Rheem RLKN-B073 Installation Manual

WARNING

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.

INSTALLATION INSTRUCTIONS

ACCREDITED

ISO 9001:2008

FOR PACKAGE AIR CONDITIONERS FEATURING INDUSTRY STANDARD R410A REFRIGERANT

RLKN-B073 (6 TON) SERIES

[ ] INDICATES METRIC CONVERSIONS

92-23577-158-00

I. TABLE OF CONTENTS

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

II. Introduction...........................................................................................3

III. Checking Product Received .................................................................3

IV. Equipment Protection ...........................................................................3

V. Specifications .......................................................................................3

A. General............................................................................................3

B. Major Components ..........................................................................4

C. R-410A Refrigerant..........................................................................4

1. Specification of R-410A...............................................................4

2. Quick Reference Guide for R-410A ............................................4

3. Evaporator Coil / TXV..................................................................4

4. Tools Required For Installing & Servicing

R-410A Models........................................................................4

Unit Dimensions ..............................................................................5

VI. General Data.....................................................................................8-9

VIII. Installation ..........................................................................................10

A. General..........................................................................................10

1. Pre-Installation Check Points ....................................................10

2. Location.....................................................................................10

B. Outside Slab Installation................................................................10

C. Clearances ....................................................................................12

D. Rooftop Installation........................................................................12

IX. Ductwork.............................................................................................12

X. Filters..................................................................................................13

XI. Conversion Procedure........................................................................13

XII. Condensate Drain ..............................................................................13

XIII. Electrical Wiring..................................................................................14

A. Power Wiring .................................................................................14

B. Special Instructions for Power

Wiring with Aluminum Conductors ............................................14

C. Control Wiring................................................................................15

D. Internal Wiring ...............................................................................15

E. Grounding......................................................................................15

F. Thermostat ....................................................................................16

XIV. Electrical Data ....................................................................................17

XV. Electric Heater Kits.............................................................................18

XVI. Airflow Performance ...........................................................................20

XVII. Indoor Air Flow Data...........................................................................21

XVIII. Crankcase Heat..................................................................................21

XIX. Pre-Start Check..................................................................................21

XX. Startup................................................................................................21

XXI. Operation............................................................................................22

XXII. Auxiliary Heat .....................................................................................22

XXIII. Replacement Parts.............................................................................22

XXIV. Charge Information.............................................................................22

XXV. Troubleshooting ..................................................................................22

XXVI. Wiring Diagrams .................................................................................22

2

!

sWARNING

PROPOSITION 65: THIS APPLIANCE CONTAINS FIBERGLASS INSULATION. RESPIRABLE PARTICLES OF

IBERGLASS ARE KNOWN TO THE

F STATE OF CALIFORNIA TO CAUSE CANCER.

!

sWARNING

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.

!

sWARNING

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

II. INTRODUCTION

This booklet contains the installation and operating instructions for your self-contained air conditioner. There are a few precautions that should be taken to derive maximum

atisfaction from it. Improper installation can result in unsatisfactory operation or dan-

s gerous 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, electrical characteristics, and accessories to determine if they are correct.

IV. EQUIPMENT PROTECTION FROM THE

IV. 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.

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.

V. SPECIFICATIONS

A. GENERAL

The Combination Electric Cooling Rooftop with optional electric heat is available in cooling capacity of 6 nominal tons. Units are convertible from bottom supply and return to side supply and return by relocation of supply and return air access panels. See cover installation detail.

The units are weatherized for mounting outside of the building.

3

B. MAJOR COMPONENTS

The unit includes a hermetically-sealed refrigerating system (consisting of a scroll compressor, condenser coil, evaporator coil with thermostatic expansion valve), a circulation air blower, a condenser fan, and all necessary internal electrical wiring. The cooling system of these units is factory-evacuated, charged with R-410A refrigerant and performance tested. Refrigerant amount and type are indicated on rating plate.

C. R-410A REFRIGERANT

ll units are factory charged with R-410A refrigerant.

A

1. Specification of R-410A:

Application: R-410A is not a drop-in replacement for R-22; equipment designs must accommodate its higher pressures. It cannot be retrofitted into R-22 units.

Pressure: The pressure of R-410A is approximately 60% (1.6 times) greater than

-22.Recovery and recycle equipment, pumps, hoses and the like need to have

R

design pressure ratings appropriate for R-410A. Manifold sets need to range up to 800 psig high-side and 250 psig low-side with a 550 psig low-side retard. Hoses need to have a service pressure rating of 800 psig. Recovery cylinders need to have a 400 psig service pressure rating. DOT 4BA400 or DOT BW400.

Combustibility: At pressures above 1 atmosphere, mixture of R-410A and air can become combustible. R-410A and air should never be mixed in tanks or supply

lines, or be allowed to accumulate in storage tanks. Leak checking should never be done with a mixture of R-410A and air. Leak checking can be performed safely

with nitrogen or a mixture of R-410A and nitrogen.

2. Quick Reference Guide For R-410A

• R-410A refrigerant operates at approximately 60% higher pressure (1.6 times) than R-22. Ensure that servicing equipment is designed to operate with R-410A.

• R-410A refrigerant cylinders are pink.

• R-410A, as with other HFC’s is only compatible with POE oils.

• Vacuum pumps will not remove moisture from POE oil.

• R-410A systems are to be charged with liquid refrigerants. Prior to March 1999, R410A refrigerant cylinders had a dip tube. These cylinders should be kept upright for equipment charging. Post March 1999 cylinders do not have a dip tube and should be inverted to ensure liquid charging of the equipment.

• Do not install a suction line filter drier in the liquid line.

• A liquid line filter drier is standard on every unit.

• Desiccant (drying agent) must be compatible for POE oils and R-410A

3. Evaporator Coil / TXV

The thermostatic expansion valve is specifically designed to operate with R-410A.

4. Tools Required For Installing & Servicing R-410A Models

Manifold Sets:

-Up to 800 PSIG High side

-Up to 250 PSIG Low Side

-550 PSIG Low Side Retard

Manifold Hoses:

-Service Pressure Rating of 800 PSIG

Recovery Cylinders:

-400 PSIG Pressure Rating

-Dept. of Transportation 4BA400 or BW400

!

sCAUTION

R-410A systems operate at higher pressures than R-22 systems. Do not use R-22 service equipment or components on R-410A equipment.

