Rheem RKKA User Manual

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RHEEM PACKAGE GAS/ELECTRIC

www.rheemac.ca

Rooftop

Heat/Cool

Available in Northern Alberta, Saskatchewan, Manitoba, and

Contact your local ECCO Sales Branch for pricing and

RKKA and RKNA

Models Only

RKKB Models Only

Northwestern Ontario.

for specifications check www.rheemac.ca.

RKKA and RKNA

Models Only

Single Phase

Models Only

ECCO is proud to be a member of:

RKKA Models Only

(RKNA)

RKKA Models Only

RKNB Model Only

Rated in Accordance with

A.R.I. Standard 210 and 360

(RKKB)

ASHRAE

American Society of

Heating, Refrigeration, and

Air Conditioning Engineers, Inc.

www.ashrae.com

HRAI

Heating, Refrigerating

and Air Conditioning

Institute of Canada

www.hrai.ca

HARDI

Heating, Airconditioning &

Refrigeration Distributors

International

www.hardinet.org

SMACNA

Sheet Metal & Air

Conditioning Contractors

National Association Inc.

www.smacna.org

SPIDA

Spiral Duct

Manufacturers

Association

www.spida.org

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 1

Heat/Cool

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKA SERIES — 3 – 7.5 TONS

Engineering Features

• AllmodelsfeatureCopeland®Scroll® compressors offering maximum

reliability, efficiency, and quiet operation. The 6 and 7.5 ton model features
two-stage cooling.

• Aluminizedsteelheatexchangerwithin-shotburnershelpseliminate

corrosion. Stainless steel heat exchangers optional.

• Integratedblower/burnercontrolboardwithbuilt-indiagnosticcapability

permits on-site troubleshooting.

• One-piecetopovertheindoorsectionwithdriplip,drawnpaintedbase
pan,and1"raisedflangesforsupply/returnairconnectionsprovidessuperiorwater

management.

• Convertiblehorizontalandverticalairflowdesignallowsmaximumfieldflexibilityand
minimizesinventoryrequirements.

• Standardfullperimeterforkable14gaugebaserailwithliftingholesforeasier

maneuvering and installations.

• Factoryinstalledone-inchthrowawayfilterwithprovisionsfortwo-inchfilterandtwo-

inch filters for 7.5 ton models.

• Directorbeltdriveoptionstoaccommodateawiderangeofdesignconditionsashigh

as 1.5 inches of external static pressure. 6 and 7.5 ton models available with belt
drive only.

• Easilyremovablefilter,blower,gasheat,andcompressor/controlaccesspanels

permits prompt service.

• Numberandcolorcodedwiringhelpsfacilitateserviceandmaintenance.

• Commoncabinetandcomponentsallowsforinstallationflexibilityandfewerpartsto

inventory.

• Standardfreezestatcontroloffersevaporatorcoilfreezeprotection.(Optionalfor

7.5 ton models).

• Standardhighandlowpressurecontrolsonhighefficiencymodelsandafactoryor

field installed option on standard efficiency models.

• Externallymountedrefrigerantgaugeportsforeasyservicediagnostics.

• Sideandbaseelectricpowerandgasconnectionentryhelpsminimizeroof

penetrations.

• Quickassemblycommonroofcurbshelpssavefieldlaborandmaximizesizeflexibility.

• Easytoinstall,plug-in,slip-in,100%fullymodulatingeconomizers.

• Qualitypowderpaintfinishofferslonglastingprotectionagainstextremeweather

conditions and is able to withstand 1000 HR salt spray test.

RKKA

– E.&O.E. – May not be in stock at all branches, if so please allow 10 days for delivery.

– All Prices F.O.B. Our Warehouse – Subject to Change Without Notice – All Taxes Extra –

2 www.eccohtg.com ECCO HEATING PRODUCTS LTD.

RKKA—A036 C K 08 E XXX

Economizer Option (See Next Page)

Factory Installed Options
(See Next Page)

Ignition System
E = Electric Ignition,

E = 1 Stage Gas Valve, NO

x

X = Electric Ignition,

E = 1 Stage Gas Valve

T = Electric Ignition, Two-Stage

X = Gas Valve (A085 Only)

Heating Capacity (MBH)
08 = 080,000 [23.5]
10 = 100,000 [29.3]
12 = 120,000 [35.2]
13 = 135,000 [39.6]

Drive Package
K = Direct Drive
L = Belt Drive
M = Belt Drive—High Static

Electrical Designation
C = 208-230 V, 3 PH, 60 Hz
D = 460 V, 3 PH, 60 Hz
Y = 575 V, 3 PH, 60 Hz

Cooling Capacity (BTUH) [kW]
036 = 36,000 [10.55]
042 = 42,000 [12.31]
048 = 48,000 [14.07]
060 = 60,000 [17.58]
072 = 72,000 [21.10]
073 = 72,000 [21.10]
085 = 85,000 [24.91]

Future Technical Variations

Design Series
A =1st Design

Efficiency Designation
K = Standard Efficiency (10 SEER)

ASHRAE 90.1-1989 Compliant

M = High Efficiency (12 SEER)

EnergyStar Compliant

Product Classification
K = Rooftop—Commercial

Tradebrand
R = Rheem Package Gas/Electric

[ ] Designates Metric Conversions

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Model Identification

RHEEM PACKAGE GAS/ELECTRIC

Effective Date: December 2006

Rooftop

Heat/Cool

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Heat/Cool

OPTIONS—RKKA- SERIES

Option Code

High and

Low Pressure

Low Ambient

Time Delay

AA No Options

Unwired

Convenience Outlet

Unfused Service

Disconnect

AH x

AK

BB x

Hail Guard

x

xBF

x

x

BU x

CB x x

BH x

x

x

x

BX

CP x

AC x

x

Side Flow

x

Reduced

Height

Baserails

x

x

Stainless
Steel Heat
Exchanger

xxDB x x

x

x

x

xBG

x

BV

x

x

x

x

xAJ

BS

CE x

xx

x

CA x

DA x x x

AE x

AL

BE x x

xxEB x x x

xAD

FACTORY INSTALLED OPTION CODES FOR RKKA
(3-5 TON AND 7.5 TON) [10.6-17.6 kW and 26.4 kW]
(A036, A042, A048, A060, A085)

Example: RKKA-A060CL13EXXX (where XX is factory installed option)
Example: No Options

RKKA-A060CL13E

Example: No option with factory installed economizer

RKKA-A060CL13EAAB

Example: Options with high and low pressure and hailguard, no factory installed economizer

RKKA-A060CL13EBBA

Example: Options same as above with factory installed economizer

RKKA-A060CL13EBBB

[ ] Designates Metric Conversions

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Factory Installed Option Codes

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RHEEM PACKAGE GAS/ELECTRIC

OPTIONS—RKKA- SERIES

Option Code Hail Guard

Unwired

Convenience Outlet

Unfused Service

Disconnect

Low Ambient

Time Delay

Reduced

Height

Baserails

AA No Options

x

xBH x

xCF x x

Stainless
Steel Heat
Exchanger

Side Flow

AJ

BV

x

x

x

x

DC x x x

AD x

x

x

x

BS x

xCG x x

x

xAK

BX x

AL

AH x

BC x

BG x x

AE

BF x x

FACTORY INSTALLED OPTION CODES FOR RKKA (6 TON) [21.1 kW]
(A073)

