Appendix_7__-_XX_Carrier_30HK_Chiller_Data.pdf

Copyright 2005 Carrier Corporation Form 30H-8PD

Economical packaged chillers are designed to save energy and include:

• microprocessor control

• application versatility

• long range cost savings

• quiet, reliable operation

Features/Benefits Easy to install, reciprocating liquid chillers offer cost-effective and reliable cooling.

Installation ease The 30HK,HL,HW units are designed to reduce installation time and costs.

They arrive at the jobsite able to fit easily through a 30-in. (762 mm) (30HW units) or a 36-in. (914 mm) (30HK,HL units) wide opening due to their compact design. The 30HWB, HWC,HWS, and HK units come complete with cooler, condenser(s), compressor(s), controls, refrigerant charge, and oil charge, and need only the addition of a condenser water supply, electrical power, and chilled fluid distribution system.

The 30HWA and HL units are designed for use with a remote condenser, and have a refrigerant or nitrogen holding charge. They may be connected to air-cooled, evaporative condenser(s) or even water-cooled condenser(s) sized to meet specific job requirements.

All internal piping and wiring is com-plete, and since all essential controls and protective devices are installed at the factory, installation is completed in minimal time. The 60-Hz units are UL (Underwriters’ Laboratories, U.S.A.)

and CSA (Canadian Standards Associ-ation) listed and conform to ASME (American Society of Mechanical Engi-neers) standards, simplifying the final inspection process.

30HK,HL,HW

Reciprocating Liquid Chillers with COMFORTLINK™ Controls 50/60 Hz

Nominal Capacities:

30HW 15 to 40 Tons (53 to 141 kW)

30HK 40 to 60 Tons (141 to 210 kW) 30HL 50 and 60 Tons (176 and 210 kW)

Product Data

30HWA,B

30HK,HL

30HWC,S

ComfortLink™ control ComfortLink controls allow simple and easy interface to chillers with outstanding performance and value.

The 30HK,HL,HW liquid chillers employ more than the latest advanced microprocessor controls, they utilize an expandable platform that can adjust as needs change. ComfortLink controls are used in diverse applications from stand-alone operation to remotely monitored and operated multi-chiller plants.

ComfortLink controls are fully com-municating, and are cable ready for connection to a Carrier Comfort Net-work® (CCN) system. Occupancy scheduling, temperature and pressure read-outs, optional sensors, and the ComfortLink scrolling marquee clear language display features provide a connection to a world of carefree comfort.

Superior temperature control equals potential for greater productivity Whether in the classroom, on the production floor, or in the office, ComfortLink controls can assist in adaptation to changing weather and business conditions. Accurate tempera-ture control, provided by the Carrier ComfortLink system, helps to maintain higher levels of indoor air quality, ther-mal comfort, and space productivity.

While many chillers use only leaving fluid temperature control, the 30HK,HL,HW chillers utilize leaving fluid temperature control with a standard entering fluid temperature compensation. This Carrier exclusive provides smart control and intelligent machine capacity staging. Unlike many chillers, Carrier model 30HK,HL,HW chillers do not require constant fluid flow. The ability to operate with vari-able flow also allows building owners to realize even greater overall system energy savings in the chilled water pumping system of up to 85%, and not just at the chiller. Leaving temperature set point can be set to within 0.1° F.

Energy management made easy While 30HK,HL,HW chillers have many standard features such as net-work communications capability and temperature reset based on return fluid temperature, they can also expand as needs change. Supply temperature re-set based on outside air or space tem-perature is as easy as adding a ther-mistor. The Energy Management option allows use of changing utility rate structures with easy to use load shedding, demand limiting and temper-ature reset capabilities. Reset triggered via 4 to 20 mA signal makes integrat-ing from an existing building manage-ment system simple.

Operating reliability Carrier’s proven, serviceable, semi-hermetic compressor(s) are standard on all units. In addition, standard solid-state electrical controls are fully tested and offer the utmost in reliability.

The 30HK,HL chillers have dual independent refrigerant circuits that provide redundancy. In the unlikely event of a component failure, the chiller will still be able to operate (at a reduced capacity).

Units have the capability to start and pull down with up to 95 F (35 C) entering-fluid temperature due to the integral MOP (maximum operating pressure) feature of the expansion valve. Multiple-step capacity control allows compressor(s) to load or unload to match changing cooling load requirements.

Compressors are mounted on heavy-duty spring vibration isolators to minimize vibration transmission to the building. Quiet operation is further as-sured by a hot gas muffler that damp-ens hot gas pulsations and provides smooth, trouble-free, quiet perfor-mance. To reduce sound even more, acoustic sound enclosures are available as accessories.

Operating efficiency At full load, 30H chillers provide EERs (Energy Efficiency Ratios) up to 14.7.

Suction cutoff unloading — Un-loading eliminates unnecessary com-pression of refrigerant gases during unloaded operation. This substantially reduces part-load power consumption, resulting in an EER increase of as much as 39.5% (at 33% load).

Ease of service reduces cost When the 30H is in need of inspection and service, saving time is of the essence. The reciprocating, semi-hermetic compressors and controls (solid-state electronic on all units) are familiar to technicians, so problems can be resolved quickly. The 30HWC, HWS, and HK fluid-cooled units have condensers that are cleanable to allow periodic maintenance, which helps to prolong the life of the system.

Table of contents Page

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 Model Number Nomenclature Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 9 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15 Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-19 Selection Procedure Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-40 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41-43 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44-46 Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47,48 Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49-51

Features/Benefits (cont)

LEAVING FLUID TEMPERATURE 44.1° F

Run Status

Service Test

Temperature

Pressures

Setpoints

Inputs

Outputs

Configuration

Time Clock

Operating Modes

Alarms

Alarm Status

ENTER

MODE

ESCAPE

30HWA,B COMPACT SIZE 30HK,HL WITH DUAL REFRIGERANT

CIRCUITS

06E SEMI-HERMETIC COMPRESSOR

AVAILABLE SCROLLING MARQUEE CLEAR LANGUAGE DISPLAY

(Standard on domestic unit)

Model number nomenclature, 30HK,HL units

Model number nomenclature, 30HW units

V-Ph-Hz 1 – 575-3-60 2 – 380-3-60 5 – 208/230-3-60 6 – 460-3-60 9 – 380/415-3-50

Cooler A – Brazed-Plate B – Brazed-Plate C – Brazed-Plate

S – Brazed-Plate

30HW A 040 – D – 6 – 1 KA

30HW – Indoor Liquid Chiller

Unit Size

Packaging 1 – Domestic 3 – Export

Factory-Installed Options KA – Standard, No Options NOTE: For Brine, Sound Enclosure, Mobility Package (HWA/B only), Non-Fused Disconnect, Part-Wind Start, Hot Gas Bypass, and other options, contact a Carrier representative.

