Engineered air PD SERIES, Инструкция по установке, эксплуатации и обслуживанию

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A
PD MANUAL
IOM-39 32 of 36 Aug 99 R1
according to directions stated on the submittal record. Failure to set correctly could result in inadequate
dehumidification or coil freezing.
COILS
Inspect coils and drain pans for cleanliness and biological growth regularly (every 2 ‐ 3 months).
Warning:
Dirty coils can be a cause of poor air quality. Failure to maintain clean coils can cause
injury or death, damage to the equipment, property damage or system operational
problems. Moisture carry over can result from dirty coils.
The external surface of finned coils can be cleaned using a low pressure water spray and a brush. Coil fins
are easily damaged. Do not use high pressure steam or water to clean coils; it will permanently damage
the coil. When using cleaning additives or solutions they must be compatible with the coil materials or
coatings. Use a fin comb to straighten any damaged or bent fins.
COIL WINTERIZATION
Water coils that are not in use must be protected from freezing. Coils should be drained and blown out
with compressed air and then filled and drained several times with appropriate strength pre ‐ mixed
inhibited HVAC glycol or other suitable fluid.
COATING MAINTENANCE
Most natatorium HVAC equipment will have an epoxy interior coating. Regularly inspect the coating for
integrity. Touch up epoxy paint is readily available from a variety of coating suppliers.
Heresite
®
is an air ‐ dried phenolic coating used to protect metals from corrosion typically applied to piping
and coils. Inspect once per year or more often as required. Clean with low pressure air and vacuum with a
soft brush. Low pressure, chemical free water may be used.
Repair Instructions:
1) Ensure surfaces are completely dry.
2) Use a nylon brush to remove any loose scale.
3) Roughen up areas to be repaired with a wire brush.
4) Vacuum fins or the affected area to ensure any loose residue is gone.
5) Spray or brush Heresite
®
S ‐ 440 solvent* (or any equivalent cleaner) to dissolve any oils or grease.
6) Again, vacuum the affected area.
7) Allow one hour for the solvent to dissolve completely.
8) Cover areas not requiring repair with plastic (or equivalent) and masking tape.
9) Using Heresite
®
VR ‐ 554 ‐ T* coating spray all affected areas from different angles to ensure
complete coverage. Apply 2 ‐ 3 full coats. Let dry 3 to 4 hours between coats.
10) Allow Heresite
®
to cure 24 hours before putting equipment back into service.
* Review the MSDS documentation included with the solvent and coating spray.