Carrier 23XRV manual Guide specifications, Hvac Guide Specifications

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Guide specifications

Variable Speed Screw Chiller

HVAC Guide Specifications

Size Range: 300 to 550 Tons (1055 to 1934 kW) Nominal

Carrier Model Number: 23XRV

Part 1 — General

1.01SYSTEM DESCRIPTION

A.Microprocessor-controlled liquid chiller shall use a semi-hermetic screw compressor using refrigerant HFC-134a only. Chiller refrigerant shall not have a planned phase out date.

B.If a manufacturer proposes a liquid chiller using HCFC-123 refrigerant, which has a planned phase out date, then the manufacturer shall include in the chiller price:

1.A vapor activated alarm system consisting of all alarms, sensors, safeties, and ventilation equip- ment as required by ANSI/ASHRAE Standard 15 Safety Code for Mechanical Refrigeration (latest edition) with the quotation. System shall be capable of responding to HCFC-123 levels of 10 ppm Allowable Exposure Limit (AEL).

2.A free-standing refrigerant storage tank and pumpout unit shall be provided. The storage vessels shall be designed per ASME Section VIII Division 1 code with 300 psig (2068 kPa) design pressure. Double relief valves per ANSI/ ASHRAE 15, latest edition, shall be provided. The tank shall include a liquid level gage and pressure gage. The pumpout unit shall use a semi-hermetic reciprocating compressor with water cooled condenser. Condenser water pip- ing, 3-phase motor power, and 115-volt control power shall be installed at the jobsite by the installing contractor.

3.Zero emission purge unit capable of operating even when the chiller is not operating.

4.Back-up relief valve to rupture disk.

5.Factory-installed chiller pressurizing system to prevent leakage of noncondensables into the chiller during shutdown periods.

6.Plant room ventilation.

7.Removal and disposal of refrigerant at the end of the phase out period.

8.Chillers utilizing a purge unit shall include in the machine price the costs to perform the follow- ing regular maintenance procedures:

a.Weekly: Check refrigerant charge.

b.Quarterly: Charge purge unit dehydrator at least quarterly, more often if necessary. Clean foul gas strainer. Perform chemical analysis of oil.

c.Annually: Clean and inspect all valves. Drain and flush purge shell. Clean orifices.

1.02QUALITY ASSURANCE

A.Chiller performance shall be rated in accordance with AHRI Standard 550/590, latest edition.

B.Equipment and installation shall be in compliance with ANSI/ASHRAE 15 (latest edition).

C.Cooler and condenser refrigerant side shall include ASME “U” stamp and nameplate certifying compli- ance with ASME Section VIII, Division 1 code for unfired pressure vessels.

D.A manufacturer’s data report is required to verify pressure vessel construction adherence to ASME vessel construction requirements. Form U-1 as required per ASME code rules is to be furnished to the owner. The U-1 Form must be signed by a qualified inspector, holding a National Board Commission, certifying that construction conforms to the latest ASME Code Section VIII, Div. 1 for pressure vessels. The ASME symbol “U” must also be stamped on the heat exchanger. Vessels specifi- cally exempted from the scope of the code must come with material, test, and construction methods certification and detailed documents similar to ASME U-1; further, these must be signed by an offi- cer of the company.

E.Chiller shall be designed and constructed to meet UL and UL of Canada requirements and have labels appropriately affixed.

F.Unit shall be manufactured in a facility registered to ISO 9001:2000 Manufacturing Quality Standard.

G.Each compressor assembly shall undergo a mechan- ical run-in test to verify vibration levels, oil pressures, and temperatures are within acceptable limits. Each compressor assembly shall be proof tested at a mini- mum 204 psig (1407 kPa) and leak tested at 185 psig (1276 kPa) with a tracer gas mixture.

H.Entire chiller assembly shall be proof tested at 204 psig (1407 kPa) and leak tested at 185 psig (1276 kPa) with a tracer gas mixture on the refriger- ant side. The leak test shall not allow any leaks greater than 0.5 oz per year of refrigerant. The water side of each heat exchanger shall be hydro- statically tested at 1.3 times rated working pressure.

I.Prior to shipment, the chiller automated controls test shall be executed to check for proper wiring and ensure correct controls operation.