4

FIGURE 1

6 TON MODEL

OUTDOOR FAN

OUTDOOR COIL

FIGURE 2

BACK VIEW

[ ] Designates Metric Conversion

ST-A1143

5

FIGURE 3

SIDE VIEW

[ ] Designates Metric Conversion

FIGURE 4

FRONT VIEW

T-A1143

S

[ ] Designates Metric Conversion

6

ST-A1143

FIGURE 5

2-5/32 [55]

4-5/8 [118]

26 [660]

4.502 [114]

13-1/8 [333]

4

-1/2

[114]

13-1/8 [333]

77-15/32 [1968]

20 [508]

2-3/8 [60]

43-7/32 [1098]

2-3/8 [60]

RETURN

AIR

SUPPLY

AIR

[ ] DESIGNATES METRIC CONVERSIONS

TOP VIEW

ST-A1143

TOP VIEW

7

VI. GENERAL DATA - RLKN MODELS

M

D370BLD370BMC370BLC370BseireS -NKLR ledoM

Coolin

g

Performance Continued ->

Compresso

r

Outdoor Sound Ratin

g (

d

B

)

3

8383838

Outdoor Coil - Fin T

y

pe Louvered Louvered Louvered Louvered

Tube T

ype

M

icroChannel MicroChannel MicroChannel MicroChannel

MicroChannel Depth in. [mm

]

0

.7 [17.8] 0.7 [17.8] 0.7 [17.8] 0.7 [17.8]

Face Area sq. ft. [sq. m

]

16.4 [1.52]16.4 [1.52] 16.4 [1.52] 16.4 [1.52] ]

9[ 32 / 1]9[ 32 / 1]9[ 32 / 1]9[ 32 / 1]mcPF[ IPF / swoR

Indoor Coil - Fin T

y

p

e Louvered Louvered Louvered Louvered

Tube T

ype

MicroChannel MicroChannel MicroChannel MicroChannel

MicroChannel Depth in. [mm

]

1.3 [33] 1.3 [33] 1.3 [33] 1.3 [33]

Face Area sq. ft. [sq. m

]

6 [0.56] 6 [0.56] 6 [0.56] 6 [0.56]

]9[ 22 / 1]9[ 22 / 1]9[ 22 / 1]9[ 22 / 1]mcPF[ IPF / swoR

Refri

g

evlaV XTevlaV XTevlaV XTevlaV XTlortnoC tnare

Drain Connection No./Size in. [mm

1/1 [25.4] 1/1 [25.4] 1/1 [25.4] 1/1 [25.4]

Outdoor Fan - T

y

pe Propelle

r

Propelle

r

Propelle

r

Propelle

r

No. Used/Diameter in. [mm

]

1/24 [609.6] 1/24 [609.6] 1/24 [609.6] 1/24 [609.6]

Drive T

y

pe/No. Speed

s

Direct/1 Direct/1 Direct/1 Direct/1

PH 2/1 ta 1PH 2/1 ta 1PH 2/1 ta 1PH 2/1 ta 1PH/srotoM .oN

5701570157015701MPR rotoM

Indoor Fan - T

y

pe FC Centrifugal FC Centrifugal FC Centrifugal FC Centrifugal

No. Used/Diameter in. [mm

]

1/11x10 [279×254] 1/11×10 [279×254] 1/11×10 [279×254]

Drive T

y

tleBep

(Adj

ustable

)

Belt(Adjustable

)

Belt(Adjustable

)

Belt(Adjustable

)

niSsdeepS .oN

g

le Single Single Single

1111srotoM .oN

2 2 2 2PH rotoM

5271527152715271MPR rotoM

Motor Frame Siz

e

65656565

Filter - T

y

pe Disposabl

e

Disposabl

e

Disposabl

e

Disposabl

e

seYseYseYseYdehsinruF

(No.) Size Recommended in. [mm × mm × mm]

Refri

g

erant Charge Oz. [g] 67 [1899]67 [1899] 67 [1899] 67 [1899]

Wei

g

hts

Net Wei

g

ht lbs. [k

g]

569 [258]574 [260] 569 [258] 574 [260]

Ship Weight lbs. [kg

]

576 [261]579 [263] 576 [261] 579 [263]

1

4

]

]5.02[ 000,07]5.02[ 000,07]5.02[ 000,07]5.02[ 000,07]Wk[ utB yticapaC gnilooC ssorG

EER/IEER

11.2/NA/ 11.2/NA 11.2/NA/ 11.2/NA//

Nominal CFM/AHRI Rated CFM [L/s] 2400/2100 [1133/991] 2400/2100 [1133/991] 2400/2100 [1133/991] 2400/2100 [1133/991] AHRI Net Cooling Capacity Btu [kW] 68,000 [19.92] 68,000 [19.92] 68,000 [19.92] 68,000 [19.92]

]84.31[ 000,64]84.31[ 000,64]84.31[ 000,64]84.31[ 000,64]Wk[ utB yticapaC elbisneS teN

]

54.6[ 000,22]54.6[ 000,22]54.6[ 000,22]54.6[ 000,22]Wk[ utB yticapaC tnetaL teN

IEER

9.219.219.219.21

70.670.670.670.6Wk rewoP metsyS teN

2

l (2-Stage)lorcS/1l (2-Stage)lorcS/1l (2-Stage) lorcS/1l (2-Stage)lorcS/1epyT/.oN

]2891[ 0024]2891[ 0024]2891[ 0024]2891[ 0024]s/L[ MFC

(4)2×16×16 [51×406×406]

(4)2×16×16 [51×406×406] (4)2×16×16 [51×406×406]

(4)2×16×16 [51×406×406]

1/11×10 [279×254]

NOMINAL SIZES 6 TON [21.1 kW]

[ ] Designates Metric Conversions

NOTES:

1. Cooling Performance is rated at 95° F ambient, 80° F entering dry bulb, 67° F entering wet bulb. Gross capacity does not include the effect of fan motor heat. AHRI rated capacity is net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Large Equipment certification program, which is based on AHRI Standard 340/360.