Example: RKKA-A073CL13EXXX (where XX is factory installed option)
Example: No Options

RKKA-A073CL13E

Example: No option with factory installed economizer

RKKA-A073CL13EAAB

Example: Options with hailguard, low ambient and time delay with no factory installed economizer

RKKA-A073CL13EBCA

Example: Options same as above with factory installed economizer

RKKA-A073CL13EBCB

[ ] Designates Metric Conversions

OPTIONS—RKMA- SERIES

Option Code Hail Guard

Unwired

Convenience Outlet

Unfused Service

Disconnect

Low Ambient

Time Delay

AA No Options

x

BS x

xDC x x x

Stainless
Steel Heat
Exchanger

x

Side Flow

x

AJ

CF

x

x x

AD x

x

x

BV x x

x

xAK

CG x

BC x

x

AH x

BF x x

BH x

AE

BG x x

FACTORY INSTALLED OPTION CODES FOR RKMA (6 TON) [21.1 kW]
(A072)

Example: RKMA-A060CL13EXXX (where XX is factory installed option)
Example: No Options

RKMA-A060CL13E

Example: No option with factory installed economizer

RKMA-A060CL13EAAB

Example: Options with stainless steel heat exchanger and no factory installed economizer

RKMA-A060CL13EAJA

Example: Options same as above with factory installed economizer

RKMA-A060CL13EAJB

No Economizer

Single Enthalpy Economizer

With Barometric Relief

A x
B x

ECONOMIZER SELECTION FOR RKKA & RKMA, RKMB & RKNB
(7.5 TO 15 TON) [26.4 TO 52.8 kW]

“x” indicates factory installed option.

[ ] Designates Metric Conversions

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Factory Installed Option Codes for RKKA (6 Ton) [21.1 kW] (A073)

Economizer Selection

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 5

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Effective Date: December 2006

Rooftop

Heat/Cool

Heat/Cool

Rooftop

RHEEM PACKAGE GAS/ELECTRIC

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Product Features

Evaporator Coil/Filter Access

• Returnairfilters,normallyprovided,are

removed in this photo.

• Non-corrosiveplastic
condensate pan

Effective Date: December 2006

Tubular Heat Exchanger

• Aluminizedsteel
(viewedfromsupply

air side panel.)

•Stainlesssteelavailable

Control Box Access

Blower Access

• Beltdrivemodelshown

(availableon3-phasemodelsonly.)

Heating Compartment

Access

Compressor Access

(3 to 6 ton Models)

Compressor Access

(7.5 ton Models)

• Dualcompressors
(availablein6and7.5ton

models only) provide
two-stage cooling.

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RHEEM PACKAGE GAS/ELECTRIC

1. Determine cooling and heating requirements at design conditions.

Example:

Total cooling capacity ........................43,600 BTUH [12.78 kW]

Sensible cooling capacity ..................34,000 BTUH [9.96 kW]

Heating capacity ................................96,000 BTUH [28.13 kW]

Condenser entering air ......................95°F [35°C]

Evaporator entering air ........................63°F [17°C] wb/76°F [24°C] db

Indoor air flow ....................................1600 CFM [755 L/s]

External static pressure......................1.1 in wg

Required efficiency ............................12 SEER

2. Select unit to meet cooling requirements.

Since total cooling is within the range of 4 ton [14.07 kW] unit and
requires 12 SEER efficiency level, enter cooling performance from the
RKKA-A048 at 95°F [35°C] outdoor temperature, 63°F [17°C] wb
entering indoor air, and 1600 CFM [755 L/s]:

Total capacity ....................................46,600 BTUH [13.66 kW]

Power input ........................................4.2 kW

And also, at 76°F [24°C] db indoor entering air, and using the formula
at the bottom of the table:

Sensible capacity ..............................36,646 BTUH [10.74 kW]

3. Select heating capacity of the unit.

In the general data tables, note that the heating capacity of the 4 ton
[14.07 kW] model with the 135,000 input heater can deliver 106,500
BTUH [31.21 kW], which is suitable for this application.

4. Determine blower speed and power to meet the system
requirements.

At the given external static pressure of 1.1 in wg, the belt model must
be selected. Enter the belt drive blower performance data at 1600
CFM [755 L/s] and 1.1 in wg ESP:

RPM ........1195

Watts........755

Drive ........M

5. Calculate indoor blower BTUH heat effect.

BTUH = Watts x 3.413 = 2577

6. Calculate net cooling capacities.

Net total cooling = 46,600 – 2577 = 44,023 BTUH [12.90 kW]
Net sensible cooling = 36,646 – 2577 = 34,069 BTUH [9.98 kW]

[ ] Designates Metric Conversions

SELECTION PROCEDURE EXAMPLE—RKKA/RKMA- SERIES

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Selection Procedure — Example

For more information, please contact your ECCO Sales Representative.

Effective Date: December 2006

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 7

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Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Side and Bottom Discharge — Natural Gas — 1 Phase

FREQUENCY(Hz) INPUT WEIGHT/
STOCK # MODEL COOLING VOLTAGE BTU/HR LBS. PRICE

 886112 RKKA-A036JK12E949 3TON 60-208-230 120,000 529 P.O.A.
 886116 RKKA-A048JK13E949 4TON 60-208-230 135,000 585 P.O.A.

Heat/Cool

Rooftop

RKKA Series

Note: For Technical Data see end of section.

Side and Bottom Discharge — Natural Gas — 3 Phase

FREQUENCY(Hz) INPUT WEIGHT/
STOCK # MODEL COOLING VOLTAGE BTU/HR LBS. PRICE

 886110 RKKA-A036CK12E949 3TON 60-208-230 120,000 529 P.O.A.
 886114 RKKA-A048CK13E949 4TON 60-208-230 135,000 585 P.O.A.
 886118 RKKA-A060CK13E949 5TON 60-208-230 135,000 585 P.O.A.
 886119 RKKA-A060CM13E949* 5TON 60-208-230 135,000 585 P.O.A.
 886121 RKKA-A073CM13E949* 6TON 60-208-230 135,000 585 P.O.A.

* Belt Drive – High Static

Note: For Technical Data see end of section.

With Economizer and Stainless Steel Heat Exchanger — 3 Phase

WEIGHT/
STOCK # MODEL TONS VOLTAGE BTU/HR LBS. PRICE

 886111 RKKA-A036CM12EAJB* 3 60-208-230 120,000 600 P.O.A.
 886102 RKKA-A036YL12EAJB 3 60-575 120,000 600 P.O.A.
 886113 RKKA-A048CM13EAJB* 4 60-208-230 135,000 650 P.O.A.
 886108 RKKA-A048YM13EAJB* 4 60-575 135,000 650 P.O.A.
 886117 RKKA-A060CM13EAJB* 5 60-208-230 135,000 650 P.O.A.
 886115 RKKA-A060YM13EAJB* 5 60-575 135,000 650 P.O.A.
 886123 RKKA-A073YM13EAJB* 6 60-575 135,000 685 P.O.A.

* Belt Drive – High Static

Note: For Technical Data see end of section.

Accessories

STOCK # MODEL DESCRIPTION PRICE

 886144 RXRD-KECM3 EconomizerwithSingleEnthalpy P.O.A.
 886150 RXRF-FBA1 ManualOutsideFreshAirDamper P.O.A.
 886160 RXRX-AAD01A LouverKit(2sides) P.O.A.
 886162 RXRX-AAD01B LouverKit(3sides) P.O.A.
 886170 RXAB-A02 HighPressureControlKit P.O.A.
 886172 RXAC-A02 LowPressureControlKit P.O.A.

