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Related Manuals for Conair 0.25 to 1.5 ton
Summary of Contents for Conair 0.25 to 1.5 ton
- Page 1 Portable Chillers VL Series, 0.25 to 1.5 ton models Installation Maintenance Operation Troubleshooting Instant Access Parts and Service (800) 458-1960 (814) 437-6861 www.conairnet.com The Conair Group, Inc. One Conair Drive Pittsburgh, PA 15202 Phone: (412) 312-6000 Fax: (412)-312-6227 UGH020/0301...
- Page 2 UGH020/0301 Serial number(s): Model number(s): DISCLAIMER: The Conair Group, Inc., shall not be liable for errors contained in this User Guide or for incidental, consequential dam- ages in connection with the furnishing, performance or use of this information. Conair makes no warranty of any kind with regard to this information, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose.
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Page 3: Table Of Contents
TABLE OF CONTENTS GENERAL Unit location Efficiency Safety Clean air act Miscellaneous INSTALLATION General To and From process connections Unit drain Air-cooled condenser Electrical connection OPERATIONS SEQUENCE General Start up / operations procedure Instrument operation Shut down / disconnect sequence TROUBLESHOOTING Unit will not start Pump will not start... - Page 4 THIS PAGE INTENTIONALLY BLANK Page: 4 VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301...
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Page 5: General
GENERAL UNIT LOCATION EFFICIENCY SAFETY CLEAN AIR ACT MISCELLANEOUS UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 5... - Page 6 The unit must have a minimum of two feet clearance at the air intake and six feet at the exhaust air discharge. If the operator has any questions concerning the location and operation of the unit, contact the Conair service department at 800-458-1960. EFFICIENCY...
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Page 7: Miscellaneous
The ability of the unit to maintain process temperature control is significantly affected by the method of installation. If the operator has any questions concerning the location and operation of the unit, please contact the Conair service at 800-458-1960 or 814-437-6861 Electrical Panel VL Series Portable Chillers, 0.25 to 1.5 Tons... - Page 8 THIS PAGE INTENTIONALLY BLANK Page: 8 VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301...
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Page 9: Installation
INSTALLATION GENERAL TO AND FROM PROCESS CONNECTIONS UNIT DRAIN AIR COOLED CONDENSER ELECTRICAL CONNECTION UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 9... -
Page 10: To And From Process Connections
GENERAL All process piping materials (such as hose, rigid piping, valves or filters) used in process water piping circuitry must be rated for 100°F minimum temperature and 100 PSI minimum pressure. All such materials must have the equivalent or larger diameter of the particular process connection that length of process water piping is connected to. -
Page 11: Air-Cooled Condenser
60°F and 95°F for efficient operation. Operating above 95°F may result in elevated condensing pressures and eventual shut-down on the high pressure safety switch. Check with the Conair service department for more information on operating with ambient air temperatures above 95°F or below 60°F. -
Page 12: Electrical Connection
ELECTRICAL CONNECTION NEMA 1 MODELS CONTROL CIRCUIT WIRING GENERAL Microprocessor controller Page: 12 VL Series Portable Chillers, 0.25 to 1.5 Tons Electrical power supply requirements for Nema 1 units (figure 2.5A) are identified on the equipment data plate. Verify that available voltage supply is the same as the unit’s voltage requirements. -
Page 13: Instrument Operation
OPERATIONS GENERAL START UP/OPERATIONS PROCEDURE INSTRUMENT OPERATION SHUT DOWN/DISCONNECT SEQUENCE UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 13... -
Page 14: Start Up/Operations Procedure
The unit has an internal reservoir which must be filled and maintained for proper operation. Conair recommends the addition of 20% inhibited propylene glycol to the process fluid. This should help prevent the process fluid from freezing and internal components from rusting. -
Page 15: Instrument Operation
OPERATIONS INSTRUMENT OPERATION GENERAL DESCRIPTION FRONT KEYPAD UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Turn the thermostat to the highest setting. Shift the illuminated toggle switch to the ‘ON’ position. The pump will begin operations. Note the reservoir level, if it drops below 3/4 full, add fluid. -
Page 16: Description Of Parameters
Up Arrow Down Arrow DESCRIPTION OF PARAMETERS Page: 16 VL Series Portable Chillers, 0.25 to 1.5 Tons DOWN ewpc902t UP: used to increase the setpoint value, as well as the parameter when in programming. When held down for a few seconds, the change rate accelerates. DOWN: used to decrease the setpoint value, as well as the parameter when in programming. - Page 17 PARAMETERS DEFAULTS UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons PSE: Probe SElection. Input type (for RTD or Thermocouples only). RTD models: Ni = Ni100; Pt = Pt100. T/C models: FE = TcJ; Cr = TcK; rh = TcS. HC1: Heating/Cooling.
