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Quincy QHD750 Instruction Book

Desiccant air dryers
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Desiccant Air Dryers
QHD750, QHD900, QHD1100, QHD1370, QHD1800, QHD2300,
QHD2800, QHD3600
Instruction book
Revision Number: 00
Performance You Demand. Reliability You Trust.
Date of Publication: 2020-11

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  • Page 1 Desiccant Air Dryers QHD750, QHD900, QHD1100, QHD1370, QHD1800, QHD2300, QHD2800, QHD3600 Instruction book Revision Number: 00 Performance You Demand. Reliability You Trust. Date of Publication: 2020-11...
  • Page 3 Quincy Heatless Regenerative Rental Dryers QHD750, QHD900, QHD1100, QHD1370, QHD1800, QHD2300, QHD2800, QHD3600 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 5: Table Of Contents

    Instruction book Table of contents Safety precautions ....................7 SAFETY ICONS ............................7 GENERAL SAFETY PRECAUTIONS ......................7 SAFETY PRECAUTIONS DURING INSTALLATION ..................8 SAFETY PRECAUTIONS DURING OPERATION ..................9 SAFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR ............10 DISMANTLING AND DISPOSAL.........................12 General description ....................
  • Page 6 Instruction book PIPING .................................76 ELECTRICAL WIRING ..........................77 INSTALLATION OF THE SONIC NOZZLE ....................78 PICTOGRAPHS ............................80 Operating instructions ..................81 INITIAL START-UP ............................81 START-UP ..............................81 DURING OPERATION ..........................82 STOPPING ..............................82 Maintenance ......................83 MAINTENANCE ............................83 SERVICE KITS ............................84 SERVICE AGREEMENTS ...........................84 SERVICE PLAN ............................84 FILLING INSTRUCTIONS ...........................84 PRECAUTIONS BEFORE STORAGE ......................86...

  • Page 7: Safety Precautions

    Instruction book Safety precautions Safety icons Explanation Danger for life Warning Important note General safety precautions General precautions 1. The dryers are designed for for normal indoor use. 2. The operator must employ safe working practices and observe all related work safety requirements and regulations.

  • Page 8: Safety Precautions During Installation

    Instruction book Safety precautions during installation All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer.

  • Page 9: Safety Precautions During Operation

    Instruction book 17. Safety valves (if equipped) are sized for fire contingencies only. If the maximum pressure of the compressor is higher than the maximum allowed working pressure of the dryer a full flow safety valve must be installed between the compressor and the dryer in order to avoid overpressure on the dryer. The set pressure of the full flow safety valve must be equal or lower than the maximum allowed working pressure of the dryer.

  • Page 10: Safety Precautions During Maintenance Or Repair

    Instruction book Also consult following safety precautions: Safety precautions during installation Safety precautions during maintenance. 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 11 Instruction book  Do not overfill the dryer when replacing desiccant. 9829 2151 14...

  • 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 description The dryers are built to remove moisture from compressed air for industrial purposes. All units are designed for indoor use. Main parts of the dryer: Front view of QHD750 9829 2151 14...
  • Page 14 Instruction book Back view of QHD750 Front view of QHD900 9829 2151 14...
  • Page 15 Instruction book Back view of QHD900 Front view of QHD1100 9829 2151 14...
  • Page 16 Instruction book Back view of QHD1100 Front view of QHD1370 9829 2151 14...
  • Page 17 Instruction book Back view of QHD1370 Front view of QHD1800 9829 2151 14...
  • Page 18 Instruction book Back view of QHD1800 Front view of QHD2300 9829 2151 14...
  • Page 19 Instruction book Back view of QHD2300 Front view of QHD2800 9829 2151 14...
  • Page 20 Instruction book Back view of QHD2800 Front view of QHD3600 9829 2151 14...
  • Page 21 Instruction book Back view of QHD3600 Reference Name Tower A Airlogic controller Pneumatic actuator Air outlet Dessicant inlet Tower B Dessicant Removal Air inlet Silencers Automatic control of the dryer The controller maintains the pressure dewpoint between programmable limits automatically by defining the switching time.
  • Page 22  The pressure dewpoint exceeds a programmed value.  The pressure status in the dryer vessels is not correct. Automatic restart after voltage failure For dryers leaving the factory, this function is made inactive. If desired, the function can be activated. Consult Quincy. 9829 2151 14...

