Carrier Seer 48Es Users Manual
CARRIER Package Units(both units combined) Manual L0901377 CARRIER Package Units(both units combined) Owner's Manual, CARRIER Package Units(both units combined) installation guides
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Owner's Information Manual
Fig. 1 - Unit 48ES
A08438
NOTE TO EQUIPMENT OWNER:
For your convenience, please record the model and serial numbers of your new equipment in the spaces
)rovided. This information, along with the installation data and dealer contact information, will be helpful
should your system require maintenance or service.
UNIT INFORMATION
Model #
Serial #
ACCESSORIES (List type and model #)
INSTALLATION INFORMATION
Date Installed
DEALERSHIP CONTACT INFORMATION
Company Name
Address
Phone Number
Technician Name
NOTE TO INSTALLER:
This manual must be left with the equipment owner.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. consult local
building codes, the current editions of the National Fuel Gas
Code (NFGC) NFPA 54/ANSI Z223.1, and the National
Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the National Standards
of Canada CAN/CSA-B149.1 and .2 Natural Gas and Propane
Installation codes, and Canadian Electrical Code CSA C22.1
Recognize safety information. This is the safety-alert symbol/_.
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand
these signal words: DANGER, WARNING, and CAUTION.
These words are used with the safety-alert symbol. DANGER
identifies the most serious hazards which will result in severe per-
sonal injury or death. WARNING signifies hazards which could
result in personal injury or death. CAUTION is used to identify
unsafe practices which may result in minor personal injury or
product and property damage. NOTE is used to highlight sugges-
tions which will result in enhanced installation, reliability, or op-
eration.
Note: Installer: This manual should be left with the equipment user.
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal iniury,
death or property damage.
Installation and servicing of this equipment can be hazardous
due to mechanical and electrical components. Only trained
and qualified personnel should install, repair, or service this
equipment.
FIRE AND EXPLOSION HAZARD
What to do if you smell gas:
1. Do not try to light any appliance.
2. Do not touch any electrical switch; do not use any phone in
your building.
3. Leave the building immediately.
4. Immediately call your gas supplier from a nearby phone.
Follow the gas supplier's instructions.
5. If you cannot reach your gas supplier, call the fire
department.
ELECTRICALSHOCK HAZARD
Failure to follow this warning could result in personal iniury
and/or death.
Before perfornfing recommended maintenance, be sure the
main power switch to unit is turned off and lock-out tag is
installed.
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal iniury,
death and/or property damage.
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.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal iniury,
death, and/or property damage.
Do not store or use combustible materials, gasoline, or other
flammable vapors and liquids in the vicinity of this or any
other appliance.
FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal iniury,
death or property damage.
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 which has
been under water.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal iniury,
death, and/or property damage.
Do not attempt to light by hand.
CUT HAZARD
Failure to follow this caution may result in personal iniury.
When removing access panels or perfornfing maintenance
functions inside your unit, be aware of sharp sheet metal parts
and screws. Although special care is taken to reduce sharp
edges to a nfinimum, be extremely careful when handling
parts or reaching into the unit.
()NITINTRODUCTION
This48ESunitisasmallpackagedgasheat/electriccoolingsystem
thatcanutilizethecomfortofgasheatingpackagedalongwitheffi-
cientelectricairconditioning.ThisunitusesPuron®,theozone
friendlyrefrigerantforcooling.
StartingorShuttingOffUnit
Note:Yourcombinationheating/coolingunitisequippedwithan
automaticdirectsparkignitionandpowercombustionblower.
Tostartunit gas heat:
Refer to Fig. 2 for location of unit front access panel. Refer to Fig.
3 for location of gas valve. Refer to Fig. 4 while proceeding with the
following steps.
1. Set the temperature selector on room thermostat to the lowest
temperature setting and set system switch to HEAT.
2. Close the external manual gas shutoff valve.
3. Turn off the electrical supply to the unit.
4. Remove the front access panel with a 5/16-in. nut driver.
5. Move the selector switch on the internal gas valve to the OFF
position and wait 5 minutes.
6. Move the selector switch on the internal gas valve to the ON
position.
