Comprag RDX Series User manual

OPERATING MANUAL
Version 2.2
compressed air
refrigerating dryer
RDX series
EN
BEDIENUNGSANLEITUNG
Version 2.2
Druckluft Kältetrockner
RDX-Serie
DE
Seite. 27
RU
РУКОВОДСТВО ПО
ЭКСПЛУАТАЦИИ
Версия 2.2
Осушитель сжатого воздуха
рефрижераторного типа
серии RDX
стр. 51

© Comprag ®. All rights reserved.
No part of the text and /or diagram may be reprinted or used without the prior written permission of Comprag.
The manufacturer reserves the right to make changes to a product design in order to enhance its technological
and operational parameters without notifying the user.
The product type may considerably differ to that displayed in documents.

3
COMPRAG RDX series compressed air refrigerated dryer
Contents
1 Safety guidelines 4
1.1 Symbols used in the instructions 4
1.2 General safety guidelines 4
1.3 Safety precautions for start-up 5
1.4 Safety precautions during operation 6
1.5 Safety precautions for maintenance and repair 7
2 Technical data and functional description 9
2.1 Technical data 9
2.2 Function 11
2.3 Functional description 11
2.4 Conversion table of performance for different operating conditions 12
3 Start-up 13
3.1 Acceptance of dryer 13
3.2 Dimensions of dryer 13
3.3 Preparation of facility 15
3.4 Preparation of compressed-air line 15
3.5 Electrical connection 17
4 Usage 18
4.1 Control panel 18
4.2 Before use and on a weekly basis 22
4.3 Turning on dryer 22
4.4 Turning off dryer 22
5 Adjusting and maintenance 23
5.1 Hot gas bypass valve adjustment 23
5.2 Condensate drain valve adjustment 24
5.3 Cleaning condenser 24
6 Fault handling 25
7 Storage 26
EN

4Version 2.2
1. Safety guidelines
1.1 Symbols used in the instructions
Lethal hazard
Warning
Attention
1.2 General safety guidelines
Carefully familiarise yourself with the technical documentation,
operating instructions and safety guidelines. Most accidents as-
sociated with the use of compressor equipment occur as a result
of non-compliance with safety guidelines. Prevent hazards from
developing and adhere to the safety guidelines. The main rules
are given in the following section.
The user is solely liable for injuries or damages which occur due to
non-compliance with safety guidelines during installation, opera-
tion or servicing, as well as unauthorised use of equipment!
1 The operator must stringently adhere to safety guidelines provided for by these instruc-
tions and local legislation!
2. When choosing between these safety guidelines and the regulations provided for by
local legislation, those rules which provide for more stringent requirements shall apply.
3. Only trained maintenance personnel with the relevant level of professional training are
permitted to operate, service and repair Comprag equipment.
4. Compressed air owing immediately from the compressor may contain oil and impurities

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COMPRAG RDX series compressed air refrigerated dryer
and is not suitable for breathing! Compressed air has to be puried to an air purity grade
suitable for breathing, in accordance with the standards prescribed by local legislation.
5. Compressed air is an extremely hazardous energy source. Compressed air must not
be used for unintended purposes! Do not use it to clean clothing and footwear and never
point compressed air hoses at people and animals! When using air to clean equipment,
take extra caution and wear safety goggles!
6. All maintenance, repair, setup and installation work etc. must be performed while the
equipment is turned off, disconnected from the power source, with compressed-air hoses
disconnected from the equipment, and with the use of safety goggles! Ensure that equip-
ment is disconnected from the compressed air system and is not under pressure.
1.3 Safety precautions for start-up
The user is solely liable for injuries or damages which occur due to
non-compliance with safety guidelines during installation, opera-
tion or servicing, as well as unauthorised use of equipment!
1. Equipment must only be unloaded/loaded using the appropriate handling devices or
hoisters. Equipment must not be manually lifted or moved. Do not leave equipment sus-
pended. Use a helmet during unloading operations.
2. Arrange the equipment in a dry and clean facility which provides shelter from precipi-
tation. The facility must be well ventilated, and forced ventilation should be provided if
necessary.
3. Worn, damaged or spoiled compressed-air hoses should not be used. Ensure that
hoses correspond to the equipment in terms of nominal diameter and working pressure.
4. When using several compressor stations in a system, each compressor must have a manu-
ally operated valve for cutting off any of the compressors in the case of emergency.
5. Explosive and re-hazardous admixtures such as solvent vapours and carbon dust etc.
must not be released into the atmosphere.
6. Ensure unrestricted access to the compressed-air hose from the compressor. Do not
clutter it and do not store ammable materials in its immediate vicinity.
7. Do not pinch or deform the compressed-air feed hoses.
8. Do not cover holes used to provide equipment with air for cooling. Ensure the facility is well
ventilated.
9. When using remote control, the equipment must give a legible and clear warning of this:
‘ATTENTION: this machine is being controlled remotely and may start operating without
warning!’ An operator who is remotely controlling equipment must ensure that no installa-
tion or other work is being performed with the equipment at that moment. Once the equip-

