Carrier HFC-134A installation instructions Contents

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CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Job Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42

Receiving the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

•INSPECT SHIPMENT

•IDENTIFY MACHINE

•INSTALLATION REQUIREMENTS

•PROVIDE MACHINE PROTECTION

Rigging the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

•RIG MACHINE ASSEMBLY

•RIG MACHINE COMPONENTS

Separate Machine Components . . . . . . . . . . . . . . . . . 13

•SEPARATE COOLER AND CONDENSER

•REMOVE THE CONTROLS/DRIVE ENCLOSURE FROM THE CONDENSER

•REMOVE THE DISCHARGE PIPE ASSEMBLY FROM THE CONDENSER

•SEPARATE THE COMPRESSOR FROM THE CONDENSER

•SEPARATE THE VAPORIZER FROM THE

CONDENSER

VFD Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Install Machine Supports . . . . . . . . . . . . . . . . . . . . . . . . 22

•INSTALL STANDARD ISOLATION

•INSTALL ACCESSORY ISOLATION

•INSTALL SPRING ISOLATION

Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

•INSTALL WATER PIPING TO HEAT EXCHANGERS

•INSTALL VENT PIPING TO RELIEF VALVES

Make Electrical Connections . . . . . . . . . . . . . . . . . . . . 30

•GROUNDING THE CONTROLS/DRIVE ENCLOSURE

•INSTALLING INPUT POWER WIRING

•WIRING THE FIELD WIRING TERMINAL STRIPS

•CONNECT CONTROL INPUTS

•CONNECT CONTROL OUTPUTS

•CONNECT STARTER

COMPLETING THE INSTALLATION . . . . . . . . . . . 43-47

Checking the Installation . . . . . . . . . . . . . . . . . . . . . . . . 43

Oil Pump and Oil Heater . . . . . . . . . . . . . . . . . . . . . . . . . 43

Connect Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 43

Carrier Comfort Network Interface. . . . . . . . . . . . . . . 43

Lead-Lag Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . 44

Install Field Insulation and Lagging . . . . . . . . . . . . . 44

INSTALLATION START-UP REQUEST

CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . CL-1, CL-2

INTRODUCTION

General — The 23XRV machine is factory assembled, wired, and leak tested. Installation (not by Carrier) consists primarily of establishing water and electrical services to the machine. The rigging, installation, field wiring, field piping, and insulation of waterbox covers are the responsibility of the contractor and/or customer. Carrier has no installation respon- sibilities for the equipment.

Job Data — Necessary information consists of:

•job contract or specifications

•machine location prints

•rigging information

•piping prints and details

•field wiring drawings

•starter manufacturer’s installation details

•Carrier certified print

INSTALLATION

Receiving the Machine

INSPECT SHIPMENT

Do not open any valves or loosen any connections. The 23XRV machine may be shipped with a full refrigerant charge. Some machines may be shipped with a nitrogen holding charge as an option.

1.Inspect for shipping damage while machine is still on ship- ping conveyance. If machine appears to be damaged or has been torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufac- turer is not responsible for any damage incurred in transit.

2.Check all items against shipping list. Immediately notify the nearest Carrier representative if any item is missing.

3.To prevent loss or damage, leave all parts in original pack- ages until beginning installation. All openings are closed with covers or plugs to prevent dirt and debris from enter- ing machine components during shipping. A full operating oil charge is placed in the oil sump before shipment.

