Carrier 30HXA, HXC076-186 Discharge Line 2 F 1.1 C Drop Saturated Temperature Example

Page 11

NOTES:

1.Piping shown is for general point-of-connection only and is not in- tended to show details for a speci®c installation. Certi®ed ®eld wir- ing and dimensional drawings are available upon request. The 30HXA units should be installed using certi®ed drawings.

2.Refer to Carrier System Design Manual for details regarding pip- ing techniques.

3.Piping and pressure relief devices are ®eld supplied.

4.Vent pipes properly per local codes.

COOLER*

EXV

OIL SEPARATOR

ANGLE

VALVE

EXV

LIQUID LINE

LIQUID LINE

TO REMOTE

CONDENSER(S)

TO REMOTE

CONDENSER(S)

TO REMOTE

CONDENSER(S)

TO REMOTE

CONDENSER(S)

PRESSURE

RELIEF

DISCHARGE

LINE

LEGEND

EXV Ð Electronic Expansion Valve *See Fig. 6 for typical cooler piping.

Fig. 7 Ð Typical 30HXA Refrigerant Piping to Remote Condenser

30HXA REFRIGERANT PIPING (See Fig. 7) Ð Take care when running the refrigerant piping from the 30HXA unit to the remote condenser(s) to avoid excessive pres- sure drops. The pressure drop using R-134a refrigerant is different than when using R-22 refrigerant. See Tables 2 and 3 for an example for a 2 F (1.1 C) pressure drop in saturated temperature in the discharge (hot gas) line and liquid line, respectively. Refer to Fig. 9 and 10 for line sizing informa- tion for the discharge and liquid lines for 30HXA (R-134a) units.

Table 2 Ð Discharge Line 2 F (1.1 C) Drop in

Saturated Temperature Example

SATURATED

 

PRESSURE

 

DISCHARGE

 

 

 

 

 

 

TEMP

R-134a

R-22

 

F

 

C

Psig

kPa

Psig

 

kPa

126

 

52.2

187.5

1293

281.6

 

1942

124

 

51.1

182.0

1255

274.3

 

1891

D PRESSURE

5.5

38

7.3

 

51

LEGEND

COM Ð Common

N.O. Ð Normally Open

Fig. 8 Ð Differential Flow Switch

11

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Contents Installation Instructions Base Unit Dimensions, 30HXC076-146 Units Base Unit Dimensions, 30HXC161-186 Units Base Unit Dimensions, 30HXA076-146 Units Base Unit Dimensions, 30HXA161-186 Units Unit Mounting Plate no 30HXA Unit Mounting Plate no 30HXCÐ Physical Data, English Ð Physical Data, SI Page Page Saturated Pressure Discharge Temp Discharge Line 2 F 1.1 C Drop Saturated Temperature Example36.7 120.1 828 190.2 Saturated Pressure Liquid Temp134a Psig KPa 100 37.7 124.3 857 195.9 R-134a Discharge Line Sizing, 30HXA Units Page MCA Mocp Voltage Power Circuit Control Circuit ICF UnitÐ Unit Electrical Data, 30HXC Units 208/230 460 575 380 346²² 380/415 Ð Unit Electrical Data, 30HXC Units*MCA RLAÐ Unit Electrical Data, 30HXA Units Ð Unit Electrical Data, 30HXA Units* RLA LRA Ð Compressor Electrical Data, 30HXC UnitsUnit Size Nameplate Compressor Numbers 30HXC 161-WD 126-WD136-WD 146-WD186-WD Unit Size Nameplate Compressor Numbers 30HXA Ð Compressor Electrical Data, 30HXA Units460-60 115.4 820 94.8 685 NEC EquipCwfs ALMCCN CommInstall Accessories Unit Circuit a Circuit B Charge 30HXA 30HXA System Charge for Start-UpPackaged Service Training

30HXA, HXC076-186 specifications

The Carrier 30HXA and 30HXC series is a notable line of chillers designed for commercial applications, providing advanced cooling solutions for various buildings and infrastructures. These models are known for their reliability and efficiency, making them a preferred choice for building managers and facilities engineers.

One of the key features of the Carrier 30HXA and 30HXC series is their use of high-efficiency, variable-speed scroll compressors. This technology allows the chillers to adjust their cooling output based on the actual demand, resulting in significant energy savings, especially during periods of partial load. This responsiveness not only leads to lower operational costs but also reduces wear and tear on the equipment, extending its lifespan.

Another critical aspect of these chillers is their eco-friendly refrigerant options. The 30HXA and 30HXC models utilize R-410A refrigerant, which has a lower environmental impact compared to traditional refrigerants. This commitment to sustainability aligns with modern regulations and climate goals, making these chillers an environmentally responsible choice.

Both series offer a wide range of cooling capacities, from 76,000 to 186,000 BTU/h, catering to various commercial needs. The compact design and modular configurations of these chillers allow for easy installation and integration into existing systems, facilitating retrofits and upgrades without significant disruption.

The 30HXA and 30HXC chillers also feature advanced controls that enhance their operational efficiency. The integrated controls allow for easy monitoring and adjustments, enabling users to optimize performance and minimize energy consumption. Additionally, they can easily interface with building management systems (BMS), providing real-time data and improved operational insights.

Durability is another hallmark of the Carrier 30HXA and 30HXC series. Built with corrosion-resistant materials and designed to withstand harsh weather conditions, these chillers ensure reliable performance in various environments. The robust construction further enhances their longevity, providing consistent cooling solutions for years.

In summary, the Carrier 30HXA and 30HXC series chillers offer advanced technology, eco-friendly refrigerants, energy efficiency through variable-speed compressors, and durable construction. These features come together to provide a reliable and effective cooling solution for a wide range of commercial applications, ensuring comfort and performance while supporting sustainability goals.
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