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Carrier POSITIVE PRESSURE STORAGE SYSTEM 19XB manual

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Table of contents for the manual

  • Page 1

    Installation, Operating, and Maintenance Instructions For Use With Positive Pressure Chillers SAFETY CONSIDERA TIONS Positive pressure storage systems are designed to pro- vide safe and reliable service when operated within de- sign specifications. When operating this equipment, use good judgment and safety precautions to avoid damage to equipment[...]

  • Page 2

    CONTENTS Page SAFETY CONSIDERA TIONS ...................1 INTRODUCTION ..............................2 INST ALLA TION ............................. 2-10 Complete Pre-Installation Checks .............2 • IDENTIFY UNIT • INSPECT SHIPMENT Mount the Pumpout Unit .....................3 • MOUNTING ON THE CHILLER • FLOOR MOUNTING Rig the Storage T[...]

  • Page 3

    T able 1 — Positive Pressure System Assembly Numbers POSITIVE PRESSURE SYSTEM ASSEMBL Y NUMBER PUMPOUT UNIT ASSEMBL Y NO. REFRIGERANT COMPRESSOR MOTOR (V -Ph-Hz) MAXIMUM RLA LRA STORAGE T ANK 19XB04280205 19EA42-748 R-22 208-3-60 13.2 63.5 28 cu ft 19XB04280206 19EA44-748 R-22 230-3-60 1 1.5 57.5 28 cu ft 19XB04280207 19EA46-748 R-22 400/460-3-50[...]

  • Page 4

    CONDENSER W A TER CONNECTIONS (FIELD PIPING) REFRIGERANT INLET V AL VE VENT V AL VE CONTROL BOX (WIRING BY CONTRACTOR) COMPRESSOR VA LV E S VA LV E S 19EA PUMPOUT UNIT 19EA CONTROL BOX (INTERIOR) 19EA PUMPOUT UNITS Fig. 1 — 19XB Positive Pressure Storage System 4[...]

  • Page 5

    * 3 ⁄ 8 -16 bolts × 1-in. lg; 4 required. Fig. 2 — 19EA Pumpout Unit: T ypical Chiller Mount Fig. 3 — Pumpout Unit Contact Surfaces and Dimensions ELECTRICAL CONNECTION OPTION LIST TRADE SIZE QTY LOCA TION 1 ⁄ 2 ( 1T O P 3 ⁄ 4 ( 1 BOTTOM 1 ( 1 MIDDLE 1 1 ⁄ 4 ( 1 MIDDLE 5[...]

  • Page 6

    T able 2 — Physical Data 19EA Pumpout Unit ENGLISH (SI) Pumpout Unit Weight* lb (kg) 210 (95) Pumpout Condenser W ater Flow Rate gpm (L/s) 5 to 7 (.32 to .44) Pumpout Condenser W ater Pressure Drop psig (kPa) 6 to 10.7 (41.4 to 73.8) Maximum Entering Condenser W ater T emperature F (C) 85 (29) Maximum Leaving Condenser W ater T emperature F (C) 1[...]

  • Page 7

    T able 3 — 19XB Storage T ank Rated Dry Weight and Refrigerant Capacity English SIZE CODE T ANK OD (in.) DR Y WEIGHT* (lb) MAXIMUM REFRIGERANT CAP ACITY (lb) ASHRAE/ANSI 15 UL 1963 R-22 R-134a R-22 R-134a 0428 24.00 2380 1842 1860 1704 1716 0452 27.25 3460 3527 3563 3264 3286 SI SIZE CODE T ANK OD (mm) DR Y WEIGHT* (kg) MAXIMUM REFRIGERANT CAP AC[...]

