Quincy Compressor QOF 200 Instruction Book
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Quincy Compressor QOF 200 Instruction Book

Quincy Compressor QOF 200 Instruction Book

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QOF 200, QOF 250,
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Summary of Contents for Quincy Compressor QOF 200

  • Page 1 QOF 200, QOF 250, QOF 300, QOF 350 Instruction book...

  • Page 3: Copyright Notice

    Quincy QOF 200, QOF 250, QOF 300, QOF 350 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.

  • Page 4: Table Of Contents

    Instruction book Table of contents Additional safety precautions..................5 ........................... 5 AFETY ICONS ......................5 ENERAL SAFETY PRECAUTIONS ................... 6 AFETY PRECAUTIONS DURING INSTALLATION ....................7 AFETY PRECAUTIONS DURING OPERATION ................8 AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR .......................10 ISMANTLING AND DISPOSAL General description......................
  • Page 5 Instruction book ...........................40 EEK TIMER MENU 3.10 ........................41 VENT HISTORY MENU 3.11 ........................42 ACHINE SETTINGS MENU 3.12 ......................45 ONTROLLER SETTINGS MENU 3.13 ..........................48 CCESS LEVEL Installation........................50 ........................50 IMENSION DRAWINGS ........................52 NSTALLATION PROPOSAL ..................55 LECTRIC CABLE SIZE,FUSES AND CABLE LENGTH ........................
  • Page 6 Instruction book ..........................82 IL SPECIFICATIONS Servicing procedures....................83 (AF)..........................83 IR FILTER .......................84 IL AND OIL FILTER CHANGE ..........................85 AFETY VALVES ........................85 OOLERS......Problem solving......................86 Technicaldata........................ 88 ........................88 EADINGS ON DISPLAY ......................89 ETTINGS OF SAFETY VALVES ......................89 ETTINGS FOR OVERLOAD RELAY ........................

  • Page 7: Additional Safety Precautions

    Instruction book Additional safety precautions Safety icons Explanation Danger to life Warning Important note General safety precautions 1. The operator must employ safe working practices and observe all related work safety requirements and regulations. 2. If any of the following statements does not comply with the applicable legislation, the stricter of the two shall apply.

  • Page 8: Safety Precautions During Installation

    Instruction book 9. If compressed air is used in the food industry and more specifically for direct food contact, it is recommended, for optimal safety, to use certified Class 0 compressors in combination with appropriate filtration depending on the application. Please contact your customer center for advice on specific filtration.

  • Page 9: Safety Precautions During Operation

    Instruction book 12. The electrical connections must correspond to the applicable codes. The machines must be earthed and protected against short circuits by fuses in all phases. A lockable power isolating switch must be installed near the compressor. 13. On machines with automatic start/stop system or if the automatic restart function after voltage failure is activated, a sign stating "This machine may start without warning"...

  • Page 10: Safety Precautions During Maintenance Or Repair

    Instruction book 6. Keep all bodywork doors shut during operation. The doors may be opened for short periods only, e.g. to carry out routine checks. Wear ear protectors when opening a door. On machines without bodywork, wear ear protection in the vicinity of the machine. 7.
  • Page 11 Instruction book 3. Use only genuine spare parts for maintenance or repair. The manufacturer will disclaim all damage or injuries caused by the use of non-genuine spare parts. 4. All maintenance work shall only be undertaken when the machine has cooled down. 5.

  • Page 12: Dismantling And Disposal

    Instruction book Also consult following safety precautions: Safety precautions during installation Safety precautions during operation. 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;...

  • Page 13: General Description

    Instruction book General description Introduction General views General view of QOF 200 up to QOF 350 9829 3200 79...
  • Page 14 Instruction book General view of QOF 200 up to QOF 350 Ref. Name Air filter Unload Low-pressure compressor element High-pressure compressor element Electric cabinet Q-Control Touch Emergency stop Gear box Silencer Motor coupling Motor Oil cooler Intercooler Aftercooler 9829 3200 79...
  • Page 15 Instruction book These units are two-stage, electric motor driven screw compressors which deliver oil-free, pulsation-free air. QOF compressors are water-cooled. The compressor is enclosed in a sound-insulated bodywork and includes mainly: • Air filter • Low-pressure compressor element • Intercooler •...

