Homeowner's Routine Maintenance Recommendations - Daikin DP14U Series Installation Instructions Manual

Single package gas-electric ultra-low nox heating & cooling unit
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HOMEOWNER'S ROUTINE MAINTENANCE RECOMMENDATIONS

HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAY BE PRESENT. FAILURE TO DO SO
MAY CAUSE PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH.
Replace or Clean Filter
IMPORTANT NOTE: Never operate unit without a filter installed
as dust and lint will build up on internal parts resulting in loss of
efficiency, equipment damage and possible fire.
A return air filter is not supplied with this unit; however, there must
be a means of filtering the return air. An indoor air filter must be
used with your comfort system. A properly maintained filter will
keep the indoor coil of your comfort system clean. A dirty coil
could cause poor operation and/or severe equipment damage.
The installer of your unit can tell you where your filter(s) are and
how to clean or replace them.
Check your return filter(s) at least once every two months. When
they are dirty, replace or clean as required. Disposable type filters
should be replaced. Reusable type filters may be cleaned.
NOTE: Reusable type filters should be washed with warm water,
dried completely and sprayed with an adhesive according to the
manufacturers recommendations.
You may want to ask your dealer about high efficiency filters. High
efficiency filters are available in both electronic and non-electronic
types. These filters can do a better job of catching small airborne
particles.
Improper filter maintenance is the most common cause of
inadequate heating or cooling performance. Filters should be
cleaned (permanent) or replaced (disposable) every two months
or as required. When replacing a filter, it must be replaced with
a filter of the same type and size and always make certain the air
flow arrows on the filter point in the proper direction.
Condenser, Evaporator and Induced Draft Motors
The bearings on the air circulating blower motor, condenser motor
and the combustion fan motor are permanently lubricated and
Check the thermostat to confirm that it is properly set.
Check the disconnect switch near the unit to confirm that it
is closed.
Check the electrical panel for tripped circuit breakers or
failed fuses . Reset the circuit breakers or replace fuses as
necessary.
Check for blockage of the indoor air inlets and outlets.
Confirm that they are open and have not been blocked by
objects (rugs, curtains or furniture).
PACKAGE UNITS - Dual fuel & Gas
HOMEOWNER'S Routine Maintenance Recommendations
We strongly recommend a bi-annual maintenance checkup be performed
by a qualified service agency before the heating and cooling seasons begin.
WARNING
Before Calling Your Servicer
require no further lubrication.
Compressor
The compressor motor is hermetically sealed and does not require
additional oiling.
Annual Inspection (Qualified Servicer Only)
Your package unit should be inspected by a qualified installer, or
service agency at least twice every year. This check should be
performed before the heating and cooling seasons begin. This will
ensure that adequate combustion air is being drawn and the vent
system is working properly. Particular attention should be paid to
the following items. Repair as necessary.
Check physical support of the unit. Ensure it is sound
without any sagging, cracks, or gaps, around the base.
Check for obvious signs of deterioration of the unit.
Flue Hood and Combustion Air Inlet. Check for blockage
(wasp nest, etc.) and corrosion.
Flue Hood (Qualified Servicer Only)
Return Air Connection. Check for physical soundness and
ensure that the connection is firmly sealed to the package
unit casing.
Heat exchanger. Check for corrosion and/or obstructions
within the heat exchanger passageways.
Burners. Check for proper ignition, burner flame, and flame
sense.
Wiring. Check wires for damage. Check electrical
connections for tightness and/or corrosion.
Filters. Check that filters are clean and in the proper
placement in the unit or duct system.
Louvers. Inspect air inlet louvers inside the heat exchanger
compartments. Ensure the area is clean and free of dirt and
debris.
Clean Outside Coil (Qualified Servicer Only)
The outdoor coil should be inspected annually. It is important to
keep the outdoor coil clean. Dirt, leaves, or debris could restrict
the airflow. If cleaning of the outdoor coil becomes necessary, hire
a qualified servicer. Inexperienced people could easily puncture
the tubing in the coil.
Check for obstructions on the unit . Confirm that it has
not been covered on the sides or the top. Remove any
obstruction that can be safely removed. If the unit is
covered with dirt or debris, call a qualified servicer to clean
it.
Check the filter. If it is dirty, clean or replace it.
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