6Version 2.2
ment is turned off remotely, the operator must ensure that the equipment is actually turned off!
10. Equipment must be earthed. Provide short-circuit protection. The starting knife switch
must be in the immediate vicinity of the equipment and protect against unauthorised start-up.
The user bears full responsibility for compliance with the operating condi-
tions of the electrical motor installed in the equipment.
Equipment must be used with protection devices.
The protection devices must protect the electric motor from short circuits,
overloading (systematic and start-up) and open-phase conditions.
Installation of protection devices is the responsibility of the user.
11. There must be an information plate afxed next to the control panel on equipment with
an independent control system featuring an automatic restart function: ‘ATTENTION: This
machine may start operating without warning!’
12. Any tanks and vessels working under pressure must be tted with safety-relief valves!
Unauthorised installation, disassembly or adjustment of attached safety-relief valves is
not allowed.
1.4 Safety precautions during operation
The user is solely liable for injuries or damages which occur due to
non-compliance with safety guidelines during installation, opera-
tion or servicing, as well as unauthorised use of equipment!
1. Ensure that hoses correspond to the equipment in terms of nominal diameter and working
pressure. Check the attachment of every hose coupling before start-up. An insecurely fas-
tened hose may cause serious injury.
2. Never turn on equipment if you suspect the presence of highly ammable impurities in the air!
3. The operator remotely controlling equipment must ensure that no installation or other work
is being performed with the equipment at that moment! An information plate must be afxed
to the equipment in relation to this: ‘ATTENTION: this machine is being controlled remotely
and may start operating without warning!’
4. An operator is not allowed to operate equipment if the operator is fatigued, in a state of
intoxication from alcohol, drugs or medicine that reduces the body’s reaction time.
5. The equipment must not be operated if parts of the casing have been removed. Doors or
panels may be opened for short durations for inspection and scheduled checks. It is advis-
able to wear hearing protection.

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COMPRAG RDX series compressed air refrigerated dryer
In some types of equipment, open doors or removal of panels du-
ring operation may lead to overheating.
6. Personnel in conditions or a facility where the sound pressure level reaches or exceeds
90 dB (A), must wear ear protectors.
7. If the air used for cooling equipment is used while the facility is being heated, undertake
measures for it to be ltered so that it is suitable for breathing.
8. Regularly check that:
• safety devices and attachments are in place;
• all hoses and pipes are in good condition and sealed;
• there are no leaks;
• brackets and structural components are tightened;
• all electrical cables and contacts are in good condition and safe to use;
• safety devices are fully functional and there is no contamination etc;
• all structural components are in working order, with no signs of wear and tear.
1.5 Safety precautions for maintenance and repair
The user is solely liable for injuries or damages which occur due to
non-compliance with safety guidelines during installation, operati-
on or servicing, as well as unauthorised use of equipment!
1. Only original spare parts and ancillary items may be used. Using spare parts from other
manufactures may lead to unpredictable results and consequently accidents.
2. When performing installation and repair work, always wear goggles!
3. Before connecting or disconnecting equipment, disconnect it from the main pneumatic
system. Ensure that the hoses aren’t under pressure!
4. Before beginning installation or other work, ensure that equipment is not pressurised.
Installation work must not be carried out on equipment under pressure.
5. All maintenance work should be carried out only when the temperature of all structural
elements falls to room temperature.
6. Never use highly ammable solvents or carbon tetrachloride for cleaning structural ele-

