Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 8 — CVC/ICVC_PSWD DISPLAY SCREEN

To access this display from the CVC/ICVC default screen: 1. Press MENU .

2.Press STATUS .

3.Scroll down to highlight

4.Press SELECT .

CVC

.or

ICVC

DESCRIPTION

STATUS

UNITS

POINT

Disable Service Password

0-1

DSABLE/ENABLE

PSWD_DIS

**Remote Reset Option

0-1

DSABLE/ENABLE

RESETOPT

Reset Alarm?

0-1

NO/YES

REMRESET

CCN Mode?

0-1

NO/YES

REM_CCN

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation. Those shown with (**) shall support write operations for the CVC/ICVC only.

EXAMPLE 9 — SETPOINT DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1.Press

2.Press

3.Press

MENU .

SETPOINT

SELECT .

.

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

Base Demand Limit

40-100

%

DLM

100

Control Point

 

 

 

 

ECW Setpoint

15-120

DEG F

ecw_sp

60.0

LCW Setpoint

10-120

DEG F

lcw_sp

50.0

Ice Build Setpoint

15-60

DEG F

ice_sp

40.0

Tower Fan High Setpoint

55-105

DEG F

tf2_sp

75

NOTE: All variables are available for CCN read operation; forcing shall not be supported on setpoint screens.

EXAMPLE 10 — CAPACITY DISPLAY SCREEN

To access this display from the CVC/ICVC default screen:

1. Press MENU .

2.Press SERVICE .

3.Scroll down to highlight

4.Press SELECT .

5.Scroll down to highlight

6.Press SELECT .

CONTROL ALGORITHM STATUS .

CAPACITY .

DESCRIPTION

STATUS

UNITS

POINT

Entering Chilled Water

–40-245

DEG F

ECW

Leaving Chilled Water

–40-245

DEG F

LCW

Capacity Control

 

 

 

Control Point

10-120

DEG F

ctrlpt

Control Point Error

–99-99

^F

cperr

ECW Delta T

–99-99

^F

ecwdt

ECW Reset

–99-99

^F

ecwres

LCW Reset

–99-99

^F

lcwres

Total Error + Resets

–99-99

^F

error

Guide Vane Delta

–2-2

%

gvd

Target Guide Vane Pos

0-100

%

GV_TRG

Actual Guide Vane Pos

0-100

%

GV_ACT

Target VFD Speed

0-100

%

VFD_IN

Actual VFD Speed

0-100

%

VFD_ACT

VFD Gain

0.1-1.5

 

vfd_gain

Demand Limit Inhibit

0-100

%

DEM_INH

Amps/kW Ramp

0-100

%

DMD_RAMP

VFD Load Factor

0-200

 

VFD_LF

NOTE: All variables with CAPITAL LETTER point names are available for CCN read operation; forcing shall not be supported on maintenance screen.

26

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Carrier 19XR, XRV specifications Example 8 CVC/ICVCPSWD Display Screen, CVC Icvc Description Status Units Point

19XR, XRV specifications

The Carrier 19XR and 19XRV chillers are sophisticated cooling solutions that represent the forefront of HVAC technology. Designed for large commercial and industrial applications, these chillers provide exceptional performance, energy efficiency, and reliability, making them ideal for a variety of environments ranging from hospitals to manufacturing facilities.

One of the most significant features of the Carrier 19XR and 19XRV chillers is their advanced scroll compressor technology. These units employ a tandem scroll design that enhances efficiency while minimizing operational noise. This makes them ideal for urban environments where noise restrictions may be in place. Moreover, the compressors are equipped with variable speed drive options in the 19XRV model, which allows for greater energy savings by adjusting cooling output based on real-time demand.

In addition to their advanced compressors, the 19XR and 19XRV units incorporate the Carrier GreenChoice refrigerant, which has a lower global warming potential compared to traditional refrigerants. This innovative choice not only meets regulatory requirements but also contributes to sustainability goals, making these chillers a responsible choice for environmentally conscious organizations.

The units are engineered with a robust heat exchanger design, which enhances heat transfer efficiency and overall system performance. This ensures optimal operation even in extreme conditions. They feature a microprocessor-based control system that allows for precise monitoring and control of the chiller’s performance, enabling operators to make real-time adjustments to maximize energy efficiency.

The Carrier 19XR and 19XRV chillers also prioritize serviceability. The design incorporates easy access to key components, simplifying maintenance procedures and reducing downtime. This focus on maintainability extends the lifespan of the equipment, leading to lower lifecycle costs.

In terms of connectivity, these chillers are equipped with advanced Building Management System (BMS) integration capabilities. This allows for seamless monitoring and control of the chillers using a centralized platform, facilitating energy management and operational optimization.

Overall, the Carrier 19XR and 19XRV chillers stand out in the market for their blend of cutting-edge technology, energy efficiency, and user-friendly features. They are engineered to meet the demanding needs of modern commercial and industrial applications, making them a preferred choice for facility managers seeking reliable cooling solutions.