Temptek CF Series, Instruction Manual

Page 1: ...ION MAINTENANCE TEMPTEK INC 525 East Stop 18 Road Greenwood IN 46142 317 887 0729 fax 317 881 1277 Service Department fax 317 885 8683 www Temptek com E mail sales Temptek com Covering models From 5 to 40 tons With M1 Instruments Scroll Compressors Model Serial Number ...

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Page 3: ... COMPRESSORS AIR WATER COOLED MODELS COVERING INSTALLATION OPERATION MAINTENANCE TEMPTEK INC 525 East Stop 18 Road Greenwood IN 46142 Phone 317 887 0729 fax 317 881 1277 Service Department fax 317 885 8683 www Temptek com E mail sales Temptek com ...

Page 4: ...l 24 3 2 Start up operations procedure 24 3 3 Instrument operation 32 3 4 Shut down procedure 36 4 0 TROUBLESHOOTING 37 4 1 Unit Will Not Start 38 4 2 Compressor Hums But Will Not Start 38 4 3 Shuts Off On High Pressure 38 4 4 Shuts Off On Low Pressure 39 4 5 Compressor Shuts Off On Internal Overload 40 4 6 Low Or No Process Pressure Or Water Flow 40 4 7 Cooling Capacity Inadequate 41 4 8 Sensor 4...

Page 5: ... 7 9 Typical Physical Air Cooled 15 20 Tons Fan Cooled 68 7 10 Typical Physical Air Cooled 15 30 Tons Blower 69 7 11 Typical Physical Air Cooled 5 10 Tons With Remote Condenser 70 7 12 Typical Physical Air Cooled 15 30 Tons With Remote Condenser 71 7 13 Typical Physical Water Cooled 5 Tons 72 7 14 Typical Physical Water Cooled 7 5 10 Tons 73 7 15 Typical Physical Water Cooled 15 30 Tons 74 7 16 Ty...

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Page 7: ...MPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 1 0 GENERAL 1 1 Introduction 1 2 Safety 1 3 Receiving Instructions 1 4 Efficiency 1 5 Clean Air Act 1 6 Miscellaneous 1 7 Water Treatment 1 8 Components ...

Page 8: ... failure will release it Refrigerant gas can cause toxic fumes if exposed to fire Install this unit in a well ventilated area away from open flames Failure to follow these instructions may result in a hazardous condition Recover refrigerant to relieve pressure before opening the system See nameplate for refrigerant type Do not use non approved refrigerants or refrigerant substitutes D Customers sh...

Page 9: ...f the refrigeration system under pressure System should only be serviced by a licensed technician WARNING This equipment contains hazardous voltages that can cause severe injury or death Disconnect and lock out incoming power before installing or servicing the equipment WARNING This equipment contains refrigerant under pressure Accidental release of refrigerant under pressure can cause personal in...

Page 10: ... Manufacturer accepts no responsibility for inefficient operation or damage caused by foreign materials or failure to use adequate water treatment 1 5 CLEAN AIR ACT A Units manufactured after January 1 2010 may contain refrigerant HFC 410A HFC 407C HFC 404A or HFC 134A Most units manufactured prior to January 1 2010 contain refrigerant HCFC 22 B It is unlawful for any person in the course of maint...

Page 11: ...ices of a qualified water treatment specialist be engaged to determine what water treatment is required C Advantage assumes no responsibility for equipment failures which result from untreated or improperly treated water D Do not use deionized water in this unit Some customized units may be compatible with deionized water Consult the factory before using deionized water 1 7 COMPONENTS WARNING Impr...

Page 12: ... shown ABS fascia top and enclosure panels removed for photo Caster Compressor Liquid Line Solenoid Filter Drier Refrigerant Site Glass Fan Motor Protective Fan Shroud Bypass Bypass Water Regulator Valve Coolant Pump Water Cooled Condenser Electrical Cabinet Pressure Gauges Compressor Insulated Reservoir Air Discharge Coolant Pump Pressure Gauges Expansion Valve Insulated Reservoir Tank Electrical...

Page 13: ...eenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 2 0 INSTALLATION 2 1 General 2 2 Unit Location 2 3 To and From Process Connections 2 4 Make Up Water Supply Connection 2 5 Air Cooled Condenser Installation 2 6 Water Cooled Condenser Installation 2 7 Electrical Connection ...

