1.5, 2, 2.5, 3, 3.5, 4, 5 & 6 Ton Commercial Grade Wall Mounted Air Conditioners & Heat Pumps MODEL CX -WAC/ HP AIR CONDITIONERS & HEAT PUMPS Unit Application Bebco Model CX-WAC/HP is an electrically powered hazardous location climate control unit designed to cool permanent structures. The units are available in 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0 and 6.0 tonnages and most units can be factory set, at time of order, to operate on 208/230 VAC single phase, 208/230 VAC three phase or 460 VAC three phase power supplies. The unit is designed to have an external electrical rating approved for Class I, Division 2 / Zone 2, Groups B, C, & D / IIA, IIB hazardous areas. In addition, the unit is available with a choice of two interior electrical ratings. The first interior electrical rating option is designed and approved for buildings classified as nonhazardous locations as a result of Type Z pressurization in accordance with the NEC NFPA 70, Articles 500 & 501 and the NFPA 496. The second interior electrical rating option is rated and approved for Div. 2 / Zone 2, Groups B,C, & D / IIA, IIB hazardous (classified) locations. FOR DIVISION 2 / ZONE 2 HAZARDOUS LOCATIONS ECU Division Technical Bulletin CX-WAC/HP-R2.0 08/12 Description Bebco Model CX-WAC/HP Commercial Grade Air Conditioners 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 either a 316 14 gauge stainless steel or 20 gauge sheet metal housing that features wall surface mounting flanges, ventilation grills on the condenser compartment, and doorway drip shield flanges. The units are intended for use in outdoor locations and feature a weather resistant paint finish, which can also be refinished with white enamel, but can also be painted any custom color requested. Model CX-WAC/HP units are intended for use in areas where exposure to a severely corrosive atmosphere is considered unlikely or very infrequent. 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. I NT ER TEK Model CX-WAC/HP G2 & 22 Units CM C LI S TED US 6 Ton & Div.1 Units Are Not ETL Certified 6 Ton Wall Mount Heat Pumps Are NOT Available 4725 Lawndale La Marque, TX 77568 PHN: (409) 935-5743 FAX: (409) 938-4189 www.okbebco.com Copyright © 2012- Bebco Industries, Incorporated - All Rights Reserved Cross Sectional View Manufacturing Process The unit is then made suitable for either a Nonhazardous or Div. 2 / Zone 2 building interior. For Div. 2 / Zone 2 interiors, the electrical controls and barriers for a Div. 2 / Zone 2 thermostat are installed in a NEMA 7 explosion proof enclosure, along with sealed flex conduit, appropriate seals and an evaporator blower, modified to contain a Div. 2 / Zone 2 UL Listed TENV Motor with hermetically sealed thermal overloads and spark free aluminum fan blades. Finally, For Nonhazardous interiors, all electrical controls are placed in a NEMA 12 enclosure and the original evaporator fan is reinstalled into the unit, along with jacketed wiring systems for component interconnection. The interior of the unit is silicone sealed at every point of body panel attachment and fitted with a special flange and rear door assembly to provide a positive seal against the entrance of flammable gases or vapors. All units are then fully inspected and operationally tested to ensure quality of the final product. Optional Fresh Air Make-up Pressurization Air Sealed Evaporator Compartment Climate Controlled Building or Room Climate Controlled Building or Room Div. 2 Interior Atmosphere Interior Atmosphere Discharge Moving to the condenser compartment, a special wiring enclosure is then