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]
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
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