  • Page 23: Air Circuit

    Instruction book Air circuit Flow diagram Flow diagram Text on figures Description Water 9829 2151 14...
  • Page 24 Instruction book Description Drain Vent line Mechanical link Signal air Signal electric Enclosure (10) Electric energy (11) Vessel A (12) Vessel B (13) (14) Sonic nozzle (15) Dryer (16) Air net (17) Outlet (18) Inlet (19) Compressor Description Wet compressed air enters the system and flows to the bottom of one of the towers (A or B) via valve (V1) or (V2).

  • Page 25: Regeneration Circuit

    Instruction book Regeneration circuit Flow diagram Flow diagram Description The wet desiccant beads are dried in the regeneration stage. The tower is depressurized via blow-off valve (V3 or V4). A small portion of the dried air flows via nozzle (114) to the tower to be regenerated. The air is expanded to atmospheric pressure and flows downwards through the desiccant beads.

  • Page 26: Shifting Towers

    Instruction book Shifting towers Flow diagram Flow diagram Description The operation cycle of the dryers is repetitive and is controlled by the regulator and a PDP- sensor. While the desiccant in the first tower dries the compressed air, the desiccant in the second tower is being regenerated and vice versa.

  • Page 27: Operating Cycles

    For working applications below 4.5 bar(e) (65.3 psig) special provisions are to be taken on the dryer selection (consult Quincy). The display shows which cycle steps the towers are working in, making it easy to follow the operation. The...

  • Page 28: Airlogic Graphic Regulator

    Instruction book Airlogic graphic regulator Airlogic graphic regulator Control panel The Airlogic regulator automatically controls and protects the dryer, i.e.:  keeping the pressure dew-point stable.  monitoring pressures, temperatures and digital switches to ensure safe operation, and stopping the dryer whenever necessary.

  • Page 29: Control Panel

    Instruction book Control panel Airlogic regulator Reference Designation Function Display Shows the dryer operating condition and a number of icons to navigate through the menu. Pictograph Automatic operation Pictograph General alarm General alarm LED Flashes if a shut down warning condition exists. Pictograph Service Service LED...

  • Page 30: Icons Used

    Instruction book Icons used Status icons Name Icon Description When the dryer is stopped, the icon stands still. Stopped/Running When the dryer is running, the icon is rotating. Motor stopped Dryer status Running Purge and Intermediate states Running Vacuum Control Local start/stop Machine control mode Remote start/stop...
  • Page 31 Instruction book Name Icon Description Value lines display icon Main screen display Chart display icon No communication / network problem General icons Not valid Input icons Description Icon Pressure Temperature Digital input Special protection System icons Description Icon Dryer element Frequency converter Motor Network problem...
  • Page 32 Instruction book Menu icons Description Icon Inputs Outputs Alarms (Warnings, shutdowns) Counters Test Settings Converter(s) Service Saved data Access key/User password Navigation arrows Description Icon Down 9829 2151 14...

  • Page 33: Main Screen

    Instruction book Main screen Control panel Text on figure Scroll keys Enter key Escape key Function The Main screen shows the status of the dryer operation and is the gateway to all functions implemented in the controller. The Main screen is the screen that is shown automatically when the voltage is switched on and one of the keys is pushed.
  • Page 34 Instruction book Text on figure Inlet pressure Flow Vacuum control, shutdown,.(text varies upon the dryers actual condition) Menu ES, (text varies upon the dryers actual condition) Text on figure Inlet pressure Flow Off, Shutdown, (text varies upon the dryers actual condition) Menu Discharge pressure Element outlet...
  • Page 35 Instruction book  Optional icons These icons are only shown if their corresponding function is activated (e.g. week timer, automatic restart after voltage failure, etc.)  Pop up icons These icons pop up if an abnormal condition occurs (warnings, shutdowns, service,...). To call up more information about the icons shown, select the icon concerned using the scroll keys and press the enter key.

  • Page 36: Calling Up Menus

    Instruction book 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 Icons used) and press the Enter key. A screen similar to the one below opens: Select the layout required and press the Enter key.
  • Page 37 Instruction book  To go to the Menu screen, select Menu, using the Scroll keys  Press the Enter key to select the menu. Following screen appears:  The screen shows a number of icons. Each icon indicates a menu item. By default, the Pressure Settings (Regulation) icon is selected.

