Performance Requirements for Air-Cooled Condenser
|
|
- Charla Freeman
- 6 years ago
- Views:
Transcription
1 #120 ACRD Requirements for Selecting 3 rd Party Remote Air-Cooled Condenser and Flooded Receiver Abstract The InRow RD (ACRD600, ACRD601, ACRD602, ACRD600P, ACRD601P, ACRD602P) is an air-cooled DX air conditioner for data centers. All air-cooled air conditioners require the use of remote air-cooled condensers. This application note outlines the requirements for selecting third party remote condenser and flooded receiver for InRow RD air-cooled product. Introduction The InRow RD is an air-cooled DX air conditioner designed to be placed in-row, between IT equipment racks. The in-row design allows the InRow RD to draw in air from the rear, capturing heat from the IT equipment in the hot aisle, and neutralizing it before it mixes with the room air. Conditioned air is then discharged into the cold aisle, ready for immediate use by the equipment in the adjacent racks. An air-cooled condenser is required to reject the heat load as well as the power drawn by the compressor. The air-cooled condenser, installed outside, rejects the heat to outdoor ambient air. General requirements for Air-Cooled Condenser 1. Refrigerant: R410a, design pressure is 4.2MPa. Design temperature for air-cooled condenser is o C ( o F). 2. To be compatible with piping, the condenser connection size should be inlet 7/8 and outlet 5/8. Need one service port near pressure transducer for service usage. 3. Use a header cover above header and protect electrical (if no header cover, electrical part should meet IP54) 4. Condenser should provide power input for electrical heater for receiver which is 105W at 204Vac. Performance Requirements for Air-Cooled Condenser The selected air-cooled condenser must meet the thermal heat rejection (THR) requirement as stated below in Table 1. Schneider Electric generally offers remote air-cooled condensers for two outdoor ambient air temperatures in order to keep the refrigerant condensing pressures at a desired level: 35 o C (95 o F) and 46 o C (115 o F). The difference between outdoor ambient temperature and condensing temperature is called design condenser temperature difference. Table 1 Remote air-cooled condenser THR requirement By Dennis Feng Model Region Design Ambient Temp Power input THR MBH/1 F TD 1 _
2 ACCD C (95F) V 3ph 60HZ 5.7 MBH/1 F TD 3 kw/1 C TD ACCD C (115F) V 3ph 60HZ 7.8 MBH/1 F TD 4.1 kw/1 C TD NAM ACCD C (95F) V 3ph 60HZ 5.7 MBH/1 F TD 3 kw/1 C TD ACCD C (115F) V 3ph 60HZ 7.8 MBH/1 F TD 4.1 kw/1 C TD ACCD75232 GCN 35-46C (95-115F) 220V 1ph 50Hz 8.3 MBH/1 F TD 4.4 kw/1 C TD ACCD75232-C EMEA 35-46C (95-115F) 230V 1ph 50Hz 8.3 MBH/1 F TD 4.4 kw/1 C TD ACCD75233-C 35-46C (95-115F) 230V 1ph 60Hz 8.3 MBH/1 F TD 4.4 kw/1 C TD Elevation above sea level is a factor that negatively affects air-cooled condenser performance. The density of the air is reduced with higher elevation from sea level, the lower air density means lower air mass flow rate drawn by condenser fans. The negative effect of elevation from sea level must be taken into consideration during the condenser selections for the InRow RD units. Remote air-cooled condenser selection procedure may change from vendor to vendor, but size and capacity of the condenser increases with the higher elevation from sea level. If the altitude is 4,000 ft (1,200 m), the altitude correction factor is 1.10 and the corrected design THR is calculated by 4.4 kw/ o C (8.3MBH/ o F) multiplied by 1.10 or 4.8 kw/ o C (9.1 MBH/ o F). Table 2 Altitude correction factor Altitude ft (m) Correction factor ,000 (300) ,000 (600) ,000 (900) ,000 (1,200) ,000 (1,500) ,000 (1,800) ,000 (2,100) 1.17 For example; if the summer outdoor air design temperature of a region is 95 o F (35 o C), and the altitude is 4,000 ft (1,200 m), the design condenser temperature is 122 o F (50 o C), so design temperature difference is calculated by subtracting 95 o F (35 o C) from 122 o F (50 o C) or 27 o F (15 o C). The selected condenser must have the minimum capacity of corrected design THR which is InRow RD THR multiplied by altitude correction factor 3kW/ o C * 15 o C * 1.1 or 50 kw (170,720 Btu/hr) at 27 o F (15 o C) design condenser temperature difference. 2
3 Flooded Receiver Requirement for Low Ambient Protection Table 3 General requirements receiver Part Number Region Requirement ACAC75013 GCN GB - NB/T ACAC75014 NAM ACAC75015 EMEA PED 97/23/EC ASME ASME Boiler and Pressure Vessel Code VIII Division 1 Working principle The remote air-cooled condensers selected for InRow units must be equipped with flooded receiver assembly for head pressure control at low outdoor ambient air temperatures, because the InRow RD unit has a variable speed compressor that changes unit capacity according to compressor speed. The condensing temperature in the InRow RD unit must be kept not too low. Since the pressure differential across the expansion valve port affects the rate of refrigerant flow, low head pressure generally causes low refrigerant flow then results in low opening of expansion valve. Electrical expansion valve used on InRow RD unit working at low opening causes operation unstable if the environment various, it may cause liquid refrigerant entering the compressor. The heat rejection from hot gas refrigerant to outdoor ambient air in the remote air-cooled condenser occurs via forced or natural convection. When the condenser fans are running, they will draw air through condenser coil and convection heat transfer occurs. Without any air flow, there still is natural convection heat