2. EER and IEER are rated at AHRI conditions and in accordance with DOE test procedures and AHRI Standard 340/360.

3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards. Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.

4. Outdoor Sound Rating shown is tested in accordance with AHRI Standard 270.

8

GENERAL DATA - RLKN MODELS

MY370BLY370BseireS -NKLR ledoM

Coolin

g

Performance

Gross Coolin

g

Capacit

y

Btu [kW

]

7

0,000 [20.5]70,000 [20.5]

EER/IEER 11.2/N

A

1

1.2/N

A

Nominal CFM/AHRI Rated CFM [L/s

]

2400/2100 [1133/991

]

2400/2100 [1133/991

]

AHRI Net Coolin

g

Capacit

y

Btu [kW

]

6

8,000 [19.92]68,000 [19.92]

Net Sensible Capacit

y

Btu [kW

]

4

6,000 [13.48]46,000 [13.48]

Net Latent Capacit

y

Btu [kW

]

2

2,000 [6.45]22,000 [6.45]

IEER 12.9 12.9

Net S

y

s

tem Power k

W

6

.07 6.07

Compresso

r

No./T

y

l (2-Stage)lorcS/1l (2-Stage)lorcS/1ep

Outdoor Sound Ratin

g (

d

B

)

3

838

Outdoor Coil - Fin T

y

pe Louvered Louvered

Tube T

ype

MicroChannel MicroChannel

MicroChannel Depth in. [mm

]

0

.7 [17.8] 0.7 [17.8]

Face Area sq. ft. [sq. m

]

1

6.4 [1.52]16.4 [1.52] ]

9[ 32 / 1]9[ 32 / 1]mcPF[ IPF / swoR

Indoor Coil - Fin T

y

p

e Louvered Louvered

Tube T

ype

M

icroChannel MicroChannel

MicroChannel Depth in. [mm

]

1

.3 [33] 1.3 [33]

Face Area sq. ft. [sq. m

]

6 [0.56] 6 [0.56]

]9[ 22 / 1]9[ 22 / 1]mcPF[ IPF / swoR

Refri

g

evlaV XTevlaV XTlortnoC tnare

Drain Connection No./Size in. [mm

]

1/1 [25.4] 1/1 [25.4]

Outdoor Fan - T

y

pe Propelle

r

Propelle

r

No. Used/Diameter in. [mm

]

1/24 [609.6] 1/24 [609.6]

Drive T

y

pe/No. Speed

s

Direct/1 Direct/1

]2891[ 0024]2891[ 0024]s/L[ MFC

PH 2/1 ta 1PH 2/1 ta 1PH/srotoM .oN

57015701MPR rotoM

Indoor Fan - T

y

pe FC Centrifugal FC Centrifugal

No. Used/Diameter in. [mm

]

1/11×10 [279×254] 1/11×10 [279×254]

Drive T

y

tleBep

(Adj

ustable

)

Belt(Adjustable

)

niSsdeepS .oN

g

le Single

11srotoM .oN

2/1 12/1 1PH rotoM 52715271MPR rotoM

Motor Frame Siz

e

6565

Filter - T

y

pe Disposabl

e

Disposabl

e

seYseYdehsinruF

(

No.) Size Recommended in. [mm × mm × mm] (4)2×16×16 [51×406×406]

Refri

g

erant Charge Oz. [g] 67 [1899]67 [1899]

Wei

g

hts

Net Wei

g

ht lbs. [k

g]

569 [258]574 [260]

Ship Weight lbs. [kg

]

576 [261]579 [263]

1

2

4

(4)2×16×16 [51×406×406]

NOMINAL SIZES 6 TON [21.1 kW]

[ ] Designates Metric Conversions

NOTES:

1. Cooling Performance is rated at 95° F ambient, 80° F entering dry bulb, 67° F entering wet bulb. Gross capacity does not include the effect of fan motor heat. AHRI rated capacity is net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Large Equipment certification program, which is based on AHRI Standard 340/360.

2. EER and IEER are rated at AHRI conditions and in accordance with DOE test procedures and AHRI Standard 340/360.

3. Heating Performance limit settings and rating data were established and approved under laboratory test conditions using American National Standard Institute standards. Ratings shown are for elevations up to 2000 feet. For elevations above 2000 feet, ratings should be reduced at the rate of 4% for each 1000 feet above sea level.

4. Outdoor Sound Rating shown is tested in accordance with AHRI Standard 270.

9

VIII. INSTALLATION

36“

60“

48“

VERTICAL CLEARANCE

18“

12“

A. GENERAL

1. PRE-INSTALLATION CHECK-POINTS Before attempting any installation, the following points should be carefully con-

sidered:

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

estricted or other than outdoor ambient conditions prevail. Since the application

r 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 6 and 7.)

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 inspec-

tion 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.

FIGURE 6

PACKAGED AIR CONDITIONER

OUTSIDE SLAB INSTALLATION, BASEMENT OR CRAWL SPACE DISTRIBUTION SYSTEM

FIGURE 7

PACKAGED AIR CONDITIONER

OUTSIDE SLAB INSTALLATION, CLOSET DISTRIBUTION SYSTEM. SLAB FLOOR CONSTRUCTION

10

ST-A1142-13

ST-A1142-12

FIGURE 8

PACKAGED AIR CONDITIONER

IGGING FOR LIFTING

R

3

9

A

B

C

E

N

T

E

GR

OF

R

A

V

I

T

Y

2

6

-

1

/

8

FIGURE 9

PACKAGED AIR CONDITIONER

ROOFCURB INSTALLATION

D

CORNER WEIGHTS BY PERCENTAGE

A B C D

C

ILL I296

23% 29% 21% 27%

ILL I300

ILL I301

11

!

sWARNING

DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO ANY OTHER HEAT PRO-

UCING DEVICE SUCH AS A FIRE-

D PLACE INSERT, STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE, CARBON MONOXIDE POISONING, EXPLOSION, PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR DEATH.

C. CLEARANCES

The following minimum clearances must be observed for proper unit performance

nd serviceability.

a

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

clearance.