7. Replace the front access panel.
8. Turn on the electrical supply to unit.
9. Open the external manual gas shutoff valve.
10. Set the temperature selector on room thermostat slightly
above room temperature to start unit. The induced-draft
combustion air fan will start. Main gas valve will open and
main burners should ignite within 5seconds. If the burner
does not light within 5seconds, the ignition module will go
into a Retry Mode after a period of approximately 22
seconds (following the 5-second ignition period). If the
burners do not light within 15 minutes of the initial call for
heat, there is a lockout.
11. Set the temperature selector on room thermostat to desired
setting.
FILTER ACCESS
PANE L*
ACCESS PANEL
*For accessory filter rack.
Fig. 2-Accessory Filter Rack Access Panel
(Optional Louvered Panels Shown)
A08439
FIRE AND EXPLOSION HAZARD
Failure to follow this warning could result in personal iniury,
death, and/or property damage.
1. If the main burners fail to light, or the blower fails to start,
shut down gas heating section and call your dealer for service.
2. 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.
To shut offunit gas heat:
FIRE, EXPLOSION, ELECTRICAL SHOCK
HAZARD
Failure to follow this warning could result in personal iniury,
death, and/or property damage.
Do not turn off the electrical power to unit without first
turning off the gas supply.
Note:If the unit is being shut down because of a malfunction, call
your dealer as soon as possible.
Should overheating occur or the gas supply fail to shut off, shut off
the external manual gas valve to the unit before shutting off the elec-
trical 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.
Refer
1.
to Fig. 5 while proceeding with the following steps.
Set the temperature selector on room thermostat to lowest
temperature setting and set system SWITCH to OFF.
2. Close the external manual shutoff valve.
3. Turn off the electrical power supply to the unit.
4. Remove the front access panel.
5. Move the selector switch on the internal gas valve to the OFF
position.
6. Replace the front access panel.
To start unit electric cooling:
Refer to Fig. 6 while proceeding with the following steps.
1. Set the temperature selector on room thermostat to highest
temperature setting and set system SWITCH to OFF.
2. Close the external manual shutoff valve.
3. Turn off the electrical power supply to the unit.
4. Remove the front access panel.
5. Move the selector switch on the internal gas valve to the OFF
position.
6. Replace the front access panel
7. Restore electrical power to the unit and set system switch to
COOL.
8. Set the temperature selector on room thermostat slightly be-
low the room temperature to start unit.
To shut off unit electric cooling:
Refer to Fig. 7 while proceeding with the following steps.
1. Set the temperature selector on room thermostat to highest
temperature setting and set system SWITCH to OFF.
2. Close the external manual shutoff valve.
3. Turn off the electrical power supply to the unit.
OPERATINGYOURUNIT
Theoperationofyourunitiscontrolledbythe indoor temperature
control (thermostat). You simply adjust the thermostat and it main-
tains the indoor temperature at the level you select. Most thermostats
of heating and cooling systems have 3 controls: a temperature con-
trol selector, a FAN control, and a SYSTEM or MODE control. Re-
fer to your thermostat owner's manual for more information.
To better protect your investment and to eliminate unnecessary ser-
vice calls, familiarize yourself with the following facts:
Cooling Mode
With the SYSTEM control set to COOL, your unit will run in cool-
ing mode until the indoor temperature is lowered to the level you
have selected. On extremely hot days, your unit will run for longer
periods at a time and have shorter "off' periods than on moderate
days.
Gas Heat Mode
With the SYSTEM or MODE control of your indoor thermostat set
to HEAT, your unit will run in heating mode until room temperature
is raised to the level you have selected. On cold days and nights,
your system will typically run for longer periods of time and have
shorter "off' periods than on moderate days.
MAINTENANCE AND SERVICE
This section discusses maintenance that should be performed on
your system. Most maintenance should be performed by your deal-
er. You, as the owner, may wish to handle some nfinor maintenance
for your new unit.
Routine Maintenance
All routine maintenance should be handled by skilled, experienced
personnel. Your dealer can help you establish a standard procedure.
For your safety, keep the unit area clear and free of combustible ma-
terials, gasoline, and other flamnaable liquids and vapors.
