Copyright © 2012- Bebco Industries, Incorporated - All Rights Reserved

FOR HIGHLY CORROSIVE & HAZARDOUS AREAS

ECU Division Technical Bulletin IX-WAC/HP-R1.1 08/12

MODEL IX -WAC/HP AIR CONDITIONERS & HEAT PUMPSUnit Application

Bebco Model IX-WAC/HP Industrial Grade Air Conditioners & Heat Pumps are designed as a total solution to building climate control in severely corrosive and Hazardous (Classified) Areas. The Unit are designed to comply with all requirements of National Electrical Code Article 500, and provides the most exemplary solution to environmental control in highly corrosive environments.

Technical DescriptionBebco Model IX-WAC/HP Industrial Grade

Air Conditioners & Heat Pumps are self-contained wall mounted units with all necessary components to supply a room or building with recirculated air that is temperature controlled and humidity limited.

The HVAC system features two isolated sections, stacked one atop the other. The lower section, known as the condenser compartment, contains the condenser coil, condenser fan motor, condenser fan and shroud assembly, compressor, and pressure sensors which supply the unit controls with signals to activate and deactivate the compressor and condenser fan. The upper section, known as the evaporator compartment, contains the evaporator coil, optional heater elements, an evaporator blower wheel and motor assembly, electrical controls and a return air filter element.

The units are contained within a 14 gauge seal-welded 316 grade stainless steel sheet metal housing that features wall surface mounting flanges,18 gauge stainless steel ventilation grills on the condenser compartment, and doorway drip shield flanges. The units are intended for use in highly corrosive outdoor environments and feature a white urethane paint finish on all housing and component surfaces, but it can also be painted any custom color requested.

The unit bottom support bracket, return air filter grille, and supply air register are shipped loose in the crate, to complete field installation. In addition, custom supply ducts with registers can be furnished upon request to distribute air evenly to multiple rooms or the entire length of a large single room.

CM

C USLISTED

INTERTEK

Model IX-WAC/HP G2 & 22 Units

FAX: (409) 938-4189PHN: (409) 935-5743La Marque, TX 77568

4725 Lawndale

www.okbebco.com

1.5, 2, 2.5, 3, 3.5, 4, 5 & 6Ton Industrial Grade WallMounted Air Conditioners

& Heat Pumps

6 Ton & Div.1 Units Are Not ETL Certified 6 Ton Wall Mount Heat Pumps Are NOT Available

IMPORTANT "G2" & "G1" UNIT NOTES

"G2" Units are designed for use on structures with nonhazardous interior ratings as a result of Type Z pressurization in accordance with NFPA 496. The structure must contain no internal source of ignitable concentrations of gases or vapors, e.g. analyzer rooms. "G2" Units must be powered by a circuit located after or separate from a disconnect switch for the pressurization unit, in accordance with NFPA 496 section 5.4.9

Cross Sectional View

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 2 of 8

"22" Units are designed and approved for use on control rooms or buildings classified as Class I, Division 2 / Zone 2, Groups B,C&D / IIA, IIB and contain no internal source of ignitable concentrations of gases or vapors (analyzer rooms)."22" Units are also designed and approved for use on analyzer rooms or buildings classified as Class I, Division 2 / Zone 2, Groups B,C&D / IIA, IIB, if the room or building is ventilated in accordance with NFPA 496 section 8.3.1.

IMPORTANT "22" "21" & "2G" UNIT NOTES

"11 and 21" as well as "1G, G1 and 12" Units incorporate a Type "Y" pneumatic purging system to render all or some Division 2 rated motors and conduit systems suitable for a Division 1 Group C & D Hazardous Areas.

IMPORTANT "11" & " 21" UNIT NOTES

User must provide a clean source of instrument air or inert gas that is essentially free of any ignitable concentration of combustible gas, and operate purging system in complete accordance with manufacturer's instructions and NFPA 496.

Manufacturing ProcessBebco begins the manufacturing process with fully inspected and tested components, and a seal-welded 316 stainless steel housing. First, 1” foil-backed foam insulation is applied to all interior surfaces of the evaporator compartment. Then, an evaporator coil and stainless steel drip pan are installed in the evaporator compartment then a compressor and condenser coil are installed in the condenser compartment.

