15
8/18/04 PHS156 -- 180 PRELIMINARY PHS SERIES 13 & 15 Ton Commercial Package Heat Pumps Standard--Efficiency Rooftop Units with: · Dual, Electrically and mechanically independent circuits · Scroll Compressor on each circuit · Pre--painted galvanized steel cabinet with baked enamel finish · Heavy gage roll--formed painted base rails with forklift and rigging holes. · Non--corrosive, sloped condensate drain pan, meets ASHRAE 62--89 · Two--inch return--air filters · High and low (loss--of--charge) pressure switches · Refrigerant filter drier and accumlator · Freeze Thermostat · 25% Manual Outside Air Damper · Dependable 4--way valve operation · Tool--less removal for filter access · State of the art defrost system · Fixed orifice refrigerant metering system · Thru--the--bottom utility capability allow power, control, and wiring to be routed through unit base pan, minimizing roof penetrations · Unit shipped ready for downflow applications with conversion to horizontal airflow accomplished with accessory horizontal discharge roof curb · Warranty: Five year compressor, One year parts RESIDENTIAL AND COMMERCIAL SYSTEMS · SPLIT SYSTEMS · PACKAGED AIR CONDITIONERS · COMBINATION GAS / ELECTRIC UNITS · HEAT PUMPS · AIR HANDLERS · MANUFACTURED HOME AIR CONDITIONERS · GAS, OIL AND ELECTRIC FURNACES) International Comfort Products 650 Heil--Quaker Avenue, Lewisburg, TN 37091 516 51 1601 00

PRELIMINARY...8/18/04 PHS156 -- 180 PRELIMINARY PHS SERIES 13 & 15 Ton Commercial Package Heat Pumps Standard--Efficiency Rooftop Units with: Dual, Electrically and mechanically independent

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  • 8/18/04

    PHS156 -- 180

    PRELIMINARY

    PHS SERIES13 & 15 Ton

    Commercial Package Heat Pumps

    Standard--Efficiency Rooftop Units with:� Dual, Electrically and mechanically independent circuits

    � Scroll Compressor on each circuit

    � Pre--painted galvanized steel cabinet with baked enamel finish

    � Heavy gage roll--formed painted base rails with forklift and

    rigging holes.

    � Non--corrosive, sloped condensate drain pan, meets ASHRAE 62--89

    � Two--inch return--air filters

    � High and low (loss--of--charge) pressure switches

    � Refrigerant filter drier and accumlator

    � Freeze Thermostat

    � 25% Manual Outside Air Damper

    � Dependable 4--way valve operation

    � Tool--less removal for filter access

    � State of the art defrost system

    � Fixed orifice refrigerant metering system

    � Thru--the--bottom utility capability allow power, control, andwiring to be

    routed through unit base pan, minimizing roof penetrations

    � Unit shipped ready for downflow applications with conversion to

    horizontal airflow accomplished with accessory horizontal discharge

    roof curb

    � Warranty: Five year compressor, One year parts

    RESIDENTIAL AND COMMERCIAL SYSTEMS � SPLIT SYSTEMS � PACKAGED AIR CONDITIONERS � COMBINATION GAS / ELECTRICUNITS � HEAT PUMPS � AIR HANDLERS � MANUFACTURED HOME AIR CONDITIONERS � GAS, OIL AND ELECTRIC FURNACES)

    International Comfort Products650 Heil--Quaker Avenue, Lewisburg, TN 37091

    516 51 1601 00

  • 2

    PageFeatures/Benefits 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Model Number Nomenclature 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Unit Specifications 3--4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Dimensions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Performance Data 6--9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typical Installations 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Accessories 11--14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Operating Sequence 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Application Data 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Guide Specifications 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

    Table of Contents

    MODEL NUMBER IDENTIFICATION GUIDEMODEL NUMBER P H S 180 H 000 A

    PRODUCT FAMILY Sales CodePackage Units

    OPTIONSTYPE 000 = No HeatH= Heat Pump G = Gas/ElectricA = Air Conditioner VOLTAGE / PHASE / HERTZ

    H = 208/230--3--60DESIGN SERIES L = 460--3--60

    COOLING CAPACITY (NOMINAL BTUH)156 = 13 Ton180 = 15 Ton

  • 3

    UNIT SPECIFICATIONS -- MODELSCOOLING PHS156H PHS156L PHS180H PHS180L

    ARI Rated Capacity Btuh (Net) 135,000 171,000Nominal Tons 13 15EER 9.18 8.8

    HEATINGARI Rated Capacity Btuh (Net) 131,000 175,000COP 2.9 2.9Standard CFM 4500 5200IPLV 9.1 8.87Sound Rating (Bels) 9.4 9.4Base Unit Operating Weights (lbs) 1400 1550

    ELECTRICALVolts/ 3 Phase/ 60Hertz 208/230 460 208/230 460Voltage Range Min/Max 187 / 253 414 / 508 187 / 253 414 / 508Power Supply MCA 65 32 100 49Power Supply MOCP* 70 40 110 60