2. See Figure 6 for illustration of minimum installation-service clearances.

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. (See specification sheet for weight of unit.) This is very important and user’s responsibility.

2. For rigging and roofcurb details, see Figures 8 and 9. 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 10.

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 10

ACKAGED AIR CONDITIONER

P

FLAT ROOFTOP INSTALLATION, ATTIC OR DROP CEILING DISTRIBUTION

YSTEM. MOUNTED ON ROOFCURB. CURB MUST BE LEVEL

S

12

ST-A1142-10

IX. 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.

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 barrier. One-

half to 1" thickness of insulation is usually sufficient for ductwork inside the air condi-

ioned space.

t

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".

X. FILTERS

This unit is provided with disposable filters. When replacing filters, ensure they are inserted fully to the back to prevent bypass.

XI. CONVERSION PROCEDURE

DOWNFLOW TO HORIZONTAL

1. Remove the screws and covers from the outside of the supply and return sections.

2. Install the covers in the bottom supply and return openings with the painted side up. See Figure 11. Use the existing gasket to seal the covers.

FIGURE 11

COVER GASKET DETAIL

ILL I631

3. Secure the supply cover to the base of the unit with 1 screw, engaging prepunched tab in unit base.

4. Secure the return cover to the base of the unit with screws, engaging prepunched holes in the unit base.

XII. CONDENSATE DRAIN

IMPORTANT: Install a condensate trap to ensure proper condensate drainage. See Figure 12.

The condensate drain pan has a threaded female 3/4 inch NPT connection. Consult local codes or ordinances for specific requirements of condensate drain piping and disposal.

• Use a thin layer of Teflon tape or paste on drain pan connections and install only hand tight.

• Do not over tighten drain pan connections as damage to the drain pan may occur.

• Drain line MUST NOT block service access panels.

• Drain line must be no smaller than drain pan outlet and adequately sized to accommodate the condensate discharge from the unit.

• Drain line should slope away from unit a minimum of 1/8” per foot to ensure proper drainage.

• Drain line must be routed to an acceptable drain or outdoors in accordance with local codes.

• Do not connect condensate drain line to a closed sewer pipe.

• Drain line may need insulation or freeze protection in certain applications.

13

IGURE 12

F

ONDENSATE DRAIN

C

DO NOT OVERTIGHTEN DRAIN FITTING

XIII. 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. It is important that proper electrical power is available at the unit. Voltage should not vary more than 10% from that stamped on the unit rating plate. On three phase units, phases must be balanced within 3%.

2. Install a branch circuit disconnect within sight of the unit and of adequate size.

3. For branch circuit wiring (main power supply to unit disconnect), the minimum wire size can be determined using the circuit ampacity found on the unit nameplate.

4. This unit incorporates single point electrical connection for unit and electric heat accessory.

5. Power wiring must be run in grounded rain-tight conduit. Connect the power field wiring as follows:

a. NO ELECTRIC HEAT - Connect the field wires directly to the contactor pigtail

b. WITH ELECTRIC HEAT - Connect the field wires to the terminal block on the

NOTE: For field installation of a heater kit, follow the instructions provided with the heater kit.

6. The pigtail wires in the electric heat access area are factory wired to the contac-

7. DO NOT connect aluminum field wires to electric heat kit power input terminals.

in the electric heat access area. Connect ground wire to ground lug.

electric heater kit in the electric heat access area. Connect the unit contactor pigtails to the appropriate fuse block on the heater kit. Connect the ground wire to the ground lug on the heater kit.

tor in the control box.

14

TABLE E. WIRE SIZES

AWG Copper AWG Aluminum Connector Type and Size Wire Size Wire Size (or equivalent)

#12 #10 T&B Wire Nut PT2 #10 #8 T&B Wire Nut PT3 #8 #6 Ilsco Split Bolt AK-6 #6 #4 Ilsco Split Bolt AK-4 #4 #2 Ilsco Split Bolt AK-2 #3 #1 Ilsco Split Bolt AK-1/0 #2 #0 Ilsco Split Bolt AK-1/0 #1 #00 Ilsco Split Bolt AK-2/0 #0 #000 Ilsco Split Bolt AK-4/0

B. SPECIAL INSTRUCTIONS FOR POWER WIRING WITH ALUMINUM CONDUCTORS.

1. Select the equivalent aluminum wire size from the tabulation below:

2. Attach a length (6" or more) of recommended size copper wire to the unit terminals L1 and L3 for single phase, L1, L2, L3 for three phase.

!

sWARNING

THE UNIT MUST BE PERMANENTLY GROUNDED. A GROUNDING LUG IS PROVIDED IN THE ELECTRIC HEAT

IT ACCESS AREA FOR A GROUND

K WIRE. FAILURE TO GROUND THIS UNIT CAN RESULT IN FIRE OR ELECTRICAL SHOCK CAUSING PROPERTY DAMAGE, SEVERE PERSONAL IN JURY OR DEATH.

3. Splice copper wire pigtails to aluminum wire with U.L. recognized connectors for copper-aluminum splices. Follow these instructions very carefully to make a

ositive and lasting connection;

p

a. Strip insulation from aluminum conductor. b. Coat the stripped end of the aluminum wire with the recommended inhibitor

c. Clean and recoat aluminum conductor with inhibitor. d. Make the splice using the above listed wire nuts or split bolt connectors. e. Coat the entire connection with inhibitor and wrap with electrical insulating

WARRANTY MAY NOT APPLY IF CONNECTIONS ARE NOT MADE PER INSTRUC-

IONS

T

and wire brush aluminum surface through inhibitor. Inhibitors: Brundy, Pentex “A”; Alcoa, No. 2EJC; T&B KPOR Shield.

tape.

C. 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 adjacent to the compressor access panel. See Figure 13. Use a minimum #18 AWG thermostat wire. For wire lengths exceeding 50', use #16 AWG thermostat wire. The low voltage wires are connected to the unit pigtails which are supplied with the unit in the low voltage connection box located below the unit control box.

3. Figure 13 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 compressor 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 13

LOW VOLTAGE CONNECTIONS DIAGRAMS

THERMOSTAT

SUB-BASE

R

W

G

Y

E. GROUNDING

GROUNDING MAY 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.

