Carrier HFC-134A installation instructions A23-1565, A23-1567, A23-1570

Page 15

SHIPPING

BRACKET

a23-1565

Fig. 16 — VFD Shipping Bracket

3.

Remove the nuts that secure the terminal box transition

 

piece to the motor housing.

4.

Disconnect the motor leads from the motor terminals

 

(Fig. 17). Note the position of the motor terminal cable

 

lugs so they can be reinstalled with sufficient clearance

 

away from surrounding structure.

5.

Remove the motor temperature sensor leads (Fig. 17), the

 

motor ground lead, and the bolts that secure the VFD

a23-1567

Fig. 18 — ICVC Communication Cables

 

enclosure to the terminal box transition piece.

6.

Disconnect the communication cables from the back of

 

the ICVC (Fig. 18).

7.

Disconnect the high pressure switch leads from terminal

 

strip TB1, terminals 15 and 16 (Fig. 19).

8.

Unplug connectors CN1A, CN1B, CN2, and CN3

 

(Fig. 19).

9.

Disconnect the control panel ground wire (Fig. 19) that is

 

located next to connectors CN1A and CN1B.

10.

Disconnect the VFD cooling lines (Fig. 20) and cover all

 

openings.

11.

Remove the 12 screws that secure the control panel to the

 

VFD enclosure. Tilt the control panel away from the back

 

of the control center.

12.

Position the control panel on top of the condenser and

 

secure it in place to prevent damage.

MOTOR TERMINALS

MOTOR TERMINAL

BOX FRAME

MOTOR

TEMPERATURE

SENSOR TERMINAL

BLOCK

MOTOR

 

TEMPERATURE

a23-1566

CABLE

CONNECTOR CN2

a23-1570

 

CONTROL PANEL

CONNECTOR CN1A

GROUND WIRE

CONNECTOR CN1B

HIGH

PRESSURE

SWITCH

CABLE

LOW VOLTAGE FIELD

WIRING TERMINAL STRIP

CONNECTOR CN3

Fig. 17 — Motor Terminals

Fig. 19 — Control Panel Connectors

15

Image 15
Contents Installation Instructions Contents Model Number Identification A23-155051 Typical 23XRV ComponentsA23-1553 A23-1551Control Center Components A23-1556 A23-1555A23-1557 23XRV Dimensions Nozzle-In-Head Waterbox23XRV Waterbox Nozzle Sizes 23XRV Dimensions Marine Waterbox23XRV Compressor Weights 23XRV Component Weights TR Compressor23XRV Additional Data for Cooler Marine Waterboxes 23XRV Heat Exchanger Data23XRV Waterbox Cover Weights English lb 23XRV Waterbox Cover Weights SI kg23XRV Additional Data for Condenser Marine Waterboxes Electrical Cable Routing Top View Cooler/Discharge Pipe Assembly Removal A23-1635 A23-1563A23-1564 A23-1565 A23-1567A23-1570 A23-1561 A23-1571 CablesA23-1568 A23-1569 Control Panel InputsA23-1572 Compressor Fastener IdentificationA23-1573 Oil Concentrator RemovalOil Reclaim Piping A23-1576 Motor Terminal BoxA23-1579COUPLINGS A23-1578A23-1534 A23-46A19-1109 A19-1110 A23-1580 A23-1537A23-1581 A23-1538A23-1540 A23-1539A23-1543 A23-1541A23-1634 Rated DRY Weight and Refrigerant CapacityA23-1545 A23-1544Relief Valve Arrangements Pumpout UnitClose the door to the control center Relief Valve LocationsA23-1585 Typical Field Wiring SchematicA23-1586 Typical Field Wiring Schematic A23-1587 Lug CapacityA23-1584 PIC III Control Component LayoutPage A23-1588 23XRV Controls SchematicA23-1589 A23-1592 A23-1591 A23-1590A23-1593 CCN Communication Wiring For Multiple Chillers TypicalA23-1594 23XRV with Unit-Mounted VFD/Control CenterCable Manufacturers A23-1595A23-1596 Insulator Codes Install Field Insulation and LaggingA23-1597 Lead/Lag Control WiringA23-1598 A23-1599 23XRV Insulation AreaPage 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.