TECHNICAL GUIDE GENERAL SPECIFICATIONS COMMERCIAL SPLIT-SYSTEM COOLING UNITS FOUR PIPE SYSTEM OUTDOOR UNIT: INDOOR UNIT:

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1 GENERAL SPECIFICATIONS OUTDOOR UNIT: TECHNICAL GUIDE COMMERCIAL SPLIT-SYSTEM COOLING UNITS FOUR PIPE SYSTEM MODELS HB 180 & HB 240 MODELS LB 180 & LB & 20 NOMINAL TONS 9.7 EER Two independent refrigerant circuits Inherently protected fan motors Two independent scroll compressors V-Coil Design Exterior service port connections Refrigerant-22 holding charge Five-minute compressor anti-short cycle timer Two independent control circuits Compressor operation to 40 F Field-installed Low Ambient VFD Control to 0 F Five-year limited warranty on compressor One-year limited warranty on all other parts Simplicity Controls Factory installed disconnect and Technicoat coils INDOOR UNIT: Factory-mounted expansion valve and filter-drier in both refrigerant circuit Adjustable TXV s Two-inch throwaway filters Single point power connection One-year limited warranty on all parts Field installed drive packages FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

2 GENERAL SPECIFICATIONS OUTDOOR UNIT INDOOR UNIT DESCRIPTION APPLICATION FLEXIBILITY OUTDOOR APPLICATION FLEXIBILITY INDOOR OUTDOOR UNIT ACCESSORIES (FACTORY & FIELD INSTALLED INDOOR UNIT ACCESSORIES INDOOR UNIT (FIELD INSTALLED) GUIDE SPECIFICATIONS LIST OF FIGURES Fig. # Pg. # 1 TYPICAL INDOOR UNIT APPLICATIONS INDOOR PRODUCT NOMENCLATURE INDOOR PRODUCT NOMENCLATURE VERTICAL ARRANGEMENTS - LB180 AND LB HORIZONTAL ARRANGEMENTS - LB180 AND LB CORNER WEIGHT PIPING AND ELECTRICAL CONNECTION LOCATIONS TON BLOWER PERFORMANCE TON BLOWER PERFORMANCE HORIZONTAL APPLICATION CORNER WEIGHTS VERTICAL APPLICATION CORNER WEIGHTS UNIT DIMENSIONS LB180 AND LB LB180 SUPPLY AIR PLENUM DIMENSIONS RETURN AIR GRILLE FOR LB180 DIMENSIONS TABLE OF CONTENTS LIST OF TABLES Tbl. # Pg. # 1 UNIT APPLICATION DATA ARI RATINGS - COOLING AND SOUND ELECTRICAL DATA COMPRESSORS ELECTRICAL DATA FAN MOTORS ELECTRICAL DATA, OUTDOOR MCA & MAX. FUSE SIZE OUTDOOR UNIT PHYSICAL DATA INDOOR UNIT PHYSICAL DATA CONNECTIONS UNIT CLEARANCES HB CORNER WEIGHTS AND CENTER OF GRAVITY PIPING AND ELECTRICAL CONNECTION SIZES REFRIGERANT LINE CHARGE SUCTION LINES LIQUID LINES TON CAPACITY TABLE - 85 AND 95 F TON CAPACITY TABLE AND 115 F TON CAPACITY TABLE F TON CAPACITY TABLE - 85 AND 95 F TON CAPACITY TABLE & 115 F TON CAPACITY TABLE F LB TON AIRFLOW TABLE LB TON AIRFLOW TABLE BLOWER DRIVE DATA BLOWER DATA INDOOR ELECTRICAL RATINGS INDOOR UNIT WEIGHTS AND CORNER WEIGHTS UNIT DIMENSIONS LB180 AND LB Unitary Products Group