Condenser None Brazed Plate Shell-and-Tube with Copper Tubes (mechanically cleanable) Shell-and-Tube with Cupro-Nickel Tubes and Tube Sheets and Zinc Anodes (mechanically cleanable)

Controls C – ComfortLink™ Microprocessor Control with Quickset Single Dial Set Point* D – ComfortLink Microprocessor Control with Scrolling Marquee Display† E – 'D' with Energy Management Module

*Standard on export units.

†Standard on domestic units; factory-installed option on export units.

Volts-Phase-Hz 1 – 575-3-60 5 – 208/230-3-60 6 – 460-3-60 8 – 230-3-50 9 – 380/415-3-50

30HK – 060 – C – 6 0 1 - -

30HK — Fluid-Cooled Reciprocating Liquid Chiller

Unit Size 040*

Packaging 1 – Domestic 3 – Export

30HL — Condendserless Reciprocating Liquid Chiller

Controls C – ComfortLink Microprocessor Control with Quickset Single Dial Set Point† D – ComfortLink Microprocessor Control with Scrolling Marquee Display** E – 'D' with Energy Management Module

Refrigerant

- – R-22

Design Improvement 0 – Original 1-9 – Modification

R

Rated in accordance with ARI Standard 550/590-2003.

(60 Hz Only)

*30HK only.

†Standard on export units.

**Standard on domestic units; factory-installed option on export units.

ASME

U STAMP

(60 Hz Only)

Quality Assurance Certified to ISO 9001:2000

(60 Hz Only)

ENGLISH

LEGEND

*Unless otherwise noted, data is for 30HWB, HWC, and HWS units.

†60 Hz/50 Hz units.

**For size 025 50 Hz units, compressor number is 06E2250; for size 035 50 Hz units, compressor number is 06E7275.

††With transfer switch set to compressor no. 2 position; 40% with transfer switch set to compressor no. 1 position.

***Indicates values for each circuit.

NOTES:

1. Operating weight includes refrigerant operating charge and weight of fluid in the heat exchangers.

2. 30HWB,C,S, and 30HK units are shipped with full operating charge.

UNIT 30 HW-018* HW-025* HW-028* HW-035* HW-040* HK040 HK050 HK060

OPERATING WT (Approximate) — lb

HWB 795 950 1065 1085 1310 — — —

HWC,S 1231 1359 1484 1508 1702 — — —

HK — — — — — 2830/

2875†

2865/ 2980†

2980/ 3020†

REFRIGERANT — lb R-22

HWB 12.5 15.0 17.5 18.5 30.0 — — —

HWC,S 35.0 37.0 42.0 42.0 47.0 — — —

HK — — — — — 70.0 80.0 90.0

COMPRESSOR — — — — — — — —

Model No. 06DG537 06E2150** 06E7265 06E7175** 06E7299 06E2150 06E6175, 06E2150 06E6175

Nominal Hp 15 20 25 30 35 20 (ea) 20,30 30 (ea) Quantity 1 1 1 1 1 2 1 (ea) 2 Cylinders Per Compressor 6 4 6 6 6 4 (ea) 6,4 6 (ea) Capacity Control — Standard

No. of Steps 3 2 3 3 3 4 4 4 Minimum Step Capacity (%) 33 50 33 33 33 25 20†† 33

Capacity Control — With Hot Gas Bypass No. of Steps 4 3 4 4 4 5 5 5 Minimum Step Capacity (%) 10 10 10 10 10 10 10 10

COOLER

Fluid Side — psig 300 300 300 300 300 150 150 150 Refrigerant Side — psig 430 430 430 430 430 235 235 235 Net Fluid Volume — Gal. (includes nozzles) 1.4 1.6 2.1 2.1 3.3 13.1 15.2 15.2 Fluid Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 3 3 3 Outlet 11/2 11/2 11/2 11/2 21/2 3 3 3

CONDENSER

30HWB (Water Cooled)

Water Side — psig 300 300 300 300 300 — — — Refrigerant Side — psig 430 430 430 430 430 — — — Net Water Volume — Gal. (includes nozzles) 0.9 1.2 1.6 1.8 3.3 — — — Water Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 — — — Outlet 11/2 11/2 11/2 11/2 21/2 — — —

30HWC (Water Cooled) Water Side — psig 300 300 300 300 300 — — — Refrigerant Side — psig 365 365 365 365 365 — — — Net Water Volume — Gal. 2.6 2.6 4.0 4.0 7.3 — — — Water Connections — in. Weld

Inlet 11/2 11/2 11/2 11/2 21/2 — — — Outlet 11/2 11/2 11/2 11/2 21/2 — — —

30HWS (Water Cooled) Water Side — psig 300 300 300 300 300 — — — Refrigerant Side — psig 365 365 365 365 365 — — — Net Water Volume — Gal. 2.6 2.6 4.0 4.0 7.3 — — — Water Connections — in. Weld

Inlet 21/2 21/2 21/2 21/2 21/2 — — — Outlet 21/2 21/2 21/2 21/2 21/2 — — —

30HK (Water Cooled) Water Side — psig — — — — — 250 250 250 Refrigerant Side — psig — — — — — 385 385 385 Net Water Volume — Gal. (includes nozzles) — — — — — 4.4,4.4*** 4.4,5.2*** 5.2,5.2*** Water Connections — in. Weld

Inlet — — — — — 21/2 21/2 21/2 Outlet — — — — — 21/2 21/2 21/2

ODS — Outside Diameter, Sweat

Physical data — 30HWB,HWC,HWS,HK fluid-cooled units

SI

LEGEND

*Unless otherwise noted, data is for 30HWB, HWC, and HWS units.

†60 Hz/50 Hz units.

**For size 025 50 Hz units, compressor number is 06E2250; for size 035 50 Hz units, compressor number is 06E7275.

††With transfer switch set to compressor no. 2 position; 40% with transfer switch set to compressor no. 1 position.

***Indicates values for each circuit.

NOTES:

1. Operating weight includes refrigerant operating charge and weight of fluid in the heat exchangers.

2. 30HWB,C,S, and 30HK units are shipped with full operating charge.

