Carrier POSITIVE PRESSURE STORAGE SYSTEM 19XB Specifications download pdf (Page 2)

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 1,2

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Complete Pre-Installation Checks . . . . . . . . . . . . . . . . 3

• IDENTIFY UNIT

• INSPECT SHIPMENT

Mount the Pumpout Unit . . . . . . . . . . . . . . . . . . . . . . . . . 3

• MOUNTING ON THE CHILLER

• FLOOR MOUNTING

Rig the Storage Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Make Piping Connections . . . . . . . . . . . . . . . . . . . . . . . . 6

• INSTALL VENT PIPING TO RELIEF DEVICES

Make Electrical Connections . . . . . . . . . . . . . . . . . . . . . 6

CONTROLS AND COMPONENTS . . . . . . . . . . . . . . . . 11

Pumpout Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

• CONTROLS

• SAFETY CONTROL SETTINGS

•COMPRESSOR

• CONDENSER

•OIL SEPARATOR

• SUCTION AND DISCHARGE VALVES

Storage Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

•DRAIN VALVE

• DUAL RELIEF VALVES

• PRESSURE GAGE

• LEVEL GAGE

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-15

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

• REFRIGERANT TRANSFER

• TRANSFERRING LIQUID REFRIGERANT FROM

THE CHILLER COOLER TO THE CHILLER

CONDENSER OR PUMPOUT STORAGE TANK

• TRANSFERRING LIQUID REFRIGERANT FROM

THE CHILLER CONDENSER OR PUMPOUT

STORAGE TANK TO THE CHILLER COOLER

• DISTILLING THE REFRIGERANT

Pumpout and Refrigerant Transfer Procedures . . 12

• OPERATING THE PUMPOUT UNIT

• TO READ REFRIGERANT PRESSURES

• POSITIVE PRESSURE CHILLERS WITH STORAGE

TANKS

• CHILLERS WITH ISOLATION VALVES

• DISTILLING THE REFRIGERANT

MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16

Pumpout Compressor Oil Charge . . . . . . . . . . . . . . . 15

Storage Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Ordering Replacement Parts . . . . . . . . . . . . . . . . . . . . 16

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

INTRODUCTION

The 19XR Positive Pressure Storage (PPS) System has been

designed to help owners and operators of positive pressure

chillers store HFC-134a refrigerant during service and repair

WARNING

CHECK THE REFRIGERANT TYPE before transferring

refrigerant to the machine. The introduction of the wrong

refrigerant can cause damage or malfunction to this

machine.

Operation of this equipment with refrigerants other than

those cited herein should comply with ASHRAE 15 (latest

edition). Contact Carrier for further information on use of

this machine with other refrigerants.

ENSURE that refrigerant is only pumped to or stored in

tanks that are ASME (American Society of Mechanical

Engineers) certified for the pressures appropriate to the

refrigerant being handled.

DO NOT ATTEMPT TO REMOVE fittings, covers, etc.,

while machine is under pressure or while machine is run-

ning. Be sure pressure is at 0 psig (0 kPa) before breaking

any refrigerant connection.

CAREFULLY INSPECT all relief devices, rupture discs,

and other relief devices AT LEAST ONCE A YEAR. If

machine operates in a corrosive atmosphere, inspect the

devices at more frequent intervals.

DO NOT ATTEMPT TO REPAIR OR RECONDITION

any relief device when corrosion or build-up of foreign

material (rust, dirt, scale, etc.) is found within the valve

body or mechanism. Replace the device.

DO NOT install relief devices in series or backwards.

USE CARE when working near or in line with a com-

pressed spring. Sudden release of the spring can cause it

and objects in its path to act as projectiles.

CAUTION

Failure to follow these procedures may result in personal

injury or damage to equipment.

EQUIPMENT should be operated by certified personnel

only.

DO NOT STEP on refrigerant lines. Broken lines can whip

about and cause personal injury and damage to the

machine.

DO NOT climb over a machine. Use platform, catwalk, or

staging. Follow safe practices when using ladders.

USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to

lift or move inspection covers or other heavy components.

Even if components are light, use such equipment when

there is a risk of slipping or losing your balance.

BE AWARE that certain automatic start arrangements

CAN ENGAGE THE STARTER. Open the disconnect

ahead of the starter in addition to shutting off the machine

or pump.

USE only repair or replacement parts that meet the code

requirements of the original equipment.

DOUBLE-CHECK that coupling nut wrenches, dial indi-

cators, or other items have been removed before rotating

any shafts.

DO NOT LOOSEN a packing gland nut before checking

that the nut has a positive thread engagement.

PERIODICALLY INSPECT all valves, fittings, and piping

for corrosion, rust, leaks, or damage.

DO NOT MIX REFRIGERANT from chillers that use dif-

ferent compressor oils. Compressor damage can result.

(Cautions continued in next column.)

CAUTION

DO NOT re-use compressor oil or any oil that has been

exposed to the atmosphere. Dispose of oil per local codes

and regulations.

DO NOT leave refrigerant system open to air any longer

than the actual time required to service the equipment. Seal

circuits being serviced and charge with dry nitrogen to pre-

vent oil contamination when timely repairs cannot be

completed.

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Carrier POSITIVE PRESSURE STORAGE SYSTEM 19XB Specifications Page 2

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