Page 14: ...in such a way that an unforeseen fluid leak will not damage its surroundings B For air cooled and water cooled models 1 These units are designed for indoor use only 2 For most efficient operation locate the chiller in a level clean dry and well ventilated environment C For air cooled models 1 The unit has an air cooled refrigerant condenser For air cooled condensers a motor driven fan on models fr...

Page 15: ... not recommended because it does not have adequate debris holding capacity D Process water piping should be designed to avoid excessive elbows and or lengths of pipe or hose If using flexible hose avoid tight twists or curls and excessive lengths E Valves and filters may be installed in the process water piping to facilitate service and maintenance provided that such devices maintain the full insi...

Page 16: ...e limit switch Air temperatures below 60 F may result in over condensing pressures and cause a low pressure refrigerant fault Consult with the Manufacturer s service department for more information on operating with ambients air temperatures above 95 F or below 60 F B Air flow is generated by the motor mounted fans or centrifugal blowers Air flow is from the outside of the chiller through the cond...

Page 17: ...nit without the enclosure panels in place will result in a refrigerant fault H Condenser Air Filtering Use a filter that produces very low air flow restrictions Generally a disposable fiberglass filter with a MERV rating of 2 3 provides adequate air filtration The purpose of the filter is to prevent large particles such as dust lint and debris from fouling the condenser You should be able to see t...

Page 18: ...er regulator valve E The water regulator valve is normally factory set for proper operation When field adjustments are required turn the adjusting nut on the top of the valve counter clockwise to raise the refrigerant pressure and clockwise to lower the pressure Adjustments should be made only when the chiller is running at full load 2 7 ELECTRICAL CONNECTION A STANDARD MODELS 1 All electrical wir...

Page 19: ... allows the matching of the entry hole size and location to the customer supplied fittings 5 A unit specific electrical drawing is shipped with the unit 6 Voltage supplies must be within 10 of the name plate voltage and must be within 2 from leg to leg Extreme voltage imbalance or using the wrong voltage can damage your chiller and cause premature unit failure as well as a safety risk 7 A proper g...

Page 20: ...CF Series Portable Chiller Air Water Cooled 5 40 Tons Page 20 TEMPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com Electrical Panel ...

Page 21: ...ormer Terminal Strip Pump Starter Pump Overload Block Power Entry Terminal Block Pump Transformer Fusing Ground Lug Transformer Line Voltage to 115 volts Grounding Bus Bar Compressor Fan Contactor Typical electrical panel after October 2015 Instrument Transformer Terminal Strip Pump Starter and Overload Block Power Entry Terminal Block Pump Transformer Fusing Transformer Line Voltage to 115 volts ...

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Page 23: ...ater Cooled 5 40 Tons Page 23 TEMPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 3 0 OPERATIONS 3 1 General 3 2 Start Up Operations Procedure 3 3 Instrument 3 4 Shut Down ...

Page 24: ...ormation on system shut down electrical power supply precautions and disconnection from system 3 2 START UP OPERATION PROCEDURE A System Fill 1 For operating temperatures from 48 F to 80 F use water to fill the unit For operating temperatures below 48 F a water and propylene glycol mixture must be used An inhibited propylene glycol can be used for operating temperatures above 48 F if desired to pr...

Page 25: ...illed and air is purged additional fluid may be required to restore the reservoir to the correct level Verify reservoir level via the coolant sight glass 6 Do not use deionized water in this unit unless your unit was specifically designed for use with deionized water Consult factory if not certain B PROPER ROTATION PHASING OF SCROLL COMPRESSORS PUMPS FANS 1 Correct compressor fan on air cooled uni...

Page 26: ...stantial time 7 Procedure to set proper rotation a Supply electrical power to the unit Once the correct voltage is supplied to the unit the POWER switch on the unit s control panel will illuminate Adjust the setpoint to 70 F or higher to prevent the compressor from activating during this procedure b Remove all necessary cover panels to access the pump motor c Locate the pump s electric motor The o...

Page 27: ... must identify the cause as outlined in the troubleshooting and repair section of this manual f If the motor shaft is phased correctly shaft turns in a clockwise direction continue with step C If the motor shaft is NOT phased correctly shaft turns in a counter clockwise direction correct as outlined in step 2 2 If the unit is phased incorrectly the operator must a Disengage the electrical power su...

Page 28: ...motor overload protection circuit 2 Switch on the illuminated ON OFF SWITCH to activate the process pump Wait a few moments to allow air to be purge from system Observe the COOLANT pressure gauge for steady readout Check unit for low and high flow 3 LOW FLOW If a low flow condition is present be sure all process valves are open If all process valves are open and a low flow conditions exists consid...

