Page 1: Table Of Contents
ENGLISH Code 9828093052 04 MANUAL USE AND MAINTENANCE Edition 02/2018 SILENCED SCREW ROTARY COMPRESSOR UNITS HP 15-20-25-30 KW 11-15-19-22 HP 15-20-25-30 ( ) KW 11-15-19-22 (   (VSD  ): Compressors variable speed READ THIS MANUAL CAREFULLY BEFORE CARRYING OUT ANY OPERATIONS ON THE COMPRESSOR UNIT.
Page 2 ENGLISH MACHINE AND MANUFACTURER IDENTIFICATION DATA 1) Position of the identification plate ADDRESSES OF ASSISTANCE CENTRES In the event of breakdown or malfunction of the machine, switch it off and do not tamper with it. If repairs are needed, apply only to a technical assistance centre approved by the manufacturer and insist on the use of original spare parts. Failure to comply with the above may endanger the safety of the machine.
Page 3: General Characteristics
ENGLISH 1.0 GENERAL CHARACTERISTICS The compressor units use single-stage screw rotary air compressors with oil injection. The system is self-bearing and does not require bolts or other devices to anchor it to the floor. The unit is completely assembled in the factory; the necessary connections for setting it up are: ...
Page 4: Description Of Danger Signals
ENGLISH 5.0 DESCRIPTION OF DANGER SIGNALS FIG. 2 1) FLUID EJECTION 6) HOT PARTS 2) DANGEROUS ELECTRIC 7) MOVING PARTS VOLTAGE 3) AIR NOT FIT FOR BREATHING 8) MOVING PARTS 4) NOISE 9) MACHINE WITH AUTOMATIC START 5) HIGH PRESSURE 10) PURGE EVERY DAY 5.1 DESCRIPTION OF COMPULSORY SIGNALS 11) READ THE USE AND MAINTENANCE...
Page 5: Danger Zones
ENGLISH 6.0 DANGERS ZONES 6.1 DANGERS ZONES FOR COMPRESSOR UNIT Risks present on the whole machine FIG. 3 Cod. 9828093052 04 - Edition 02/2018 - 5...
Page 6: Safety Devices
ENGLISH 6.2 DANGERS ZONES FOR DRIER UNIT AND TANK Risks present on the whole machine FIG. 3A Dryers Series (E) Dryers Series (A) 7.0 SAFETY DEVICES 7.1 SAFETY DEVICES FOR SCREW COMPRESSOR 1) Safety screws 4) Emergency stop button with mechanical seal and rotation release.
Page 7: Position Of Plates
ENGLISH 7.2 SAFETY DEVICES FOR DRIER UNIT AND TANK 1) Earth 4) Overload protector for compressor 2) Fan protection 5) Protective pressure switch cap 3) Relay for compressor (automatic) 6) Safety valve Dryers Series (A) FIG. 5 Dryers Series (E) POSITION OF PLATES 8.1 POSITION OF THE DANGER PLATES FOR COMPRESSOR UNIT The plates fitted on the compressor unit are part of the machine;...
Page 8 ENGLISH 8.2 POSITION OF THE DANGER PLATES FOR DRYER AND TANK The plates fitted on the compressor unit are part of the machine; they have been applied for safety purposes and must not be removed or spoiled for any reason. 1) Dangers plate Cod.
Page 9: Compressor Room
ENGLISH 8.4 POSITION OF THE DATA PLATE FOR DRYER UND TANK FIG. 9 Data plate 9.0 COMPRESSOR ROOM 9.1 FLOOR The floor must be even and of industrial type; the total weight of the machine is shown in the Chap. 13.0 Remember the total weight of the machine when positioning it.
Page 10: Installation
ENGLISH 12.0 INSTALLATION 12.1 POSITIONING After unpacking the equipment and preparing the compressor room, put the machine into position, checking the following items:  ensure that there is sufficient space around the machine to allow maintenance (see Fig. 12). FIG. 12 MINIMUM (59 in) PROTECT THE POWER CABLE WITH A SUITABLE...
