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50AH
Product
Horizontal Indoor
Data
Single-Package
Cooling Units
2to5 NominalTons
Single Package Cooling Units
Featuring:
compact design
flexibility
easy maintenance
high quality and reliability
quiet and efficient scroll compressor
technology
Features/Benefits
All in one package — high
cooling efficiency,
installation convenience,
ease of accessibility for time-
saving maintenance.
Space and cost saving design
Model 50AH is specifically designed to
provide the building owner with tru
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I S O 9 0 0 1 : 2 location is ideal for the maintenance Carrier quality and reliability Scroll compressor technology technician, and five access panels, easily The Carrier 50AH ROOMTOP® units Scroll compressors are designed for high removed, provide quick and convenient have much to offer the cost- and efficiency and are internally spring access to all components when needed. efficiency-conscious commercial owner. mounted to minimize vibration noise. As an added plus, all required service
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Physical data UNIT 50AH 024 036 048 060 SHIPPING WEIGHT (lb)* 560 590 690 700 OPERATING WEIGHT (lb) Base Unit, Evaporator/Condenser Section 450, 193/256 480, 206/274 580, 250/330 590, 254/336 REFRIGERANT TYPE R-22 Operating Charge (lb)† 5.4 5.5 7.4 7.6 COMPRESSOR — TYPE Scroll Quantity...Model (1)...ZR23 (1)...ZR34 (1)...SR48 (1)...ZR57 Oil (oz) 24 42 70 54 HPS Setting (psig) Cutout 426 ± 7 Reset 320 ± 20 LPS Setting (psig) Cutout 27 ± 4 Reset 67 ± 7 CONDENSATE DRAIN CONNECTION 3 Size (in.)...Ty
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Field-installed accessories Thermostat and subbase — Attractive wall-mounted Condensate pump — The condensate pump is used 24-v accessory provides precise temperature control. when the distance and slope to the nearest drain is far Automatic and Manual changeover models available. A enough to prevent the natural drainage of unit. The pump thermostat subbase is available that works with Cycle- is mounted remotely from the unit and includes a signal LOC™ circuitry. If a safety device trips, compre
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Base unit dimensions DIMENSIONS (ft-in.) UNIT ABCD E 50AH 5 3 024 2-5 2-1 / 1- 5 / 1-2 1-1 8 4 3 3 036 2-4 / 2-2 1- 5 / 1-2 1-1 4 4 5 7 7 048 2-5 2-3 1-11 / 1-8 / 1-7 / 8 8 8 3 3 5 7 7 060 2-4 / 2-2 / 1-11 / 1-8 / 1-7 / 4 4 8 8 8 UNIT COMPONENT LOCATIONS 5
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Selection procedure (with example) I Determine cooling requirements at design 1200 cfm and 67 F ewb will provide a Total conditions. Capacity (TC) of 44,200 Btuh and a Sensible Heat Capacity (SHC) of 31,300 Btuh. Since the entering Given: air is 80 F edb, an SHC correction is not required. Gross Cooling Capacity III Determine evaporator fan performance. Required (TC) . . . . . . . . . . . . . . . . . .39,000 Btuh Enter Evaporator Fan Performance table at Sensible Heat Capacity (SHC) . . . . . .3
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Performance data (cont) GROSS COOLING CAPACITIES (cont) 50AH048 50AH060 Evaporator Air Quantity Cfm/BF Evaporator Air Quantity — Cfm/BF Temp Temp 1200/0.06 1600/0.08 2000/0.10 1500/0.06 2000/0.09 2250/0.10 Air Ent Air Ent Condenser Condenser Evaporator Air Ewb Temp (F) Evaporator Air Ewb Temp (F) (F) (F) 7267 62 577267 62 577267 62 57 7267 62 7267 62 7267 62 TC 56.0 52.1 47.9 44.4 57.7 54.5 50.6 49.6 59.4 56.0 52.7 52.3 TC 64.8 58.5 52.9 68.0 61.5 56.3 68.9 62.5 58.0 85 SHC 27.8 34.8 41.6 44.4 3
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Performance data (cont) BELT DRIVE EVAPORATOR FAN PERFORMANCE (Special Order Only, Pricing and ordering on related price pages.) UNIT SIZE — 50AH CFM 048 060 ESP Fan kW ESP Fan kW 1800 ———— 1850 ———— 1900 ———— 1950 .81 1.03 — — 2000 .72 1.05 — — 2050 .63 1.07 — — 2100 .55 1.08 1.02 1.17 2150 .47 1.11 .93 1.21 2200 .42 1.14 .84 1.24 2250 .34 1.17 .75 1.27 LEGEND ESP — External Static Pressure (in. wg) kW — Total Fan Power Motor Input (kilowatts) NOTE: Pulley setting must be adjusted to limit cfm
