Carrier 19XRV specifications A48-8582, Table C MS/TP Wiring Recommendations

Page 34

APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont)

a48-8582

Fig. E — BT485 Terminator Installation

To install a BT485 terminator, push the BT485 terminator on to the BT485 connector located near the BACnet connector.

NOTE: The BT485 terminator has no polarity associated with it.

To order a BT485 terminator, consult Commercial Products i-Vu Open Control System Master Prices.

MS/TP WIRING RECOMMENDATIONS — Recommen- dations are shown in Tables C and D. The wire jacket and UL

temperature rating specifications list two acceptable alterna- tives. The Halar specification has a higher temperature rating and a tougher outer jacket than the SmokeGard specification, and it is appropriate for use in applications where the user is concerned about abrasion. The Halar jacket is also less likely to crack in extremely low temperatures.

NOTE: Use the specified type of wire and cable for maximum signal integrity.

 

 

Table C — MS/TP Wiring Recommendations

 

 

 

 

 

SPECIFICATION

 

RECOMMMENDATION

 

Cable

 

Single twisted pair, low capacitance, CL2P, 22 AWG (7x30), TC foam FEP, plenum rated cable

 

Conductor

 

22 or 24 AWG stranded copper (tin plated)

 

Insulation

 

Foamed FEP 0.015 in. (0.381 mm) wall 0.060 in. (1.524 mm) O.D.

 

Color Code

 

Black/White

 

Twist Lay

 

2 in. (50.8 mm) lay on pair 6 twists/foot (20 twists/meter) nominal

 

Shielding

 

Aluminum/Mylar shield with 24 AWG TC drain wire

 

Jacket

 

SmokeGard Jacket (SmokeGard PVC) 0.021 in. (0.5334 mm) wall 0.175 in. (4.445 mm) O.D.

 

 

Halar Jacket (E-CTFE) 0.010 in. (0.254 mm) wall 0.144 in. (3.6576 mm) O.D.

 

 

 

 

DC Resistance

 

15.2 Ohms/1000 feet (50 Ohms/km) nominal

 

Capacitance

 

12.5 pF/ft (41 pF/meter) nominal conductor to conductor

 

Characteristic Impedance

 

100 Ohms nominal

 

Weight

 

12 lb/1000 feet (17.9 kg/km)

 

UL Temperature Rating

 

SmokeGard 167°F (75°C)

 

 

Halar -40 to 302°F (-40 to 150°C)

 

 

 

 

Voltage

 

300 Vac, power limited

 

Listing

 

UL: NEC CL2P, or better

 

LEGEND

 

 

AWG

American Wire Gage

 

 

CL2P

Class 2 Plenum Cable

 

 

DC

Direct Current

 

 

FEP

Fluorinated Ethylene Polymer

 

 

NEC

National Electrical Code

 

 

O.D.

Outside Diameter

 

 

TC

Tinned Copper

 

 

UL

Underwriters Laboratories

 

 

34

Image 34
Contents Start-Up and Service Instructions Contents A19-1842 A19-1831A19-1814 1832 A19A19-1833 Wire Lugs A19-1834Parameter Default Value VFD ConfigurationsA19 1846 A19-1921 TB1 I/O Terminal DesignationsA19-1836 A19-18351815 Enet Drive Status Indicator DescriptionsName Color State Description LinkA19-1844 A19-1925Prestart Icvc Alert CodesMessage AlertRUN Capacity LimitedSensor Alert FaultPrimary Secondary Primary Cause Additional CAUSE/REMEDY LOW OILVFD Speed Alert LossCommunication System AlertIcvc Alarm Codes Failure to StopProtective Limit 235 233234 236Unused Unused StateSensor Fault VFD GatewayCode Fault Type Description Corrective Action On VFDVFD Hist Screen None113 Hist ScreenNone 124Diode Checks Meter Lead Meter ReadingA19-1814Fig Check DC Bus Terminals A19-1831Fig Open Access DoorFrames 6 and 7 Power Terminal Block A19-1816Fig Removing EnclosureA19-1838 A19-1837A19-1817A19-1818 Comm Card A19-1819CB2 FU1-FU3 PT1 Secondary Side Toward Door A19-1847CR1 EA1 Line CR6 CB1 TB4 TB4 Dist SideA19-1848 Frame 6 PartsAppendix a Wiring Schematics Chiller Control Schematic A19-1946RHS A19-1947Hgbp UPCA19-1966 A19-1967 ShldA48-8578 A48-8579Table B Baud Selection Table Appendix B Optional Bacnet Communications WiringTable a SW3 Protocol Switch Settings For MS/TP A48 8580Table C MS/TP Wiring Recommendations A48-8582Rmcorp Wiring Specifications Recommended Vendors and Part NumbersCMP LED Status Table E LED Status IndicatorsRUN LED Error LED Status RunObject ID Object Name CHW Page Copyright 2011 Carrier Corporation

19XRV specifications

The Carrier 19XRV is a cutting-edge rooftop chiller designed to provide reliable and efficient cooling solutions for a wide range of applications, including commercial buildings and industrial facilities. This advanced system integrates the latest technologies and innovative features to ensure optimal performance, energy efficiency, and ease of use.

One of the most prominent features of the 19XRV is its advanced inverter-driven compressor technology. This allows the chiller to adjust its capacity seamlessly based on the building's cooling demand. By varying the speed of the compressor, the 19XRV maximizes energy efficiency and minimizes operational costs, especially during partial load conditions. This capability not only enhances comfort but also contributes to reduced energy consumption, making it a sustainable choice for environmentally conscious users.

In addition to the inverter technology, the 19XRV incorporates a microchannel coil design. This design optimizes heat exchange efficiency and reduces the refrigerant charge, which is an essential factor in lowering greenhouse gas emissions. The microchannel coils also allow for more compact dimensions, making installation easier and maximizing rooftop space usage.

Another significant aspect of the Carrier 19XRV is its robust controls system. Equipped with Carrier’s advanced ComfortLink™ controls, this chiller offers precise monitoring and control over its operation. Users can easily integrate the chiller into building management systems for real-time data access and efficiency analytics. This connectivity ensures that operators can make informed decisions to optimize performance continuously.

The 19XRV also includes features aimed at enhancing reliability and durability. Its structural design incorporates corrosion-resistant materials, allowing the unit to withstand harsh environmental conditions. This reliability translates to lower maintenance requirements and extended equipment lifespan, providing excellent value over time.

Moreover, the chiller is designed for quiet operation, making it suitable for applications where low noise levels are essential. Sound-dampening measures ensure that the 19XRV can be utilized in urban environments or near sensitive areas without causing disturbances.

In conclusion, the Carrier 19XRV is a state-of-the-art rooftop chiller that combines efficiency, technology, and durability. Its inverter-driven compressor, microchannel coil design, advanced controls, and robust construction make it an ideal choice for those looking to maintain comfort while minimizing energy usage and environmental impact. Whether for commercial or industrial applications, the 19XRV stands out as a reliable and innovative cooling solution for the modern age.