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

A08438

Fig. 1 - Unit 48ES

NOTE TO EQUIPMENT

OWNER:

For your convenience,
please record the model and serial numbers of your new equipment
)rovided.
This information, along with the installation data and dealer contact information,
should your system require maintenance or service.
UNIT INFORMATION

INSTALLATION

Model #

Date Installed

Serial #

DEALERSHIP

ACCESSORIES

Address

INFORMATION

CONTACT INFORMATION

Company Name
(List type and model #)

in the spaces
will be helpful

Phone Number
Technician Name

NOTE TO INSTALLER:
This manual must be left with the equipment

owner.

SAFETY
Improper

installation,

CONSIDERATIONS

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
packaged with the kits or accessories when installing.

instructions

Follow all safety codes. Wear safety glasses, protective
clothing,
and work gloves. Have a fire extinguisher
available. Read these
instructions
thoroughly
and follow
included
in literature
and attached
building

codes,

the current

all warnings
to the unit.

editions

Code
(NFGC)
NFPA
54/ANSI
Electrical Code (NEC) NFPA 70.

or cautions
consult
local

of the National
Z223.1,

Fuel

the

refer to the current

CAN/CSA-B149.1
and .2 Natural Gas and Propane
codes, and Canadian Electrical Code CSA C22.1

Recognize

safety information.
see

This is the safety-alert

this symbol

on

the unit

manuals, be alert to the potential
these signal words:
DANGER,

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.

Standards

ELECTRICALSHOCK

symbol/_.

and in instructions

for personal
WARNING,

HAZARD

Gas

of Canada
Installation

you

of the National

AND EXPLOSION

National

In Canada

When

editions

and

FIRE

or

injury. Understand
and CAUTION.

These words are used with the safety-alert
symbol. DANGER
identifies the most serious hazards which will result in severe per-

HAZARD

Failure to follow this warning
and/or death.

could result in personal

iniury

Before perfornfing
recommended
maintenance,
be sure the
main power switch to unit is turned off and lock-out
tag is
installed.

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 suggestions which will result in enhanced installation,
reliability, or operation.
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
death and/or property damage.

FIRE,

EXPLOSION,

ELECTRICAL

Failure to follow this warning
death or property damage.

SHOCK

HAZARD

could result in personal

iniury,

iniury,

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.

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,
FIRE,

EXPLOSION

Failure to follow this warning could result in personal
death, and/or property damage.

flammable vapors
other appliance.

and liquids

materials,

gasoline,

in the vicinity

iniury,

Do not

ELECTRICAL

Failure to follow this warning
death or property damage.
Do

not

use this

unit

SHOCK

HAZARD

could result in personal

if any part

has

been

to light by hand.

or other

Failure
EXPLOSION,

attempt

iniury,

of this or any

CUT
FIRE,

HAZARD

Failure to follow this warning could result in personal
death, and/or property damage.

HAZARD

Do not store or use combustible

EXPLOSION

under

iniury,
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.

HAZARD
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
This48ES
unitisasmall
packaged
gasheat/electric
cooling
system
that
canutilizethecomfort
ofgas
heating
packaged
along
withefficient
electric
airconditioning.
ThisunitusesPuron
®,theozone
friendly
refrigerant
forcooling.
Starting
orShutting
OffUnit
Note:Your
combination
heating/cooling
unitisequipped
withan
automatic
direct
spark
ignition
andpower
combustion
blower.
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
following steps.
1. Set the temperature
temperature

selector on room thermostat

setting

2. Close the external

and set system switch
manual

3. Turn off the electrical
4. Remove

gas shutoff

supply

with the

to the lowest

7. Replace

nut driver.

switch on the internal gas valve to the ON

the front access panel.

9. Open the external

supply

manual

to follow this warning
and/or

property

could result in personal

iniury,

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:

to the unit.

and wait 5 minutes.

8. Turn on the electrical

death,

valve.

the front access panel with a 5/16-in.

6. Move the selector
position.

Failure

HAZARD

to HEAT.

5. Move the selector switch on the internal gas valve to the OFF
position

FIRE AND EXPLOSION

EXPLOSION,

ELECTRICAL

SHOCK

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.

to unit.

gas shutoff

FIRE,
HAZARD

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 5 seconds. If the burner
does not light within 5 seconds, 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.

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 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.
Refer to Fig. 5 while proceeding
1. Set the temperature
temperature
setting
2. Close the external

steps.

selector on room thermostat to lowest
and set system SWITCH to OFF.
manual

3. Turn off the electrical
4. Remove

with the following

shutoff

power

valve.

supply

to the unit.