  • Page 8

    DIMENSIONS ENGLISH (ft-in.) T ANK SIZE A B CDE F G H J K LM NP R S T 0428 10- 5 9-10 4-9 2-4 3 ⁄ 4 1-2 3 ⁄ 8 3-1 3 ⁄ 16 4-1 1 3-8 1 ⁄ 8 3- 8 2-9 7 ⁄ 16 3-2 0-3 1 ⁄ 2 4-8 3 ⁄ 4 1-7 7 ⁄ 8 1-7 5 ⁄ 16 3-7 3 ⁄ 4 5-0 1 ⁄ 4 0452 14-1 1 1 ⁄ 4 14- 4 1 ⁄ 2 5-0 7 ⁄ 8 2-8 1 ⁄ 2 1-4 1 ⁄ 4 3-4 7 ⁄ 16 7- 2 1 ⁄ 4 4-0 3-1 1 7 ⁄[...]

  • Page 9

    GENERAL PIPING CONNECTION SIZES CONNECTION SIZE (in.) Refrigerant T ransfer Connections 1 ⁄ 2 ODS (female) Condenser W ater Cooling Connectors 1 ⁄ 2 NPT (female) Safety Relief Head Pumpdown Condenser 3 ⁄ 8 Flare (male) ODS — Outside Diameter , Sweat LEGEND Factory-Supplied T ubing Field-Supplied T ubing Field-Supplied T ubing (Multiple Chil[...]

  • Page 10

    T able 4 — Relief Devices STORAGE T ANK SIZE RELIEF V AL VE OUTLET SIZE QUANTITY REQUIRED F ACTOR lb air min Kg air min 28 1 in. NPT Female Connector 2 31.4 14.2 52 1 in. NPT Female Connector 2 52.3 23.7 LEGEND Ground Field Wiring Factory Wiring Contactor T erm. Overload T erm. Pumpdown T erm. Pumpdown Comp’r . T erm. Fig. 7 — 19XB Pumpout Sy[...]

  • Page 11

    CONTROLS AND COMPONENTS Figure 1 shows the major components of the PPS system. Pumpout Unit — The pumpout unit consists of a spring- mounted direct motor-driven reciprocating compressor , a water- cooled refrigerant condenser , an oil separator , suction and discharge valves to control refrigerant flow , and prewired safety and control devices. [...]

  • Page 12

    NOTE: During this operation, maintain water circulation through the chiller cooler and condenser vessels to prevent tube freeze-up. DISTILLING THE REFRIGERANT — Refrigerant vapor is transferred from the chiller cooler vessel or pumpout stor- age tank through the pumpout condenser , condensed to a liq- uid, and pumped to the chiller condenser vess[...]

  • Page 13

    e. Open valve 5 fully after the chiller pressure rises above the freezing point of the refrigerant. Let the storage tank and chiller pressure equalize. Open refrigerant charg- ing valve 7 and storage tank charging valve 10 to let liquid refrigerant drain into the chiller . V A L V E 1 a 1 b2345 6 781 0 1 1 CONDITION C C C 2. T ransfer remaining ref[...]

  • Page 14

    3. Remove any remaining refrigerant. a. T urn on chiller water pumps. b. T urn on pumpout condenser water . c. Place valves in the following positions: V A L V E 1 a 1 b23 4567 81 0 1 1 CONDITION C C C C C d. Run the pumpout compressor until the chiller pres- sure reaches 60 psig (414 kPa), [30 psig (207 kPa)]; then, shut of f the pumpout compresso[...]

  • Page 15

    d. Close valve 1a. e. T urn of f pumpout compressor . f. Close valves 1b, 3, and 4. V A L V E 1 a 1 b 23458 1 1 CONDITION C C CCCCC C g. T urn of f pumpout condenser water . h. T urn of f chiller water pumps and lock out chiller compressor . T ransfer All Refrigerant to Chiller Cooler V essel: 1. Push refrigerant into the chiller cooler vessel. a. [...]

  • Page 16

    PUMPOUT COMPRESSOR OIL CHARGE — Use oil con- forming to Carrier specifications for reciprocating compres- sor use. Oil requirements are listed in T able 6. T able 6 — Pumpout Compressor Oil Requirements REFRIGERANT ISO VISCOSITY CARRIER SPECIFICA TION NO. CARRIER P ART NO. R-22 86 PP49-7 PP23BZ101 R-134a 68 PP47-31 PP23BZ103 The total oil char[...]