  • Page 16: Air System

    Instruction book Air system Flow diagram Flow diagram of QOF 200 up to QOF 350 compressors 9829 3200 79...
  • Page 17 The cooled air is further compressed in the high-pressure compressor element (Eh) and discharged through the silencer (AS) and aftercooler (Ca). On QOF 200 up to QOF 350, a check valve (CV) is fitted downstream of the silencer. The compressed air leaves the compressor via the air outlet (AO).

  • Page 18: Condensate Drain System

    The condensate traps are connected to a Q-Control Touch regulated drain. Refer to Q-Control Touch regulated drain. Reference Description Solenoid valve Sensor Drain receiver Manual valve On QOF 200 up to QOF 350, the moisture traps are connected to a Q-Control Touch regulated drain. 9829 3200 79...

  • Page 19: Q-Control Touch Regulated Drain

    Instruction book In case of long shutdown, the manual valve (4) and screw plug (5) must be opened to drain the remaining wastewater. Q-Control Touch regulated drain Description The drain consists of a capacitive sensor which is incorporated in the drain collector and of a pilot valve which is placed outside the drain collector.
  • Page 20 Instruction book Reference Description Solenoid valve Sensor Drain receiver Manual valve If the controller detects water in the intercooler or aftercooler drain receiver for too long a period, a shutdown is generated. If water is detected on the integrated dryer drain receiver for too long a period, a warning is generated.

  • Page 21: Cooling System

    Instruction book Cooling system Description Flow diagram of QOF 200 up to QOF 350 compressors 9829 3200 79...
  • Page 22 Instruction book Reference Name Air filter Air outlet Silencer By-pass valve Aftercooler Intercooler Oil cooler Check valve High-pressure compressor element Low-pressure compressor element Moisture trap, aftercooler Moisture trap, intercooler Oil filter Oil pump 9829 3200 79...

  • Page 23: Oil System

    Instruction book Oil system Flow diagram Flow diagram of QOF 200 up to QOF 350 compressors 9829 3200 79...

  • Page 24: Electrical System

    Instruction book Reference Name Air filter Air outlet Silencer By-pass valve Aftercooler Intercooler Oil cooler Check valve High-pressure compressor element Low-pressure compressor element Moisture trap, aftercooler Moisture trap, intercooler Oil filter Oil pump Description Oil is circulated by pump (OP) from the sump of the gear casing through cooler (Co). The oil passes through oil filter (OF) towards the bearings and timing gears.
  • Page 25 Instruction book Reference Description FU1/2/3/4/5 Fuse K21/22/23 Line contactor Overload relay Main transformer Relay X1-X3 Terminal strip Terminal strip 9829 3200 79...

  • Page 26: External Compressor Status Indication

    Instruction book External compressor status indication Warning Stop the compressor and switch off the voltage before connecting external equipment. Consult the Safety precautions. Connections for external compressor status indication Terminal strip (1X7) is fitted with auxiliary contacts for external indication of: Indication Relay Terminals on strip 1X7...

  • Page 27: Q-Control Touch

    Instruction book 3. Q-Control Touch 3.1 Controller Figure 1: Q-Control Touch Introduction The controller has following functions: • Controlling the unit • Protecting the unit • Monitoring components subject to service • Automatic restart after voltage failure (ARAVF) Automatic control of the unit The controller maintains the net pressure between programmable limits by automatically loading and unloading the unit (fixed speed units) or by adapting the motor speed (units with frequency converter).

  • Page 28: Service Warning

    Instruction book Protecting the unit Shutdown Several sensors are provided on the unit. If one o f the measured signals exceeds the programmed shutdown level, the compressor will be stopped. Example: If the element outlet temperature exceeds the programmed shutdown level, the unit will be stopped.

  • Page 29: Control Panel

    Instruction book Control panel Figure 2: Control Panel Parts and functions Reference Designation Function Touchscreen Shows the unit operating condition and a number of icons to navigate through the menu. The screen can be operated by touch. Warning sign Flashes in case of a shut-down, is lit in case of a warning condition.