fitted to the compressor, and sealed flex conduit and form seven conduit fittings are added to ensure that all high voltage wiring is suitable for a Div. 2 / Zone 2, Group B,C, & D / IIA, IIB Area. Next, the condenser coil motor and fan blade are replaced with a Div. 2 / Zone 2 UL Listed TENV motor with hermetically sealed thermal overloads and an aluminum spark free fan blade. Div. 2 Evaporator Compartment Air Flow Starting with documented instructions and a full inspection and operational test of the unit, Bebco begins the conversion process in the evaporator compartment, where all electrical components and the evaporator fan are carefully removed and stored for later use. All commercial grade fiberglass insulation is then removed from the bottom section of the evaporator compartment, and is replaced with industrial grade foil back insulation. In addition, a solid steel bottom plate with mounting rails are added to seal the compartment and accommodate electrical control enclosure mounting brackets. Return Optional Fresh Air Make-up Pressurization Air Discharge Air Flow Return Barrier Cond. Air flow Cond. Air flow Condenser Compartment Div 2 Condenser Compartment "22" Unit Cut Away View Interior & Exterior Rated Class I, Groups C&D / IIA, IIB, Division 2 / Zone 2 "G2" Unit Cut Away View Interior Rated Non Hazardous Exterior Rated Class I, Groups C&D / IIA, IIB, Division 2 / Zone 2 Operation & Service Initial 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. DIVISION I APPLICATION NOTE "22" & "G2" Unit Ratings The most distinguishing difference between CXWAC Models, besides the obvious difference of size, is the classification of the evaporator compartment. As noted above, since the units are intended for use in a Div. 2 / Zone 2, Group B, C, & D / IIA, IIB Hazardous Area, the condenser compartment components and all associated wiring are rated for Div. 2 / Zone 2 Areas. But the evaporator compartment components are only exposed to the air which is recirculated within Building. For this reason, Bebco designs units that are suitable either for a Nonhazardous interior or a Div. 2 / Zone 2 interior. The units are distinguished by a segment of the Model Number that identifies the unit's electrical rating. A rating of "22" represents a unit that is suitable for a Div. 2 / Zone 2 Area both inside and outside of the building or room. A rating of "G2" represents a unit that is suitable for a Div. 2 / Zone 2 Area on the exterior of the building or room, but which is only suitable for a Nonhazardous Area within the room or building. The downgraded "G2" unit is therefore, by design, only suitable for building interiors that are rated Nonhazardous, but is offered at a significantly lower price than the "22" units. Bebco Industries, Incorporated Type 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. IMPORTANT "22" "21" & "2G" UNIT NOTES "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 "G2" & "G1" UNIT NOTES IMPORTANT "11" & " 21" 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. "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. "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 Environmental Control Units Division 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. Model CX-WAC/HP R2.0 Page 2 of 8 "1 & 2" Prefix Interior View "G" Prefix Interior View Sloped Top Evaporator Coil Drain Pan Air Flow Switch Division 2 / Zone 2 Evaporator Blower General Purpose Evaporator Blower (Optional Div. 2) Explosion Proof NEMA 4 & 7 Control Enclosure NEMA 4 Control Enclosure Condenser Coil The term "Prefix" above and below refers