UNIT 30 HW-018* HW-025* HW-028* HW-035* HW-040* HK040 HK050 HK060

OPERATING WT (Approximate) — kg

HWB 361 431 483 492 594 — — —

HWC,S 554 611 668 679 766 — — —

HK — — — — — 1284/

1305†

1300/ 1352†

1352/ 1370†

REFRIGERANT — kg R-22

HWB 5.7 6.8 7.9 8.4 13.6 — — —

HWC,S 15.9 16.8 19.1 19.1 21.3 — — —

HK — — — — — 31.2 36.3 40.8

COMPRESSOR

Model No. 06DG537 06E2150** 06E7265 06E7175** 06E7299 06E2150 06E6175, 06E2150 06E6175

Nominal kW 11.1 14.9 18.7 22.4 26.1 14.9 (ea) 14.9,22.4 22.4 (ea) Quantity 1 1 1 1 1 2 1 (ea) 2 Cylinders Per Compressor 6 4 6 6 6 4 (ea) 6,4 6 (ea) Capacity Control — Standard

No. of Steps 3 2 3 3 3 4 4 4 Minimum Step Capacity (%) 33 50 33 33 33 25 20†† 33

Capacity Control — With Hot Gas Bypass No. of Steps 4 3 4 4 4 5 5 5 Minimum Step Capacity (%) 10 10 10 10 10 10 10 10

COOLER

Fluid Side — kPa 2069 2069 2069 2069 2069 1034 1034 1034 Refrigerant Side — kPa 2965 2965 2965 2965 2965 1620 1620 1620 Net Fluid Volume — L (includes nozzles) 5.3 6.1 8.0 8.0 12.5 49.9 57.5 57.5 Fluid Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 3 3 3 Outlet 11/2 11/2 11/2 11/2 21/2 3 3 3

CONDENSER

30HWB (Water Cooled)

Water Side — kPa 2069 2069 2069 2069 2069 — — — Refrigerant Side — kPa 2965 2965 2965 2965 2965 — — — Net Water Volume — L (includes nozzles) 3.4 4.5 6.1 6.8 12.5 — — — Water Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 — — — Outlet 11/2 11/2 11/2 11/2 21/2 — — —

30HWC (Water Cooled) Water Side — kPa 2069 2069 2069 2069 2069 — — — Refrigerant Side — kPa 2517 2517 2517 2517 2517 — — — Net Water Volume — L 9.8 9.8 15.4 15.4 27.6 — — — Water Connections — in. Weld

Inlet 11/2 11/2 11/2 11/2 21/2 — — — Outlet 11/2 11/2 11/2 11/2 21/2 — — —

30HWS (Water Cooled) Water Side — kPa 2069 2069 2069 2069 2069 — — — Refrigerant Side — kPa 2517 2517 2517 2517 2517 — — — Net Water Volume — L 9.8 9.8 15.4 15.4 27.6 — — — Water Connections — in. Weld

Inlet 21/2 21/2 21/2 21/2 21/2 — — — Outlet 21/2 21/2 21/2 21/2 21/2 — — —

30HK (Water Cooled) Water Side — kPa — — — — — 1724 1724 1724 Refrigerant Side — kPa — — — — — 2655 2655 2655 Net Water Volume — L (includes nozzles) — — — — — 17,17*** 17,20*** 20,20*** Water Connections — in. Weld

Inlet — — — — — 21/2 21/2 21/2 Outlet — — — — — 21/2 21/2 21/2

ODS — Outside Diameter, Sweat

Physical data — 30HWB,HWC,HWS,HK fluid-cooled units (cont)

ENGLISH

LEGEND

*30HWA and HL units (condenserless) are shipped with a refrigerant holding charge. Approximate cooler operating charge is shown.

†60 Hz/50 Hz units.

**With transfer switch set to compressor no. 2 position; 40% with trans-fer switch set to compressor no. 1 position.

NOTE: Operating weight includes refrigerant operating charge and weight of fluid in the heat exchangers.

SI

LEGEND

*30HWA and HL units (condenserless) are shipped with a refrigerant holding charge. Approximate cooler operating charge is shown.

†60 Hz/50 Hz units.

**With transfer switch set to compressor no. 2 position; 40% with trans-fer switch set to compressor no. 1 position.

NOTE: Operating weight includes refrigerant operating charge and weight of fluid in the heat exchangers.

UNIT 30 HWA018 HWA025 HWA028 HWA035 HWA040 HL050 HL060

OPERATING WT (Approximate) — lb 740 880 960 975 1080 2070/ 2130†

2130/ 2190†

REFRIGERANT* — lb R-22

1.6 2.0 2.4 2.4 3.0 10.5 10.6

COMPRESSOR

Model No. 06DG537 06E2250 06E7265 06E7275 06E7299 06E6275, 06E2250 06E6275

Nominal Hp 15 20 25 30 35 30,20 30 (ea) Quantity 1 1 1 1 1 1 (ea) 2 Cylinders Per Compressor 6 4 6 6 6 6,4 6 Capacity Control — Standard

No. of Steps 3 2 3 3 3 4 4 Minimum Step Capacity (%) 33 50 33 33 33 20** 33 Capacity Control — With Hot Gas Bypass

No. of Steps 4 3 4 4 4 5 5 Minimum Step Capacity (%) 10 10 10 10 10 10 10

COOLER

Fluid Side — psig 300 300 300 300 300 150 150 Refrigerant Side — psig 430 430 430 430 430 235 235 Net Fluid Volume — Gal. (includes nozzles) 1.4 1.6 2.1 2.1 3.3 13.1 15.2 Fluid Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 3 3 Outlet 11/2 11/2 11/2 11/2 21/2 3 3

CONDENSER CONNECTIONS

Refrigerant Connections — in.

Liquid Line ODS 7/8 7/8 7/8 7/8 7/8 2...7/8 2...7/8 Discharge Line ODS 11/8 11/8 13/8 13/8 15/8 2...13/8 2...13/8

ODS — Outside Diameter, Sweat

UNIT 30 HWA018 HWA025 HWA028 HWA035 HWA040 HL050 HL060

OPERATING WT (Approximate) — kg 336 399 435 442 490 940/ 967†

967/ 994†

REFRIGERANT* — kg R-22

0.7 0.9 1.1 1.1 1.4 4.8 4.8

COMPRESSOR

Model No. 06DG537 06E2250 06E7265 06E7275 06E7299 06E6275, 06E2250 06E6175

Nominal kW 11.2 14.9 18.7 22.4 26.1 22.4,14.9 22.4 (ea) Quantity 1 1 1 1 1 1 (ea) 2 Cylinders Per Compressor 6 4 6 6 6 6,4 6 Capacity Control — Standard No. of Steps 3 2 3 3 3 4 4 Minimum Step Capacity (%) 33 50 33 33 33 20** 33 Capacity Control — With Hot Gas Bypass

No. of Steps 4 3 4 4 4 5 5 Minimum Step Capacity (%) 10 10 10 10 10 10 10

COOLER

Fluid Side — kPa 2069 2069 2069 2069 2069 1034 1034 Refrigerant Side — kPa 2965 2965 2965 2965 2965 1620 1620 Net Fluid Volume — L (includes nozzles) 5.3 6.1 8.0 8.0 12.5 49.9 57.5 Fluid Connections — in. Grooved End

Inlet 11/2 11/2 11/2 11/2 21/2 3 3 Outlet 11/2 11/2 11/2 11/2 21/2 3 3

CONDENSER CONNECTIONS

Refrigerant Connections — in.

Liquid Line ODS 7/8 7/8 7/8 2...7/8 2...7/8 Discharge Line ODS 11/8 13/8 15/8 2...13/8 2...13/8

ODS — Outside Diameter, Sweat

Physical data — 30HWA,HL condenserless units

*Factory-installed option.

