Table 5 Ð Condenser Fan Sequence

FAN ARRANGEMENT

FAN NUMBER(S)

FAN CONTACTOR

CONTROLLED BY

30GN

(FC)

 

 

040-050

1

FC-A1

Compressor A1

 

 

 

 

 

2

FC-B1

Compressor B1

 

3

FC-A2

First Stage

 

Microprocessor

 

 

 

 

4

FC-B2

Second Stage

 

Microprocessor

 

 

 

060,070

1

FC-A1

Compressor A1

 

 

 

 

 

2

FC-B1

Compressor B1

 

 

 

 

 

3, 4

FC-A2

First Stage

 

Microprocessor

 

 

 

 

5, 6

FC-B2

Second Stage

 

Microprocessor

 

 

 

080,090 (and associated modular units*)

1

FC-A1

Compressor A1

 

2

FC-B1

Compressor B1

 

 

 

 

 

3

FC-A2

First Stage

 

 

 

 

4

FC-B2

Microprocessor

 

 

 

 

 

 

 

3, 4, 5, 6

FC-A2, FC-B2,

Second Stage

 

FC-A3, FC-B3

Microprocessor

 

 

100,110 (and associated modular units*)

1

FC-A1

Compressor A1

 

 

 

 

 

2

FC-B1

Compressor B1

 

 

 

 

 

3

FC-A2

First Stage

 

4

FC-B2

Microprocessor

 

 

 

 

 

 

 

5, 7, 6, 8

FC-A3, FC-B3

Second Stage

 

Microprocessor

 

 

 

 

3, 4, 5, 6, 7, 8

FC-A2, FC-A3,

Third Stage

 

FC-B2, FC-B3

Microprocessor

 

 

130-170 (and associated modular units*)

5, 7

FC-A1

Compressor A1

 

6, 8

FC-B1

Compressor B1

 

 

 

 

 

3, 9

FC-A2

First Stage

 

4, 10

FC-B2

Microprocessor

 

 

 

 

 

 

 

1, 3, 9

FC-A2, FC-A3

Second Stage

 

 

 

 

2, 4, 10

FC-B2, FC-B3

Microprocessor

 

 

190,210 (and associated modular units*)

5, 7

FC-A1

Compressor A1

 

 

 

 

 

6, 8

FC-B1

Compressor B1

 

 

 

 

 

3, 9

FC-A2

First Stage

 

 

 

 

4, 10

FC-B2

Microprocessor

 

 

 

 

 

 

 

1, 3, 9, 11

FC-A2, FC-A3

Second Stage

 

2, 4, 10, 12

FC-B2, FC-B3

Microprocessor

 

 

 

 

 

 

*See Table 1. ²Control box.

AUTOMATIC DISPLAY OPERATION/DEFAULT DIS- PLAY Ð This display automatically rotates as follows:

DOW Ð Day of Week

HHÐ Hour(s)

MM Ð Minute(s)

The default rotating display is displayed every 2 seconds if there has been no manual input from the keypad for 10 minutes.

To return to automatic display, enter at any time.

KEYPAD OPERATING INSTRUCTIONS (Refer to Table 9.)

1.White keys on left side of keypad are shown and oper- ated in these instructions according to the following ex-

ample: keypad entry means press the , then

the white key marked .

2.The standard display uses abbreviations. Expanded in-

formation scrolls through the display whenever key is pressed.

25

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Carrier 30GN040-420 operating instructions Condenser Fan Sequence, FAN Arrangement FAN Numbers FAN Contactor Controlled by

30GN040-420 specifications

The Carrier 30GN040-420 is a well-regarded model within the industry of chillers, designed to deliver efficient cooling solutions for a variety of commercial applications. Its compact design and advanced technology make it an ideal choice for businesses looking to optimize their HVAC systems.

One of the standout features of the Carrier 30GN series is its flexibility. This chiller model is available in a range of capacities, specifically from 40 to 420 tons, allowing for customized solutions based on specific cooling demands. Such versatility enables this unit to cater to a broad array of installations, from small commercial spaces to larger industrial facilities.

The Carrier 30GN040-420 utilizes a scroll compressor design, known for its reliability and efficiency. The scroll technology allows for a reduction in the number of moving parts, resulting in lower maintenance costs and increased durability. Additionally, the unit operates with environmentally friendly refrigerants such as R-410A, promoting sustainability without compromising performance.

Energy efficiency is another significant aspect of this model. The 30GN series is designed to provide high energy efficiency ratios (EER), which translates to lower operational costs for users over the lifespan of the unit. This is particularly beneficial in an era where energy costs are consistently rising.

The advanced controls found within the Carrier 30GN040-420 further enhance its performance and ease of use. The unit is equipped with a microprocessor-based control system that allows for precise temperature management while providing valuable diagnostic information. This feature not only improves the overall reliability of the system but also facilitates proactive maintenance, reducing the risk of unscheduled downtime.

Moreover, the design of the Carrier 30GN040-420 emphasizes quiet operation, making it suitable for environments where noise levels must be minimized. This characteristic is critical for applications in hospitals, schools, or office buildings, where a peaceful atmosphere is essential.

In summary, the Carrier 30GN040-420 chiller provides a robust solution for businesses requiring dependable and efficient cooling. Its features, including flexible capacity options, reliable scroll compressors, energy-efficient performance, advanced controls, and quiet operation, position it as a top choice for various commercial and industrial applications. As technology continues to evolve, models such as the 30GN series remain at the forefront, meeting the demands of modern HVAC needs while ensuring sustainability and efficiency.