3 DESCRIPTION Both the outdoor and indoor units are completely piped and wired at the factory and are shipped ready for immediate installation. Only the interconnecting liquid and suction lines, control wiring, and the main power wiring are required to complete the installation. Every outdoor unit is dehydrated, evacuated, leak tested and pressure tested at 450 psig before being pressurized with a holding charge of refrigerant- 22 for shipment and/or storage. To eliminate the costly cabinet deterioration problems usually associated with outdoor equipment, all sheet metal parts are constructed of commercial grade (G90) galvanized steel. After fabrication, each part is thoroughly cleaned to remove any grease or dirt from its surfaces. The parts that will be exposed to the weather are then coated with a desert sand powder paint to assure a quality finish for many years. This coating system has passed the 750-hour, salt spray test per ASTM Standard B117. APPLICATION FLEXIBILITY OUTDOOR The outdoor units are lightweight and can be installed on almost any roof. APPLICATION FLEXIBILITY INDOOR * ) 14, ) / - ) 14 1 ) J@ ) HH= C A A J ) * ) ) 14, ) / ) 2 4 ) ) 6-4 ) 6 - ) 14, ) 4 / - ) 4 4 ) / FIGURE 1 - TYPICAL INDOOR UNIT APPLICATIONS ) * ) 1 * ) , -, * - + ) * , 6 * , , -, 9 The indoor units are built in a single cabinet with one condensate drain pan. These units can be installed in either the vertical or horizontal position for maximum flexibility. Units can be lifted using nylon straps with hooks at the holes provided in the base rails, or they may be lifted with a forklift through the slotted openings in the base rails. A quality appearance and low sound levels make these units suitable for most ground level locations. NOTE: NOTE: NOTE: NOTE: On vertical applications, the air velocity across the indoor coil keeps the condensate from dripping off the finned surface onto the filters. On horizontal applications the unit must be installed with the condensate drain pan under the entire indoor coil. The Supply Air Plenum and the Return Air Grille accessories can be used on either arrangement. The Base accessory can only be used on the vertical arrangement. CONDENSER ONLY CAPACITY Model HB Suction Temperature of Air on Condenser Coil, ºF Press. & PSIG ºF MBH KW* MBH KW* MBH KW* MBH KW* MBH KW* MBH KW* *Power consumption includes outdoor fans and compressors only. Unitary Products Group 3

4 FIGURE 2 - INDOOR PRODUCT NOMENCLATURE Model # Model Number Description Options YORK INDOOR PRODUCT NOMENCLATURE H A 120 C 0 0 A 2 A A A 1 A H Product Category H = Air Conditioner Split System E = Heat Pump Split System A 120 Product Identifier Nominal Cooling Capacity MBH A = R-22 Standard Efficiency 2-Pipe B = R-22 Standard Efficiency 4-Pipe 090 = 7-1/2 Ton 120 =10 Ton 150 = 12-1/2 Ton 180 = 15 Ton 240 = 20 Ton C Heat Type C = Cooling Only 00 Nominal Heating Capacity 00 = No Heat Installed A Airflow Options A = Standard Motor 2 Voltage A AA Installation Options Additional Options 2 = 208/ = A = None B = Disconnect AA = None AC = Technicoat Coil 300 = 25 Ton * 360 = 30 Ton * 480 = 40 Ton * 600 = 50 Ton * 5 = Product Generation 1 = 1 st Generation 2 = 2 nd Generation A Product Style A = Style A B = Style B *NOT AVAILABLE IN HEAT PUMP OUTDOOR UNIT Every unit includes 2 heavy-duty scroll compressors, 2 outdoor fan motors with inherent protection, subfusing and a copper tube/aluminum fin coil. All controls are located in the front of the unit in the control box and are readily accessible for maintenance, adjustment and service. All wiring (power and control) can be made through the front of the unit. ACCESSORIES (FACTORY & FIELD INSTALLED Factory installed Non-Fused Disconnect for safety and convenience. Factory installed Technicoat Condenser Coils for corrosion protection. Field Installed VFD (Variable Frequency Drive) for Low Ambient operation down to 0 F. Field Installed Hot Gas Bypass for low load operation. Field installed Pump-Out Kit for applications where liquid slugging could be an issue. 4 Unitary Products Group

