Rheem (-)LKBA180DM, (-)LKBA180CL, (-)LKBA180YL, (-)LKBA180YM, (-)LKBA240CL Installation Instructions Manual

DO NOT DESTROY. PLEASE READ CAREFULLY AND

KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALI­FIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLA­TION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ
THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE
INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION,
ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULT­ING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PER­SONAL INJURY OR DEATH.

WARNING

!

92-23577-58-01

SUPERSEDES 92-23577-58-00

INSTALLATION INSTRUCTIONS

FOR PACKAGE AIR CONDITIONERS

NOMINAL 15, 20 & 25 TON (-)LKB MODELS
AND 15 & 20 TON (-)LMB MODELS

Recognize this symbol as an indication of Important Safety Information!

!

I. TABLE OF CONTENTS

I. Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

II. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

III. Checking Product Received . . . . . . . . . . . . . . . . . . . . . 2

IV. Equipment Protection . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Electrical & Physical Data Tables. . . . . . . . . . . . . . . . 6,7

V. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

A. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1. Pre-Installation Check Points . . . . . . . . . . . . . . . . 8

2. Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

B. Outside Slab Installation . . . . . . . . . . . . . . . . . . . . . . 8

C. Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

D. Rooftop Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 9

VI. Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

VII. Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

VIII. Conversion Procedure. . . . . . . . . . . . . . . . . . . . . . . . . 10

IX. Condensate Drain, Indoor Coil . . . . . . . . . . . . . . . . . . 11

X. Electrical Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

A. Power Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

B. Special Instructions for Power

Wiring with Aluminum Conductors . . . . . . . . . . . . . 11

C. Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

D. Internal Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

E. Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

F. Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

XI. Indoor Air Flow Data . . . . . . . . . . . . . . . . . . . . . . . . . . 12

XII. Crankcase Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

XIII. Pre-Start Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

XIV. Startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

XV. Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

XVI. Auxiliary Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

XVII. Heater Kit Characteristics. . . . . . . . . . . . . . . . . . . . 16-18

XVIII. Miscellaneous

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . 20, 21

Charge Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 23

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

ä Installation Instructions are updated on a regular basis. This
is done as product changes occur or if new information
becomes available. In this publication, an arrow (ä) denotes
changes from the previous edition or additional new material.

II. INTRODUCTION

PROPOSITION 65: THIS APPLIANCE CONTAINS FIBER­GLASS INSULATION. RESPIRABLE PARTICLES OF
FIBERGLASS ARE KNOWN TO THE STATE OF CALIFOR­NIA TO CAUSE CANCER.

THE MANUFACTURER’S WARRANTY DOES NOT COVER
ANY DAMAGE OR DEFECT TO THE AIR CONDITIONER
CAUSED BY THE ATTACHMENT OR USE OF ANY COMPO­NENTS, ACCESSORIES OR DEVICES (OTHER THAN
THOSE AUTHORIZED BY THE MANUFACTURER) INTO,
ONTO OR IN CONJUNCTION WITH THE AIR CONDITION­ER. YOU SHOULD BE AWARE THAT THE USE OF UNAU­THORIZED COMPONENTS, ACCESSORIES OR DEVICES

MAY ADVERSELY AFFECT THE OPERATION OF THE AIR
CONDITIONER AND MAY ALSO ENDANGER LIFE AND
PROPERTY. THE MANUFACTURER DISCLAIMS ANY
RESPONSIBILITY FOR SUCH LOSS OR INJURY RESULT­ING FROM THE USE OF SUCH UNAUTHORIZED COMPO­NENTS, ACCESSORIES OR DEVICES.

This booklet contains the installation and operating instructions
for your package air conditioner. There are a few precautions
that should be taken to derive maximum satisfaction from it.
Improper installation can result in unsatisfactory operation or
dangerous conditions.

Read this booklet and any instructions packaged with separate
equipment required to make up the system prior to installation.
Give this booklet to the owner and explain its provisions. The
owner should retain this booklet for future reference.

III. CHECKING PRODUCT RECEIVED

Upon receiving the unit, inspect it for any damage from ship­ment. Claims for damage, either shipping or concealed, should
be filed immediately with the shipping company. Check the unit
model number, heating size, electrical characteristics, and
accessories to determine if they are correct.

IV. EQUIPMENT PROTECTION FROM THE

ENVIRONMENT

The metal parts of this unit may be subject to rust or deteriora­tion in adverse environmental conditions. This oxidation could
shorten the equipment’s useful life. Salt spray, fog or mist in
seacoast areas, sulphur or chlorine from lawn watering sys­tems, and various chemical contaminants from industries such
as paper mills and petroleum refineries are especially corro­sive.

If the unit is to be installed in an area where contaminants
are likely to be a problem, special attention should be
given to the equipment location and exposure.

1. Avoid having lawn sprinkler heads spray direction on the
unit cabinet.

2. In coastal areas, locate the unit on the side of the building
away from the waterfront.

3. Shielding provided by a fence or shrubs may give some
protection.

Regular maintenance will reduce the buildup of contami­nents and help to protect the unit’s finish.

DISCONNECT ALL POWER TO THE UNIT BEFORE START­ING MAINTENANCE. FAILURE TO DO SO CAN RESULT IN
SEVERE ELECTRICAL SHOCK OR DEATH.

1. Frequent washing of the cabinet, fan blade and coil with
fresh water will remove most of the salt or other contami­nants that build up on the unit.

2. Regular cleaning and waxing of the cabinet with a good
automobile polish will provide some protection.

3. A good liquid cleaner may be used several times a year to
remove matter that will not wash off with water.

Several different types of protective coatings are offered in
some areas. These coatings may provide some benefit, but the
effectiveness of such coating materials cannot be verified by
the equipment manufacturer.

The best protection is frequent cleaning, maintenance and
minimal exposure to contaminants.

2

Recognize this symbol as an indication of Important
Safety Information!

!

WARNING

!

WARNING

!

WARNING

!

3

FIGURE 1. UNIT DIMENSIONS (BOTTOM VIEW)

FIGURE 2. UNIT DIMENSIONS (BOTTOM VIEW)

A0886-16

A0886-20

4

FIGURE 3. UNIT DIMENSIONS

FIGURE 4. UNIT DIMENSIONS

A0886-17

A0886-21

FIGURE 5. COMPONENT LOCATION

A0886-33

5

FIGURE 6. UNIT
DIMENSIONS & COM­PONENT ACCESS

A0886-18

FIGURE 7. UNIT DIMENSIONS &
COMPONENT ACCESS

A0886-19

FIGURE 8. INTERNAL COMPONENT LOCATIONS

A0886-32

80/80

6

MODEL

NUMBER

(-)LKB

A180CL 3-60-208-230 12.4/12.4 88 2.4 11.5 74/74 80/80 80/80

A180CM 3-60-208-230 12.4/12.4 88 2.4 14.7 77/77 80/80

A180DL 3-60-460 6.4 44 2.0 7.0 43/43 45/45 45/45

A180DM 3-60-460 6.4 44 2.0 10.0 46/46 50/50 50/50

A180YL 3-60-575 5.0 34 1.0 8.0 34/34 35/35 35/35

A180YM 3-60-575 5.0 34 1.0 8.0 34/34 35/35 35/35

A240CL 3-60-208-230 17.8/17.8 124 2.4 14.7 100/100 110/110 110/110

A240CM

3-60-208-230 17.8/17.8 124 2.4 22.3 108/108 110/110 110/110

A240DL

3-60-460 9.3 59.6 2.0 10 58/58 60/60 60/60

A240DM 3-60-460 9.3 59.6 2.0 11.2 59/59 60/60 60/60

A240YL

3-60-475 7.7 49.4 1.0 8.0 45/45 50/50 50/50

A240YM

3-60-475 7.7 49.4 1.0 8.8 46/46 50/50 50/50

ELECTRICAL

PHASE

FREQUENCY

(HZ)