  • Page 38: Inputs Menu

    Instruction book Inputs menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, inputs Function  To display the actual value of the measured data (analog inputs) and the status of the digital inputs (e.g. emergency stop contact, motor overload relay, etc.). ...
  • Page 39 Instruction book Text on figure Menu Regulation  Using the scroll keys, move the cursor to the inputs icon (see above, section Menu icon)  Press the enter key, a screen similar to the one below appears: Text on figure Inlet Discharge pressure Inlet pressure...
  • Page 40 Instruction book  The screen shows a list of all inputs with their corresponding icons and readings.  If an input is in warning or shutdown, the original icon is replaced by the warning or shutdown icon respectively (i.e. the Stop icon and the Warning icon in the screen shown above). A small chart icon, shown below an item in the list means this input signal is shown on the chart at the main screen.
  • Page 41 Instruction book Select Yes to remove or No to quit the current action. In a similar way, another input signal can be highlighted and selected as Main Chart signal: 1. Set as main chart signal 9829 2151 14...

  • Page 42: Outputs Menu

    Instruction book Outputs menu Control panel Menu icon, outputs Function To call up information regarding the actually measured data and the status of some inputs such as the motor over load protection. Procedure Starting from the Main screen (see Main screen): ...
  • Page 43 Instruction book  Move the cursor to the out puts icon (see above, section Menu icon, using the scroll keys(1)  Press the enter key (2), a screen similar to the one below appears: Text on figure Outputs Modulating Valve Gas ballast Automatic Operation General warning...

  • Page 44: Counters

    Instruction book Counters Control panel Text on figure Scroll keys Enter key Escape key Menu icon, counters Function To call up:  The running hours  The number of motor starts  The number of hours that the regulator has been powered up ...
  • Page 45 Instruction book Text on figure Menu Regulation  Using the scroll keys, move the cursor to the counters icon (see above, section Menu icon)  Press the enter key, following screen appears: Text on figure Counters Running hours Motor starts Load relay VSD 1-20 % rpm in % (the percentage of the time during which the motor speed was between 1 and 20...

  • Page 46: Control Mode Selection

    Instruction book Control mode selection Control panel Text on figure Scroll keys Enter key Escape key Function To select the control mode, i.e. whether the dryer is in local control, remote control or controlled via a local area network (LAN). Procedure Starting from the main screen, make sure the button Menu (iv) is selected: 9829 2151 14...
  • Page 47 Instruction book Next, use the scroll buttons to go to the regulation icon (ii) and press the enter button: There are 3 possibilities:  Local control  Remote control  LAN (network) control After selecting the required regulation mode, press the enter button on the regulator to confirm your selection.

  • Page 48: Service Menu

    Instruction book 3.10 Service menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Service Function  To reset the service plans which are carried out.  To check when the next service plans are to be carried out. ...
  • Page 49 Instruction book  Move the cursor to the action button Menu and press the Enter key. Following screen appears:  Using the Scroll keys, move the cursor to the Service icon (see above, section Menu icon).  Press the Enter key. Following screen appears: Text on figure Service Overview...
  • Page 50 Instruction book Overview Text on figure 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) and the programmed number of real time hours is 8760 hours, which corresponds to one year (second row).
  • Page 51 Instruction book Text on figure Service plan Level Running hours Real time hours Modify Modifying a service plan Dependant on the operating conditions, it can be necessary to modify the service intervals. (By default the service plan in Airlogic® regulator is for normal application and needs to be changed when running in medium or harsh applications).
  • Page 52 Instruction book Next Service Text on figure Next service Level Running hours Actual In the example above, the A Service level is programmed at 4000 running hours, of which 0 hours have passed. History The History screen shows a list of all service actions done in the past, sorted by date. The date at the top is the most recent service action.

  • Page 53: Modifying The Setpoint

    Instruction book 3.11 Modifying the setpoint Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Setpoint Function On dryers with a frequency converter driven main motor, it is possible to program two different setpoints. This menu is also used to select the active setpoint. Procedure Starting from the Main screen, ...
  • Page 54 Instruction book Text on figure Menu Regulation  Activate the menu by pressing the enter key. A screen similar to the one below appears: Text on figure Regulation setpoint 1 Indirect stop level 1 setpoint Indirect stop level 2 Modify ...
  • Page 55 Instruction book  The first line of the screen is highlighted. Use the Scroll keys (1) to highlight the setting to be modified and press the Enter key (2). Following screen appears: The upper and lower limit of the setting is shown in grey, the actual setting is shown in black. Use the key of the Scroll keys to modify the settings as required and press the Enter key to accept.

