Regular maintenance of the air handlers can help you overcome fears of costly repairs at the stroke of summer. Air handlers, in particular need high voltage input for normal functioning and therefore there is always a possibility of shock hazard with this type of device. Periodic check ups assists in ensuring that the equipment continues to retain its optimum function ability without compromising on performance.
The main parts of an Air handler include the metering device,
evaporator, electro-mechanical control systems and the blower motor. Each of
these parts should be checked from time to time for consistency. Hiring the
services of a competent HVAC professional is highly recommended to make sure
that the device is clean and operating properly.
Evaporator Coils:
One of the common problems associated with air handlers is that of blocked
coils. In most cases, coils are choked with dirt, debris and other foreign
particles.
When an air conditioner is powered on, the coils operate
much below the dew point. In the process, this makes the coils moist and
vulnerable to dust, dirt and impurities. Whenever foreign particles come in
contact with the coils, it is going to stick to the walls of the coil.
Gradually, this impurity layer will thicken and the device will stop cooling.
Improper air flow across the coils shall lead to no heat exchange
mechanism. Therefore, to make the
evaporator run properly, it’s absolutely essential to clean the coils and pave
the way for a measured volume of air flow.
Refrigerant
Charge:Low refrigerant charge can hinder the normal functioning of
an air handler. The refrigerant charge tends to reduce with time and therefore
it is always advisable to get it checked from time to time by an experienced
HVAC professional.
Blower
Motor: The blower motor does not require much maintenance; the only
thing that needs to be done is oiling the parts and thoroughly checking the
motor belt. However, some of the newer models do not have oil ports. Instead,
they make use of sealed bearings that do not require oil. This type of blower
motors comes with an inbuilt dust cap that can be unpacked, cleaned and greased
with ease.
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