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Quincy Oil-injected screw compressors QGS 10, QGS 15, QGS 20S Instruction book Original instructions Copyright notice Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.
Instruction book Table of contents Safety precautions......................6 Safety icons..........................6 General safety precautions....................6 Safety precautions during installation................7 Safety precautions during operation..................8 Safety precautions during maintenance or repair.............. 9 Dismantling and disposal......................11 General description...................... 12 Introduction..........................12 Air flow.............................
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Instruction book Warning............................. 31 Shutdown..........................32 Service warning........................35 Remote control........................35 Scrolling through screens....................36 3.10 Calling up/ modifying pressure band settings..............36 3.11 Calling up running hours.......................37 3.12 Calling up Software release....................38 3.13 Calling up Bluetooth pairing/ discovery mode..............39 3.14 Advanced menu.........................
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Instruction book Dryer control panel ......................61 Digital dryer controller....................... 62 Maintenance........................68 Preventive maintenance schedule..................68 Drive motor ..........................69 Oil specifications........................70 Oil, filter and separator change ..................70 C/G filter change........................72 Storage after installation....................74 Service kits..........................74 Adjustments and servicing procedures..............76 Air filter............................76 Coolers.............................
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Instruction book Instructions for use...................... 87 Guidelines for inspection.....................88 Pressure equipment directives................... 89 Declaration of conformity.................... 90 2920 7113 42...
Instruction book Safety precautions Safety icons Danger: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Warning: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Notice: Indicates a potential situation which, if not avoided, might result in property damage or in an undesirable result or state.
Instruction book Safety precautions for the connectivity module It is important to follow all regulations regarding the use of radio equipment, in particular regarding the possibility of radio frequency (RF) interference. Please follow the safety advice given below carefully. • Respect restrictions on the use of radio equipment in fuel depots, chemical plants or other explosive environments.
Instruction book machines shall take adequate precautions to ensure that there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to the start equipment. • Air-cooled machines must be installed in such a way that an adequate flow of cooling air is available and that the exhausted air does not recirculate to the compressor air inlet or cooling air inlet.
Instruction book On machines without bodywork, wear ear protection in the vicinity of the machine. • People staying in environments or rooms where the sound pressure level reaches or exceeds 80 dB(A) shall wear ear protectors. • Periodically check that: •...
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Instruction book • Close the compressor air outlet valve and depressurize the compressor before connecting or disconnecting a pipe. • Before removing any pressurized component, effectively isolate the machine from all sources of pressure and relieve the entire system of pressure. See section Maintenance. •...
Instruction book These precautions apply to machinery processing or consuming air or inert gas. Processing of any other gas requires additional safety precautions typical to the application which are not included herein. Some precautions are general and cover several machine types and equipment; hence some statements may not apply to your machine.
Tank-mounted model QGS 10, QGS 15, QGS 20S tank-mounted units are supplied with an air receiver of 270 l (71.28 US gal / 59.40 Imp gal / 9.45 cu.ft) or 500 l (132 US gal / 110 Imp gal / 17.50 cu.ft).
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Instruction book Figure 2: Front view, tank-mounted with dryer Reference Description Electric cabinet Controller Emergency stop button Air outlet Air receiver Manual condensate drain Dryer Dew point indicator (only on units with dryer) Figure 3: Front open view, tank-mounted 2920 7113 42...
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Instruction book Reference Description Oil cooler Oil filter Oil separator Oil separator tank Figure 4: Rear open view, tank-mounted Reference Description Compressor element Air filter 2920 7113 42...
Instruction book Air flow Without dryer Figure 5: Tank-mounted Air drawn through filter (AF) and open inlet valve (IV) into compressor element (E) is compressed. Compressed air and oil flow into oil separator/tank (OT). The air is discharged via minimum pressure valve (Vp) towards the air outlet (AO).
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Instruction book With dryer Figure 6: Air flow, Tank-mounted with dryer Air drawn through filter (AF) and open inlet valve (IV) into compressor element (E) is compressed. Compressed air and oil flow into oil separator/tank (OT). The air is discharged via minimum pressure valve (Vp), air receiver (AR) and air dryer (DR) towards the air outlet (AO).
Instruction book Air pressure in the oil separator tank (OT) forces the oil from the tank to compressor element (E) via oil cooler (Co) and oil filter (OF). Compressed air and oil flow into oil separator/tank (OT) where most of the oil is separated from the air by centrifugal action. The remaining oil is removed by oil separator (OS) and returns to the oil circuit via a separate line.
Instruction book Figure 10: With dryer The cooling system of the version with dryer comprises oil cooler (Co), air receiver (AR) and fan (FN). The dryer (DR) has a separate cooling fan and an automatic condensate drain (see also section Air dryer).