VOLTAGE

(VOLTS)

COMPRESSOR

LOCKED

ROTOR

AMPERES

(LRA)

RATED LOAD

AMPERES

(RLA)

FULL LOAD

AMPERES

(FLA)

MINIMUM

CIRCUIT

AMPACITY

AMPERES

MIN.

AMPS

FAN

MTR

BLWR

MTR

MAX.

AMPS

FUSE OR HACR

CIRCUIT

BREAKER

TABLE A. ELECTRICAL DATA (-)LKB MODELS

MODEL

NUMBER

(-)LKB

A180CL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1677 1897

A180CM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1707 1927

PHYSICAL

DRIVE

TYPE

FILTER OUTDOOR COIL WEIGHT

RECOMMENDED

NO. AND SIZE

[mm x mm x mm]

AREA

SQ. FT.

NO.

ROWS

CFM

R22 OZ.

[g]

SYSTEMS

1,2/3,4

NET
LBS.

(kg)

SHIPPING

LBS.

(kg)

TABLE B. PHYSICAL DATA (-)LKB MODELS

A180DL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1677 1897

A180DM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1707 1927

A180YL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1677 1897

A180YM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 82/72 1707 1927

A240CL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 77/72

77/72

77/72

77/72

77/72

77/72

1755 1975

A240CM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 1776 1996

A240DL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 1755 1975

A240DM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 1776 1996

A240YL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 1755 1975

A240YM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 1.0 16,000 1776 1996

A300CL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 128/121

128/121

128/121

128/121

128/121

128/121

1820 2040

A300CM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 1841 2061

A300DL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 1820 2040

A300DM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 1841 2061

A300YL BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 1820 2040

A300YM BELT

(3) 2" x 18" x 18"
(3) 2" x 18" x 24"

36.0 2.0 16,000 1841 2061

A300CL

A300CM

A300DL

A300DM

A300YL

A300YM

3-60-208-230
3-60-208-230

3-60-460
3-60-460
3-60-575
3-60-575

21.0/21.0

21.0/21.0

10.4

10.4

8.5

8.5

156
156

75
75
54
54

2.3

2.3

1.5

1.5

1.0

1.0

14.7

22.3

10.0

11.2

8.0

8.8

114/114
122/122

61
62
49
49

125/125
125/125

70
70
50
50

125/125
125/125

70
70
50
50

A180YM

7

MODEL

NUMBER

(-)LMB

A180CL 3-60-208-230 12.4/12.4 88 2.4 11.5 74/74 80/80 80/80

A180CM

3-60-208-230 12.4/12.4 88 2.4 14.7 77/77 80/80 80/80

A180DL

3-60-460 6.4/6.4 44 2.0 7.0 43/43 45/45 45/45

A180DM 3-60-460 6.4/6.4 44 2.0 10.0 46/46 50/50 50/50

A180YL

3-60-575 5.0/5.0 34 1.0 8.0 34/34 35/35 35/35

A180YM

A240CL

A240CM

A240DL

A240DM

A240YL

A240YM

A240CL

A240CM

A240DL

A240DM

A240YL

A240YM

3-60-575
3-60-208-230
3-60-208-230

3-60-460

3-60-460

3-60-575

3-60-575

5.0/5.0

17.5/17.5

17.5/17.5

9.0/9.0

9.0/9.0

7.1/7.1

7.1/7.1

34
123
123

62

62

50

50

1.0

2.4

2.4

2.0

2.0

1.0

1.0

8.0

14.7

22.3
10

11.2

8.0

8.8

34/34
99/99

107/107

57/57
58/58
43/43
43/43

35/35
110/110
110/110

60/60

60/60

45/45

45/45

35/35
110/110
110/110

60/60

60/60

45/45

50/50

ELECTRICAL

PHASE

FREQUENCY

(HZ)

VOLTAGE

(VOLTS)

COMPRESSOR

LOCKED

ROTOR

AMPERES

(LRA)

RATED LOAD

AMPERES

(RLA)

FULL LOAD

AMPERES

(FLA)

MINIMUM

CIRCUIT

AMPACITY

AMPERES

MIN.

AMPS

FAN

MTR

BLWR

MTR

MAX.

AMPS

FUSE OR HACR

CIRCUIT

BREAKER

TABLE C. ELECTRICAL DATA (-)LMB MODELS

MODEL

NUMBER

(-)LMB

PHYSICAL

DRIVE

TYPE

FILTER OUTDOOR COIL WEIGHT

RECOMMENDED

NO. AND SIZE

AREA

SQ. FT.

NO.

ROWS

CFM

R22 OZ.

SYSTEMS

1,2/3,4

NET

LBS.

SHIPPING

LBS.

TABLE D. PHYSICAL DATA (-)LMB MODELS

A180CL

BELT

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

(3) 2 x 18.0 x 18.0
(3) 2 x 18.0 x 24.0

36 1.00 16000 82/72

82/72

82/72

82/72

82/72

82/72

117/107

117/107

117/107

117/107

117/107

117/107

1677 1897

A180CM BELT 36 1.00 16000 1707

1927

A180DL BELT 36 1.00 16000

1677 1897

A180DM BELT 36 1.00 16000 1707

1927

A180YL BELT 36 1.00 16000

1677 1897

BELT

BELT

BELT

BELT

BELT

BELT

BELT

36

36

36

36

36

36

36

1.00

2.00

2.00

2.00

2.00

2.00

2.00

16000

16000

16000

16000

16000

16000

16000

1707

1755

1776

1755

1776

1755

1776

1927

1975

1996

1975

1996

1975

1996

8

V. INSTALLATION

A. GENERAL

1. PRE-INSTALLATION CHECK-POINTS
Before attempting any installation, the following points

should be carefully considered:
a. Structural strength of supporting members.

(rooftop installation)
b. Clearances and provision for servicing.
c. Power supply and wiring.
d. Air duct connections.
e. Drain facilities and connections.
f. Location for minimum noise.

2. LOCATION
These units are designed for outdoor installations. They

can be mounted on a slab or rooftop. They are not to be
installed within any part of a structure such as an attic,
crawl space, closet, or any other place where condenser
air flow is restricted or other than outdoor ambient condi­tions prevail. Since the application of the units is of the
outdoor type, it is important to consult your local code
authorities at the time the first installation is made.