STANDARD CONTROL WIRING

UNIT CONTROLS

WIRE PIGTAILS

RED

BLACK

GRAY

YELLOW

Y2

C

ORANGE

BROWN

15

BRANCH C

IRCUIT

DISCONNECT

POWER

CONTROL

2 4

V

FIGURE 14

RECOMMENDED LOCATION OF BRANCH CIRCUIT DISCONNECT

ST-A1142-11

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 thermostat package CAREFULLY because each has some different wiring requirements.

16

XIV. ELECTRICAL DATA

B073CL B073CM B073DL B073DM B073YL B073YM

U

nit Operating Voltage Range 187-253 187-253 414-506 414-506 518-632 518-632

V

olts 208/230 208/230 460 460 575 575

Phase333333

H

z606060606060

Minimum Circuit Ampacity 31 31 16 16 11 11

Minimum Overcurrent Protection

D

evice Size

35 35 20201515

M

aximum Overcurrent Protection

D

evice Size

4

5 45 20201515

No.111111

V

olts 208/230 208/230 460 460 575 575

Phase333333

RPM 3450 3450 3450 3450 3450 3450

H

P, Compressor 1555555

Amps (RLA), Comp. 1 17.6 17.6 8.5 8.5 6.3 6.3

Amps (LRA), Comp. 1 136 136 66.1 66.1 55.3 55.3

HP, Compressor 2

Amps (RLA), Comp. 2

Amps (LRA), Comp. 2

No.111111

Volts 208/230 208/230 460 460 575 575

Phase111111

HP 1/2 1/2 1/2 1/2 1/2 1/2

Amps (FLA, each) 2.3 2.3 1.5 1.5 1.0 1.0

Amps (LRA, each) 5.6 5.6 3.1 3.1 2.2 2.2

No.111111

Volts 208/230 208/230 460 460 575 575

Phase333333

HP 2 2 2 2 1 1/2 1 1/2

Amps (FLA, each) 6.2 6.2 3.0 3.0 2.1 2.1

Amps (LRA, each) 47 47 24 24 13.1 13.1

Evaporator Fan

E

LECTRICAL DATA - RLKN- SERIES

Unit InformationCompressor MotorCondenser Motor

17

XV. ELECTRIC HEATER KITS

RLKN-B073CL No Heat----- ----- ----- ----- 31/31 45 45 ----- ----- 31/31 45 45

A

06C 1 4.2/5.614.33/19.111.7/13.5 31/31 45 45 15/17 15/20 31/31 45 45

A

10C 1 7.2/9.624.56/32.7520/23.1 31/37 45 45 25/29 25/30 31/31 45 45

A15C 1 10.8/14.4 36.84/49.13 30.1/34.7 46/52 50 60 38/44 40/45 31/31 45 45

A

20C 1 14.4/19.2 49.13/65.5 40/46.3 58/66 60 70 50/58 50/60 31/31 45 45

A

24C 1 18/24 61.41/81.88 50/57.7 71/80 80 80 63/73 70/80 31/31 45 45

RLKN-B073CM No Heat----- ----- ----- ----- 31/31 45 45 ----- ----- 31/31 45 45

A06C 1 4.2/5.614.33/19.111.7/13.5 31/31 45 45 15/17 15/20 31/31 45 45

A10C 1 7.2/9.624.56/32.7520/23.1 31/37 45 45 25/29 25/30 31/31 45 45

A15C 1 10.8/14.4 36.84/49.13 30.1/34.7 46/52 50 60 38/44 40/45 31/31 45 45

A

20C 1 14.4/19.2 49.13/65.5 40/46.3 58/66 60 70 50/58 50/60 31/31 45 45

A24C 1 18/24 61.41/81.88 50/57.7 71/80 80 80 63/73 70/80 31/31 45 45

RLKN-B073DL No Heat----- ----- ----- ----- 16 20 ----- -----16 20

A06D 1 5.619.16.716 20 9 15 16 20

A10D 1 9.632.7511.6 19 20 15 15 16 20

A15D 1 14.4 49.13 17.4 26 30 22 25 16 20

A20D 1 19.2 65.5 23.3 33 35 30 30 16 20

A24D 1 24 81.88 28.9 40 40 37 40 16 20

RLKN-B073DM No Heat----- ----- ----- ----- 16 20 ----- ----- 16 20

A06D 1 5.619.16.716 20 9 15 16 20

A10D 1 9.632.7511.6 19 20 15 15 16 20

A15D 1 14.4 49.13 17.4 26 30 22 25 16 20

A20D 1 19.2 65.5 23.3 33 35 30 30 16 20

A24D 1 24 81.88 28.9 40 40 37 40 16 20

Rated Heater

kW @ 480 V

Heater

KBTU/Hr @

480 V

Heater

Amp. @ 480

V

Unit Min. Ckt.

Ampacity @

480 V

Max. Fuse

Size 480V

Min. Circuit

Ampacity

480V

480 V 480 V

Min. Ckt. Ampacity

480V

480 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

tiK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

RHEEM Model Number

renoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

No. of

Sequence

Steps

Rated Heater

kW @ 480 V

Heater

KBTU/Hr @

480 V

Heater

Amp. @ 480

V

Unit Min. Ckt.

Ampacity @

480 V

Max. Fuse

Size 480V

Min. Circuit

Ampacity

480V

480 V 480 V

Min. Ckt. Ampacity

480V

480 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

tiK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

RHEEM Model Number

renoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

No. of

Sequence

Steps

Rated Heater

k

W @

208/240 V

Heater

K

BTU/Hr @

208/240 V

Heater

A

mp. @

208/240 V

Unit Min. Ckt.

A

mpacity @

208-240 V

Max. Fuse

Size

208/240V

Min. Circuit

Ampacity 208/240V

2

08 V 240 V 208 V 240 V

Min. Ckt. Ampacity

208/240V

2

08/240 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

tiK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

RHEEM Model Number

r

enoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

No. of

Sequence

Steps

Rated Heater

kW @

2

08/240 V

Heater

KBTU/Hr @

2

08/240 V

Heater

Amp. @

2

08/240 V

Unit Min. Ckt.