Instruction book • Unloader (UA), including inlet valve (IV) and unloading valve (UV). • Loading solenoid valve (Y1). • The controller that regulates the compressor based on the pressure settings and readings of the pressure sensor. Loading As long as the working pressure is below the preset maximum value, the solenoid valve is energized, allowing control air to the unloader: the inlet valve is completely open and the compressor will run fully loaded (100% output).
Instruction book Electrical system The electrical system comprises the following components: Figure 13: Electric cubicle UL (DOL) Figure 14: Electric cubicle UL (YD) 2920 7113 42...
Instruction book Reference Description Primary fuse, transformer of the control circuit F2-3 Fuses Motor overload relay Delta contactor Line contactor Star contactor Transformer Terminal block of the control circuit Terminal block, voltage change of the motor (only on tri-voltage units) Electrical diagram Diagram number Model description...
Instruction book Figure 16: Safety valve on the compressor Reference Description Function To protect the air outlet system if the outlet Safety valve pressure exceeds the operning pressure of the valve. Air dryer Figure 17: Air dryer 2920 7113 42...
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Instruction book Figure 18: Air dryer Wet compressed air enters the dryer and is further cooled by the outgoing, dried air (2). Moisture in the incoming air condenses. The air then flows through heat exchanger (1) where refrigerant evaporates, withdrawing heat from the air. The cold air then flows through condensate trap (4) which separates condensate from the air.
Instruction book Controller Controller functions Figure 19: Infologic² Controller Introduction The controller has the following functions: • Controlling the unit • Protecting the unit • Monitoring components subject to service • Automatic restart after voltage failure (ARAVF) • Integrated connectivity (Bluetooth 4.2, Wi-Fi 802.11 b/g/n or Ethernet RJ45) Automatic control of the unit The controller maintains the net pressure between programmable limits by automatically loading and unloading the unit.
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Instruction book Protecting the unit Shutdown If the outlet element temperature exceeds the programmed shutdown level, the unit will be stopped. This will be indicated on the display of the controller. The unit will also be stopped in case of overload of the drive motor. Air-cooled units will also be stopped in the event of overload of the fan motor Warning: Before remedying, consult the safety precautions.
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Instruction book If the function is activated and provided the regulator was in the automatic operation mode, the unit will automatically restart if the supply voltage to the module is restored. The ARAVF label shall be attached near to the controller. Figure 20: ARAVF label The ARAVF label is attached on the side panel, next to the controller, with the goal of warning users of the risks linked to the function.
Instruction book Control panel Figure 21: Control panel Reference Designation Function Shows the unit operating condition and a number of Display icons to navigate through the menu. Flashes in case of a shutdown, Warning sign is lit in case of a warning condition.
Instruction book Icons used Status icons Icon Description Motor stopped Running unloaded Running loaded On: Remote Machine Control Mode, active: compressor can start from Bluetooth or via external switch if wired. Automatic Restart After Voltage Failure, active Emergency stop Main motor Element outlet temperature Units of pressure, outlet Units of temperature, outlet...
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Instruction book Icon Description Multiply value x1000 Value in hours Value in seconds Fixed: Week timer, active Blinking: Waiting Fixed: LAN cable connected Blinking: LAN cable not connected Bluetooth connection: appears only when controller is paired to the app through Bluetooth. Wi-Fi signal 100% Wi-Fi signal 75% Wi-Fi signal 50%...
Instruction book Main screen When the voltage is switched on, the first screen is a test screen. The next screen is the Main screen, shown automatically: The Main screen shows: • The unit status by means of pictographs • The air outlet pressure •...
Instruction book Figure 22: Main screen with temperature outlet warning The related pictograph will appear flashing with temperature unit °C / °F icon. It remains possible to scroll through other screens, using the Scroll buttons up and down (6 and 8) to check the actual status of other parameters.
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Instruction book Figure 23: Main screen with temperature outlet shutdown The related pictograph will appear flashing with temperature unit °C / °F icon. Press Scroll buttons (6-8) until the actual compressor element temperature appears. The screen shows that the temperature at the outlet of the compressor element is 117 ˚C. •...
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Instruction book The related pictograph will appear flashing. Error pressure/temperature sensor In case of error of the outlet pressure sensor (PT20) or temperature sensor (TT90), compressor will be shutdown. The following screen will appear: Figure 25: Error on pressure and temperature sensor Compressor outlet pressure too high If the outlet pressure of the compressor exceeds the shutdown level (factory setting 1.5bar / 22psi over the maximum pressure of compressor) the compressor will be shutdown, alarm LED (2) will...