    COMPRESSOR SCROLLQuantity...Model 2...ZR72KC 2...SM090No. of Circuits 2 2RLA / LRA Circuit #1 18.2 / 172 8.3 / 74 22.3 / 195 11.5 / 98

    Circuit #2 18.2 / 172 8.1 / 74 22.3 / 195 11.5 / 98Oil (Oz.) per circuit CKT 1 = 60.0 / CKT 2 = 60.0 CKT 1 = 109.9 / CKT 2 = 109.9

    REFRIGERATION TYPE R--22Expansion Device Fixed Orifice Fixed OrificeOperating Charge (lb. oz. ) ** CKT 1 = 17--10 CKT 2 = 16--7 CKT 1 = 19--6 CKT 2 = 18--12

    CONDENSER FAN Propeller TypeNominal CFM 14,000 14,000Quantity / Diameter (in.) 2 / 30 2 / 30Motor Hp / RPM (each) 1.0 / 1140 1.0 / 1140Watts Input (Total) 1956 1956FLA 4.25 2.13 4.25 2.13

    CONDENSER COIL Cross Hatched 3/8 in. Copper Tubes, Aluminum LancedRows / Fin/In. 3 / 15 4 / 13Total Face Area (Sq. Ft..) 22.22 22.22

    EVAPORATOR COIL Cross Hatch 3/8 in. Copper Tubes, Aluminum Lanced, Face SplitRows / Fins/Inche 3 / 15 3 / 15Total Face Aea (sq. ft.) 17.87 17.87

    EVAPORATOR FAN Centrfugal TypeQuantity / Size (in.) 2 / 12x12 2 / 12x12Type Drive Belt BeltNominal CFM 5000 6000Motor Quantity / Hp. / RPM / Max. Continuous Bhp 2 / 1.5 / 1760 / 3.45 2 / 2.0 / 1755 / 4.60FLA (Each) 5.0 2.5 6.56 3.30Motor Frame Size 145T 145TFan RPM Range 655 -- 916 830 -- 1090Motor Bearing Ball BallMaximum Allowable RPM 1540 1540Motor Pulley Pitch / Diameter Min/Max. (in.) 3.5 4.3Motor Shaft Diameter (in.) 7/8 7/8Fan Pulley Pitch Diam (in) 7.9 7.9Belt, Quantity...Type... Length (in.) 2...BX...47 2...BX...48Pulley Center Line Distance (in) 15.9 15.9Factory Speed Setting RPM 785 934Fan Shaft Diam. at Pulley 1 1

    SEE LEGENDS AND NOTES ON FOLLOWING PAGES

  • 4

    UNIT SPECIFICATIONS (CONT) MODELSPHS156H/L PHS180H/L

    HIGH-PRESSURE SWITCH (psig)Internal Relief (Differential) Cutout 395 395Reset (Auto.) 295 295

    LOSS-OF-CHARGE SWITCH (psig) (LOW-PRESS.)Cutout 7 7Reset (Auto.) 22 22

    FREEZE PROTECTION THERMOSTAT (F)Opens 30 +/-- 5 30 +/-- 5Closes 45 +/-- 5 45 +/-- 5

    RETURN-AIR FILTERS (THROWAWAY)Quantity...Size (in.) 4...20 x 20 x 2 4...20 x 20 x 2y ( )

    4...16 x 20 x 2 4...16 x 20 x 2

    NOTES:1. Rated in accordance with ARI Standards 360--89 and270--89.2. The PHS is beyond the scope of the ARI Certification Program.3. ARI ratings are net values, reflecting the effects of circulating fanheat.4. Ratings are based on:Cooling Standard: 80F db, 67F wb indoor entering air temperture and95F db air entering outdoor unit.IPLV Standard: 80F db, 67F wb indoor entering air temperture and 80Fdb entering air temperature.

    NOTES:1. In compliance with NEC requirements for multimotor and combina--

    tion load equipment (refer to NEC Articles 430 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 3--Phase Supply VoltageNever operate a motor where a phase imbalance in supply voltage isgreater than 2%. Use the following formula to determine the percentvoltage imbalance.

    % Voltage Imbalance

    max voltage deviation from average voltage= 100 xaverage voltage

    EXAMPLE: Supply voltage is 460--3--60.

    AB = 452 vBC = 464 vAC = 455 v

    452 + 464 + 455Average Voltage =3

    1371=

    3

    = 457

    Determine maximum deviation from average voltage.

    Maximum deviation is 7 v.Determine percent voltage imbalance.

    7% Voltage Imbalance = 100 x

    457= 1.53%

    This amount of phase imbalance is satisfactory as it is below themaximum allowable 2%.IMPORTANT : If the supply voltage phase imbalance is more than2%, contact your local electric utility company immediately .