Technicians then install all necessary copper tubing with hand fitted solder joints to complete all interconnections between the condenser coil, the compressor and the evaporator coil and preform leakage tests. Upon proving the performance of all tubing, the condenser coil shroud, fan motor and fan blade assembly are installed in the condenser compartment and the evaporator blower wheel and motor assembly are installed in the evaporator compartment.

Finally, the HVAC system is fitted with electrical controls, conduit, pressure sensors and wiring, and all stainless steel grills, and a rear access door. The completed unit is then inspected and performance tested to ensure optimal performance.

Component RatingsGeneral Purpose rated evaporator compartments are fitted with a general purpose blower motor, a blower assembly with galvanized blower wheels, and a NEMA 4 rated electrical control enclosure.

Division 2 rated evaporator compartments are fitted with a TENV blower motor with hermetically sealed thermal overloads, aluminum blower wheels, and a NEMA 4 and 7 rated explosion proof electrical control enclosure.

General Purpose rated condenser compartments are fitted with a standard compressor, a general purpose fan motor and a galvanized fan blade.

Division 2 rated condenser compartments are fitted with a modified compressor, a TENV fan motor with hermetically sealed thermal overloads, and aluminum fan blade.

Sealed flex conduit, appropriate conduit seals, and form seven fittings are used in the condenser compartment, for all wiring between the compressor, condenser motor and electrical controls.

The evaporator compartment is fitted with a sealed wiring harnesses or sealed flex conduit and conduit seals, depending on the interior rating.

An intrinsically safe isolator is added to protect the thermostat for Hazardous interiors and intrinsically safe barriers are added for condenser compartment sensors on units with Division 2 rated areas.

DIVISION I APPLICATION NOTEType Y purging will be used to protect motors, compressor and conduit system on Units rated for Class I, Division 1, Group B Hazardous Areas. Contact a Bebco Sales Associate for information.

Operation & ServiceInitial start-up is accomplished by ensuring that the thermostat controller for the HVAC system is set to the "off" condition. Power can then be applied to a main disconnect switch for the unit after any conditions such as building pressurization have been satisfied. The HVAC system's thermostat can then be set to activate heating or cooling functions.

During normal operation, the HVAC system will cycle on and off as needed to meet thermal control demands.

Power to the HVAC system must be disengaged prior to accessing the HVAC system evaporator compartment.

Please contact a Bebco Sales Associate or refer to the installation, operation and maintenance manual for more information regarding operation.

Electrical RatingsAs shown in the cross section view to the right, the condenser compartment is exposed to the surrounding atmosphere, while the evaporator compartment is only exposed to air which is recirculated within the climate controlled building or room.

The units are therefore designed with a split rating, distinguished by a segment of the Model Number that identifies the unit’s electrical rating. The segment consists of two characters which represent the separate evaporator and condenser compartment ratings.

Please utilize the model number designations chart on Page 8 to select the correct unit for your particular application.

Please read all IMPORTANT NOTES for critical information regarding unit design

Discharge

Air Flow

Return

Barrier

CondenserCompartment

Sealed EvaporatorCompartment

Climate ControlledBuilding or Room

InteriorAtmosphere

Cond.Air flow

Optional Fresh Air Make-up Pressurization Air

Intrinsically SafeIsolator

Typical "1 & 2" Prefix Controls Typical "G" Prefix ControlsVAC PowerTerminals

Evaporator FanMotor Cap.

24 VACTransformer

Evaporator FanMotor Control Card

CompressorContactor

ThermostatRepeater Relay

* Auxiliary HeaterElement Contactors

CompressorContactor

ThermostatTerminals

VAC PowerTerminals

Intrinsically SafeIsolator

24 VACTransformer

SlopedTop

EvaporatorCoil

DrainPan

Division 2 / Zone 2Evaporator Blower

General PurposeEvaporator Blower

(Optional Div. 2)

Explosion ProofNEMA 4 & 7

Control Enclosure

Sealed Flex Conduit

NEMA 4Control Enclosure

CondenserCoil

"1 & 2" Prefix Interior View "G" Prefix Interior View

The term "Prefix" above and below refers to a Unit's Electrical Rating

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 3 of 8

Wiring Feed-Through Hub

Sealed Flex Conduit

Evaporator DrainPan's Drain Tube

TENV Motor withHermetically Sealed

Thermal Overloads andAluminum Fan Blade

Compressor WiringJunction Box

ScrollCompressor

Sealed InterconnectionWiring Junction Box

Heresite ® Coating**

Non-Incendive Wiring toHigh Pressure & Low Pressure

Switch

Non-Incendive Wiring toLow Ambient Pressure Switch

IMPORTANT NOTES** All associated tubing along with the Condenser Coils and Evaporator Coils are Heresite® coated.