J.Chillers shall have factory-mounted, factory-wired and factory-tested unit-mounted variable frequency drive (VFD). Proper VFD operation shall be con- firmed prior to shipment.

1.03DELIVERY, STORAGE AND HANDLING

A.Unit shall be stored and handled in accordance with manufacturer’s instructions.

B.Unit shall be shipped with all refrigerant piping and control wiring factory-installed.

C.Unit shall be shipped charged with oil and full charge of refrigerant HFC-134a or a nitrogen hold- ing charge as specified on the equipment schedule.

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Contents Features/Benefits Product reliability23XRV Table of contents Heat exchanger features Microprocessor controls featuresModel number nomenclature A23-164823XRV Compressor and Motor Weights Component Weights23XRV Heat Exchanger Weights Physical dataAdditional Weights for 23XRV Marine Waterboxes NumberFrame Passes→ Options and accessories Option ACCESSORY†Dimensions 23XRV Dimensions23XRV Dimensions NOZZLE-IN-HEAD Waterbox 23XRV Dimensions Marine WaterboxPerformance data Nozzle Size23XRV Heat Exchanger MIN/MAX Flow Rates Cooler PassElectrical data VFD Frame SizesAuxiliary Ratings Features ControlsMicroprocessor controls Control systemControl Panel Display Front View CCN Communication Wiring for Multiple Chillers Typical CCMControl sequence Control SequenceTypical piping and wiring 23XRV ChillerControl wiring schematic 23XRV Component ArrangementGND Ground Dimensions mm Application data→ 23XRV Machine Footprint 23XRV23XRV Isolation with Accessory Soleplate Package A23-164723XRV Nozzle Arrangements Cooler WaterboxesCondenser Waterboxes Out23XRV Nozzle Arrangements Relief Valve Locations Relief Valve ArrangementsVent and drain connections Relief valve discharge pipe sizingAsme stamping Design pressures→ Minimum fluid loop volume 23XRV Minimum FIELD-INSTALLED Insulation RequirementsInsulation Condensation VS Relative HumidityGuide specifications Hvac Guide SpecificationsWarranty Guide specifications Page Guide specifications Page Guide specifications Page Carrier Corporation Syracuse, New York 910

23XRV specifications

The Carrier 23XRV is a high-performance commercial rooftop unit designed for versatility and efficiency in various applications. As part of Carrier's commitment to providing superior HVAC solutions, the 23XRV combines advanced technologies with robust construction to meet the demands of modern commercial environments.

One of the standout features of the 23XRV is its superior energy efficiency. The unit is equipped with a variable speed compressor that adjusts the cooling output based on real-time demand. This allows for optimal efficiency even during partial load conditions, significantly reducing energy consumption and operational costs. It boasts a high SEER (Seasonal Energy Efficiency Ratio) and EER (Energy Efficiency Ratio) ratings, making it an environmentally friendly option that helps to lower carbon footprints.

The 23XRV is constructed with a strong focus on durability. Its robust frame and high-quality materials ensure resilience against harsh weather conditions and extend the unit's service life. The design also incorporates sound-attenuating features, minimizing operational noise and making it suitable for noise-sensitive environments like schools and hospitals.

In terms of technology, the Carrier 23XRV utilizes advanced microprocessor controls that enable precise temperature management and system diagnostics. This smart control system provides enhanced functionality, allowing for easy monitoring and configuration through a user-friendly interface. Additionally, the unit is compatible with remote monitoring systems, enabling building managers to track performance and make adjustments as necessary from any location.

The refrigerant used in the 23XRV is R-410A, which is chlorine-free and meets stringent environmental regulations. The choice of refrigerant not only enhances the efficiency of the system but also aligns with global efforts to phase out ozone-depleting substances.

Maintenance and serviceability are also key considerations in the design of the 23XRV. Features such as easy access to components for routine maintenance, modular construction for quicker repairs, and extensive diagnostic capabilities reduce downtime and enhance overall reliability.

Overall, the Carrier 23XRV stands out in the commercial HVAC market with its combination of efficiency, durability, and advanced technology. It is an excellent choice for various commercial applications, providing reliable performance and improved energy management for building owners and operators looking to enhance their HVAC systems.