  • Page 30: Icons Used

    Instruction book Icons used Menu icons Menu Icon Menu Icon Menu Icon Data Status Inputs Outputs Counters Aux. Equipment Converters Parameters Service Service Overview Service Plan Service History Service functions Clean Screen Week Timer Week Remaining Running Time Event History Saved Data 9829 3200 79...

  • Page 31: Status Icons

    Instruction book Menu Icon Menu Icon Menu Icon Machine Alarms Settings Regulation Control Parameters Aux. Equipment Converter(s) Parameters Auto Restart Controller Network Ethernet Settings Settings Settings CAN Settings Localisation Language Date/Time Units User Password Help Information Status icons Icon Description Motor Stopped 9829 3200 79...

  • Page 32: System Icons

    Instruction book Motor Stopped Wait Running Unloaded Manual Unload Running Unloaded Wait Running Loaded Failed to Load Running Loaded Wait Manual Stop Machine Control Mode, Local Machine Control Mode, Remote Machine Control Mode, LAN Automatic Restart After Voltage Failure Week Timer Active System icons Icon Description...

  • Page 33: Input Icons

    Instruction book Antenna 50% Antenna 75% Antenna 100% Change between screens (indication) Energy recovery Element Drain(s) Analogue Output Menu Reset Auto Restart Filter(s) Cooler Valve(s) Power Meter Input icons Icon Description Pressure 9829 3200 79...

  • Page 34: Main Screen

    Instruction book Temperature Special Protection Open Closed This chapter gives a general survey of available icons. Not all icons mentioned in this chapter are applicable to every machine. Main screen Function The Main screen is the screen that is shown automatically when the voltage is switched on. It is switched off automatically after a few minutes when there is no touch input.

  • Page 35: Quick Access Screen

    Instruction book Reference Designation Function Alarm button The alarm button can be tapped to show the current alarms. If an alarm occurs, the icon on the button will be red. Service button The service button can be tapped to show the service information.

  • Page 36: Menu Screen

    Instruction book Function Description Setpoints Several setpoints can be modified by tapping this icon. Control mode The control mode can be changed by tapping this icon. • Local control via start/stop buttons • Remote control via digital input(s) • LAN control via the network. When in Remote or LAN control, the start/stop buttons on the controller will not work.

  • Page 37: Menu Structure

    Instruction book Reference Designation Function Service The service menu contains the Service information. The ‘Clean screen’ function can be used to clean the touchscreen. Week timer Multiple Week timers and a Remaining running time can be set through this menu. Event history In case of an alarm, the Status information of the unit is saved and can be viewed through this menu.

  • Page 38: Data Menu

    Instruction book Data menu Function This screen is used to display the following submenus: • Status • Inputs • Outputs • Counters • Aux. Equipment These submenus can be entered by tapping the icons. Procedure To enter the Data menu screen: 1.

  • Page 39: Inputs Menu

    Instruction book Figure 8: Status menu screen This menu shows the current status of the unit. If an alarm is active, it can be viewed by tapping the alarm message. To reset an alarm, tap the reset button (1). Before remedying, consult the Safety precautions.

  • Page 40: Service Menu

    Instruction book Voltage-free outputs may only be used to control or monitor functional systems. They should NOT be used to control, switch or interrupt safety related circuits. Check the maximum allowed load on the label. Stop the unit and switch off the supply before connecting external equipment. Check the Safety precautions.
  • Page 41 Instruction book Procedure To enter the Service menu screen: 1. Tap the Menu button 2. Tap the Service icon Description Figure 13: Service menu screen Reference Designation Service Service functions (Only visible as advanced user) Clean screen Service menu Tap the Service icon to enter the Service menu. Figure 14: Service menu screen This menu shows the remaining Running Hours and the remaining Real Time Hours until the next service.

  • Page 42: Week Timer Menu

    Instruction book Service functions (Only visible as advanced user) Tap the Service Functions icon to enter the Service Functions menu. Figure 15: Service function screen Depending on the machine, this menu can have a different set of functions. Many of them are password protected, as they are only accessible for authorized personnel.

