Carrier SYNERGY 38YD - Manual (Page 5)

If your system includes an indoor fan coil unit, the filter is lo­
cated in the unit where it connects with the return-air duct or
plenum. (See Fig. 5.) Remove the filter cover plate by sliding
latches toward center of plate. Lift filter to clear lower flange.
Filter is spring loaded and will “pop out.” Reinstall filter, being
certain to secure filter behind lower flange. When reinstalling
cover plate, secure plate behind upper flange then slide tabs
outward.
INDOOR COIL
If the indoor coil has only been operated with a clean filter in
place, it should require minimal cleaning. You may use a vac­
uum cleaner and soft brush attachment to remove any accumu­
lation of dust from the top and underside of the finned coil
surface. However, perform this maintenance only when the coil
is completely dry.
If you cannot get the coil clean by this method call your dealer
for service. It may be necessary to clean the coil with a detergent
solution and rinse it with water. This could require the removal
of the coil. You should not attempt this yourself.
OUTDOOR COIL
If grass clippings, leaves, shrubbery, and debris are kept away
from the outdoor unit, minimal care should be sufficient to
keep the system functioning properly. For proper drainage, de­
bris must be removed periodically from the base pan. However,
if the outdoor coil becomes dirty, use a brush or vacuum cleaner
and soft brush attachment to clean the exterior surface. If dirt
is deep in the coil, contact your dealer for service. The outdoor
fan motor may have to be disconnected and the top panel re­
moved to gain access to the coil for thorough cleaning. Do not
attempt this yourself.
OUTDOOR COIL—SEA COAST
If your unit is located near the ocean, special maintenance is
required. Ocean mist/breeze carries salt, which is corrosive to
most metals. Although your new unit is made out of galvanized
metal and is protected by top grade paint, you should take the
precaution of additional maintenance, consisting of periodic
washing of the unit. By washing all exposed surfaces and coil
you will be adding additional life to your unit. Please consult
your installing contractor for proper intervals/procedures for
your geographic area or service contact.
UNIT SUPPORT
Your split-system outdoor unit should be maintained at a level
position. If its support should shift or settle so that the unit is
no longer level, you should correct the condition. Relevel it
promptly to assure condensate drainage out of the unit. If you
notice that water or ice collects beneath the unit, arrange for it
to be drained away from the unit.
BEFORE YOU REQUEST A
“SERVICE CALL”
BEFORE YOU CALL FOR SERVICE, CHECK FOR THESE
EASILY SOLVED PROBLEMS:
• Check the indoor and outdoor disconnect switches. Verify
that circuit breakers are ON or that fuses have not blown.
• Check for sufficient airflow. Check the air filter(s) for any ac­
cumulations of dirt. Check for blocked return-air or supply-air
grilles. Be sure grilles are open and unobstructed.
• Check the settings on your indoor thermostat. If you desire
cooling, see that the temperature control selector is set below
room temperature and the SYSTEM switch is on the COOL or
AUTO position. If you require warmth, be sure the temperature
control selector is set above room temperature and the SYS­
TEM switch is at HEAT or AUTO. The FAN switch should be
set at ON for continuous blower operation or AUTO if you wish
blower to function only while the unit is operating.
• Check note concerning special features and time delays in
section titled “Operating Your Air Conditioner.”
• If MAL LED light on thermostat is flashing, record pattern
of consecutive flashes and pauses (i.e. 1 flash with pause, 2
flashes with pause . . . ) and report to service person when con­
tacted. This will assist service personnel in diagnosing system
problems.
If your comfort system still fails to operate, contact your servic­
ing dealer for troubleshooting and repairs. Specify your appar­
ent problem, and state the model and serial numbers of your
equipment. (You should have them recorded on page 6 of this
booklet.) With this information, your dealer may be able to of­
fer helpful suggestions over the phone or save valuable time
through knowledgeable preparation for the service call.
REGULAR DEALER MAINTENANCE
In addition to the routine
maintenance that you per­
form, your home comfort sys­
tem
should be inspected
regularly by a properly
trained service technician.
The
inspection (preferably
each year, but at least every
other year) should include the
following;
• Routine inspection of air filter(s). Replacement or cleaning
as required.
• Inspection and cleaning of the blower wheel, housing, and
motor as required.
• Inspection and, if required, cleaning of indoor and outdoor
coils.
• Inspection of the indoor coil drain pan, plus the primary and
secondary drain lines. If supplied, the auxiliary drain pan and
line should be inspected at this time. Service should include
cleaning if required.
• A check of all electrical wiring and connections.
• A check for secure physical connections of individual compo­
nents within units.
• Operational check of the heat pump system to determine ac­
tual working condition. Necessary repair and/or adjustment
should be performed at this time.
Your servicing dealer may offer an economical service contract
that covers seasonal inspections. Ask for iurther details.