transfer which may be enough to drive the condensing temperature below critical point at low outdoor ambient temperature s. An air conditioner unit design that can regulate refrigerant mass flow rate and cooling capacities like InRow RD units do, need a flooded receiver assembly at higher outdoor ambient air temperature than expected. A flooded receiver assembly is required for InRow RD units at outdoor air temperatures of 40 o F (4 o C) and below. A viable method used to reduce and regulate condensing temperature at low outdoor ambient air temperature is flooding the condenser internal volume with liquid refrigerant. This method requires additional refrigerant R410a charge as shown below. A receiver assembly, which contains a relief valve, receiver, and head pressure control valve, is required to control the additional refrigerant during warmer ambient air temperatures. The idea of flooding the condenser internal tube volume with liquid refrigerant to reduce its capacity comes from a basic heat transfer fact: the heat transfer coefficient of a single phase (liquid) fluid is much lower than heat transfer coefficient of a two phase (gas and liquid) fluid. Additional flooded charge and flooded receiver selection The charge table in the InRow RD operation manual shows the refrigerant charges needed to fill the liquid line between the condenser and InRow RD unit, the unit s standard charge, and additional flooded charge for the condensers. 3
4 Standard charges for the 3 rd party condensers can be obtained from the specific vendor technical bulletins. To calculate the additional flooded charge, one should first obtain the condenser inner tube volume. The 100% flooded charge of the condenser then can be calculated by multiplying the condenser inner volume ft 3 (m 3 ) with 60.9 lb/ft 3 (975 kg/m 3 ) density of liquid R410a at 105 o F (40.6 o C) and 400 psig (27.5 bar). Finally, the additional flooded charge is calculated by multiplying the 100% flooded charge of the condenser with outdoor ambient coefficients that can be seen below. Table 4 Flooded refrigerant charge outdoor air temperature coefficient Design winter outdoor air temperature [ o F ( o C)] Flooded charge outdoor air temperature coefficient 40 (4) 20 (-7) 0 (-18) Caution!!!: The size of the flooded receiver must be capable of holding the entire flooded refrigerant charge or damage may occur to the refrigeration system or compressor. The flooded receiver assembly must contain a receiver, head pressure control valve, pressure relief valve, and flexible heater. A drawing of one of the flooded receiver assembly designed by Schneider Electric can be seen below. The receiver should have three sight glasses at one quarter, one half and three quarters of receiver diameter for horizontally installed receivers to observe the refrigerant liquid level. External surfaces of the receiver should also be insulated. 105 W flexible rubber heater with thermostat built in should be wrapped around receiver before insulating the receiver. The 68 o F (20 o C) thermostat built in the heater will open when it senses temperature is lower than 68 o F (20 o C). Flooded receiver assembly without a heater may cause compressor starting problems. Without a heated receiver, all refrigerant will migrate to receiver since it is the coldest portion of the system. Figure 2 shows the way of designing flooded receiver assembly. The pressure relief valve should have a pressure relief rating of 609 psig (42 bars). Head pressure control valve selection The head pressure control valve with 295 psig (20.3 bar) set point or above will sense the drop in refrigerant discharge pressure and restrict condenser liquid outlet. This will result in flooding the condenser with liquid refrigerant. The Sporlan valve is used in SE designed flooded receiver assemblies; however, there are other options: combination of ORD (open on rise of differential pressure) and ORI (open on rise of inlet pressure) valves can also be used. Take LAC as an example: Selection guidance is sy stem capacity in table 3 at minimum design temperature and pressure drop across v alv e no more than 5 psi. Select a LAC v alv e f or a 10 ton (35 kw), R-410A unit with a minimum design ambient temperature of -20 F (-28 C). The LAC-10 has a capacity of 12.8 tons (47.3 kw) at a 5 psi (0.35 bar) drop across the v alv e according to the Low Ambient Capacity table below. The LAC-10 also has a capacity of 11.4 tons (49.6 kw) at a 2 psi (0.21 bar) drop across the v alv e according to the High Ambient Capacity table below. The LAC -10 is the correct selection. There should be a check valve at the liquid inlet. The flooded receiver assembly should be installed below the condenser coil level so that refrigerant can drain into the flooded receiver during compressor off cycle. 4
5 Table 5 Head pressure control valve selection Variable Fan Speed and Proportional Fan Speed Control The condensers offered by Schneider Electric are equipped with variable fan speed control. An air-cooled condenser selected for an InRow RD unit must have variable fan speed control, because cooling capacity and thermal heat rejection of an InRow RD unit changes with the load in a data center, a condenser without variable fan speed control will result in unstable condensing pressure. The variable fan speed controller is built in the condenser; set pressure of 276psig (19 bar), throttling range of 73psi (5 bar), and other functions are programmed into the fan speed controller. A pressure transducer is installed to measure refrigerant discharge pressure. There is no low voltage signal wiring between the InRow RD unit and the remote air-cooled condenser. The fan speed controller will start to increase fan speed from minimum fan speed when the discharge pressure reaches 276psig (19 bar), the fans will run at maximum fan speed when discharge pressure reaches 348psig (24 bar). The 3 rd party remote air- cooled condenser must have a pressure transducer and a fan speed controller, and fan speed control method should follow figure 1. This will provide condenser fans to operate on refrigerant discharge pressure rise without signal wires between InRow RD and the remote air-cooled condenser. Figure 1 Condenser fan speed control method 5