†Field-installed accessory.

**Available as a special order on 30HK,HL units.

††Scrolling Marquee display is standard on domestic units.

Factory-installed options Scrolling Marquee display (export unit) — Clear lan-guage displays English, Spanish, French, and Portuguese.

Text scrolls allow access to chiller operating parameters (operating status, temperatures, and pressures). Display is standard on domestic units.

Energy Management Module (EMM) — Energy Man-agement Module is used for 4 to 20 mA leaving fluid temperature reset, cooling set point reset, 4 to 20 mA demand limit and two-step demand limit. Temperature reset lets the unit reset the leaving fluid temperature to a higher temperature during low load conditions. Temper-ature reset can also be accomplished based on return fluid, outdoor air or space temperature. (The EMM option is not required when using entering-water, outdoor-air, or space temperature for temperature reset. These types of reset are available with the main board. However, an accessory thermistor is required for outdoor air and/or space tem-perature reset.) Demand limiting allows the unit capacity to be limited during periods of peak energy usage. Demand limit requires an external 4 to 20 mA signal or a 2-step remote pair of dry contacts. Both the 4 to 20 mA and 2-step demand limit percentage values are adjustable. This is also available as a field-installed accessory.

Medium temperature brine (30HW units) — Unit may be factory-modified to permit brine operation from 15 to 39 F (–9.4 to 3.9 C) leaving brine temperature. Re-frigeration circuit components, such as the expansion de-vice and low-pressure safety switch, are modified to permit the low refrigerant flow rates typical of brine duty opera-tion. Scrolling Marquee display is required with this option.

NOTE: This is a special order item for 30HK,HL units.

Sound enclosure panels (30HW units) — Units may be ordered with acoustically insulated sheet metal enclo-sures installed around the compressor section to reduce radiated sound levels. Panels are also available as a field-installed accessory.

NOTE: This is only offered as an accessory on the 30HK,HL units.

Mobility package (30HWA/B only) — Wheels may be factory-installed on the unit to aid in transportation of unit to its final installation site. Wheels are rubber type, pivot for easy unit maneuvering, and are lockable for safety.

Mobility package is also available as a field-installed acces-sory for all 30HW units.

Non-fused disconnect (30HW units) — For wiring convenience, an electrical power disconnect for line and control power may be factory-installed.

Part-wind start (30HW025-040 only) — This factory-installed option reduces the starting current of the compres-sor. This option provides a one-second delay between start-ing the part-wind and primary compressor windings. As a result, the instantaneous current flow at start-up is reduced.

NOTE: This is a special order item for 30HK,HL units.

Hot gas bypass (30HW) — Hot gas bypass control can be factory-installed to allow additional capacity reduction for unit operation below the minimum step of unloading.

This option includes a control solenoid valve, a shutoff valve, and necessary controls.

NOTE: This is only offered as an accessory on the 30HK,HL units.

Field-installed accessories Proof-of-flow switch — The switch connects to a termi-nal strip in the chiller and senses fluid pressure differential across the cooler. This accessory is recommended for all chillers and also works well in conjunction with the Chill-ervisor control accessory when up to 4 chillers are applied in a parallel piping arrangement.

Pressure gage panel — Panel reads suction and dis-charge pressures and includes a shutoff valve for each gage.

NOTE: For 30HK,HL units, one package is required per compressor.

Sound enclosure panels (30HK,HL only) — This ac-cessory is an acoustically insulated sheet metal enclosure that is installed around the compressor section and reduces radiated sound levels. Panels are also available as a factory-installed option for 30HW units.

Vibration isolators (30HW units) — Isolators are in-stalled on the base of the unit to reduce vibration transmis-sion from the compressor through the floor. This package consists of 4 spring isolators with ribbed neoprene pads sized specifically for each model.

NOTE: The 30HWC,S units each require 2 kits.

Compressor ground fault sensor — If a short to ground is sensed by this accessory package, the compres-sor automatically shuts down. This protects the refrigera-tion system from acid formation typical of a compressor motor short to ground condition. Compressor shut down is initiated when a 2.5 ± 2 amps ground current is sensed by a torrid installed around the compressor power leads.

Oil safety switch — The switch senses pressure differen-tial across the compressor oil pump and shuts down the compressor in the event of loss of oil pressure. The safety switch is an accessory for the 30HWB,C,S,HK standard units and is standard on the 30HWA,HL, and all brine units.

ITEM OPTION* ACCESSORY†

Medium Temperature Brine (30HW)** X Sound Enclosure Panels X (HW) X (HK,HL) Mobility Package (30HW) X (HWA/B) X Non-Fused Disconnect (30HW) X Part-Wind Start (30HW025-040)** X Hot Gas Bypass X (HW) X (HK,HL) Proof-of-Flow Switch X Scrolling Marquee Display (export)†† X Vibration Isolators (30HW) X Compressor Ground Fault Sensor X Oil Safety Switch X Chillervisor System Manager III X Pressure Gage Panel X Condenser Manifold Package (30HK) X Energy Management Module (EMM) X X

Options and accessories

Chillervisor System Manager III — This control can be used to regulate up to eight 30HK,HL,HW chillers.

Energy Management Module (EMM) — Energy Manage-ment Module is used for 4 to 20 mA leaving fluid tempera-ture reset, cooling set point reset, 4 to 20 mA demand limit and two-step demand limit. Temperature reset lets the unit reset the leaving fluid temperature to a higher temper-ature during low load conditions. Temperature reset can also be accomplished based on return fluid, outdoor air or space temperature. (The EMM option is not required when using entering-water, outdoor-air, or space temperature for temperature reset. These types of reset are available with the main board. However, an accessory thermistor is required for outdoor air and/or space temperature reset.)

Demand limiting allows the unit capacity to be limited dur-ing periods of peak energy usage. Demand limit requires an external 4 to 20 mA signal or a 2-step remote pair of dry contacts. Both the 4 to 20 mA and 2-step demand limit percentage values are adjustable. This is also available as a factory-installed option.

Mobility package (30HW units) — Wheels may be field-installed on the unit to aid in transportation of unit to its final installation site. Wheels are rubber type, pivot for easy unit maneuvering, and are lockable for safety.

Mobility package is also available as a factory-installed option on 30HWA/B units.

NOTE: The 30HWC,S units require 2 packages each.

Condenser manifold package (30HK units) — The manifold provides common water inlet and outlet connec-tions and consists of 2 steel manifolds, each in 2 sections.

Field welding is required.

Hot gas bypass package (30HK,HL units) — The hot gas bypass package allows additional capacity reduction for unit operation below the minimum step of unloading.