to a Unit's Electrical Rating "1 & 2" Prefix Controls VAC Power Terminals 24 VAC Transformer Compressor Contactor Evaporator Fan Motor Cap. Evaporator Fan Motor Control Card Bebco Industries, Incorporated "G" Prefix Controls Thermostat Repeater Relay Intrinsically Safe Isolator VAC Power Terminals 24 VAC Transformer Environmental Control Units Division Thermostat Terminals Compressor Contactor * Auxiliary Heater Element Contactors Intrinsically Safe Isolator Model CX-WAC/HP R2.0 Page 3 of 8 "22" Unit with Optional Heat Strips "G2" Unit with Optional Heat Strips For "22" Units For "G2" Units Only High Limit Switch Finned Type Heater Elements For Division 2 Areas Standard 5-20 Kilowatt Heater Elements for Nonhazardous Areas IMPORTANT LOW TEMPERATURE OPERATIONS NOTES Units 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. "22" & "G2" Unit Condenser Compartment Wiring Feed-Through Hub Sealed Flex Conduit Evaporator Drain Pan's Drain Tube Division 2 TENV Motor with Hermetically Sealed Thermal Overloads and Aluminum Fan Blade Compressor Wiring Junction Box Scroll Compressor Condenser Fan Interconnection Wiring Junction Box Heresite ® Coating** Non-Incendive Wiring to High Pressure & Low Pressure Switch Non-Incendive Wiring to Low Ambient Pressure Switch Compressor & Condenser Fan Assembly Photos above represent HVAC System Condenser Compartment with Division 2 Electrical Rating Bebco Industries, Incorporated Environmental Control Units Division Model CX-WAC/HP R2.0 Page 4 of 8 Basic Unit Wiring Requirements & Compatible Accessories BUILDING EXTERIOR From Customer Power Source Bebco HVAC Units BUILDING INTERIOR Wiring From CX-WAC Unit Controls Model PT-AC-GA General Purpose Cable "GG" General Purpose Interior General Purpose Exterior Programmable Automatic Changeover Thermostat for General Purpose Areas "G2" General Purpose Interior Class 1, Division 2, Exterior (Humidity Control Feature Available) Coiled Wire Heater Elements "G1" General Purpose Interior Class 1, Division 1, Exterior Internally mounted & Pre-Wired See Page 8 for Available kW Ratings From Customer Power Source Bebco HVAC Units Wiring From CX-WAC Unit Controls Model PT-AC-HA Non-Incendive Cable "2G" Programmable Automatic Changeover Thermostat for Division 2 Areas Class 1, Division 2, Interior General Purpose Exterior "22" (Humidity Control Feature Available) Class 2, Division 2, Interior Class 2, Division 2, Exterior Finned Tube Heater Elements "21" Class 2, Division 2, Interior Class 1, Division 1, Exterior Internally mounted & Pre-Wired See Page 8 for Available kW Ratings From Customer Power Source Wiring From CX-WAC Unit Controls Model MT-AC-HM Intrinsically Safe Cable Bebco HVAC Units Intrinsically Safe Manual Thermostat for Division 1 Areas "1G" Class 1, Division 1, Interior General Purpose Exterior Remote Heater Units For CX-WAC/HP Div. 1 Units "12" Class 1, Division 1, Interior Class 1, Division 2, Exterior "11" Class 1, Division 1, Interior Class 1, Division 1, Exterior Bebco Industries, Incorporated Environmental Control Units Division Model CX-WAC/HP R2.0 Page 5 of 8 Unit Minimum Circuit Ampacity Chart Unit Specifications Overall Dimensions: Shipping Weights (lbs): 1.5 & 2.0 Ton Units 2.5 & 3.0 Ton Units 3.5, 4.0, 5.0 & 6.0 Ton Units see page 7 350 435 560 Operating Temp Ranges: -40° F - 125° F Power Wiring Conduit Entries: 3/4" FPT Thermostat Wiring Conduit Entries: 1/2" FPT T- Code Rating T3 Operating 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 ** 415 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 Condenser Fan Motor: TENV Cl. I, Div. 