  • Page 43: Event History Menu

    Instruction book Description Figure 17: Week timer menu screen Reference Designation Function Add or select week If less than 4 weeks are programmed, tap the ‘+’ button to add a week. Remove week Tap to remove a programmed week timer. Activate week timer A selection screen pops up.

  • Page 44: Machine Settings Menu

    Instruction book Reference Designation Saved Data Saved data Tap the Saved Data icon to enter the Saved Data menu. Figure 19: Saved data screen Scroll through the items swiping up and down in this list. The event date and time is shown at the right side of the screen.
  • Page 45 Instruction book Description Reference Designation Alarms menu Regulation menu Control Parameters menu Aux. Equipment Parameters menu Auto Restart menu Alarms menu Tap the Alarms icon to enter the Alarms menu. A list of all alarms is shown. When pressing on one of the items in this list, the warning and/or shutdown levels are shown for this alarm.
  • Page 46 Instruction book When tapping a list item, a selection screen pops up. The user can modify the setting by tapping ‘–’ or ‘+’ and can confirm by tapping ‘V’ or decline by tapping ‘X’. Change a selection When tapping a list item, a selection screen pops up. The user can change the selection by swiping up or down and confirm by tapping ‘V’...

  • Page 47: Controller Settings Menu

    Instruction book Through this menu, the automatic restart can be activated. The activation is password protected. The automatic restart settings can also be changed. Enter a password When tapping a password protected item, a selection screen pops up. The user can enter the password by swiping up or down to select the desired number.
  • Page 48 Instruction book Reference Designation Network Settings menu Localisation menu User Password menu Help menu Information menu Network settings menu Tap the Network Settings icon to enter the Network Settings menu. Ethernet Settings The list of Ethernet Settings is shown. When ethernet is turned off, the settings can be modified. CAN Settings The list of CAN Settings is shown.

  • Page 49: Information Menu

    Instruction book The date and time settings of the controller can be modified through this menu. Units The units displayed can be modified through this menu. Modify a setting When tapping a list item, a selection screen pops up. The user can modify the setting by tapping ‘–’...

  • Page 50: Access Level

    Instruction book This menu shows information about the controller. 3.13 Access level Function Through this pop-up screen the access level settings can be viewed or changed. Procedure The Access Level screen can be viewed or changed by tapping the Access Level button at the upper right corner of the screen.
  • Page 51 Instruction book Service access level Tap the Service access level icon (1) and confirm (2). The screen information bar (1) now shows the current status of the unit instead of the machine serial number. In the service menu, an extra menu item is now available. See Service menu.

  • Page 52: Installation

    Instruction book Installation Dimension drawings Dimension drawing, QOF 200 up to QOF 350 compressor 9829 3200 79...
  • Page 53 Instruction book Reference Name Right side view Front view Motor cooling air inlet Motor cooling + compressor air inlet Compressor air inlet Motor cooling air outlet 4 slotted holes designed to pull, lifting is not allowed Opening for transportation Left side view Cooling water outlet Compressed air outlet Cooling water in...

  • Page 54: Installation Proposal

    Instruction book Installation proposal Compressor room example Installation proposal 9829 3200 79...
  • Page 55 Instruction book Minimum free area to be reserved. Ventilation proposal. Description The compressor must only be moved or lifted as described in the section Operation introduction. 1. Install the compressor on a level floor suitable for taking its weight. The recommended minimum distance between the top of the body and the ceiling is 1200 mm (47 in).
  • Page 56 Instruction book Air consumption divided by compressor free air Correction factor C delivery 0.10 0.15 0.20 0.25 0.20 0.15 0.10 4. The inlet grids and ventilation fan should be installed in such a way that any recirculation of cooling air to the compressor is avoided. The maximum air velocity through the grids is 5 m/s (16.5 ft/s).

  • Page 57: Electric Cable Size,Fuses And Cable Length

    Instruction book Electric cable size, fuses and cable length General Local regulations remain applicable if they are stricter than the values proposed below. The voltage drop must not exceed 10 % of the nominal voltage. It may be necessary to use cables with a larger size than those stated to comply with this requirement.