Dimensions — 30HWC,S018-040 (fluid-cooled)

UNIT

30HWC,S

DIMENSIONS — in. (mm) A B C D E F G

018 47.50 (1206)

9.90 (251)

14.00 (356)

18.15 (461)

17.95 (456)

6.69 (170)

34.20 (869)

025 48.30 (1227)

9.90 (251)

15.50 (394)

18.15 (461)

17.95 (456)

6.69 (170)

34.20 (869)

028 48.00 (1219)

10.00 (254)

15.80 (401)

18.15 (461)

17.95 (456)

6.69 (170)

34.20 (869)

035 48.20 (1224)

10.00 (254)

15.90 (404)

18.15 (461)

17.95 (456)

6.69 (170)

34.20 (869)

040 47.80 (1214)

10.00 (254)

15.90 (404)

18.45 (469)

17.36 (441)

6.40 (163)

34.94 (837)

OPERATING WEIGHT

UNIT

30HWC,S

OPERATING WEIGHT

lb (kg)

018 1231 (554) 025 1358 (611) 028 1484 (668) 035 1508 (679) 040 1702 (766)

WEIGHT DISTRIBUTION AT EACH MOUNTING HOLE — lb (kg) Unit

30HWC,S

Compr. End (4 Places)

Control Box End (4 Places)

018 171 ( 77.6) 136 (61.7) 025 196 ( 88.9) 144 (65.3) 028 211 ( 95.7) 160 (72.6) 035 216 ( 98.0) 161 (73.0) 040 240 (108.9) 185 (83.9)

VOLTAGE MODEL NUMBERS

MODEL VOLT-Hz 100 575-60 200 380-60 500 208/230-60 600 460-60 900 400-50

DISCONNECT

(Amps)

LOCATION — in. (mm) MODEL 30HWC,S (SEE VOLTAGE MODEL NUMBERS TABLE) J K L 018 025 028 035 040

80 83.11 (2111)

4.38 (111)

3.33 (85)

100,200 600,900

100,200 600,900

100,200 600,900

100,200 600,900 100

100 85.11 (2162)

5.00 (127)

4.33

(110) 500 500 500 — 200,600,900

200 89.24 (2267)

10.00 (254)

7.46

(189) — — — 500 500

NOTES:

1. Operating weight includes weight of water and refrigerant.

2. Denotes center of gravity.

3. Denotes accessory or factory-installed option.

4. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

5. Allow 36 in. (914) clearance on all sides unless otherwise specified.

Dimensions — 30HK040 (fluid cooled)

NOTES:

1. Standard unit shown with the sound enclosure accessory.

2. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

3. Allow 36 in. (914) clearance on all sides unless otherwise noted.

STANDARD UNIT

UNIT SIZE

30HK

WEIGHT DISTRIBUTION AT MOUNTING HOLES

lb (kg)

OPERATING

WEIGHT

lb (kg)

DIMENSIONS

in. (mm)

1 2 3 4 A B

040 50 Hz 721 (327)

(328)

(325)

(325)

(1305) 275/16

(693) 101/2 (267)

040 60 Hz 710 (322)

(323)

(320)

(319)

(1284)

Dimensions — 30HK050,060 (fluid-cooled)

STANDARD UNIT

UNIT SIZE

30HK

WEIGHT DISTRIBUTION AT MOUNTING HOLES

lb (kg)

OPERATING

WEIGHT

lb (kg)

DIMENSIONS

in. (mm)

1 2 3 4 A B

50 Hz 838

(380)

(381)

(378)

(377)

(1352)

275/16 (693)

101/2 (267)

60 Hz 787 (357)

(358)

(355)

(354)

(1300)

50 Hz 853

(387)

(388)

(385)

(384)

(1370)

60 Hz 838 (380)

(381)

(378)

(377)

(1352)

NOTES:

1. Standard unit shown with the sound enclosure accessory.

2. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

3. Allow 36 in. (914) clearance on all sides unless otherwise noted.

Dimensions — 30HWB018-040 (fluid-cooled)

UNIT

30HWB

DIMENSIONS — in. (mm) A B C D E F G H Z

018 13.14 (334)

18.72 (475)

22.02 (559)

33.85 (860)

11.72 (298)

5.75 (146)

12.29 (312)

17.95 (456)

9.28 (236)

025 13.22 (336)

18.25 (464)

22.10 (561)

33.85 (860)

11.72 (298)

5.75 (146)

12.29 (312)

17.95 (456)

9.28 (236)

028 13.18 (335)

17.71 (450)

22.39 (569)

33.85 (860)

11.72 (298)

5.75 (146)

12.29 (312)

17.95 (456)

9.28 (236)

035 13.45 (342)

17.98 (457)

22.68 (576)

33.85 (860)

11.72 (298)

5.75 (146)

12.29 (312)

17.95 (456)

9.28 (236)

040 13.27 (337)

17.75 (451)

23.44 (595)

34.15 (867)

11.34 (288)

8.22 (209)

12.38 (314)

17.36 (441)

8.22 (209)

OPERATING WEIGHT

UNIT

30HWB

OPERATING WEIGHT

lb (kg)

018 795 (360) 025 950 (431) 028 1065 (483) 035 1085 (492) 040 1310 (594)

DISCONNECT

(Amps)

LOCATION — in. (mm) MODEL 30HWB

(SEE VOLTAGE MODEL NUMBERS TABLE)

J K L M 018 025 028 035 040

80 3.33 (85)

2.98 (76)

14.44 (367)

46.50 (1181)

100,200 600,900

100,200 600,900

100,200 600,900

100,200 600,900 100

100 4.33 (110)

4.98 (126)

14.82 (376)

47.50 (1207) 500 500 500 — 200,600

200 7.46 (189)

11.19 (284)

15.82 (402)

54.50 (1384) — — — 500 500

VOLTAGE

MODEL NUMBERS

MODEL VOLT-Hz 100 575-60 200 380-60 500 208/230-60 600 460-60 900 400-50

NOTES:

1. Operating weight includes weight of water and refrigerant. Equal weight distribu-tion at all four (4) points.

2. Denotes center of gravity.

3. Denotes accessory or factory-installed option.

4. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

Dimensions — 30HWA018-040 (condenserless)

UNIT

30HWA

DIMENSIONS — in. (mm) A B C D E F G

018 12.58 (320)

19.20 (488)

20.48 (520)

33.85 (860)

11.72 (298)

5.75 (146)

17.95 (456)

025 12.82 (326)

18.98 (482)

20.57 (522)

33.85 (860)

11.72 (298)

5.75 (146)

17.95 (456)

028 12.64 (321)

18.31 (465)

20.73 (527)

33.85 (860)

11.72 (298)

5.75 (146)

17.95 (456)

035 12.87 (327)

18.62 (473)

20.81 (529)

33.85 (860)

11.72 (298)

5.75 (146)

17.95 (456)

040 12.66 (322)

18.64 (473)

21.30 (541)

34.15 (867)

11.34 (288)

8.22 (209)

17.36 (441)

OPERATING WEIGHT

UNIT

30HWA

OPERATING

WEIGHT

lb (kg)

018 740 (335) 025 880 (399) 028 960 (435) 035 975 (442) 040 1080 (490)

DISCONNECT

(Amps)

LOCATION — in. (mm) MODEL 30HWA (SEE VOLTAGE MODEL

NUMBERS TABLE)

J K L M 018 025 028 035 040

80 3.33 (85)

2.98 (76)

14.44 (367)

46.50 (1181)

100,200 600,900

100,200 600,900

100,200 600,900

100,600 900 —

100 4.33 (110)

4.98 (126)

14.82 (376)

47.50 (1207) 500 500 — 200 100,200

600,900

200 7.46 (189)

11.19 (284)

15.82 (402)

54.50 (1384) — — 500 500 500

VOLTAGE

MODEL NUMBERS

MODEL VOLT-Hz 100 575-60 200 380-60 500 208/230-60 600 460-60 900 400-50

NOTES:

1. Operating weight includes weight of water and refrigerant.

Equal weight distribution at all four (4) points.