B. OUTSIDE SLAB INSTALLATION (Typical outdoor slab

installations are shown in Figures 9 and 10.)

1. Select a location where external water drainage cannot
collect around the unit.

2. Provide a level concrete slab extending 3" beyond all
four sides of the unit. The slab should be sufficient
above grade to prevent ground water from entering the
unit. IMPORTANT: To prevent transmission of noise or

vibration, slab should not be connected to building struc­ture.

3. The location of the unit should be such as to provide
proper access for inspection and servicing.

4. Locate unit where operating sounds will not disturb
owner or neighbors.

5. Locate unit so roof runoff water does not pour directly on
the unit. Provide gutter or other shielding at roof level.
Do not locate unit in an area where excessive snow drift­ing may occur or accumulate.

C. CLEARANCES

The following minimum clearances must be observed for
proper unit performance and serviceability.

1. Provide 48" minimum clearance at the front of the unit.
Provide 18" minimum clearance at all other sides of the
unit.

2. Provide 60" minimum clearance between top of unit and
maximum 3 foot overhang.

3. Unit is design certified for application on combustible
flooring with 0" minimum clearance.

4. See Figure 9 for illustration of minimum installation-ser­vice clearances.

FIGURE 9

FIGURE 10

PACKAGED AIR CONDITIONER

OUTSIDE SLAB INSTALLATION, BASEMENT OR

CRAWL SPACE DISTRIBUTION SYSTEM

PACKAGED AIR CONDITIONER

OUTSIDE SLAB INSTALLATION, CLOSET DISTRIBUTION

SYSTEM. SLAB FLOOR CONSTRUCTION

A0886-22

A0886-23

9

D. ROOFTOP INSTALLATION

1. Before locating the unit on the roof, make sure that the
strength of the roof and beams is adequate at that point
to support the weight involved. This is very important
and user’s responsibility.

2. For rigging and roofcurb details, see Figures 11 and 12.
Use field-furnished spreaders.

3. For roofcurb assembly, see Roofcurb Installation Instruc­tions.

4. If the roofcurb is not used, provisions for disposing of
condensate water runoff must be provided.

5. The unit should be placed on a solid and level roofcurb
or platform of adequate strength. See Figure 13.

6. The location of the unit on the roof should be such as to
provide proper access for inspection and servicing.

IMPORTANT: If unit will not be put into service immediately,
cover supply and return openings to prevent excessive con­densation.

FIGURE 12

FIGURE 11

PACKAGED AIR CONDITIONER

ROOFCURB INSTALLATION

A0886-12

A0888-02

A0888-02

PACKAGED AIR CONDITIONER

RIGGING FOR LIFTING

10

VI. DUCTWORK

Ductwork should be fabricated by the installing contractor in
accordance with local codes and NFPA90A. Industry manuals
may be used as a guide when sizing and designing the duct
system - contact Air Conditioning Contractors of America, 1513
16th St. N.W., Washington, D.C. 20036.

DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT
RETURN DUCTWORK TO ANY OTHER HEAT PRODUCING
DEVICE SUCH AS A FIREPLACE INSERT, STOVE, ETC.
UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN
FIRE, CARBON MONOXIDE POISONING, EXPLOSION,
PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR
DEATH.

The unit should be placed as close to the space to be air con­ditioned as possible allowing clearance dimensions as indicat­ed. Ducts should be run as directly as possible to supply and
return outlets. Use of non-flammable waterproof flexible con­nectors on both supply and return connections at the unit to
reduce noise transmission is recommended.

It is preferable to install the unit on the roof of the structure if
the registers or diffusers are located on the wall or in the ceil­ing. A slab installation could be considered when the registers
are low on a wall or in the floor.

On ductwork exposed to outside air conditions of temperature
and humidity, use a minimum of 2" of insulation and a vapor
barrier. Distribution system in attic, furred space or crawl space
should be insulated with at least 2" of insulation with vapor bar-

rier. One-half to 1" thickness of insulation is usually sufficient
for ductwork inside the air conditioned space.

Balancing dampers should be provided for each branch duct in
the supply system. Ductwork should be properly supported
from the structure.

When installing ductwork, consider the following items:

1. Noncombustible flexible connectors should be used
between ductwork and unit to reduce noise and vibration
transmission into the ductwork.

2. When auxiliary heaters are installed, use noncombustible
flexible connectors and clearance to combustible material
of 0" for the first 3 feet of discharge duct. Clearance to unit
top and side is 0".

VII. FILTERS

This unit is provided with 3 - 18" x 18" x 2" and 3 - 18" x 24" x
2" disposable filters. When replacing filters, ensure they are
inserted fully to the back to prevent bypass. See Figure 8.

Recommended supplier of this filter is Glassfloss Industries, Inc. or
AAF International

215 Central Avenue
P.O. Box 35690
Louisville, KY 40232
Phone: [phone]
Part #: 54-42541-01 (18” x 18” x 2”)

Part #: 54-42541-03 (18” x 24” x 2”)

VIII. COVER PANEL INSTALLATION/

VIII. CONVERSION PROCEDURE

DOWNFLOW TO HORIZONTAL

1. Remove the screws and covers from the outside of the
supply and return sections. Also remove and discard cover
plate. See Figure 3.

2. Install the covers over the bottom supply and return open­ings, painted side up, inserting the leading flange under

the bracket provided. Place the back flange to top of
the front bracket provided. See Figure 14.

3. Secure the return and supply cover to front bracket with
two (2) screws.

FIGURE 13

WARNING

!

PACKAGED AIR CONDITIONER

FLAT ROOFTOP INSTALLATION, ATTIC OR DROP CEILING

DISTRIBUTION SYSTEM. MOUNTED ON

ROOFCURB. CURB MUST BE LEVEL

FIGURE 14. COVER GASKET DETAIL

A0886-24

A0886-31

A0886-30

11

IX. CONDENSATE DRAIN

The condensate drain connection of the evaporator is 1" nomi­nal male pipe thread. IMPORTANT: Install a condensate trap
to ensure proper condensate drainage. See Figure 15.

X. ELECTRICAL WIRING

Field wiring must comply with the National Electrical Code* and
local ordinances that may apply.

*C.E.C. in Canada

A. POWER WIRING

1. This unit incorporates single-point electrical connections
for the unit and electric heat accessory.

2. It is important that proper electrical power is available to
the unit. Voltage should not vary more than 10% from the
values marked on the unit rating plate. Phase voltages
must be balanced within 3%.

3. Install a branch circuit disconnect within sight of the unit.
See Figure 16. Use the unit rating plate or Tables A, B, C,
and D to determine the required size.

4. The branch circuit wire must be sized in accordance with
the National Electrical Code (C.E.C. in Canada) and local
ordinances that may apply using the minimum circuit
ampacity found on the unit rating plate.