    LEGENDS AND NOTES

    (AB) 457 -- 452 = 5 V(BC) 464 -- 457 = 7 V(AB) 457 -- 455 = 2 V

    LEGENDBhp = Brake HorsepowerBels -- Sound LevelsEER -- Energy Efficiency RatioIPLV -- Integrated Part Load ValuesMCA -- Minimum Circuit AmpsMOCP -- Maximum Over--current ProtectionFLA -- Full Load AmpsLRA -- Locked Rotor AmpsRLA -- Rated Load Amps* -- Fuse or HACR circuit breaker** -- Circuit 1 uses the lower portion of the condenser coiland lower portion of the evaporator coils; and Circuit 2 usesthe upper portion of both coils.NOTE:The PHS156 and 180 units have a low --pressureswitch (standard) located on the suction side.

    NOTE: Minimum allow able temperature of mixed--air entering the heatexchanger during first--stage heating is 45F. There is no minimummixed--air temperature limitation during second--stage heating. For en-tering--air temperatures below 45F both stages of heat must be ener-gized together to minimize condensation issues and ensure proper unitoperation.

  • NOTES:1. Dimensions in () are in millimeters.

    2. Center of Gravity.

    3. Direction of Airflow

    4. Ductwork to be attached to accessory roof curb only.5. Minimum clearance:

    Rear: 7--0 (2134) for coil removal. This dimension can be reduced to 4--0 (1219) if conditionspermit coil removal from the top.Left side: 4--0 (1219) for proper condenser coil airflow.Front: 4--0 (1219) for control box access.Right Side: 4--0 (1219) for proper operation of damper and power exhaust if so equipped.Top: 6--0 (1829) to assure proper condenser fan operation.Local Codes jurisdiction may prevail.

    6. With the exception of clearance for the condenser coil and the damper/powerexhaust as stated in Note #5, a removeable fence or barricade requiresno clearance.

    7. Dimensions are from outside of corner post. Allow 0--5/16 (8) oneach side for top cover drip edge.

    5

    13 & 15 Ton Base Unit DimensionsUnit Weight Corner A Cormer B Corner C Corner D Dim. A Dim. B Dim. C

    Unit Size lb kg lb kg lb kg lb kg lb kg ft.- in. mm ft.- in. mm ft.- in. mm

    13 Ton 1400 635 353 160 329 149 347 158 371 168 3--1 947 3--2 965 1--10 559

    15 Ton 1550 703 391 177 365 166 384 174 410 186 3--6 1059 3--8 105 1--10 559

  • 6

    EXPANDED PERFORMANCE DATA (COOLING) 13 TON (GROSS CAPACITY)

    AiOutdoor Ambient Temperature F, Dry Bulb

    Air-flow

    75 85 95 105 115flowCFM Entering Indoor Air Temperature -- Degrees F., Wet Bulb

    IDBCFM(BF) 62 67 72 62 67 72 62 67 72 62 67 72 62 67 72

    MBU 126 133 138 138 143 120 140 146 154 137 142 153 128 134 148

    5625S/T 0.82 0.66 0.52 0.94 0.72 0.53 1.00 0.80 0.56 1.00 0.84 0.59 1.00 0.86 0.60

    5625BF 0.505 0.483 0.430 0.313 0.338 0.349 0.235 0.169 0.205 0.257 0.127 0.137 0.310 0.133 0.188kW 8.4 8.6 8.8 9.7 19.8 10.0 10.9 11.0 11.3 12.3 12.4 12.6 13.5 13.7 13.9MBU 124 132 137 136 142 148 137 144 152 134 141 152 124 132 147

    80 5000S/T 0.80 0.64 0.51 0.92 0.71 0.53 1.00 0.78 0.56 0.99 0.80 0.57 1.00 0.82 0.58

    80 5000BF 0.498 0.471 0.396 0.271 0.287 0.278 0.169 0.142 0.154 0.201 0.224 0.116 0.259 0.127 1.103kW 8.4 8.6 8.7 9.6 9.8 10.0 10.9 11.0 11.2 12.2 12.3 12.5 13.4 13.6 13.9MBU 122 130 136 135 140 147 135 143 151 128 140 150 119 129 145

    4500S/T 0.78 0.63 0.51 0.90 0.71 0.53 0.98 0.75 0.55 1.00 0.77 0.55 1.00 0.78 0.56

    4500BF 0.469 0.442 0.349 1.208 0.233 0.201 0.112 0.118 0.108 0.130 0.097 0.094 0.195 0.123 0.096kW 8.3 8.5 8.7 9.6 9.7 9.9 10.8 11.0 11.2 12.1 12.3 12.5 13.3 13.6 13.9

    EXPANDED PERFORMANCE DATA (COOLING) 15 TON (GROSS CAPACITY)

    AiOutdoor Ambient Temperature F, Dry Bulb

    Air-flow

    75 85 95 105 115flowCFM Entering Indoor Air Temperature -- Degrees F., Wet Bulb

    IDBCFM(BF) 62 67 72 62 67 72 62 67 72 62 67 72 62 67 72

    MBU 184 192 202 178 186 197 173 179 190 167 172 183 158 162 174

    6750S/T 0.99 0.77 0.56 1.00 0.79 0.56 0.99 0.82 0.58 0.99 0.84 0.59 1.00 0.87 0.61

    6750BF 0.184 0.159 0.173 0.191 0.140 0.156 0.221 0.124 0.142 0.253 0.115 0.129 0.287 0.107 0.117kW 12.0 12.2 12.5 13.4 13.6 13.9 15.0 15.2 15.5 16.7 16.8 17.2 18.5 18.6 18.9MBU 180 190 200 175 184 195 169 177 189 162 170 182 153 161 173

