Carrier 30HL050, 30HW018-040, 30HK040-060 specifications Factory-Installed Unit Wheels

Page 13

THUMB-SCREW

BRAKE

Fig. 11 Ð Factory-Installed Unit Wheels (4)

Fig. 12 Ð Compressor Mounting

Step 5 Ð Make Piping Connections Ð See Fig. 13 and 14 for typical piping applications.

30HK, HWC, HWS CONDENSER DESCRIPTION Ð All 30HWC and HWS units use a shell-and-tube condenser with removable heads for easy tube servicing. Refrigerant is con- tained within the shell, and water ¯ows through the tubes. The 30HK and HWC units use a steel shell condenser(s) with steel tube sheets and copper tubes. The 30HWS units are designed for sea coast applications and use a steel shell con- denser with cupronickel tube sheets and tubes. In addition, the 30HWS water heads utilize ``sacri®cial'' zinc anodes for condenser corrosion protection.

IMPORTANT: Inspect the zinc anodes every 3 months for deterioration and replace as needed. Galvanic pro- tection of the condenser is lost if the anodes are not replaced prior to complete deterioration.

The number of tubes in the condenser(s) varies depending on the unit size. The condensers have internal subcoolers which provide approximately 8 F (4.4 C) for 30HK, HL units or 13 F (7.2 C) for 30HW units subcooling at ARI (Air Condition- ing and Refrigeration Institute, U.S.A.) rating conditions.

30HL, HWA SYSTEM CONDENSER Ð For detailed con- denser piping installation instructions for 30HL and HWA systems, refer to separate instructions packaged with the re- mote condenser unit(s).

Condenser refrigerant piping for 30HL and HWA units should be sized to minimize the amount of refrigerant required.

The 30HL and HWA units that use an air-cooled evapo- rative condenser(s) must have adequate means for head pres- sure control when operating below 60 F (15.6 C).

Carrier recommends that a ®eld-supplied pressure relief device be installed after the muffler in each discharge line. Most local codes require the relief valve to be vented di- rectly to the outdoors. The vent must not be smaller than the relief valve outlet.

30HWB CONDENSER DESCRIPTION Ð All 30HWB units use a brazed-plate heat-exchanger-type condenser. These heat exchangers are made of embossed plates of acid-resistant stain- less steel. Every other plate is reversed so that the ridges of the herringbone pattern intersect one another on adjacent plates, forming a lattice of contact points. These plates are vacuum- brazed together to form a compact and pressure-resistant heat exchanger.

After brazing, the impressions in the plates form 2 sepa- rate systems of channels where the refrigerant and water flows are counter-current. The number of plates varies depending on unit tonnage. The condensers provide approximately 14° to 18° F (8° to 10° C) liquid subcooling at the standard Air Conditioning and Refrigeration Institute (ARI) rating condition.

30HK, HWC, HWS CONDENSER(S) Ð When facing the front of the unit, the condenser(s) is in the uninsulated shell(s) located across the bottom of the unit. The water connections are such that the water inlet is located on the left-hand side (30HK) or right-hand side (30HW) of the unit. The water inlet must ALWAYS be on the bottom of the condenser(s) to provide the proper subcooling. The water outlet is located on the right-hand side (30HK) or left-hand side (30HW) of the unit. The water connections can be reversed by rotating the heads and gaskets 180 degrees ON BOTH ENDS OF THE CONDENSER(S).

IMPORTANT: THE WATER INLET MUST AL- WAYS BE ON THE CONDENSER HEAD(S) THAT HAS THE NOZZLE CONNECTION AT THE BOT- TOM OF THE HEAD. Incorrect inlet connection will result in poor system performance due to incorrect subcooling.

The LIQUID-IN and LIQUID-OUT labels indicate water connections AS SUPPLIED FROM THE FACTORY.

It is recommended that strainer with a minimum of 20 mesh be installed ahead of the condenser water inlet(s) to prevent debris from clogging or damaging the heat exchanger(s).

There is a pressure-relief device on the condenser(s) of all 30HK, HWC, and HWS units. Most local codes require that this relief be vented directly to the outdoors.

NOTE: The relief line must not be smaller than the relief valve outlet. Be sure to provide a way of draining and ser- vicing the unit.