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RHEEM PACKAGE GAS/ELECTRIC

*Voltage J = 208/230 VAC-1PH-60HZ D = 460 VAC-3PH-60HZ

C = 208/230 VAC-3PH-60HZ Y = 575 VAC-3PH-60HZ

NOTES: If a particular unit is to be converted to operate on LP (propane) for

elevations above 2000 ft. in Canada, the existing Natural Gas to LP
Conversion Kits for the subject models already contain the necessary
orifices and instructions to de-rate the input for 2000-4500 ft.
Canadian applications.

[ ] Designates Metric Conversions

Economizer is designed for downflow or horizontal applications.
Standard on RKKA-A073 and All RKMA- Models.

ACCESSORY EQUIPMENT

Accessory

Description

Model Application

3 to 6 Ton

[10.6 to 21.1 kW]

Accessory
Model No.
3 to 6 Ton

[10.6 to 21.1 kW]

Roofcurb Adapters RKKA-/RKMA-

RXRX-BBCDB21
RXRX-BBCDB22
RXRX-BBCDB23

Economizer with Single Enthalpy 

RKKA-/RKMA- RXRD-KECM3

Low Pressure Control RKKA-

RXAC-A02 

Time Delay RKKA-/RKMA- RXMD-B01

Low Ambient Control to 0°F [-18°C] RKKA-/RKMA- RXRZ-A18

Fresh Air Damper Manual RKKA-/RKMA- RXRF-FBA1

Fresh Air Damper Motorized RKKA-/RKMA- RXRF-FBB1

Rectangular to Round 18"

Duct Adapters for Concentric Diffuser

RKKA-/RKMA- RXMC-CB03

Rectangular to Round 20"

Duct Adapters for Concentric Diffuser

RKKA-/RKMA- RXMC-CB04

Concentric Diffuser 18" Step RKKA-/RKMA- RXRN-FA60

Concentric Diffuser 18" Flush RKKA-/RKMA- RXRN-FA70

Concentric Diffuser 20" Step RKKA-/RKMA- RXRN-FA65

Concentric Diffuser 20" Flush RKKA-/RKMA- RXRN-FA75

Roofcurb 14" RKKA-/RKMA- RXKG-BAD14
Roofcurb 24" RKKA-/RKMA- RXKG-BAD24

Rectangular to Round 16" Side RKKA-/RKMA- RXMC-BB01

Louver Kit (3 Sides)

RKKA-A048/A060/073

All RKMA- Models

RXRX-AAD01B

High Pressure Control RKKA-

RXAB-A02 

Louver Kit (2 Sides) RKKA-A036/A042 RXRX-AAD01A

Factory Installed

3 to 6 Ton

[10.6 to 21.1 kW]

No

Yes

Yes
Yes
Yes

No
No

No

No

No
No
No
No

No
No

No

Yes

Yes

Yes

LP Conversion Kits for use with

White Rodgers Gas Valve 

RKKA-/RKMA- RXGJ-EP84W

No

LP Conversion Kits for use with

Honeywell Gas Valve 

RKKA-/RKMA- RXGJ-EP85H

No

Dual Enthalpy Kit RKKA-/RKMA- RXRX-AV02 No
CO2Sensor Only RKKA-/RKMA- RXRX-AR02 No

Power Exhaust RKKA-/RKMA- RXRX-BFF04C No

Canadian High Altitude Kit

(for Natural Gas Only)



RKKA-/RKMA- RXRX-AH01 No

Accessory
Model No.

6 to 7.5 Ton

[21.1 to 26.4 kW]

RXRX-CCCE50

RXRD-KCCM3

RXAC-A05 

RXMD-B04
RXRZ-A85

RXRF-FCA1
RXRF-FCB1

N/A

RXMC-CC04

N/A

N/A
RXRN-FA65
RXRN-FA75

RXKG-BAD14
RXKG-BAD24

N/A

RXRX-AAD01B

RXAB-A05 

N/A

RXGJ-EP84W

RXGJ-EP85H

RXRX-AV02
RXRX-AR01

RXRX-BFF03C

RXRX-AH01

Factory Installed

6 to 7.5 Ton

[21.1 to 26.4 kW]

No

Yes

Yes
Yes
Yes

No
No

No

No

No
No
No
No

No
No

No

Yes

Yes

No

No

No

No
No
No

No

LP Conversion Kits for use with

Two-Stage Gas Valve 

RKKA-A085**13T RXGJ-EP86W

No

RXGJ-EP86W No

ACCESSORIES

RKKA SERIES — 3 – 7.5 TONS (cont’d)

Accessory Equipment

Effective Date: December 2006

Rooftop

Heat/Cool

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RHEEM PACKAGE GAS/ELECTRIC

UNIT FEATURES & BENEFITS—RKKB/RKMB/RKNB- SERIES

Rheem Package equipment is designed from the ground up with
the latest features and benefits required to compete in today’s
market. The clean design stands alone in the industry and is a
testament to the quality, reliability, ease of installation and ser­viceability that goes into each unit. Outwardly, the large Rheem
“B-series” label ( ) identifies the brand to the customer.

The sheet-metal cabinet ( ) uses nothing less than 18-gauge
material for structural components with an underlying coat of
G90. To ensure the leak-proof integrity of these units, the design
utilizes a one-piece top with a 1/8" drip lip ( ), gasket-protected
panels and screws. The Rheem hail guard ( ) is its trademark,
and sets the standard for coil protection in the industry. Every
Rheem package unit uses the toughest finish in the industry,
using electro deposition baked-on enamel tested to withstand a
rigorous 1000-hour salt spray test, per ASTM B117.

Anything built to last must start with the right foundation. In this
case, the foundation is 14-gauge, commercial-grade, full-perime­ter base rails ( ), which integrate fork slots and rigging holes to
save set-up time on the job site. The base pan is stamped, which
forms a 1-1/8" flange around the supply and return opening and
has eliminated the worry of water entering the conditioned space
( ). The drainpan ( ) is made of material that resists the
growth of harmful bacteria and is sloped for the latest IAQ bene­fits. The insulation has been placed on the underside of the
basepan, removing areas that would allow for potential moisture
accumulation, which can facilitate growth of harmful bacteria. All
insulation is secured with both adhesive and mechanical fasten­ers, and all edges are hidden.

During development, each unit was tested to U.L. 1995, ANSI

21.47, ARI 340-370 and other Rheem-required reliability tests.
Rheem adheres to stringent IS0 9002 quality procedures, and
each unit bears the U.L. and ARI certification labels located on
the unit nameplate ( ). Contractors can rest assured that when
a Rheem package unit arrives at the job, it is ready to go with a
factory charge and quality checks. Each unit also proudly dis­plays the “Made in the USA” designation.

Access to all major compartments is from the front of the unit,
including the filter and electrical compartment, blower compart­ment, furnace section, and outdoor section. Each panel is perma­nently embossed with the compartment name (control/filter
access, blower access and furnace access).

Electrical and filter compartment access is through a large, tool­less, hinged-access panel. On the outside of the panel is the unit
nameplate, which contains the model and serial number, electri­cal data and other important unit information.