2. Denotes center of gravity.

3. Denotes accessory or factory-installed option.

4. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

Dimensions — 30HL050,060 (condenserless)

STANDARD UNIT

UNIT SIZE

30HL

WEIGHT DISTRIBUTION AT

MOUNTING HOLES

lb (kg)

OPERATING

WEIGHT

lb (kg)

DIMENSIONS

in. (mm)

1 2 3 4 A B

50 Hz 534

(242)

(243)

(241)

(240) (967)

275/16 (693)

101/2 (267)

60 Hz 519 (162)

(163)

(234)

(233)

(940)

50 Hz 550

(176)

(250)

(247)

(247) (994)

60 Hz 534 (242)

(243)

(241)

(240)

(967)

NOTES:

1. Standard unit shown with the sound enclosure accessory.

2. Dimensions in ( ) are in millimeters and weights in ( ) are in kilograms.

3. Allow 36 in. (914) clearance on all sides unless otherwise noted.

Leveling unit To ensure proper oil return, be sure that unit is level, particularly in its major lengthwise dimension, as com-pressor oil return piping runs in that direction.

It should be determined prior to installation if any special treatment is required to ensure a level installation.

Cooler fluid temperature

1. Maximum sustained leaving chilled-fluid temperature

(LCWT) is 60 F (16 C). For sustained operation, entering-fluid temperature should not exceed 75 F (24 C). Unit can start and pull down with up to 95 F (35 C) entering-fluid temperature due to MOP (maxi-mum operating pressure) feature of the expansion valve.

2. Minimum LCWT for standard units is 40 F (4 C).

Lower LCWT can be used on medium temperature brine applications. Refer to Medium Temperature Brine Applications section below. For applications with ratings below 40 F (4 C) on standard units, con-tact a local Carrier representative.

Medium Temperature Brine Applications In all brine duty applications, a suitable brine (or antifreeze and water solution) must be provided to ensure freeze pro-tection. The solution crystallization point of the brine should be below the suction temperature of the cooler, and at least 15° F (8.3° C) below the leaving brine tempera-ture. The brine solution must also be properly inhibited to provide suitable corrosion protection.

NOTE: Medium temperature brine is a special order op-tion on 30HK,HL units.

Condenser (30HWB,C,S and 30HK units) water temperature

1. Maximum leaving condenser-water temperature is 130 F (54 C) for 30HW 50 Hz units, and 104 F (40 C) for 60 Hz units and 30HK 50 Hz units.

2. Minimum entering condenser-water temperature without condenser flow regulation is 70 F (21 C).

Cooler and water-cooled condenser flow range Ratings and performance data in this publication are for a cooling temperature rise of 10° F (5.6° C) and are suitable for a range from 5 to 15° F (2.8 to 8.3° C) temperature rise without adjustment. Units may be operated at a differ-ent temperature range, provided flow limits are not exceeded and corrections to capacity, etc. are made. For minimum flow rates, see Minimum Cooler and Condenser Flow Rates and Minimum Loop Volume table. High flow rate is limited by pressure drop that can be tolerated. If an-other temperature rise is used, apply LCWT correction as given in Capacity Correction and Selection Procedure sec-tions on pages 18 and 20.

Minimum cooler flow — The minimum cooler flow (maximum cooler temperature rise) for standard units is shown in Minimum Cooler and Condenser Flow Rates and Minimum Loop Volume table below. When gpm (L/s) re-quired is lower (or rise is higher), follow recommendations below:

a. Multiple smaller chillers may be applied in series, each providing a portion of the design temperature rise.

b. Chilled fluid may be recirculated to raise flow rate.

However, the mixed temperature entering the cooler must be maintained at a minimum of at least 5° F (2.8° C) above the leaving chilled fluid temperature.

c. On 30HK,HL units, special baffling is required to allow minimum flow rate to be reduced to 12%.

NOTE: Recirculation flow is shown below.

Maximum cooler flow (5 gpm/ton or < 5° F rise [0.09 L/s • kW or < 2.7° C rise]) — The maxi-mum cooler flow results in practical maximum pressure drop through cooler.

The return fluid may bypass the cooler to keep pressure drop through the cooler within acceptable limits. This per-mits a higher ∆T with lower fluid flow through cooler and mixing after cooler.

NOTE: Bypass flow is shown on page 17.

MINIMUM COOLER AND CONDENSER FLOW RATES AND MINIMUM LOOP VOLUME

LEGEND

*30HWB,C,S, and 30HK only.

†Minimum system fluid volumes.

NOTES:

Gallons = V x ARI capacity in tons.

Liters = N x ARI capacity in kW.

RECIRCULATION FLOW

UNIT SIZE

COOLER CONDENSER*

MINIMUM

COOLER

LOOP

VOLUME†

Gal./Min L/s Gal./Min L/s Gal. L

30HW018 22.5 1.4 22.5 1.4 44 167

30HW025 30.0 1.9 30.0 1.9 59 223

30HW028 37.5 2.4 37.5 2.4 76 288

30HW035 45.0 2.8 45.0 2.8 85 322

30HW040 57.0 3.6 57.0 3.6 113 428

30HK040 56.0 3.5 67.0 4.2 120 454

30HK,HL050 68.0 4.3 76.0 4.8 148 560

30HK,HL060 68.0 4.3 83.0 5.2 174 659

ARI — Air Conditioning and Refrigeration Institute N — Liters per kW V — Gallons per ton

APPLICATION V N

Normal Air Conditioning 3 3.25 Process Type Cooling 6 to 10 6.5 to 10.8 Low Ambient Operation 6 to 10 6.5 to 10.8

Application data

Variable cooler flow rates — These variable rates may be applied to standard chillers. However, the unit will at-tempt to maintain a constant leaving chilled-fluid tempera-ture. In such cases, minimum fluid loop volume must be in excess of 3 gallons per ton (3.2 L per kW), and flow rate must change in steps of less than 10% per minute. Apply 6 gal per ton (6.5 L per kW) fluid loop volume minimum if flow rate changes more rapidly.