Page 11: Dimensions And Technical Data
13.0 DIMENSIONS AND TECHNICAL DATA Dimensions (in) Air connection Dimensions (in) Air connection (NPT) HP 15-20-25-30 (NPT) HP 15-20-25-30 kW 11-15-18,5-22 kW 11-15-18,5-22 HP 15-20-25-30 (VSD) HP 15-20-25-30 (VSD) 77,9 35,6 50,3 1” 58,5 35,6 50,3 1” KW 11-15-18,5-22 (VSD) KW 11-15-18,5-22 (VSD) Cod.
Page 12 35,6 74,8 1” KW 11-15-18,5-22 (VSD) KW 11-15-18,5-22 (VSD) Net weight (lb) (Fixed speed compressors) HP 15 - kW 11 HP 20 - kW 15 HP 25 - kW 18,5 HP 30 - kW 22 Weight (lb) with dryer 1279...
Page 13: Machine Illustration
ENGLISH 14.0 MACHINE ILLUSTRATION 14.1 GENERAL LAY-OUT FOR DRYER AND TANK 1 Air suction filter 11 Oil discharge 2 Thermostatic valve 12 Oil tank 3 Oil filter 13 Pressure gauge tank 4 Air-oil cooler 14 Control card 6 Minimum pressure valve 15 Safety valve () 7 Air-oil separator with oil separating filter 16 Water separator drain...
Page 14 ENGLISH 14.2 COMMAND AND CONTROL PANEL BEFORE CARRYING OUT THE OPERATION TEST, READ CAREFULLY AND ACQUIRE A GOOD KNOWLEDGE OF THE COMMAND FUNCTIONS. FIG. 16 1) Control card 2) Emergency stop button with mechanical seal and rotation release 14.3 Graphic controller for fixed compressor and Variable Speed Drive compressor. Introduction The electronic controller has following functions: ...
Page 15 ENGLISH Control panel FIG. 17A Function keys of the controller Reference Designation Function Display Shows icons and operating conditions. Automatic operation symbol LED, Automatic operation Indicates that the regulator is automatically controlling the compressor: the compressor is loaded, unloaded, stopped and restarted depending on the air consumption and the limitations programmed in the regulator.
Page 16 ENGLISH Icons used Status icons Name Icon Description Stopped / Running When the compressor is stopped, the icon stands still. When the compressor is running, the icon is rotating. Compressor status Motor stopped Running unloaded Running loaded Machine control mode Local start / stop Remote start / stop Network control...
Page 17 ENGLISH Input icons Icon Description Icon Description Pressure Digital input Temperature Special protection System icons Icon Description Icon Description Compressor element (LP, HP, ...) Motor Dryer Failure expansion module Network problem Frequency converter General alarm Menu icons Icon Description Icon Description Inputs Event history (saved data)
Page 18 ENGLISH Typical Main screen (2 value lines), fixed speed compressors Typical Main screen (4 value lines), fixed speed compressors Text on figures Compressor Outlet Element outlet Load, ... (text varies upon the compressors actual condition) Menu Running hours Flow (only VSD compressors) Section A shows information regarding the compressor operation (e.g.
Page 19 ENGLISH Selection of a main screen view To change between the different screen layouts, select the far right icon in the control icons line (see value lines display icon or chart display icon in section Used icons) and press the Enter key. A screen similar to the one below opens: Select the layout required and press the Enter key.
Page 20 ENGLISH Shut-down visualization In case of shut-down red icon (1) pops up in the lower side of the display as in the picture below in the left side: To check which is the shutdown, highlight the red icon, using the Scroll keys. Press the Enter key and it will appears the Protections menu as in picture above in the right side.
Page 21 ENGLISH In case of the Reset of Main Motor Converter Alarm doesn’t work: - Disconnect power supply for 15min. - Switch on power supply and Reset the controller. If alarm does not disappear contact the customer centre. Warnings and alarms Graphic Fault Trip...
Page 22 ENGLISH Graphic Fault Trip Fault text Warning Alarm Cause of problem Controller alarm number locked code Try to start the again a number of times. NOTE! timeout Repeated runs may heat the motor to a level where the resistance Rs and Rr are increased.
