Carrier 19XB Table 4 Relief Devices, Fig. 7 19XB Pumpout System Wiring Schematic, Fig. 8 Pumpout Unit Wiring Schematic

1 16

Table 4 — Relief Devices

STORAGE

TANKSIZE RELIEF VALVE

OUTLET SIZE QUANTITY REQUIRED FACTOR

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

FieldWiring

FactoryWiring

ContactorTerm.

OverloadTerm.

PumpdownTerm.

PumpdownComp’r.

Term.

Fig. 7 — 19XB Pumpout System Wiring Schematic

LEGEND

C—Contactor

Fu — Fuse, 3 Amps

HP — High-PressureCutout

L—CompressorMotor Voltage Line (3-phase)

LL — Low-Line Control Voltage(single-phase)

OL — CompressorOverload

T’stat — InternalThermostat

Compressor Terminal

Contactor Terminal

Overload Terminal

Pumpout Unit Terminal

*Bimetal thermal protector imbedded in motor winding.

Fig. 8 — Pumpout Unit Wiring Schematic

Contents

Main Installation, Operating, and Maintenance Instructions For Use With Positive Pressure Chillers SAFETY CONSIDERATIONS 19XB Positive Pressure Storage System 50/60 Hz CONTENTS INTRODUCTION INSTALLATION Complete Pre-Installation Checks Mountthe Pumpout Unit Rig the Storage Tank 19EAPUMPOUT UNIT 19EACONTROL BOX (INTERIOR) Fig. 1 19XB Positive Pressure Storage System Fig. 2 19EA Pumpout Unit: TypicalChiller Mount Fig. 3 Pumpout Unit Contact Surfaces and Dimensions ELECTRICAL CONNECTION OPTION LIST Table 2 Physical Data Fig. 4 Rigging Guide 19EA Pumpout Unit MakePiping Connections Make Electrical Connections DIMENSIONS Fig. 5 PPS Contact Surface and Dimensions GENERAL PIPING CONNECTION SIZES Fig.6Typical Pumpout Unit/Chiller Connection Schematic Table 4 Relief Devices Fig. 7 19XB Pumpout System Wiring Schematic Fig. 8 Pumpout Unit Wiring Schematic CONTROLS AND COMPONENTS PumpoutUnit Storage Tank OPERATION Overview Pumpout and Refrigerant TransferProcedures Page Page MAINTENANCE Pumpout Unit Storage Tank Ordering Replacement Parts TROUBLESHOOTING