The unit charging chart is located on the inside of the electrical
and filter compartment door. Electrical wiring diagrams are found
on the control box cover,
which allows contractors
to move them to more
readable locations. To
the right of the control
box the model and serial
number can be found.
Having this information
on the inside will assure
model identification for
the life of the product.
The production line qual­ity test assurance label is
also placed in this loca­tion ( ). The two-inch
throwaway filters ( ) are
easily removed on a
tracked system for easy
replacement.

10

9

8

7

6

5

4

3

2

1

6

6

7

9

10

2

8

1

4

3

5

RKKB SERIES — 7.5 – 12.5 TONS

Features

Heat/Cool

Rooftop

Effective Date: December 2006

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RHEEM PACKAGE GAS/ELECTRIC

UNIT FEATURES & BENEFITS—RKKB/RKMB/RKNB- SERIES

Inside the control box ( ), each electri­cal component is clearly identified with
a label that matches the component to
the wire diagram for ease of trouble
shooting. All wiring is numbered on
each end of the termination and color­coded to match the wiring diagram. The
integrated furnace control, used to con­trol furnace operation, incorporates a
flashing LED troubleshooting device.
Flash codes are clearly outlined on the
unit wiring diagram. The control trans­former has a low voltage circuit breaker
that trips if a low voltage electrical short
occurs. There is a blower contactor
and compressor contactor for each
compressor.

For added convenience in the field, a
factory-installed convenience outlet and
disconnect ( ) are available. Low and
High voltage can enter either from the
side or through the base. Low-voltage
connections are made through the low­voltage terminal strip. For ease of
access, the U.L.-required low voltage
barrier can be temporarily removed for
low-voltage termination and then rein­stalled. The high-voltage connection is
terminated at the number 1 compressor
contactor. The suggested mounting for
the field-installed disconnect is on the
exterior side of the electrical control box.

To the right of the electrical and filter
compartment are the externally
mounted gauge ports, which are perma­nently identified by embossed wording
that clearly identifies the compressor
circuit, high pressure connection and
low pressure connection ( ). With the
gauge ports mounted externally, an

accurate diagnostic of system operation can be performed
quickly and easily.

The blower compartment is to the right of the gauge ports and
can be accessed by removing 5/16" washer-head screws. This
panel is not hinged to assure a water-tight fit with the unit. To
allow easy maintenance of the blower assembly, the entire
assembly easily slides out by removing two 3/8" screws from the
blower retention bracket. The adjustable motor pulley ( ) can
easily be adjusted by loosening the bolts on either side of the
motor mount. Removing the bolts allows for easy removal of the
blower pulley by pushing the blower assembly up to loosen the
belt. Once the belt is removed, the motor sheave can be adjusted
to the desired number of turns, ranging from 0 to 6 turns open.
Where the demands for the job require high static, Rheem has
high-static drives available that deliver nominal airflow up to 2" of
static. By referring to the airflow performance tables listed in the
installation instructions, proper static pressure and CFM require­ments can be dialed in. The scroll housing ( ) and blower scroll
provide quiet and
efficient airflow.
The blower
sheave is secured
by an “H” bushing
which firmly
secures the pulley
to the blower shaft
for years of trou­ble-free operation.
The “H” bushing
allows for easy
removal of the
blower pulley from
the shaft, as
opposed to the
use of a set screw, which can score the shaft, creating burrs that
make blower-pulley removal difficult.

15

14

13

12

11

10

13

11

12

14

15

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Features (cont’d)

Effective Date: December 2006

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 11

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RHEEM PACKAGE GAS/ELECTRIC

UNIT FEATURES & BENEFITS—RKKB/RKMB/RKNB- SERIES

Also inside the blower compart­ment is the low-ambient control
( ), low-pressure switch ( ),
high-pressure switch ( )
and freeze stat refrigerant safety
device ( ). The low-ambient
control allows for operation of the
compressor down to 0 degrees
ambient temperature by cycling
the outdoor fans on high pressure.
The high-pressure switch will
shut off the compressors if
pressures exceeds, 450 PSIG
are detected, this may occur if
the outdoor fan motor fails. The
low-pressure switch shuts off
the compressors if low pressure
is detected due to loss of
charge. The freeze stat protects
the compressor if the evapora­tor coil gets too cold (below
freezing) due to low airflow. Each factory-installed option is
brazed into the appropriate high or low side and wired appropri­ately. Use of polarized plugs and sharder fittings allow for easy
field installation.

Inside the blower compartment the interlaced evaporator can
also be viewed. The evaporator uses enhanced fin technology for
maximum heat transfer. The cap-tube metering device assures
even distribution of refrigerant throughout the evaporator.

Wiring throughout the unit is neatly bundled and routed. Where
wire harnesses go through the condenser bulkhead or blower
deck, a molded wire harness assembly ( ) provides an air-tight
and water-tight seal, and provides strain relief. Care is also taken
to tuck raw edges of insulation behind sheet metal to improve
indoor air quality.

The furnace compartment contains the latest furnace technology
on the market. The draft inducers ( ) draw the flame from the
Rheem exclusive in-shot burners ( ) into the aluminized tubular
heat exchanger ( ) for clean, efficient gas heat. Stainless steel
heat exchangers can be factory installed for those applications
that have high fresh-air requirements, or applications in corrosive
environments. Each furnace is equipment with a two-stage gas
valve ( ), which provides two stages of gas heat input. The first
stage operates at 50% of the second stage (full fire). 81% steady
state efficiency is maintained on both first and second stage by
staging the multiple inducers to optimize the combustion airflow
and maintain a near stioceometric burn at each stage.

The direct spark igniter ( ) assures reliable ignition in the most
adverse conditions. This is coupled with remote flame sense ( )
to assure that the flame has carried across the entire length of
the burner assembly. Gas supply can be routed from the side or
up through the base.

Each furnace has the following safety devices to assure consis­tent and reliable operation after ignition:

• Pressures switches ( ) to assure adequate combustion airflow
before ignition.

• Rollout switches ( ) to assure no obstruction or cracks in the
heat exchanger.

• A limit device that protects the furnace from over-temperature
problems.

28

27

26

25

24

23

22

21

20

19

18

17

16

18

19

24

21

21

26

27

27

25

28

28

22

23

22

17

16

20

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Features (cont’d)

Heat/Cool

Rooftop

Effective Date: December 2006

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RHEEM PACKAGE GAS/ELECTRIC

UNIT FEATURES & BENEFITS—RKKB/RKMB/RKNB- SERIES

The compressor
compartment
houses the heart­beat of the unit. The
Copeland-compliant
scroll compressor
( ) is known for its
long life, and for
reliable, quiet, and
efficient operation.
The suction and
discharge lines are
designed with shock
loops ( ) to
absorb the strain
and stress that the
starting torque,
steady state opera­tion, and shut down
cycle impose on the
refrigerant tubing.
Each compressor
and circuit is inde­pendent for built-in
redundancy, and each circuit is clearly marked throughout the
system. Each unit has two stages of efficient cooling operation,
first stage is approximately 50% of second stage.

The condenser fan motor ( ) can easily be accessed and main­tained through the blower compartment. The polarized plug con­nection allows the motor to be changed quickly and eliminates
the need to snake wires through the unit.

The outdoor coil uses the latest enhanced fin design ( ) for the
most effective method of heat transfer. The outdoor coil is pro­tected by louvered panels, which allow unobstructed airflow while
protecting the unit from both Mother Nature and vandalism.

