Carrier 42C,V Manual de instalación descargar pdf (Pagina 82)

may be cleaned and re-installed in the unit instead of being dis-

carded when dirty.

1. Tap on solid surface to dislodge heavy particles.

2. Wash in hot water. If needed, use mild solution of com-

mercial solvent such as sal soda or trisodium phosphate.

3. Set filter on end so that water drains out through slots in

frame. Allow filter to dry thoroughly.

4. Recharge filter with Film-Cor or similar recharging oil.

Three ounces is sufficient for medium size filter. Oil may

be applied by insect spray gun. For easier spraying, the oil

can be warmed.

If the filter is dipped in the recharging oil, remove it im-

mediately and allow draining through slots in frame.

5. Replace filter in unit.

If another type of filter is used, follow the filter manufacturer's

instructions.

Electrical Wiring and Controls — The electrical

operation of each unit is determined by the components and

wiring of the unit. This may vary from unit to unit. Consult the

wiring diagram attached to the unit for the actual type and

number of controls provided on each unit.

The integrity of all electrical connections should be verified

at least twice during the first year of operation. Afterwards, all

controls should be inspected regularly for proper operation.

Some components may experience erratic operation or failure

due to age. Wall thermostats may also become clogged with

dust and lint and should be periodically inspected and cleaned

to provide reliable operation.

When replacing any components such as fuses, contractors,

or relays, use only the exact type, size and voltage component

as furnished from the factory. Any deviation without factory

authorization could result in personal injury or damage to the

unit. This will also void all factory warranties. Only factory-

supplied replacement parts ensure that the warranty and agency

status remain in effect. All repair work should be done in such

a manner as to maintain the equipment in compliance with

governing codes, ordinances and testing agency listings.

More specific information regarding the use and operating

characteristics of the standard controls offered by the manufac-

turer are contained in other manuals.

Valves and Piping — No formal maintenance is re-

quired on the valve-package components most commonly used

with fan coil units other than a visual inspection for possible

leaks in the course of other normal periodic maintenance. In the

event that a valve should need replacement, the same

precautions taken during the initial installation to protect the

valve package from excessive heat should also be used during

replacement.

Filters — The type of throwaway filter most commonly

used on fan coil units should be replaced on a regular basis.

The time interval between each replacement should be estab-

lished based on regular filter inspection and should be recorded

in the log for each unit. Refer to product catalog for recom-

mended filter size for each product type and size. If the replace-

ment filters are not purchased from the factory, the filter used

should be of same type and size as those furnished from or rec-

ommended by the factory. Pleated media or extended surface

filter should not be used since the high air pressure drop en-

countered with these type of filters is not compatible with the

type of fan coil unit covered in the manual.

A maintenance schedule for permanent filters should be de-

veloped in the same manner as throwaway filters. Unlike

throwaway filters, permanent filters may be cleaned and rein-

stalled in the unit instead of being discarded when dirty. The

optional factory permanent filter may be cleaned in hot soapy

water to remove any trapped dirt the set aside on edge to dry.

Before replacing the filter in the unit, it should be recharged

with some type of entrapment film. The filter should be

sprayed on both sides or submerged in the film to assure com-

plete coverage. The filter should not be allowed to soak in the

film but should be immediately removed and the excess film

drained from the filter before reinstallation in the unit.

NOTE: Permanent filters normally have less static pressure

loss than throwaway filters.

Drain — The drain must be checked before initial start-up

and at the beginning of each cooling season to assure that the

drain trap and line are clear. If it is clogged, take steps to clear

the debris so that condensate will flow easily.

Make periodic checks of the drain during the cooling season

to maintain a free flowing condensate. Units provided with sec-

ondary or tell-tale drain connection will indicate a clogged

main line by flow from the tell-tale connection.

NOTE: Should the growth of algae and/or bacteria be a con-

cern, consult an air conditioning and refrigeration supply orga-

nization familiar with local conditions for chemical or other

solution available to control these growths.

Warranty — All equipment and components sold through

the Parts Department are warranted under the same conditions

as the standard manufacturer’s warranty with the exception

that the warranty period is thirty (30) days unless the compo-

nent is furnished as a warranty replacement. Parts furnished as

warranty replacements are warranted for the remaining term of

the original unit warranty or not less than thirty (30) days.

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