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Page 18: Shut Down / Disconnect Sequence
ERROR ANNUNCIATION SHUT DOWN/DISCONNECT SEQUENCE PRECAUTIONS/WARNINGS UNIT SHUT DOWN (without system disconnect) Page: 18 VL Series Portable Chillers, 0.25 to 1.5 Tons DEFAULT SETTING - STANDARD MODLES PARAMETER DECRIPTION RANGE differential min / max Lower Set min / max Higher Set min / max output delay min / max... -
Page 19: Troubleshooting
TROUBLESHOOTING UNIT WILL NOT START PUMP WILL NOT START COMPRESSOR WILL NOT START UNIT SHUTS DOWN ON HIGH PRESSURE SWITCH UNITS SHUTS DOWN ON LOW PRESSURE SWITCH UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 19... -
Page 20: Unit Shuts Down On Low Pressure Switch
UNIT WILL NOT START Blow fuse at power supply - isolate open fuse and replace. Double check fuse sizes against nameplate amperage. Low voltage - measure incoming voltage with meter, voltage must be within 10% of nameplate voltage or warranty will be voided. PUMP WILL NOT START Impeller bound or frozen shaft bearing in motor. - Page 21 Restriction to refrigerant flow in refrigeration circuit. Poor heat transfer in evaporator tank because (1) percentage of glycol to water is too high and (2) scaled tubes in evaporator tank (chemically descale). Low flow through evaporator tank due to (1) process flow restricted or (2) glycol foaming.
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Page 23: Maintenance
MAINTENANCE WARRANTY SERVICE PROCEDURE PERIODIC PREVENTATIVE MAINTENANCE SPECIAL MAINTENANCE PUMP REPAIR UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 23... -
Page 24: Warranty Service Procedure
“on-site” inspection of the unit in order to determine the course of repair. If the chiller is not covered by the warranty, Conair will advise on the repair and recommend available service contractors. Conair manufactures a complete line of heat transfer equipment. It is of the utmost importance that Conair have the correct model number and serial number of the machine in question. -
Page 25: Special Maintenance
Refrigerant sight glass: check for bubbles when compressor is operating at 100%. Check the moisture indicator for a color other than green. Clean unit. SPECIAL MAINTENANCE Any service of the refrigeration system must be accomplished by a certified refrigeration technician. PUMP REPAIR The positive displacement pump in the unit is not field serviceable. - Page 26 THIS PAGE INTENTIONALLY BLANK Page: 26 VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301...
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Page 27: Components
COMPONENTS WATER SYSTEM REFRIGERATION SYSTEM UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 27... -
Page 28: Refrigeration System
WATER SYSTEM MOTOR/PUMP ASSEMBLY: the motor/pump assembly circulates chilled fluid to the process loop. The pump assembly is built of brass to maintain water quality. REFRIGERATION SYSTEM COMPRESSOR: hermetic compressors take low pressure/low temperature refrigerant gas and compress the gas into high pressure/high temperature gas). -
Page 29: Related Drawings
RELATED DRAWINGS ELECTRICAL DRAWING (TYPICAL) CIRCUIT SCHEMATIC UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 29... -
Page 30: Electrical Drawing (Typical)
ELECTRICAL DRAWING (TYPICAL) GREEN PUMP DUAL HIGH-LOW PRESSURESTAT Page: 30 VL Series Portable Chillers, 0.25 to 1.5 Tons 230/1/60 PRIMARY 24 VAC SECONDARY TYPE "J" THERMOCOUPLE ELIWELL 902T UNIT ON/OFF GREEN GREEN RELAY CONDENSING UNIT UGH020/0301 POWER ENTRY 230/1/60... -
Page 31: Circuit Schematic
CIRCUIT SCHEMATIC UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons ITEM DESCRIPTION Compressor Air cooled condenser Liquid receiver Filter-drier Refrigerant sight glass Expansion valve Evaporator Pump To process connection From process connection Reservoir tank Refrigerant safety switch Page: 31... - Page 32 THIS PAGE INTENTIONALLY BLANK Page: 32 VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301...