6 Caution!!! The 3 rd party condenser and flooded receiver assembly must comply with local codes and standards. The 3 rd party condenser must be capable of starting the condenser fans on discharge pressure rise, since InRow RD unit does not support interconnect wiring between the unit and the condenser. Figure 2 Piping schematic, head pressure control with single valve 1. Compressor 2. Valve, head pressure control valve 3. Condenser 6
7 4. Flexible Heater with Built in Thermostat 5. Pressure Relief Valve 6. Check Valve 7. Receiver with Sigh Glasses About the Author: Dennis Feng is a Cooling System Engineer in the IT Division at Schneider Electric. He received a Bachelor degree in Thermal Energy and Power Engineering from Soochow University in Suzhou, China and a Masters in Refrigeration and Cryogenic Engineering from University of Shanghai for Science and Technology in Shanghai, China. 7
Guide Specifications for InRow Direct Expansion
Guide Specifications Guide Specifications for InRow Direct Expansion THIS GUIDE SPECIFICATION IS WRITTEN IN ACCORDANCE WITH THE CONSTRUCTION SPECIFICATIONS INSTITUTE (CSI) MASTERFORMAT. THIS SECTION MUST
More informationAir-Cooled Condensers
CH-RACCTB APR 2015 Replaces CH-RACCTB April 2011 Air-Cooled Condensers Technical Guide Models WSS Table of Contents Features & Options...2 Condenser Selection... 3-4 Performance Data...5 Dimensional Data...5
More informationKCS-Line Air Cooled Condensers
PRODUCT DATA & INSTALLATION Bulletin K50-KCS-PDI-5 Part # 1085695 PRODUCT SUPPORT web: k-rp.com/kcs email: acc-fc@k-rp.com call: 1-844-893-3222 x526 scan: KCS-Line Air Cooled Condensers R407A R407C R448A
More informationSMALL AIR COOLED CONDENSERS
Catalog KM-KDX-0816A Supersedes Catalog KM-KDS-1014A UNICON SMALL AIR COOLED CONDENSERS 2 Unicon Efficient and Reliable Kramer s Remote Air Cooled Condensers innovative design provides a wide array of
More informationTechnical Specifications
Technical Specifications InRow Direct Expansion Air Conditioners Air-Cooled/Fluid-Cooled Up to 37kW Schneider Electric IT Corporation Legal Disclaimer The information presented in this manual is not warranted
More informationAPC APPLICATION NOTE #109
#109 Application Guidelines for the InfraStruXure InRow SC Condenser By David Roden Abstract The InfraStruXure InRow SC (ACSC100 and ACSC101) is a self-contained air conditioner for server rooms and wiring
More informationTranscritical CO2 Bottle Cooler Development
Transcritical CO2 Bottle Cooler Development C. Rohrer Ingersoll Rand Climate Control, 12999 St. Charles Rock Rd. Bridgeton, MO, United States 314 298-4765, clay_rohrer@irco.com ABSTRACT This paper contains
More informationLevitor II. AIR-COOLED CONDENSER WITH ELECTRONICALLY COMMUTATED AXITOP MOTORS (Available for Fluid Cooler Applications)
Levitor II AIR-COOLED CONDENSER WITH ELECTRONICALLY COMMUTATED AXITOP MOTORS (Available for Fluid Cooler Applications) Technical Bulletin: LEVE_002_103116 Products that provide lasting solutions. Table
More informationHeat Reclaim. Benefits,Methods, & Troubleshooting By Dave Demma, Manager Supermarket Sales, Sporlan Division - Parker Hannifin Corporation
Form 30-217 / January 2007 Heat Reclaim Benefits,Methods, & Troubleshooting By Dave Demma, Manager Supermarket Sales, Sporlan Division - Parker Hannifin Corporation While the vapor-compression cycle has
More informationAir-Cooled Condensers
BN-RACCTB Sept. 2016 Replaces BN-RACCTB April 2015 Air-Cooled Condensers Technical Guide Models DVT Table of Contents Features & Options...2 Condenser Selection... 3-4 Performance Data...5 Dimensional
More informationAir-Cooled/Fluid-Cooled 50/60 Hz ACRD100, ACRD101, ACRD200, ACRD201 ACRD500, ACRD501, ACRD502. Technical Data
Air-Cooled/Fluid-Cooled 50/60 Hz ACRD100, ACRD101, ACRD200, ACRD201 ACRD500, ACRD501, ACRD502 Technical Data American Power Conversion Legal Disclaimer The information presented in this manual is not warranted
More informationInRow Direct Expansion
InRow Direct Expansion Close-coupled, air, water, and glycol cooling for closets, server rooms, and data centers Up to kw > Row-Based Cooling InRow SC, 00mm InRow RD, 00mm The InRow Direct Expansion product
More informationFALCON Rooftop Units ACPSE 50/60Hz Cooling Capacity : 36 to 1388 MBH (11 to 407 kw) Heating Capacity : 40 to 1298 MBH (12 to 380 kw)
FALCON Rooftop Units ACPSE 50/60Hz Cooling : 36 to 1388 MBH (11 to 407 ) Heating : 40 to 1298 MBH (12 to 380 ) R Products that perform...by people who care NOMENCLATURE 6 AC P S E 435 P - HP G Q 6-60 Hz
More informationMicrochannel REMOTE AIR COOLED CONDENSER. Technical Bulletin: MXCC_004_ Products that provide lasting solutions.
Microchannel REMOTE AIR COOLED CONDENSER Technical Bulletin: MXCC_004_030817 Products that provide lasting solutions. Krack s new Microchannel Remote Air Cooled Condenser incorporates a new patented modular
More informationJune 2001 / BULLETIN Way Valves. The right solenoid valve for any job.