Page 29: ...n is present a High flow can cause premature component wear and poor operating conditions b Adjust the flow so that an 8 F 10 F rise in water temperature is indicated while the system is fully loaded 5 If an excessive flow situation is encountered and the motor overload circuit has tripped the operator must manually reset the overload relay before operations can continue This is done by opening th...

Page 30: ...caution must be observed while the cabinet panel is open b Identify the motor starter block This block consists of the motor starter contactor and the overload relay Motor Overload block on panels prior to October 2015 WARNING The electrical power is engaged at this point and caution must be observed while the electrical supply is engaged and cabinet panels are removed and opened Motor Overload bl...

Page 31: ...e amp rating a throttling valve must be installed in the from process water line The throttling valve can be a gate valve or a ball valve h With the throttling valve installed fully close the valve and then engage the pump motor Slowly open the throttling valve and monitor the motor amps as displayed on the amp meter until the actual motor amps equal the listed full load amp rating of the motor Th...

Page 32: ... start the unit 2 Upon power up the instrument displays ChF indicating that the unit is in Fahrenheit temperature mode or ChC indicating that it is in Celsius mode The control then shows the current setpoint for approximately 2 seconds before reverting to the To Process temperature When power is supplied to the unit the ON OFF switch will illuminate M1 Series Control This control instrument is use...

Page 33: ...anual for more information B INSTRUMENT OPERATION 1 To start the unit toggle on the illuminated ON OFF SWITCH The pump will start and the chiller control will begin temperature control operations 2 To select setpoint temperature press and hold the UP ARROW or DOWN ARROW keys until the desired set point temperature is displayed in the TEMPERATURE WINDOW The default range for the setpoint temperatur...

Page 34: ...ease continuously 3 SETPOINT LOCK OUT JUMPER This jumper controls whether the user is allowed to reduce the setpoint below 48 F or 9 C If the jumper is in position 1 farthest from the SPL label the user IS NOT ALLOWED to reduce the setpoint below 48 F or 9 C If the jumper is in position 2 closest to the SPL label the user is allowed to reduce the setpoint to 10 F or 11 C 4 TEMPERATURE DISPLAY JUMP...

Page 35: ...e troubleshooting E TEMPERATURE DISPLAY 1 A three digit display window indicates the appropriate temperature The window also displays the numeric value for the setpoint temperature 2 The To Process temperature is always displayed unless a button has been pressed If there is a probe error the display will show three dashes 3 When the water temperature in the chiller is above approximately 100 F the...

Page 36: ... fails to follow all procedures outlined in this manual an unsafe condition can develop resulting in damage to the unit or personal injury B UNIT SHUT DOWN 1 To shut down the unit without disconnecting from the process a Move the ON OFF switch to the off position 2 To shut down the unit and disconnect from the process a Move the ON OFF switch to the off position b Disconnect all process lines WARN...

Page 37: ...1 1277 Email service Temptek com 4 0 TROUBLESHOOTING 4 1 Unit Will Not Start 4 2 Compressor Hums But Will Not Start 4 3 Shuts Off On High Pressure 4 4 Shuts Off On Low Pressure 4 5 Compressor Shuts Off On Internal Overload 4 6 Low or No Process Pressure or Water Flow 4 7 Cooling Capacity Inadequate 4 8 Sensor 4 9 Pumps 4 10 Chiller Controller ...

Page 38: ...coming into the plant call the local power company D Loose terminals Power off and follow all company lock out tag out procedure before tightening terminals 4 3 SHUTS OFF ON HIGH PRESSURE LIMIT Note Units may be equipped with either an adjustable or non adjustable fixed high pressure switch If the refrigerant pressure exceeds the setting of the adjustable switch it must be manually reset when the ...

Page 39: ...n the pressure rises above the cut in pressure If this does not occur contact the Manufacturer s service department for instructions If the unit low pressure limit is activated three 3 consecutive times during start up the unit will lock out and will not be allowed to start When the chiller control locks out due to low pressure after three 3 attempts there is a problem that must be resolved before...

Page 40: ...d for leaks and recharged by a refrigeration serviceman E Improperly set low pressure switch Have a refrigeration serviceman reset control or replace if defective F Restriction in the liquid line 1 Clogged filter drier Check for pressure or temperature drop and have drier core replaced by a refrigeration serviceman 2 Liquid line valve or suction valve on compressor is partially closed Open fully 3...