    80 6000S/T 0.97 0.75 0.54 0.99 0.76 0.55 1.00 0.78 0.56 0.99 0.81 0.57 1.00 0.83 0.58

    80 6000BF 0.105 0.118 0.150 0.097 0.096 0.119 0.102 0.084 0.106 0.119 0.077 0.092 0.174 0.080 0.083kW 11.9 12.1 12.4 13.4 13.6 13.9 14.9 15.1 15.4 16.6 16.8 17.1 18.4 18.5 18.9MBU 176 187 198 171 182 193 164 175 187 156 167 180 146 158 171

    5250S/T 0.93 0.72 0.53 0.95 0.73 0.54 0.97 0.75 0.54 0.99 0.77 0.55 1.00 0.79 0.56

    5250BF 0.099 0.105 0.098 0.093 0.094 0.091 0.097 0.085 0.092 0.109 0.078 0.084 1.154 0.081 0.077kW 11.8 12.1 12.4 13.3 13.5 13.8 14.9 15.1 15.4 16.5 16.7 17.1 18.2 18.5 18.8

    To find leaving wet bulb and dry bulb from the expanded performance charts, use the following formulas.

    1. Direct interpolation is permissible. Do not extrapolate.

    2. The following formulas may be used:MBH = Total Capacity (Gross)

    t /db = t edb - sensible capacity Btuh / (1.10 x cfm) S/T = Sensible to Total RatioKW = Compressor Motor Power Input.

    t /wb = Wet bulb temp. corresponding to enthalpy of IDB = Indoor Dry Bulbair leaving evaporator coil (h /wb) edb = Entering Dry Bulb

    ewb = Entering Wet Bulbh /wb = h ewb - total capacity Btuh / (4.5 x cfm) t /db = Leaving Dry Bulb

    where h ewb = Enthalpy of air entering evap. coil t /wb = Leaving Wet Bulbh /wb = Enthalpy of Leaving Wet Bulb

    3. The SHC is based on 80F edb of air entering evap coil. SHC = Sensible Heat CapacityBelow 80F edb, subtract (corr factor x cfm) from SHC.Above 80F edb, add (corr factor x cfm) to SHC.

    ENTERING AIR DRY BULB79 78 77 76 7581 82 83 84 85

    Correction Factor1.04 2.07 3.11 4.14 5.180.98 1.96 2.94 3.92 4.90 Use formulas0.87 1.74 2.62 3.49 4.36 shown below0.76 1.53 2.29 3.05 3.82

    Correction Factor = 1.10 x (1-BF) x (edb-80).

    .30

    under 75over 85

    BYPASSFACTOR

    (BF).05

    FORMULAS AND NOTES FOR USING EXPANDED PERFORMANCE DATA

    LEGEND

    .10

    .20

  • 7

    13 TON -- INTEGRATED HEATING CAPACITIESTEMP AIR ENTERING OUTDOOR COIL (F db at 75% RH)

    CFM -10 0 10 17 20 30 40 47 50 60

    IDB Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW

    55 22.7 7.56 35.0 8.03 50.5 8.51 63.4 8.93 69.7 9.14 93.6 9.97 120.1 10.89 132.8 11.67 138.6 12.03 156.0 13.06

    3750 70 22.7 8.63 35.0 9.21 50.4 9.85 63.1 10.28 69.1 10.49 92.3 11.29 116.6 12.32 128.7 13.12 134.1 13.49 153.1 14.81

    80 21.9 9.11 34.7 9.95 50.1 10.72 62.9 11.25 68.9 11.48 91.4 12.30 114.3 13.31 126.0 14.18 131.2 14.57 150.2 16.03

    55 22.7 7.35 35.0 7.76 50.5 8.21 63.5 8.6 70.0 8.80 94.1 9.53 121.3 10.38 133.8 10.96 138.7 11.22 154.3 12.09

    4500 70 22.8 8.43 35.0 8.94 50.4 9.49 63.2 9.88 69.3 10.07 92.8 10.84 117.9 11.75 130.4 12.50 136.1 12.84 153.5 13.85

    80 22.2 9.0 34.8 9.70 50.3 10.37 63.1 10.83 69.0 11.03 91.9 11.79 115.6 12.72 127.6 13.51 133.1 13.86 151.8 15.03

    55 22.7 7.26 34.9 7.64 50.5 8.07 63.6 8.44 70.1 8.63 94.33 9.33 121.9 10.13 133.3 10.60 138.0 10.84 152.7 11.61

    5000 70 22.8 8.33 35.0 8.81 50.4 9.32 63.1 9.69 69.4 9.88 93.0 10.61 118.6 11.48 131.2 12.19 136.5 12.41 152.9 13.33

    80 22.3 8.94 34.9 9.57 50.3 10.19 63.1 10.62 69.6 10.84 92.1 11.53 116.3 12.45 128.5 13.17 134.0 13.51 151.2 14.52