5. Field-installed power wiring must be run through ground­ed rain-tight conduit attached to the unit power entry
panel and connected as follows:

UNITS WITHOUT ELECTRIC HEAT - Connect power
wiring to the power terminal block located on the left side
of the electric heat compartment. Connect the ground
wire to the adjacent ground lug.

UNITS WITH FACTORY INSTALLED ELECTRIC HEAT -

Connect power wiring to the power terminal block located
on the electric heater kit. Connect the ground wire to the
adjacent ground lug. DO NOT connect aluminum wiring
directly to the electric heater terminal block. Wiring to the
unit contactors is factory-connected.

6. For field installation of an electric heater kit, follow the
instructions below. Refer to the information supplied with
the kit.

a. Removing screws as required, open heater access

door and detach adjacent power entry panel.

b. Remove unit contactor wires (1L1, 1L2, 1L3) from unit

terminal block on the left side of the electric heat com­partment. Remove and discard the terminal block and
the adjacent ground lug.

c. Remove the heater kit block-off panel and install the

heater kit in its place using the screws previously
removed.

d. Connect the unit contactor wires (1L1, 1L2, 1L3) to the

compressor fuse block on the heater kit.

e. Re-install the power entry panel & run conduit and the

proper size field wiring through the opening in the
panel.

f. Connect field wiring to the power terminal block located

on the electric heater kit. Connect ground wire to the
adjacent ground lug.

g. Connect heater kit control plug to the receptacle on the

control wiring harness.

h. Close heater access door and secure with screws pre-

viously removed.

B. CONTROL WIRING (Class II)

1. Low voltage wiring should not be run in conduit with
power wiring.

2. Control wiring is routed through the 7/8" hole in the unit
side panel. See Figure 7. Use a minimum #18 AWG ther­mostat wire. For wire lengths exceeding 50', use #16
AWG thermostat wire. Connect the control wiring to the
low voltage terminal block located below the unit control
box.

3. It is necessary that only approved thermostats be used.
Please contact your distributor for part number informa­tion. See Table for a list of recommended thermostats.

4. Figure 18 shows representative low voltage connection
diagrams. Read your thermostat installation instructions
for any special requirements for your specific thermostat.

NOTE — Units installed in Canada require that an out­door thermostat (30,000 min. cycles of endurance) be
installed and be wired with C.E.C. Class I wiring.

D. INTERNAL WIRING

1. A diagram of the internal wiring of this unit is located on
the inside of the electrical access panel. If any of the origi­nal wire, as supplied with the appliance must be replaced,
the wire gauge and insulation must be the same as origi­nal wiring.

FIGURE 15. CONDENSATE DRAIN

FIGURE 16. BRANCH CIRCUIT DISCONNECT

LOCATION

A0886-24

Recommended Thermostats for 15, 20, & 25 Ton Package Air Conditioner

Universal

Type Stages Manufacturer Model Parts

Part Number

Manual 3 heat/2 cool Honeywell T874D1959 41-21444-01

Changeover w/Q674B1075 41-21441-01

sub-base
Programmable 3 heat/2 cool White-Rodgers 1F91-7 41-21015-04
Programmable 3 heat/2 cool Robertshaw 09710 41-23971-01

12

E. GROUNDING

THE UNIT MUST BE PERMANENTLY GROUNDED. A
GROUNDING LUG IS PROVIDED IN THE ELECTRIC
HEAT ACCESS AREA FOR A GROUND WIRE. FAILURE
TO GROUND THIS UNIT CAN RESULT IN FIRE OR
ELECTRICAL SHOCK CAUSING PROPERTY DAMAGE,
SEVERE PERSONAL INJURY OR DEATH.

GROUNDING MAY ALSO BE ACCOMPLISHED BY
GROUNDING THE POWER LINE CONDUIT TO THE
UNIT. MAKE SURE THE CONDUIT NUT LOCKING TEETH
HAVE PIERCED THE INSULATING PAINT FILM OF THE
SIDE PANEL.

F. THERMOSTAT

The thermostat should be mounted on an inside wall about
five feet above the floor in a location where it will not be
affected by unconditioned air, sun, or drafts from open doors

or other sources. READ installation instructions in heat
pump thermostat package CAREFULLY because each has
some different wiring requirements.

XI. INDOOR AIR FLOW DATA

Belt-drive blower models have motor sheaves set for proper
CFM at a typical external static. See Tables E and F for blower
performance.

XII. CRANKCASE HEAT (OPTIONAL)

Crankcase heat is not required on scroll type compressors, but
may be desirable under certain conditions. Wires have been
provided for the addition of crankcase heaters (see wiring dia­grams).

WARNING

!