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
1. Set the temperature
temperature
setting
2. Close the external

steps.

selector on room thermostat to highest
and set system SWITCH to OFF.
manual

3. Turn off the electrical
4. Remove

with the following

shutoff

power

valve.

supply

to the unit.

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
COOL.

electrical

power

8. Set the temperature
ACCESS PANEL
FILTER ACCESS
PANE L*

1. Set the temperature
A08439

Filter Rack

Louvered

Panels

Access

Panel

Shown)

temperature

setting

2. Close the external

switch to

slightly be-

to start unit.

cooling:

Refer to Fig. 7 while proceeding

Fig. 2 - Accessory
(Optional

selector on room thermostat

low the room temperature
To shut off unit electric

*For accessory filter rack.

to the unit and set system

with the following

selector

and set system
manual

3. Turn off the electrical

steps.

on room thermostat
shutoff

power

SWITCH
valve.

supply

to highest

to OFF.

to the unit.

OPERATING
YOURUNIT
Theoperation
ofyourunitiscontrolled
bythe indoor

sive stress on the blower motor and can cause the motor to overheat
and shut down.

of heating and cooling systems have 3 controls: a temperature
control selector, a FAN control, and a SYSTEM or MODE control. Re-

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 applications, 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 replaced.

temperature
control (thermostat).
You simply adjust the thermostat and it maintains the indoor temperature
at the level you select. Most thermostats

fer to your thermostat

owner's

To better protect your investment
vice calls, familiarize
Cooling

yourself

manual

for more information.

and to eliminate
with the following

unnecessary

ser-

The other typical application is an accessory filter rack installed inside the unit itself. The following information is given to assist in
changing filters used in these internal filter racks.

facts:

Mode

With the SYSTEM control set to COOL, your unit will run in cooling 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.

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 provided with it for correct filter sizes and quantities.
Table 1--Indoor Air Filter Data

Gas Heat Mode
Unit

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
shorter "off' periods than on moderate days.
MAINTENANCE

AND

of time and have

Size

Filter

48ES024040
48ES024060,48ES030

Size

20x20x1

(508x508x25

mm)

20x24x1

(508x610x25

mm)

48ES036

-

48ES042

24x30x1

(610x762x25

mm)

48ES048

-

48ES060

24x36x1

(610x914x25

mm)

SERVICE

This section discusses maintenance that should be performed on
your system. Most maintenance should be performed by your dealer. 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 materials, 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

Before perfornfing
fully consider

for the Equipment

equipment

maintenance

13urners
Gas V:Jlve

A08582

Owner
yourself,

Flue
Ilood

please care-

the following:

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.

FIRE,
EXPLOSION,
CUT HAZARD

ELECTRICAL

SHOCK

AND

2. Remove the filter(s) by pulling it out ofthe unit. If the filter(s)
is dirty, clean or replace with a new one.

Failure to follow this warning could result in personal injury,
death or property damage.

When installing the new filter(s), note the direction of the airflow arrows on the filter frame.

1. Turn off gas supply first, then all electrical power to your
unit and install lock-out tag before servicing or performing maintenance.

If you have difficulty locating your air filter(s) or have questions
concerning proper filter maintenance, contact your dealer for instructions. When replacing filters, always use the same size and type
of filter that was supplied originally by the installer.

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-

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

Unit Panels

Periodically check the condition of fan wheels and housings
motor shaft bearings. Contact your dealer for the required
maintenance.

and fan
annual

unit cabinet and to prevent
tern.

Heat ExchanRer
To ensure dependable

and efficient

heating

operation,

the heat ex-

changer 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
for the required periodic
Indoor

and Outdoor

to properly do the job. Contact
maintenance.

your dealer

Coils

Cleaning of the coils should only be done by qualified service personnel. Contact your dealer for the required annual maintenance.
Condensate

After performing
any maintenance
or service on the unit, be sure all
panels are fastened securely in place to prevent rain from entering

Drain

Combustion

disruption

of the correct unit airflow pat-

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
the furnace must not be blocked or obstructed.

around

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 performance if allowed to build
trained service person.

up. This inspection

should

be done by a

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 shipped with a normal charge of the correct type of refrigeration grade oil. A compressor should rarely require additional oil.

FIRE,

Condenser

If your unit makes an especially loud noise when the main
burners are ignited, shut down the heating section and call
your dealer.