Page 41: ... sensor is a solid state temperature transducer which converts temperature input to proportional current output B To quickly test for a defective probe switch connections between the defective probe and a probe known to be working properly A defective sensor will display a in the display window on the instrument control Please note that will also display when process temperatures are above 100 F 4...

Page 42: ...instrument is not returned you will need to pay for it E OUT OF WARRANTY SERVICE INCIDENT 1 Call Service at 317 887 0729 for diagnostic assistance 2 If a control instrument is determined to be at fault you will be referred to the instrument manufacturer you have 3 options a Purchase a new instrument as a replacement b Send your instrument back for repair freight prepaid For a nominal fee contact f...

Page 43: ... 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 5 0 MAINTENANCE 5 1 Warranty Service Procedure 5 2 Periodic Preventative Maintenance 5 3 Special Maintenance 5 4 Solenoid Valve Service 5 5 Pump Seal Service 5 6 Checking the Refrigerant Charge 5 7 Proper Cleaning Procedure for Brazed Plate Evaporator ...

Page 44: ...nty the Manufacturer will advise on the repair and recommend available service contractors C It is of the utmost importance that you provide the correct model number and serial number of the machine in question This will allow the Service Department to obtain the correct manufacturing records which will help to properly troubleshoot the problem and obtain the proper replacement parts when they are...

Page 45: ...277 Email service Temptek com 5 3 SPECIAL MAINTENANCE A Any service of the refrigeration system must be accomplished by a certified refrigeration technician 1 Addition of compressor oil 2 Addition of refrigerant 3 Repair of a refrigerant leak 4 Adjustment of super heat 5 Changing of filter drier or drier core 6 Repair of a refrigeration solenoid ...

Page 46: ...se debris from poor make up water quality is in the valve mechanism 2 To replace the coil disengage power from the unit following all lock out tag out procedures Remove the wires from the failed coil and remove the coil from the valve stem Install the new coil on the stem and reconnect the wires 3 To service the solenoid valve follow the procedure below a Disengage process operations according to ...

Page 47: ...0 Tons Page 47 TEMPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com Coil and solenoid base sub assembly Body Gasket Valve body Core assembly Core spring Diaphragm spring Diaphragm assembly ...

Page 48: ...s shut off and all pressure relieved 2 Disengage main power supply The operator must verify the proper lockout procedures are followed 3 Access the pump motor by opening or removing any cover panels as necessary figure 5 5B 4 Drain machine The machine can be drained by using the drain valve located on the pump case Drain fluid into a suitable container for reuse or disposal according to manufactur...

Page 49: ... expose the pump seal assembly 10 Remove all seal parts Figure 5 5H Note seal component arrangement to facilitate reassembly 11 Clean motor shaft and lubricate with a mild soap solution 12 Install new stationary seal member in pump casing cavity figure 5 5I The operator must be certain the stationary seal member is fully squared and seated in cavity 13 Slide the rotating member onto lubricated pum...

Page 50: ...p 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com E When the pump seal replacement procedure is complete the operator may restart the unit according the section 3 Stationary member Figure 5 5J Seal members Figure 5 5K Stationary member Figure 5 5I ...

Page 51: ...d by a qualified refrigeration technician 5 7 PROPER CLEANING PROCEDURE FOR BRAZED PLATE EVAPORATORS A The brazed plate evaporator is made of stamped stainless steel plates furnace brazed together with copper based joints The complex geometry of the flow passages promotes turbulent flow which gives high efficiency and reduces fouling by mineral deposits Large solids such as plastic pellets or chun...

Page 52: ... an acid solution reservoir tank Dispose of all back flush fluid according to local codes 4 The cleaning fluid source should have at least 20 psi available If acid cleaning follow the instructions supplied with the acid solution carefully 5 When the procedure is complete reinstall all water lines to original factory orientation Restart the unit and check for proper operation 6 Note This procedure ...

Page 53: ...iller Air Water Cooled 5 40 Tons Page 53 TEMPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 6 0 Components 6 1 Water System 6 2 Refrigeration System 6 3 Options ...

Page 54: ...TER COOLED CONDENSER The water cooled condenser removes heat from the compressed refrigerant gas As the heat is removed the gas condenses into a liquid state still under high pressure Tube in shell condensers are used on 15 30 ton models Tube in tube condensers are used on 5 10 ton models Water regulator valves are used on all models to control the refrigerant head pressure by modulating the conde...