Each unit is designed
for both downflow or
horizontal applications
( ) for job configura­tion flexibility. The
return air compartment
can also contain an
economizer ( ). Two
models exits, one for
downflow applications, and one
for horizontal applications. Each unit is
pre-wired for the economizer to allow quick
plug-in installation. The economizer is also available
as a factory-installed option. Power Exhaust is easily field­installed. The economizer, which provides free cooling when
outdoor conditions are suitable and also provides fresh air to
meet local requirements, comes standard with single enthalpy
controls. The controls can be upgraded to dual enthalpy easily in
the field. The direct drive actuator combined with gear drive
dampers has eliminated the need for linkage adjustment in the
field. The economizer control has a minimum position setpoint,
an outdoor-air setpoint, a mix-air setpoint, and a CO

2

setpoint.
Barometric relief is standard on all economizers. The power
exhaust is housed in the
barometric relief opening
and is easily slipped in with
a plug-in assembly.

The Rheem roofcurb ( ) is
made for toolless
assembly at the
jobsite by sequen­tially engaging the
corner brackets into
the adjacent curb
sides ( ), which
makes the assembly
process quick and easy.

36

35

34

33

32

31

30

29

29

31

32

30

29

35

34

34

33

30

36

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Features (cont’d)

Effective Date: December 2006

Rooftop

Heat/Cool

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Heat/Cool

RKKB—A090 C L 15 E XXX

Economizer Option (See Next Page)

Factory Installed Options
(See Next Page)

Ignition System
E = Electric

Heating Capacity (MBH)
15 = 150,000 [44.0]
22 = 225,000 [65.9]
25 = 252,000 [73.9]

Drive Package
L = Belt Drive
M = Belt Drive—High Static
N = Belt Drive—RKNB- A090 Only

Electrical Designation
C = 208-230 V, 3 PH, 60 Hz
D = 460 V, 3 PH, 60 Hz
Y = 575 V, 3 PH, 60 Hz
P = 200-220 V, 3 PH, 50 Hz
N = 380-415 V, 3 PH, 50 Hz

Cooling Capacity (BTUH) [kW]
090 = 90,000 [26.38]
102 = 102,000 [29.89]
120 = 120,000 [35.17]
150 = 150,000 [43.96]
181 = 180,000 [52.75]

Future Technical Variations

Design Series
B = “B Series Cabinet”

Efficiency Designation
K = Standard Efficiency

ASHRAE 90.1-1989 Compliant

M = High Efficiency

ASHRAE 90.1-1999 Compliant

N = Super High Efficiency

EnergyStar Compliant

Product Classification
K = Rooftop—Commercial

Tradebrand
R = Rheem Packaged Gas/Electric

[ ] Designates Metric Conversions

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Model Identification

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RHEEM PACKAGE GAS/ELECTRIC

OPTIONS—RKKB/RKMB/RKNB- SERIES

Option Code

High and

Low Pressure

Low Ambient

Time Delay
Freeze Stat

Stainless Steel

Heat Exchanger

AA No Options

Unwired Convenience Outlet

AD
AF x
AH x

Hail Guard

x

xBB x

x

x

BG x

BN x x

CD x x

Unfused Services Disconnect

xDH x x x
xEA x x x x

xBF

x

x

x

BK x x

CA x x

DG x x x

AJ x

AC x

FACTORY INSTALLED OPTION CODES FOR KKB, KMB & KNB
(7.5 TO 12.5 TON) [26.4 TO 44.0 kW]

Option Code

Low Ambient

Time Delay
Freeze Stat

Hail Guard

Stainless Steel
Heat Exchanger

No OptionsAA

Unfused Services Disconnect

xBD x

x

x

x

BG x

Unwired Convenience Outlet

CJ x

x

x

AF x

BF

DL x x x

x

x

BN x x

CQ x x

AH x
AJ x

xAD

FACTORY INSTALLED OPTION CODES FOR KKB-A181

“x” indicates factory installed option.

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Factory Installed Option Codes

Effective Date: December 2006

Rooftop

Heat/Cool

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Heat/Cool

OPTIONS—RKKB/RKMB/RKNB- SERIES

No Economizer

Single Enthalpy Economizer

With Barometric Relief

A x
B x

ECONOMIZER SELECTION FOR KKB, KMB & KNB
(7.5 TO 15 TON) [26.4 TO 52.8 kW]

“x” indicates factory installed option.

Instructions for Factory Installed Option(s) Selection

Note: Three characters following the model number will be utilized to designate a factory-installed option or

combination of options. If no factory option(s) is required, nothing follows the model number.

Step 1. After a basic rooftop model is selected, choose a two-character option code from the FACTORY

INSTALLED OPTION SELECTION TABLE.

Proceed to Step 2.

Step 2. The last option code character is utilized for factory-installed economizers. Choose a character from the

FACTORY INSTALLED ECONOMIZER SELECTION TABLE.

Examples:

RKKB-A120CL22E..............................this unit has no factory installed options.

RKKB-A120CL22EBBA ......................this unit is equipped with high and low pressure switches and hail guards.

RKMB-A120CL22EAHA......................this unit is equipped with a convenience outlet and service disconnect.

RKMB-A120CL22EAHB......................this unit is equipped as above and includes an Economizer

with single enthalpy sensor and with barometric relief.

RKMB-A120CL22EAAB ....................this unit is equipped with an Economizer with single enthalpy sensor and

Barometric Relief.

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Economizer Selection

16 www.eccohtg.com ECCO HEATING PRODUCTS LTD.

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RHEEM PACKAGE GAS/ELECTRIC

INTRODUCTION

These quality features are included in the Rheem
Gas Heat / Electric Cooling Package Unit

1. Twin Copeland Scroll Compressors for two-stage cooling

2. Tubular heat exchanger for long-life

3. Solid state furnace controls with on-board diagnostics

4. Forkable base rails for easy handling

5. One-piece top, one-piece drawn indoor base pan for superior water management

6. Easy access factory installed filters

7. Slide-out blower assembly for easy maintenance

8. Two-stage gas valve and direct spark ignition for efficiency and reliability

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Product Features

Effective Date: December 2006

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 17

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RHEEM PACKAGE GAS/ELECTRIC

SELECTION PROCEDURE EXAMPLE—RKKB/RKMB/RKNB- SERIES

To select an RKKB- Cooling and Heating unit to meet a job
requirement, follow this procedure, with example, using data sup­plied in this specification sheet.

