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Quincy Compressor QOF 2 Instruction Manual Download Page 35

Section VI - Adjustments and servicing procedures

 

Quincy Compressor

 

31

The purpose of cleaning the cooling channels of a scroll element is to prevent the 

cooling channels to silt up and as such reduce the cooling efficiency. A reduced cooling 

efficiency can lead towards a premature compressor element failure.

Procedure:

1.  Stop the compressor and switch off the power.
2.  Close the air outlet valve and depressurise the compressor.

3.  Remove the fan duct:

• Unscrew the 3 bolts (1).

• Remove clip (2) (if applicable).

• Remove fan duct (3).

4.  Clean cooling channels:

• Remove dust from the cooling channels (1) by means of air jet (see next figure).

• Clean the fan duct (2).

5.  Reassemble the fan duct:

• Put the fan duct in place.

• Fit the 3 bolts and the clip.

The unit is now again ready for use.

Summary of Contents for QOF 2

Page 1: ...ual This manual contains important safety information and should be made available to all personnel who operate and or maintain this product Carefully read this manual before attempting to operate or...

Page 2: ......

Page 3: ...aking out of operation 22 Section V Preventive maintenance Preventive maintenance schedule 23 Service kits 23 Disposal of used material 25 Section VI Adjustments and servicing procedures Pressure swit...

Page 4: ...Table of Contents Quincy Compressor Section IX Instructions for use 43 Section X Guidelines for inspection 44 Section XI Pressure equipment directives 45 Section XII Declaration of conformity 46...

Page 5: ...eath All electrical work must be performed by a qualified electrician CAUTION This symbol identifies hot surfaces which could result in personal injury or property damage IMPORTANT Throughout this man...

Page 6: ...g Do not depend on check valves to hold system pressure A properly sized pressure relief valve must be installed in the discharge piping ahead upstream of any shutoff valve block valve heat exchanger...

Page 7: ...d in this manual however possible product updates and changes may have occurred since this printing Quincy Compressor reserves the right to change specifications without incurring any obligation for e...

Page 8: ...ting at 145 PSIG full load pressure or less Standard Warranty Quincy Compressor Seller warrants products of its own manufacture against defects in workmanship and materials under normal use and servic...

Page 9: ...3 US gal 270 l 71 3 US gal or 500 l 132 US gal The 30 l receiver consists of a module with three 10 l 2 64 US gal receivers The 30 l receiver option includes an electronic drain Receiver mounted versi...

Page 10: ...Section II Description 6 Quincy Compressor QOF 5 floor mounted general view QOF 5 with integrated air receivers 3 x 10 l general view...

Page 11: ...h an integrated refrigerant dryer The control panel comprises a pressure gauge an hour meter a start button and a temperature gauge indicating the dew point The compressor is controlled by a pressure...

Page 12: ...QOF 5 with dryer on a 270 l receiver general view Gp Pressure gauge Q1 H1 On off switch with lamp P1 Hour meter AV Outlet valve Dm Manual drain valve Da Automatic drain outlet Gd Dew point gauge ID Re...

Page 13: ...Quincy Compressor 9 AF Inlet air filter AV Outlet valve Ca Air cooler E Compressor element M Motor CV Check valve SV Safety valve Dm Manual drain valve ID Refrigerant dryer TSHH Temperature switch Flo...

Page 14: ...sed air flows to the refrigerant dryer ID where the water vapor condensates by cooling down The water is removed via the integrated water separator 201c and the electronic drain 210 For details on the...

Page 15: ...e The water is removed via an automatic drain Compressed air circuit Compressed air enters heat exchanger 1 and is cooled by the outgoing cold dried air Water in the incoming air starts to condense Th...

Page 16: ...ant as possible to obtain stable operation Fan control switch P therefore stops and starts the condenser cooling fan If under partial or no load the evaporator 2 pressure drops to approximately 2 25 b...

Page 17: ...ncy Compressor 13 Dimension drawings Installation proposal Electrical connections Pictographs Dimension drawings The dimension drawings are available in pdf format on the CD Rom supplied with the comp...

Page 18: ...the grids is 5 m s 16 5 ft s The maximum allowable pressure drop over the cooling air ducts is 30 Pa 0 12 in wc The maximum air temperature at the compressor intake opening is 40 C 104 F Take care th...

Page 19: ...installation must correspond to the applicable codes The mains supply and earthing lines must be of suitable size The installation must be earthed and protected by fuses in each phase Install an isol...

Page 20: ...f overload relay and fuses Pictographs Pictographs Reference Designation 1 Warning the compressor starts and stops automatically Do not perform service when pressurized and when the voltage is on Read...

Page 21: ...re switch while it is depressurized because this can dam age the switch only for compressors controlled by a pressure switch 7 Warning rotating fan Warning safety valve blowing 8 Warning rotating fan...

Page 22: ...ed to an air receiver with a suitable size Initial start up 1 Remove the yellow painted transport brackets E F if applicable Transport brackets on QOF 7 5 2 Close the air outlet valve AV see section I...

Page 23: ...to the outlet grating When the rotation direction is correct the paper will be blown upwards If the direction is wrong stop the compressor immediately and reverse two incoming electric lines A compres...

Page 24: ...ith a built in refrigerant dryer check also the temperature gauge Gd on the control panel to check the dew point Check that condensate is discharged regularly by the automatic drain of the dryer The a...

Page 25: ...open the manual drain valve s Taking out of operation Procedure 1 Stop the compressor and close the air outlet valve 2 Switch off the voltage and disconnect the compressor from the mains 3 Depressuri...