Page 55: ...pacity Units without a digital scroll compressor use a hot gas bypass solenoid valve to reduce the chiller capacity to about 50 J HIGH LOW PRESSURE SWITCH The high and low pressure switches protect the refrigeration system from usage operating conditions Units may be equipped with either an adjustable or non adjustable fixed high and low pressure switches The high pressure switch is factory set an...

Page 56: ...rocess line C PROCESS LINE SHUT OFF VALVES These valves are full size ball valves installed on the to and from process lines at the exit of the chiller These valves can be used to adjust the process flow rate and to shut off the flow rate to isolate the chiller D E STOP BUTTON The Emergency stop button is a mushroom type button which will shut down all chiller operations when engaged E NON FUSED O...

Page 57: ...ir cooled condenser to prevent air borne solids and debris from clogging the condenser Use non restrictive filter material with a MERV rating of 2 3 H REVERSE FLOW PIPING Reverse flow chillers are designed specifically for open circuit processes Notice that the flow circuit remains basically the same but the process acts as the chiller reservoir and gravity returns water to the pump suction System...

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Page 59: ...Electrical Air Cooled 7 6 Typical Electrical Water Cooled 7 7 Typical Physical Air Cooled models 5 tons 7 8 Typical Physical Air cooled models 7 5 10 tons 7 9 Typical Physical Air cooled models 15 20 tons Fan Cooled 7 10 Typical Physical Air cooled models 15 30 tons with Blower 7 11 Typical Physical Air cooled models 5 10 Tons with Remote Condenser 7 12 Typical Physical Air cooled models 15 30 Ton...

Page 60: ...T CONNECTION MAKE UP PORT CONNECTION MAKE UP SOLENOID VALVE LEVEL SWITCH FROM PROCESS PORT CONNECTION CONDENSER WATER IN PORT CONNECTION CONDENSER WATER OUT PORT CONNECTION RESERVOIR TANK EXPANSION VALVE EVAPORATOR SERVICE LID AND FILL PORT REFRIGERANT SIGHT GLASS LIQUID LINE SOLENOID VALVE FILTER DRIER SERVICE VALVE HOT GAS BYPASS VALVE not included onmodels with Digital Scroll Compressors COMPRE...

Page 61: ...TO PROCESS PORT CONNECTION MAKE UP PORT CONNECTION MAKE UP SOLENOID VALVE LEVEL SWITCH FROM PROCESS PORT CONNECTION CONDENSER WATER IN PORT CONNECTION CONDENSER WATER OUT PORT CONNECTION RESERVOIR TANK EXPANSION VALVE EVAPORATOR SERVICE LID AND FILL PORT REFRIGERANT SIGHT GLASS FILTER DRIER SERVICE VALVE HOT GAS BYPASS VALVE not included onmodels with Digital Scroll Compressors COMPRESSOR HEAD PRE...

Page 62: ...model uses single fan COOLANT PUMP TO PROCESS SENSOR PROBE TO PROCESS PORT CONNECTION MAKE UP PORT CONNECTION MAKE UP SOLENOID VALVE LEVEL SWITCH FROM PROCESS PORT CONNECTION RESERVOIR TANK EXPANSION VALVE EVAPORATOR SERVICE LID AND FILL PORT REFRIGERANT SIGHT GLASS LIQUID LINE SOLENOID VALVE FILTER DRIER SERVICE VALVE HOT GAS BYPASS VALVE not included onmodels with Digital Scroll Compressors COMP...

Page 63: ...COOLED CONDENSER w blower COOLANT PUMP TO PROCESS SENSOR PROBE TO PROCESS PORT CONNECTION MAKE UP PORT CONNECTION MAKE UP SOLENOID VALVE LEVEL SWITCH FROM PROCESS PORT CONNECTION RESERVOIR TANK EXPANSION VALVE EVAPORATOR SERVICE LID AND FILL PORT REFRIGERANT SIGHT GLASS LIQUID LINE SOLENOID VALVE FILTER DRIER SERVICE VALVE HOT GAS BYPASS VALVE not included onmodels with Digital Scroll Compressors ...

Page 64: ...Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 7 5 TYPICAL ELECTRICAL SCHEMATIC AIR COOLED MODELS Electrical schematic is presented for illustration purposes only For exact details consult the electrical drawing supplied with your machine ...

Page 65: ...top 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 7 6 TYPICAL ELECTRICAL SCHEMATIC WATER COOLED MODELS Electrical schematic is presented for illustration purposes only For exact details consult the electrical drawing supplied with your machine ...

