Carrier | 48TFE008-014 | Specifications | Carrier 48TFE008-014 Specifications

Carrier 48TFE008-014 Specifications
48TF004-014
48TM004-014
Single-Package Rooftop Heating/
Cooling Units
User’s Information Manual
NOTE TO INSTALLER
TO LIGHT UNIT
This manual should be left with the equipment owner.
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
1. Do not turn off the electrical power to unit without
first turning off the gas supply.
2. Before attempting to start the gas heating section, familiarize yourself with all the procedures that must be
followed.
3. Never attempt to manually light the main burners on
unit with a match, lighter, or any other flame. If the
electric sparking device fails to light the main burners,
refer to the following shutdown procedures, then call
your dealer as soon as possible.
If you do not follow these instructions exactly, a fire or
explosion may result. Property damage, injury, or loss of
life could occur.
See Fig. 1A and 1B for location of gas valve. Refer to Fig. 2
while proceeding with the following steps.
Step 1 — Set room thermostat to the lowest temperature
setting and set SYSTEM switch to HEAT or AUTO. position.
Step 2 — Close the manual gas valve.
Step 3 — Turn off the electrical supply to the unit and
install lockout tag.
Step 4 — Remove the burner access panel.
Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. Refer to this manual. For
assistance or additional information consult a
qualified installer, service agency, or the gas
supplier.
Step 5 — Move the control on the gas valve to the OFF
position and wait 5 minutes.
Step 6 — Move control on gas valve to ON position.
Step 7 — Replace the burner access panel.
Step 8 — Turn on the electrical supply to unit.
Step 9 — Open the manual gas valve.
Step 10 — Set room thermostat selector slightly above
Before performing recommended maintenance, be sure
main power switch to unit is turned off and lockout tag is
installed. Electrical shock could cause personal injury.
Your rooftop combination heating/cooling unit is equipped
with an automatic direct spark ignition and induced draft combustion blower.
room temperature to start unit. The induced-draft combustion
air fan will start. Main gas valve will open and main burners
should ignite within 5 seconds. If the burners do not light, there
is a 22-second delay before another 5-second try. If the burner
still does not light, the time delay is repeated. If the burner does
not light within 15 minutes, there is a lockout. If burners still do
not light, call for service.
Step 11 — Set the temperature selector on room thermostat
to desired setting.
Do not attempt to light by hand; personal injury may result.
If the main burners fail to light, or the blower fails to come
on, shut down gas heating section and call your dealer for
service. Failure to follow these requirements could result in
serious personal injury.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 534-80104
Printed in U.S.A.
Form 48T-1SO
Pg 1
502
3-02
Replaces: 48TF-2SO
Book 1 4
Tab 1a 6a
Step 4 — Remove the burner access panel.
Step 5 — Move the control on the gas valve to the OFF
position.
Step 6 — Replace the burner access panel.
Step 7 — If unit is being shut down because of a malfunction, call your dealer as soon as possible.
If unit is being shut down because the heating season has
ended, restore electrical power to the unit to ensure operation
of the cooling system during the cooling season.
Should overheating occur, or the gas supply fail to shut off,
shut off the manual gas valve to the unit before shutting off the
electrical supply.
Do not use this unit if any part has been under water. Immediately call a qualified service technician to inspect the unit and
to replace any part of the control system and any gas control
which has been under water.
GAS VALVE
Fig. 1A — Gas Valve Location (Sizes 004-007)
MAINTAINING YOUR UNIT
All maintenance should be handled by skilled, experienced
personnel. Your dealer can help you establish a standard
procedure.
For your safety, keep the area around the unit clear and free
of combustible materials, gasoline, and other flammable liquids and vapors.
To ensure proper functioning of the unit, flow of combustion and ventilating air must not be prevented from reaching
the unit. Clearance of at least 3 ft on size 004-007 units and 4 ft
on size 008-014 units on the flue and condenser sides and 6 in.
on all other sides is required. A clearance of 5 ft is required
above the condenser discharge.