Other coating are available upon request - please contact your Sales Representative for more information.Heresite® is a registered trademark of Heresite Protective Coatings, Incorporated

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 4 of 8

Compressor & Condenser Fan Assembly Photos above representHVAC System Condenser Compartment with Division 2 Electrical Rating

Standard 5-20 Kilowatt Heater Elementsfor Nonhazardous Areas

For "G2" Units OnlyFor "22" Units

Finned Type Heater Elements For Division 2 Areas

IMPORTANT LOW TEMPERATURE OPERATIONS NOTESUnits utilizing cooling cycle at or below 65 °F outside ambient require factory installed low ambient control accessory for

proper operation. Consult Factory for more information.

High Limit Switch

"22" Unit with Optional Heat Strips "G2" Unit with Optional Heat Strips

"22" & "G2" Unit Condenser Compartment

Wiring FromIX-WAC/HP Unit

Controls

Intrinsically Safe Cable

Wiring FromIX-WAC/HP Unit

Controls

General Purpose Cable

From Customer Power Source

Wiring FromIX-WAC/HP Unit

Controls

Non-Incendive Cable

Model PT-AC-GA

Coiled Wire Heater Elements

Programmable Automatic Changeover Thermostat

for General Purpose Areas(Humidity Control Feature Available)

Internally mounted & Pre-WiredSee Page 8 for Available KW Ratings

Finned Tube Heater Elements

Internally mounted & Pre-WiredSee Page 8 for Available KW Ratings

Model PT-AC-HA

Programmable Automatic Changeover Thermostat

for Division 2 Areas(Humidity Control Feature Available)

Bebco HVAC Units"1G"

Class 1, Division 1, InteriorGeneral Purpose Exterior

"12"Class 1, Division 1, InteriorClass 1, Division 2, Exterior

"11"Class 1, Division 1, InteriorClass 1, Division 1, Exterior

From Customer Power Source

Bebco HVAC Units"2G"

Class 1, Division 2, InteriorGeneral Purpose Exterior

"22"Class 2, Division 2, InteriorClass 2, Division 2, Exterior

"21"Class 2, Division 2, InteriorClass 1, Division 1, Exterior

From Customer Power Source

Bebco HVAC Units"GG"

General Purpose InteriorGeneral Purpose Exterior

"G2"General Purpose Interior

Class 1, Division 2, Exterior

"G1"General Purpose Interior

Class 1, Division 1, Exterior

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 5 of 8

Basic Unit Wiring Requirements & Compatible Accessories

BUILDING EXTERIOR BUILDING INTERIOR

Model MT-AC-HM

Intrinsically Safe Manual Thermostat

for Division 1 Areas

Remote Heater UnitsFor IX-WAC/HP Div. 1

Units

Unit SpecificationsOverall Dimensions: see page 7Shipping Weights (lbs):

1.5 & 2.0 Ton Units 3502.5 & 3.0 Ton Units 4353.5, 4.0, 5.0 & 6.0 Ton Units 560

Operating Temp Ranges: -20° F - 125° FPower Wiring Conduit Entries: 3/4" FPTThermostat Wiring Conduit Entries: 1/2" FPTT- Code Rating T3Operating Voltages: 208/230 VAC 1Ø 60 Hz * 208/230 VAC 3Ø 60 Hz * 460/480 VAC 3Ø 60 Hz ** 230 VAC 3 3Ø 50 Hz * Voltage not available for 1.5 ton Units** Voltage for Oversea's Application