  • Page 56: Event History Menu

    Instruction book 3.12 Event history menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Event History Function To call up the last shut down and last emergency stop data. Procedure Starting from the Main screen, ...

  • Page 57: Modifying General Settings

    Instruction book  Using the Scroll keys, move the cursor to the Event History icon (see above, section Menu icon)  The list of last shut down and emergency stop cases is shown.  Scroll through the items to select the desired shut down or emergency stop event. ...
  • Page 58 Instruction book Function To display and modify a number of settings. Procedure Starting from the Main screen,  Move the cursor to the action button Menu and press the Enter key. Following screen appears:  Next, move the cursor to the Settings icon (see above, section menu icon).using the Scroll keys. ...
  • Page 59 Instruction book Example: Selecting the General Settings icon gives the possibility to change e.g. the language, the date, the date format, etc.: Text on figure General Language used Time Date Date format Modify  To modify, select the Modify button using the Scroll keys and press the Enter key. ...

  • Page 60: Info Menu

    Move the cursor to the action button Menu and press the Enter key. Following screen appears:  Using the Scroll keys, move the cursor to the Info icon (see above, section Menu icon).  Press the Enter key. The Quincy internet address appears on the screen. 9829 2151 14...

  • Page 61: Week Timer Menu

    Instruction book 3.15 Week timer menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Week timer Function  To program time-based start/stop commands for the dryer  To program time-based change-over commands for the net pressure band ...
  • Page 62 Instruction book Text on figure Menu Week Timer  Press the Enter key on the regulator. Following screen appears: Text on figure Week Timer Week Action Schemes Week Cycle Status Week Timer Inactive Remaining Running Time The first item in this list is highlighted in red. Select the item requested and press the Enter key on the regulator to modify.
  • Page 63 Instruction book Text on figure Week Action Scheme 1 Monday Tuesday Wednesday Thursday Friday Saturday Sunday  A new window opens. The Modify action button is selected. Press the enter button on the regulator to create an action. Text on figure Monday Modify ...
  • Page 64 Instruction book Text on figure Monday Actions Remove Start Stop Pressure setpoint 1 Modify  A new window opens. The action is now visible in the first day of the week. Text on figure Monday Start Save Modify  A pop-up window opens. Use the key of Scroll keys to modify the values of the hours.
  • Page 65 Instruction book Text on figure Monday Start Save Modify  A new pop-up window opens. Use the Scroll keys on the regulator to select the correct actions. Press the Enter key to confirm. Text on figure Monday Are you sure? Save Modify Press the Escape key to leave this window.
  • Page 66 Instruction book Text on figure Week Action Scheme 1 Monday - Start Tuesday Wednesday Thursday Friday Saturday Sunday Press the Escape key on the regulator to leave this screen. Programming the week cycle A week cycle is a sequence of 10 weeks. For each week in the cycle, one of the four programmed week schemes can be chosen.
  • Page 67 Instruction book Text on figure Week Cycle Week 1 Week 2 Week 3 Week 4 Modify Press twice the Enter key on the regulator to modify the first week.  A new window opens. Select the action, example: Week Action Scheme 1 Text on figure Week Cycle Week 1...
  • Page 68 Instruction book Text on figure Week Timer Week Action Schemes Week Cycle Status Week Timer Inactive Remaining Running Time  A new window opens. Select Week 1 to set the Week Timer active. Text on figure Week Timer Week Week Timer Inactive Week 1 ...
  • Page 69 Instruction book Text on figure Week Timer Week Action Schemes Week Cycle Status Remaining Running Time  Press the Escape key on the regulator to go to the main Week Timer menu. Select Remaining Running Time from the list and press the Enter key on the regulator to Modify. Text on figure Week Timer Week Action Schemes...

  • Page 70: Test Menu

    Instruction book Text on figure Week Timer Week Action Schemes Remaining Running Time 3.16 Test menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Test 9829 2151 14...
  • Page 71 Instruction book Function To carry out a display test, i.e. to check whether the display and LEDs are still intact. Procedure Starting from the Main screen,  Move the cursor to the action button Menu and press the enter key (2), following screen appears: ...

