Air Filters; Drain Pans; Coil Cleaning - Trane Quantum CLCPEuro Installation & Maintenance Manual

4. Air Filters

Appendix D provides filter size, type and
quantity. To replace throwaway filters,
install new filters with the directional
arrows pointing in direction of airflow.
To clean permanent filters wash under
a stream of water to remove dirt and
lint. Remove oil filter (aluminum or
grease filter) with a wash of mild alkali
solution. Rinse in clean, hot water and
allow to dry. Coat both sides of the filter
by immersing or spraying it with Air
Maze Filter Lote W or equivalent. Allow
to drain and dry for about 12 hours.

5. Drain Pans

Inspecting Cleaning
The condensate drain pan and drain
line must be checked to assure that
the condensate drains as designed.
This inspection should occur a
minimum of every six months or more
often as dictated by operating
experience.
For units with sloped drain pans: If
evidence of standing water or
condensate overflow exists. steps
should be taken to identify and remedy
the cause immediately. Refer to the
troubleshooting section of this manual
for possible causes and solutions. If
microbial growth in the drain pan is
observed, it should be cleaned and
removed immediately. Drain pans
should be cleaned using the following
procedure:
1. Disconnect all electrical power to the
unit.
2. Don the appropriate personal
protective equipment (PPE).
3. Remove all standing water.
4. Use a scraper or other tools to
remove any solid matter. Remove solid
Maintenance
matter with a vacuum device that
utilizes high efficiency particulate
arrestance (HEPA) filters with a
minimum efficiency of 99.97% at 0.3
micron particle size.
5. Thoroughly clean the contaminated
area(s) with a mild bleach and water
solution or an EPA-approved sanitizer
specifically designed for HVAC use,
Carefully follow the
manufacturer's instructions regarding
the use of the product.
6. Immediately rinse the drain pan
thoroughly with fresh water to prevent
potential corrosion from the cleaning
solution of the drain pan and drain line
components.
7. Allow the unit to dry thoroughly before
putting the system back into service.
8. Determine and correct the cause of
the microbial contamination.
9. Be careful that the contaminated
material does nit contact other areas
of the unit or building. Properly dispose
of all contaminated materials and
cleaning solution.

6.Coil Cleaning

Steam, hot water and chilled water
coils should be kept clean to maintain
maximum performance. lf fins become
dirty, clean with steam and detergent,
hot water spray and detergent, or one
of the commercially available chemical
coil cleaners. Rinse coils throughly
after cleaning.
WARNING
!
Follow all directions provided with
chemical cleaners to avoid personal
injury and/or coil
Commercially available chemical
cleaners may contain caustic or
hazardous agents.
29
In the event of coils being out of com-
mission for some time, it is advisable
to completely drain down the coil. On
each occasion when refilling is
undertaken, check that the coil is
effectively vented.
Periodic cleaning of the coils is
required.
Dirty coils have increased airside
pressure drops and reduced heat
sanitizer
transfer, thus unbalancing the cooling
or heating system.
Cleaning
In the event that fin edges have been
bent, they can be straightened with the
aid of a coil comb.
The cleaning is carried out with the unit
intact using a powerful vacuum cleaner
on the dust-contamainated side. If the
unit is very dirty it will need to be
removed and wet cleaned.
If required, soft cleaning brushes may
be used ensuring that the heat
exchanger fin are not damaged.
Frost protection
Check that frost protection is working
before the commencement of each
winter period. Ensure that the frost
sensor is correctly installed and fitted
and is working within the correct
temperature range.
Drop eliminator
Check the cleanliness of the droplet
separator section and the blades
annually. If the blades are dirty, remove
and clean them. Contamination can
result in damage through water
droplets in the system's performance.
Ensure that the blades are correctly
damage.
repositioned and that they are not
distorted.
TRANE
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