June 01 / BULLETIN - 3-Way Valves The right solenoid valve for any job. Page 2 / Bulletin - Advantages Sporlan 3-Way Valves 3-Way Pilot eliminates costly high- to low-side leaks. "B" reduces total installed
More informationProduct Data. Features/Benefits. 07DA, DB 07EA, EB, ED Condensing Units. 06D, 06E Compressors. 3 to 40 Nominal Tons
Product Data 07DA, DB 07EA, EB, ED Condensing Units 3 to 40 Nominal Tons 06D, 06E Compressors An excellent choice for your built-up system Carrier 07 Series condensing units built for the engineer who
More informationMicrochannel REMOTE AIR COOLED CONDENSER WITH ELECTRONICALLY COMMUTATED AXITOP MOTORS. Technical Bulletin. Products that provide lasting solutions.
Microchannel REMOTE AIR COOLED CONDENSER WITH ELECTRONICALLY COMMUTATED AXITOP MOTORS Technical Bulletin Products that provide lasting solutions. Krack Corporation has a long tradition of leadership and
More informationBN-ACCMX MAR 2016 Replaces BN-TB-ACCMX MAR Air-Cooled Condenser. with Microchannel Coil Technology Models NRG NRJ
BN-ACCMX MAR 2016 Replaces BN-TB-ACCMX MAR 2015 Air-Cooled Condenser with Microchannel Coil Technology Models NRG NRJ Table of Contents Nomenclature... 2 Features & Benefits... 3 Capacity and Specifications...
More informationApplication and Installation Bulletin for Master-Bilt Refrigeration Superheat Controller Kit Assembly(A ), 120/208/240/1/60, R404A, LT/MT APPS
Application and Installation Bulletin for Master-Bilt Refrigeration Superheat Controller Kit Assembly(A900-22007), 120/208/240/1/60, R404A, LT/MT APPS Introduction The superheat controller is designed
More information12 In Row. Installation Manual. MISSION CRITICAL Air Conditioning Systems. ClimateWorx International Inc.
MISSION CRITICAL Air Conditioning Systems 12 In Row Installation Manual ClimateWorx International Inc. 14 Chelsea Lane, Brampton, Ontario, Canada L6T 3Y4 2 Table of Contents Table of Contents... 3 Site
More informationPS SERIES PARALLEL RACK SYSTEM GLYCOL CHILLER START UP GUIDE. Master Rack Compressor Sequencer 7/21/2017
PS SERIES PARALLEL RACK SYSTEM GLYCOL CHILLER START UP GUIDE Master Rack Compressor Sequencer 7/21/2017 1 2 Contents INTRODUCTION... 4 WARNING LABELS AND SAFETY INSTRUCTIONS... 5 PARALLEL RACK NOMENCLATURE...
More informationInstallation, Operation, and Maintenance Information
Installation, Operation, and Maintenance Information Air Cooled Condensers 8-2016 Rev 0 Table of Contents General Safety Information 2 Inspection 2 Installation 2 6 Rigging and Assembly 2 Unit Location
More informationGeneral information on refrigerant controllers
General information on refrigerant controllers Condensing pressure controller The condensing or condenser pressure controller is a back pressure controller and its task is to maintain the condensing pressure
More informationEnergy Use in Refrigeration Systems
2012 Rocky Mountain ASHRAE Technical Conference Energy Use in Refrigeration Systems PRESENTED BY: Scott Martin, PE, LEED AP BD+C Objectives Understand mechanical refrigeration terms Describe how heat is
More informationDOLPHIN FRESH WATER SHELL AND TUBE EVAPORATOR
DOLPHIN FRESH WATER SHELL AND TUBE EVAPORATOR INTRODUCTION Dolphin offers Shell & Tube Evaporators. These components utilize the latest technology tubing available. FRESH WATER DX SHELL & TUBE EVAPORATORS
More informationFan speed controller Type Saginomiya XGE
Data sheet Fan speed controller Type Saginomiya Fan speed controller stabilizes condensing pressure by changing condenser s fan speed. The controller reduces fan noise and saves energy in low ambient conditions.
More informationC13-Series Engineering Guide
Engineering Guide Effective January 2018 Horizontal Air-Cooled, Water-Cooled, Chilled Water and Heat Pump Contents Product Features............................... 3 Product Options................................
More informationRemote Air Cooled Condensers C2 Series
Remote Air Cooled Condensers C2 Series High Fan Speed Capacity 236kW Low Fan Speed Capacity 1740kW 180kW 1257kW Innovative Heat Transfer Solutions Issue date 04/14 APPLICATION BENEFITS / FEATURES HIGH
More informationThomas J Kelly. Fundamentals of Refrigeration. Sr. Engineering Instructor Carrier Corporation. August 20, Page number: 1.