5 FIGURE 3 - INDOOR PRODUCT NOMENCLATURE Model # Model Number Description Options YORK INDOOR PRODUCT NOMENCLATURE L A 120 C 0 0 A 2 A A A 1 A L Product Category L = Air Handling Unit- Cooling F = Air Handling Unit- Heat Pump A Product Identifier 120 Nominal Cooling Capacity MBH A = R-22 Standard Efficiency 2-Pipe B = R-22 Standard Efficiency 4-Pipe 090 = 7-1/2 Ton 120=10 Ton 150 = 12-1/2 Ton 180 = 15 Ton 240 = 20 Ton C Heat Type C = Cooling Only 00 Nominal Heating Capacity 00 = No Heat Installed 300 = 25 Ton * 360 = 30 Ton * 480 = 40 Ton * 600 = 50 Ton * 2 Voltage 0 = None 5 = = 208/ A Factory Options A = None AA Special Options AA = None 1 Generation 1 = First Generation 2 = Second Generation A Style A = Style A B = Style B INDOOR UNIT Every unit includes a well-insulated cabinet, copper tube/aluminum fin coil with interlaced circuiting arrangement, 2" throwaway filters, adjustable TXV s and centrifugal blowers. Blower motors and drive kits are ordered separately. The controls include 208/230/460 or 575 volt transformer, blower motor contactor and relay, and a low voltage terminal block. The units are shipped in the vertical position ready for field installation. For horizontal installation, the blower module can be repositioned in the field as shown on pages 3 and 6 for maximum flexibility. ACCESSORIES INDOOR UNIT (FIELD INSTALLED) Supply Air Plenums and Return Air Grilles (expanded metal) accessories are available for free-standing indoor (15 Ton units only) units located in the conditioned space. Both accessories are finished to match the exterior of the basic unit, and both can be applied with either vertical or horizontal units. The supply air plenums are fully insulated and have double-deflection, adjustable grilles. Base Sections are available to raise vertical indoor units above the floor. Outdoor air may be introduced through these bases by cutting an access opening for the outdoor air duct connection. These bases are finished to match the exterior of the basic unit. They may have to be insulated in the field for certain applications. Suspension Kit is available for indoor units installed horizontally. Manual and electronic two stage thermostats are available for cooling applications. Both thermostats have a two-position fan switch, AUTO and ON to provide intermittent or continuous blower operation. Unitary Products Group 5

6 FIGURE 4 - VERTICAL ARRANGEMENTS - LB180 AND LB240 FIGURE 5 - HORIZONTAL ARRANGEMENTS - LB180 AND LB240. CERTAIN BLOWER POSITIONS ARE NOT RECOMMENDED BECAUSE THE BLOWER MOTOR SHOULD NOT BE MOUNTED UPSIDE DOWN. 6 Unitary Products Group

7 TABLE 1: UNIT APPLICATION DATA Application Limitations Minimum Maximum Voltage Variation (208/ ) - Volts Voltage Variation ( ) - Volts Voltage Variation ( ) - Volts Ambient Air on Outdoor Coil (Cooling Cycle) - F Ambient Air on Indoor Coil (Cooling Cycle) - F TABLE 2: ARI RATINGS - COOLING AND SOUND Model Cooling Capacity 1 Cond. Unit Sound 2 Rated Airflow Rated ESP Outdoor Unit Indoor Unit MBH EER IPLV db CFM IWG HB180 KB HB240 KB Ratings are in accordance with ARI standard 340/ Ratings are in accordance with ARI standard 370. TABLE 3: ELECTRICAL DATA COMPRESSORS Model Number Power Supply Compressors System 1 System 2 RLA LRA RLA LRA HB / HB HB HB / HB HB TABLE 4: ELECTRICAL DATA FAN MOTORS Model Number Power Supply Condenser Fans HB / HB HB HB / HB HB TABLE 5: ELECTRICAL DATA, OUTDOOR MCA & MAX. FUSE SIZE Qty. FLA ea. Model Number Power Supply Min. Circuit Ampacity Max. Fuse Size 1 HB / HB HB HB / HB HB Maximum fuse or maximum circuit breaker (HACR type per NEC). Unitary Products Group 7

8 TABLE 6: OUTDOOR UNIT PHYSICAL DATA Description HB180 Unit Model HB240 Compressor1 Rating - (Qty) Tons 2 X 7.5 = 15 Tons 2 X 10 = 20 Tons Quantity 2 2 Diameter - inches Fans Blades/Pitch ( ) 3/34 3/32 Nominal CFM 12,400 11,400 Fan Motors 2 RPM HP Rows Deep X Rows High 2 X 30 2 X 30 Finned Length - inches each slab Coil Face Area - square feet (both slabs) Tube(Copper) OD - inches 3/8 3/8 Fins(Aluminum) per inch Holding Charge (sys1/sys2) / 1-0 lbs. 1-0 / 1-0 lbs. Refrigerant - 22 (lbs -oz.) Operating Charge (sys1/sys2) /14.0 lbs. 17.0/17.0 lbs. Unit Weight (lbs) Shipping Operating These compressors are fully hermetic. 2. The ball bearing, 56 frame, single phase condenser fan motors have internal protection and are directly connected to the condenser fans. Motor rotation is counterclockwise when viewing the lead end, which is opposite the shaft end. 3. The amount of charge in the unit as shipped from the factory. 4. Total operating charge for the condensing unit, matching indoor unit, and 25 feet of interconnecting pipe. TABLE 7: INDOOR UNIT PHYSICAL DATA Coil Centrifugal Blower (Forward Curve - Qty) Unit Model Description LB180 LB240 Rows Deep X Rows High 3 X 32 3 X 40 Finned length- Inches Face Area - Square Feet Tube (Copper) OD - Inches 3/8 3/8 Fins (Aluminum) per Inch Diameter X Width - Inches 15 X X 18-2 Blower Motor 1 HP Field Installed RPM Filters (Throwaway) Unit Weight (lbs) Accessory Operating Weight (lbs) Quantity Per Unit 4/4 10 Size - Inches 20 X 21 X 2 & 22 X 24 X 2 20 X 25 X2 Total Face Area - Square Feet Shipping Operating HP Motor & Drive 5HP Supply Air Plenum 185 N/A Return Air Grille 25 N/A Base Refer to Table 23 and 25 for more information. 8 Unitary Products Group

9 C All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request. A OUTDOOR UNIT DIMENSIONS Dimensions (In.) Unit A B C B 15 Ton Ton TABLE 8: CONNECTIONS Connection Entry Connection Size 15 Ton 1 20 Ton 1 Suction Line 1-1/8 ID 1-3/8 ID Liquid Line 5/8 ID 5/8 ID TABLE 9: UNIT CLEARANCES Location Dimensions Overhead (Top) Front access panels 36 Left Side 30 Right Side 30 Power Wiring 2-1/8 KO 2-1/8 KO Control Wiring 7/8 KO 7/8 KO 1. Refer to Tables 13 and 14 for appropriate suction and liquid line sizes. TABLE 10: HB CORNER WEIGHTS AND CENTER OF GRAVITY Rear 24 Bottom 2 1. Units must be installed outdoors. Overhanging structures or shrubs should not obstruct condenser air discharge. 2. Adequate snow clearance must be provided if winter operation is expected. 0 UNIT SIZE SHIPPING WEIGHT OPERATING WEIGHT A B C D UNIT LENGTH UNIT WIDTH DIM X DIM Y 15 Ton Outdoor Ton Outdoor D C WIDTH CG DIM Y A B DIM X LENGTH FIGURE 6 - CORNER WEIGHT Unitary Products Group 9

10 FIGURE 7 - PIPING AND ELECTRICAL CONNECTION LOCATIONS TABLE 11: PIPING AND ELECTRICAL CONNECTION SIZES CONNECTION ENTRY SIZE A SUCTION LINE SYS. #1 1-1/8 ID (15 Ton); 1-3/8 ID (20 Ton) B LIQUID LINE SYS. #1 5/8 ID C SUCTION LINE SYS. #2 1-1/8 ID (15 Ton); 1-3/8 ID (20 Ton) D LIQUID LINE SYS. #2 5/8 ID E POWER WIRING 2 KO F CONTROL WIRING 7/8 KO 10 Unitary Products Group

11 REFRIGERANT PIPING GENERAL GUIDELINES Many service problems can be avoided by taking adequate precautions to provide an internally clean and dry system and by using procedures and materials that conform with established standards. Use hard drawn copper tubing where no appreciable amount of bending around pipes or other obstructions is necessary. Use long radius ells wherever possible with one exception - small radius elbows for the traps in all vapor risers. If soft copper is used, care should be taken to avoid sharp bends which may cause a restriction. Pack fiber glass insulation and a sealing material such as permagum around refrigerant lines where they penetrate a wall to reduce vibration and to retain some flexibility. Support all refrigerant lines at minimum intervals with suitable hangers, brackets or clamps. Insulate all vapor lines with a minimum of 1/2" ARMA-FLEX or equal. Liquid lines exposed to direct sunlight and/or high temperatures must also be insulated. Never solder vapor and liquid lines together. They can be taped together for convenience and support purposes, but they must be completely insulated from each other. LINE SIZING When sizing refrigerant lines for a split-system air conditioner, check the following: 1. Suction line pressure drop due to friction at full capacity, 2. Liquid line pressure drop due to friction at full capacity, 3. Suction line velocity for oil return at part capacity, and 4. Liquid line pressure drop due to static head. NOTE: Never base refrigerant line sizes on the OD of the suction and liquid connections on the unit. Tables 13 and 14 list friction losses for both the suction and liquid lines on the system. Table 12 shows the amount of refrigerant charge required per foot of refrigerant line. When the evaporator coil is below the condensing unit, the suction line must be sized for both pressure drop and for oil return. For certain piping arrangements, different suction line sizes may have to be used. The velocity of the suction gas must always be great enough to carry oil back to the compressor. When the condensing unit is below the evaporator coil, the liquid line must be designed for the pressure drop due to both friction loss and vertical rise. If the total pressure drop exceeds 40 psi, some refrigerant may flash before it reaches the thermal expansion valve. This flashing will not only cause erratic valve operation and poor system performance, but could also damage the expansion valve. TABLE 12: REFRIGERANT LINE CHARGE 1 Refrigerant Line 2 Line Size O.D. (in.) Refrigerant Charge (lb./ft.) Liquid 5/ Vapor 1-1/8 1-3/ Charges are based on 40 F suction temperature and 105 F liquid temperature. 2. Type L copper tubing. Unitary Products Group 11

12 TABLE 13: SUCTION LINES 1 2 Model Designation Nominal Capacity (Tons) Refrigerant Flow Rate 3 (Lbs./ Min.) Copper Tubing (Inches, O.D.) Refrigerant Gas Velocity (Ft./Min.) Friction Loss 4 5 (PSI/100 Ft.) 1 1/ System # 1 7 1/ / HL-15 4-Pipe System 1 5/ / System # 2 7 1/ / / / System # / HL-20 4-Pipe System 1 5/ / System # / / All horizontal suction lines should be pitched at least 1 inch every 20 feet in the direction of the refrigerant flow to aid the return of oil to the compressor. 2. Every vertical suction riser greater than 25 feet in height should have a P trap at the bottom to facilitate the return of oil to the compressor. Use short radius fittings for these traps. 3. Based on Refrigerant-22 at the nominal capacity of the condensing unit, a saturated suction temperature of 45 F and a liquid temperature of 110 F. 4. Although suction lines should be sized for a friction loss equivalent to a 2 F change in saturation temperature (or approximately 3psi), sizing the lines for the proper return of oil is more important. 5. These friction losses do not include any allowances for valves or fittings. TABLE 14: LIQUID LINES Model Designation Nominal Capacity (Tons) Refrigerant Flow Rate 1 (Lbs./Min.) Copper Tubing (Inches, O.D.) Friction Loss 2 3 (PSI/100 Ft.) Vertical Rise (PSI/Ft.) HL-15 4-Pipe System System # 1 7 1/ System #2 7 1/ / / / / HL-20 4-Pipe System System # System # / / / / Based on Refrigerant-22 at the nominal capacity of the condensing unit, a saturated suction temperature of 45 F and a liquid temperature of 110 F. 2. The total pressure drop of the liquid line for both friction and vertical rise must not exceed 40 PSI. If the pressure drop exceeds 40 PSI, the liquid refrigerant could flash before it reaches the expansion valve. This flashing will not only cause erratic valve operation and poor system performance, but could also damage the expansion valve. 3. These friction losses do not include any allowances for a strainer, filter-drier, solenoid valve, isolation valve or fittings. 12 Unitary Products Group

13 TABLE 15: 15 TON CAPACITY TABLE - 85 AND 95 F 15 Ton Capacity Tables HB180 Matched with LB180 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 85 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) CFM TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR 15 Ton Capacity Tables HB180 Matched with LB180 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 95 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) CFM TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR Unitary Products Group 13

14 TABLE 16: 15 TON CAPACITY TABLE AND 115 F 15 Ton Capacity Tables HB180 Matched with LB180 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 105 CFM W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER 86 (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR 15 Ton Capacity Tables HB180 Matched with LB180 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 115 CFM W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR 14 Unitary Products Group

15 TABLE 17: 15 TON CAPACITY TABLE F 15 Ton Capacity Tables HB180 Matched with LB180 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 125 CFM W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR Unitary Products Group 15

16 TABLE 18: 20 TON CAPACITY TABLE - 85 AND 95 F CFM Ton Capacity Tables HB240 & LB240 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 85 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR CFM Ton Capacity Tables HB240 & LB240 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 95 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR 16 Unitary Products Group

17 TABLE 19: 20 TON CAPACITY TABLE & 115 F CFM Ton Capacity Tables HB240 & LB240 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 105 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR CFM Ton Capacity Tables HB240 & LB240 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 115 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR Unitary Products Group 17

18 TABLE 20: 20 TON CAPACITY TABLE F CFM Ton Capacity Tables HB240 & LB240 AIR ON EVAPORATOR OUTDOOR AMBIENT TEMPERATURE (F): 125 W.B. GROSS INPUT GROSS SENSIBLE CAPACITY (MBh) TEMP CAP. POWER (RETURN AIR DRY BULB TEMP.- (F) (F) (MBh) (kw) #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A #N/A Indicates Nominal Capacity Rating Point. INPUT POWER INCLUDES THE CONDENSER AND COMPRESSOR MOTORS BUT NOT THE INDOOR BLOWER MOTOR TABLE 21: LB TON AIRFLOW TABLE 0.4 ESP 0.6 ESP 0.8 ESP 1 ESP 1.2 ESP 1.4 ESP CFM RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw Denotes use of 5 hp motor with high static pulley kit. Note: Airflow tables based on 2 filters, dry evaporator coil TABLE 22: LB TON AIRFLOW TABLE 0.4 ESP 0.6 ESP 0.8 ESP 1 ESP 1.2 ESP 1.4 ESP CFM RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw RPM BHP kw Denotes use of high static pulley option. Note: Airflow tables based on 2 filters, dry evaporator coil 18 Unitary Products Group

19 15 TON BLOWER PERFORMANCE ESP CFM FIGURE 8-15 TON BLOWER PERFORMANCE TON BLOWER PERFORMANCE ESP CFM FIGURE 9-20 TON BLOWER PERFORMANCE Unitary Products Group 19

20 TABLE 23: BLOWER DRIVE DATA Drive Data Unit Model Adj. Motor Pulley Fixed Blower pulley Belts Model Number Blower RPM Range Datum Dia. (In.) Bore (In.) Datum Dia. (In.) Bore (In.) Qty. Designation 1LD / /16 1 A57 LB180 1LD / /16 2 A55 1LD / /16 2 A63 LB240 1LD / /16 2 A68 TABLE 24: BLOWER DATA Unit Model Blower Motor Data 1 HP Model Number Frame size Voltage (3PH-60Hz.) Model Number Drive Data Blower RPM Range LB LR /230/ LD LR LD LR LD LR /460 1LD LD LP LD LB LR LR /230/460 2LP LD LD LD LD LD LD Three-phase motors will always be wired for 460 volt power supply. Refer to the wiring diagram inside the motor terminal box. TABLE 25: INDOOR ELECTRICAL RATINGS Model Number Blower Motor HP Power Supply FLA Minimum Circuit Ampacity Max. Fuse Size 1 LB LB Maximum fuse or maximum circuit breaker (HACR type per NEC) Unitary Products Group

21 TABLE 26: INDOOR UNIT WEIGHTS AND CORNER WEIGHTS Unit Size Position Shipping Weight Operating A B C D Unit Length Unit Width 15 Ton Indoor Horizontal Ton Indoor Vertical Ton Indoor Horizontal Ton Indoor Vertical NOTE: All dimensions in inches. D C 20 Ton Motor Location Return Air Supply Air A B 15 Ton Motor Location Horizontal Application Corner Weights FIGURE 10 - HORIZONTAL APPLICATION CORNER WEIGHTS Supply Air 20 Ton Motor Location 15 Ton Motor Location Return Air (Rear Corner) D A B C FIGURE 11 - VERTICAL APPLICATION CORNER WEIGHTS Unitary Products Group 21

22 7/8 KNOCKOUTS FOR POWER AND CONTROL WIRING AIR OUT M K L K AIR OUT 5/8 5/8 F J G D C H KNOCKOUT FOR LIQUID PIPING E LESS BOTTOM { PANEL EVAPORATOR COIL SECTION AIR IN A B AIR IN BLOWER SECTION KNOCKOUT FOR DRAIN PIPING KNOCKOUT FOR SUCTION PIPING D 5/8 Panel LB 180 Piping Connection Dimensions 1-3/4 Knockout for Liquid Piping 1-3/4 Hole for Suction Piping 3-3/8 4-5/ /8 12-1/4 5-1/4 3-1/2 D 5/8 BOTTOM PANEL 1-3/8 Knockout for Liquid Piping 1-3/4 Hole for Suction Piping 3-3/ / /16 2-7/ / /64 3-1/2 LB 240 Piping Connection Dimensions FIGURE 12 - UNIT DIMENSIONS LB180 AND LB240 TABLE 27: UNIT DIMENSIONS LB180 AND LB240 MODEL A B C D E F G H J K L M LB / / / /8 12-7/ / /4 LB /8 95-5/8 33-1/4 36-5/8 73-1/4 2-1/2 18-7/8 16-1/ / / /16 22 Unitary Products Group

23 FIGURE 13 - LB180 SUPPLY AIR PLENUM DIMENSIONS 1 1. Shipped knocked down for field assembly FIGURE 14 - RETURN AIR GRILLE FOR LB180 DIMENSIONS Unitary Products Group 23

24 GUIDE SPECIFICATIONS EVAPORATOR - LA300, LB180, 240, 360, 480 & 600 EACH UNIT SHALL BE: covered by a 1-year limited parts warranty on the complete unit. In current production with published literature available to check performance, limitations, specifications, power requirements, dimensions, operation and appearance, and equipped with a V-belt drive option that will permit the blower RPM to be adjusted to meet the exact CFM requirement of the system. EACH UNIT SHALL HAVE: a steel angle frame to provide the rigid support required for shipping, rigging and years of dependable operation; exterior panels of 18 gauge steel, finished with baked enamel to provide a long-lasting quality appearance; removable panels to provide easy access to the internal components for maintenance and service; and, A filter rack with 2 filters THE DIMENSIONS OF EACH UNIT SHALL NOT EXCEED THOSE SPECIFIED. THE BLOWER MOTOR SHALL: be mounted within the insulated cabinet t minimize the transmission of sound to the surrounding space, and Have a service factor of THE EVAPORATOR COIL SHALL: Consist of copper tubes arranged in staggered rows, mechanically expanded into aluminum fins, be drawthrough, and include factory-mounted distributors, expansion valves and solenoid valves for both capacity reduction and pump down. THE BLOWER WHEELS SHALL BE: Dynamically balanced to minimize the levels of sound and vibration generated by the unit. CONDENSER - LA300, LB180, 240, 360, 480 & 600 EACH UNIT SHALL BE: ETL and cetl approved. completely assembled for one-piece shipping and rigging. leak pressure and functionally tested at the factory to assure a trouble-free start-up after installation. covered by a 1-year limited parts warranty on the complete unit. EACH UNIT SHALL HAVE: a steel angle frame to provide the rigid support required for shipping, rigging and years of dependable operation. zinc-coated steel that has been finished by a powder paint process to provide a long-lasting, quality appearance. removable panels for easy access to all internal components during maintenance and service. THE DIMENSIONS OF EACH UNIT SHALL NOT EXCEED THOSE SPECIFIED IN THE PLANS. EACH COMPRESSOR SHALL BE: mounted on isolators to minimize the transmission of vibration. ALL CONDENSER COILS SHALL BE: draw thru design. constructed of copper tubes arranged in staggered rows and mechanically expanded into aluminum fins. THE CONDENSER FAN MOTOR(S) SHALL: be directly connected to the condenser fans. have permanently lubricated ball bearings. have inherent overload protection. be three phase. be arranged for vertical discharge of the condenser air. THE WIRING FOR EACH UNIT SHALL INCLUDE: a crankcase heater (one per compressor). all 24-volt temperature control circuit. both high and low pressure cutouts. Solid-state or internal line break compressor motor protection. Condenser fan motor control to assure stable operation at ambient temperature down to 40 F. THE REFRIGERANT PIPING OF EACH SYSTEM SHALL INCLUDE: a filter-drier shipped separately for field installation. a liquid line, moisture-indicating, sight glass shipped separately for field installation. liquid line and suction line valve shipped separately for field installation. Subject to change without notice. Printed in U.S.A. Copyright 2004 by Unitary Products Group. All rights reserved B-0804 Supersedes: A-0204 Unitary 5005 Norman Products York OK Group Drive 73069