Page 23 ENGLISH Outputs menu Function: to call up information regarding the actual status of some outputs. Procedure: starting from the Main screen (see Main screen), move the cursor to the action button Menu and press the Enter key, move the cursor to the Outputs icon (see below). Press the Enter key.
Page 24 ENGLISH Control mode selection Function: to select the control mode, i.e. whether the compressor is in local control, remote control or controlled via a local area network (LAN). Procedure: starting from the main screen, make sure the action button Menu (1) is selected: Next, use the scroll buttons to go to the Status icons (see Main screen) and select the Regulation icon (2).
Page 25 ENGLISH Overview Overview Running Hours Real Time hours Reset Example for service level (A): the figures at the left are the programmed service intervals. For Service interval A, the programmed number of running hours is 4000 hours (upper row, green) and the programmed number of real time hours is 8760 hours, which corresponds to one year (second row, blue).
Page 26 ENGLISH Variable speed drive compressors Regolation Setpoint 1 Indirect stop level 1 Direct stop level 1 Setpoint 2 Modify To modify the settings, move the cursor to the action button Modify and press the Enter key. The first line of the screen is highlighted. Use the Scroll keys to highlight the setting to be modified and press the Enter key. Following screen appears: The upper and lower limit of the setting is shown in grey;...
Page 27 ENGLISH Modifying general setting Function: to display and modify a number of general settings. Procedure: starting from the Main screen (see Main screen), move the cursor to the action button Menu and press the Enter key. Using the Scroll keys, move the cursor to the Settings icon (see below). Press the Enter key.
Page 28 ENGLISH Terminology Term Explanation ARAVF Automatic restart after voltage failure. Power recovery time Is the period within which the voltage must be restored to have an automatic restart. Is accessible if the automatic restart is activated. To activate the automatic restart function, consult your supplier. Restart delay This parameter allows to program that not all compressors are restarted at the same time after a power failure (ARAVF active).
Page 29: Ordinary Maintenance To Be Done By The User
ENGLISH 15.0 ORDINARY MAINTENANCE TO BE DONE BY THE USER BEFORE CARRYING OUT ANY MAINTENANCE IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. The maintenance jobs described in this chapter may be carried out by the user. The more complex maintenance jobs which require professionally skilled personnel are listed in the chaper on GENERAL ROUTINE MAINTENANCE.
Page 30 ENGLISH 15.3 DRAINING CONDENSATE FROM THE OIL TANK If the compressor work cycle contemplates long pauses during which the machine cools down, a certain amount of condensate will gather in the oil tank. This happens, for example, when stopping overnight or at weekends. The condensate must be drained off every 50 hours or every week.
Page 31 ENGLISH BEFORE CARRYING OUT ANY MAINTENANCE IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. 15.5 CLEANING THE FILTERING PANEL (Compressors VSD) - Switch off the machine with pushbutton Ref. 1 Fig. 18: in this way the machine stops after idle time running. - Turn off the disconnect switch, Ref.
Page 32 ENGLISH 15.7 CHECKING THE AUTOMATIC CONDENSATION EMPTYING FOR COMPRESSOR AND DRYER (IF AVAILABLE) BEFORE CARRYING OUT ANY MAINTENANCE IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. The automatic condensation drain Rif.
Page 33 ENGLISH 15.9 CHECKING THE AUTOMATIC CONDENSATION EMPTYING (WITHOUT DRYER ) BEFORE CARRYING OUT ANY MAINTENANCE IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. The automatic and manual condensation emptying should be checked every day ( Ref. 2 Fig. 20A). Proceed as follows: - Close the tap Ref.
Page 34 ENGLISH 15.10 CLEANING THE CONDENSER BATTERY (ON THE DRYER IF FITTED) BEFORE CARRYING OUT ANY MAINTENANCE IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. The condenser must be cleaned every month. Proceed as follows: - Switch off the machine with pushbutton Ref.