    55 22.7 7.17 34.9 7.52 50.5 7.92 63.7 8.29 70.2 8.46 94.5 9.12 122.0 9.78 132.3 10.25 136.5 10.45 150.4 11.13

    5625 70 22.8 8.23 35.0 8.67 50.4 9.17 63.1 9.51 69.5 9.68 93.2 10.39 119.2 11.22 131.5 11.77 136.3 11.99 151.7 12.84

    80 22.5 8.87 34.9 9.44 50.4 10.08 63.1 10.43 69.7 10.63 92.3 11.29 116.9 12.17 129.3 12.87 134.8 13.13 151.3 14.03

    15 TON -- INTEGRATED HEATING CAPACITIESTEMP AIR ENTERING OUTDOOR COIL (F db at 75% RH)

    CFM -10 0 10 17 20 30 40 47 50 60

    IDB Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW Cap. kW

    55 26.1 11.21 41.5 11.65 60.7 12.17 77.0 12.60 84.7 12.81 115.1 13.65 151.6 14.74 178.9 15.46 186.1 15.82 211.5 17.22

    4500 70 26.4 12.97 41.7 13.46 61.0 14.12 77.1 14.62 84.9 14.87 114.6 15.81 150.1 16.94 174.8 17.84 182.5 18.25 206.8 19.73

    80 26.5 14.21 41.5 14.65 60.1 15.35 76.7 15.95 84.5 16.23 113.9 17.24 148.6 18.43 170.1 19.35 178.5 19.86 203.1 21.42

    55 26.3 11.05 41.8 11.45 61.2 11.92 77.5 12.32 85.3 12.51 115.9 13.29 151.8 14.22 178.4 14.90 187.1 15.22 212.1 16.46

    5000 70 26.7 12.78 42.2 13.24 61.5 13.85 77.7 14.31 85.6 14.55 115.4 15.40 151.3 16.46 177.0 17.23 184.0 17.60 208.5 18.96

    80 26.8 14.00 41.2 14.43 61.3 15.08 77.4 15.64 85.3 15.90 114.9 16.83 150.0 17.95 173.4 18.81 180.7 19.22 205.1 20.63

    55 26.8 10.90 42.4 11.25 61.9 11.68 78.4 12.05 86.2 12.22 117.1 12.95 151.9 13.79 176.8 14.39 188.2 14.67 212.5 15.76

    5625 70 27.2 12.60 42.8 13.03 62.2 13.59 78.6 14.02 86.5 14.23 116.6 15.01 152.8 16.01 178.6 16.64 185.6 16.99 210.3 18.21

    80 28.2 14.73 42.6 14.21 62.2 14.83 78.4 15.34 86.3 15.58 116.2 16.45 151.7 17.48 175.8 18.24 183.1 18.61 207.2 19.91

    55 27.3 10.78 43.1 11.11 62.7 11.50 79.4 11.85 87.2 12.01 118.3 12.70 150.4 13.40 175.4 13.98 186.9 14.23 212.8 15.23

    6250 70 27.7 12.47 43.50 12.87 63.1 13.39 79.6 13.79 87.6 13.98 117.9 14.72 154.1 15.61 180.1 16.21 187.1 16.52 211.1 17.62

    80 27.8 13.66 43.39 14.05 63.2 14.63 79.5 15.10 87.5 15.32 117.6 16.14 153.5 17.11 177.9 17.77 185.0 18.13 209.2 19.29

    NOTES:1. Integrated heating capacity ratings shown are not adjusted for the effects of the indoor--fan motor power and heat. A deduction has been madefor defrosting the outdoor coils at temperatures below 40 F.2. Direct interpolation is permissible. Do not extrapolate.3. When using auxiliary and/or supplementary heating, the maximum allowable leaving--air temperature is 140 F.

    Cap. -- Capacity (1000 Btuh)Edb -- Entering Air Dry--Bulb Temperature (F)Ldb -- Leaving Air Dry--Bulb Temperature (F)kW -- Compressor and Outdoor--Fan Power InputRH -- Relative Humidity

    500 x fluid temperature drop (F)

    fluid capacity (Btuh)Fluid flow Gpm =

    Edb F + Total heating cap. (Btuh)

    1.10 x airflow cfmLdb F =

    4. For supplementary glycol coil:

  • 8

    CIRCULATING BLOWER PERFORMANCE -- 13 TON UNITS (3.0 HP STANDARD MOTOR)EXTERNAL STATIC PRESSURE IN INCHES WATER COLUMN -- DRY COIL WITH FILTER

    0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

    CFM RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts

    4500 584 806 695 1052 798 1197 893 1510 984 1735 1070 2046 1151 2374 1229 2728

    4800 609 883 717 1119 815 1348 907 1580 994 1886 1078 2144 1157 2458 -- --

    5100 634 1052 738 1274 833 1510 921 1735 1006 2046 1086 2356 1164 2643 -- --

    5400 660 1197 760 1438 852 1658 937 1886 1019 2217 1097 2458 -- -- -- --

    5700 687 1274 783 1580 873 1822 956 2046 1034 2374 1110 2728 -- -- -- --

    6000 712 1438 805 1735 892 1972 973 2302 1049 2543 -- -- -- -- -- --

    NOTES:1) Maximum total motor Watts is 3100 for standard 3.0 HPmotor.2) Maximum blower wheel speed is 1540 rpm.3) Motor drive range is 655 -- 916 rpm.4) Air flow data based on dry coil with filters. Deduct 0.08 inches for wet coil performance.

