Table of Contents
Advertisement
Installation and operating
Please read the following instructions carefully before installing the product. Trouble free and
safe operating of the product can only be guaranteed if recommendations and conditions stated
in this manual are respected.
manual
Refrigeration Dryer Series
RDP 20 – 2600
RDT 20 – 1900
Advertisement
Table of Contents
Related Manuals for OMEGA AIR RDP 20
Summary of Contents for OMEGA AIR RDP 20
- Page 1 Installation and operating manual Refrigeration Dryer Series RDP 20 – 2600 RDT 20 – 1900 Please read the following instructions carefully before installing the product. Trouble free and safe operating of the product can only be guaranteed if recommendations and conditions stated...
- Page 2 Dear customer! Thank you for purchasing our product. In order for the product to serve well and reliably, please read these installation and operating instructions carefully. In order to avoid misuse of equipment and potential hazards for the operator, please read thoroughly and strictly follow the instructions contained in this installation and operating manual.
-
Page 3: Table Of Contents
Table of Contents 1. GENERAL INFORMATION ..........................5 1.1. Device information ........................5 1.2. Information on the supplier ......................5 1.3. Refrigeration air dryers ....................... 6 1.4. Proper use ............................ 6 1.5. Efficiency ............................6 1.6. Data plate ............................. 7 2. - Page 4 ALARM OUTPUT ..........................25 PROGRAMMING AND PARAMETERS ................... 25 5.6. Condensate drain ........................27 ELECTRONIC CONDENSATE DRAIN (RDP 20 -1900) ..............27 TIMER CONTROLLED CONDENSATE DRAIN (RDT) ................ 28 AUTOMATIC MECHANICAL CONDENSATE DRAIN (RDP 2600) ............ 28 5.7. Safety functions ......................... 28 5.8.
-
Page 5: General Information
1. GENERAL INFORMATION 1.1. Device information Data plate is located on the back of the device (Figure 1). It contains important data regarding the model, serial number, working conditions and refrigerant used. Always refer to this data when contacting the manufacturer or sales representative. Model of refrigeration air dryer: Serial number: Year of manufacture:... -
Page 6: Refrigeration Air Dryers
1.3. Refrigeration air dryers Compressed air contains contaminants such as water, oil and particles. Impurities need to be removed or their concentration reduced to an acceptable level according to the requirements of the application. The ISO 8573-1 standard specifies the purity / quality of the air for contaminants. The humidity (water vapor content) can be expressed in terms of Pressure Dew Point (PDP). -
Page 7: Data Plate
1.6. Data plate Data plate contains important information of the device. It is located on the back of the dryer. It is important to provide the information on the data plate when contacting your sales representative or manufacturer. Information on the data plate includes but is not limited •... -
Page 8: Safety Symbols And Signal Words Used
2.1. Safety symbols and signal words used Operating instructions must be observed General hazard High voltage hazard Hot surface hazard General requirement Do not use water to extinguish the fire Imminent hazard Danger! Non observance will result in serious injury or death and/or property damage Potential hazard Warning! Non observance could result in serious injury, death and/or property damage... -
Page 9: General Safety Instructions
2.2. General safety instructions Danger! Compressed Air! • Improper use of the compressed air system can lead to serious injury or death. • Before working on the dryer ensure the dryer is vented and not under pressure (this also applies the closest components of the compressed air installation around the dryer). - Page 10 Caution! Improper use! • Only use refrigeration air dryers for intended purpose. • Improper handling (transport, installation, use, maintenance) of a refrigeration air dryer can lead to serious injury or death. The result of improper use may be damage to the device and/or reduced efficiency of the dryer.
-
Page 11: Technical Specifications
10. Filter / dehydrator 3.2. Specifications TECHNICAL SPECIFICATIONS Max. operating pressure 16 bar (RDP 20-1900), 14 bar (RDP 2600-13200) Max. inlet air temperature 55 °C (for temperature ≠ 35 °C apply correction factor) Operating ambient temperature 1 °C to 45 °C (for temperature > 25 °C apply correction factor) Storage conditions 1 °C to 65 °C, <90 % relative humidity... - Page 12 MATERIALS Casing Carbon steel Casing corrosion protection Epoxy powder paint Evaporator Brazed plate stainless steel (RDP 600-1900), aluminum (RDP 20-480, RDP 2600) Evaporator insulation Flexible elastomeric foam Condenser Aluminum fin and copper tube (RDP 20-1900), aluminum MCHE (RDP 2600) Compressor...