Terms "Suffix and "prefix" below refer to Unit's Electrical Rating

Component Specifications

"G" Suffix Condenser Fan Motor: General Purpose"1 & 2" Suffix Condenser Fan Motor: TENV Cl. I, Div. 2, Gr. B, C & D"G" Prefix Evaporator Blower Motor: General Purpose"1 & 2" Prefix Evp. Blower Motor: TENV Cl. I, Div. 2, Gr. B, C & DHVAC System Compressor: Scroll Style w/ Sealed Contacts "G" Prefix Control Enclosure: NEMA 4 "1 & 2" Prefix Control Enclosure: NEMA 4 & 7

Material Specifications

Unit Housing & Door: Painted 14 Ga 316 Stainless SteelVentilation Grills: Painted 18 Ga 316 Stainless SteelAccess Door Fasteners: 316 Stainless Steel / Tool Operated Evaporator Coil: Heresite® Coated Copper & Aluminum FinsEvaporator Blower Motor: Painted Carbon Steel Housing"G" Evaporator Blower Wheels: Painted Galv. Steel"1 & 2" Prefix Blower Wheels: Painted AluminumCompressor Body: Painted Carbon SteelCondenser Fan Motor: Painted Carbon Steel HousingCondenser Fan Blade: Painted AluminumCondenser Coil: Heresite® Coated Copper & Aluminum FinsUnit & Device Nameplates: Reverse Print Lexan®

Control Enclosure: Cast Aluminum and/or Polycarbonate Elect. Enclosure & Fittings: Cast Zinc & Alum.Electrical Conduit & Fittings: *Plasti-Bond RedH2OT® - -Coated Cast Zinc & Aluminum * Optional Coating

Lexan® is a registered trademark of the General Electric Corporation Heresite® is a registered trademark of Heresite Protective Coatings, Inc.Plasti-Bond REDH2OT is a registered trademark or Robroy Industries, Inc.

Housing Finish Specifications

Standard Finish: 1 mil Wash Primer & ( BEBCO ) 3 mil White Urethane coating on exterior housing surface and all exposed Interior metal brackets, parts and components

Custom Finish: per written customer specification( USER )

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 6 of 8

Supply Duct Cutout

Unit Body

Unit Flange

Return Duct Cutout

“I”

“F”

“H”

Mounting Flange

“G”“B”

“A”

“D”

“C”

“E”

IMPORTANT NOTE

Dimensions “E” & “H”originate from top

of Mounting Flange,shipped loose with Unitfor attachment to wall

TYPICAL DIMENSIONS

“I” = Mounting Hole Diameter“F” = Hole to Hole Dimension

Unit Mounting & Cut Out Template

TONS A B C D E F G H I

1.5 & 2.0 8.125 20.125 12.125 20.5 29 12 36.625 6.75 0.375

2.5 & 3.0 8.125 28.125 14.125 17.75 28.75 12 41.5 6.875 0.375

3.5 4.0 10.125 30.125 16.125 29.75 27.75 16 45.875 2.5 0.375 5.0 6.0 10.125 30.125 16.125 29.75 37.75 16 45.875 2.5 0.375

Template Dimensions by Tonnage Size

Unit Tons

208 VAC/1Ø

0 5 8 10 15 20 0 6 9 15 18 0 6 9 15

208 VAC/3Ø 460 VAC/3ØAux. Heat KwAux. Heat KwAux. Heat Kw

WAC Minimum Circuit Ampacity Chart

16 30 46 56 - - - - - - - - - - -

21 30 46 56 - - 15 22 - - - 10 12 - -

24 32 48 58 84 - 18 24 33 51 - 11 12 17 26

29 32 48 58 84 - 23 24 33 51 - 12 12 17 26

33 33 - 59 85 111 25 - 34 53 62 13 - 18 27

37 37 - 59 85 111 29 - 34 52 62 14 - 18 27

41 41 - 59 85 111 28 - 34 53 62 15 - 18 27 49 49 - 59 85 111 43 - 43 53 - 23 - 23 27

1.52.02.53.03.54.05.06.0

The charts above DO NOT included amp draw from a humidistat (if included).SEE UNIT MODEL IDENTIFICATION TAG FOR ACTUAL ELECTRICAL LOADS