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Page 33: Appendix
APPENDIX SPECIFICATIONS OPERATION BELOW 45°F WATER QUALITY CONTROL INHIBITED PROPYLENE GLYCOL CHILLER CAPACITY AND DERATE CHART PRESSURE - TEMPERATURE CHART FOR R-22 REFRIGERANT ENGINEERING FORMULAS SPARE PARTS LIST UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons Page: 33... - Page 34 ** No allowance for inrush. Service disconnect by owner. Full load amps must be used to size disconnects and supply conductors. Consult factory for 50hz operation. Specifications can change at any time. Contact your Conair representative for the most current information. Page: 34 VL Series Portable Chillers, 0.25 to 1.5 Tons...
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Page 35: Freeze Protection
OPERATION BELOW 48°F A chiller typically operates with a setpoint of 50°F or higher. However, if setpoints between 20° - 48°F are required, special precautions must be taken to prevent freezing and possible damage. Attention must be given to freeze protection, water supply and safety adjustments. -
Page 36: Safety Adjustments
SAFETY ADJUSTMENTS PRECAUTIONS Page: 36 VL Series Portable Chillers, 0.25 to 1.5 Tons Therefore, the water supply source must be disconnected and the connection capped. The operator must monitor the water/glycol level and manually make-up to maintain proper reservoir level. To ensure safe and efficient operations at lower setpoints, adjustments of the freezestat and low pressurestat factory settings are required. -
Page 37: Water Quality Control
WATER QUALITY CONTROL Lack of, as well as, improper water treatment can damage the chilling unit. The services of a competent water treatment specialist should be obtained and their recommendations followed. It is the equipment owner’s responsibility to prevent damage from foreign material or inadequate water treatment. -
Page 38: Maintenance Responsibility
USE OF PLAIN GLYCOL: AUTOMOTIVE BASED ANTIFREEZE: MAINTENANCE RESPONSIBILITY: Page: 38 VL Series Portable Chillers, 0.25 to 1.5 Tons Even through they do lower the freeze point, plain glycols are even more corrosive than water. The corrosion rate of plain ethylene glycol on iron, for example, is more than 2.5 times faster than plain water. -
Page 39: Chiller Capacity And Derate Chart
CHILLER CAPACITY AND DERATE CHART Standard chiller rating is at 50°F. For all other temperature settings, output tonnage is altered as follows: TEMPERATURE NOTES: If operation of the chiller at less than 48°F is required, an inhibited propylene glycol solution is required. Consult factory for chiller operation below 20°F. -
Page 40: Saturated Temperature
PRESSURE-TEMPERATURE CHART FOR R-22 REFRIGERANT SATURATED TEMPERATURE 40°F 45°F 50°F 55°F 60°F 65°F 70°F 75°F 80°F 85°F 90°F 95°F 100°F THESE PRESSURE/TEMPERATURE RELATIONSHIPS ARE IN AN AT-REST, SATURATED CONDITION. FOR EXAMPLE, IF THE UNIT HAS BEEN IN A WAREHOUSE AT 40° AND IS BROUGHT INTO A ROOM WHERE IT IS 80°, IT MAY TAKE A COUPLE OF HOURS FOR THE UNIT TO WARM UP AND THE PRESSURE TO RISE TO THE SURROUNDING AMBIENT CONDITIONS. - Page 41 USEFUL ENGINEERING FORMULAS Page: 41 UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons...
- Page 42 PARTS LIST PART DESCRIPTION 800000 Caster - 3” swivel 810000 Caster - 3” rigid 895010 Coil - Chas 3100 1527475 Condensing unit #F3AHA101CFV-201 203-1-60 R-22 2169475 Filter drier - C-0525 2971475 Expansion valve - #EVGE-1-CP100 4345900 CONTROLLER - #EWPC 902T Type J 4714350 Pump motor - 1/2 HP 1725 RPM 230-1-60 #3K090 6206498...
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Page 43: How To Contact Customer Service
Conair has made the largest investment in customer support in the plastics industry. Our service experts are available to help with any problem you might have installing and operating your equipment. Your Conair sales representative also can help analyze the nature of your problem, assuring that it did not result from misapplication or improper use. -
Page 44: Equipment Guarantee
Returns must be prepaid. Purchaser must notify Conair in writing of any claim and pro- vide a customer receipt and other evidence that a claim is being made.
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