    CIRCULATING BLOWER PERFORMANCE -- 15 TON UNITS (4.0 HP STANDARD MOTOR)EXTERNAL STATIC PRESSURE IN INCHES WATER COLUMN -- DRY COIL WITH FILTER

    0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

    CFM RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts

    4500 584 841 695 1052 798 1212 893 1510 984 1755 1070 2058 1151 2374 1229 2713 1302 3123

    4800 609 933 717 1133 815 1348 907 1599 994 1908 1078 2131 1157 2458 1233 2846 1306 3296

    5100 634 1052 738 1274 833 1510 921 1755 1006 2058 1086 2302 1164 2628 1238 3001 -- --

    5400 660 1212 760 1438 852 1668 937 1897 1019 2229 1097 2458 1172 2846 1245 3277 -- --

    5700 687 1274 783 1599 873 1822 956 2058 1034 2374 1110 2713 1183 3123 1253 3450 -- --

    6000 712 1421 805 1755 892 1972 973 2302 1049 2543 1122 2932 1193 3296 1262 3730 -- --

    6300 736 1580 826 1908 911 2131 990 2458 1064 2846 1135 3173 1204 3557 -- -- -- --

    6600 763 1822 851 2058 933 2374 1010 2713 1082 3105 1151 3450 -- -- -- -- -- --

    6900 788 1984 873 2302 954 2628 1029 3001 1099 3383 1167 3730 -- -- -- -- -- --

    NOTES:1) Maximum total motor Watts is 4210 for standard 4.0 HP motor.2) Maximum blower wheel speed is 1540 rpm.3) Motor drive range is 830 -- 1090 rpm.4) Air flow data based on dry coil with filters. Deduct 0.08 inches for wet coil performance.

  • 9

    PERFORMANCE DATA (CONT.)

    Air Quantity LimitsUNIT SIZE MINIMUM CFM MAXIMUM CFM13 Ton 3,750 6,25015 Ton 4,500 7,500

    Evaporator--Fan Motor EfficiencyUnit Size Motor Efficiency (%)13 Ton 86.515 ton 86.5

    Outdoor Sound Power

    Sound RatingOctave Bands

    Unit SizeSound Rating

    (60 Hz) A-- Weighted 63 125 250 500 1000 2000 4000 8000

    13 Ton 9.4 Bels 94.1 98.7 92.3 93.8 90.9 89.6 85.9 80.3 74.3

    15 Ton 9.4 Bels 94.1 98.7 92.3 93.8 90.9 89.6 85.9 80.3 74.3

    Bels = Sound Levels (1 bel = 10 decibels)

    13 TON -- FAN RPM AT MOTOR PULLEY DIAMETER

    MOTOR PULLEY DIAMETER (in.)

    Unit Size 4.1 3.9 3.7 3.5 3.3 3.1 2.9

    13 Ton 916 872 828 785 741 698 655

    15 TON -- FAN RPM AT MOTOR PULLEY DIAMETER

    MOTOR PULLEY DIAMETER (in.)

    Unit Size 4.9 4.7 4.5 4.3 4.1 3.9 3.7

    15 Ton 1090 1047 1003 934 916 872 830

    * Approximate fan rpm sown.

    Evaporator Fan Motor Performance

    Unit Size Unit VoltageMax. AcceptableContinuous BHP*

    Max. AcceptableContinuous BkW*

    Max. AcceptableOperating Watts Max. AMP Draw

    13 Ton208/230 3.45 2.58 3396 10

    13 Ton460 3.45 2.58 3767 5

    15 Ton208/230 4.60 3.43 4449 13.1

    15 Ton460 4.60 3.43 4972 6.6

    Bhp -- Brake Horsepower.

    * Extensive motor and electrical testing on these units ensures that the full horsepowerrange of the motors can be utilized with confidence. Using your fan motors up to thehorsepower ratings show n in this table w ill not result in nuisance tripping or premature motor failure.Unit warranty will not be affected.Note : All indoor fan motors 5 hp and larger meet the minimum efficiency requirements as established by theEnergy Policy Act of 1992 (EPACT) effective October 24, 1997.

  • 10

    25% Air OrEconomizer

    Hood

    ReturnAir

    SupplyAir

    ControlWiring Power

    Wiring CondensateDrain

    DisconnectPer NEC.