FIGURE 18

A0886-34

FIGURE 19

A0886-32

FIGURE 17. THERMOSTAT CONNECTIONS DIAGRAMS

A0823-01

13

E.S.P. - Inches of Water

15 TON PACKAGE UNIT - 60 Hz

—
—
—

—
637
653
669
685
701
717
733
749
765

—
—
—

—
1494
1738
1981
2224
2468
2711
2955
3198
3442

AIR-FLOW PERFORMANCE – 15 TON MODELS

TABLE E

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3

1.4

1.5 1.6 1.7 1.8 1.9 2.0

STD

CFM

RPM RPM

WATTS WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM

WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM RPM RPM RPM

WATTS WATTS WATTS WATTS

4800
5000
5200
5400
5600
5800
6000
6200
6400
6600
6800
7000
7200

—
—

—
640
656
672
688
704
720
736
752
768
784

—
—

—
1394
1638
1881
2125
2368
2611
2855
3098
3342
3585

—

—
644
660
676
692
708
724
740
756
772
788
804

—

—
1294
1538
1781
2025
2268
2512
2755
2998
3242
3485
3729

631
647
663
679
695
711
727
743
759
775
791
807
877

951
1194
1438
1681
1925
2168
2412
2655
2899
3142
3385
3629
3821

650
666
682
698
714
731
747
763
779
795
811
881
890

1095
1338
1581
1825
2068
2312
2555
2799
3042
3286
3529
3695
4000

670
686
702
718
734
750
766
782
798
814
885
894
903

1238
1482
1725
1968
2212
2455
2699
2942
3186
3429
3569
3874
4179

689
705
721
737
753
769
785
801
817
889
898
907
916

1382
1625
1869
2112
2355
2599
2842
3086
3329
3442
3748
4053
4358

709
725
741
757
773
789
805
821
893
920
911
902
929

1525
1769
2012
2256
2499
2742
2986
3229
3316
3622
3927
4232
4538

728
744
760
776
792
808
888
897
906
915
924
933
942

1669
1912
2156
2399
2643
2886
2885
3190
3495
3801
4106
4411
4717

747
764
780
796
812
892
901
910
919
928
937
946
955

1812
2056
2299
2543
2786
2759
3064
3369
3675
3980
4285
4591
4896

767
783
799
815
896
905
914
923
932
941
950
959
968

1956
2199
2443
2686
2632
2938
3243
3548
3854
4159
4464
4770
5075

786
802
818
900
909
918
927
936
945
954
963
972

—

2100
2343
2586
2506
2812
3117
3422
3727
4033
4338
4643
4949

—

806
822
904
913
922
931
940
949
958
967
976

—
—

2243
2487
2380
2685
2991
3296
3601
3907
4212
4517
4823

—
—

899
908
917
926
935
944
953
962
971
980
989

—
—

1949
2254
2559
2864
3170
3475
3780
4086
4391
4696
5002

—
—

912
921
929
936
947
956
965
974
983
992

—
—
—

2128
2433
2738
3044
3349
3654
3960
4265
4570
4876

—
—
—

924
933
942
951
960
969
978
987
996

1005

—
—
—

2307
2612
2917
3223
3528
3833
4139
4444
4749
5055

—
—
—

937
946
955
964
973
982

991
1000
1009

—
—
—
—

950
959
968
977
986

995
1004
1013

—
—
—
—
—

963
972
981
990

999
1008
1017

—
—
—
—
—
—

976
985

994
1003
1012
1021

—
—
—
—
—
—
—

2486
2791
3097
3402
3707
4012
4318
4623
4928

—
—
—
—

2665
2970
3276
3581
3886
4192
4497
4802

—
—
—
—
—

2844
3149
3455
3760
4065
4371
4876

—
—
—
—
—
—

3023
3329
3634
3939
4245
4550

—
—
—
—
—
—
—

DRIVE PACKAGE L

3.0

BK-90

1VP-44

123 456

823 787 750 710 670 629

MOTOR HP
BLOWER SHEAVE
MOTOR SHEAVE
TURNS OPEN
RPM

NOTES: 1. Factory sheave settings shown in bold type.

2. Do not set sheave below minimum turns open shown.

3. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.

4. Drive data shown is for horizontal airflow with dry coil. Add component resistance
to duct resistance to determine total E.S.P.

DRIVE PACKAGE M

5

BK-72

1VP-44

1.5 2 3

4

56

1022 1017 1006 933 860 786

MOTOR HP
BLOWER SHEAVE
MOTOR SHEAVE
TURNS OPEN
RPM

COMPONENT RESISTANCE TABLE
CFM WET COIL DOWNFLOW
4800 0.020 0.010

5200 0.040 0.020
5600 0.060 0.030
6000 0.080 0.040
6400 0.100 0.050
6800 0.125 0.060
7200 0.150 0.070

TABLE F. AIR-FLOW DATA 20 & 25 TON MODELS

14

701
717
733
749
765
781
797
813
829
845
861
877
911
920
929
938
947

2468
2711
2955
3198
3442
3685
3929
4172
4415
4659
4902
5146
5726
6032
6337
6642
6948

E.S.P. - Inches of Water

20 TON PACKAGE UNIT - 60 Hz

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3

1.4

1.5 1.6 1.7 1.8 1.9 2.0

STD

CFM

RPM RPM

WATTS WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM

WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM

WATTS

RPM RPM

WATTS WATTS

RPM RPM RPM RPM

WATTS WATTS WATTS WATTS

6400
6600
6800
7000
7200
7400
7600
7800
8000
8200
8400
8600
8800
9000
9200
9400
9600

720
736
752
768
784
801
817
833
849
865
881
915
924
933
942
951
960

2611
2855
3098
3342
3585
3829
4072
4316
4559
4802
5046
5600
5905
6211
6516
6821
7127

740
756
772
788
804
820
836
852
868
910
919
928
936
945
954
963
972

2755
2998
3242
3485
3729
3972
4216
4459
4703
5169
5474
5779
6084
6390
6695
7000
7306

759
775
791
807
823
839
855
871
913
922
931
940
949
958
967
976
985

2899
3142
3385
3629
3872
4116
4359
4603
5042
5348
5653
5958
6264
6569
6874
7180

—

779
795
811
827
843
859
875
917
926
935
944
953
962
971
980
989

—

3042
3286
3529
3772
4016
4259
4503
4916
5221
5527
5832
6137
6443
6748
7053
7359

—

798
814
830
846
862
878
921
930
939
948
957
966
975
984
993

—
—

3186
3429
3673
3916
4160
4403
4790
5095
5401
5706
6011
6317
6622
6927
7233

—
—

817
834
850
866
882
925
934
943
952
961
970
979
988
997

1006

—
—

3329
3573
3816
4060
4303
4664
4696
5274
5580
5885
6190
6496
6801
7106
7412

—
—

837
853
869
920
929
938
947
956
965
974
983

992
1001
1010

—
—
—

3473
3716
3960
4232
4538
4843
5148
5454
5759
6064
6369
6675
6980
7285

—
—
—

856
872
924
933
942
951
960
969
978
987

996
1005
1014

—
—
—
—

3616
3860
4106
4411
4717
5022
5327
5633
5938
6243
6549
6854
7159

—
—
—
—

876
928
937
946
955
964
973
982

991
1000
1009
1018
1027

—
—
—
—

3760
3980
4285
4591
4896
5201
5506
5812
6117
6422
6728
7033
7338

—
—
—
—

932
941
950
959
968
977
986

995
1004
1013
1022
1031

—
—
—
—
—

3854
4159
4464
4770
5075
5380
5686
5991
6296
6602
6907
7212

—
—
—
—
—

945
954
963
972
981
990

999
1008
1017
1026
1035
1044

—
—
—
—
—

4033
4338
4643
4949
5254
5559
5865
6170
6475
6781
7086
7391

—
—
—
—
—

958
967
976
985

994
1003
1012
1021
1030
1039
1048

—
—
—
—
—
—

4212
4517
4823
5128
5433
5739
6044
6349
6655
6960
7265

—
—
—
—
—
—

971
980
989

998
1007
1015
1024
1033
1042
1051

—
—
—
—
—
—
—

4391
4696
5002
5307
5612
5918
6223
6528
6834
7139

—
—
—
—
—
—
—

983

992
1001
1010
1019
1028
1037
1046
1055
1064

—
—
—
—
—
—
—

4570
4876
5181
5486
5791
6097
6402
6707
7013
7318

—
—
—
—
—
—
—

996
1005
1014
1023
1032
1041
1050
1059
1068

—
—
—
—
—
—
—
—

4749
5055
5360
5665
5971
6276
6581
6887
7192

—
—
—
—
—
—
—
—

1009
1018
1027
1036
1045
1054
1063
1072
1081

—
—
—
—
—
—
—
—

1022
1031
1040
1049
1058
1067
1076
1085

—
—
—
—
—
—
—
—
—

1035
1044
1053
1062
1071
1080
1089
1098

—
—
—
—
—
—
—
—
—

1048
1057
1066
1075
1084
1093
1102

—
—
—
—
—
—
—
—
—
—

4928
5234
5539
5844
6150
6455
6760
7066
7371

—
—
—
—
—
—
—
—

5108
5413
5718
6024
6329
6634
6940
7245

—
—
—
—
—
—
—
—
—

5287
5592
5897
6203
6508
6813
7119
7424

—
—
—
—
—
—
—
—
—

5466
5771
6076
6382
6687
6992
7298

—
—
—
—
—
—
—
—
—
—

DRIVE PACKAGE L

5.0

BK-95

1VP-50

1 23456

882 846 810 773 736 700

MOTOR HP
BLOWER SHEAVE
MOTOR SHEAVE
TURNS OPEN
RPM

NOTES: 1. Factory sheave settings shown in bold type.