Ampacity @

2

08-240 V

Max. Fuse

Size

2

08/240V

Min. Circuit

Ampacity

2

08/240V

Max. Over Current

P

rotective Device Size

208 V 240 V 208 V 240 V

Max. Over Current

P

rotective Device Size

Min. Ckt. Ampacity 208/240V

208/240 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

t

iK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

RHEEM Model Number

renoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

R

XJJ- Heater

Kit Nominal

k

W

N

o. of

Sequence

S

teps

Max. Over Current

P

rotective Device Size

Max. Over Current

P

rotective Device Size

Max. Over Current

Protective Device Size

Max. Over Current

Protective Device Size

Max. Over Current

Protective Device Size

Max. Over Current

Protective Device Size

18

80 80 63

45 45 ----- ----- 31

45 45 15

45 45 25

50 60 38

60 70 50

80 80 63

----- -----1

20 9 15

20 15

35 30

40 37

20 ----- -----1

20 9 15

20 15

35 30

40 37

R

LKN-B073YL No Heat----- ----- ----- ----- 11 15 ----- ----- 11 15

A

15Y 1 14.4 49.13 13.9 20 20 18 20 11 15

A20Y 1 19.2 65.5 18.8 27 30 24 25 11 15

A

24Y 1 24 81.88 23.1 32 35 29 30 11 15

RLKN-B073YM No Heat----- ----- ----- ----- 11 15 ----- ----- 11 15

A

15Y 1 14.4 49.13 13.9 20 20 18 20 11 15

A20Y 1 19.2 65.5 18.8 27 30 24 25 11 15

A

24Y 1 24 81.88 23.1 32 35 29 30 11 15

R

ated Heater

k

W @ 600 V

H

eater

KBTU/Hr @

600 V

H

eater

Amp. @ 600

V

U

nit Min. Ckt.

Ampacity @

600 V

Max. Fuse

Size 600V

Min. Circuit

Ampacity

600V

600 V 600 V

Min. Ckt. Ampacity

600V

6

00 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

t

iK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

RHEEM Model Number

renoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

N

o. of

Sequence

Steps

Rated Heater

kW @ 600 V

Heater

KBTU/Hr @

600 V

Heater

A

mp. @ 600

V

Unit Min. Ckt.

A

mpacity @

6

00 V

Max. Fuse

Size 600V

Min. Circuit

A

mpacity

6

00V

600 V 600 V

Min. Ckt. A

mpacity

6

00V

600 VOLT, THREE PHASE, 60 HZ, AUXILIARY ELECTRIC HEATER KITS CHARACTERISTICS AND APPLICATION

tiK retaeH dna tinU htoB rof ylppuS rewoP etarapeStiK retaeH dna tinU htoB rof ylppuS rewoP elgniS

R

HEEM Model Number

r

enoitidnoC riAtiK retaeHrenoitidnoC riAtiK retaeH

No. of

S

equence

S

teps

R

Max. Over Current

Protective Device Size

Max. Over Current

Protective Device Size

M

ax. Over Current

Protective Device Size

M

ax. Over Current

Protective Device Size

FIGURE 15

HEATER KIT INSTALLATION

ILL I312

19

1000 1200 1400 1600 1800 2000 2200 2400 2600 2800

.035 .040 .060 .070 .085 .100 .110 120 .125 .130

.055 .060 .066 .072 .080 .086 .093 .100 .107 .115

.05 .06 .07 .08 .09 .10 .11 .12 .13 .15

NOTES:

4. BHP = WATTS X MOTOR EFF.

5. ADD COMPONENT RESISTANCE TO DUCT STATIC TO DETERMINE TOTAL E.S.P.

746

COMPONENT

RESISTANCE - INCHES WATER

WET COIL

DOWNFLOW

ECONOMIZER

STANDARD INDOOR AIRFLOW - CFM

COMPONENT AIR RESISTANCE

1. PERFORMANCE SHOWN WITH DRY COIL & STANDARD 1" FILTERS

2. STANDARD CFM @ .075 LBS./CU. FT.

3. MOTOR EFFICIENCY = 80%

R.A. DAMPER

1205

1230

1295

1380

1240

1255

—————

1015

WATTS

RPM

1210

“M”

—

980

1150

1250

1330

WATTS

1180

RPM

1425

1205

1220

1230

1240

—

1525

1630

—

1255

1295

940

1180

1090

1260

WATTS

1150

RPM

890

WATTS

1120

RPM

850

WATTS

RPM

1090

800

WATTS

RPM

1050

760

WATTS

RPM

1010

720

WATTS

975

RPM

670

WATTS

1370

1175

1190

1205

1220

1130

1035

1220

1325

1145

1160

1180

1200

1160

1000

1060

1250

1120

1130

1145

1160

940

1100

1180

1025

1135

1120

1100

1085

900

960

1130

1045

1100

1050

1065

1080

840

920

1000

1060

1015

1030

1050

1065

800

860

930

1005

—

1470

1580

1665

—

1235

1250

1270

1430

1530

1635

1730

1220

1230

1240

1255

1355

1450

1580

1675

1185

1205

1225

1235

1335

1390

1505

1615

1175

1150

1200

1220

1215

1300

1425

1540

1185

1165

1135

1120

1155

1260

1350

1470

1110

1155

1135

1085

1110

1240

1295

1305

930

975

995

RPM

EXTERNAL STATIC PRESSURE – INCHES OF WATER

WATTS

RPM

WATTS

RPM

WATTS

RPM

1015

1035

650

750

820

880

960

895

930

955

980

1000

605

720

780

850

910

850

895

920

945

960

560

675

740

810

870

785

860

880

910

930

1125

1100

1055

1080

1140

1225

1335

1050

1025

1045

1065

1090

990

1175

1260

1085

990

1020

1040

1060

945

1105

1020

1200

950

980

1005

1030

XVI. BELT-DRIVE AIRFLOW PERFORMANCE 6 TON MODEL

—

625

680

750

830

900

975

1145

WATTS

—

815

840

—

600

—

775

———

650

810

L”

