Table 2 — CVC/ICVC Display Data (cont)

EXAMPLE 21 — RAMP_DEM DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight EQUIPMENT SERVICE .

4.Press SELECT .

5.Scroll down to highlight RAMP_DEM .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

Pulldown Ramp Type:

0/1

 

ramp_opt

1

Select: Temp=0, Load=1

 

 

 

 

Demand Limit + kW Ramp

 

 

 

 

Demand Limit Source

0/1

 

dem_src

0

Select: Amps=0, kW=1

 

 

 

 

Motor Load Ramp% Min

5-20

 

kw_ramp

10

Demand Limit Prop Band

3-15

%

dem_prop

10

Demand Limit At 20 mA

40-100

%

dem_20ma

40

20 mA Demand Limit Opt

0/1

DSABLE/ENABLE

dem_sel

DSABLE

Motor Rated Kilowatts

50-9999

kW

motor_kw

145

Demand Watts Interval

5-60

MIN

dw_int

15

NOTE: No variables are available for CCN read or write operation.

EXAMPLE 22 — TEMP_CTL DISPLAY SCREEN

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

1.Press MENU .

2.Press SERVICE .

3.Scroll down to highlight EQUIPMENT SERVICE .

4.Press SELECT .

5.Scroll down to highlight TEMP_CTL .

6.Press SELECT .

DESCRIPTION

STATUS

UNITS

POINT

DEFAULT

Control Point

 

 

 

 

ECW Control Option

0/1

DSABLE/ENABLE

ecw_opt

DSABLE

Temp Pulldown Deg/Min

2-10

^F

temp_ramp

3

Temperature Reset

 

 

 

 

RESET TYPE 1

 

 

 

 

Degrees Reset At 20 mA

–30- 30

^F

deg_20ma

10

RESET TYPE 2

 

 

 

 

Remote Temp —> No Reset

–40-245

DEG F

res_rt1

85

Remote Temp —> Full Reset

–40-245

DEG F

res_rt2

65

Degrees Reset

–30-30

^F

deg_rt

10

RESET TYPE 3

 

 

 

 

CHW Delta T —> No Reset

0-15

^F

restd_1

10

CHW Delta T —> Full Reset

0-15

^F

restd_2

0

Degrees Reset

–30-30

^F

deg_chw

5

Select/Enable Reset Type

0-3

 

res_sel

0

32

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Image 32
Carrier 19XR Example 21 Rampdem Display Screen, Description Status Units Point Default, Example 22 Tempctl Display Screen

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.