Fig. 1B — Gas Valve Location (Sizes 008-014)
ROUTINE MAINTENANCE AND CARE
FOR THE EQUIPMENT OWNER
TO SHUT UNIT OFF
Consider the following information before maintaining or
servicing equipment:
Do not turn off the electrical power to unit without first
turning off the gas supply.
Failure to follow this procedure can result in serious fire
or personal injury.
1. TURN OFF GAS SUPPLY AND THEN ELECTRICAL POWER TO YOUR UNIT BEFORE SERVICING OR PERFORMING MAINTENANCE.
2. Do not turn off electrical power to this unit without
first turning off the gas supply.
3. When removing access panels or performing maintenance functions inside your unit, be aware of sharp
sheet metal parts and screws. Although special care
has been taken to reduce sharp edges inside the unit,
be extremely careful when handling parts or reaching
into the unit.
Refer to Fig. 3 while proceeding with the following steps.
Step 1 — Set room thermostat to lowest temperature setting
and set SYSTEM switch to OFF position.
Step 2 — Close the external manual gas valve.
Step 3 — Turn off the electrical power supply to unit and
install lockout tag.
2
MAIN
ON
OFF
LOCK-OUT
TAG
STEP 1
STEP 3
STEP 2
TWO-STAGE VALVE
ONE-STAGE VALVE
STEP 4
ONE-STAGE VALVE
ONE STAGE
48TFD,TMD005-009
48TFE,TME004-007
48TFF,TMF004-006 (single phase)
48TFG,TMG005,006
48TFH,TMH004-006
48TFK,TMK004-006
48TFL,TML005,006
48TFM,TMM004-006
48TFN,TMN004-006
TWO-STAGE VALVE
TWO STAGE
48TFF,TMF004-006 (3 phase)
48TFD,TMD012, 014
48TFE,TME008-014
48TFF,TMF007-014
STEP 5
ONE STAGE
48TFD,TMD005-009
48TFE,TME004-007
48TFF,TMF004-006 (single phase)
48TFG,TMG005,006
48TFH,TMH004-006
48TFK,TMK004-006
48TFL,TML005,006
48TFM,TMM004-006
48TFN,TMN004-006
TWO STAGE
48TFF,TMF004-006 (3 phase)
48TFD,TMD012, 014
48TFE,TME008-014
48TFF,TMF007-014
STEP 7
STEP 6
STEP 8
→
STEP 9
STEP 10
Fig. 2 — To Light Unit
3
502
MAIN
ON
OFF
STEP 1
STEP 1
STEP 3
STEP 2 STEP 2
LOCK-OUT
TAG
STEP 3
TWO-STAGE VALVE
ONE-STAGE VALVE
48TFD005-009
48TFE004-007
48TFL005,006
48TFM004-006
STEP 4
48TFF004-012
48TFD012,014
48TFE008,014
48TFN004-006
STEP 5
ONE STAGE
48TFD,TMD005-009
48TFE,TME004-007
48TFF,TMF004-006 (single phase)
48TFG,TMG005,006
48TFH,TMH004-006
48TFK,TMK004-006
48TFL,TML005,006
48TFM,TMM004-006
48TFN,TMN004-006
STEP 4
TWO STAGE
48TFF,TMF004-006 (3 phase)
48TFD,TMD012, 014
48TFE,TME008-014
48TFF,TMF007-014
STEP 5
48TFD005-009
48TFE004-007
48TFL005,006
48TFM004-006
48TFF004-012
48TFD012,014
48TFE008,014
48TFN004-006
STEP 7
STEP 6
STEP 6
STEP 7
→
Fig. 3 — To Shut Unit Off
STEP 8
STEP 9
Fig. 2 — To Light Unit
502
4
STEP 10
Air Filter(s) — Air filter(s) should be checked at least ev-
Heat Exchanger — To ensure dependable and efficient
heating operation, the heat exchanger should be checked by a
qualified maintenance person before each heating season, and
cleaned when necessary. This checkout should not be attempted by anyone not having the required expertise and equipment
to do the job properly. Checking and/or cleaning the heat
exchanger involves removing the gas controls assembly and
the flue collector box cover and, when completed, reinstalling
the gas controls assembly for proper operation. Also, the flue
collector box cover must be replaced correctly so that a proper
seal is maintained. Contact your dealer for the required periodic maintenance.
ery 3 or 4 weeks and changed or cleaned when necessary.