2, Gr. B, C & D "G" Prefix Evaporator Blower Motor: General Purpose "2" Prefix Evp. Blower Motor: TENV Cl. I, Div. 2, Gr. B, C & D HVAC System Compressor: Scroll Style w/ Sealed Contacts "G" Prefix Control Enclosure: NEMA 4 "1 & 2" Prefix Control Enclosure: NEMA 4 & 7 Unit Tons 208 VAC/1Ø 208 VAC/3Ø 460 VAC/3Ø Aux. Heat Kw Aux. Heat Kw Aux. Heat Kw 05 81015200 691518 06 915 30 46 56 -- ----- ---1.5 16 2.0 21304656 - - 1522 - - - 1012 - 2.5 2432485884 - 18243351 - 11121726 3.0 2932485884 - 23243351 - 12121726 85 11125-34 536213-1827 3.5 3333-59 85 11129-34 526214-1827 4.0 3737-59 85 11128-34 536215-1827 5.0 4141-59 4949-59 85 11143-43 53- 23-2327 6.0 WHP Minimum Circuit Ampacity Chart Unit Tons 208 VAC/1Ø 208 VAC/3Ø 460 VAC/3Ø Aux. Heat Kw Aux. Heat Kw Aux. Heat Kw 05 81015200 691518 06 915 1.5 16-58--- ---- ----2.0 24-65- - - 1735- - -1121- 2.5 2450 - 76 - - 183645 - - 11202530 3.0 2955 - 8184 - 23415060 - 12212526 3.5 3662 - 8888 - 26445353 - 13222626 4.0 3763 - 898911129475656 6214 - 2727 Material Specifications 93 11128-55 556216-2828 5.0 4167-93 Unit Housing & Door: Painted 20 Ga Galv. Steel 14 Ga 316 Stainless Steel "G2" Rear Access Door: Painted 14 Ga Galv. Steel "G2" Access Door Fasteners: Cast Zinc Body / Zinc Bolt Evaporator Coil: Copper & Alum. "G2" Evaporator Blower Motor: Painted Steel Housing "G2" Evaporator Blower Wheels: Galvanized Steel "22" Evaporator Blower Motor: Painted Steel Housing "22" Evaporator Blower Wheels: Aluminum Compressor Body: Painted Carbon Steel Condenser Fan Motor: Painted Steel Housing Condenser Fan Blade: Aluminum Condenser Coil: Copper & Alum. Unit & Device Nameplates: Reverse Print Lexan® Control Enclosure: Cast Aluminum and/or Polycarbonate Elect. Enclosure & Fittings: Cast Zinc, Alum., & Other Coating Available Lexan® is a registered trademark of the General Electric Corporation The charts above DO NOT included amp draw from a humidistat (if included). SEE UNIT MODEL IDENTIFICATION TAG FOR ACTUAL ELECTRICAL LOADS Unit Mounting & Cut Out Template C D B SUPPLY OPENING E A Note: The mounting flange is shipped mounted to the unit shipping pallet. F A A Note: Bolt hole diameter is 0.375" RETURN OPENING G A H A Housing Finish Specifications I Standard Finish: Bard Factory Finish 2 mil Tan Enamel on all exterior surfaces except Unit back Mounting Flange CL Template Dimensions by Tonnage Size TONSA B C D E F G H I Bebco Finish: 1 mil Wash Primer & 3 mil White Urethane coating on exterior housing surface and all exposed Interior metal brackets, parts and components Custom Finish: per written customer specification 1.5 & 2.0 12 5.5 34.125 20.125 8.125 20.375 12.125 28 5 2.5 & 3.0 12 5.62539.12528.1258.125 17.7514.12528.875 5 3.5 4.0 * 5.0 6.0 162.8754330.125 10.125 29.75 16.125271.875 21 3 43 30.125 10.125 29.75 16.125 37 1.875 * 5 Ton Wall Mount Heat Pumps Are Housed In 6 Ton Housing, Refer To 6 To Dimensions For 5 Ton Heat Pumps Bebco Industries, Incorporated Environmental Control Units Division Model CX-WAC/HP R2.0 Page 6 of 8 Unit Housing Dimension Diagrams "22" Model CX-WAC Standard Right Hand Configuration Shown (Left Hand Configuration Available At Customers Request) E S 1.5 L D M A B I Optional Pressurization air either side on request C H F B N K Q G O "G2" Model CX-WAC Standard Right Hand Configuration Shown (Left Hand Configuration Available At Customers Request) E S 1.5 L D M A BEBCO B I R Optional Pressurization air either side on request C H B N K G O Individual Unit Dimensions by Tonnage Size TONSABCDE FGH I J KLMNOPQRS 1.5 & 2.0 7.875 19.875 11.875 17.125 34.875 18.25 25.75 70.5 20.75 - 28 34 