Minimum water-cooled condenser flow — This value (maximum rise) is shown in Minimum Cooler and Con-denser Flow Rates and Minimum Loop Volume table on page 16. Condensers may be piped in series. Ensure leav-ing-water temperature does not exceed 104 F (40 C).

Chilled fluid loop volume — The chilled fluid loop vol-ume in circulation must equal or exceed 3 gal per ton of cooling (3.25 L per kW) for temperature stability and accu-racy in normal air conditioning applications. (For example, a 30HW040 would require 113 gal [428 L] in circulation in system loop — see Minimum Cooler and Condenser Flow Rates and Minimum Loop Volume table on page 16.) For process jobs where accuracy is vital or for operation at am-bient temperature below 32 F (0° C) with low unit loading conditions, there should be from 6 to 10 gal per ton (6.5 to

10.8 L per kW). To achieve this volume, it is often neces-

sary to install a tank in the loop. Tank should be baffled to ensure there is no stratification, and that water (or brine) entering tank is adequately mixed with liquid in the tank.

NOTE: Tank installation is shown below.

Fouling factor — The factor used to calculate tabulated ratings was 0.00010 ft2 • hr • F/Btuh (.000018 m2 • k/W). As fouling factor is increased, unit capacity decreas-es and compressor power increases. To determine selec-tions at other fouling factors, use chiller program in the Electronic Catalog.

30HWA and 30HL remote condenser requirements

1. Ensure each refrigerant circuit has its own head pres-sure control.

2. Condenser must provide 15° F (8.3° C) subcooling, a maximum of 40° F (22.2° C) difference between satu-rated condensing temperature and outdoor ambient temperature (to prevent overload at high ambient temperatures), and a minimum of 20° F (11.1° C) dif-ference (to ensure subcooling).

3. Do not manifold independent refrigerant circuits into a single condenser.

4. Condenser should not be located more than 15 ft (4.57 m) below chiller to maintain subcooling.

5. Design discharge and liquid piping according to Carrier System Design Manual.

6. Filter driers (field-supplied) are required.

7. Field-supplied liquid line solenoid valves are required.

The solenoid valves must be located between the field-supplied liquid line filter driers and the unit.

Oversizing chillers Oversizing chillers by more than 15% at design conditions must be avoided as the system operating efficiency will be adversely affected (resulting in greater and/or excessive electrical demand and cycling of compressors). When fu-ture expansion of equipment is anticipated, install a single chiller to meet present load requirements and install a sec-ond chiller to meet the additional load demand.

It is also recommended that the installation of 2 smaller chillers be considered where operation at minimum load is critical. The operation of a smaller chiller loaded to a greater percent of minimum is preferred to operating a single chiller at or near its minimum recommended value.

Hot gas bypass should not be used as a means to allow oversizing chillers. Hot gas bypass should be given consid-eration where substantial operating time is anticipated be-low the minimum unloading step.

Strainers A strainer with a minimum of 20 mesh must be installed in both the cooler fluid and condenser water inlet lines on 30HWB,C,S and 30HK units, just ahead of and as close as possible to the cooler and condenser. For 30HWA and 30HL units, this requirement applies only to the cooler.

Parallel chillers Where chiller capacities greater than can be supplied by a single 30H chiller are required, or where stand-by capabili-ty is desired, chillers may be installed in parallel. Units may be of the same or different sizes. However, cooler and con-denser flow rates must be balanced to ensure proper flow to each chiller. The accessory Chillervisor System Manager III control should be used for proper leaving chilled fluid temperature control and to ensure proper staging sequence of up to 8 chillers. Refer to the accessory Chill-ervisor System Manager III control installation instructions for further details.

BYPASS FLOW

TANK INSTALLATION

Series chillers Where a large temperature drop (greater than 25 F [13.9 C]) is desired and higher fluid pressure drop across the cooler can be tolerated, chillers may be installed in series. The leaving fluid temperature sensors need not be relocated. However, the cooler minimum entering fluid temperature limitations should be considered for the chill-ers located downstream of other chillers. Condensers should be piped in parallel to maximize capacity and effi-ciency. This should also minimize condenser pressure drop and saturated condensing temperatures. However, if con-densers are piped in series, ensure that the leaving water temperature does not exceed 104 F (40 C) for 60 Hz units or 130 F (54 C) for 50 Hz units.

Energy management Demand limiting and load shedding are popular techniques used to reduce peak electric demands typically experienced during hot summer days when air conditioning loads are highest. When utility electricity demands exceed a certain level, electrical loads are turned off to keep the peak de-mands below a prescribed maximum limit. Compressor unloading will reduce electrical demand while allowing the chiller to operate under part-load capacity and maintain partial chilled fluid cooling. The Energy Management Mod-ule can be added to accomplish this.

Electrical demand may be limited by unloading the chill-er to a predetermined percentage of the load. One stage of unloading can be initiated by a remote signal to signifi-cantly reduce the chiller power consumption. This power reduction applies to the full load power at nominal condi-tions. The demand limit control should not be cycled less than 10 minutes on and 5 minutes off.

Duty cycling Duty cycling will cycle an electrical load at regular intervals, regardless of electrical demand. This reduces the electrical demand by “fooling” demand measuring devices. Duty cy-cling of the entire compressor is NOT recommended since motor windings and bearings will be damaged by constant cycling.

Part-wind start (option for 30HW025-040 units, special order for 30HK,HL units) Part-wind start is not generally required on 30HK,HL chill-ers due to use of multiple small compressors allowing smaller load increments, but is available if required. Maxi-mum instantaneous current flow should be used in deter-mining need.

The instantaneous current flow experienced during chill-er start-up is a function of the compressor motor locked rotor amps (LRA). The LRA draw occurs briefly when the compressor is started and can lead to a peak in the electri-cal demand. Chillers with part-wind compressors have 2 sets of compressor motor windings (per compressor) to allow for reduced instantaneous current flow during com-pressor start-up.

Vibration isolation All compressors are spring isolated. External vibration iso-lation is not generally required, but is available for 30HW units as an accessory if desired.

Cooler and water-cooled condenser freeze protection If chiller or fluid lines are in an area where ambient condi-tions fall below 32 F (0° C), it is recommended that an antifreeze solution be added to protect the unit and fluid piping to a temperature 15° F (8.3° C) below the lowest anticipated ambient temperature. In brine duty applica-tions where the leaving cooler fluid temperature is below 40 F (4.4 C), the brine solution (antifreeze) option (30HW;

special order on 30HK,HL) should be selected so that the freeze point is at least 15° F (8.3° C) below the cooler leav-ing fluid temperature and below the suction temperature at the cooler. Corrections to performance as indicated in the Capacity Correction and Selection Procedure sections be-low and on page 20 must be applied.