  • Page 58: Electric Connection

    Attention For the selection of the correct cables, refer to: Electric cable size, fuses and cable length Electric connections Electric connections for compressors QOF 200 up to QOF 350 Text on figures Reference Text on figure Customer’s installation Compressor motor...

  • Page 59: Quality Of Safety Components

    Instruction book Quality of safety components When installing a remote emergency button or a motor contactor, the following B10d values are advised: • Emergency stop button: 500 000 • Main contactor: 933 333 Cooling water requirements General Cooling water needs to fulfill requirements in order to avoid problems of scaling, fouling, corrosion or bacterial growth.
  • Page 60 Instruction book Reference Description Machine Heat exchanger Cooling tower Make up water Blowdown Standard Quincy specification • the application: • standard (max water temperature 65°C / 149°F at the outlet) • Energy Recovery (water temperature up to 95°C / 203°F) Water quality A full instruction for handling cooling water data is available at Quincy.
  • Page 61 Instruction book Parameter Unit Single Pass Single Pass Recirculating Closed Closed (65°C / (95°C / (65°C / 149°F) System System 149°F) 203°F) (65°C / (95°C / 149°F) 203°F) Ammonium < 0.5 < 0.5 < 0.5 < 0.5 < 0.5 Suspended <...
  • Page 62 Instruction book The pH is calculated by using : = (9.3 + A + B) - (C + D) Symbol Calculation log(TDS) - 1) / 10 13.12 x log(°C+273) + 34.55 log(Ca ) - 0.4 (Ca expressed as ppm CaCO log(M-Alkalinity) (M-Alkalinity expressed as ppm CaCO RSI and chloride limitation Single Pass system...
  • Page 63 Instruction book Recirculating system, with cooling tower Chloride Water condition Maximum 65°C / 149°F limit RSI<3.9 200 ppm Very high scale formation Water cannot be used. 4.0<RSI<5.5 200 ppm High scale formation Regular control and descaling operation necessary. Not recommended for plate heat exchangers 5.6<RSI<6.2 350 ppm...

  • Page 64: General Pictographs

    Instruction book Chloride Water condition Maximum 65°C / 149°F and limit 95°C / 203°F 9.1<RSI<11 200 ppm Very strong corrosion Regular control necessary. Use of corrosion inhibitor recommended RSI>11 200 ppm Very strong corrosion Water cannot be used. General pictographs Pictographs Reference Name...

  • Page 65: Pictographs

    Instruction book Pictographs Control panel Reference Designation Function Touchscreen Shows the compressor operating condition and a number of icons to navigate through the menu. The screen can be operated by touch. Warning sign Flashes in case of a shut-down, is lit in case of a warning condition.
  • Page 66 Instruction book Other locations Reference Description Automatic condensate drain Automatic condensate drain for optional oil/water separator (type OSD) Manual condensate drain Stop the compressor before maintenance or repair Warning: under tension Read Instruction book before starting the compressor Switch off the voltage and depressurize the compressor before maintenance or repair Before connecting the compressor electrically, consult the Instruction book for the motor rotation direction Torques for steel (Fe) or brass (CuZn) bolts...

  • Page 67: Operating Instructions

    Instruction book Operating instructions Initial start-up Safety precautions The operator must apply all relevant Safety precautions. Ambient conditions / altitude opeartion Refer to Limitations for the limits of ambient conditions and altitude operation. If the compressor is operated beyond these limits, precautions must be taken. If this is the case, consult Quincy . Moving/lifting In order not to damage the frame, the compressor must be moved either by a lift truck or by using lifting equipment as described below.
  • Page 68 (1 and 2). Transport fixtures on the gear casing side in QOF 200 up to QOF 350 On QOF 200 up to QOF 350, a transport support (1) is fitted to the gear casing. Remove the support. 9829 3200 79...
  • Page 69 Remove support (1) on the gear casing side. On QOF 200 up to QOF 350, remove supports (1) on the cooler block. Silica gel bags Position of silica gel bags on QOF 200 up to QOF 350 Remove flange (1) and take out the silica gel bags.
  • Page 70 Instruction book Preparation of cooling water system on QOF compressors Water drain plugs, coolers of QOF 200 up to QOF 350 Step Action Fit the water drain plugs (DP2 up to DP6) that are attached to the water pipe of one of the compressor elements (El and Eh) in a plastic bag.
  • Page 71 Instruction book Electrical system Electric cabinet of QOF 200 up to QOF 350 Step Action Check that the electrical connections correspond to the local codes. The installation must be earthed and protected by fuses in all phases. An isolating switch must be fitted.
  • Page 72 8. Stop the compressor and check the oil level. On QOF 200 up to QOF 350, the oil level after stopping must be in the middle of the sight-glass (in the case of longer standstill, the oil level in the sight-glass may increase).