(Outdoor)

PERSONAL

Fan

INJURY

AND UNIT

Failure to follow this warning
death or property damage.

DAMAGE

ing. Contact

your dealer for any required

Electrical

Controls

Electrical

controls

to ensure proper

into

cool-

service.

in personal

injury,

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.

and Wirin_
are difficult

to check without

proper instrumenta-

tion. If there are any discrepancies
in the operating
your local dealer and request service.
Refrigerant

Failure to follow this warning could result
death and/or property damage.

injury,

or any other objects

The fan must be kept free of all obstructions

HAZARD

HAZARD

could result in personal

Do not insert sticks, screwdrivers,
revolving fan blades.

EXPLOSION

cycle, contact

Regular

Dealer

Maintenance

In addition

to the type of routine

to perform,

your unit should

maintenance

be inspected

trained service technician. An inspection
at least every other year) should include

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.

1,

you might be willing
regularly

by a properly

(preferably
each year, but
the following:

Inspection of all flue product passages-including
the burners, heat exchanger, and flue collector box, Mare sure the
burner flames are blue in color and in proper adjustment.
fer to Fig. 8 for burner flame.

2. Inspection

of all combustion-and

ventilation-air

Re-

passages

and openings.
EXPLOSION

AND ENVIRONMENTAL

Failure to follow this warning
death or property damage.

HAZARD

could result in personal

injury,

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.

3. Closeinspectionofallgaspipesleadingto
unit.
4. Inspection
and,
indoor coils.

if required,

5. Inspection and, if required,
densate drain pan.

cleaning

cleaning

andinsideofyour

of the outdoor

of the indoor

and

coil con-

MAIN

@
OF_
STEP1

STEP2

STEP3

STEP 5

STEP 4

m

STEP 6

STEP 7

MAIN
ON_

OFF

STEP8

STEP 9

STEP10
A07662

Fig. 4 - To Start Unit Gas Heat

MAIN
ON

I

@

L_
STEP1

STEP2

OFF

STEP3

E

J

STEP 4

STEP 5

STEP 6
A07663

Fig. 5 - To Shut-off Unit Gas Heat

MAIN
ON

I

OFF

STEP1

STEP2

STEP3

[

f
STEP 4

STEP 5

MAIN

°il
OFF

STEP 6

STEP 7

STEP8
A07796

Fig. 6 - To Start Unit Electric

Cooling

MAINoN

-[_

I
STEP1

STEP2

STEP3
A07797

Fig. 7 - To Shut-off
BURNER FLAME

Unit Electric

Cooling

Warranty

Certificate

Your unit has a limited
fully to determine

BURNER

warranty.

Be sure to read the warranty

the coverage

care-

for your unit.

Before you call for service...
...check for several easily-solved
If insufficient

MANIFOLD

heating

or cooling

problems.
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
C99021

servicing

dealer.

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.

If your unit is not operating
easy solutions:
(

) Check

to be sure that

at all, check

the following

your thermostat

temperature

list for

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 position and not in the OFF position.

9. Inspection
10. Inspection

of the unit casing for signs of deterioration.
of all electrical

wiring

and components

to assure

proper connection.
11. Inspection for leaks in the refrigerant
to determine appropriate refrigerant
12. Operational
conditions.

check

of

the

Repair or adjustment

unit

circuit. Pressure
charge.
to determine

Start-up

service

instructions

and Service

working

contract

that

can be found in the unit Installation,

Instructions.

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.

should be made at this time.

Your servicing dealer may offer an economical service
covers seasonal inspections.
Ask for further details.
Complete

check

( ) If your unit still fails to operate, call your servicing dealer for
troubleshooting
and repairs. Specify the model and serial numbers

In Case of Trouble
If you perform
factory,

the steps above and unit performance

shut off the unit and call your dealer.

is still unsatis-

®
Turn to the Expertg:
TO OBTAIN

INFORMATION
"Heating

Equipment"

Have available
Copyright

ON PARTS:

Manufacturer

reserves

the right to change,

your installing

or "Air Conditioning

the Model

2008 Carrier Corporation

Consult

Contractors

dealer or classified
& Systems"

section

heading

No., Series Letter, & Serial No. of your equipment
Printed

in the U.S.A.

at any time, specifications

Edition Date:
and design without

11/08

notice and without

10

obligation.

of your local telephone

for dealer listing by brand
to ensure correct

directory
name.

replacement

Catalo_ No: OM48ES-01
Replaces:

0M48-27

part.

under

the



---

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