Instruction book Motor overload In the event of motor overload, the compressor will be shutdown, alarm LED (2) will flash, automatic operation LED (4) will go out and the following screen will appear: Figure 27: Main screen with shutdown indication, motor overload •...
Instruction book Scrolling through screens Scroll buttons (6-8) can be used to scroll through all screens. For most screens, the unit of measurement and the related pictograph are shown together with the screen number. Example: The screen shows the screen number P.SEt, the unit used bar and the related symbol for pressure unit.
Instruction book Figure 29: Starting/loading pressure changing • The pictograph shows starting/loading pressure and the value starts blinking. • Press Scroll button (6-8) to modify the starting/loading pressure and press enter button (9) to confirm. The unloading pressure on secondary row will update accordingly to have optimal pressure range.
Instruction book • Press Scroll button (6-8) until HoUr is shown on the display. Figure 31: Running hours screen • Press Enter button (9). Figure 32: Running hours value The screen shows the unit used (x1000 hrs) and the value (11.25): the running hours of the unit are 11250 hours.
Instruction book Figure 33: Software release screen • Press Enter button (9) to show the software release version. 3.13 Calling up Bluetooth pairing/ discovery mode For Bluetooth connectivity a paring with the device is necessary, see section Connectivity. This function is also a way to select the pair to the correct unit when multiple units are in the proximity. During the Bluetooth pairing, the controller generates and stores a random code.
Instruction book 3.14 Advanced menu To enter inside the advanced menu Press buttons (6) and (8) together. Advanced menu consists by following functions: Controller screens Designation Function See section Calling-up Service SEru Service mode mode See section Calling-up Screen tESt Screen Test Test See section Calling-up Factory...
Instruction book Figure 35: Test screen 3.17 Calling up factory reset This function restores the controller to original machine settings for pressure settings/units/starting. This parameter can only be modified after entering a password. Consult your supplier to use this function. Starting from the Main screen: •...
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Instruction book In order to have an overview of all the features available in the App we refer to the APP guidelines document which can be found in the media section of the App. Unit configuration and control are made possible by Bluetooth communication with digital signature. To connect the unit to the cloud for monitoring purposes, a Wi-Fi connection or alternatively an Ethernet network with access to Internet is required.
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Instruction book Machine events and notification The smartphone application sends real time push notifications in case of alarms or shutdown. This allows you to always be up to date on the status of the machine. In case you want more information, you can always press on the pop-up message in your Smartphone and you will redirected to the App.
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Instruction book When the Timer schedule is active, the related pictograph will be shown on the controller display. Figure 36: Main screen with timer schedule active 2920 7113 42...
Instruction book Installation Installation proposal Outdoor/altitude operation If the compressor is installed outdoors or if the ambient temperature can be below 0˚C (32˚F), precautions must be taken. In this case, and also if operating at high altitude, consult your supplier. Moving/lifting Figure 37: Transport by a pallet truck Danger: For transport with a fork truck, use the openings in the frame.
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Instruction book Figure 38: Lifting instructions Reference Description Spacer bars to protect the body Lifting straps: • Minimum length: 6 meter • ISO 4878 It is recommended to position the lifting straps this way. 2920 7113 42...
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Instruction book Installation proposal Figure 39: Installation proposal Reference Description Main power switch for the compressor (three-phase). Power supply cables need to be protected by suitable conduit. Main power switch for the dryer (single-phase). Power supply cables need to be protected by suitable conduit. Compressor Dryer 1.
Instruction book P = Absolute pressure at the compressor outlet in bar = Free air delivery of the compressor in l/s 3. Install the inlet grids and ventilation fan in such a way that any recirculation of cooling air to the compressor or dryer is avoided.
Instruction book Electrical connections Danger: Always disconnect the power supply before working on the electrical circuit! General instructions 1. Install an isolating switch near the compressor. 2. Check the fuses and the setting of overload relay, see section Settings for overload relay and fuses.
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Instruction book Figure 40: 208/230/460V 60Hz 1. Adjust the motor overload (FM1) setting. 2920 7113 42...
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Instruction book 2. Control transformer (T1) – Move the primary connection from 230V to the desired voltage. 3. Replace the control fuses (F1) 10.3 x 38mm with the ones provided (see further). Use 1A fuses for 460V or 2A for 208V 4.
Instruction book Terminal bridges (1) can be removed using a pair of pliers. Additional terminal bridges are provided with the compressor. Voltage stickers: Locate the yellow voltage labels provided with the compressor. Replace the existing label with the appropriate voltage label (208V, 230V or 460V). Pictographs Reference Description...
