Quincy QHD750 User manual

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

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.
No. 9829 2151 14
www.quincycompressor.com

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9829 2151 14 5
Table of contents
1Safety precautions ............................................................................................... 7
1.1 SAFETY ICONS ............................................................................................................................................7
1.2 GENERAL SAFETY PRECAUTIONS ...........................................................................................................7
1.3 SAFETY PRECAUTIONS DURING INSTALLATION....................................................................................8
1.4 SAFETY PRECAUTIONS DURING OPERATION........................................................................................9
1.5 SAFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR............................................................10
1.6 DISMANTLING AND DISPOSAL.................................................................................................................12
2General description............................................................................................ 13
2.1 INTRODUCTION .........................................................................................................................................13
2.2 AIR CIRCUIT ...............................................................................................................................................23
2.3 REGENERATION CIRCUIT ........................................................................................................................25
2.4 SHIFTING TOWERS...................................................................................................................................26
2.5 OPERATING CYCLES................................................................................................................................27
3Airlogic graphic regulator ................................................................................. 28
3.1 AIRLOGIC GRAPHIC REGULATOR...........................................................................................................28
3.2 CONTROL PANEL ......................................................................................................................................29
3.3 ICONS USED ..............................................................................................................................................30
3.4 MAIN SCREEN............................................................................................................................................33
3.5 CALLING UP MENUS .................................................................................................................................36
3.6 INPUTS MENU............................................................................................................................................38
3.7 OUTPUTS MENU........................................................................................................................................42
3.8 COUNTERS.................................................................................................................................................44
3.9 CONTROL MODE SELECTION..................................................................................................................46
3.10 SERVICE MENU .........................................................................................................................................48
3.11 MODIFYING THE SETPOINT.....................................................................................................................53
3.12 EVENT HISTORY MENU............................................................................................................................56
3.13 MODIFYING GENERAL SETTINGS...........................................................................................................57
3.14 INFO MENU.................................................................................................................................................60
3.15 WEEK TIMER MENU ..................................................................................................................................61
3.16 TEST MENU................................................................................................................................................70
3.17 USER PASSWORD MENU.........................................................................................................................72
3.18 PROGRAMMABLE SETTINGS...................................................................................................................73
4Installation .......................................................................................................... 74
4.1 DIMENSION DRAWING..............................................................................................................................74
4.2 INSTALLATION PROPOSAL ......................................................................................................................75
4.3 POSITIONING .............................................................................................................................................76

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6 9829 2151 14
4.4 PIPING.........................................................................................................................................................76
4.5 ELECTRICAL WIRING................................................................................................................................77
4.6 INSTALLATION OF THE SONIC NOZZLE.................................................................................................78
4.7 PICTOGRAPHS...........................................................................................................................................80
5Operating instructions....................................................................................... 81
5.1 INITIAL START-UP......................................................................................................................................81
5.2 START-UP...................................................................................................................................................81
5.3 DURING OPERATION ................................................................................................................................82
5.4 STOPPING ..................................................................................................................................................82
6Maintenance........................................................................................................ 83
6.1 MAINTENANCE...........................................................................................................................................83
6.2 SERVICE KITS............................................................................................................................................84
6.3 SERVICE AGREEMENTS...........................................................................................................................84
6.4 SERVICE PLAN...........................................................................................................................................84
6.5 FILLING INSTRUCTIONS...........................................................................................................................84
6.6 PRECAUTIONS BEFORE STORAGE........................................................................................................86
7Optional equipment............................................................................................ 88
7.1 DEWPOINT METER....................................................................................................................................88
7.2 SONIC NOZZLE ..........................................................................................................................................88
7.3 FILTER OPTION..........................................................................................................................................89
8Problem solving ................................................................................................. 90
8.1 PROBLEM SOLVING ..................................................................................................................................90
9Technical data .................................................................................................... 92
9.1 DRYER DATA..............................................................................................................................................92
10 Instructions for use of Air Dryer....................................................................... 97
Appendix 1- Service diagram..................................................................................... 98

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9829 2151 14 7
1 Safety precautions
1.1 Safety icons
Explanation
Danger for life
Warning
Important note
1.2 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.
3. If any of the following statements does not comply with the applicable legislation, the stricter of the
two shall apply.
4. Installation, operation, maintenance and repair work must only be performed by authorized, trained,
specialized personnel.
5. The dryer is not considered capable of producing air of breathing quality. For air of breathing quality,
the compressed air must be adequately purified according to the applicable legislation and standards.
6. Before any maintenance, repair work, adjustment or any other non-routine checks, stop the dryer,
press the emergency stop button, switch off the voltage and depressurize the dryer. In addition, the
power isolating switch must be opened and locked. Make sure that the dryer is isolated from the air
net by separately installed valves or make sure that it is impossible to start up all compressors
connected to the air net by opening and locking their isolating switches.
7. Never play with compressed air. Do not apply the air to your skin or direct an air stream at people.
Never use the air to clean dirt from your clothes. When using the air to clean equipment, do so with
extreme caution and wear eye protection.
8. The owner is responsible for maintaining the unit in safe operating condition. Parts and accessories
shall be replaced if unsuitable for safe operation.
9. It is not allowed to walk or stand on the dryer components.

