosen the screws which attach the cover to the base.
Caution: Electrical wires are
connected from the cover to the base.
Upon removing the cover, you will see the primary condensate management pan located
below the evaporator. Inspect the condensate pan and drain nipple for signs of scale,
sludge or debris which may prevent water flow through the nipple. To clean the debris
from the pan, use a clean absorbent cloth or a shop-vac. Nipples may be cleaned using
a 1/4 inch tubing brush and then flushing with clean water.
Also inspect the neoprene tubing which is attached to the nipples on the condensate
management system. If the tubing appears to have internal build up or is brittle, it
should be replaced. It is recommended to replace the tubing at least every two years,
pending your environmental conditions.
Note: If your system has a secondary
condensate management pan, maintenance should be performed in the same manner
as above
.