  • Page 73: Before Starting

    Oil system components, QOF 200 up to QOF 350 On QOF 200 up to QOF 350, the oil level must be in the middle of the sight-glass (SG) after stopping (in the case of longer standstill, the oil level may increase in the sight-glass).
  • Page 74 Instruction book Drain connections on QOF 200 up to QOF 350 Reference Description Compressed air outlet Automatic drain Water inlet Water outlet Open the water inlet valve and outlet valve (customer's installation). On QOF compressors, opening of the water outlet valve can be overlooked if, after previous operation, the setting of this valve has not been disturbed.

  • Page 75: Starting

    Instruction book Starting Warning The operator must apply all relevant Safety precautions. On Full-Feature compressors, switch on the voltage 4 hours before starting in order to energize the crankcase heater of the refrigerant compressor. Control panel Reference Designation Function Touchscreen Shows the compressor operating condition and a number of icons to navigate through the menu.
  • Page 76 Instruction book Procedure Step Action Press the start button. The compressor starts running in unloaded condition. The operation sign (4) lights up. On water-cooled compressors, regulate the cooling water flow with the compressor running loaded. Adjust the water flow to obtain the most suitable air temperature at the outlet of the compressor elements.

  • Page 77: During Operation

    Instruction book During operation Warning The operator must apply all relevant Safety precautions. The operator should immediately stop the machine in case of oil leaks internally in the machine as well as externally and consult a competent technician to resolve the cause. The machine should not be restarted before the problem has been remedied.

  • Page 78: Checking The Display

    Instruction book 1. Check the readings on the display. 2. On Full-Feature compressors, regularly check the pressure dew-point on the display of the control panel. The pressure dew-point will deviate from nominal if the air inlet conditions or volume differ from nominal. If the compressor is stopped, it may start automatically.

  • Page 79: Stopping

    Instruction book Reference Designation Function Voltage sign Indicates that the voltage is switched on. Stop button This button stops the compressor. Start button This button starts the compressor. The operation sign (4) lights up. The controller is operative. 1. Regularly check the display for readings and messages. Normally, the main display is shown.

  • Page 80: Taking Out Of Operation

    Instruction book Reference Designation Function Start button This button starts the compressor. The operation sign (4) lights up. The controller is operative. Procedure Frequently stopping the compressor using the emergency stop button may damage the compressor. Only use the emergency stop button in case of emergency. Step Action Press stop button (6).

  • Page 81: Maintenance

    Instruction book Maintenance Preventive maintenance schedule Safety precautions • Before starting any maintenance or repairs, stop the compressor. • Depressurize the air system as follows: • Close the air outlet valve. • Press the emergency stop button. • On compressors equipped with Electronic Water Drains (EWD), press the test buttons on top of the electronic water drains.

  • Page 82: Regular Checks

    Instruction book Regular checks The following checks should be carried out regularly to ensure safe operation and long service life. Depending on the environmental and working conditions of the compressor, the local Quincy Service center may overrule the standard maintenance schedule; always check if in doubt.
  • Page 83 Instruction book Activities Level A Level B Level C Take service readings (air, oil, water temperature and pressure) Check cooler functions (approach temperature) and clean if necessary Change intercooler condensate check valve Check intercooler blowdown valve Check for air, water and oil leakage Check critical bolt/coupling connections Check operation of safety valves Check for presence of water in lube oil...