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Instruction book Reference Description Warning: hot parts With all bodywork panels in place, push the start button. • If the sheet is pulled downwards: • Stop the compressor immediately and switch off the voltage. • Reverse two incoming electric lines and repeat the previous step. •...
Instruction book Operating instructions Initial start-up Safety Warning: The operator must apply all relevant safety precautions. General preparation Figure 44: Air receiver port Figure 45: Condensate drain 2920 7113 42...
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Instruction book Figure 46: Condensate drain valve on air receiver 1. Consult the installation instructions (see Installation proposal). 2. Check that the electrical connections correspond to the local codes. The installation must be earthed and protected against short circuits by fuses in all phases. An isolating switch must be installed near the compressor.
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Instruction book Start-up Figure 48: Start-up sheet (5) 1. Affix sheet (5) (explaining the procedure for checking the motor rotation direction) to the cooling air outlet of the compressor. Consult section Dimension drawings. 2. Switch on the voltage. Press the start button. 3.
Instruction book Starting Starting the compressor Figure 49: Automatic drain Figure 50: Condensate drain valve on air receiver Figure 51: Dew point temperature gauge 2920 7113 42...
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Instruction book Figure 52: Position of oil sight glass and filler plug Figure 53: Control panel 1. Before starting, check the oil level in accordance with step 5. 2. Switch on the voltage. 3. Open air outlet valve. 4. Push the start button (7). On compressors with a star-delta starter, the drive motor switches over from star to delta 4 seconds after starting.
Instruction book 5. Regularly check the oil level. 10 to 15 minutes after stopping, the sight glass (SG) should be between 1/4 and 3/4 full. If the oil level is too low, stop the compressor, depressurise the oil system by unscrewing oil filler plug (FC) one turn and wait a few minutes.
Instruction book 2. Close air outlet valve and switch off the voltage to the compressor. 3. Open condensate drain valve (4) of the air receiver for a few seconds to drain any condensate and then close the valve. Danger: The air dryer and air receiver remain under pressure. Danger: The integrated filter (if installed) remains pressurised.
Instruction book 1. On Full-Feature units: move switch (3) of the dryer to position 0. Stop the compressor and close the air outlet valve (2). 2. Switch off the voltage and disconnect the compressor from the mains. 3. Depressurize the compressor by opening plug (3) one turn. Push condensate manual drain (Dm) for a few seconds to release any condensate from the dryer.
Instruction book Digital dryer controller Identification Figure 58: Front panel of the controller Reference Description Alarm icon Refrigerant compressor icon Fan icon PDP (dewpoint) temperature Unit (°C or °F) Alarm LED Not used SET button UP button DOWN button Back to previous screen Menu Icons Icon...
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Instruction book Fault messages Flashing fault message Description Remedy Fan control probe failure Replace the probe. Dewpoint temperature probe Replace the probe. failure Refer to the fault and remedies Pressure dewpoint too high section. Refer to the fault and remedies Pressure dewpoint too low section.
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Instruction book Error Possible Display Flashing error code Operations description cause Fan control Fan control Replace the probe probe failed. probe. defective. Dewpoint Dewpoint temperature Replace the temperature probe probe. probe failed. defective. Flow rate or inlet Check flow temperature rate or inlet High exceeding the...
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Instruction book Resetting the maintenance warning Figure 59: Front panel of the controller To reset the maintenance warning, follow steps 1 to 12: 1. The display is flashing between standard view (dewpoint) and Maintenance required (SE) alarm. 2. Push and hold buttons SET (8) and DOWN (10) to enter the menu. 3.
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Instruction book 12. Then “rL” is fixed and “°C” blinks on display for about 10 seconds. The service alarm is now reset. Setting the service interval To set the service interval, follow steps 1 to 9: 1. PDP is showing standard view. 2.
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Instruction book The new service interval is now set. 2920 7113 42...
Instruction book Maintenance Preventive maintenance schedule Warning Warning: Before carrying out any maintenance, repair work or adjustments, proceed as follows: • Stop the compressor. • Switch off the voltage and open the isolating switch. • Close the air outlet valve and open the manual condensate drain valves. •...
Instruction book Running Period (1) Action hours (1) “ “ Install the drain wear kit. “ “ Have the safety valve tested. Have the operation of sensors, electrical interlockings and “ “ components checked. “ “ Have the temperature shutdown switch tested. Inspect the air receiver.
Instruction book Oil specifications Warning: Avoid mixing lubricants of different brands or types as they may not be compatible and the oil mix may have inferior properties. A label, indicating the type of oil filled ex factory, is stuck on the air receiver/oil tank. It is strongly advised to use the recommended lubricants.