-
Page 13: Standard Parameters And Correction Factors
3.3. Standard parameters and correction factors PERFOMANCE DATA PER ISO 7183:2007 Ambient temperature 25 °C / 77 °F Inlet pressure 7 bar / 102 psig Inlet relative humidity 100 % Inlet temperature 35 °C / 95 °F To calculate the correct capacity of a given dryer based on actual operating conditions, multiply the nominal inlet flow by the appropriate correction factor(s). -
Page 14: Refrigeration Air Dryer Operation
4. Refrigeration air dryer operation The refrigeration air dryer is designed to remove moisture from the input air to achieve the desired dew point at the exit. All refrigeration air dryers described above operate according to the same principle. The operation of the refrigeration air dryer can be divided into two main circuits: Air and refrigeration circuit. -
Page 15: Refrigeration Air Dryer Components
5. Refrigeration air dryer components 5.1. Compressor The compressor sucks the gaseous phase of the refrigerant from the evaporator (low pressure side) and compresses it to the condensation pressure (high pressure side). Built-in compressors are manufactured by leading manufacturers and are designed for applications where high compression ratios and high temperature differences are present. -
Page 16: Controller Rdc 4.0
Press to see dew point reached in °C or °F – based on parameter11 in settings. The controller controls the condenser fan based on the thermal load of the dryer (RDP 20-480). Notice! •... -
Page 17: Leds
LEDS STATUS DESCRIPTION Compressor off Compressor on BLINKING Compressor stopped due to time protection Fan off Fan on BLINKING No function No function / Condensate drain closed (units with timer-controlled drains) No function / Condensate drain open (units with timer-controlled drains) BLINKING No function Normal operation... -
Page 18: Operation And Display
OPERATION AND DISPLAY Standby mode: The dryer is in standby mode. The compressor and fan(s) are off. In case compressor oil heater is installed the heater is on. Press for 3 seconds to start the dyer. Press for 3 seconds to load default parameters. Press to show firmware release. -
Page 19: Alarms
ALARMS Dew point sensor failure. Permanent alarm. The dryer will not start/work. Compressor temperature sensor failure. Permanent alarm. The dryer will not start/work. Condenser temperature failure. Permanent alarm. The dryer will not start/work. Compressor temperature ≥ 105 °C. Possible compressor damage. The dryer will enter in special alarm operation to prevent freezing and damage of the evaporator. -
Page 20: Modbus Communication
MODBUS COMMUNICATION For MODBUS communication the RS485 adapter is needed. The twisted pair of cables needs to be connected to A and B. The default address for the MODBUS communication is 1. This can be changed through parameter 14. MODBUS SETTINGS BAUD RATE 9600 WORD LENGTH... - Page 21 Default Range Press Press Press parameter Function number Drain Cycle Value Go to following Increase Decrease 1 – 10 s parameter value value Drain Period Value Go to following Increase Decrease 0 - 600 s parameter value value Do not change Go to following Increase Decrease...
-
Page 22: Controller Dek 250
Figure 6 Front panel The controller DEK 250 shows the temperature of the dew point reached by the refrigeration air dryer in the normal operation. The controller controls the condenser fan based on the thermal load of the dryer (RDP 20-480). Notice! •... -
Page 23: Operation And Display
OPERATION AND DISPLAY Standby mode: The dryer is in standby mode. The compressor and fan(s) are off. In case compressor oil heater is installed the heater is on. Press for 3 seconds to start the dyer. Press for 3 seconds to load default parameters. Press to show firmware release. -
Page 24: Alarms
ALARMS Dew point sensor failure. Permanent alarm. The dryer will not start/work. Compressor temperature sensor failure. Permanent alarm. The dryer will not start/work. Condenser temperature failure. Permanent alarm. The dryer will not start/work. Compressor temperature ≥ 105 °C. Possible compressor damage. The dryer will enter in special alarm operation to prevent freezing and damage of the evaporator. -
Page 25: Modbus Communication
CAUTION! The dryer is designed to run continuously and should not be cycling on and off with the compressor. Switching the dryer ON and OFF too often can cause damage to the dryer. MODBUS COMMUNICATION For MODBUS communication the RS485 adapter is needed. The twisted pair of cables needs to be connected to A and B. - Page 26 Default Range Increment Press Press Press parameter Function number Drain Cycle Value Go to following Increase Decrease 1 – 10 s parameter value value Drain Period Value Go to following Increase Decrease 0 - 600 s 60 s parameter value value Do not change Go to following...