  • Page 72: User Password Menu

    Instruction book 3.17 User password menu Control panel Text on figure Scroll keys Enter key Escape key Menu icon, Password Function If the password option is activated, it is impossible for not authorized persons to modify any setting. Procedure Starting from the Main screen (see Main screen), ...

  • Page 73: Programmable Settings

    Instruction book  Move the cursor to the Password icon (see above, section Menu icon)  Select Modify using the Scroll keys and press the Enter key. Next, modify the password as required. 3.18 Programmable settings The regulation and safety devices are factory-adjusted to obtain optimum performance of the dryer. No adjustments are required.

  • Page 74: Installation

    Instruction book Installation Dimension drawing Dimension drawings Dyer type Dimesion drawing number QHD750 9829 2151 22 QHD900 9829 2151 27 QHD1100 9829 2151 28 QHD1370 9829 2151 29 QHD1800 9829 2151 30 QHD2300 9829 2151 31 QHD2800 9829 2151 32...

  • Page 75: Installation Proposal

    On UD+ filter (3) a drain tube must be installed. The drain pipe to the drain collector must not dip into the water. For draining of pure condensate water, install an oil/water separator (Consult Quincy). An outlet dust filter type DDp+ (4) (for class 2 for dust, according to ISO8573–1) is installed downstream of the dryer (option).

  • Page 76: Positioning

    Never overload the dryer as this will damage the desiccant. It may be recommended to install the air dryer upstream of the air receiver to prevent overload (e.g. after extending the dry air system). Consult Quincy if in doubt.

  • Page 77: Electrical Wiring

    Instruction book Electrical wiring Description The electrical wiring must comply with the local regulations. The air dryer must be earthed and protected by fuses against short-circuiting.  Before switching on the main power supply, check the voltage requirements in the technical specifications or on the dryer data plate. ...

  • Page 78: Installation Of The Sonic Nozzle

    Instruction book CSA/UL dryers Minimum 2X AWG 19 + AWG 19 Maximum 2X AWG 16 + AWG 16 For more electrical details, refer to the “Appendix 1- Service diagram” of dryers. Installation of the sonic nozzle Description A sonic nozzle is kit is included in the scope of supply of each dryer. It must be installed to protect the desiccant.
  • Page 79 Instruction book Below you can find a schematic drawing to illustrate the best location to install the sonic nozzle. Reference Description Air receiver Common header Bad location (can be bypassed) Good location for the sonic nozzle Consumer Bad location (not the full air flow is covered) Installation example Dryer Filter location...

  • Page 80: Pictographs

    Instruction book Pictographs Explanation of pictographs Reference Description Data plate Warning, heated surface Warning, explosion danger if pressurized (see section 4) Air outlet Air inlet Emergency stop Warning, under tension Warning, exhaust Tightening torques 9829 2151 14...

  • Page 81: Operating Instructions

    Instruction book Operating instructions Initial start-up Description To start up the dryer for the first time or after a long period of standstill, proceed as follows: 1. Open the dryer bypass valves, if installed. 2. Close the air supply towards the PDP-sensor and unplug the PDP-sensor. 3.

  • Page 82: During Operation

    Instruction book  A Sonic nozzle is available to avoid damaging of the desiccant at start up.  If the dryer is started and stopped automatically, precautions must be taken to avoid damaging of the desiccant. Close the external inlet valve in case the compressor needs to be restarted. The air speed in the start-up phase of the compressor may damage the desiccant.

  • Page 83: Maintenance

    Service plan B  Replace the desiccant. In normal working conditions, the lifetime of the desiccant is approximately 5 years. It is recommended to have the desiccant replaced by an Quincy service technician. Waste desiccant treatment according local regulations. ...

  • Page 84: Service Kits

    Airlogic regulator. When reaching a level, a message will appear on the screen. After carrying out all service actions, the interval timers are to be reset using the key "Reset" in menu "Service". Consult your Quincy Customer Centre.
  • Page 85 Instruction book  When replacing desiccant, make sure that the desiccant is disposed of according to the local regulations.  When replacing the desiccant, never use an ejector or similar equipment as this might shatter the beads. The beads must be gravity-fed into the tower. ...

