SM Split AH/AV Air Handler
SM Split AH/AV Air Handler8733826256 (2020/06)
26 | Maintenance
Subject to change without prior notice
MAINTENANCE
Filter changes or cleanings are required at regular
intervals. The time period between filter changes
will depend upon type of environment in which the
equipment is used. In a single-family home, that is
not under construction, changing or cleaning the
filter every 60 days is sufficient. In other
applications such as motels, where daily
vacuuming produces a large amount of lint, filter
changes may need to be as frequent as biweekly.
An annual “checkup” by a trained and qualified
HVAC mechanic is required. Recording the
performance measurements of volts, amps, and
water temperature differences for both heating
and cooling is recommended. This data should be
compared to the information on the unit’s data
plate and the data taken at the original startup of
the equipment.
Lubrication of the blower motor is not required;
however, it may be performed on some motors to
extend motor life. Use a SAE-20 non-detergent
electric motor oil.
The condensate drain should be checked annually
by cleaning and flushing to insure proper
drainage.
WARNING: Installation and servicing of this
equipment can be hazardous due to system
pressure and electrical components. Only
trained and qualified personnel should
install, repair, or service the equipment.
WARNING: Before performing service or
maintenance operations on the system, turn
off the main power to the unit. Electrical
shock could cause personal injury or death.
Untrained personnel can only perform basic
functions of maintenance such as cleaning
coils and replacing filters.
NOTICE: Equipment should never be used
during construction due to likelihood of wall
board dust accumulation in the air coil of
the equipment which permanently affects
the performance and may shorten the life of
the equipment.
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