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8 9829 2151 14
1.3 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.
Precautions during installation
1. The machine must only be lifted using suitable equipment in accordance with the applicable safety
regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to
dwell or stay in th+e risk zone under a lifted load. Lifting acceleration and deceleration must be kept
within safe limits. Wear a safety helmet when working in the area of overhead or lifting equipment.
2. The unit is designed for indoor use. If the unit is installed outdoors, special precautions must be taken;
consult the manufacturer.
3. Install the dryer as level as possible and fix it firmly to the floor.
4. Place the machine where the ambient air is as cool and clean as possible.
5. Any flange covers, plugs, caps and desiccant bags must be removed before connecting the pipes.
6. Air hoses must be of correct size and suitable for the working pressure. Never use frayed, damaged
or worn hoses. Distribution pipes and connections must be of the correct size and suitable for the
working pressure.
7. The inlet air must be free of hazardous gas, fumes, vapors and particles, e.g. paint solvents, that can
lead to internal fire or explosion.
8. External forces and/or moments are not taken into account in the dryer design. Therefore any external
forces and/or moments exerted on the air inlet and outlet flange must be kept to a minimum; the
connected pipe must be free of strain.
9. If remote control is installed, the machine must bear a clear sign stating:
DANGER: This machine is remotely controlled and may start without warning.
The operator has to make sure that the machine is stopped and that the isolating switch is open and
locked before any maintenance or repair. As a further safeguard, persons switching on remotely
controlled 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.
10. 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 dryer.
11. On machines with automatic start/stop system or if the automatic restart function after voltage failure
is activated, a sign stating " DANGER: This machine may start without warning" must be affixed near
the instrument panel.
12. Never remove or tamper with the safety devices, guards or insulation fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure
must be protected by a pressure-relieving device or devices as required.
13. Piping or other parts with a temperature in excess of 80°C (176°F) and which may be accidentally
touched by personnel in normal operation must be guarded or insulated. Other high-temperature
piping must be clearly marked.
14. If the ground is not level or can be subject to variable inclination, consult the manufacturer.
15. If a fire extinguishing system is not present in the same room and close to the dryer a safety valve
must be installed on each dryer vessel. Depending on local legislations safety valves may be required
anyhow.
16. Make sure that all piping is installed stress-free.

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9829 2151 14 9
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.
Also consult following safety precautions: Safety precautions during operation
and 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;
hence some statements may not apply to your machine.
1.4 Safety precautions during operation
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.
Precautions during operation
1. Never touch any piping or components of the dryer during operation.
2. Use only the correct type and size of hose end fittings and connections. When blowing through a hose
or air line, ensure that the open end is held securely. A free end will whip and may cause injury. Make
sure that a hose is fully depressurized before disconnecting it.
3. Persons switching on remotely controlled 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 remote start equipment.
4. Never operate the machine below or in excess of its limit ratings.
5. People staying in environments or rooms where the sound pressure level reaches or exceeds 90 dB
(A) shall wear ear protectors.
6. Periodically check that:
All guards are in place and securely fastened
All hoses and/or pipes inside the machine are in good condition, secure and not
rubbing
There are no leaks
All fasteners are tight
All electrical leads are secure and in good order
Safety valves and other pressure-relief devices are not obstructed by dirt or paint
Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in
good repair, free of wear or abuse.
7. Never operate the machine when there is a risk of taking inflammable or toxic fumes, vapours or
particles.
8. Do not remove any of, or tamper with, the sound-damping material.
9. Never remove or tamper with the safety devices, guards or insulations fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure
shall be protected by a pressure-relieving device or devices as required.

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10 9829 2151 14
Also consult following safety precautions: Safety precautions during installation
and 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;
hence some statements may not apply to your machine.
1.5 Safety precautions during maintenance or repair
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.
Precautions during maintenance or repair
1. Always use the correct safety equipment (such as safety glasses, gloves, safety shoes, etc.).
2. Use only the correct tools for maintenance and repair work.
3. Use only genuine spare parts.
4. All maintenance work shall only be undertaken when the machine has cooled down.
5. A warning sign bearing a legend such as "work in progress; do not start" shall be attached to the
starting equipment.
6. Persons switching on remotely controlled 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 remote start equipment.
7. Before removing any pressurized component, effectively isolate the machine from all sources of
pressure and relieve the entire system of pressure.
8. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions
against toxic vapours of cleaning liquids.
9. Scrupulously observe cleanliness during maintenance and repair. Keep dirt away by covering the
parts and exposed openings with a clean cloth, paper or tape.
10. Whenever there is an indication or any suspicion that an internal part of a machine is overheated, the
machine shall be stopped but no inspection covers shall be opened before sufficient cooling time has
elapsed; this to avoid the risk of spontaneous ignition of the oil vapour when air is admitted.
11. Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, etc.
12. Make sure that no tools, loose parts or rags are left in or on the machine.
13. All regulating and safety devices shall be maintained with due care to ensure that they function
properly. They may not be put out of action.
14. Before clearing the machine for use after maintenance or overhaul, check that operating pressures,
temperatures and time settings are correct. Check that all control and shut-down devices are fitted
and that they function correctly. If removed, check that the coupling guard of the compressor drive
shaft has been reinstalled.
15. Protect the motor, air filter, electrical and regulating components, etc. to prevent moisture from
entering them, e.g. when steam-cleaning.
16. Never use caustic solvents which can damage materials of the air net, e.g. polycarbonate bowls.
17. The following safety precautions are stressed when handling desiccant:
Take precautions not to inhale desiccant dust.
Check that the working area is adequately ventilated; if required, use breathing
protection.