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ELECTRIC HEATER STATIC PRESSURE DROP (in. wg) UNIT CFM ELECTRIC HEATER UNIT MIN UNIT 88EN 50AH CFM 600 800 1000 1200 1400 1600 1800 2000 2200 0500CA01 400 .02 .04 .06 .10 ————— 0075CA01 024, 036 510 .03 .06 .10 .16 ————— 1-stage 0115CA01 620 heat .04 .08 .13 .19 ————— 0075EA01 320 1150EA01 720 0100EA01 970 — — — .04 .06 .08 .12 .15 .17 0150EA01 1240 0200EA01 1350 — — — .08 .11 .14 .18 .22 .26 0300EA01 048, 060 1220 0300CA01 2-stage 1220 heat 0100FA01 1130 — — — .04 .06 .08 .12 .15 .17 0150FA01 1
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Electrical data (cont) ELECTRIC HEATER DATA BRANCH CIRCUIT ELECTRIC HEATER USED WITH V-PH CAP. (kW) UNIT 88EN UNIT 50AH (60 Hz) Heater Amps MCA MOCP (Amps) 0050CA01 240-1 5.0 20.8 26.0 30 0075CA01 240-1 7.5 31.3 39.1 40 0115CA01 240-1 11.5 47.9 59.9 60 024, 036 1-Stage Heat 208-3 5.6 15.6 19.5 20 0075EA01 240-3 7.6 18.0 22.6 25 208-3 11.3 31.2 39.0 40 1150EA01 240-3 15.0 36.1 45.1 50 208-3 7.5 20.8 26.0 30 0100EA01 240-1* 10.0 41.7 52.1 60 240-3 10.0 24.1 30.1 35 208-3 11.3 31.2 39.0 40 0150EA01
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Typical wiring schematic 50AH048,060 — 230-1-60 UNITS LEGEND AHA — Adjustable Heat Anticipator Marked Wire C— Contactor Compressor CB — Circuit Breaker Denotes connection point between subbase and thermostat CC — Cooling Compensator Terminal (Marked) EQUIP GND — Equipment Ground HPS — High-Pressure Switch Terminal (Unmarked) HR — Heater Relay IFC — Indoor (Evaporator) Fan Contactor Terminal Block IFR — Indoor (Evaporator) Fan Relay JB— Junction Box Field Splice L— Light Splice (Marked) LPS — Low
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Typical wiring schematic (cont) 50AH036,048,060 — 208/230-3-60 UNITS LEGEND AHA — Adjustable Heat Anticipator Marked Wire C— Contactor Compressor CB — Circuit Breaker Denotes connection point between subbase and thermostat CC — Cooling Compensator Terminal (Marked) CLO — Compressor Lockout CT — Current Transformer Terminal (Unmarked) EQUIP GND — Equipment Ground HPS — High-Pressure Switch Terminal Block HR — Heater Relay IFC — Indoor (Evaporator) Fan Contactor Field Splice IFR — Indoor (Evaporat
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Typical piping and wiring LEGEND 3. All piping must follow standard refrigerant piping techniques. Refer to Carrier System Design Manual, Part 3, for details. NEC — National Electrical Code 4. For other installation details refer to Installation Instructions. NOTES: 5. If unit sections are field split, 8 threaded support rods are required. 1. Wiring and piping shown are not intended for or to include all 6. Ensure condenser air recirculation is minimized. details for specific installation. 2. Al
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Guide specifications 5. Field splittable through the removal of 4 bolts Indoor Packaged Unit and extending refrigerant piping and wiring to HVAC Guide Specifications — Section 15787 allow remote horizontal or vertical condenser Size Range: 2 to 5 Tons, Nominal mounting. Carrier Model Number: 50AH 6. Unit shall have an integral hanging bracket requiring only 4 threaded rods (8 if unit is split) Part 1 — General run to the top flange of the unit for hanging, 1.01 SYSTEM DESCRIPTION eliminating nee
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I. Operating characteristics: 3. Time Guard® II Device Compressor Cycle Delay: 1. Unit shall operate using refrigerant R-22. Prevents compressor from restarting for a mini- 2. Unit shall be designed for indoor suspended mum of 5 minutes after shutdown. horizontal mounting and operation. *4. Condensate Pump: J. Electrical Requirements Unit shall be equipped with remotely located Unit shall have single point power connection to condensate pump. A field-installed light shall leads in terminal box.
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Carrier Corporation Syracuse, New York 13221 204 9-02 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 New Book 1 Pg 16 Catalog No. 525-00039 Printed in U.S.A. PC 111 Form 50AH-6PD Replaces: 50AH-5PD Tab 2b 7a Tab IP1a
