BEFORE YOU REQUEST A "SERVICE CALL"
CHECK FOR THESE EASILY SOLVED PROBLEMS:
1. Check the indoor and outdoor disconnect switches. Verify that
circuit breakers are ON or that fuses have not blown.
2. Check for sufficient airflow. Check the air filter(s) for any
accumulations of dirt. Check for blocked return-air or supply-
air registers. Be sure registers are open and unobstructed.
3. Check the settings on your indoor thermostat. If you desire
cooling, make sure that the temperature control selector is set
below room temperature and the SYSTEM or MODE control
is set to COOL or AUTO. If you require warmth, make sure
that the temperature control selector is set above room
temperature and the SYSTEM or MODE control is set to
HEAT or AUTO. The FAN control should be set to ON for
continuous blower operation or AUTO if you wish blower to
function only while your heat pump is operating. If your
comfort system still fails to operate, turn your system off and
contact your servicing dealer for troubleshooting and repairs.
Specify your apparent problem, and state the model and serial
number of your equipment. (You should have them recorded
on the last page of this booklet.) With this information, your
dealer may be able to offer 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 perform, your
home comfort system should be inspected regularly by a properly
trained service technician. The inspection (preferably twice each
year, but at least once every year) should include the following:
1. Routine inspection of air filter(s). Replacement or cleaning as
required.
2. Inspection and cleaning of the blower wheel, housing, and
motor as required.
3. Inspection and, if required, cleaning of coils.
4. A check of all electrical wiring and connections.
5. A check for secure physical connections of individual com-
ponents within unit.
6. Operational check of the heat pump system to determine
actual working condition. Necessary repair and/or adjustment
should be performed at this time.
7. Your servicing dealer may offer an economical service con-
tract that covers seasonal inspections. Ask for further details.
WARRANTIES
You have purchased a 50ZHA series unit. Be sure to read the
warranty at the back of this booklet carefully to determine the
coverage for your unit.
FOR THE RECORD
Record the model, product, and serial numbers of your new
equipment in the spaces provided. This information, along with the
other ready-reference facts requested will be necessary should you
ever require information or service.
INSTALLATION DATA
Date Installed ..................................................................................
Dealer’s Name.................................................................................
Address ............................................................................................
City...................................................................................................
State/Zip ..........................................................................................
Telephone ........................................................................................
UNIT DATA
Unit Model ......................................................................................
Unit Serial Number........................................................................
Heater, if applicable:
Part Number ...................................................................................
Kilowatt Rating ..............................................................................
Copyright 2005 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
6
Tab
6
8
PC 101
Printed in U.S.A.
Catalog No. OM50-41
Pg 4
Replaces: New