  • Page 84: Motor Greasing

    Instruction book Activities Level A Level B Level C Inspect and operate the dryer bypass valves (open/close position) Motor greasing Warning Stop the compressor and switch off the voltage while following the LOTO procedure (Lock Out - Tag Out) before greasing. The operator must apply all relevant “Safety precautions”.

  • Page 85: Servicing Procedures

    Instruction book Servicing procedures Air filter (AF) Location of the air filter Location of air filter Procedure Step Action Stop the compressor and switch off the voltage to the compressor. Remove the air filter cover and remove the filter element. Clean the cover.

  • Page 86: Oil And Oil Filter Change

    Remove the oil filters (OF). Clean the filter seats, oil the gaskets on the new filters and screw the filters into place until the gaskets contact the seats. Then tighten by hand. On QOF 200 up to QOF 350 compressors, fill the compressor sump to the middle of the oil level sight-glass (SG).

  • Page 87: Safety Valves

    Instruction book Step Action Switch on the voltage. Unlock the emergency stop button and reset the oil and oil filter service warnings. Run the compressor for a few minutes. Stop the compressor. Check the oil level. After stopping, the level must be in the middle of sight-glass (SG). After a longer standstill, the level may rise.

  • Page 88: Problem Solving

    Instruction book Problem solving 8.1 Problem solving • Before starting any maintenance or repairs, stop the compressor. • Depressurize the air system as follows: • Close the air outlet valve. • On compressors equipped with Electronic Water Drains (EWD), press the test buttons on top of the electronic water drains.
  • Page 89 Instruction book Faults and remedies Condition Fault Remedy Compressor starts running, Pressure in air net is above Compressor will load when pressure in air but does not load after a delay pre-set loading pressure net drops to pre-set loading pressure time Loading solenoid valve Check and replace the valve as necessary...

  • Page 90: Technicaldata

    Instruction book Technical data 9.1 Readings Important The readings below are indicative values when operating at reference conditions. Check the section Reference conditions. These values are no rejection limits. In case of doubt, consult Quincy. For the maximum working pressure and the outlet pressure, consult the section Compressor data.

  • Page 91: Settings Of Safety Valves

    Instruction book 9.2 Settings of safety valves Item Opening Opening pressure pressure Low-pressure safety valve(s) for 7 up to 10.4 bar (101.5 up to 3.7 bar(e) 54 psig 151 psi) compressors Low-pressure safety valve(s) for 13 bar (190 psi) compressors 4.5 bar(e) 65 psig High-pressure safety valve(s) for 7 and 8.6 bar (101.5 and 125 9.3 bar(e)

  • Page 92: Limitations

    Instruction book 9.5 Limitations Pressure limitations Item Limit Limit Maximum effective working pressure Compressor Compressor data. data. Maximum cooling water inlet pressure 10 bar(e) 145 psig Temperature limitations Item Limit Limit Maximum air inlet temperature for compressors designed to 40 ˚C 104 ˚F operate at ambient temperatures up to 40 °C (104 °F) Minimum ambient temperature...

  • Page 93: Compressor Data

    The values below are valid at reference conditions. See Reference conditions. The sound pressure level is measured according to ISO 2151: 2004 using ISO 9614-2. 7 bar - 60 Hz compressor Unit QOF 200 QOF 250 QOF 300 QOF 350 Maximum working pressure bar(e)
  • Page 94 Instruction book 8.6 bar - 60 Hz compressor Unit QOF 200 QOF 250 QOF 300 QOF 350 Maximum working pressure bar(e) Maximum working pressure psig Nominal working pressure bar(e) Nominal working pressure psig 101.5 101.5 101.5 101.5 Air temperature at outlet valve, approx., ˚C...
  • Page 95 Instruction book 10.4 bar - 60 Hz compressor Unit QOF 200 QOF 250 QOF 300 QOF 350 Maximum working pressure bar(e) 10.4 10.4 10.4 10.4 Maximum working pressure psig Nominal working pressure bar(e) Nominal working pressure psig 130.5 130.5 130.5 130.5...
  • Page 98 Performance You Demand. Reliability You Trust. www.quincycompressor.com...

This manual is also suitable for:

Qof 250Qof 300Qof 350

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