13

Page 12 Page 14
Image 13
Page 12 Page 14
Contents Contents Installation, Start-Up Service InstructionsGeneral Safety ConsiderationsRig and Place Unit InstallationPlace the Unit 30HW UnitsLeft Side View TOP ViewUnit SAETOP View Front View Right Side View 30HL050,060 CondenserlessRear View Left Side View 30HWB 30HWB018-040 Fluid Cooled30HWC,S Left Side View Front ViewWeight Distribution AT Each Mounting HOLE, 50 HZ Units Weight Distribution AT Each Mounting HOLE, 60 HZ UnitsLocation of Mounting Holes 30HWA,B 30HWC,SHWC,S HWBCompressor CoolerRefrigerant Ð kg Ð Physical Data 30HL, HWA Condenserless Units Ð SI Ð Physical Data 30HL, HWA Condenserless Units Ð EnglishCondenser Connections Factory-Installed Unit Wheels Typical Piping with Fluid-Cooled 30HWB Unit Shown Page Cooler Description Installed Coupling Fastening Grooved Pipe EndsUnit Size Cooler Condenser Minimum Cooler Loop VOLUME² Minimum Cooler and Condenser Flow Rates Minimum Loop VolumeCooler Pressure Drop Ð 30HW Units Cooler Pressure Drop Ð 30HK, HL UnitsCondenser Pressure Drop Ð Page Unit Size Ð Electrical Data Ð 30HK, HWB, HWC, HWS Fluid-Cooled UnitsICF LRA MTAÐ Electrical Data Ð 30HL and HWA Condenserless Units CWP Field Accessory WiringDLS GCSEquip COMGND TORHGS PRISEC HPSInitial Check PRE-START-UPElectric Shock Hazard NeutCheck Refrigerant Charge Deadband SettingTypical Deadband Requirements Operating Limitations START-UP and OperationCheck Refrigerant Feed Components To ADD OILCompressor and Unit Protective Devices Pressure Relief Valve SettingsCheck Unit Safeties Crankcase HeaterFactory Settings, Low-Pressure Switch Fixed Factory Settings, High-Pressure Switch FixedCapacity Control and Operating Sequence Ð Unit OperationFREEZE-UP Protection Capacity Control Steps Ð 30HK, HL Standard Units Transfer Switch Compressor Unit Control No Position StepsCapacity Control Steps Ð 30HW Standard Units ServiceUnit Capacity Control Operating Steps CylindersThermistor Thermistor REPLACEMENT, 30HK, HL UnitsTemperature Resistance Ohms Ð Sensor Temperature F vs ResistanceÐ Sensor Temperature C vs Resistance Tightening Cooler Head Bolts Servicing Cooler 30HK,HL onlyPlugs and Tubes Components for Part Number PluggingChilled Fluid PROOF-OF-FLOW Switches Open TroubleshootingHead Bolt Tightening Sequence Symptoms Cause Remedy TroubleshootingCompressor Call for Free Catalog Service TrainingRemove and use for job le Preliminary Information START-UP Checklist for Chiller SystemsPreliminary Equipment Check YES or no Voltage Imbalance LOCATE, REPAIR, and Report ANY R-22 LeaksFluid Entering Cooler Unit Start-UpFluid Leaving Cooler Units Rated MIN. Pressure Drop =Book Catalog No Form 30H-10SI Pg CL-4 11-98

30HK040-060, 060, 30HL050, 30HW018-040 specifications

The Carrier 30HW018-040, 30HL050, 060, and 30HK040-060 series represents a range of advanced rooftop units designed to meet the diverse heating and cooling needs of commercial buildings. Renowned for their efficiency and performance, these units incorporate cutting-edge technologies to improve operational effectiveness and reduce energy consumption.

One of the standout features of the Carrier 30HW series is its high-efficiency scroll compressors, which are engineered to provide exceptional cooling capacity while minimizing energy usage. These compressors operate quietly and ensure smooth performance across varying loads. Additionally, the units utilize advanced microprocessor controls that enhance system efficiency by enabling precise temperature regulation and optimizing energy consumption based on real-time weather conditions.

Another important aspect of the 30HL series is its ability to provide reliable heating and cooling capabilities even in extreme weather conditions. With robust heat exchangers and a range of variable-speed fans, these units can efficiently circulate air while maintaining optimal indoor comfort levels. Variable-speed technology not only enhances comfort but also improves energy savings, as the system can adjust its output based on occupancy and external temperature fluctuations.

The 30HK series, specifically designed for high-performance applications, features enhanced filtration systems which improve indoor air quality. These systems are capable of accommodating various filter types, ensuring that airborne contaminants are effectively captured. This makes the 30HK a suitable choice for environments where air quality is a priority, such as schools, hospitals, and commercial offices.

Moreover, all units in the 30HW, 30HL, and 30HK series are designed with ease of maintenance in mind. Removable panels and easy access points allow for quick servicing and reduces downtime. The compact design also ensures that installation is straightforward, making them a preferred choice for many contractors.

In summary, Carrier's 30HW018-040, 30HL050, 060, and 30HK040-060 series are integral solutions in the HVAC market, combining energy efficiency, advanced controls, and superior air quality features. These rooftop units are tailored for commercial applications, providing reliable heating and cooling solutions while prioritizing comfort and sustainability. Through continuous innovation, Carrier remains at the forefront of HVAC technology, ensuring that their products meet the evolving demands of the industry.
Top Page Image Contents