1. DETERMINE COOLING AND HEATING REQUIREMENTS
AND SPECIFIC OPERATING CONDITIONS FROM PLANS
AND SPECS.

Example:

Total cooling capacity— 106,000 BTUH [31.26 kW]
Sensible cooling capacity— 82,000 BTUH [24.03 kW]
Heating capacity— 150,000 BTUH [43.96 kW]
*Condenser Entering Air— 95°F [35°C] DB
*Evaporator Mixed Air Entering—65°F [18°C] WB;

78°F [26°C] DB
*Indoor Air Flow (vertical)— 3600 CFM [1699 L/s]
*External Static Pressure— .40 in. WG

2. SELECT UNIT TO MEET COOLING REQUIREMENTS.

Since total cooling is within the range of a nominal 10 ton
[35.2 kW] unit, enter cooling performance table at 95°F [35°C]
DB condenser inlet air. Interpolate between 63°F [2°C] and
67°F [19°C] to determine total and sensible capacity and
power input for 65°F [18°C] WB evap inlet air at 4000 CFM
[1888 L/s] indoor air flow (table basis):

Total Capacity = 119,500 BTUH [35.02 kW]
Sensible Capacity = 101,200 BTUH [29.66 kW]
Power Input (Compressor and Cond. Fans) = 11,650 watts

Use formula [1.10 x CFM x (1 – DR) x (dbE – 80)] in note to
determine sensible capacity at 80°F [26.7°C] DB evaporator
entering air:

Sensible Capacity = 94,230 BTUH [27.62 kW]

3. CORRECT CAPACITIES OF STEP 2 FOR
ACTUAL AIR FLOW.

Select factors from airflow correction table at 3600 CFM
[1699 L/s] and apply to data obtained in step 2 to obtain
gross capacity:

Total Capacity, 119,500 x .98 = 117,110 BTUH [34.32 kW]
Sensible Capacity, 94,230 x .95 = 89,519 BTUH [26.24 kW]
Power Input 11,650 x .99 = 11,534 Watts

These are Gross Capacities, not corrected for blower motor
heat or power.

4. DETERMINE BLOWER SPEED AND WATTS TO MEET
SYSTEM DESIGN.

Enter Indoor Blower performance table at 3600 CFM [1699 L/s].
Total ESP (external static pressure) per the spec of .40 in.
includes the system duct and grilles. Add from the table “Com­ponent Air Resistance,” .076 for wet coil, .13 for vertical air flow,
for a total selection static pressure of .606 (.6) inches of water,
and determine:

RPM = 796
WATTS = 1,650
DRIVE = L (standard 2 H.P. motor)

5. CALCULATE INDOOR BLOWER BTUH HEAT EFFECT
FROM MOTOR WATTS, STEP 4.

BTUH = 1,650 x 3.412 = 5,630

6. CALCULATE NET COOLING CAPACITIES, EQUAL TO
GROSS CAPACITY, STEP 3, MINUS INDOOR BLOWER
MOTOR HEAT.

Net Total Capacity = 117,110 – 5,630 =

111,480 BTUH [32.67 kW]

Net Sensible Capacity = 89,519 – 5,630 =

83,889 BTUH [24.59 kW]

7. CALCULATE UNIT INPUT AND JOB EER.

Total Power Input = 11,534 (step 3) + 1,650

(step 4) = 13,184 Watts

EER =

Net Total BTUH [kW] (step 6) =111,480

= 8.46

Power Input, Watts (above) 13,184

8. SELECT UNIT HEATING CAPACITY.

From Physical Data Table read that gas heating output (input
rating x efficiency) is:

Heating Capacity = 182,300 BTUH [53.43 kW]

*NOTE: These operating conditions are typical of a commercial applica-

tion in a 95°F/79°F [35°C/26°C] design area with indoor design
of 76°F [24°C] DB and 50% RH and 10% ventilation air, with
the unit roof mounted and centered on the zone it conditions
by ducts.

[ ] Designates Metric Conversions

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Selection Procedure — Example

Heat/Cool

Rooftop

Effective Date: December 2006

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Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Side and Bottom Discharge — Natural Gas — 3 Phase

FREQUENCY(Hz) INPUT WEIGHT/
STOCK # MODEL COOLING VOLTAGE BTU/HR LBS. PRICE

 886122 RKKB-A090CM22E949* 7.5TON 60-208-230 225,000 1098 P.O.A.
 886124 RKKB-A120CM22E949* 10TON 60-208-230 225,000 1051 P.O.A.
 886130 RKKB-A150CL25E949 12.5TON 60-208-230 252,000 1162 P.O.A.

* Belt Drive — High Static

Note: For Technical Data see end of section.

With Economizer and Stainless Steel Heat Exchanger — 3 Phase

FREQUENCY(Hz) INPUT WEIGHT/
STOCK # MODEL COOLING VOLTAGE BTU/HR LBS. PRICE

 886128 RKKB-A090CM22EAJB* 7.5TON 60-208-230 225,000 600 P.O.A.
 886129 RKKB-A090YM22EAJB* 7.5TON 60-575 225,000 600 P.O.A.
 886125 RKKB-A120CM22EAJB* 10TON 60-208-230 225,000 600 P.O.A.
 886127 RKKB-A120YM22EAJB* 10TON 60-575 225,000 600 P.O.A.

* Belt Drive — High Static

Note: For pricing on RKKB Model 12.5 ton units, please contact your local ECCO Sales

Representative.
For Technical Data see end of section.

Accessories

STOCK # MODEL DESCRIPTION PRICE

 886180 RXRD-KDCM3 Economizerw/singleenthalpy P.O.A.
   FullyModulating(Outdoor)

 886164 RXRX-AAD01C OutdoorCoilLouverKit P.O.A.
 886174 RXRX-AK01 High/LowPressureSwitchKit P.O.A.

Note: For Technical Data see end of section.

Rooftop

Heat/Cool

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ECCO HEATING PRODUCTS LTD. www.eccohtg.com 19

Heat/Cool

ACCESSORIES

FIELD INSTALLED ACCESSORY EQUIPMENT

Accessory

Model

Number

Installed

Weight

Lbs. [kg]

Dual Enthalpy Kit

Economizer w/Single Enthalpy RXRD-KDCM3 81 [36.7]

RXRX-AV02 1 [.5]
Horizontal Economizer w/Single Enthalpy RXRD-LDCM3 89 [40.4]
Carbon Dioxide Sensor (Wall Mount) RXRX-AR02 2 [1.0]
Power Exhaust RXRX-BFF02 (C,D,Y) 38 [17.2]
Manual Fresh Air Damper (Horizontal Return Mounted) RXRF-FDA1 21 [9.5]

Shipping

Weight

Lbs. [kg]

90 [40.8]

1 [.5]

94 [42.6]

3 [1.4]
43 [19.5]
26 [11.8]

Factory

Installation

Available?

Yes

No
No
No
No
No

Motorized Fresh Air Damper RXRF-FDB1 43 [19.5] 38 [17.2] No

Roofcurb, 14" RXKG-BAE14 90 [40.8] 85 [38.5] No
Roofcurb, 24" RXKG-BAE24 140 [63.5] 135 [61.2] No

Roofcurb Adapters
(See Chart on Page 78 for Application)

RXRX-CDCE50 300 [136.1] 290 [131.5] No
RXRX-CFCE54 325 [147.4] 315 [142.9] No
RXRX-CFCE56 350 [158.8] 340 [154.2] No

Concentric Diffuser (Step-Down, 20" Round) RXRN-FA65

139 [63.0] 60 [27.2] No

Concentric Diffuser (Step-Down, 18 x 32) RXRN-AA66 247 [112.0] 227 [103.0] No

Concentric Diffuser (Flush, 18 x 28) RXRN-AA71 170 [77.1] 155 [70.3] No
Concentric Diffuser (Flush, 18 x 32) RXRN-AA76 176 [79.8] 161 [73.0] No
Downflow Transition (Rect. to Round)

RXMC-CD04 

15 [6.8] 13 [5.9] No

Downflow Transition (Rect. to Rect., 18 x 28)