Thomas J Kelly Sr. Engineering Instructor Carrier Corporation August 20, 2003 1 SESSION OBJECTIVES At the conclusion of this session you should be able to: 1. Describe the basics principles of refrigeration
More informationHigh Ambient / High Efficiency Series. R - 410a. 50Hz. Ducted Split Air Conditioners (5.0 kw kw)
High Ambient / High Efficiency Series R - 410a 50Hz Ducted Split Air Conditioners (5.0 kw - 17.5 kw) ISO 9001 : 2008 ISO 14001 : 2004 ISO 18001 : 2007 R - 410a 50Hz Introduction: Established in the year
More informationSpaceKeeper Console (SKC)
SpaceKeeper Console (SKC) With finished cabinet or custom enclosure SKC 008-015 ¾ - 1¼ tons 12 W x 25¼ H x 48 L CGC-09 SpaceKeeper Console R410A MODEL NO. SKC _ 008 010 012 015 Net Cooling Capacity - Rated
More informationConcealed Ducted Split Series R-407C MBH
Concealed Ducted Split Series R-407C 4-60 MBH Ducted Split with Hermetic Compressor Tropical 50 Hz For more technical information please visit Table of Contents INTRODUCTION NOMENCLATURE UNIT RATING SUMMARY
More informationISERIES VERTICAL AHU ENGINEERING SPECIFICATIONS
ISERIES VERTICAL AHU ENGINEERING SPECIFICATIONS BULLETIN 20-131.001 Page 1 Copyright 2017 Unico Inc. TABLE OF CONTENTS APPLICATIONS... 3 CABINET CONSTRUCTION... 3 FEATURES AND CONTROLS... 3 DIMENSIONAL
More informationCompressors, Chillers & Condensers
Totaline s water-cooled condensers are designed for a wide range of applications and are available in many models ranging from 5 to 400 nominal tons. Small and large condensers are available for fresh
More informationAir-Cooled Condensers
Catalog Cat 622-2 Air-Cooled Condensers Model ACH 014-225 Model ACX 014-225 Model ACL 014-225 Capacities from 130 MBH to 2225 MBH R-134a, R-407c, R-410A Table of Contents Introduction...3 Model Description...4
More informationTECHNICAL GUIDE DESCRIPTION SPLIT-SYSTEM AIR-COOLED CONDENSING UNITS. HA300, HB360, HB480 & HB thru 50 NOMINAL TONS (50 Hz)
DESCRIPTION These units are completely assembled, piped and wired at the factory to provide one-piece shipment and rigging. Each unit is pressurized with a holding charge of refrigerant-22 for storage
More informationSeries 6, Vertical Floor-Mount Units
MISSION CRITICAL Air Conditioning Systems Series 6, Vertical Floor-Mount Units Installation Manual ClimateWorx International Inc. 14 Chelsea Lane, Brampton, Ontario, Canada L6T 3Y4 2 Table of Contents
More informationSplit inverter air-to-water heat pump CERTIFIED BY CERTITA. option 30/35-40/45
Plug & Heat heat pump Quick and easy to install For new homes or boiler backup operation 50 HFC R410A CERTIFIED BY CERTITA Heating capacity: 5.5 to 22 kw option CERTIFIED BY CERTITA 30/35-40/45 USE The
More informationFloating Head Pressure Control System
Supplement to Condensing Unit Installation and Maintenance Manual Bulletin K40-LIMITROL-AG-2 Part # 1101113 PRODUCT SUPPORT web: k-rp.com/limitrol email: smcu@k-rp.com call: 1-844-893-3222 x521 scan: Floating
More informationVERTICAL AHU ENGINEERING SPECIFICATIONS BULLETIN
VERTICAL AHU ENGINEERING SPECIFICATIONS BULLETIN 20-019 TABLE OF CONTENTS DESIGN & SPECIFICATIONS...3 APPLICATIONS... 3 CABINET CONSTRUCTION... 3 FEATURES AND CONTROLS... 3 DIMENSIONAL DATA... 5 SPECIFICATIONS...
More informationCommercial High-Efficiency Condensing Units
FORM NO. A22-193 REV. 3 Supersedes Form No. A22-193 Rev. 2 Commercial High-Efficiency Condensing Units 15 & 20 TON MODEL [52.8 & 70.3 kw] 10 & 12.5 TON MODEL [35.2 & 44.0 kw] 10 THROUGH 20 NOMINAL TON
More informationCommercial High-Efficiency Condensing Units
FORM NO. A22-194 REV. 2 Supersedes Form No. A22-194 Rev. 1 Commercial High-Efficiency Condensing Units RAWL High Efficiency 6.5 & 7.5 TON MODEL [22.86 & 26.38 kw] TABLE OF CONTENTS Model Number Designation...2
More informationJCseries EVAPORATIVE CONDENSER. engineering data
JCseries EVAPORATIVE CONDENSER engineering data Recold JC Series Evaporative Condenser Contents 2 Construction... 3 Schematic... 4 Engineering Data... 5 Selection Procedure... 6-9 Multi-Circuited Selection
More informationGuide Specifications PART 1 GENERAL 1.01 SUMMARY
Guide Specifications PART 1 GENERAL 1.01 SUMMARY A The environmental control system shall be designed specifically for precision temperature control applications. It will automatically monitor and control
More informationENGINEERING SPECIFICATIONS
ENGINEERING SPECIFICATIONS RH-24-HAC-P-1L-C-SDE*F Horizontal Single Stage R410a Model Size 24 Reversing (Heating AND Cooling) 208/230-1-60VAC Liquid to Air Geothermal Heat Pumps Maritime Geothermal Ltd.
More informationENGINEERING SPECIFICATIONS
ENGINEERING SPECIFICATIONS RH-12-HAC-P-1L-C-SDE*F Horizontal Single Stage R410a Model Size 12 Reversing (Heating AND Cooling) 208/230-1-60VAC Liquid to Air Geothermal Heat Pumps Maritime Geothermal Ltd.