    38--11--38b

    TYPICAL INSTALLATIONS

    Roof Curb

    1--3/8 DrainHole in BasePan

    REAR

    Right Side

  • 11

    ACCESSORIES

    VERTICAL DISCHARGE ROOF CURBSDescription Model Number Where Used14 High AXB060CMA 156, 18024 High AXB060CHA 156, 180

    HORIZONTAL DISCHARGE ROOF CURBSDescription Model Number Where Used24 High AXB065CHA 156, 180

    24 High w/ Duct AXB165CHA 156, 180

    ECONOMIZER -- HORIZONTAL / DOWNFLOWDescription Model Number Where Used

    Fully Modulating AXB060EMA 156, 180Three Position AXB060EPA 156, 180

    753/16721/16

  • 12

    ACCESSORIES (CONT.)COIL PROTECTION

    Description Model Number Where UsedCoil Guard AXB060CGA 156, 180Hail Guard AXB060HGA 156, 180

    POWER EXHAUSTDescription Model Number Where Used208/230 Volt AXB060PEH 156, 180460 Volt AXB060PEL 156, 180

    POWER EXHAUST PERFORMANCE DATAMotor Unit

    Volt/Phase/ Cir. Fuse @0.1Model

    Volt/Phase/Hertz Qty HP RPM

    Cir.Qty LRA FLA MCA

    FuseSize CFM

    AXB060PEH 208--230/3/60 2 3/4 1075 1 24.9 10.0 12.6 15 9,600AXB060PEL 460/3/60 2 3/4 1075 1 N/A 4.4 5.6 8 9,600

    AXB060HGA AXB060CGA

  • 13

    ACCESSORIES (CONT.)

    CONCENTRIC DUCT KITDescription Model Number Where Used24 x 48 AXB260CTA 156, 180

    CONCENTRIC DIFFUSERDescription Model Number Used WithFlush Mount AXB058CFA 156, 180Step Down AXB058CSA 156, 180

    DIMENSIONS

    ModelNumber A B C D E F G H I J K

    DuctSize

    AXB055CFA 47-5/8 47-5/8 29-1/4 45 45 18 2-1/4 38 N/A N/A N/A 18 x 36

    AXB058CFA 59-5/8 59-5/8 35-1/4 57 57 24 2-1/4 48 N/A N/A N/A 24 x 48

    AXB055CSA 47-5/8 47-5/8 24-5/8 45 45 18 2-1/2 36 10-1/8 45-1/2 45-1/2 18 x 36

    AXB058CSA 59-5/8 59-5/8 30-5/8 57-1/2 57-1/2 24 2-1/2 48 11-1/8 57-1/2 57-1/2 24 x 48

    ANTI-SWEATGASKET

    DIFFUSER BOXDOUBLE DEFLECTIONGRILL

    TRANSITIONBOOT

    RETURN EGGCRATE GRILL

    KA

    C

    DHEF

    G

    I

    B

    J

    AXB055 -- 58CSA

    2.25

    ALUMINUM DIFFUSER

    DIFFUSERBOX

    TRANSITIONBOOT

    RETURNEGGCRATEGRILLE80-50-02

    E 4 1/2 DH

    C

    AB

    2

    G

    F

    AXB055 -- 58CFAANTI-SWEATGASKET

    SEE PERFORMANCE DATA ON NEXT PAGE

  • 14

    ACCESSORIES (CONT.)

    CFA SERIES PERFORMANCE DATA

    PartNo.AXB

    CFMStatic

    PressureIn. WC

    ThrowFeet

    NeckVelocityFPM

    JetVelocityFPM

    dbSoundLevel

    058CFA 7200 .39 26--35 996 2093 45

    7400 .41 28--37 1024 2151 45

    7600 .43 29--38 1051 2209 45

    7800 .47 40--50 1079 2276 45

    8000 .50 42--51 1107 2326 50

    8200 .53 43--52 1134 2384 50

    CSA SERIES PERFORMANCE DATAPartNo.AXB

    CFMStatic

    PressureIn. WC

    ThrowFeet

    Neck / JetVelocityFPM

    dbSoundLevels

    058CSA 7200 .39 33--38 827 25

    7400 .41 35--40 850 25

    7600 .43 36--41 873 25

    7800 .47 38--43 896 30

    8000 .50 39--44 918 30

    8200 .53 41--46 941 30CSA/CFA NOTES:1. All data is based on the Air Diffusion Council guidelines.2. Throw data is based on Terminal Velocities of 75 FPM using

    isothermal air.3. Throw is based on diffuser blades being directed in a straight

    pattern.4. Actual sound levels are less than those shown.5. Minimum height 9 above floor.