-
Page 27: Condensate Drain
Before performing any maintenance on the drain ensure the dryer is vented and not under pressure. ELECTRONIC CONDENSATE DRAIN (RDP 20 -1900) Electronically controlled condensed water drain that discharges water trapped in the lowest parts of compressed air installation out of the system. It consists of a water tank, valve assembly and electronics. -
Page 28: Timer Controlled Condensate Drain (Rdt)
TIMER CONTROLLED CONDENSATE DRAIN (RDT) Condensate drain consists of two timers, T and T which are regulated by controller (P1 and P2) the dryer controller. Ton timer regulates the time duration of discharging and Toff regulates time between two discharges (period). When the controller sends a signal at pin DRAIN, it activates the discharging process immediately, which is noticed by the sound of valve being open. -
Page 29: Filter / Dehydrator
5.8. Filter / dehydrator Moisture and impurities can be present in the refrigeration circuit. This can reduce the lubrication of the compressor and block the expansion valve or capillary tube. The dryer filter / dehydrator is located in front of the capillary tube to remove moisture and impurities from the circulation system. 5.9. -
Page 30: Pressure Switch (Rdp/T 600 - 2600)
5.11. Pressure switch (RDP/T 600 – 2600) Pressure switchs are for use in refrigeration and air conditioning systems to give protection against excessively low suction pressure or excessively high discharge pressure. They are used for starting and stopping fans on air-cooled condensers. -
Page 31: Transport
6. Transport • Check the packaging and dryer for any visible damage. The refrigeration dryer can be damaged during transport. Operating such dryer may result in injury or death. In case of visual damage report the damage to the delivery carrier and contact manufacturer/supplier. •... -
Page 32: Installation
8. Installation 8.1. General environment requirements The following location requirements must be met for the dryer to operate properly: • Clean and dry space protected against atmospheric conditions. • The installation area must be even and able to bear the weight of the dryer. •... -
Page 33: Electrical Connection
Caution! Contaminated compressed air! Contaminated air can reduce refrigeration dryer efficiency and performance. In worst case it can clog the heat exchanger and permanently damage the dryer. 8.3. Electrical connection Adequate power supply needs to be provided. See the data plate on the dryer. Voltage tolerance is ±10 % It is mandatory for the dryer to be grounded. -
Page 34: Installation Arrangement
8.4. Installation arrangement Two most common installation arrangements of the refrigeration dryer are presented in Figure 8 Installation arrangements. They are not mandatory and are presented just as sample. A different arrangement of components is always possible. Type A installation is recommended when the compressor operates at a reduced interruption rate and total consumption that equals the flow of the compressor. -
Page 35: Installation Procedure
8.4. Installation procedure • The refrigeration air dryer is typically delivered on the standard pallet on which it is screwed with four screws. • The refrigeration air dryer can be lifted with forklift trucks. • Remove the screws and the pallet before positioning the dryer at the desired location. •... -
Page 36: Start-Up And Shut Down
9. Start-up and shut down 9.1. Before start-up This dryer has been fully tested, packaged and checked before shipping. Nevertheless, it may happen that it is damaged during transport. Before starting it up for the first time, check its compliance, and for the first few hours of operation, you should also carefully monitor its behavior. -
Page 37: Maintenance
10. Maintenance During the maintenance work on the refrigeration air dryer, turn it off and wait for at least 30 minutes for it to cool down. Some components can reach high temperature during operation. Avoid contact with these components until they completely cool down. Daily check that the dew point shown on the controller is appropriate. -
Page 38: Troubleshooting
12. Troubleshooting Danger! Troubleshooting and maintenance procedures can only be performed by qualified personnel with the necessary knowledge. Before any maintenance or service parts make sure that: • no part or device is powered and must not be connected to a power source •... - Page 39 SYMPTOM POSSIBLE CAUSE PROPOSED ACTIONS Condensate not drained Check the corresponding point Low dew point (condensate Check the corresponding point is freezing inside the Excessive pressure evaporator and obstruct drop the air flow) Piping connections and Check the piping connections and valves valves Check the dryer status (standby mode, alarm, Air dryer does not work...
- Page 40 SYMPTOM POSSIBLE CAUSE PROPOSED ACTIONS Assure nominal operating conditions Thermal overload Ambient temperature too high High compressor discharge temperature or Inlet temperature too high The condenser is dirty Check the corresponding point The fan does not work Get in touch with an engineer in the field of Refrigerant leakage refrigeration.
-
Page 41: Warranty
13. Warranty The warranty is valid for 12 months from the date of purchase and no more than 14 months from the date of dispatch. During this time, the parts that were originally incomplete will be repaired or replaced free of charge. This does not include travel costs, accommodation and food for our technicians. -
Page 42: Spare Parts
14. Spare parts For the correct spare parts list contact your supplier/manufacturer. Notice! Always provide the information from data plate when ordering the spare parts. 15. Drawings For the correct drawings list contact your supplier/manufacturer. 16. Electric diagram For the correct spare parts list contact your supplier/manufacturer. -
Page 43: Maintenance Notes
17. Maintenance notes MAINTENANCE TYPE DATE SIGNATURE NOTES First installation... - Page 44 MAINTENANCE TYPE DATE SIGNATURE NOTES...
- Page 45 Product: Refrigeration dryer Model: RDP 20, RDP 35, RDP 50, RDP 75, RDP 100, RDP 140, RDP 180, RDP 235, RDP 300, RDP 380, RDP 480, RDP 600, RDP 750, RDP 950, RDP 1150, RDP 1300, RDP 1500, RDP 1900,...
- Page 46 EC Declaration of Conformity Omega Air d.o.o. Ljubljana Cesta Dolomitskega odreda 10 1000 Ljubljana Slovenia Declares that Product: Refrigeration dryer Model: RDT 20, RDT 35, RDT 50, RDT 75, RDT 100, RDT 140, RDT 180, RDT 235, RDT 300, RDT 380, RDT 480, RDT 600, RDT 750, RDT 950, RDT 1150, RDT 1300, RDT 1500, RDT 1900...
- Page 47 OMEGA AIR d.o.o. Ljubljana Cesta Dolomitskega odreda 10 1000 Ljubljana, Slovenia T: +386 (0)1 200 68 00 info@omega-air.si www.omega-air.si...
Need help?
Do you have a question about the RDP 20 and is the answer not in the manual?
Questions and answers