More informationAPC APPLICATION NOTE #119
#119 InRow RP-CW and InRow RP-DX Environmental Control By Henry Jespersen Abstract The primary function of the InRow RP product is to cool air from the hot aisle and deliver it to the cold aisle at the
More informationEXTROL EXPANSION TANKS
EXTROL EXPANSION TANKS For Closed Hydronic Heating & Chilled Water Systems MADE IN USA SINCE 954 AMTROL Quality Expansion Tanks Table of Contents AMTROL Quality Expansion Tanks... 2 How It Works... 2 The
More informationTEST REPORT #14. System Drop-In Test of Refrigerant Blend ARM-42a in an Air-Cooled Screw Chiller
Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #14 System Drop-In Test of Refrigerant Blend ARM-42a in an Air-Cooled
More informationMulti Inverter Air Conditioning Condensing Units - Summary
Multi Inverter Air Conditioning Condensing Units - Summary Model Description Nominal Max of Cooling Inverter No. Heating of (kw) Fan Condensing (kw) Coils Unit ECO18MS2 Twin Multi Inverter 5kW 5.2 6.1
More informationDAVE DEMMA ACHIEVING HEAD PRESSURE CONTROL
BY DAVE DEMMA ACHIEVING HEAD PRESSURE CONTROL In the September/October 2005 issue of HPAC Magazine, the case was made for reducing head pressure to increase compressor efficiency, thereby lowering its
More informationThermal Fluid Heaters
Thermal Fluid Heaters Vertical Coil, Vertical Tubeless, Electric and Horizontal Sizes from 75,000 to 40,000,000 BTU/HR The heat transfer innovators. THERMAL FLUID FEATURES AND BENEFITS KEY FEATURES No
More informationChapter-8 Capacity Control of Refrigeration Systems
Chapter-8 Capacity Control of Refrigeration Systems Chapter-8 Capacity Control of Refrigeration Systems ၈.၁ Compressor Control Chiller Control and Chilled Water Plant Control Refrigeration system control
More informationDUCTED SPLIT AIR CONDITIONERS GCUN-A/GDS-A SERIES
DUCTED SPLIT AIR CONDITIONERS GCUN-A/GDS-A SERIES Range 3.6 To 36.5 Tons 50Hz R22 TABLE OF CONTENT General features Page 3 Components features Pages 3 to 5 Compressors Condensers Condenser fans Evaporators
More informationLiebert Air-Cooled Fin/Tube Condensers
Liebert Air-Cooled Fin/Tube Condensers 50 Hz and 60 Hz Technical Design Manual Technical Support Site If you encounter any installation or operational issues with your product, check the pertinent section
More informationCOLD STORAGE WAREHOUSE, USING DIRECT EXPANSION AMMONIA REFRIGERANT Ray Clarke ISECO Consulting Services Pty Ltd
COLD STORAGE WAREHOUSE, USING DIRECT EXPANSION AMMONIA REFRIGERANT Ray Clarke ISECO Consulting Services Pty Ltd Abstract This paper presents the design approach adopted for the expansion of a large existing
More informationSECTION 5 COMMERCIAL REFRIGERATION UNIT 22 CONDENSERS UNIT OBJECTIVES UNIT OBJECTIVES 3/22/2012
SECTION 5 COMMERCIAL REFRIGERATION UNIT 22 CONDENSERS UNIT OBJECTIVES After studying this unit, the reader should be able to explain the purpose of the condenser in a refrigeration system. describe differences
More informationMidea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Technical Manual
Midea R410A Tropical ClimaCreator Series Rooftop Package 220V 3Ph 60Hz Technical Manual Midea reserves the right to discontinue, or change specification or designs at any time without notices and without
More informationLOW RECIRCULATION RATE EVAPORATORS
WHITE PAPER LOW RECIRCULATION RATE EVAPORATORS Written by: Jeff Welch President Welch Engineering Corporation Abstract Fin coil evaporators with enhanced internal tube surfaces allow for optimum performance
More informationAIM: TO STUDY THE PERFORMANCE OF THE DOMESTIC REFRIGERATION RIG.
AIM: TO STUDY THE PERFORMANCE OF THE DOMESTIC REFRIGERATION RIG. Page1 CONTENT: 1. Product Description 2. Product Specifications 3. Operating Procedure 4. Observation Table 5. Calculations 6. Result Page2
More informationBack to basics. Setting HEVs for Liquid Overfed Evaporators. 13 th Annual IRC R&T Forum May 8-9, 2013
Back to basics Setting HEVs for Liquid Overfed Evaporators 13 th Annual IRC R&T Forum May 8-9, 2013 Todd B. Jekel, Ph.D., P.E. Assistant Director, IRC Overview Valve characteristics Nomenclature Setting
More informationAir-Cooled Condensers
Catalog Cat 622-3 Air-Cooled Condensers Model ACH 014-225 Model ACX 014-225 Model ACL 014-225 Capacities from 130 MBH to 2225 MBH R-134a, R-407c, R-410A Table of Contents Introduction...3 Model Description...4
More informationCompact, Self-Contained unit that offer low installation cost plus dependable performance.