“

865

700

825

660

780

RPM

WATTS

RPM

WATTS

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.10 1.20 1.30 1.40 1.50

VOLTAGE 208-230, 460 & 575 V. - 3 PHASE

CAPACITY 6 TON

RPM

1060

890

920

945

975

1000

760

835

915

1100

1005

970

940

910

880

855

945

855

780

720

815

1075

930

900

870

845

AIR

CFM

1800

2000

2100

2200

2300

2400

2500

2600

FLOW

20

2700

MOTOR H.P. 1-1/2 1-1/2

BLOWER SHEAVE 6.4 PITCH DIAMETER 6.4 PITCH DIAMETER

DRIVE PACKAGE “L” “M”

TURNS OPEN 0 1 2 3 4 5 6 0 1 2 3 4 5 6

RPM 1100 1050 1000 945 895 845 780 1295 1230 1195 1145 1100 1050 1000

MOTOR SHEAVE 2.8-3.8 PITCH DIAMETER – ADJ. 3.4-4.4 PITCH DIAMETER – ADJ.

XVII. INDOOR AIR FLOW DATA

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

XVIII. CRANKCASE HEAT (OPTIONAL)

rankcase heat is not required on scroll type compressors, but may be necessary for

C certain situations.

XIX. 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?

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?

XX. 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.

8. Check the refrigerant charge using the instructions located on compressor access panel. Replace service port caps. Service port cores are for system access only and will leak if not tightly capped.

9. Turn thermostat system switch to proper mode “HEAT” or “COOL” and set thermostat to proper temperature setting. Record the following after the unit has run some time.

A. Operating Mode _______________________________ B. Discharge Pressure (High) ___________________PSIG C. Vapor Pressure at Compressor (Low) __________PSIG D. Vapor Line Temperature at Compressor___________°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 Contactor _______________________Amps K. Model Number_________________________________ L. Serial Number _________________________________ M.Location______________________________________ N. Owner _______________________________________ O. Date_________________________________________

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.

21

!

sWARNING

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.

XXI. OPERATION

IMPORTANT: The compressor has an internal overload protector. Under some conditions, it can take up to 2 hours for this overload to reset. Make sure overload has had

ime to reset before condemning the compressor.

t

CONTROL SYSTEM OPERATION

1. In the cooling mode, the thermostat will, on a call for cooling, energize the compressor contactor and the indoor blower relay. The indoor blower can be operated continuously by setting the thermostat fan switch at the “ON” position.

XXII. AUXILIARY HEAT

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

XXIII. REPLACEMENT PARTS

Contact your local distributor for a complete parts list.

XXIV.CHARGE INFORMATION

Refer to the appropriate charge chart included in this manual.

XXV. TROUBLESHOOTING

Refer to the troubleshooting chart included in this manual.

XXVI. WIRING DIAGRAMS

Refer to the appropriate wiring diagram included in this manual.

22

FIGURE 16

SYSTEM CHARGE CHART - REFRIGERANT 410A

92-104690-04-01

OUTDOOR

DRY BULB

115 508 / 143 105 443 / 142

95 385 / 141 85 333 / 138 75 281 / 65 243 / 131 55 205 / 128

115 105

95 85 75 65 55

NOTICE:

issue. Refer to unit Installation troubleshooting section for further support.

• Confirm the indoor supply air flow is correct, reference rated CFM in the unit Specification

• Allow the system to run long enough for temperatures and pressures to stabilize.

Sheets.

• It is required to fine tune unit charge. Indoor ambient temperature must be between 72°F and 82°F dry bulb at the indoor coil.

• Measure liquid line temperature at four (4) inches prior to metering device.

• If obtaining rated sub-cooling values causes liquid/vapor pressures that are significantly different (>20 psig) from those listed on the table, there may be a component or air flow

• Sub-cooling tolerance is +/- 1.5°F

Liquid Pressure / Vapor Pressure

9

10

6 -TON

17 16 14 11

8

Pressure Requirements - Gross Charge Check ONLY

Sub Cooling Requirements - Final Charge Verification

136

HARGING CHARTS

C

23

TROUBLESHOOTING CHART

!

WARNING

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 –

The high pressure control opens at 450 PSIG

• Interconnecting low voltage wiring damaged • Replace thermostat wiring

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

compressor doesn’t • Start relay defective (single phase only) • Replace

• 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

• Low voltage condition • Add start kit components

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

Low head – high vapor pressures • Flow check piston size too large • Change to correct size piston

• Defective Compressor valves • Replace compressor

• Incorrect capillary tubes • Replace coil assembly

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-condensate 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

24

FIGURE 17

NOTES

COMPONENTCODES

WIRE COLOR CODE

BK......BLACK

BR......BROWN

BL.......BLUE

G........GREEN

GY......GRAY

O........ORANGE

PR......PURPLE

R........RED

W.......WHITE

Y........YELLOW

WIRINGINFORMATION

WARNING

-CABINET MUST BE PER MANENTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL

CODES AS APPLICABLE.

REPLACEMENT WIRE

-MUST BE THE SAME SIZE AND TYPE

OF INSULATION AS ORIGINAL (105C. MIN.)

-FIELD INSTALLED

-FACTORY STANDARD

LOW VOLTAGE

-FIELD INSTALLED

-FACTORY OPTION

-FACTORY STANDARD

LINE VOLTAGE

ORIGINAL RELEASE

NO.:

ELECTRICAL WIRING DIAGRAM

MODELED

BY:

CHECKED:APPROVED:

REV:PART NO.:

DATE:

R-1074S001

90-23597-35

03-06-18

00

208/230/460V, 2-STAGE, 3 PHASE 60 HZ

BELT DRIVE

PACKAGE AIR CONDITIONER

BCBRCC

COMPCTFTGLGND

HPC

IBMBM

LAC

LPC

OFM

PLRCTB

TDC

WN

BLOWER MOTOR

BLOWER RELAY

COMPRESSOR CONTACTOR

COMPRESSOR

CONTROL TRANSFORMER

FREEZE STAT

GROUND LUG

GROUND

HIGH PRESSURE CONTROL

INDOOR BLOWER MOTOR BELT DRIVE

LOW AMBIENT COOLING CONTROL

LOW PRESSURE CONTROL

OUTDOOR FAN MOTOR

PLUG

RUN CAPACITOR

TERMINAL BLOCK (LOW VOLTAGE)

TIME DELAY CONTROL

WIRE NUT

TCJW

1. CONNECTORS SUITABLE FOR USE WITH COPPER

CONDUCTORS ONLY.