Unit Tons

208 VAC/1Ø

0 5 8 10 15 20 0 6 9 15 18 0 6 9 15

208 VAC/3Ø 460 VAC/3ØAux. Heat KwAux. Heat KwAux. Heat Kw

WHP Minimum Circuit Ampacity Chart

16 - 58 - - - - - - - - - - - -

24 - 65 - - - 17 35 - - - 11 21 - -

24 50 - 76 - - 18 36 45 - - 11 20 25 30

29 55 - 81 84 - 23 41 50 60 - 12 21 25 26

36 62 - 88 88 - 26 44 53 53 - 13 22 26 26

37 63 - 89 89 111 29 47 56 56 62 14 - 27 27

41 67 - 93 93 111 28 - 55 55 62 16 - 28 28

1.52.02.53.03.54.05.0

* 5 Ton Wall Mount Heat Pumps Are Housed In 6 Ton Housing, Refer To 6 To Dimensions For 5 Ton Heat Pumps

All Dimensions shown in inches. Cutout Clearance is 0.125"

Back View

Left View

Front View

Right View

C

E

F

B

G

H

A

I

Unit Mounting Flanges

TypicalFor All

MountingHole Diameter

K

J

L

O

Return Duct

Supply Duct

T

HeaterElement

Access Cover

R

P

PowerWiring

B

D

S Standard Right Hand Configuration Shown(Left Hand Configuration Available At Customers Request)

ThermostatWiring

Optional Fresh Air Make-up

or Pressurization

BEBCO

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 7 of 8

TONS A B C D E F G H I J K L M N O P R S T

1.5 & 2.0 7.875 19.875 11.875 20.75 29.125 12 36.625 6.75 0.375 38.25 34.875 72.75 - - 12.5 30 6 1.5 19.25

2.5 & 3.0 7.875 27.875 13.875 18 28.875 12 41.5 6.875 0.375 43 39.875 72.75 - - 12.5 30 6 1.5 19.25

3.5 4.0 9.875 29.875 15.875 30 27.875 16 45.875 2.5 0.375 47.5 44.25 84.875 - - 16.75 35 6 1.5 25.375 * 5.0 6.0 9.875 29.875 15.875 30 37.875 16 45.875 2.5 0.375 47.5 44.25 94.875 - - 16.75 45 6 1.5 25.375

* 5 Ton Wall Mount Heat Pumps Are Housed In 6 Ton Housing, Refer To 6 To Dimensions For 5 Ton Heat Pumps All Dimensions shown in inches. All Dimensions are shown for reference purposes only and subject to change without notice.

Individual Unit Dimensions by Tonnage Size

Unit Housing Dimension Diagrams

"GG, G1, & G2" Rated Units Only - - - - - 60 Hz UNIT VOLTAGES - - - - -

UNIT - A - - B - - C -TONS 1Ø 208/230 VAC 3Ø 208/230 VAC 3Ø 460 VAC

1.5 AC15AG2H05 > Last Two Digits "05" = Kilowatts AC15AG2H08 AC15AG2H10

2 AC20AG2H05 AC20BG2H06 AC20CG2H06 AC20AG2H08 AC20BG2H09 AC20CG2H09 AC20AG2H10 AC20BG2H15 AC20CG2H15

2.5 AC25AG2H05 AC25BG2H06 AC25CG2H06 AC25AG2H08 AC25BG2H09 AC25CG2H09 AC25AG2H10 AC25BG2H15 AC25CG2H15 AC25AG2H15

3 AC30AG2H05 AC30BG2H06 AC30CG2H06 AC30AG2H08 AC30BG2H09 AC30CG2H09 AC30AG2H10 AC30BG2H15 AC30CG2H15 AC30AG2H15

3.5 AC35AG2H05 AC35BG2H09 AC35CG2H09 AC35AG2H10 AC35BG2H15 AC35CG2H15 AC35AG2H15 AC35BG2H18 AC35AG2H20

4 AC40AG2H05 AC40BG2H09 AC40CG2H09 AC40AG2H10 AC40BG2H15 AC40CG2H15 AC40AG2H15 AC40BG2H18 AC40AG2H20

5 AC50AG2H05 AC50BG2H09 AC50CG2H09 AC50AG2H10 AC50BG2H15 AC50CG2H15 AC50AG2H15 AC50BG2H18 AC50AG2H20 6 AC60AG2H05 AC60BG2H09 AC60CG2H09 AC60AG2H10 AC60BG2H15 AC60CG2H15 AC60AG2H15 AC60BG2H18 AC60AG2H20