Table 1 indicates the correct filter size for your unit. See Fig. 4
for filter access door location.
To replace or inspect filters:
1. Lift up and remove filter access panel.
2. While holding filter, tilt upper filter rack.
3. Remove filters by pulling up and out toward you from the
track.
4. Inspect or replace filters.
5. Return filters to filter track. Note direction of airflow
arrows on filter frame.
6. Replace filter access panel.
If you have difficulty in locating your air filter, or if you
have questions concerning proper filter maintenance, contact
your dealer for instructions. When replacing your unit filters,
always use the same size and type of filter that was originally
supplied by the installer.
Units with outdoor air capability have a cleanable filter for
the outdoor air. This filter should be checked annually and
cleaned as necessary with steam or hot water and a mild detergent. Do not use throwaway filters in place of cleanable filters.
Fans, Belts and Fan Motor — Periodically check the
condition of the fan wheels and housings, belt tension and fan
motor shaft bearings. No lubrication of condenser or evaporator fan bearings or motors is required or recommended.
Evaporator and Condenser Coils — Cleaning of the
coils should be done by qualified service personnel. Contact
your dealer for the required annual maintenance.
Condensate Drain — The drain pan and condensate
drain line should be checked and cleaned at the same time the
cooling coils are checked by your dealer.
Compressor — All compressors are factory supplied with
a normal charge of the correct type refrigeration-grade oil in
them and should not require additional oil.
Never operate your unit without filters in place. Failure to
heed this warning may result in damage to the blower
motor and/or compressor. An accumulation of dust and lint
on internal parts of your unit can cause loss of efficiency
and, in some cases, fire.
Condenser Fan
Do not poke sticks, screwdrivers, or any other object into
revolving fan blades. Severe bodily injury may result.
Table 1 — Indoor-Air Filter Data
UNIT SIZE
48TF,TM
004-007
008, 009
012, 014
The fan must be kept free of all obstructions to ensure
proper cooling. Contact your dealer for any required service.
INDOOR-AIR FILTERS
(Throwaway Fiberglass)
Quantity
Size (in.)
2
16 x 25 x 2
4
16 x 20 x 2
4
20 x 20 x 2
Electrical Controls and Wiring — Electrical controls
are difficult to check without proper instrumentation; therefore,
if there are any discrepancies in the operating cycle, contact
your dealer and request service.
Refrigerant Circuit — The refrigerant circuit is difficult
NOTE: Replacement filters should be UL (Underwriters’ Laboratories) certified or equivalent.
to check for leaks without the proper equipment; therefore, if
inadequate cooling is suspected, contact your local dealer for
service.
FILTER ACCESS PANEL
Sizes 004-007
Sizes 008-014
Fig. 4 — Typical Filter Access Panel Location
5
Combustion Area and Vent System — The com-
Unit Panels — After performing any maintenance or
service on the unit, be sure all panels are securely fastened in
place to prevent rain from entering unit cabinet and to prevent
disruption of the correct unit airflow pattern.
bustion area and vent system should be visually inspected
before each heating season. The normal accumulation of dirt,
soot, rust, and scale can result in loss of efficiency and improper performance if allowed to build up.
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 of all flue product passages — including the
burner, heat exchanger, and flue collector box.
2. Inspection of all combustion- and ventilation-air passages
and openings.
3. Close inspection of all gas pipes leading to and inside
your unit.
4. Inspection, and if required, cleaning of the condenser and
evaporator coils.