Use only antifreeze solutions approved for heat ex-changer duty. Use of automotive antifreezes is not recom-mended because of the fouling that can occur once their relatively short-lived inhibitor breaks down.

If not protected with an antifreeze solution, draining cooler and outdoor piping is recommended if system is not to be used during freezing weather conditions.

Capacity correction (antifreeze) If unit or fluid lines connected to the unit are in an area where ambient temperature falls below 32 F (0° C), it is strongly recommended that an appropriate antifreeze solu-tion with suitable corrosion inhibitor be used in the chilled fluid circuit. Unit performance data based on inhibited eth-ylene glycol solution must be corrected as shown in the fol-lowing example (other antifreeze solutions may be suitable based on specific application requirements).

NOTE: For performance correction factors for systems us-ing propylene glycol solution, see Propylene Glycol Perfor-mance Correction Factors and Solution Crystallization Points Graph on page 19.

EXAMPLE — ENGLISH (60 Hz) I. Determine concentration of inhibited ethyl-ene glycol (EG) solution required to protect the system to 0° F (at zero flow).

From Solution Crystallization Point correction curve on page 19: 35% EG concentration is required for solution crystallization at 0° F.

Consider the 30HWB040 unit selected in the Selec-tion Procedure section on page 20.

II. Correct unit capacity.

On Capacity Correction curve on page 19, read

0.99 correction factor at 35% concentration.

Corrected Capacity = 0.99 x Rated Capacity

= 0.99 x 35.9 = 35.5 Tons

Application data (cont)

III. Correct cooler water flow rate (Gpm).

On Cooler Flow Correction curve on this page, read

1.11 correction factor at 35% concentration.

IV. Correct cooler pressure drop.

On Cooler Pressure Drop Correction curve on this page, read 1.30 correction factor at 35% concentration.

On Cooler Pressure Drop curve, (page 22) for

94.7 gpm of water, Pressure Drop =7.0 ft of water.

EXAMPLE — SI (50 Hz) I. Determine concentration of inhibited ethyl-ene glycol (EG) solution required to protect the system to –17.8 C (at zero flow).

From Solution Crystallization Point correction curve at left: 35% EG concentration is required for solu-tion crystallization at –17.8 C.

Consider the 30HWB040 unit selected in the Selec-tion Procedure example.

II. Correct unit capacity.

On Capacity Correction curve on this page, read

0.99 correction factor at 35% concentration.

III. Correct cooler water flow rate (L/s).

On Cooler Flow Correction curve on this page, read

1.11 correction factor at 35% concentration.

IV. Correct cooler pressure drop.

On Cooler Pressure Drop Correction curve on this page, read 1.30 correction factor at 35% concentration.

On Cooler Pressure Drop curve (page 22), for

5.5 L/s of water, Pressure Drop = 20.0 kPa.

Cooler Water Flow (at corrected capacity) =

Tons x 24

35.5 x 24 ∆T 10

= 85.3 Gpm Cooler Water Flow (35% EG) = 1.11 x 85.3 = 94.7 Gpm

For 35% EG solution, Pressure Drop = 1.30 x 7.0

= 9.1 ft of water

Corrected Capacity = 0.99 x Rated Capacity = 0.99 x 112.1 = 111.0 kW

Cooler Water Flow (at corrected capacity) = kW x .239 ∆T

111.0 x .239

5.6 = 4.7 L/s

Cooler Water Flow (35% EG) = 1.11 x 4.7 = 5.26 L/s

For 35% EG solution, Pressure Drop = 1.30 x 20.0

= 26.0 kPa

ETHYLENE GLYCOL PERFORMANCE

CORRECTION FACTORS AND SOLUTION

CRYSTALLIZATION POINTS

Correction factors apply to published chilled water performance ratings from 40 to 60 F (4.4 to 15.6 C) LCWT.

PROPYLENE GLYCOL PERFORMANCE

CORRECTION FACTORS AND SOLUTION

CRYSTALLIZATION POINTS

Correction factors apply to published chilled water performance ratings from 40 to 60 F (4.4 to 15.6 C) LCWT.

ENGLISH (60 Hz) NOTE: Contact a local Carrier representative for a computer selection (based on the Reciprocating Chiller Selection program of Carrier’s electronic catalog), or follow the procedure below.

I. Determine unit size and operating conditions required to meet given capacity at given conditions.

Given:

Capacity. . . . . . . . . . . . . . . . . . . . . . . . . 35 Tons Leaving Chilled Water Temp (LCWT) . . . . . . .44 F Cooler Water Temp Rise . . . . . . . . . . . . . . . 10° F Condenser Entering Water Temp . . . . . . . . . .85 F Condenser Water Temp Rise . . . . . . . . . . . . 10° F Fouling Factor (Cooler) . . 0.00010 ft2 • hr • F/Btu Fouling Factor (Condenser) . . 0.00025 ft2 • hr • F/Btu NOTE: For other than 10° F temperature rise, data corrections must be made; also, on some units a change of controls is necessary.

II. Choose appropriate condenser based on con-denser water conditions and specific job requirements.

FOR 30HWB,C, or HK Fluid-Cooled Condenser:

Enter the appropriate Performance Data table at 44 F LCWT and 85 F Condenser Entering Water Temperature. Read down the capacity column to a capacity that equals or exceeds the given capacity.

Read across to obtain the operating conditions required to obtain the listed capacity. Use cooler and condenser pressure drop curves to determine the respective pressure drops. Final unit selection should be based on present and future job require-ments and the economics of the job.

NOTE: For 30HWS, contact a local Carrier representative.

FOR 30HWA and 30HL Condenserless:

Use same method. For remote condenser data, refer to appropriate Carrier condenser Product Data literature.

Contact a local Carrier representative for a com-puter selection of chiller system combinations with Carrier air-cooled condensers other than those shown in Performance Data tables.

III. From Cooling Capacities table on page 26 and pressure drop curves on page 22, deter-mine operating data for selected unit.

Unit . . . . . . . . . . . . . . . . . . . . . . . . . 30HWB040 Capacity. . . . . . . . . . . . . . . . . . . . . . . . 35.9 tons Compressor Motor Power Input . . . . . . . .35.2 kW Cooler Water Flow . . . . . . . . . . . . . . . . 86.1 gpm Cooler Pressure Drop . . . . . . . . . . .6.5 ft of water Condenser Water Flow . . . . . . . . . . . . 108.7 gpm Condenser Pressure Drop . . . . . . . .8.8 ft of water

SI (50 Hz) NOTE: Contact a local Carrier representative for a computer selection (based on the Reciprocating Chiller Selection program of Carrier’s electronic catalog), or follow the procedure below.

I. Determine unit size and operating conditions required to meet given capacity at given conditions.

Given:

Capacity. . . . . . . . . . . . . . . . . . . . . . . . . 125 kW Leaving Chilled Water Temp (LCWT) . . . . . . . 7 C Cooler Water Temp Rise . . . .