"2G, 21, 22, 1G, 12, & 11" Rated Units Only - - - - - 60 Hz UNIT VOLTAGES - - - - -

UNIT - A - - B - - C -TONS 1Ø 208 /230 VAC 3Ø 208/230 VAC 3Ø 460 VAC

1.5-3 AF30A22H03 AF30B22H03

3.5 - 6 AF60A22H05 AF60B22H05 AF60C22H05

Heater Element Notes:For 50 Hz Unit Voltages, please consult factory sales agent.For isolated radiant heater units, refer to the Remote Heater UnitSpecification Bulletin.

For information regarding duct mounted heating units and auxiliary forced air heating units, please contact factory sales agent.

Model Number Intended Unit Area ClassificationPT-AC-GA "GG, G2 & G1" Units General PurposePT-AC-HA "2G, 22" & 21" Units C1, D2, Gr. B, C & DMT-AC-HM "1G, 12" & 11" Units C1, D1, Gr. C & D

Notes: Thermostats with a "M" Suffix are manually operated and non-programmable. Thermostats with an "A" suffix are programmable with automatic switch-over between Heating and Cooling Modes.

Bebco Industries, Incorporated Environmental Control Units Division Model IX-WAC/HP R1.1 Page 8 of 8

IMPORTANT NOTESAll specifications subject to change without notice.

Warranty & Liability policies available upon request.

Coiled Wire Heater Elements

Finned Tube Heater Elements

Unit Thermostats

Typical Model- IX-WAC- ¤ ¤ -20-A-G2-H3-0ModelIX - Industrial GradeStyleWAC - Wall Mount Air ConditionerWHP - Wall Mount Heat PumpCustom Configurations *0 - Optional FeaturesOptional pressurization * P - Pressurization UnitTonnage 1.5 - 1.5 Tons 16,400 16,400 16,0002.0 - 2.0 Tons 24,000 23,600 24,0002.5 - 2.5 Tons 29,400 29,800 29,0003.0 - 3.0 Tons 35,400 34,600 35,0003.5 - 3.5 Tons 41,000 42,000 42,0004.0 - 4.0 Tons 47,000 46,000 44,0005.0 - 5.0 Tons 55,000 54,000 54,0006.0 - 6.0 Tons 68,000 - - Voltage *****A - Single Phase 208/230 VAC 60 HzB - Three Phase 208/230 VAC 60 Hz ****C - Three Phase 460 VAC 60 Hz **** D - Three Phase 230 VAC 50 Hz ****Class I Electrical Rating Interior ExteriorG - General Purpose G - General Purpose1 - Div. 1 GRP C & D 1 - Div. 1 GRP C & D2 - Div. 2 GRP B, C, & D 2 - Div. 2 GRP B, C, & D Zone 2 GRP IIB+H2 T3 Zone 2 GRP IIB+H2 T3Heating Equipment *****G - General Purpose 0 - None 8 - 8 kWH - Hazardous 3 - 3 kW 9 - 9 kW 5 - 5 kW 10 - 10 kW 6 - 6 kW 15 - 15 kWOptions0 - No OptionStandard Model Selection Notes:¤ This symbol indicates a place holder, if data tag has no info here, then the

unit is not equipped with optional equipment, accessory, or configuration.

* Remove this section from model structure if not required

** BTU cool rating @ 95° F outside ambient

*** BTU Heat rating @ 47° F outside ambient

*** Note: Units utilizing cooling cycle were normal conditions are below 30°F auxiliary heat may be required or suggested. Consult Factory for more information.

**** Voltage option not available for 1.5 ton Units

***** Additional sizes and voltages available. (Consult factory) 6 Ton Units Are NOT ETL listed Division 1 Units are not ETL listed. Division 1 Units are self-certified in compliance UL Standards.

WAC **Total BTU

WHP **BTU Cool

WHP ***BTU Heat

Model Number Designations