4.75 12 5 2.5 & 3.0 7.875 27.875 13.875 17.125 39.875 18.25 25.75 70.518 - 28.75 394.7512 5 3.5 4.0 9.875 29.875 15.875 22.543.8751931.625 84.87530 * 5.0 6.0 9.875 29.875 15.875 22.543.8751941.625 94.87530 - 35.25 44 33.2 - 35.2544 37.875 - 27 43 2 16 1.875 - 41.25 53 42 - 37 43 2 16 1.875 - 42.7 58 42 * 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. Bebco Industries, Incorporated Environmental Control Units Division Model CX-WAC/HP R2.0 Page 7 of 8 Model Number Designations Coiled Wire Heater Elements "GG, G1, & G2" Rated Units Only UNIT TONS - - - - - 60 Hz UNIT VOLTAGES - - - - - - A - 1Ø 208/230 VAC 1.5 AC15AG2H05 > AC15AG2H08 AC15AG2H10 2 - B - 3Ø 208/230 VAC -C3Ø 460 VAC Last Two Digits "05" = Kilowatts AC20AG2H05AC20BG2H06AC20CG2H06 AC20AG2H08AC20BG2H09AC20CG2H09 AC20AG2H10 AC20BG2H15 AC20CG2H15 2.5 AC25AG2H05AC25BG2H06AC25CG2H06 AC25AG2H08AC25BG2H09AC25CG2H09 AC25AG2H10AC25BG2H15AC25CG2H15 AC25AG2H15 3 AC30AG2H05AC30BG2H06AC30CG2H06 AC30AG2H08AC30BG2H09AC30CG2H09 AC30AG2H10AC30BG2H15AC30CG2H15 AC30AG2H15 3.5 AC35AG2H05AC35BG2H09AC35CG2H09 AC35AG2H10AC35BG2H15AC35CG2H15 AC35AG2H15AC35BG2H18 AC35AG2H20 4 AC40AG2H05AC40BG2H09AC40CG2H09 AC40AG2H10AC40BG2H15AC40CG2H15 AC40AG2H15AC40BG2H18 AC40AG2H20 Typical Model- C X - WA C - ¤ ¤ - 2 0 - A - G 2 - H 3 - 0 Model CX -Commercial Grade Style WAC- Wall Mount Air Conditioner WHP- Wall Mount Heat Pump Custom Configurations * 0 -Optional Features Optional pressurization * P -Pressurization Unit Tonnage WAC ** WHP ** WHP *** Total BTU BTU Cool BTU Heat 1.5- 1.5 Tons 16,400 16,400 16,000 2.0- 2.0 Tons 24,000 23,600 24,000 2.5- 2.5 Tons 29,400 29,800 29,000 3.0- 3.0 Tons 35,400 34,600 35,000 3.5- 3.5 Tons 41,000 42,000 42,000 4.0- 4.0 Tons 47,000 46,000 44,000 5.0- 5.0 Tons 55,000 54,000 54,000 6.0- 6.0 Tons 68,000 - - Voltage ***** 5 AC50AG2H05AC50BG2H09AC50CG2H09 A -Single Phase 208/230 VAC 60 Hz AC50AG2H10AC50BG2H15AC50CG2H15 AC50AG2H15AC50BG2H18 B -Three Phase 208/230 VAC 60 Hz **** AC50AG2H20 C -Three Phase 460 VAC 60 Hz **** D -Three Phase 230 VAC 50 Hz **** 6 AC60AG2H05AC60BG2H09AC60CG2H09 AC60AG2H10AC60BG2H15AC60CG2H15 Class I Electrical Rating AC60AG2H15AC60BG2H18 Interior Exterior AC60AG2H20 Finned Tube Heater Elements "2G, 21, 22, 1G, 12, & 11" Rated Units Only - - - - - 60 Hz UNIT VOLTAGES - - - - - UNIT TONS - A - - B - -C1Ø 208 /230 VAC 3Ø 208/230 VAC 3Ø 460 VAC 1.5-3AF30A22H03 AF30B22H03 3.5 - 6 AF60B22H05 AF60A22H05 AF60C22H05 Heater Element Notes: For 50 Hz Unit Voltages, please consult factory sales agent. For isolated radiant heater units, refer to the Remote Heater Unit Specification Bulletin. For information regarding duct mounted heating units and auxiliary forced air heating units, please contact factory sales agent. Unit Thermostats Model Number PT-AC-GA PT-AC-HA MT-AC-HM Intended Unit "GG, G2 & G1" Units "2G, 22" & 21" Units "1G, 12" & 11" Units Area Classification General Purpose C1, D2, Gr. B, C & D 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. IMPORTANT NOTES All specifications subject to change without notice. Warranty & Liability policies available upon request. Bebco Industries, Incorporated G- General Purpose G - General Purpose 1 - Div. 1 GRP C & D 1 - Div. 1 GRP C & D 2 - Div. 2 GRP B, C, & D 2 - Div. 2 GRP B, C, & D Zone 2 GRP IIB+H2 T3 Zone 2 GRP IIB+H2 T3 Heating Equipment ***** G - General Purpose H -Hazardous 0 3 5 6 -None - 3 kW - 5 kW - 6 kW 8 9 10 15 - 8 kW - 9 kW - 10 kW - 15 kW Options 0 - No Option Standard 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. Environmental Control Units Division Model CX-WAC/HP R2.0 Page 8 of 8