To assure proper functioning of the unit, flow of condenser air must
not be obstructed from reaching the unit. Clearance from the top of
the unit is 48 in. (1219 ram). Clearance of at least 36 in. (914 ram)
is required on sides except the power entry side (42 in. (1067 ram)
clearance) and the duct side (12 in. (305 ram) nfininmm clearance).
Also, ensure that the return-air duct connection (s) is physically
sound, is sealed to the furnace casing, and ternfinates outside the
space containing the furnace.
Maintenance and Care for the Equipment Owner
Before perfornfing equipment maintenance yourself, please care-
fully consider the following:
FIRE, EXPLOSION, ELECTRICAL SHOCK AND
CUT HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
1. Turn off gas supply first, then all electrical power to your
unit and install lock-out tag before servicing or perform-
ing maintenance.
2. When removing access panels or perfornfing maintenance
functions inside your unit, be aware of sharp sheet metal
parts and screws. Although special care is taken to reduce
sharp edges to a nfininmm, be extremely careful when
handling parts or reaching into the unit. Wear safety
glasses, gloves, and appropriate protective clothing.
Air Filters
The air filter(s) should be checked every 3 or 4 weeks and changed
or cleaned whenever it becomes dirty. Dirty filters produce exces-
sive stress on the blower motor and can cause the motor to overheat
and shut down.
This unit nmst have air filters in place before it can be operated.
These filters can be located in one of at least two places. In many ap-
plications, the installer will provide return air filter grilles mounted
on the wall or ceiling of the conditioned structure. In the instance of
filter grilles, the filters can simply be removed from the grille and re-
placed.
The other typical application is an accessory filter rack installed in-
side the unit itself. The following information is given to assist in
changing filters used in these internal filter racks.
Table 1 indicates the correct indoor filter size for your unit. Refer
to Fig. 2 to access filters installed in the accessory filter rack. If using
an Accessory Filter Rack, refer to the Installation Instructions pro-
vided with it for correct filter sizes and quantities.
Table 1--Indoor Air Filter Data
Unit Size Filter Size
48ES024040 20x20x1 (508x508x25 mm)
48ES024060,48ES030 20x24x1 (508x610x25 mm)
48ES036 - 48ES042 24x30x1 (610x762x25 mm)
48ES048 - 48ES060 24x36x1 (610x914x25 mm)
13urners Flue
Gas V:Jlve Ilood
A08582
Fig. 3 - Gas Heating/Electric Cooling Unit with access panel
removed
To replace or inspect filters in accessory filter rack (See Fig. 2):
1. Remove the filter access panel using a 5/16-in. nut driver.
2. Remove the filter(s) by pulling it out ofthe unit. If the filter(s)
is dirty, clean or replace with a new one.
When installing the new filter(s), note the direction of the airflow ar-
rows on the filter frame.
If you have difficulty locating your air filter(s) or have questions
concerning proper filter maintenance, contact your dealer for in-
structions. When replacing filters, always use the same size and type
of filter that was supplied originally by the installer.
UNIT OPERATION HAZARD
Failure to follow this caution may result in property damage.
Never operate your unit without filters in place. An
accunmlation of dust and lint on internal parts of your unit can
cause loss of efficiency and blower motor and/or compressor
damage.
Fans and Fan Motors
Periodically check the condition of fan wheels and housings and fan
motor shaft bearings. Contact your dealer for the required annual
maintenance.
Heat ExchanRer
To ensure dependable and efficient heating operation, the heat ex-
changer should be checked by a qualified maintenance person be-
fore each heating season, and cleaned when necessary. This check-
out should not be attempted by anyone not having the required
expertise and equipment to properly do the job. Contact your dealer
for the required periodic maintenance.
Indoor and Outdoor Coils
Cleaning of the coils should only be done by qualified service per-
sonnel. 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 deal-
er.
Compressor
All compressors are factory shipped with a normal charge of the cor-
rect type of refrigeration grade oil. A compressor should rarely re-
quire additional oil.
Condenser (Outdoor) Fan
PERSONAL INJURY AND UNIT DAMAGE HAZARD
Failure to follow this warning could result in personal injury,
death or property damage.
Do not insert sticks, screwdrivers, or any other objects into
revolving fan blades.