8Version 2.2
ments. When wiping, take precautions against the poisonous vapours of cleaning uids.
7. When carrying out installation and repair work, an information plate should be afxed
to the control panel to warn against unauthorised start-up. For example, “Do not turn on.
Personnel operating!”
8. The operator remotely controlling equipment must ensure that no installation or other
work is being performed with the equipment at that moment! An information plate must be
afxed to the equipment in relation to this: See 1.3.9.
9. Maintain cleanliness in the facility where the equipment is installed. Close open inlets
and outlets during installation with dry clothes or paper to prevent rubbish entering the
equipment.
10. Welding or other similar operations must not be carried out in the immediate vicinity of
the equipment and vessels under pressure.
11. If there is any suspicion of overheating, combustion or other emergency, turn off the
equipment. Immediately disconnect it from the power supply. Do not open the doors of
equipment until the temperature falls to room temperature, in order to prevent burns or injury.
12. Naked ames must not be used as a light source for inspecting and checking equipment.
13. Never use caustic solvents, which may damage materials of the pneumatic system
14. After performing installation or other work, ensure that no instruments, rags or spare
parts have been left inside the equipment.
15. Pay particular attention to the safety-relief valves. Thoroughly inspect them and remove
any dust and dirt. They must not be allowed to suffer any loss in function under any circum-
stances. Remember that your safety depends on their functionality!
16. Before beginning work in normal mode after maintenance or repair work, check that the
working pressure, temperature and other characteristics are correctly set. Ensure that all
control devices are installed and functioning properly.
17. When replacing lters, separators etc., wipe away dust, dirt and oil residue from the
area where they are installed with a dry cloth.
18. Protect the motor, air lter, electrical components and control components etc. from
coming into contact with condensate. For instance, blow down with dry air.
19. Safety precautions for operation with refrigerants:
• Never inhale refrigerant vapours. Ensure that the work zone is properly ventilated; use a
respirator if necessary;
• Always wear special-purpose gloves. If the refrigerant comes into contact with skin, rinse
the area of contact with plenty of water. If refrigerant comes into contact with skin through
clothing, do not try to remove clothing. Thoroughly rinse clothing with fresh water until the
refrigerant is washed off. Then seek medical assistance.
20. Use protective gloves during installation and repair work in order to avoid burns and
injury (for instance, during oil change).

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COMPRAG RDX series compressed air refrigerated dryer
2. Technical data and functional description
Entitlement to free handling of faults arising during the guarantee pe-
riod is forfeited when:
- No warranty service coupon for the compressor or it is lled out
incorrectly
- No records for the compressor’s scheduled maintenance are entered
in the compressor’s service book
- Unoriginal parts and lubricants are used
2.1 Technical data
Model RDX04 RDX06 RDX09 RDX12 RDX18
Article 14310000 14310001 14310002 14310003 14310004
Capacity*, (m3/min) 0,4 0,6 0,9 1,2 1,8
Maximum working pressure, bar 16
Maximum inlet temperature of
compressed air, 0C+55
Maximum ambient temperature, оС +45
Pressure dew point, 0C +3
Type of refrigerant R134a
Quantity of refrigerant, kg 0,16 0,21 0,24 0,30 0,35
Thread connection, internal thread G1/2“ G3/4“
Power supply 1/230 V – 50 Hz
Power required, kW 0,10 0,13 0,15 0,22 0,23
Model RDX24 RDX30 RDX36 RDX41
Article 14310005 14310006 14310007 14310008
Capacity*, (m3/min) 2,4 3,0 3,6 4,1
Maximum working pressure, bar 14
Maximum inlet temperature of
compressed air, 0C+55
Maximum ambient temperature, оС +45
Pressure dew point, 0C +3
Type of refrigerant R404a
Quantity of refrigerant, kg 0,40 0,40 0,51 0,51
Thread connection G1“, internal thread
Power supply 1/230 V – 50 Hz
Power required, kW 0,44 0,56 0,65 0,77

10 Version 2.2
Model RDX52 RDX65 RDX77
Article 14310009 14310010 14310011
Capacity*, (m3/min) 5,2 6,5 7,7
Maximum working pressure, bar 14
Maximum inlet temperature of
compressed air, 0C+55
Maximum ambient temperature, оС +45
Pressure dew point, 0C +3
Type of refrigerant R404a
Quantity of refrigerant, kg 0,59 0,72 0,73
Thread connection G1 1/2“, internal thread
Power supply 1/230 V – 50
Power required, kW 0,90 1,13 1,50
Model RDX100 RDX120 RDX150 RDX180
Article 14310012 14310013 14310014 14310015
Capacity*, (m3/min) 10,0 12,0 15,0 18,0
Maximum working pressure, bar 14
Maximum inlet temperature of
compressed air, 0C+55
Maximum ambient temperature, OС +45
Pressure dew point, 0C +3
Type of refrigerant R404a
Quantity of refrigerant, kg 1,05 1,15 1,55 1,85
Thread connection G2 1/2“, internal thread
Power supply 3/380 V – 50 Hz
Power required, kW 2,00 2,10 2,30 2,90
Model RDX200 RDX240 RDX300 RDX360
Article 14310016 14310017 14310018 14310019
Capacity*, (m3/min) 20,0 24,0 30,0 36,0
Maximum working pressure, bar 14
Maximum inlet temperature of
compressed air, 0C+55
Maximum ambient temperature, OС +45
Pressure dew point, 0C +3
Type of refrigerant R404a
Quantity of refrigerant, kg 2,10 2,30 3,10 3,70
Thread connection DN80
Power supply 3/380 V – 50 Hz
Power required, kW 2,90 3,90 4,70 5,30
*In conformity with ISO 7183 under standard operating conditions:
working pressure 7 bar, ambient temperature +25°C, compressed air inlet temperature +35°C.