RXMC-CE05



18 [8.2] 16 [7.3] No

Compressor Time-Delay Relay Kit RXMD-A04 2 [1.0] 1 [.5] Yes
Low-Ambient Control Kit RXRZ-A90 3 [1.4] 2 [1.0] Yes
High/Low Pressure Switch Kit RXRX-AK01 5 [2.3] 4 [1.8] Yes
Freeze-Stat Kit RXRX-AM01 1 [.5] 0.5 [.2] Ye s
Outdoor Coil Louver Kit RXRX-AAD01C 29 [11.3] 26 [11.8] Ye s

Downflow Transition (Rect. to Rect., 18 x 32)

RXMC-CF06 

20 [9.1] 18 [8.2] No

RXRX-CGCC12

450 [204.1] 410 [186.0] No

Concentric Diffuser (Step-Down, 18 x 28) RXRN-AA61 200 [90.7] 185 [83.9] No

Concentric Diffuser (Flush, 20" Round) RXRN-FA75 54 [24.4] 42 [19.0] No

38 [17.2] NoManual Fresh Air Damper (Left Panel Mounted) RXRF-GDA1 31 [14.1]

Motor Kit for RXRF-HDA1 RXRX-AT02 35 [15.9] 27 [12.2] No

Unwired Convenience Outlet RXRX-AN01 2 [1.0] 1.5 [.7] Ye s
Unfused Service Disconnect RXRX-AP01 10 [4.5] 9 [4.1] Yes

NOTES: Used with RXRN-AA61 and RXRN-AA71 concentric diffusers.

Used with RXRN-AA66 and RXRN-AA76 concentric diffusers.
Please refer to conversion kit index provided with the unit for LP conversion kit.

[ ] Designates Metric Conversions

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKKB SERIES — 7.5 – 12.5 TONS (cont’d)

Accessories — Field Installed

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RKKB Series

RHEEM PACKAGE GAS/ELECTRIC

ENGINEERING FEATURES

ENGINEERING FEATURES

RKNA- Series Package Gas Electric Units

1. All models feature Copeland®Scroll®compressors offering maximum reliability, efficiency, and quiet operation.

2. Aluminized steel heat exchanger with in-shot burners helps eliminate corrosion. Stainless steel heat
exchangers optional.

3. Integrated blower/burner control board with built-in diagnostic capability permits on-site trouble shooting.

4. One-piece top over the indoor section with drip lip, drawn painted base pan, and 1" [25.4 mm] raised
flanges for supply/return air connections provides superior water management.

5. Convertible horizontal and vertical airflow design allows maximum field flexibility and minimizes inventory
requirements.

6. Standard full perimeter forkable 14 gauge baserail with lifting holes for easier maneuvering and installations.

7. Factory installed one-inch [25.4 mm] throw away filter with provisions for two-inch [50.8 mm] filter.

8. Direct or belt drive options to accommodate a wide range of design conditions as high as 1.5 inches
[.37 kPa] of external static pressure.

9. Easily removable filter, blower, gas heat, and compressor/control access panels permits prompt service.

10. Number and color coded wiring helps facilitate service and maintenance.

11. Common cabinet and components allows for installation flexibility and fewer parts to inventory.

12. Standard freezestat control offers evaporator coil freeze protection.

13. Factory or field installed high and low pressure controls.

14. Externally mounted refrigerant gauge ports for easy service diagnostics.

15. Side and base electric power and gas connection entry helps minimize roof penetrations.

16. Quick assembly common roof curbs helps save field labor and maximize size flexibility.

17. Easy to install, plug-in, slip-in, 100% fully modulating economizers.

18. Quality powder paint finish offers long lasting protection against extreme weather conditions and is able to
withstand 1000 HR salt spray test.

[ ] Designates Metric Conversions

R K N A—A 036 J K 08 E XXX

Economizer Option (See Next Page)

Factory Installed Options
(See Next Page)

Ignition System
E = Electric Ignition,

E = 1 Stage Gas Valve

X = Electric Ignition,

E = 1 Stage Gas Valve, NO

x

Heating Capacity (MBH)
08 = 080,000 [23.5]
10 = 100,000 [29.3]
12 = 120,000 [35.2]
13 = 135,000 [39.6]

Drive Package
K = Direct Drive
L = Belt Drive
M = Belt Drive—High Static

Electrical Designation
C = 208-230 V, 3 PH, 60 Hz
D = 460 V, 3 PH, 60 Hz
J = 208-230V, 1 PH, 60 Hz

Cooling Capacity (BTUH) [kW]
036 = 36,000 [10.55]
042 = 42,000 [12.31]
048 = 48,000 [14.07]
060 = 60,000 [17.58]

Future Technical Variations

Design Series
A =1st Design

Efficiency Designation
N = Super High Efficiency (13 SEER)

Product Classification
K = Rooftop—Commercial

Tradebrand
R = Rheem Package Gas Electric

[ ] Designates Metric Conversions

RKNA SERIES — 3 – 5 TONS – 13 SEER

Engineering Features

Effective Date: December 2006

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 21

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RKNA SERIES

RHEEM PACKAGE GAS/ELECTRIC

OPTIONS—RKNA- SERIES

Option Code

High and

Low Pressure

Low Ambient

Time Delay

AA No Options

Unwired

Convenience Outlet

Unfused Service

Disconnect

AH x

AK

BB x

Hail Guard

x

xBF

x

x

BU x

CB x x

BH x

x

x

x

BX

CP x

AC x

x

Side Flow

x

Reduced

Height

Baserails

x

x

Stainless

Steel Heat

Exchanger

xxDB x x

x

x

x

xBG

x

BV

x

x

x

x

xAJ

BS

CE x

xx

x

CA x

DA x x x

AE x

AL

BE x x

xxEB x x x

xAD

FACTORY INSTALLED OPTION CODES FOR RKNA (3-5 TON) [10.6-17.6 kW]
(A036, A042, A048, A060)

Economizer Codes
A = No Economizer
B = Economizer with Single Enthalpy

Example: RKNA-A060JK13EXX

X (where XX is factory installed option)

Example: No Options

RKNA-A060JK13E

Example: No option with factory installed economizer

RKNA-A060JK13EAAB

Example: Options with stainless steel heat exchanger and no factory installed economizer

RKNA-A060JK13EAJA

Example: Options same as above with factory installed economizer

RKNA-A060JK13EAJB

[ ] Designates Metric Conversions

RKNA SERIES — 3 – 5 TONS – 13 SEER

Factory Installed Option Codes for RKNA (3-5 Ton) [10.6-17.6 kW] (A036, A042, A048, A060)

Heat/Cool

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22 www.eccohtg.com ECCO HEATING PRODUCTS LTD.

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

INTRODUCTION

These quality features are included in the
Rheem Package Gas Electric Unit

Evaporator Coil/Filter Access

• Return air filters, normally
provided, are removed in
this photo.

Tubular Heat Exchanger

• Aluminized steel
(viewed from supply
air side panel.)

• Stainless steel available

Heating Compartment Access

Blower Access

• Belt drive model shown.
(Available on 3-phase models only.)