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Instruction book Procedure Figure 60: Location of oil filter and separator 1. Run the compressor until warm. Stop the compressor, close the air outlet valve and switch off the voltage. See Stopping. 2. Depressurize the air receiver by opening drain valve (8). 3.
Instruction book Reference Description Air hose (from air receiver) Ball valve (to isolate the filters and dryer) Pre-filter (G type) head G filter housing. This coarse filter cleans the incoming air to the refrigerant dryer from dust and oil mist. Post filter (C type) head C filter housing.
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Instruction book Also a full range of extensively tested lubricants, suitable for your specific needs is available to keep the compressor in excellent condition. Consult the Spare Parts List for part numbers. 2920 7113 42...
Instruction book Adjustments and servicing procedures Air filter Replacing the air filter Figure 65: Air filter 1. Stop the compressor, close the air outlet valve and switch off the voltage. 2. Remove the front panel and the top panel of the compressor housing. 3.
Instruction book Coolers 1. Keep the oil cooler (Co) clean to maintain the cooling efficiency. 2. Stop the compressor, close the air outlet valve and switch off the voltage. Remove any dirt from the oil cooler (Co) with a fibre brush. Safety valve Location Figure 66: Condensate drain valve...
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Instruction book Figure 67: Oil filler plug Testing The valve can be tested on a separate compressed air line. 1. Before removing the safety valve, stop the compressor (see section Stopping), close the air outlet valve and switch off the voltage. 2.
Instruction book Belt set exchange and tensioning Location of parts Danger: Read the warning in section Preventive maintenance. Checking the belt tension 1. Stop the compressor, close the air outlet valve and switch off the voltage. 2. Remove the front door and the internal panel. 3.
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Instruction book Adjusting the tension of the drive belts 1. Stop the compressor, close the air outlet valve and switch off the voltage. 2. Remove the front door, the internal panel, the top cover and the pulley protection. 3. Loosen the 4 bolts (2) by one turn. 4.
Instruction book Problem solving For the location of the components, see sections: • Introduction • Air dryer • Operating instructions Attention Warning: Use only authorized parts. Any damage or malfunction caused by the use of unauthorized parts is not covered by Warranty or Product Liability. Apply all relevant Safety precautions during maintenance or repair.
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Instruction book Condition Fault Remedy Inlet valve (IV) does not fully Have valve checked open Oil separator (OS) clogged Replace separator element Safety valves leaking Replace valves Check for cooling air restriction or improve ventilation of Insufficient cooling air or Air outlet temperature above compressor room.
Instruction book Technical data Electric cable size Attention Danger: The voltage on the compressor terminals must not deviate more than 10% from the nominal voltage. It is however highly recommended to keep the voltage drop over the supply cables at nominal current below 5% of the nominal voltage.
Instruction book Compressor data 7.5kW / 10HP 11kW / Compressor type 15HP 15kW / 20HP Frequency Maximum (unloading) pressure UL units 10.8 12.5 Maximum (unloading) pressure UL units psig Nominal working pressure 10.3 12.1 Nominal working pressure psig Set-point, thermostatic valve ˚C Set-point, thermostatic valve ˚F...
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Instruction book Oil capacity US gal 0.84 Sound pressure level (ISO 2151 - 2004) db(A) Table 2: 11kW / 15HP 15kW / 20HP Temperature of air leaving outlet valve (ambient ˚C +) approx., tank mounted units. ˚F ˚C Temperature of air leaving outlet valve (ambient +) approx., floor mounted units.
Instruction book Instructions for use Oil separator vessel The vessel can contain pressurized air. This can be potentially dangerous if the equipment is misused. This vessel must only be used as a compressed air/oil separator tank and must be operated within the limits specified on the data plate.
Instruction book Guidelines for inspection Guidelines On the Declaration 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 Manufacturer is part of the documentation that is supplied with this compressor.
Instruction book Pressure equipment directives Components subject to Pressure Equipment Directive (PED) Components subject to 2014/68/EU PED or Pressure Equipment (Safety) Regulations 2016 - S.I. 2016/1105 greater than or equal to category II: Overall rating The compressors conform to PED smaller than category II. 2920 7113 42...
Instruction book Declaration of conformity Figure 68: Typical example of a Declaration of Conformity document Contact address: C. Aria C. S.R.L. Via Selva Maiolo, 5/7 Montecchio, Maggiore, Vicenza Italy Applicable directives Standards used On the Declaration of Conformity / Declaration by the Manufacturer, the harmonized and/or other standards that have been used for the design are shown and/or referred to.
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