Page 26: ...The local Customer Centre may overrule the specified maintenance schedule especially the service intervals depending on the environmental and working conditions of the compressor NOTICE The longer int...

Page 27: ...ad tested Check tension and condition of the V belt s Every 2 years 5000 Replace the V belt s Replace check valve Every 2 years 5000 8 bar and 116 psi compressors Have the orbiting scroll bearing grea...

Page 28: ...quently Service kits Service kits For overhauling and for preventive maintenance a wide range of service kits is available Service kits comprise all parts required for servicing the component and offe...

Page 29: ...nes the operating pressure of the compressor The stopping and starting pressures are the opening and closing pressures of the switch NOTICE Adjustments may only be carried out when the switch is press...

Page 30: ...ure adjustable between 5 8 bar e 84 psig and 3 bar e 43 5 psig 8 bar 116 psi units the pressure switch is factory adjusted to start the compressor at 6 5 bar e 94 psig and to stop at 7 75 bar e 112 ps...

Page 31: ...Keep the cooler clean to maintain cooling efficiency If necessary remove any dirt with a fibre brush Never use a wire brush or metal objects Next clean by air jet in reverse direction of normal flow...

Page 32: ...open at the specified pressure it must be replaced See section Temperature protection and safety valve settings for the opening pressure of the safety valve WARNING No adjustments are allowed Never r...

Page 33: ...ts and servicing procedures Quincy Compressor 29 3 Remove the front panel 4 Remove the inlet baffle I 5 Loosen screws B 6 Loosen screw C 7 Use slot D to lift the motor plate 8 Install the new belt s i...

Page 34: ...switch shuts down the compressor in case of overheating After cooling down the switch automatically resets itself No adjustment is possible CAUTION When the compressor is stopped due to overheating b...

Page 35: ...re compressor element failure Procedure 1 Stop the compressor and switch off the power 2 Close the air outlet valve and depressurise the compressor 3 Remove the fan duct Unscrew the 3 bolts 1 Remove c...

Page 36: ...re Parts List for part number The outlet pipe set contains two parts The plastic insert 3 The metal outlet pipe 1 Procedure 1 Stop the compressor depressurize and switch off the voltage 2 Loosen the c...

Page 37: ...air work switch off the voltage and close the air outlet valve Local legislation Local legislation may stipulate that Work on the refrigerant circuit of the cooling dryer or on any equipment which inf...

Page 38: ...n or motor protection relay F21 tripped Wait for switch to cool down Replace switch if necessary Reset overload relay F21 Air pressure switch PS out of order Test switch replace if necessary The compr...

Page 39: ...ant Have circuit repaired or recharged Refrigerant compressor does not run See below Evaporator pressure is too high See below Condenser pressure is too high See below Condenser pressure too high or t...

Page 40: ...usly discharging air an water Automatic drain out of order Have the drain checked Replace as necessary Electronic condensate drain inoperative Drain system clogged Clean the filter of the automatic dr...

Page 41: ...rting pressure and stopping pressure See section Pressure switch Gd Dew point temperature Reading approx 2 5 C 35 41 F See section Compressor data P1 Hour meter Reading total running time Q1 H1 On off...

Page 42: ...th regard to the short circuit protection of the starter The cable size used may specify fuses of a lower value Fuse specifications IEC gL gG Fuse specifications CSA HRC Form II UL Class 5 Settings QO...

Page 43: ...rding HRCII C according Class K5 for units without refrigerant dryer and according Class K5 for units with refrigerant dryer respectively Temperature protection and safety valve settings Temperature s...

Page 44: ...nce conditions and limitations Compressor type QOF 2 QOF 2 QOF 3 QOF 3 8 bar 116 psi 10 bar 145 psi 8 bar 116 psi 10 bar 145 psi Maximum working pressure Pack bar e 8 10 8 10 Maximum working pressure...

Page 45: ...king pressure Full Feature bar e 7 75 9 75 7 75 9 75 Maximum working pressure Full Feature psi g 112 141 112 141 Reference working pressure bar e 7 10 7 10 Reference working pressure psi g 100 145 100...

Page 46: ...the tank and must be drained every day to prevent corrosion This may be done manually by opening the drain valve or by means of the automatic drain if fitted to the vessel Nevertheless a weekly check...

Page 47: ...andards that have been used for the design are shown and or referred to The Declaration of Conformity Declaration by the Manufacturer is part of the documentation that is supplied with this compressor...

Page 48: ...o 97 23 EC Pressure Equipment Directive greater than or equal to category II Pressure version Part number Description PED Class 8 bar 0830 1008 54 Safety valve IV 116 psi 0830 1008 49 Safety valve IV...

Page 49: ...Declaration of conformity Quincy Compressor 45 Typical example of a Declaration of Conformity document 1 Contact address International Compressor Distribution NV Boomsesteenweg 957 B 2610 Wilrijk Antw...

Page 50: ...on of Conformity Declaration by the Manufacturer the harmonised and or other standards that have been used for the design are shown and or referred to The Declaration of Conformity Declaration by the...

Page 51: ...s risk and storage charges may be applied at the discretion of Seller Accounts past due shall bear interest at the highest rate lawful to contract for but if there is no limit set by law such interes...

Page 52: ...turned to seller freight prepaid for inspection Seller warrants repaired or replaced parts of its own manufacture against defects in materials and workmanship under normal use and service for ninety 9...

Page 53: ..._________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____...

Page 54: ..._________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____...

Page 55: ......

Page 56: ...2012 Quincy Compressor All Rights Reserved Litho in U S A Quincy Compressor Products 251 937 5900 E mail info quincycompressor com Website www quincycompressor com...

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