Page 66: ...k com 7 7 TYPICAL PHYSICAL AIR COOLED MODELS 5 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 67: ...om 7 8 TYPICAL PHYSICAL AIR COOLED MODELS 7 5 10 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 68: ...9 TYPICAL PHYSICAL AIR COOLED MODELS 15 20 TONS FAN COOLED Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 69: ...0 TYPICAL PHYSICAL AIR COOLED MODELS 15 30 TONS WITH BLOWER Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 70: ...PICAL PHYSICAL AIR COOLED MODELS 5 10 TONS WITH REMOTE CONDENSER Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 71: ...ICAL PHYSICAL AIR COOLED MODELS 15 30 TONS WITH REMOTE CONDENSER Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 72: ...com 7 13 TYPICAL PHYSICAL WATER COOLED MODELS 5 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 73: ...m 7 14 TYPICAL PHYSICAL WATER COOLED MODELS 7 5 10 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 74: ...m 7 15 TYPICAL PHYSICAL WATER COOLED MODELS 15 30 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 75: ...com 7 16 TYPICAL PHYSICAL WATER COOLED MODELS 40 TONS Physical drawings are presented for illustration purposes only Many units are customized to meet unique needs and to include standard and custom options that may require changes to the unit configuration Unit dimensions layout piping locations and piping sizes should be confirmed with the factory for your specific unit ...

Page 76: ... with equipped with fans can not be ducted 13 12 11 10 9 8 7 6 5 4 3 2 1 Item 1 2 3 4 5 6 7 8 9 10 11 12 13 Description Weather cap Screen Flashing to suit Roof curb Plant roof Butterfly with counterbalance Separate duct support from roof Gate control for exhaust air flow Manual chain control Duct to plant heating system Mating collar Chiller air exhaust port Air cooled chiller with blower NOTE TH...

Page 77: ...2 317 887 6352 Fax 317 881 1277 Email service Temptek com 8 0 APPENDIX 8 1 Operations Below 48 F 8 2 Operating with Glycol Antifreeze and with a Setpoint Above 48 F or Below 38 F Ambient 8 3 Refrigerant Pressure Temperature Chart 8 4 Inhibited Propylene Glycol 8 5 Chiller Capacity and Derate Chart Mechanical Schematic ...

Page 78: ...fy proper glycol percentages for freeze protection The ratio shall be according to the chart below Too much glycol can cause capacity and control problems D DO NOT USE AUTOMOTIVE TYPE ANTI FREEZE E Once a satisfactory antifreeze solution is in place the protective devices may be adjusted and the control instrument can be unlocked to allow operation below 48 F Operating or Ambient Temperature 48 70...

Page 79: ... on the refrigeration line H ADJUSTING THE SETPOINT LOCK OUT JUMPER The control instrument has a setpoint lock out jumper This jumper controls whether the user is allowed to reduce the setpoint below 48 F or 9 C If the jumper is in position 1 farthest from the SPL label the user IS NOT ALLOWED to reduce the setpoint below 48 F or 9 C If the jumper is in position 2 closest to the SPL label the user...

Page 80: ...pe antifreeze The Cut Out Cut In Settings for Low Pressure Switches chart below outlines the glycol percentages at various water temperatures D Fluid must be tested with a refractometer to verify proper glycol percentages for freeze protection The ratio shall be according to the Refrigerant Low Pressure Switch Cut Out Cut In Settings chart below Using more glycol than necessary is not recommended ...

Page 81: ...e factory warranty G If your unit is equipped with a non adjustable fixed pressure switch with a factory low limit of 48 F this switch must be replaced with a switch with a lower limit The lower range low pressure switch can be obtained from the factory by calling 317 887 0729 and asking for the service department The model and serial number of your unit is required A qualified refrigeration techn...

Page 82: ...s Portable Chiller Air Water Cooled 5 40 Tons Page 82 TEMPTEK INC 525 East Stop 18 Road Greenwood Indiana 46142 317 887 6352 Fax 317 881 1277 Email service Temptek com 8 3 REFRIGERANT PRESSURE TEMPERATURE CHART ...

Page 83: ... 70 60 50 40 OUTPUT TEMPERATURE F FULL AVAILABLE CAPACITY 8 4 INHIBITED PROPYLENE GLYCOL A To operate liquid chillers below 48 F it is necessary to add inhibited propylene glycol to the circulating system to lower the freeze point and prevent damage to the cooling system Inhibited propylene glycol contains corrosion inhibitors which are compatible with most industrial heat transfer surfaces Inhibi...

Page 84: ...END 2018 Temptek Inc RE 11062018 ...