The fan must be kept free of all obstructions to ensure proper cool-
ing. Contact your dealer for any required service.
Electrical Controls and Wirin_
Electrical controls are difficult to check without proper instrumenta-
tion. 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 prop-
er equipment. If inadequate cooling is suspected, contact your local
dealer for service.
EXPLOSION AND ENVIRONMENTAL HAZARD
Failure to follow this warning could result in personal injury,
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 pat-
tern.
Combustion Area and Vent System
For proper and safe operation, the furnace needs air for combustion
and ventilation. The air openings, on the furnace, the air openings
to the area in which the furnace is installed, and the spacing around
the furnace must not be blocked or obstructed.
The combustion area and vent system should be inspected visually
before each heating season. The normal accumulation of dirt, soot,
rust, and scale can result in loss of efficiency and improper perform-
ance if allowed to build up. This inspection should be done by a
trained service person.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal injury,
death and/or property damage.
If your unit makes an especially loud noise when the main
burners are ignited, shut down the heating section and call
your dealer.
BURN HAZARD
Failure to follow this caution may result in personal injury.
Components in heating section may be hot after unit has been
started up. When observing flame, be careful not to get close
to or touch heating components.
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 burn-
ers, heat exchanger, and flue collector box, Mare sure the
burner flames are blue in color and in proper adjustment. Re-
fer to Fig. 8 for burner flame.
2. Inspection of all combustion-and ventilation-air passages
and openings.
3. Closeinspectionofallgaspipesleadingto andinsideofyour
unit.
4. Inspection and, if required, cleaning of the outdoor and
indoor coils.
5. Inspection and, if required, cleaning of the indoor coil con-
densate drain pan.
@
STEP1
STEP 6
MAIN
ON_
OFF
STEP8
STEP 4
STEP2
STEP 9
Fig. 4 - To Start Unit Gas Heat
MAIN
OF_
STEP3
STEP 5
m
STEP 7
STEP10
A07662
I@
STEP1
L_
STEP2
MAIN
ON
OFF
STEP3
J
STEP 4
E
STEP 5
STEP 6
Fig. 5 - To Shut-off Unit Gas Heat
A07663
I
STEP1 STEP2
MAIN
ON
OFF
STEP3
STEP 4
f
[
STEP 5
MAIN °il
OFF
STEP 6 STEP 7
STEP8
Fig. 6 -To Start Unit Electric Cooling
A07796
I
STEP1 STEP2
Fig. 7- To Shut-off Unit Electric Cooling
BURNER FLAME Warranty Certificate
MAINoN -[_
STEP3
A07797
BURNER
Your unit has alimited warranty. Be sure to read the warranty care-
fully to determine the coverage for your unit.
Before you call for service...
...check for several easily-solved problems.
MANIFOLD
C99021
Fig. 8 - Monoport Burner
6. Inspection and cleaning of blower wheel housing and motor.
7. Inspection of all supply-air and return-air ducts for leaks,
obstructions, and insulation integrity. Any problems found
should be resolved at this time.
8. Inspection of the unit base to ensure that no cracks, gaps, etc.,
exist which may cause a hazardous condition.
9. Inspection of the unit casing for signs of deterioration.
10. Inspection of all electrical wiring and components to assure
proper connection.
11. Inspection for leaks in the refrigerant circuit. Pressure check
to determine appropriate refrigerant charge.
12. 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.
If insufficient heating or cooling is suspected:
( ) Check for sufficient airflow. Check the air filter for dirt. Check
for blocked return-air 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 posi-
tion and not in the OFF position.
( ) 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 unsatis-
factory, shut off the unit and call your dealer.
®
Turn to the Expertg:
TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or classified section of your local telephone directory under the
"Heating Equipment" or "Air Conditioning Contractors & Systems" heading for dealer listing by brand name.
Have available the Model No., Series Letter, & Serial No. of your equipment to ensure correct replacement part.
Copyright 2008 Carrier Corporation Printed in the U.S.A. Edition Date: 11/08
Manufacturer reserves the right to change, at any time, specifications and design without notice and without obligation.
Catalo_ No: OM48ES-01
Replaces: 0M48-27
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