2. Do not set sheave below minimum turns open shown.

3. Re-adjustment of sheave required to achieve rated airflow at ARI minimum E.S.P.

4. Drive data shown is for horizontal airflow with dry coil. Add component resistance
to duct resistance to determine total E.S.P.

DRIVE PACKAGE M

7.5

BK-90

1VP-60

123

4

56

1102 1075 1047 1006 964 922

MOTOR HP
BLOWER SHEAVE
MOTOR SHEAVE
TURNS OPEN
RPM

COMPONENT RESISTANCE TABLE
CFM WET COIL DOWNFLOW
6400 0.100 0.030

6800 0.125 0.043
7200 0.150 0.055
7600 0.175 0.068
8000 0.200 0.080
8400 0.225 0.093
8800 0.250 0.105
9200 0.275 0.118
9600 0.300 0.130

15

XIII. PRE-START CHECK

1. Is unit properly located and slightly slanted toward indoor
condensate drain?

2. Is ductwork insulated, weatherproofed, with proper spacing
to combustible materials?

3. Is air free to travel to and from outdoor coil? (See Figure

5.)

4. Is the wiring correct, tight, and according to unit wiring dia­gram?

5. Is unit grounded?

6. Are field supplied air filters in place and clean?

7. Do the outdoor fan and indoor blower turn freely without
rubbing, and are they tight on the motor shafts?

XIV. STARTUP

1. Turn thermostat to “OFF,” turn “on” power supply at discon­nect switch.

2. Turn temperature setting as high as it will go.

3. Turn fan switch to “ON.”

4. Indoor blower should run. Be sure it is running in the right
direction.

5. Turn fan switch to “AUTO.” Turn system switch to “COOL”
and turn temperature setting below room temperature. Unit
should run in cooling mode.

6. Is outdoor fan operating correctly in the right direction?

7. Is compressor running correctly.
Record the following after the unit has run some time.
A. Operating Mode _______________________________
B. Discharge Pressures (High) __________________PSIG
C.Vapor Pressure at Compressors (Low) _________PSIG

D.Vapor Line Temperature at Compressors °F.

E. Indoor Dry Bulb______________________________°F.
F. Indoor Wet Bulb _____________________________°F.
G.Outdoor Dry Bulb ____________________________°F.
H.Outdoor Wet Bulb____________________________°F.
I. Voltage at Contactor ________________________Volts
J. Current at Contactors_______________________Amps
K. Model Number_________________________________
L. Serial Number _________________________________
M.Location______________________________________
N.Owner _______________________________________
O.Date_________________________________________

8. Turn thermostat system switch to “HEAT.” Unit compres­sors should stop. Raise temperature setting to above room
temperature. Unit should run in heating mode and auxiliary
heaters, if installed, should come on.

9. Check the refrigerant charge using the instructions located
on unit charging chart. Replace service port caps. Service
port cores are for system access only and will leak if not
tightly capped.

10. Adjust discharge air grilles and balance system.

11. Check ducts for condensation and air leaks.

12. Check unit for tubing and sheet metal rattles.

13. Instruct the owner on operation and maintenance.

14. Leave “INSTALLATION” and ”USE AND CARE“ instruc­tions with owner

XV. OPERATION

COOLING MODE

With thermostat in the cool mode, fan auto and the room tem­perature higher than the thermostat setting:

A. Indoor blower contactor is energized through thermostat

contact (G).

B. Compressor contactors are energized through thermostat

contacts (Y1) & (Y2) and high pressure controls.

C. Economizer enthalpy control (if installed) controls operation

of first-stage cooling and positions fresh air damper to main­tain mixed air temperature. Second-stage cooling operates
normally as required by second stage of thermostats.

D. The system will continue in cooling operation as long as all

safety controls are closed, until the thermostat is satisfied.

HEATING MODE

With thermostat in the heat mode, fan auto and the room tem­perature lower than the thermostat setting the indoor blower
contactor is energized through thermostat contact (G).

XVI. AUXILIARY HEAT

ONLY ELECTRIC HEATER KITS SUPPLIED BY THIS MAN­UFACTURER AS DESCRIBED IN THIS PUBLICATION
HAVE BEEN DESIGNED, TESTED, AND EVALUATED BY A
NATIONALLY RECOGNIZED SAFETY TESTING AGENCY
FOR USE WITH THIS UNIT. USE OF ANY OTHER MANU­FACTURED ELECTRIC HEATERS INSTALLED WITHIN
THIS UNIT MAY CAUSE HAZARDOUS CONDITIONS
RESULTING IN PROPERTY DAMAGE, FIRE, BODILY
INJURY OR DEATH.

In the heating mode, the thermostat will energize one or more
supplementary resistance heaters.

REPLACEMENT PARTS

Contact your local distributor for a complete parts list.

CHARGE INFORMATION

Refer to the appropriate charge chart on the unit, or in this
booklet.

TROUBLESHOOTING

Refer to the troubleshooting chart included in this manual.

WIRING DIAGRAMS

Refer to the appropriate wiring diagram included in this manual.

WARNING

!

VII. HEATER KIT CHARACTERISTICS
TABLE G. AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION

(15, 20 & 25 TON MODELS)

MAX. FUSE

UNIT OR CKT. BKR.

MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR.

NUMBER MODEL NO. HEATER KW FLA AMPACITY MUST BE

(-)LKB- RXJJ- HACR TYPE

FOR USA)

NONE* — — 74/74 80/80
CD20C 14.4/19.2 40.0/46.2 74/74 80/80

A180CL CD40C 28.8/38.4 79.9/92.4 115/130 125/150

CD60C 43.2/57.6 119.9/138.6 165/188 175/200
CD75C 54.0/72.0 149.9/173.3 202/231 225/250

NONE* — — 43 45
CD20D 19.2 23.1 43 45

A180DL CD40D 38.4 46.2 67 70

CD60D 57.6 69.3 96 100
CD75D 72.0 86.6 117 125

NONE* — — 34 35
CD20Y 19.2 18.5 34 35

A180YL CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 77/77 80/80
CD20C 14.4/19.2 40.0/46.2 77/77 80/80

A180CM CD40C 28.8/38.4 79.9/92.4 119/134 125/150

CD60C 43.2/57.6 119.9/138.6 169/192 175/200
CD75C 54.0/72.0 149.9/173.2 206/235 225/250

NONE* — — 46 50
CD20D 19.2 23.1 46 50

A180DM CD40D 38.4 46.2 71 80

CD60D 57.6 69.3 100 100
CD75D 72.0 86.6 121 125

NONE* — — 34 35
CD20Y 19.2 18.5 34 35

A180YM CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 100/100 110/110
CD20C 14.4/19.2 40.0/46.2 100/100 110/110