Page 35: Periods Of Inactivity
ENGLISH 16.0 PERIODS OF INACTIVITY If the machine has to remain inactive for a long period: - Close the ball valve Ref. 1 Fig. 22. - Open the panel Ref. 2 and Ref. 7 Fig. 22. - Depressurise the dryer by pressing the "TEST" condensation emptying button (for about 10-20 seconds) Ref. 3 or the WSD by pressing test Ref.
Page 36: List Of Spare Parts For Routine Maintenance
   1089955668 Air filter     2202260065 Air filter     2202715000  ) Please contact your Quincy compressor dealer for oil replacement.  FIG. 23 36 - Edition 02/2018 Cod. 9828093052 04 -...
Page 37: Trouble-Shooting And Emergency Remedies
ENGLISH 19.0 TROUBLE-SHOOTING AND EMERGENCY REMEDIES N.B. OPERATIONS MARKED   MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL APPROVED THE MANUFACTURER ALL WORK MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL. BEFORE CARRYNG OUT ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS. 19.1 –...
Page 38 ENGLISH 19.2 TROUBLE-SHOOTING AND EMERGENCY REMEDIES FOR DRYER ALL WORK MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL. BEFORE CARRYNG OUT ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS. N.B. OPERATIONS MARKED   MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED PERSONNEL APPROVED THE MANUFACTURER FAULT FOUND POSSIBLE CAUSES...
Page 39: Starting Up
ENGLISH 20.0 STARTING UP BEFORE CARRYING OUT ANY OPERATION ON THE MACHINE, ENSURE THAT THE ELECTRIC POWER SUPPLY HAS BEEN DISCONNECTED. 20.1 PREPARING FOR SETTING UP After checking everything as indicated in Chap. 12.0, (installation) follow the instructions 20.2 Preliminary checks Check the oil level Ref.
Page 40 ENGLISH 20.3 CHECK THE DIRECTION OF ROTATION - Check that all fixed guards are in their correct position. - Connect the control board to the power supply with the automatic circuit-breaker switch of the line Rif. 1 Fig. 25. - Check the direction of rotation (following the arrow on the motor Rif. 3 Fig. 25). By pressing the “Start” button Rif. 2 Fig. 25, followed immediately by the emergency stop Rif.
Page 41: General Ordinary Maintenance Requires Trained Personnel
ENGLISH 21.0 GENERAL ORDINARY MAINTENANCE REQUIRES TRAINED PERSONNEL BEFORE CARRYING OUT ANY MAINTENANCE JOBS IT IS OBLIGATORY TO STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS. MAINTENANCE SCHEDULE These maintenance intervals are recommended for work environments that are not dusty and are will ventilated. For particularly dusty environments, double the frequency of controls.
Page 42 ENGLISH 22.0 REPLACING OIL BEFORE CARRYING OUT ANY MAINTENANCE JOBS IT IS MANDATORY STOP THE MACHINE AND DISCONNECT IT FROM THE POWER MAINS AND FROM THE COMPRESSED AIR DISTRIBUTION NETWORK. Oil changing is an important operation for the compressor: if the lubrication of the bearings is not efficient, the compressor life time will be reduced.. The oil must be changed when the machine is still warm, that is immediately after stopping it.
Page 43: Oleopneumatic Diagram
ENGLISH 24.0 OLEOPNEUMATIC DIAGRAM 100 Inlet air filter (filter element) 302 Refrigerant compressor 101 Inlet valve 303 Condenser 102 Oil-injected screw element 304 Fan 103 Air/oil receiver 305 Refrigerant filter-dryer 104 Pressure gauge 306 Capillary tube 105 Safety valve 308 Electronic drain 106 Oil separator 311 Hot gas bypass valve 107 Minimum pressure valve...
Page 44: Calibrations For Dryer
ENGLISH 25.0 CALIBRACION FOR DRYER HOT BYPASS VALVE N.B. Tthese valves are calibrated at the factory. A different dew point (from rated) may be related to different cause than HGBP. 1) Closing cap 2) Adjusting screw WORKING PRESSURES AND TEMPERATURES OF R134a / R404a / R410a SUCTION SIDE OF REFRIGERATION COMPRESSOR Evaporat.

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