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VL Series, 0.25 to 1.5 ton models
Portable Chillers
Installation
Maintenance
Operation
Troubleshooting
The Conair Group, Inc.
One Conair Drive
Pittsburgh, PA 15202
Phone: (412) 312-6000
Fax: (412)-312-6227
UGH020/0301
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It’s a good idea to record the model and serial number(s) of Please record your your equipment and the date you received it in the User equipment’s model and Guide. Our service department uses this information, along serial number(s) and with the manual number, to provide help for the specific the date you received it equipment you installed. in the spaces provided. Please keep this User Guide and all manuals, engineering prints and parts lists together for documentation of your equipment. Date:
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TABLE OF CONTENTS 1.0 GENERAL 5 1.1 Unit location 6 1.2 Efficiency 6 1.3 Safety 6 1.4 Clean air act 6 1.5 Miscellaneous 7 2.0 INSTALLATION 9 2.1 General 10 2.2 To and From process connections 10 2.3 Unit drain 11 2.4 Air-cooled condenser 11 2.5 Electrical connection 12 3.0 OPERATIONS SEQUENCE 13 3.1 General 14 3.2 Start up / operations procedure 14 3.3 Instrument operation 15 3.4 Shut down / disconnect sequence 18 4.0 TROUBLESHOOTING 19 4.1 Unit will not start 20 4.2 Pump will not start 20 4.3 C
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1.0 GENERAL 1.1 UNIT LOCATION 1.2 EFFICIENCY 1.3 SAFETY 1.4 CLEAN AIR ACT 1.5 MISCELLANEOUS Page: 5 UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons
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1.1 UNIT LOCATION A. The unit is designed for indoor use only. For most efficient operation, locate the chiller in a clean, dry and well ventilated environment. B. The unit has an air-cooled refrigerant condenser. For air-cooled condensers, a motor driven fan generates air flow through the condenser to remove heat from the refrigerant system. The air- cooled condenser on the unit will discharge a maximum of 15,000 BTUs per hour per ton of cooling. C. The unit must have a minimum entering air tem
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B. Please be aware that effective July 1, 1992, it is unlawful for any person in the course of maintaining, servicing, repairing, or disposing of refrigeration equipment to knowingly vent or otherwise dispose of any class 2 substance used as a refrigerant in the manner which permits such substance to enter the environment. C. De minimis releases associated with good faith attempts to recapture, reclaim, or recycle such substance shall not be subject to the prohibition set forth in the preceding
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2.0 INSTALLATION 2.1 GENERAL 2.2 TO AND FROM PROCESS CONNECTIONS 2.3 UNIT DRAIN 2.4 AIR COOLED CONDENSER 2.5 ELECTRICAL CONNECTION Page: 9 UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons
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2.1 GENERAL A. 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. B. All such materials must have the equivalent or larger diameter of the particular process connection that length of process water piping is connected to. From process connection: connect to “water out” on process manifold To process connection: connect to “water in” on process manifold 2.2 T
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2.3 DRAIN CONNECTION: A. The unit is supplied as standard with a ProCon type pump. In some cases, it may be necessary to drain the unit. This is done by removing the pump volute plug in the pump assembly. B. Note that if chemical treatment of process fluid or additives are use, drainage shall be done according to local codes. C. It is important to note that drainage procedures must be done prior to shipment or outdoor storage or the unit. If not, freezing damage can occur. Motor Thermocouple Pum
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2.5 ELECTRICAL CONNECTION A. NEMA 1 MODELS 1. 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. WARNING: Do not connect the unit to a voltage supply source not equal to the unit’s voltage requirements as specified on the unit’s data plate. Use of incorrect voltage will void the unit’s warranty and cause a significant hazard that may result in serious
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3.0 OPERATIONS 3.1 GENERAL 3.2 START UP/OPERATIONS PROCEDURE 3.3 INSTRUMENT OPERATION 3.4 SHUT DOWN/DISCONNECT SEQUENCE Page: 13 UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons
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3.1 GENERAL A. Failure to follow the factory required operation procedures may adversely affect the unit’s ability to control process temperature and may create a hazardous operating condition which may result in unit damage and serious operator injury or death. B. The Operations segment of this manual is outlined below: 3.2 Machine start-up/operations procedure - follow this segment to start the unit after the initial installation or to restart the unit after reinstallation to the same or diffe
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B. OPERATIONS 1. Turn the thermostat to the highest setting. 2. 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. 3. Check the unit and process system for leaks. Repair any that are discovered. 4. Adjust the setpoint thermostat as required for the process. 5. Note, the compressor will start if the fluid temperature is above the selected setpoint temperature. When the compressor starts, listen
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Output Status Light Up Arrow UP Set Button Press for less than out DOWN 3 seconds to change Down Arrow SET setpoint. ewpc902t Press for more than 4 seconds to access parameters. 2. 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. 3. DOWN: used to decrease the setpoint value, as well as the parameter when in programming. When held down for a few seconds, the change rate accelerates. 4. OUT: stat
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8. 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. 9. HC1: Heating/Cooling. Relay switch function. H = heating (humidification; reverse action); C = cooling (dehumidification; direct action). 10. rP1: relay Protection 1. Determines the status of the relay in case of sensor defect. Factory set at “ro”. ro = relay open; rc = relay closed. 11. LF1: Led Function 1. Determines whether the status light in O
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DEFAULT SETTING - STANDARD MODLES PARAMETER DECRIPTION RANGE UNIT FACTORY d1 differential min / max C / F 4 LS1 Lower Set min / max C / F 40 HS1 Higher Set min / max C / F 70 od output delay min / max seconds 60 Lci Low current input min / max various 0 Hci High current input min / max various 0 CAL CALibration min / max C / F 0 PSE Probe SElection Ni / Pt / Fe / Cr / rh / Fe HC1 Heating / Cooling H / C flag C rP1 relay Protection ro / rc flag RO LF1 Led Function di / in flag OF dp decimal P
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4.0 TROUBLESHOOTING 4.1 UNIT WILL NOT START 4.2 PUMP WILL NOT START 4.3 COMPRESSOR WILL NOT START 4.4 UNIT SHUTS DOWN ON HIGH PRESSURE SWITCH 4.5 UNITS SHUTS DOWN ON LOW PRESSURE SWITCH Page: 19 UGH020/0301 VL Series Portable Chillers, 0.25 to 1.5 Tons
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4.1 UNIT WILL NOT START A. Blow fuse at power supply - isolate open fuse and replace. Double check fuse sizes against nameplate amperage. B. Low voltage - measure incoming voltage with meter, voltage must be within 10% of nameplate voltage or warranty will be voided. 4.2 PUMP WILL NOT START A. Impeller bound or frozen shaft bearing in motor. B. Open motor winding. C. Internal overload tripped. D. Loose wire connection or defective start capacitor. E. On/off circuit breaker tripped. 4.3 COMPRESSO
