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NON-CYCLING REFRIGERATED

AIR/GAS DRYERS QPNC 10 to QPNC 50

OPERATOR‘S MANUAL

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Содержание QPNC 10

Страница 1: ...NON CYCLING REFRIGERATED AIR GAS DRYERS QPNC 10 to QPNC 50 OPERATOR S MANUAL ...

Страница 2: ...DATE OF PURCHASE MODEL SERIAL NO Record above information from nameplate Retain this information for future reference ...

Страница 3: ...tions 5 Locating the Dryer 5 Positioning 5 Electrical Connection 5 Connection to the Compressed Air System 6 Dimensions and Technical Data 6 Start Up and Operation 8 Preliminary Controls 8 Starting and Stopping 8 Calibrations 8 Controls 9 Operation 9 Maintenance 10 Maintenance Schedule 10 Cleaning Automatic Condensate Drain Filter 10 Cleaning the Condenser 10 Air Dryer Service Checklist 11 Trouble...

Страница 4: ...eathing Air Other special precautions must also be taken Refer to OSHA 29 CFR 1910 134 DISCLAIMER OF WARRANTY If this unit is used to produce breathing air the special equipment and precautions expressed in OSHA 29 CFR 1910 134 for specifications of the necessary equipment and special precautions to make Breathing Air MUST BE used or any warranties are VOID and manufacturer disclaims any liability...

Страница 5: ...chnical assistance center approved by the manufacturer and insist on the use of original spare parts Failure to comply with the above may cause damage to the machine Before removing the protective guards to perform any maintenance on the machine switch off the electric power supply and discharge the residual pressure inside the unit All work on the unit however slight must be performed by professi...

Страница 6: ...ng 1 READ ALL INSTRUCTIONS FULLY 2 WIRING BREAKERS Wiring breakers and other electrical equipment must conform to local and national electrical codes Do not operate this unit with damaged wiring or after the unit or air handling parts have been dropped or damaged in any manner Notify authorized service facility for examination repair or other adjustments 3 USE SUITABLE PARTS ACCESSORIES Do not use...

Страница 7: ...Ensure that the operator can see the whole machine from the control panel and can check for the presence of unauthorized persons in the machine s vicinity ELECTRICAL CONNECTION 1 Check that the supply voltage is the same as the value indicated on the machine s identification plate 2 Check the condition of the line leads and ensure that there is an efficient earth ground lead 3 Dryer must be wired ...

Страница 8: ...CONDENSATE PIPE DIMENSIONS AND TECHNICAL DATA FIGURE 7 DIMENSIONS FIGURE 8 CONNECTION 1 ATTENTION Dryer must be wired to the power supply through a fused disconnect switch or circuit breaker in accordance with national and local electrical codes Minimum 24 in 0 6 m on all sides 2 Type L in mm W in mm H in mm QPNC 10 13 78 350 20 09 510 19 05 484 QPNC 15 13 78 350 20 09 510 19 05 484 QPNC 25 13 78 ...

Страница 9: ...Hz V115 60Hz V230 60Hz V115 60Hz V230 60Hz V115 60Hz QPNC 10 41 9 19 0 397 0 180 0 161 120 0 164 122 0 040 30 0 040 30 0 201 150 0 204 152 232 16 QPNC 15 44 1 20 0 463 0 210 0 205 153 0 212 158 0 040 30 0 040 30 0 245 183 0 252 188 232 16 QPNC 25 55 1 25 0 639 0 290 0 312 233 0 306 228 0 040 30 0 040 30 0 353 263 0 346 258 232 16 QPNC 35 59 5 27 0 970 0 440 0 390 291 0 386 288 0 040 30 0 040 30 0 ...

Страница 10: ...peration Figure 10 shows 1 Closing cap 2 Adjusting screw This valve maintains the refrigerant suction pressure in varying load conditions The dryer will run from no load to full load conditions without freeze up The operation of this valve is automatic If the valve needs adjustment turn the adjusting stem clockwise to raise the suction pressure and counterclockwise to lower the suction pressure Th...

Страница 11: ...o the actual cooling load This is achieved by injecting hot gas under the control of the valve 9 This valve keeps the refrigerant pressure constant in the evaporator and therefore keeps the dew point from decreasing below 32 F 0 C in order to prevent the condensate from freezing inside the evaporator The dryer runs completely automatically it is calibrated at the factory for a dew point of 39 F 4 ...

Страница 12: ...TOP button to position 0 OFF 3 4 Turn off the supply by opening the circuit breaker or fused disconnect switch 4 5 Remove the panels 5 6 Remove the stopper 6 7 Remove the filter 7 8 Clean the filter 7 with a jet of air working from inside to outside 9 Install the filter and affix the plug 7 6 10 Close the panels 5 FIGURE 13 MAINTENANCE CLEANING THE CONDENSER The condenser must be cleaned every mon...

Страница 13: ..._______________________ 5 Air out temperature F ________________________________________________________________________________ 6 Air in pressure PSIG __________________________________________________________________________________ 7 Air out pressure PSIG ________________________________________________________________________________ 8 Refrigerant suction pressure when unit is operating PSIG _...

Страница 14: ... The dryer is working under bad conditions for air cooled condenser 1a Clean the condensate drain filter 1b Check the condensate drain 2a Check the flow rate of treated air 2b Check the room temperature 2c Check the air temperature at the dryer inlet 3a Clean the condenser 3b Check the operation and the calibration of the fan cycling press Switch 3c Check the operation of the fan C The compressor ...

Страница 15: ...The motor hums and does not start 1 The line voltage is too low 2 The machine was switched off and on again without leaving enough time for pressure balancing 3 The starting system of the motor is defective 1a Contact the electric power company 2a Wait a few minutes before starting the machine again 3a Check the running and starting relays and condensers if installed F The machine compressor has s...

Страница 16: ...Publication No 2200772355 ...

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