2. COMPRESSOR MOTOR THERMALLY PROTECTED. ALL 3 PHASE

MODELS ARE PROTECTED UNDER PRIMARY SINGLE

PHASE CONDITIONS.

3. CONTROL TRANSFORMER FACTORY WIRED FOR 230 VOLT ON

“J” & “C” MODELS. MOVE BLACK WIRE TO 208V TAP FOR 208V

APPLICATION. SEE INSET FOR OTHER VOLTAGES

4. CONTACTOR FACTORY WIRED. CONNECT FIELD WIRE TO

FACTORY SUPPLIED PIGTAIL.

5. LOW VOLTAGE CIRCUIT IS N.E.C. CLASS 2 WITH A CLASS 2

TRANSFORMER. 24V, 50/60 HZ SUPPLIED.

6. CONNECT FIELD WIRING IN GROUNDED RAIN TIGHT CONDUIT

TO 60 HZ FUSED DISCONNECT.

7. MOTOR FACTORY WIRED FOR CORRECT SPEED.

8. SEE FUSE LABEL ON UNIT FUSE BOX FOR FUSE SIZING AND

CLASSIFICATION.

9. WIRED FROM PL2 (6 & 9) GO TO THE MIXED AIR SENSOR ON

THE OPTIONAL ECONOMIZER.

10. Y2 IS USED ONLY FOR THE OPTIONAL ECONOMIZER.

11. REMOVE JUMPER FOR FIELD INSTALLED OCCUPANCY RELAY.

(J3)

12345

PL-9

PL-10

PL-11

4 3 2 1

G

BK

R

BL

2T1

2T2

2T3

G

BL

C

BR

W

G

Y2

BK

O

GY

TO

VFD

KIT

(OPT)

PL-9

TO

VFD

KIT

(OPT)

5 4 3 2 1

GND

T2

T3

T1

COMP

42

45

44

O

BL

WN 10

BL

COMP

24V

IRING DIAGRAM

W

25

FIGURE 18

NOTES

COMPONENTCODES

WIRE COLOR CODE

BK......BLACK

BR......BROWN

BL.......BLUE

G........GREEN

GY......GRAY

O........ORANGE

PR......PURPLE

R........RED

W.......WHITE

Y........YELLOW

WIRINGINFORMATION

WARNING

-CABINET MUST BE PER MANENTLY GROUNDED

AND CONFORM TO I.E.C., N.E.C., C.E.C.,

NATIONAL WIRING REGULATIONS, AND LOCAL

CODES AS APPLICABLE.

REPLACEMENT WIRE

-MUST BE THE SAME SIZE AND TYPE

OF INSULATION AS ORIGINAL (105C. MIN.)

-FIELD INSTALLED

-FACTORY STANDARD

LOW VOLTAGE

-FIELD INSTALLED

-FACTORY OPTION

-FACTORY STANDARD

LINE VOLTAGE

ORIGINAL RELEASE

NO.:

ELECTRICAL WIRING DIAGRAM

MODELED

BY:

CHECKED:APPROVED:

REV:PART NO.:

DATE:

R-1074S001

90-23597-36

03-06-18

00

575V, 2-STAGE, 3 PHASE 60 HZ

BELT DRIVE

PACKAGE AIR CONDITIONER

BCBRCC

COMPCTFTGLGND

HPC

IBMBM

LAC

LPC

OFM

PLRCTB

TDC

WN

BLOWER MOTOR

BLOWER RELAY

COMPRESSOR CONTACTOR

COMPRESSOR

CONTROL TRANSFORMER

FREEZE STAT

GROUND LUG

GROUND

HIGH PRESSURE CONTROL

INDOOR BLOWER MOTOR BELT DRIVE

LOW AMBIENT COOLING CONTROL

LOW PRESSURE CONTROL

OUTDOOR FAN MOTOR

PLUG

RUN CAPACITOR

TERMINAL BLOCK (LOW VOLTAGE)

TIME DELAY CONTROL

WIRE NUT

TCJW

1. CONNECTORS SUITABLE FOR USE WITH COPPER

CONDUCTORS ONLY.

2. COMPRESSOR MOTOR THERMALLY PROTECTED. ALL 3 PHASE

MODELS ARE PROTECTED UNDER PRIMARY SINGLE

PHASE CONDITIONS.

3. CONTROL TRANSFORMER FACTORY WIRED FOR 230 VOLT ON

“J” & “C” MODELS. MOVE BLACK WIRE TO 208V TAP FOR 208V

APPLICATION. SEE INSET FOR OTHER VOLTAGES

4. CONTACTOR FACTORY WIRED. CONNECT FIELD WIRE TO

FACTORY SUPPLIED PIGTAIL.

5. LOW VOLTAGE CIRCUIT IS N.E.C. CLASS 2 WITH A CLASS 2

TRANSFORMER. 24V, 50/60 HZ SUPPLIED.

6. CONNECT FIELD WIRING IN GROUNDED RAIN TIGHT CONDUIT

TO 60 HZ FUSED DISCONNECT.

7. MOTOR FACTORY WIRED FOR CORRECT SPEED.

8. SEE FUSE LABEL ON UNIT FUSE BOX FOR FUSE SIZING AND

CLASSIFICATION.

9. WIRED FROM PL2 (6 & 9) GO TO THE MIXED AIR SENSOR ON

THE OPTIONAL ECONOMIZER.

10. Y2 IS USED ONLY FOR THE OPTIONAL ECONOMIZER.

11. REMOVE JUMPER FOR FIELD INSTALLED OCCUPANCY RELAY.

(J3)

BL

T2

T3

T1

COMP

WN 10

BL

O

COMP

24V

IRING DIAGRAM

W

26

27

28

CM 0218

Rheem RLKN-B073 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual