STANDARD EFFICIENCY PACKAGE A/C UNIT to 216 MBtuh

Transcription

1 PAS Product Specifications STANDARD EFFICIENCY PACKAGE A/C UNIT - 74 to 26 MBtuh REFRIGERATION CIRCUIT All models are equipped with high efficiency scroll compressor on each circuit. Dual, electrically and mechanically independent circuits. Refrigerant filter drier and evaporator freeze thermostat High and Low pressure switches for excellent compressor protection. BUILT TO LAST Pre--painted galvanized steel cabinet for long life and quality appearance. Commercial strength base rails with built--in rigging capability. Non--corrosive, sloped condensate drain pan, meets ASHRAE EASY TO INSTALL AND SERVICE Electric cooling, self contained for year-round comfort. Unit shipped ready for downflow applications with conversion to horizontal airflow accomplished with accessory horizontal discharge roof curb. Thru--the--base utility connections. 2% Manual outside air damper. WARRANTY Year compressor limited warranty Year parts limited warranty UNIT PERFORMANCE DATA Model Number * COOLING Rated Capacity BTUH E.E.R IPLV Unit Dimensions HXWXL PAS80H000A 74, x 86 -/8 x 87 -/8 00 PAS80L000A 74, x 86 -/8 x 87 -/8 00 PAS80S000A 74, x 86 -/8 x 87 -/8 00 PAS20H000A 88, x 86 -/8 x 87 -/8 60 PAS20L000A 88, x 86 -/8 x 87 -/8 60 PAS20S000A 88, x 86 -/8 x 87 -/8 60 PAS240H000A 26, /4 x 86 -/8 x 87 -/8 70 PAS240L000A 26, /4 x 86 -/8 x 87 -/8 70 PAS240S000A 26, /4 x 86 -/8 x 87 -/8 70 * Unit voltage: H = 208/20v, L = 460v, S = 7v Unit Weight /24/07

2 Table of Contents Page Features/Benefits... Model Number Nomenclature... 2 Unit Specifications Dimensions Performance Data Typical Installations... Accessories Operating Sequence... 9 Application Data... 9 Guide Specifications... 9 MODEL NUMBER IDENTIFICATION GUIDE MODEL NUMBER P A S 80 H 000 A PRODUCT FAMILY Package Units TYPE H= Heat Pump G = Gas/Electric A = Air Conditioner OPTIONS VOLTAGE / PHASE / HERTZ H = 208/ Sales Code DESIGN SERIES L = S = COOLING CAPACITY (NOMINAL BTUH) 80 = Ton 20 = 7--/2 Ton 240 = 20 Ton 2

3 UNIT SPECIFICATIONS - MODELS COOLING PAS80H PAS80L PAS80S PAS20H PAS20L PAS20S ARI Rated Capacity Btuh (Net) 74,000 26,000 Nominal Tons 7 -/2 Standard CFM EER IPLV Sound Rating (Bels) Base Unit Operating Weights (lbs) ELECTRICAL Volts/ Phase/ 60Hertz 208/ / Voltage Range Min/Max 87 / 2 44 / 08 8 / / 2 44 / 08 8 / 62 Power Supply MCA 7.2 / / 8 4 Power Supply MOCP* 90 / / COMPRESSOR SCROLL Quantity...Model (2)...SR*942AE ()...SM20 / ()...SR*782AE No.ofCircuits 2 2 RLA / LRA Circuit # 2.6 / 90. / / 7.0 / / / 8 Circuit #2 2.6 / 90. / / / / / 7 Oil (Oz.) per circuit 90, 90 0, 72 REFRIGERATION TYPE R-22 Expansion Device TXV TXV Operating Charge (lb. oz. ) ** CKT = 0 - CKT 2 = 0 - CKT = -2 CKT 2 = - CONDENSER FAN Propeller Type Nominal CFM 0, Quantity..Diameter (in.) Motor Hp...RPM (each) / / Watts Input (Total) FLA CONDENSER COIL Cross Hatched /8 in. Copper Tubes, Aluminum Lanced Rows...Fin/In Total Face Area (Sq. Ft..) EVAPORATOR COIL Cross Hatch /8 in. Copper Tubes, Aluminum Lanced, Face Split Rows...Fins/Inche Total Face Aea (sq. ft.) EVAPORATOR FAN Centrfugal Type Quantity...Size (in.) x x x 2 Type Drive Belt Belt Belt Nominal CFM Motor Hp, RPM, Max. Continuous Bhp.7, 72, 4.2.7, 72, 4.2.0, 72,.4, 74,.9, 74,.9, 74,.9 FLA (Each) 0. / / Motor Frame Size 6H 6H 84T Fan RPM Range Motor Bearing Ball Ball Ball Maximum Allowable RPM Motor Pulley Pitch / Diameter Min/Max. (in.) Motor Shaft Diameter (in.) 7/8 7/8 -/8 Fan Pulley Pitch Diam (in) Belt, Quantity...Type... Length (in.).bx.42.bx.4.bx.0 Pulley Center Line Distance (in) Speed Change per Full Turn of Movable Pulley Flange (RPM) Pulley Max. full Turns From Closed Postion Factory Setting... Factory Speed Setting RPM Fan Shaft Diam. at Pulley -/6 -/6-7/6 SEE LEGENDS AND NOTES ON FOLLOWING PAGES

4 UNIT SPECIFICATIONS - MODELS COOLING PAS240H PAS240L PAS240S ARI Rated Capacity Btuh (Net) 26,000 Nominal Tons 20 Standard CFM 6600 EER 8.6 IPLV 8.4 Sound Rating (Bels) 9. Base Unit Operating Weights (lbs) 77 ELECTRICAL Volts/ Phase/ 60Hertz 208/ Voltage Range Min/Max 87 / 2 44 / 08 8 / 62 Power Supply MCA 09 / Power Supply MOCP* 2 / COMPRESSOR SCROLL Quantity...Model ()...SM20 / ()...SM0 No.ofCircuits 2 RLA / LRA Circuit #.0 / / / 8 Circuit #2 29. / / 0. / 8 Oil (Oz.) per circuit 0, 0 REFRIGERATION TYPE R-22 Expansion Device TXV Operating Charge (lb. oz. ) ** CKT = 6 - CKT 2 = -8 CONDENSER FAN Propeller Type Nominal CFM,60 Quantity..Diameter (in.) Motor Hp...RPM (each)...07 Watts Input (Total) 400 FLA CONDENSER COIL Cross Hatched /8 in. Copper Tubes, Aluminum Lanced Rows...Fin/In.... Total Face Area (Sq. Ft..) 2.7 EVAPORATOR COIL Cross Hatch /8 in. Copper Tubes, Aluminum Lanced, Face Split Rows...Fins/Inche... Total Face Aea (sq. ft.) 7. EVAPORATOR FAN Centrfugal Type Quantity...Size (in.) x 2 Type Drive Belt Nominal CFM 8000 Motor Hp, RPM, Max. Continuous Bhp 7., 74, , 74, 9. 7., 74, 8.7 FLA (Each) 2.0 / Motor Frame Size 2T Fan RPM Range Motor Bearing Ball Maximum Allowable RPM 0 Motor Pulley Pitch / Diameter Min/Max. (in.) Motor Shaft Diameter (in.) -/8 Fan Pulley Pitch Diam (in) 9.4 Belt, Quantity...Type... Length (in.).bx.4 Pulley Center Line Distance (in) Speed Change per Full Turn of Movable 7 Pulley Flange (RPM) Pulley Max. full Turns From Closed Postion Factory Setting. Factory Speed Setting RPM 20 Fan Shaft Diam. at Pulley -7/6 SEE LEGENDS AND NOTES ON FOLLOWING PAGES 4

5 UNIT SPECIFICATIONS (CONT) MODELS PAS80 PAS20 PAS240 HIGH- PRESSURE SWITCH (psig) Internal Relief (Differential) Cutout Reset (Auto.) LOSS- OF- CHARGE SWITCH (psig) (LOW- PRESS.) Cutout Reset (Auto.) FREEZE PROTECTION THERMOSTAT (F) Opens 0 +/-- 0 +/-- 0 +/-- Closes 4 +/-- 4 +/-- 4 +/-- RETURN- AIR FILTERS (THROWAWAY) Quantity...Size (in.) x 20 x x 20 x x 20 x x 20 x x 20 x x 20 x 2 LEGEND Bhp = Brake Horsepower TXV = Thermostatic Expansion Valve Bels -- Sound Levels EER -- Energy Efficiency Ratio IPLV -- Integrated Part Load Values MCA -- Minimum Circuit Amps MOCP -- Maximum Over--current Protection FLA -- Full Load Amps LRA -- Locked Rotor Amps RLA -- Rated Load Amps * -- Fuse or HACR circuit breaker LEGENDS AND NOTES NOTES:. In compliance with NEC requirements for multimotor and combina-- tion load equipment (refer to NEC Articles 40 and 440), the over-- current protective device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker. 2. Unbalanced -Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent voltage imbalance. % Voltage Imbalance = 00 x max voltage deviation from average voltage average voltage NOTES:. Rated in accordance with ARI Standards 20/240, latest revision (for sizes 090 & 20) or 60, latest revision (for size 0). 2. ARI ratings are net values, reflecting the effects of circulating fan heat.. Ratings are based on: Cooling Standard: 80F db, 67F wb indoor entering air temperture and 9F db air entering outdoor unit. IPLV Standard: 80F db, 67F wb indoor entering air temperture and 80F db entering air temperature. EXAMPLE: Supply voltage is AB = 42 v Average Voltage = BC = 464 v AC = 4 v 7 = = 47 Determine maximum deviation from average voltage. (AB) = V (BC) = 7 V (AB) = 2 V Maximum deviation is 7 v. Determine percent voltage imbalance. % Voltage Imbalance = 00 x 7 47 =.% This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%. IMPORTANT : If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

6 BASE UNIT DIMENSIONS - PAS80, 20 Unit Total Weight Corner A Corner B Corner C Corner D Dim X Dim Y lb kg lb kg lb kg lb kg lb kg inches mm inches mm PAS PAS NOTES:. Dimensions in () are in millimeters. 2. Center of Gravity.. Direction of Airflow 8 / 8 4. Ductwork to be attached to accessory roof curb only.. Minimum clearance: Rear: 84 (24) for coil removal. This dimension can be reduced to 48 (29) if conditions permit coil removal from the top. Left side: 48 (29) for proper condenser coil airflow. Front: 48 (29) for control box access. Right Side: 48 (29) for proper operation of damper and power exhaust if so equipped. Top: 72 (829) to assure proper condenser fan operation. Local Codes jurisdiction may prevail. 6. With the exception of clearance for the condenser coil and the damper/power exhaust as stated in Note #, a removeable fence or barricade requires no clearance. 7. Dimensions are from outside of corner post. Allow 0--/6 (8) on each side for top cover drip edge. 7 /8 D 8 2 / / 8 DIA. Hole 9 / 6 6 / 6 0 / / 6 / 6 A /6 4 /6 / 6 2 / DIA. HOLE TYPICAL 2 TYPICAL 4 CORNERS / 4 DIA. HOLE TYPICAL 2 / 6 (X) 67 / 6 Condensing Coil 0 / 6 C (Y) Supply Air & K.o. 2 DIA. K.o. / 8 Return Air 69 7 /8 DIA. Hole 7 7 / 8 B / 6 / / 8 0 / / 7 / 8 & 7 / 8 DIA. K.o. (Field Power) / 8 & / 8 DIA. K.o. (Field Power) 7 /8 DIA. K.o. (Controls) Control Box Access 22 / 6 4 TYP / 2 2 TYP Evaporator Coil / Filters Access Far Side FTP Drain Connection 4 Far Side Only / 6 7 / 6 8 / / 6 Alternate Return a 6

7 BASE UNIT DIMENSIONS - PAS240 Unit Total Weight Corner A Corner B Corner C Corner D Dim X Dim Y lb kg lb kg lb kg lb kg lb kg inches mm inches mm PAS NOTES:. Dimensions in () are in millimeters. 2. Center of Gravity.. Direction of Airflow 4. Ductwork to be attached to accessory roof curb only.. Minimum clearance: Rear: 84 (24) for coil removal. This dimension can be reduced to 48 (29) if conditions permit coil removal from the top. Left side: 48 (29) for proper condenser coil airflow. Front: 48 (29) for control box access. Right Side: 48 (29) for proper operation of damper and power exhaust if so equipped. Top: 72 (829) to assure proper condenser fan operation. Local Codes jurisdiction may prevail. 6. With the exception of clearance for the condenser coil and the damper/power exhaust as stated in Note #, a removeable fence or barricade requires no clearance. 7. Dimensions are from outside of corner post. Allow 0--/6 (8) on each side for top cover drip edge. 8 / 8 7 /8 D 8 2 / / 8 DIA. Hole 9 / 6 6 / 6 0 / / 6 / 6 A /6 4 /6 / 6 2 / DIA. HOLE TYPICAL 2 / 4 DIA. HOLE TYPICAL 2 / 6 (X) TYPICAL 4 CORNERS 67 / 6 (Y) Supply Air Return Air / 8 86 / / & 7 DIA. K.o. (Field Power) / 8 Condensing Coil 0 / 6 C & K.o. 2 DIA. K.o. / 8 7 /8 DIA. Hole B / 6 / / 4 7 / 8 / 8 & / 8 DIA. K.o. (Field Power) 7 /8 DIA. K.o. (Controls) 4 / 4 2 / Control Box Access 22 / 6 47 / 4 TYP / 2 2 TYP Evaporator Coil / Filters Access Far Side FTP Drain Connection 4 Far Side Only 7 / / 6 / / 6 Alternate Return

8 EXPANDED PERFORMANCE DATA (COOLING) Ton (Gross Capacity) Outdoor Ambient Temperature - Degrees F, Dry Bulb Airflow Entering Indoor Air Temperature - Degrees F, Wet Bulb IDB CFM (BF) MBU S/T (0.28) kw MBU S/T (0.2) kw MBU S/T (0.2) kw FORMULAS AND NOTES FOR USING EXPANDED PERFORMANCE DATA To find leaving wet bulb and dry bulb from the expanded performance charts, use the following formulas.. Direct interpolation is permissible. Do not extrapolate. 2. The following formulas may be used: t /db = t edb - sensible capacity Btuh / (.0 x cfm) t /wb = Wet bulb temp. corresponding to enthalpy of air leaving evaporator coil (h /wb) h /wb = h ewb - total capacity Btuh / (4. x cfm) where h ewb = Enthalpy of air entering evap. coil LEGEND MBH = Total Capacity (Gross) S/T = Sensible to Total Ratio KW = Compressor Motor Power Input. IDB = Indoor Dry Bulb edb = Entering Dry Bulb ewb = Entering Wet Bulb t /db = Leaving Dry Bulb t /wb = Leaving Wet Bulb h /wb = Enthalpy of Leaving Wet Bulb. The SHC is based on 80F edb of air entering evap coil. SHC = Sensible Heat Capacity Below 80F edb, subtract (corr factor x cfm) from SHC. Above 80F edb, add (corr factor x cfm) to SHC. ENTERING Entering Air AIR Dry-Bulb DRY BULB (F) Bypass BYPASS under 7 Factor 7 FACTOR over 8 (BF) 8 Correction Factor (BF) Correction Factor Use formulas shown below Correction 0.60 Factor 0.44 =.0 x 0.87 (-BF) x (edb-80) Correction Factor =.0 x (--BF) x (edb--80) 8

9 EXPANDED PERFORMANCE DATA (COOLING) 7 -/2 Ton (Gross Capacity) 9

10 EXPANDED PERFORMANCE DATA (COOLING) 20 Ton (Gross Capacity) Outdoor Ambient Temperature - Degrees F, Dry Bulb Airflow Entering Indoor Air Temperature - Degrees F, Wet Bulb IDB CFM (BF) MBU S/T (0.24) kw MBU S/T (0.2) kw MBU S/T (0.2) kw FORMULAS AND NOTES FOR USING EXPANDED PERFORMANCE DATA To find leaving wet bulb and dry bulb from the expanded performance charts, use the following formulas.. Direct interpolation is permissible. Do not extrapolate. 2. The following formulas may be used: t /db = t edb - sensible capacity Btuh / (.0 x cfm) t /wb = Wet bulb temp. corresponding to enthalpy of air leaving evaporator coil (h /wb) h /wb = h ewb - total capacity Btuh / (4. x cfm) where h ewb = Enthalpy of air entering evap. coil LEGEND MBH = Total Capacity (Gross) S/T = Sensible to Total Ratio KW = Compressor Motor Power Input. IDB = Indoor Dry Bulb edb = Entering Dry Bulb ewb = Entering Wet Bulb t /db = Leaving Dry Bulb t /wb = Leaving Wet Bulb h /wb = Enthalpy of Leaving Wet Bulb. The SHC is based on 80F edb of air entering evap coil. SHC = Sensible Heat Capacity Below 80F edb, subtract (corr factor x cfm) from SHC. Above 80F edb, add (corr factor x cfm) to SHC. ENTERING Entering Air AIR Dry-Bulb DRY BULB (F) Bypass BYPASS under 7 Factor 7 FACTOR over 8 (BF) 8 (BF) Correction Factor Use formulas shown below Correction 0.0 Factor 0.=.0 x.09 (-BF) x (edb-80) Correction Factor =.0 x (--BF) x (edb--80) 0

11 PAS SERIES EVAPORATOR FAN PERFORMANCE Airflow CFM CIRCULATING BLOWER PERFORMANCE - PAS80 - Standard Motor (Belt Drive)* EXTERNAL STATIC PRESSURE (in. wg) RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts LEGEND Watts = Input Watts to motor. Airflow based on dry coil with filters. Airflow based on dry coil with filters. Standard low--medium static drive range is 89 to 79 rpm (for 208/20, 80 and 460v units) or 9 to 429 rpm (for 7--vunits).Alternate high--static drive range is227 to9 (for 208/20, 80, and 460v units). Airflow CFM CIRCULATING BLOWER PERFORMANCE - PAS20/240 - Standard Motor (Belt Drive)* EXTERNAL STATIC PRESSURE (in. wg) RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts , LEGEND Watts = Input Watts to motor. Airflow based on dry coil with filters. Standard low--medium static drive range for the PAS20 is 90 to09 rpm.standard low--medium static drive range for the PAS240 size is 002 to 22 rpm. Alternate high--static drive range for the PAS20 size is 069 to 287. Alternate high--static drive range for the PAS240 size is 9 to 48 rpm. Other rpms require a field--supplied drive.

12 EVAPORATOR FAN DATA FOR PAS80, 20, 240 UNIT PAS80 PAS20 PAS240 EVAPORATOR FAN MOTOR DATA FOR PAS80, 20, 240 Maximum Acceptable Maximum Acceptable Unit Voltage Continuous BHP Operating Watts Maximum Amp Draw 208/20 4.2, , , /20.90, , , / , , ,9 0.0 FAN RPM AT MOTOR PULLEY SETTINGS FOR PAS80, 20, 240 MOTOR PULLEY TURNS OPEN* UNIT -/2 2 2-/2 -/2 4 4-/2 -/2 6 PAS80H,L PAS80S PAS20H,L,S PAS240H,L,S * Due to belt and pulley size, pulley cannot be set to 0 or /2. AIR QUANTITY LIMITS FOR PAS80, 20, 240 UNIT Minimum Airflow (Cfm) Maximum Airflow (Cfm) PAS PAS PAS ,000 EVAPORATOR FAN MOTOR EFFICIENCY UNIT PAS Motor Efficiecny % (7) OUTDOOR SOUND POWER SOUND RATING OCTAVE BANDS UNIT (db) PAS80 88 Bels PAS20 88 Bels PAS Bels

13 Disconnect Per NEC. 2% Air Or Economizer Hood TYPICAL INSTALLATIONS Control Wiring Power Wiring Condensate Drain Roof Curb Return Air Supply Air b

14 PAS Series ELECTRICAL DATA - ELECTRIC HEAT ACCESSORY Evap. Fan Motor Electric Heater * Power Supply Unit Voltage Qty Model Number HP FLA kw FLA MCA MOCP ** AES04EHA AES06EHA PAS AES07EHA AES04EHA AES06EHA PAS AES07EHA AES2ELA AES0ELA PAS AES080ELA AES04EHA AES06EHA PAS AES07EHA AES04EHA AES06EHA PAS AES07EHA AES2ELA AES0ELA PAS AES080ELA AES04EHA AES06EHA PAS AES07EHA AES04EHA AES06EHA PAS AES07EHA AES2ELA AES0ELA PAS AES080ELA * Heater capacity (kw) is based on heater voltage of 208 v, 240 v, 480 v, and 600 v. Heaters are rated at 240 v, 480 v, or 600 v. If power distribution voltage to unit varies from rated heater voltage, heater kw will vary accordingly. To determine heater capacity at actual unit voltage, multiply 240v, 480v, and 600v capacity by multipliers found at bottom of page. ** Fuse or HACR circuit breaker. MULTIPLICATION FACTORS Heater Rating Voltage ACTUAL HEATER VOLTAGE NOTE: The following equation converts kw of heat energy to Btuh: kw x.42 = Btuh. LEGEND FLA - Full Load Amps MCA - Minimum Circuit Amps MOCP - Maximum Overcurrent Protection LRA - Locked Rotor Amps NEC - National Electrical Code NOTES. In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 40 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or circuit breaker. 2. Ubalanced -Phase Supply Voltage - Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance. % Voltage Imbalance = 00 x (max voltage deviation from average voltage / average voltage) IMPORTANT: If the supply voltage phase imbalance is more than 2 %, contact your local electric company immediately. 4

15 ACCESSORIES VERTICAL DISCHARGE ROOF CURBS Description Model Number Where Used 4 High AXB060CMA 80, 20, High AXB060CHA 80, 20, 240 HORIZONTAL DISCHARGE ROOF CURBS Description Model Number Where Used 24 High AXB06CHA 80, 20, High w/ Duct AXB6CHA 80, 20, / 6 72 / 6 ECONOMIZER - HORIZONTAL / DOWNFLOW Description Model Number Where Used Fully Modulating AXB060EMA 80, 20, 240 Three Position AXB060EPA 80, 20, 240

16 ACCESSORIES (CONT.) COIL PROTECTION Description Model Number Where Used Coil Guard AXB060CGA 80, 20, 240 Hail Guard AXB060HGA 80, 20, 240 AXB060HGA AXB060CGA POWER EXHAUST Description Model Number Where Used 208/20 Volt AXB060PEH 80, 20, Volt AXB060PEL 80, 20, Volt AXB060PES 80, 20, 240 POWER EXHAUST PERFORMANCE DATA Motor Unit Model Volt/Phase/ Hertz Qty HP RPM Cir. Qty LRA FLA MCA Fuse CFM AXB060PEH //60 2 / ,600 AXB060PEL 460//60 2 /4 07 N/A ,600 AXB060PES 7//60 2 /4 00 N/A.0.8 9,600 6

17 ACCESSORIES (CONT.) CONCENTRIC DUCT KIT Description Model Number Where Used 8 x 6 AXB60CTA 80, x 48 AXB260CTA 240 CONCENTRIC DIFFUSER Description Model Number Used With Flush Mount AXB0CFA 80, 20 Flush Mount AXB08CFA 240 Step Down AXB0CSA 80, 20 Step Down AXB08CSA 240 G F E 4/2 H D C SEE PERFORMANCE DATA ON NEXT PAGE 2.2 DIFFUSER BOX TRANSITION BOOT 2 B A ANTI-SWEAT GASKET RETURN EGGCRATE GRILLE ALUMINUM DIFFUSER AXB0-8CFA ANTI-SWEAT GASKET F E H D DIFFUSER BOX DOUBLE DEFLECTION GRILL G C TRANSITION BOOT I J B A K RETURN EGGCRATE GRILL AXB0-8CSA DIMENSIONS Model Number A B C D E F G H I J K AXB0CFA 47-/8 47-/8 29-/ /4 8 N/A N/A N/A 8 x 6 AXB08CFA 9-/8 9-/8 -/ /4 48 N/A N/A N/A 24 x 48 AXB0CSA 47-/8 47-/8 24-/ /2 6 0-/8 4-/2 4-/2 8 x 6 AXB08CSA 9-/8 9-/8 0-/8 7-/2 7-/ /2 48 -/8 7-/2 7-/2 24 x 48 Duct Size 7

18 ACCESSORIES (CONT.) CFA SERIES PERFORMANCE DATA Part No. AXB CFM Static Pressure In. WC Throw Feet Neck Velocity FPM Jet Velocity FPM db Sound Level 0CFA CFA CSA SERIES PERFORMANCE DATA Part No. AXB CFM Static Pressure In. WC Throw Feet Neck / Jet Velocity FPM db Sound Levels 0CSA CSA CSA/CFA NOTES:. All data is based on the Air Diffusion Council guidelines. 2. Throw data is based on Terminal Velocities of 7 FPM using isothermal air.. Throw is based on diffuser blades being directed in a straight pattern. 4. Actual sound levels are less than those shown.. Minimum height 9 above floor. FRESH AIR DAMPERS Description Model Number Used With % Motorized AXB060FMA 80, 20, DAY PROGRAMMABLE COMMERCIAL THERMOSTAT Model Number Used With , 20, 240 LOW AMBIENT KIT Model Number Used With AXB60LAA 80, 20 AXB260LAA 240 PART NUMBERS FOR APPROVED HIGH STATIC CONVERSIONS* Unit Size (Tons) Voltage Motor Motor Pulley Blower Pulley & 7 -/2 208/20 & 460 No Change Belt Circuit Breaker Circuit Breaker Bracket No Change N/A N/A 7 N/A N/A N/A N/A N/A N/A 20 All Voltages No Change N/A N/A * Available thru service parts only. 8

19 OPERATING SEQUENCE Cooling, Units Without Economizer When thermostat calls for cooling, terminals G and Y are energized. The indoor (evaporator) fan contactor (IFC) and compressor contactor no. (C) are energized, and evaporator--fan motor (IFM), compressor no., and condenser fan(s) start. The condenser fan motor(s) runs continuously while unit is cooling. When the thermostat calls for a second stage of cooling by energizing Y2, compressor contactor no. 2 (C2) is energized and compressor no. 2 starts. Heating, Units Without Economizer -- If Accessory or Optional Heater is Installed) Upon a call for heating through terminal W, IFC and heater contactor no. (HC) are energized. On units equipped for 2 stages of heat, when additional heat is needed, HC2 is energized through W2. APPLICATION DATA. DUCTWORK Ductwork should be attached to the curb on all units. Interior installation may proceed before unit is set in place on roof. If ductwork will be attached to the unit, do not drill in condensate drain pan area leaks may result. See figures below for information on field--installed concentric ductwork when applicable. 2. THRU -THE -CURB SERVICE CONNECTIONS Roof curb connections allow field power wires, control wires, and gas supply to enter through the roof curb opening.. THERMOSTAT - Use of 2--stage cooling thermostat is recommended for all units. A 2--stage cooling thermostat is required on units with accessory economizer to provide integrated cooling. 4. HEATING -TO -COOLING CHANGEOVER All units are automatic changeover from heating to cooling when automatic changeover thermostat and subbase are used.. AIRFLOW Units are draw--thru on cooling and blow--thru on heating. 6. MAXIMUM AIRFLOW - To minimize the possibility of condensate blow--off from evaporator, airflow through units should not exceed 00 cfm/nominal ton on size units. 7. MINIMUM AIRFLOW The minimum airflow for cooling is 00 cfm/nominal ton on size units. 8. MINIMUM AMBIENT COOLING OPERATION TEMPERATURE - Units are designed to operate at outdoor temperatures down to 40 F. To operate at lower outdoor--air temperatures, see Trade Prices or contact your local representative for appropriate accessory combinations for specific applications. 9. MAXIMUM OPERATING OUTDOOR -AIR TEMPERATURE -- For cooling, this temperature is 20 F for 80, 2 F for 240 size, and 2 F for 00 size. Refer to Cooling Capacities tables on pages 20 and 2 for further details. 0. INTERNAL UNIT DESIGN Due to the internal unit design (draw--thru over the motor), air path, and specially designed motors, the full horsepower (maximum continuous bhp) listed in the Physical Data table and the notes following each Fan Performance table can be utilized with extreme confidence. Using motors with the values listed in the Physical and Fan Performance Data tables will not result in nuisance tripping or premature motor failure. The unit warranty will not be affected. GUIDE SPECIFICATIONS: PAS CABINET: The cabinet shall be made of sturdy baked enamel coated galvanized steel. Base rails shall be 6 gauge steel and have fork lift slots and holes provided for lifting shackles. Unit shall be designed with convertible airflow and shipped ready for downflow applications with conversion to horizontal air flow accomplished by relocating two panels. Return air compartments shall be insulated with not less than /2 of water resistant coated glass fiber and not less than /2 of aluminum foil faced glass fiber in the furnace/supply compartments. COOLING SECTION: Units shall be factory charged and operationally ready. Each refrigeration circuit shall have a compressor, with internal overload protection, high and low pressure switches, filter drier and copper tube/aluminum fin evaporator and condenser coils. Units shall be capable of cooling operation down to 2ºF as shipped from the factory. COILS: The evaporator and condenser coils shall be fabricated with aluminum fins mechanically bonded to copper tubing. Both coils shall be pressure tested prior to assembly into the unit and electronically leak tested after assembly onto the unit. The evaporator coil shall be protected from dust and debris on the return air side by factory installed 2 air filters. CONDENSER FAN: The unit shall have a single direct drive propeller fan/motor assembly mounted directly to a vertical--discharge grille panel that is easily removable. Motors shall have permanently lubricated sleeve bearings and inherent overload protection. EVAPORATOR BLOWER: The units shall have a single belt driven evaporator blower. The motor shall have permanently lubricated ball bearings and internal overload protection. An adjustable motor drive sheave for matching air flow requirements shall be standard. Additionally high static accessory kits shall be available for air flows above the standard requirement. 9