5. Inspection, and if required, cleaning of the condensate
drain pan and trap.
6. Inspection of all supply- and return-air ducts for leaks,
obstructions, and insulation integrity. Any problems
found should be resolved at the time of inspection.
7. Inspection of the unit base for cracks, gaps, etc., which
may cause a hazardous condition.
8. Inspection of the unit casing for signs of deterioration.
9. Inspection of all electrical wiring and components to ensure proper connection.
10. Inspection for leaks in the refrigerant circuit. Pressurecheck to determine appropriate refrigerant charge.
11. Inspection and cleaning of fan wheels and housings,
belt tension, and fan motor, shaft bearings, and pulley
alignment.
12. Operational check of the unit to determine working conditions. Repair or adjustment should be made at the time
of inspection.
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.
If your unit makes an unusual or especially loud noises
during heating, shut down the heating section and call your
dealer.
See Fig. 1A, 1B and 5 and proceed as follows to inspect the
combustion area and power-venting system of your unit.
1. Turn off gas supply to your unit.
2. Turn off electrical power to your unit.
3. Remove burner access panel.
4. Using a flashlight, carefully inspect the burner areas for
dirt, soot, or scale.
If dirt, soot, rust, or scale accumulations are found, call
your dealer and do not operate your heating section.
5. When you have completed your inspection, follow the
start-up procedures in this manual to restore your unit to
operation.
6. Observe unit heating operation.
Components in heat section may be hot after unit has been
started up. When observing flame, be careful not to get to
close to or touch heating components. Serious personal
injury may result.
Watch the burner flame to see if it is bright blue. If you
observe a suspected malfunction or that the burner flame
is not bright blue, call your dealer.
7. Replace burner access panel.
INDUCED-DRAFT
MOTOR
GAS VALVE
Fig. 5 — Typical Heat Section Detail
(Size 004-007 Shown)
6
BEFORE YOU CALL FOR SERVICE, CHECK
FOR PROBLEMS THAT CAN BE
EASILY SOLVED
NOTE: Before proceeding with the next check, turn OFF the
electrical power supply to the unit. Remove the control access
door.
( ) During the heating season, check the control dial on the
gas valve. Is it in the ON position? If it is not, be sure it has not
been turned off for safety reasons. If no safety hazards are
present, follow the start-up procedures in this manual.
( ) 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.
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 above the indoor temperature during the heating season,
or below the indoor temperature during the cooling season. Be
sure the SYSTEM switch in the proper HEAT, COOL or
AUTO. position and not in the OFF position.
( ) Is the electrical supply switch ON? Are any fuses blown,
or has the circuit breaker tripped?
( ) During the heating season, check the external manual shutoff valve. Is this lever parallel with the pipe, indicating that the
valve is open? Or is the lever at a right angle, indicating that
the valve is closed? If closed, has the gas been shut off for
safety reasons? Otherwise, you may open the valve and follow
the start-up procedures listed in this manual.
IN CASE OF TROUBLE
If, after performing the above, unit performance is unsatisfactory, shut off the unit and call your dealer.
Dealer’s Name _____________________________________
Telephone No. _____________________________________
Unit Model ________________________________________
7
CARRIER CORPORATION
®
IF YOUR UNIT DOES NOT WORK, FOLLOW THESE STEPS IN ORDER:
FIRST:
Contact the installer. You may find his name on the product or in your
Homeowner's Packet. If his name is not known, call your builder if
yours is a new residence.
SECOND: Contact the nearest CARRIER distributor. (See telephone yellow pages.)
THIRD: Contact:
CARRIER CORPORATION
Consumer Relations Department
P.O. Box 4808
Syracuse, New York 13221
Phone: 1-800-CARRIER (227-7437)
Model No.
Unit Serial No.