    FRESH AIR DAMPERSDescription Model Number Used With35% Motorized AXB060FMA 156, 180

    LOW AMBIENT KITModel Number Used WithAXB260LAA 156, 180

    ELECTRIC HEAT ACCESSORIESModel Number Used With

    TBD TBD

  • 15

    PHS156--180

    OPERATING SEQUENCECOOLING,UNITSWITHOUTECONOMIZER:When thermostat callsfor cooling, terminalsGandY1areenergized.The indoor (evaporator)fan contactor (IFC) and compressor contactor no. 1 (C1) areenergized, and evaporator--fan motor (IFM), compressor no. 1, andcondenser fan(s) start. The condenser fanmotor(s) runs continuouslywhile unit is cooling. When the thermostat calls for a second stage ofcooling by energizing Y2, compressor contactor no. 2 (C2) isenergized and compressor no. 2 starts.HEATING, UNITSWITHOUT ECONOMIZER: When thermostat callsforheating through terminalW1.The indoor (evaporator) fancontactor(IFC) and compressor contactor no. 1 (C1) are energized, andevaporator--fan motor (IFM), compressor no. 1, and condenser fan(s)start. The condenser--fan motor(s) runs continuously while unit isheating. When the thermostat calls for a second stage of heating byenergizing W2, compressor contactor no. 2 (C2) is energized andcompressor no. 2 starts.DEFROST CYCLE: When the temperature of the outdoor coil dropsbelow 28 F as sensed by the defrost thermostat (DFT1 or DFT2), thedefrost timer starts. At the end of a timed period (field set at 30, 50, or90 minutes), the defrost cycle will begin. The defrost board energizesterminals O and W2, energizes the defrost relay (RVR), deenergizesthe reversing valve solenoids (RVS1 and RVS2), and energizes theelectric heat(Accessory). The outdoor--fan motor will stop.

    The unit continues to defrost either until the coil temperature asmeasured by DFT1 or DFT2 reaches 65 F, or until unit completes a10--minute defrost cycle. During the defrost mode, when a circuitdefrosts, RVS will oscillate between heating and cooling modes untildefrost mode is complete. This will prevent the head pressure fromgetting too high.

    At theendof thedefrost cycle, theelectric heaters (if applicable)will bedeenergized, the reversing valve solenoids will be energized, and theoutdoor fans will start.

    APPLICATION DATA1.DUCTWORK:Ductwork should be attached to the curb on all units.Interior installation may proceed before unit is set in place on roof. Ifductwork will be attached to the unit, do not drill in condensate drainpan area leaks may result. See figures below for information onfield--installed concentric ductwork when applicable.

    2. THRU--THE--CURB SERVICE CONNECTIONS: Roof curbconnections allow field power wires, control wires, and gas supply toenter through the roof curb opening.

    3. THERMOSTAT: Use of 2--stage cooling thermostat isrecommended for all units. A 2--stage cooling thermostat is requiredon units with accessory economizer to provide integrated cooling.

    4.HEATING--TO--COOLINGCHANGEOVER:All units are automaticchangeover from heating to cooling when automatic changeoverthermostat and subbase are used.

    5. AIRFLOW: Units are draw--thru on cooling and blow--thru onheating.

    6. MAXIMUM AIRFLOW: To minimize the possibility of condensateblow--off fromevaporator, airflow throughunits should not exceed500cfm/nominal ton on size 156--180 units.

    7. MINIMUM AIRFLOW: The minimum airflow for cooling is 300cfm/nominal ton on size 156--180 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 orcontact your local representative for appropriate accessorycombinations for specific applications.

    9. MAXIMUM OPERATING OUTDOOR--AIR TEMPERATURE: Forcooling, this temperature is 120 F for 156--180 units. Refer to CoolingCapacities tables.

    10.MINIMUM AMBIENT HEATING OPERATION TEMPERATURE:Units are designed to operate at outdoor temperatures down to --20F.

    11. 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 PhysicalData table and the notes following each Fan Performance table canbe utilized with extreme confidence. Using motors with the valueslisted in the Physical and Fan Performance Data tables will not resultin nuisance tripping or premature motor failure. The unit warranty willnot be affected.

    GUIDE SPECIFICATIONS

    CABINET: The cabinet shall be made of sturdy baked enamel coatedgalvanized steel. Base rails shall be 16 gauge steel and have fork liftslots and holes provided for lifting shackles. Unit shall be designedwith convertible airflow and shipped ready for downflow applicationswith conversion to horizontal air flow accomplished by relocating twopanels.

    Return air compartments shall be insulated with not less than 1/2 ofwater resistant coated glass fiber and not less than 1/2 of aluminumfoil faced glass fiber in the furnace/supply compartments.

    COOLING SECTION: Units shall be factory charged andoperationally ready. Each refrigeration circuit shall have acompressor, with internal overload protection, high and low pressureswitches, filter drier and copper tube/aluminum fin evaporator andcondenser coils.

    COILS: The evaporator and condenser coils shall be fabricated withaluminum fins mechanically bonded to copper tubing. Both coils shallbe pressure tested prior to assembly into the unit and electronicallyleak tested after assembly onto the unit. The evaporator coil shall beprotected from dust and debris on the return air side by factoryinstalled 2 air filters.

    CONDENSERFAN: The unit shall have a single direct drive propellerfan/motor assembly mounted directly to a vertical--discharge grillepanel that is easily removable. Motors shall have permanentlylubricated sleeve bearings and inherent overload protection.

    EVAPORATOR BLOWER: The units shall have a single belt drivenevaporator blower. Themotor shall have permanently lubricated ballbearings and internal overload protection. An adjustable motor drivesheave for matching air flow requirements shall be standard.Additionally high static accessory kits shall be available for air flowsabove the standard requirement.