  • Page 86: Precautions Before Storage

    Transportation The purpose of these procedures is to ensure continued protection against corrosion or other damage during transportation. These instructions also apply to units which (in exceptional cases) are to be returned to Quincy. Dryer units  Carry out the storage instructions.
  • Page 87 Instruction book with water, they will pulverize and turn into dust (which leads to a decreased adsorbing capacity and the dryer will lose its functionality).  When storing desiccants of these types, make sure that they are stored in a dry place, preferably indoors (closed room).

  • Page 88: Optional Equipment

    Instruction book Optional equipment Dewpoint meter Description When starting up after a long stand-still period, it is recommended to run the dryer in a fixed cycle for 1 day. Immediately after initial start-up of the dryer or after refilling, it is recommended to isolate the PDP sensor by means of its shut-off valve.

  • Page 89: Filter Option

    Instruction book Filter option Description Text on figure: QCF filter Dryer QPF filter QAF+ filter Inlet filter Outlet filter Customer's installation To protect the desiccant from contaminating fluids or particles, an inlet filter can be mounted upstream of the dryer. On the outlet side of the dryer, a particle filter can be mounted to prevent dust particles, emerging from the desiccant bed, from entering the air net.

  • Page 90: Problem Solving

    Instruction book Problem solving Problem solving Symptom Possible cause Corrective action Poor dewpoint Free water in compressed air inlet Check the condensate separators and drains upstream of the dryer if they are operating correctly Temperature of compressed air is Clean compressor after-cooler too high Working pressure is too low Check outlet pressure of compressor and...
  • Page 91 Instruction book Symptom Possible cause Corrective action Insufficient air Incorrect purge nozzle installed. See symptom Too high purge leaves the dryer consumption Compressor not performing enough Check inlet filters of compressor and check the outlet pressure of the compressor and compare this with the inlet pressure of the dryer Dryer fails to shift Pilot air missing...

  • Page 92: Technical Data

    Ambient temperature 37.7 Ambient relative humidity Limitations Maximum compressed air effective inlet pressure - QHD750 up to QHD3600 - QHD750 up to QHD3600 10.3 Minimum compressed air effective inlet pressure - QHD750 up to QHD3600 - QHD750 up to QHD3600 ˚F...
  • Page 93 Instruction book Performance data QHD750 up to QHD3600 -40 °F Variant Specifications Unit QHD 750 QHD 900 QHD 1100 QHD 1370 Volume flow at dryer inlet refered to absolute 1123 1377 pressure of 1Bar, 20˚C, 0% RH Volume flow at dryer inlet refered to absolute pressure of 1Bar, 20˚C, 0% RH...
  • Page 94 Instruction book -100 °F Variant Specifications Unit QHD 750 QHD 900 QHD 1100 QHD 1370 Volume flow at dryer inlet refered to absolute pressure of 1Bar, 20˚C, 0% RH 1186 Volume flow at dryer inlet refered to absolute pressure of 1Bar, 20˚C, 0% RH Pressure drop over dryer Pressure drop over dryer 0.17...
  • Page 95 Instruction book Design data Unit QHD 750 QHD 900 QHD 1100 QHD 1370 QHD 1800 QHD 2300 QHD 2800 QHD 3600 Specifications Desiccant type -40 °F Variant Activated Alumina -100 °F Variant Molecular Sieve Amount of desiccant per vessel -40 °F Variant 1143 1479 1789...
  • Page 96 Instruction book Refer to calculation program for correct sizing of dryer and sonic nozzle. Correction factors for inlet flow T inlet Working pressure (Barg) (°F) (°C) 32.2 0.75 0.87 0.94 1.00 1.06 1.12 1.17 35.0 0.72 0.84 0.92 1.00 1.06 1.12 1.17 37.8...

  • Page 97: Instructions For Use Of Air Dryer

    Recommendation by the manufacturer for the re-inspection time Following actions are to be executed by the user of the equipment or by Quincy personnel, unless stated different in national legislation of the country in which the equipment is operated. The stated time interval has as reference the day of start-up of the unit.

  • Page 98: Appendix 1- Service Diagram

    Instruction book Appendix 1- Service diagram 9829 2151 14...
  • Page 112 Performance You Demand. Reliability You Trust. Quincy Compressor 701 North Dobson Avenue Bay Minette, Alabama 251.937.5900 quincycompressor.com info@quincycompressor.com No. 9829 2151 14 / 2020 - 11...

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