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The fanmust bekept f ree of allobstructions
toensure proper
cooling. Contact your d ealer forany required service.
Electrical
Controls
and
Wiring
Electrical
controls
are
difficult
to
check
without
proper
instrumentation.
If there
are any discrepancies
in the operating
cycle, contact
your local dealer and request
service.
Refrigerant
Circuit
The refrigerant
circuit is difficult
to check for leaks
without
the
proper
equipment.
If inadequate
cooling
is suspected,
contact
your
local dealer for service.
EXPLOSION,
BURN
AND
ENVIRONMENTAL
HAZARD
Failure
to follow
this warning
could
result
in personal
iniury,
death or property
damage.
System
under
pressure.
Relieve
pressure
and recover
all
refrigerant
before
system
repair
or final unit disposal.
Use
all
service
ports
and
open
all
flow-control
devices,
including
solenoid
valves.
Unit
Panels
After performing
any maintenance
or service
on the unit, be sure
all panels
are fastened
securely
in place
to prevent
rain from
entering
unit cabinet
and to prevent
disruption
of the correct
unit
airflow
pattern.
Regular
Dealer
Maintenance
In addition
to the type of routine maintenance
you might be willing
to perform,
your unit should
be inspected
regularly
by a properly
trained
service technician.
An inspection
(preferably
each year, but
at least every other year) should include
the following:
1. Inspection
and, if required,
cleaning
of the outdoor
and
indoor
coils.
2. Inspection
and, if required,
cleaning
of the indoor
coil drain
pan.
3. Inspection
and
cleaning
of blower
wheel
housing
and
motor.
4. Inspection
of all supply
and
return
air ducts
for leaks,
obstructions,
and insulation
integrity.
Any problems
found
should be resolved
at this time.
5. Inspection
of the unit base to ensure
that no cracks,
gaps,
etc., exist which
may cause
a hazardous
condition.
6. Inspection
of the unit casing for signs of deterioration.
7. Inspection
of all electrical
wiring
and components
to assure
proper connection.
8. Inspection
for leaks in the refrigerant
circuit.
Pressure
and
temperature
check
to
determine
appropriate
refrigerant
charge.
9. Operational
check
of
the
unit
to
determine
working
conditions.
Repair
or adjustment
should
be made
at this
time.
Your servicing
dealer may offer an economical
service contract
that
covers
seasonal
inspections.
Ask for further details.
Complete
service instructions
can be found
in the unit Installation,
Start-up
and Service Instructions.
Warranty
Certificate
Your
unit
has a limited
warranty.
Be sure to read the warranty
carefully
to determine
the coverage
for your unit.
Before
you
call
for
service...
...check
for several easily solved problems.
If insufficient
heating
or cooling
is suspected:
(
) Check for sufficient
airflow.
Check the air filter for dirt. Check
for blocked
return or supply
air grilles.
Be sure they are open and
unobstructed.
If these
checks
do not reveal
the cause,
call your
servicing
dealer.
If your unit is not operating
at all, check
the following
list for
easy solutions:
(
) Check to be sure that your thermostat temperature selector
is
set below
the indoor
temperature
during
the cooling
season
or
above the indoor
temperature
during
heating
season.
Be sure the
SYSTEM
switch or MODE
control is in the COOL
or HEAT and
not OFF.
(
) If your unit still fails to operate,
call your servicing
dealer for
troubleshooting
and repairs.
Specify
the model
and serial numbers
of your unit. (Record
them in this manual
in the space provided.)
If
the dealer
knows
exactly
which
unit you have, he may be able to
offer
suggestions
over
the phone,
or save valuable
time through
knowledgeable
preparation
for the service call.
In Case
of Trouble
If you
perform
the
steps
above
and
unit
performance
is still
unsatisfactory,
shut off the unit and call your dealer.
Copyright
2010 Carrier Corp. * 7310 W. Morris St. * Indianapolis,
IN 46231
Printed in U.S.A.
Edition
Date: 02/10
Manufacturer
reserves
the right to change, at any time, specification8
and design8 without notice and without obligations,
Catalog No: OM5OZHB-01
Replaces:
NEW
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