A240CL CD40C 28.8/38.4 79.9/92.4 119/134 125/150

CD60C 43.2/57.6 119.9/138.6 169/192 175/200
CD75C 54.0/72.0 149.9/173.2 206/235 225/250

NONE* — — 58 60
CD20D 19.2 23.1 58 60

A240DL CD40D 38.4 46.2 71 80

CD60D 57.6 69.3 100 100
CD75D 72.0 86.6 121 125

NONE* — — 45 50
CD20Y 19.2 18.5 45 50

A240YL CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 108/108 125/125
CD20C 14.4/19.2 40.0/46.2 108/108 125/125

A240CM CD40C 28.8/38.4 79.9/92.4 128/144 150/150

CD60C 43.2/57.6 119.9/138.6 178/202 200/225
CD75C 54.0/72.0 149.9/173.2 216/245 225/250

NONE* — — 59 60
CD20D 19.2 23.1 59 60

A240DM CD40D 38.4 46.2 72 80

CD60D 57.6 69.3 101 110
CD75D 72.0 86.6 123 125

NONE* — — 46 50
CD20Y 19.2 18.5 46 50

A240YM CD40Y 38.4 37.0 58 60

CE60Y 57.6 55.4 81 90
CD75Y 72.0 69.3 98 100

16

17

VII. HEATER KIT CHARACTERISTICS
TABLE G (CONTINUED). AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION

TABLE G (CONTINUED). (15, 20 & 25 TON MODELS)

MAX. FUSE

UNIT OR CKT. BKR.

MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR.

NUMBER MODEL NO. HEATER KW FLA AMPACITY MUST BE

(-)LKB- RXJJ- HACR TYPE

FOR USA)

NONE* — — 114/114 125/125
CD20C 14.4/19.2 40.0/46.2 114/114 125/125

A300CL CD40C 28.8/38.4 79.9/92.4 119/134 125/150

CD60C 43.2/57.6 119.9/138.6 169/192 175/200
CD75C 54.0/72.0 149.9/173.2 206/235 225/250

NONE* — — 61 70
CD20D 19.2 23.1 61 70

A300DL CD40D 38.4 46.2 71 80

CD60D 57.6 69.3 100 100
CD75D 72.0 86.6 121 125

NONE* — — 43 50
CD20Y 19.2 18.5 43 50

A300YL CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 122/122 125/125
CD20C 14.4/19.2 40.0/46.2 122/122 125/125

A300CM CD40C 28.8/38.4 79.9/92.4 128/144 125/150

CD60C 43.2/57.6 119.9/138.6 178/202 200/225
CD75C 54.0/72.0 149.9/173.2 216/245 225/250

NONE* — — 62 70
CD20D 19.2 23.1 62 70

A300DM CD40D 38.4 46.2 72 80

CD60D 57.6 69.3 101 110
CD75D 72.0 86.6 123 125

NONE* — — 43 50
CD20Y 19.2 18.5 43 50

A300YM CD40Y 38.4 37.0 58 60

CE60Y 57.6 55.4 81 90
CD75Y 72.0 69.3 98 100

18

VII. HEATER KIT CHARACTERISTICS
TABLE G (CONTINUED). AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION

TABLE G (CONTINUED). (15, 20 & 25 TON MODELS)

MAX. FUSE

UNIT OR CKT. BKR.

MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR.

NUMBER MODEL NO. HEATER KW FLA AMPACITY MUST BE

(-)LMB- RXJJ- HACR TYPE

FOR USA)

NONE* — — 74/74 80/80
CD20C 14.4/19.2 40.0/46.2 74/74 80/90

A180CL CD40C 28.8/38.4 79.9/92.4 115/130 125/150

CD60C 43.2/57.6 119.9/138.6 165/183 175/200
CD75C 54.0/72.0 149.9/173.3 202/231 225/250

NONE* — — 43 45
CD20D 19.2 23.1 43 45

A180DL CD40D 38.4 46.2 67 70

CD60D 57.6 69.3 96 100
CD75D 72.0 86.6 117 125

NONE* — — 34 35
CD20Y 19.2 18.5 34 35

A180YL CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 77/77 80/80
CD20C 14.4/19.2 40.0/46.2 77/77 80/80

A180CM CD40C 28.8/38.4 79.9/92.4 119/134 125/150

CD60C 43.2/57.6 119.9/138.6 169/192 175/200
CD75C 54.0/72.0 149.9/173.2 206/235 225/250

NONE* — — 46 50
CD20D 19.2 23.1 46 50

A180DM CD40D 38.4 46.2 71 80

CD60D 57.6 69.3 100 110
CD75D 72.0 86.6 121 125

NONE* — — 34 35
CD20Y 19.2 18.5 34 35

A180YM CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 99/99 110/110
CD20C 14.4/19.2 40.0/46.2 99/99 110/110

A240CL CD40C 28.8/38.4 79.9/92.4 119/134 125/150

CD60C 43.2/57.6 119.9/138.6 169/192 175/200
CD75C 54.0/72.0 149.9/173.2 206/235 225/250

NONE* — — 57 60
CD20D 19.2 23.1 57 60

A240DL CD40D 38.4 46.2 71 80

CD60D 57.6 69.3 100 110
CD75D 72.0 86.6 121 125

NONE* — — 43 50
CD20Y 19.2 18.5 43 50

A240YL CD40Y 38.4 37.0 57 60

CD60Y 57.6 55.4 80 80
CD75Y 72.0 69.3 97 100

NONE* — — 107/107 110/110
CD20C 14.4/19.2 40.0/46.2 107/107 110/110

A240CM CD40C 28.8/38.4 79.9/92.4 128/144 125/175

CD60C 43.2/57.6 119.9/138.6 178/202 200/225
CD75C 54.0/72.0 149.9/173.2 216/245 225/300

NONE* — — 58 60
CD20D 19.2 23.1 58 60

A240DM CD40D 38.4 46.2 72 80

CD60D 57.6 69.3 101 110
CD75D 72.0 86.6 123 125

NONE* — — 43 50
CD20Y 19.2 18.5 43 50

A240YM CD40Y 38.4 37.0 58 60

CE60Y 57.6 55.4 81 90
CD75Y 72.0 69.3 98 100

19

WARNING

!

TROUBLE SHOOTING CHART

DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY BREAK ONLY ONE SIDE. FAILURE
TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.

SYMPTOM POSSIBLE CAUSE REMEDY

Unit will not run • Power off or loose electrical connection • Check for correct voltage at compressor contactor in control

box

• Thermostat out of calibration-set too high • Reset

• Defective contactor • Check for 24 volts at contactor coil - replace if contacts are
open

• Blown fuses • Replace fuses

• Transformer defective • Check wiring-replace transformer

• High pressure control open (if provided) • Reset-also see high head pressure remedy-

• Interconnecting low voltage wiring damaged • Replace thermostat wiring

Condenser fan runs, compressor • Run capacitor defective (single phase only) • Replace

doesn’t • Loose connection • Check for correct voltage at compressor -

check & tighten all connections

• Compressor stuck, grounded or open motor winding • Wait at least 2 hours for overload to reset.

open internal overload. If still open, replace the compressor.