IDENTIFY MACHINE (Fig. 1-4) — Refer to machine name- plate in Fig. 1. The machine model number, serial number, and heat exchanger sizes are stamped on the Refrigeration Machine nameplate located on the side of the VFD (variable frequency drive) enclosure. Check this information against shipping papers and job data.

a23-1547

Fig. 1 — Refrigeration Machine Nameplate

2

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Contents Installation Instructions Contents Model Number Identification Typical 23XRV Components A23-155051A23-1551 A23-1553Control Center Components A23-1555 A23-155623XRV Dimensions Nozzle-In-Head Waterbox A23-155723XRV Component Weights TR Compressor 23XRV Dimensions Marine Waterbox23XRV Compressor Weights 23XRV Waterbox Nozzle Sizes23XRV Heat Exchanger Data 23XRV Additional Data for Cooler Marine Waterboxes23XRV Additional Data for Condenser Marine Waterboxes 23XRV Waterbox Cover Weights English lb23XRV Waterbox Cover Weights SI kg Electrical Cable Routing Top View Cooler/Discharge Pipe Assembly Removal A23-1564 A23-1635A23-1563 A23-1570 A23-1565A23-1567 A23-1571 Cables A23-1561Control Panel Inputs A23-1568 A23-1569Compressor Fastener Identification A23-1572Oil Concentrator Removal A23-1573Oil Reclaim Piping Motor Terminal Box A23-1576A23-1578 A23-1579COUPLINGSA19-1109 A19-1110 A23-1534A23-46 A23-1537 A23-1580A23-1538 A23-1581A23-1539 A23-1540A23-1541 A23-1543Rated DRY Weight and Refrigerant Capacity A23-1634A23-1544 A23-1545Pumpout Unit Relief Valve ArrangementsRelief Valve Locations Close the door to the control centerTypical Field Wiring Schematic A23-1585A23-1586 Typical Field Wiring Schematic Lug Capacity A23-1587PIC III Control Component Layout A23-1584Page 23XRV Controls Schematic A23-1588A23-1589 A23-1591 A23-1590 A23-1592CCN Communication Wiring For Multiple Chillers Typical A23-159323XRV with Unit-Mounted VFD/Control Center A23-1594A23-1596 Cable ManufacturersA23-1595 Install Field Insulation and Lagging Insulator CodesLead/Lag Control Wiring A23-1597A23-1598 23XRV Insulation Area A23-1599Page Page Copyright 2006 Carrier Corporation Installation START-UP Request Checklist Testing YES/NO Date to be Completed

HFC-134A specifications

Carrier HFC-134A, also known as tetrafluoroethane, is a hydrofluorocarbon (HFC) refrigerant widely used in a variety of cooling and heating applications. It is recognized for its role in refrigeration and air conditioning systems, making it a crucial component in many modern HVAC units. One of the key features of HFC-134A is its zero ozone depletion potential, which makes it an environmentally friendly alternative to older refrigerants like CFCs and HCFCs.

The characteristics of HFC-134A include its stability, non-corrosiveness, and effectiveness at low temperatures. These properties allow it to perform efficiently in both residential and commercial refrigeration systems. The refrigerant operates within a temperature range that is ideal for many applications, including food preservation and air conditioning. HFC-134A's thermodynamic properties enable it to absorb and release heat effectively, making it suitable for both vapor-compression and absorption refrigeration cycles.

From a technological perspective, the use of HFC-134A aligned with the transition to more sustainable refrigerants. As global environmental regulations have tightened, manufacturers have shifted towards refrigerants with lower global warming potential (GWP). HFC-134A has a GWP of approximately 1,430, which is lower than many of its predecessors but still higher than some newer alternatives. This aspect drives ongoing research and development in the industry, aiming to create even more environmentally sound refrigerants.

Carrier HFC-134A is compatible with various lubricants and can be integrated into systems designed for other refrigerants with minimal modifications. This flexibility allows for a smoother transition within existing installations as businesses and homeowners upgrade their HVAC systems to comply with environmental regulations.

In summary, Carrier HFC-134A plays a significant role in modern refrigeration and air conditioning technology. Its main features, including zero ozone depletion potential, stability, and efficiency, contribute to its widespread use in various applications. As the industry continues to evolve, the focus on reducing the environmental impact of refrigerants will undoubtedly influence the future direction of HFC-134A usage and the development of new alternatives.
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