Compressor Access

(3 to 5 Ton [10.6 to 17.6 kW] Models)

Control Box Access

• Non-corrosive plastic
condensate pan

[ ] Designates Metric Conversions

RKNA SERIES — 3 – 5 TONS – 13 SEER (cont’d)

Product Features

Effective Date: December 2006

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 23

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Heat/Cool

1. Determine cooling and heating requirements at design conditions.

Example:

Total cooling capacity ........................43,600 BTUH [12.78 kW]

Sensible cooling capacity ..................34,000 BTUH [9.96 kW]

Heating capacity ................................96,000 BTUH [28.13 kW]

Condenser entering air ......................95°F [35°C]

Evaporator entering air ......................63°F [17°C] wb/76°F [24°C] db

Indoor air flow ....................................1600 CFM [755 L/s]

External static pressure......................1.1 in wg

Required efficiency ............................13 SEER

2. Select unit to meet cooling requirements.

Since total cooling is within the range of 4 ton [14.07 kW] unit and
requires 13 SEER efficiency level, enter cooling performance from the
RKNA-A048 at 95°F [35°C] outdoor temperature, 63°F [17°C] wb
entering indoor air, and 1550 CFM [732 L/s]:

Total capacity ....................................47,300 BTUH [732 kW]

Power input ........................................3.5 kW

And also, at 76°F [24°C] db indoor entering air, and using the formula
at the bottom of the table:

Sensible capacity ..............................41,708 BTUH [12.22 kW]

3. Select heating capacity of the unit.

In the general data tables, note that the heating capacity of the 4 ton
[14.07 kW] model with the 135,000 input heater can deliver 106,500
BTUH [31.21 kW], which is suitable for this application.

4. Determine blower speed and power to meet the system
requirements.

At the given external static pressure of 1.1 in wg, the belt model must
be selected. Enter the belt drive blower performance data at 1600
CFM [755 L/s] and 1.1 in wg ESP:

RPM ........1195

Watts........755

Drive ........M

5. Calculate indoor blower BTUH heat effect.

BTUH = Watts x 3.413 = 2577

6. Calculate net cooling capacities.

Net total cooling = 47,300 – 2577 = 44,723 BTUH [13.10 kW]
Net sensible cooling = 41,708 – 2577 = 39,131 BTUH [11.47 kW]

[ ] Designates Metric Conversions

SELECTION PROCEDURE EXAMPLE—RKNA- SERIES

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

RKNA SERIES — 3 – 5 TONS – 13 SEER (cont’d)

Selection Procedure — Example

Side and Bottom Discharge – Natural Gas – 1 Phase

FREQUENCY(Hz) INPUT WEIGHT/
STOCK # MODEL COOLING VOLTAGE BTU/HR LBS. PRICE

 886202 RKNA-A036JK12E949 3TON 60-208-230 120,000 550 P.O.A.
886204 RKNA-A048JK13E949 4TON 60-208-230 135,000 592 P.O.A.
 886206 RKNA-A060JK13E949 5TON 60-208-230 135,000 604 P.O.A.

Note: For Technical Data see end of section.

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RHEEM PACKAGE GAS/ELECTRIC

*Voltage J = 208/230 VAC-1PH-60HZ D = 460 VAC-3PH-60HZ

C = 208/230 VAC-3PH-60HZ

NOTES: If a particular unit is to be converted to operate on LP (propane) for elevations above 2000 ft. in Canada, the existing Natural Gas to LP Conversion Kits for the

subject models already contain the necessary orifices and instructions to de-rate the input for 2000-4500 ft. Canadian applications.

Economizer is designed for downflow or horizontal applications.

[ ] Designates Metric Conversions

ACCESSORY EQUIPMENT

Accessory

Description

Model Application

3 to 5 Ton

[10.6 to 17.6 kW]

Accessory
Model No.

3 to 5 Ton

[10.6 to 17.6 kW]

Roofcurb Adapters RKNA-

RXRX-BBCDB21
RXRX-BBCDB22
RXRX-BBCDB23

Economizer with Single Enthalpy 

RKNA- RXRD-KECM3

Time Delay RKNA- RXMD-B01

Low Ambient Control to 0°F [-18°C] RKNA- RXRZ-A18

Fresh Air Damper Manual RKNA- RXRF-FBA1

Fresh Air Damper Motorized RKNA- RXRF-FBB1

Rectangular to Round 18"

Duct Adapters for Concentric Diffuser

RKNA- RXMC-CB03

Rectangular to Round 20"

Duct Adapters for Concentric Diffuser

RKNA- RXMC-CB04

Concentric Diffuser 18" Step RKNA- RXRN-FA60

Concentric Diffuser 18" Flush RKNA- RXRN-FA70

Roofcurb 14" RKNA- RXKG-BAD14
Roofcurb 24" RKNA- RXKG-BAD24

Rectangular to Round 16" Side RKNA- RXMC-BB01

Louver Kit (3 Sides) All RKNA- Models RXRX-AAD01B

Factory Installed

3 to 5 Ton

[10.6 to 17.6 kW]

No

Yes

Yes

Yes

No
No

No

No

No
No

No
No

No

Yes

LP Conversion Kits for use with

White Rodgers Gas Valve 

RKNA- RXGJ-EP84W

No

LP Conversion Kits for use with

Honeywell Gas Valve 

RKNA- RXGJ-EP85H

No

Dual Enthalpy Kit RKNA- RXRX-AV02 No

CO2Sensor Only RKNA- RXRX-AR02 No

Power Exhaust RKNA- RXRX-BFF04C No

Canadian High Altitude Kit

(for Natural Gas Only)



RKNA- RXRX-AH01 No

High Pressure RKNA- RXAB-A02 Yes
Low Pressure RKNA- RXAC-A02 Ye s

ACCESSORIES

RKNA SERIES — 3 – 5 TONS – 13 SEER (cont’d)

Accessory Equipment

Effective Date: December 2006

Rooftop

Heat/Cool

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ECCO HEATING PRODUCTS LTD. www.eccohtg.com 25

BOTTOM VIEW

[ ] Designates Metric Conversions

UNIT DIMENSIONS—RKKA/RKMA- SERIES

TECHNICAL DATA

RKKA Series — 3 – 6 Tons

Dimensions

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

Heat/Cool

Rooftop

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[ ] Designates Metric Conversions

UNIT DIMENSIONS—RKKA/RKMA- SERIES

TECHNICAL DATA (cont’d)

RKKA Series — 3 – 6 Tons (cont’d)

Unit Dimensions

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 27

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Heat/Cool

[ ] Designates Metric Conversions

BOTTOM VIEW

UNIT DIMENSIONS—RKKA/RKMA- SERIES

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

TECHNICAL DATA (cont’d)

RKKA Series — 7.5 Tons

Unit Dimensions

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[ ] Designates Metric Conversions

SUPPLY AND RETURN DIMENSIONS

BOTTOM VIEW

UNIT DIMENSIONS—RKKA/RKMA- SERIES

TECHNICAL DATA (cont’d)

RKKA Series — 7.5 Tons (cont’d)

Unit Dimensions

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

Rooftop

Heat/Cool

ECCO HEATING PRODUCTS LTD. www.eccohtg.com 29

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Heat/Cool

[ ] Designates Metric Conversions

UNIT DIMENSIONS—RKKA/RKMA- SERIES

Rooftop

Effective Date: December 2006

RHEEM PACKAGE GAS/ELECTRIC

TECHNICAL DATA (cont’d)

RKKA Series — 7.5 Tons (cont’d)

Unit Dimensions

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– All Prices F.O.B. Our Warehouse – Subject to Change Without Notice – All Taxes Extra –

30 www.eccohtg.com ECCO HEATING PRODUCTS LTD.