• Low voltage condition At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.

Insufficient cooling • Improperly sized unit • Recalculate load

• Improper airflow • Check - should be approximately 400 CFM per ton.

• Incorrect refrigerant charge • Charge per procedure attached to unit service panel.

• Air, non-condensibles or moisture in system • Recover refrigerant, evacuate & recharge, add filter drier

• Incorrect voltage • At compressor terminals, voltage must be within 10% of rating
plate volts when unit is operating.

Compressor short cycles • Incorrect voltage • At compressor terminals, voltage must be ± 10% of

nameplate marking when unit is operating.

• Defective overload protector • Replace - check for correct voltage

• Refrigerant undercharge • Add refrigerant

Registers sweat • Low evaporator airflow • Increase speed of blower or reduce restriction - replace air

filter

High head-low vapor pressures • Restriction in liquid line, expansion device or filter drier • Remove or replace defective component

• Flow check piston size too small • Change to correct size piston

• Incorrect capillary tubes • Change coil assembly

• TXV does not open • Replace TXV

High head-high or normal vapor • Dirty condenser coil • Clean coil

pressure - Cooling mode • Refrigerant overcharge • Correct system charge

• Condenser fan not running • Repair or replace

• Air or non-condensibles in system • Recover refrigerant, evacuate & recharge

High head-high or normal vapor • Low air flow - condenser coil • Check filters - correct to speed

pressure - Heating mode • Refrigerant overcharge • Correct system charge

• Air or non-condensibles in system • Recover refrigerant, evacuate & recharge

• Dirty condenser coil • Check filter - clean coil

Low head-high vapor pressures • Defective Compressor valves • Replace compressor

Low vapor - cool compressor - • Low evaporator airflow • Increase speed of blower or reduce restriction - replace air

iced evaporator coil filter

• Operating below 65°F outdoors • Add Low Ambient Kit

• Moisture in system • Recover refrigerant - evacuate & recharge - add filter drier

• TXV limiting refrigerant flow • Replace TXV

High vapor pressure • Excessive load • Recheck load calculation

• Defective compressor • Replace

Fluctuating head & vapor • TXV hunting • Check TXV bulb clamp - check air distribution on coil - replace

pressures TXV

• Air or non-condensibles in system • Recover refrigerant, evacuate & recharge

Gurgle or pulsing noise at • Air or non-condensibles in system • Recover refrigerant, evacuate & recharge

expansion device or liquid line

202122232425262728

Limited Warranty - Parts

SELF-CONTAINED AIR CONDITIONER

GENERAL: The manufacturer warrants ANY PART of this product against failure under normal use and service within the applicable periods specified below, in accordance

with the terms of this Warranty. Under this Warranty, the manufacturer will furnish a replacement part that will be warranted for only the unexpired portion of the original war­ranty.

EFFECTIVE DATE: The effective date of warranty coverage is the date of original installation, if properly documented, otherwise the date of manufacture, plus six (6) months.

WARRANTY PERIODS:

COMPRESSOR: If the motor-compressor fails within Five (5) years after the effective date, a replacement compressor will be furnished.
ANY OTHER PART: If any other part fails within One (1) year after the effective date, the manufacturer will furnish a replacement part.
THIS WARRANTY WILL NOT APPLY: a) to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed

instructions provided; b) to damage from abuse, accident, fire, flood and the like; c) to parts used in connection with normal maintenance, such as cleaning or replacing air fil­ters; d) to units which are not installed in the United States of America or Canada; e) to units which are not installed in accordance with applicable local codes, ordinances and
good trade practices; or f) to defects or damage caused by the use of any attachment, accessory or component not authorized by the manufacturer.

SHIPPING COSTS: You will be responsible for the cost of shipping warranty replacement parts from our factory to our distributor and from the distributor to the location of

your product. You also are responsible for any shipping cost of returning the failed part to the distributor and also for incidental costs incurred locally, including handling
charges. (If in Alaska, Hawaii or Canada, you also must pay the shipping cost of returning the failed part to the port of entry into the continental United States.)

SERVICE LABOR RESPONSIBILITY: This Warranty does not cover any labor expenses for service, nor for removing or reinstalling parts. All such expenses are your

responsibility unless a service labor agreement exists between you and your contractor.

HOW TO OBTAIN WARRANTY PERFORMANCE:

You must promptly report any failure covered by this Warranty to the installing contractor or the distributor.
Normally, the installing contractor from whom the unit was purchased will be able to take the necessary corrective action by obtaining through his air conditioning distributor
any replacement parts. If the contractor is not available, simply contact any other local contractor handling the manufacturer’s air conditioning products. The name and loca­tion of a local contractor can usually be found in your telephone directory or by contacting an air conditioning distributor which carries the manufacturer’s air conditioning prod­ucts. If necessary, the following office can advise you of the nearest distributor.

P.O. Box 17010 (FOR CALIFORNIA ONLY)
5600 Old Greenwood Road 14300 Alondra Boulevard
Fort Smith, Arkansas 72917-7010 LaMirada, California 90638
501-646-4311 310-860-7761

HOWEVER, ANY REPLACEMENTS ARE MADE SUBJECT TO VALIDATION BY THE MANUFACTURER OF IN-WARRANTY COVERAGE. An item to be replaced must be
made available in exchange for the replacement.

MISCELLANEOUS:

No one is authorized to make any warranties on behalf of THE MANUFACTURER. ANY IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE APPLICABLE WARRANTY PERIODS SPECIFIED ABOVE. THE MANUFACTURER’S
SOLE LIABILITY WITH RESPECT TO DEFECTIVE PARTS SHALL BE AS SET FORTH IN THIS WARRANTY, AND ANY CLAIMS FOR INCIDENTAL OR CONSEQUEN­TIAL DAMAGES ARE EXPRESSLY EXCLUDED. Some states do not allow limitations on how long an implied warranty lasts, or for the exclusion of incidental or consequen­tial damages, so the above limitation or exclusion 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.
The manufacturer suggests that you immediately complete the information on the reverse side and retain this Warranty Certificate in the event warranty service is needed and

that you keep proper documentation of the date of installation (e.g., a dated receipt).

Please become familiar with all the provisions of the Limited Warranty. We suggest that your installing contractor either complete the
data listed below, or furnish you with the necessary information so that you can enter this data below. If necessary, you may obtain the
model and serial numbers from the data plate which is affixed to the side of the outdoor unit.

Name of Owner Name of Installing Contractor

Address Address

City/State/Zip Code City/State/Zip Code

Model Number Serial Number

Date of Original Installation

KEEP THIS WARRANTY FOR YOUR RECORDS.

DO NOT MAIL.

RHEEM

AIR CONDITIONING
DIVISION

A Division of Rheem Manufacturing Company
P.O. Box 17010, 5600 Old Greenwood Road, Fort Smith, Arkansas 72917-7010