Date of Installation
Installed by
Name of Owner
Address of Installation
Outdoor Cooling or Heating-Cooling Product
(Units Smaller Than 185,000-Btuh Cooling Capacity)
Limited Warranty
ONE-YEAR WARRANTY—This CARRIER CORPORATION (herein after referred
to as ‘COMPANY’) product is warranted to be free from defects in material and
workmanship under normal use and maintenance for a period of one year from
the date of original installation whether or not actual use begins on that date. A
new or remanufactured part, at the COMPANY'S sole option, to replace any
defective part will be provided without charge for the part itself; PROVIDED the
defective part is returned to our distributor through a qualified servicing dealer.
The replacement part assumes the unused portion of the warranty.
THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred
for diagnosing, repairing, removing, installing, shipping, servicing or handling of
either defective parts or replacement parts or complete unit. Such costs may be
covered by a separate warranty provided by the installer.
EXTENDED 4-YEAR WARRANTY ON COMPRESSOR ONLY —During the
second through fifth years after the date of original installation, the COMPANY
further warrants the compressor against defects in material or workmanship under
normal use and maintenance. A new or remanufactured compressor, at the
COMPANY'S sole option, will be provided under the same conditions as stated in
the ONE-YEAR WARRANTY.
LIMITATIONS OF WARRANTIES—ALL IMPLIED WARRANTIES (INCLUDING
IMPLIED WARRANTIES OF MERCHANTABILITY) ARE HEREBY LIMITED IN
DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY IS GIVEN.
SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED
WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE
EXPRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND
MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR,
DEALER, OR OTHER PERSON WHATSOEVER.
ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED
DURING NORMAL WORKING HOURS. ALL REPLACEMENT PARTS, WHETHER
NEW OR REMANUFACTURED, ASSUME AS THEIR WARRANTY PERIOD ONLY
THE REMAINING TIME PERIOD OF THIS WARRANTY.
THE COMPANY WILL NOT BE RESPONSIBLE FOR:
1. Normal maintenance as outlined in the installation and servicing instructions or
owner's manual including coil cleaning, filter cleaning and/or replacement and
lubrication.
2. Damage or repairs required as a consequence of faulty installation, misapplication,
abuse, improper servicing, unauthorized alteration or improper operation.
3. Failure to start due to voltage conditions, blown fuses, open circuit breakers or
other damages due to the inadequacy or interruption of electrical service.
EXTENDED 4-YEAR WARRANTY ON GAS-FIRED HEAT EXCHANGER
ONLY —During the second through fifth years after the date of original installation,
the COMPANY further warrants the gas-fired heat exchanger against defects in
material or workmanship under normal use and maintenance. A new or
remanufactured heat exchanger, at the COMPANY'S sole option, will be provided
under the same conditions as stated in the ONE-YEAR WARRANTY.
4. Damage as a result of floods, winds, fires, lightning, accidents, corrosive
environments or other conditions beyond the control of the COMPANY.
THESE EXTENDED WARRANTIES DO NOT INCLUDE LABOR OR OTHER
COSTS incurred for diagnosing, repairing, removing, installing, shipping, servicing
or handling of either defective parts or replacement parts.
7. Electricity or fuel costs or increases in electricity or fuel costs from any reason
whatsoever including additional or unusual use of supplemental electric heat.
THESE WARRANTIES APPLY ONLY TO PRODUCTS IN THEIR ORIGINAL
INSTALLATION LOCATION AND BECOME VOID UPON REINSTALLATION.
5. Parts not supplied or designated by the COMPANY, or damages resulting from
their use.
6. COMPANY products installed outside the continental U.S.A., Alaska, Hawaii and
Canada.
8. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER. Some states do not allow the
exclusion of incidental or consequential damages, so the above limitation may not
apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Catalog No. 530-098
Effective on product manufactured after July 1, 1987. Supersedes any other warranty certificates supplied with the product.
Copyright 2002 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Catalog No. 534-80104
Printed in U.S.A.
Form 48T-1SO
Pg 8
502
3-02
Replaces: 48TF-2SO
Book 1 4
Tab 1a 6a
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