0 Compact, Self-Contained unit that offer low installation cost plus dependable performance. From carrier s excellence in engineering come a new, compact of single package horizontal and vertical water
More informationSeries 6, Vertical Floor-Mount Units
MISSION CRITICAL Air Conditioning Systems Series 6, Vertical Floor-Mount Units Installation Manual ClimateWorx International Inc. 14 Chelsea Lane, Brampton, Ontario, Canada L6T 3Y4 2 Table of Contents
More informationParilla Thermal Storage Project Case Study. May Page 1 of 11
Parilla Thermal Storage Project Case Study May 2014 Page 1 of 11 BACKGROUND Parilla Premium Potatoes is a large refrigerated storage facility (Figure 1) located in South Australia; the facility consists
More informationTest Report No.: Page 2 of 14
Test Report No.: 15039191 001 age 2 of 14 Test item particulars: Class of protection... : Degree of protection... : Class of temperature... : Testing: Class I IX0 Date of receipt of test item... : 2010.06.28
More informationTechnical Development Program
Technical Development Program COMMERCIAL HVAC CHILLER EQUIPMENT Water-Cooled Chillers PRESENTED BY: Omar Rojas Sales Engineer Menu Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7
More informationLiebert CSU3000 Chiller
CSI 15620 - Packaged Water Chillers Liebert CSU3000 Chiller Guide Specifications for 7.5-37 Ton CS/CD/CT Models 1.0 GENERAL 1.1 CS/CD MODELS The main-frame coolant supply unit shall be a Liebert Model,
More informationGTIP60 ISO GT Series, Inch Pounds - 60 Hz GT (iso) Spec Guide Drawings Spec Sheets Low Temp Heating P/T Charts
GTIP60 ISO GT Series, Inch Pounds 60 Hz GT010070 (iso) Spec Guide Drawings Spec Sheets Low Temp Heating P/T Charts Rev: 903 Rev 1 Revisions: 31103 Changed HZ dwg to field convertible 5902 changed Unit
More informationVertiCool Aurora Engineering Guide
Engineering Guide Effective August 2016 Air-Cooled, Water-Cooled and Water Source Heat Pump Contents Product Features... 3 Options... 4 Physical Data...5-6 Air-Cooled Performance Data (a) (b) (c)...7-8
More informationGUIDE SPECIFICATIONS. WW Series Water-to-Water Reverse Cycle Chillers & Low Temp Boilers. WW Reverse Cycle Chillers / Low Temperature Boilers
GUIDE SPECIFICATIONS WW Series Water-to-Water Reverse Cycle Chillers & Low Temp Boilers WW024-072 Reverse Cycle Chillers / Low Temperature Boilers GENERAL Units shall be Underwriter Laboratories (UL) listed
More informationAir-Cooled Condensers
Air-Cooled Condenser Installation & Operation Bulletin No. H-IM-90 February 2017 Part Number 25007301 Replaces H-IM-90, October 2015 Air-Cooled Condensers Installation and Operation Guide Applicable for
More informationPS SERIES PARALLEL RACK SYSTEM GLYCOL CHILLER START UP GUIDE 11/03/2015 Rev 00
PS SERIES PARALLEL RACK SYSTEM GLYCOL CHILLER START UP GUIDE 11/03/2015 Rev 00 1 Contents INTRODUCTION... 3 WARNING LABELS AND SAFETY INSTRUCTIONS... 4 PARALLEL RACK NOMENCLATURE... 5 GENERAL RACK DESCRIPTION...
More informationInRow TM RA. SKUs ACRA100 ACRA101. Technical Data
InRow TM RA SKUs ACRA100 ACRA101 Technical Data American Power Conversion Legal Disclaimer The information presented in this manual is not warranted by the American Power Conversion Corporation to be authoritative,
More informationMEDICAL CHILLER SYSTEMS
Mission Critical Chilled Water Systems Engineered to Exacting Standards Magnetic Resonance Imaging Systems CT Scanners Oncology Linear Accelerators Blood Cooling Systems Precise Laboratory Applications
More informationAmendment Sheet. Nomenclature M 5 AC V 100 C R - F X AA. Code : M5ACV Date : Superceded : M5ACV
Amendment Sheet Code : M5ACV-2005-0002 Date : 08-05-2006 Superceded : M5ACV-2005-0001 Nomenclature Production spec variation Type of ref. connection X : Not applicable Electrical A : 220-240V/1Ph/50Hz
More informationCHGV AIR COOLED WATER CHILLER WITH HYDRAULIC EQUIPMENT AIR / WATER 47 to 78 kw
TECHNICAL INSTRUCTIONS CHGV AIR COOLED WATER CHILLER WITH HYDRAULIC EQUIPMENT AIR / WATER 47 to 78 kw CHGV CHGV 64 CHGV 72 CHGV 80 PHRV heat pump model also available May 2006 10 12 167 - GB - 00 MARKING
More informationMAC-120HE-03 Air-Cooled Chiller
MAC-120HE-03 Air-Cooled Chiller 10 Ton / 120,000 BTUH Air-Cooled Chiller 380/415/460-3-50/60 1 HVAC Guide Specifications Air-Cooled Liquid Chiller Nominal Size: 10 Tons Multiaqua Model Number: MAC-120HE-03
More informationIndustrial Refrigeration. Brochure R/S CB 02/10
Industrial Refrigeration Brochure R/S CB 02/10 Page 2 Parker Industrial Refrigeration Group, Refrigerating Specialties and HERL, is the premier supplier to the food and beverage industry. We ve been the
More informationAQH 40 to 130. u Air-to-Water Reverse Cycle Heat Pumps. 40 to 131 kw. 45 to 141 kw. Engineering Data Manual
u Air-to-Water Reverse Cycle Heat Pumps AQH 40 to 130 40 to 131 kw 45 to 141 kw Engineering Data Manual EDM AQH-W.3GB Date : November 2007 Supersedes : TM AQH-W.2GB/03.04 Specifications The Aqu@Logic air-to-water
More informationDunham Bush Air Cooled Screw Chiller AFVX B 6SR Series
Dunham Bush Air Cooled Screw Chiller AFVX B 6SR Series Type of Compressors Compressor Rotary Scroll Reciprocating Screw Centrifugal Air Cooled Chiller 77 ~ 329TR (270 ~ 1156 kw) ACDX Series 100 ~ 520TR
More informationNext P kw COOLING 5 93 kw HEATING. technicalcatalogue. Heat pump air conditioners with upflow air delivery T_NXTP_0411_GB
Next P 6 112 kw COOLING 5 93 kw HEATING Heat pump air conditioners with upflow air delivery technicalcatalogue T_NXTP_0411_GB INDEX GENERAL CHARACTERISTICS... 3 SERIES IDENTIFICATION... 4 MODEL IDENTIFICATION...
More informationService Facts. Split System Cooling 3.0 Ton 4A7A6036J-SF-1B-EN. January A7A6036J1000A
Service Facts Split System Cooling 3.0 Ton 4A7A6036J1000A Note: Graphics in this document are for representation only. Actual model may differ in appearance. SAFETY WARNING Only qualified personnel should
More informationCOMMON WATERSIDE ECONOMIZER APPLICATIONS:
APPLICATION MANUAL WATERSIDE ECONOMIZER TABLE OF CONTENTS Safety Approvals...1 Common Waterside Economizer Applications...1 Sequence of Operation (Single)...1 Cooling Mode...2 Heating Mode...2 Sequence
More informationChiller Plant Design. Julian R. de Bullet President debullet Consulting
Chiller Plant Design Julian R. de Bullet President debullet Consulting 703-483-0179 julian@debullet.com This ASHRAE Distinguished Lecturer is brought to you by the Society Chapter Technology Transfer ASHRAE
More informationSARAVEL Minichill PACKAGED LIQUID CHILLERS
CAT-SMCH-99(3) SUPERSEDES CAT.NO.910-96 SARAVEL Minichill PACKAGED LIQUID CHILLERS TABLE OF CONTENTS Introduction.....3 Physical Data.....4 Unit Dimensions...5-6 Installation Details.... 7-8 Engineering
More informationDUCTED SPLIT AIR CONDITIONERS 50Hz GCUN/GDS SERIES R 407C
DUCTED SPLIT AIR CONDITIONERS 50Hz GCUN/GDS SERIES R 407C CONTENTS General features Page 3 Components features Pages 3 to 5 Compressors Condensers Condenser fans Evaporators Evaporator fan and drive Casing-Structure
More informationCase 13 Food Storage & Processing Center
Case 13 Food Storage & Processing Center Copy Right By: Thomas T.S. Wan ( ) Feb. 2, 2002 All Rights Reserved Case Background: The refrigeration system is for a food processing and storage facility. The
More informationwater source / fan coils
MANUAL BALL ALE W/MEMORY STOP (BMS) An adjustable stop position lever to limit travel of the On/Off handle. This allows the ball valve to be closed, and returned to the balance setting position without
More informationR22 R407C. 60Hz. ACHDX Series. 225 to 415 Tons. Air Cooled Horizontal Rotary Screw Chillers. Products That Perform...
R Products That Perform...By People Who Care Form No: MS0464A Air Cooled Horizontal Rotary Screw Chillers R22 R407C Series 225 to 415 Tons 60Hz TABLE OF CONTENTS Page No. Page No. Nomenclature... 2 Physical
More informationDesign Based Comparative Study of Several Condensers Komal B. Dabhi 1, Prof. S. B. Thakore 2 1 Chemical Engg. Dept., L. D. College of Engineering, Ahmedabad 380015 2 Chemical Engg. Dept., L. D. College
More informationService Step by Step Trouble-Shooting Check-List
WARNING: Only Data Aire trained technician or experience technicians should be working on Data Aire Equipment. Protect yourself at all times and work safe. Date: Dates at the job site: From: to Job#: Serial#:
More information500 EX Fusion Compressor Series
500 EX Fusion Compressor Series R404A M/T R404A L/T Capacity RANGE 13.8kW - 20.4kW 7.7kW -11.2kW Copeland Fusion Semi-Hermetic Horizontal Scroll Compressors For Medium and Low Temperature Applications
More informationACCESSORY KIT INSTALLATION INSTRUCTIONS
ACCESSORY KIT INSTALLATION INSTRUCTIONS HOT WATER AND STEAM COIL ACCESSORIES MODELS 1HW0410, 0411, 0412 and 1NF0456, 0457, 0458 For 7.5 Thru Ton Generation 2 Split System Indoor Units 643960-UAI-A-0910
More informationUSER S MANUAL HSC-14/18/24/24A
AIRREX AIR CONDITIONER USER S MANUAL HSC-14/18/24/24A Thank you for purchasing an AIRREX AIR CONDITIONER. BEFORE operation please read this user s manual carefully. Keep this manual readily available.
More informationA/C Cooling Load calculation and measurement
Testo Inc. 40 White Lake Rd. Sparta NJ 07871 (800) 227-0729 A/C Cooling Load calculation and measurement When we talk about sizing an air conditioning appliance (tons of cooling, BTU/h or KW), we are specifying
More informationTEST REPORT #47. System Drop-in Test of R-32 and Refrigerant Blends ARM-71a, HPR2A, L-41-2 and DR-5A in a Five-Ton R-410A Rooftop Packaged Unit
Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #47 System Drop-in Test of R-32 and Refrigerant Blends ARM-71a,
More informationBASIL 6000 TUNNEL CAGE WASHER
BASIL 6000 TUNNEL CAGE WASHER APPLICATION For thorough, efficient cleaning of cages, debris pans, bottles, feeder bowls, and miscellaneous items used in the care of laboratory animals. DESCRIPTION The
More informationH EDRICK ASSOCIATES OF GRAND RAPIDS West Michigan s Factory Representative
A U.S. Environmental Protection Agency survey released in 2007 concluded that IT data centers consumed 61 billion kw of electricity at a total cost of $4.5 billion in 2006. As energy costs continue to
More informationEmerging Technologies: VFDs for Condensers. Douglas T. Reindl Director, IRC University of Wisconsin-Madison. University of Wisconsin-Madison
Emerging Technologies: VFDs for Condensers Douglas T. Reindl Director, IRC University of Wisconsin-Madison University of Wisconsin-Madison 1 We ve looked at VFDs on Evaporators and compressors, what is
More information