Pahwa Group Delair RD Series Operating, Installation And Maintenance Manual Download Page 26 | Manualshive

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Summary of Contents for Delair RD Series

Page 1: ...1...

Page 2: ...ith care to give you excellent service The Air Dryer has been manufactured to the designs and engineering of Delair the world leaders in this field Ultimate customer satisfaction is generally dependen...

Page 3: ...ction 2 3 Installation types 2 4 Placing the equipment 2 5 Installation 2 6 Electric connection 3 Operation 3 1 Start up 3 2 Switching on and off 3 3 Fault indication 3 4 Safety measures improper meth...

Page 4: ...as applicable Liquid separator Insulated Heat Exchanger contains Air to refrigerant heat exchanger Air to air heat exchanger Moisture Separator Electrical Microprocessor based delsmart display Control...

Page 5: ...5 1 1 About RD series Compressed Air Dryer Figure 1 will help you to identify various components of the RD series Compressed Air Dryer along with various safety and controls Figure 1...

Page 6: ...YER FILTER COMPRESSOR AUTO DRAIN SEPARATOR WATER VALVE EXPANSION SYSTEM ON OFF POWER ON COMPRESSOR OVERLOAD FAILURE AUTO DRAIN HIGH AMBIENT HIGH INLET AIR TEMP M LIQUID RECEIVER SIGHT GLASS FAN CONDEN...

Page 7: ...c resulting in condensation of moisture present in the air This air with the condensate is made to pass through the water separator where the condensed water is collected in the separator bowl The dri...

Page 8: ...of the Dryer The electrical consists of Miniature Circuit Breaker MCB Microprocessor based delsmart card Power Supply Card PCB Control contactor for comp On Off Starting kit for compressor For 1Phase...

Page 9: ...fault indication Indicates the Dryer when compressor Are overheating or low gas condition High ambient fault indication Indicates the Dryer when ambient Temperature high from the set point Auto drain...

Page 10: ...ide to a variable speed fan control for ensuring that the condensing pressure does not drop too low especially in cold weather insert fan pressure control switch image Single phase preventer motor pro...

Page 11: ...hermocol panels from around and top of the unit Remove mounting bolts clamping down the unit to the wooden base of the packing and gently lift the machine free from the pallet Remove the side steel pa...

Page 12: ...hanical connections 3 Check incoming power supply 220 v or 415 v ac 50 hz 4 Check earthing vs neutral 0 to 1v 5 Check setting of phase sequence relay 6 Check the capacity of Dryer and Compressor 7 Che...

Page 13: ...Inlet temperature Dryer outlet temperature of after cooler Option B Dryer after Air Receiver Flow through Dryer can be more than maximum flow of Compressor Inlet temperature Dryer lower than outlet t...

Page 14: ...14 2 4 Placing the equipment We recommend a minimum 600 mm of space be provided for future service and proper air ventilation Also ensure that ambient and other inlet parameters are as per design...

Page 15: ...o the Dryer inlet via moisture separator pre filter in that order Connect the inlet and outlet points figure 2 2 to the respective points in the pipe lines all the pipe connections should be leak proo...

Page 16: ...0hz w o n Other option System operating on other voltage can be supplied on request please check the name plate for correct voltage number of phases and frequency Wire cable sized can be selection on...

Page 17: ...will be on On position if fault has come and not been removed attended The machine is a continuous working type and its compressor keeps running and trips if exceptional overload occurs If the compres...

Page 18: ...ults Five types of faults i e High pressure Compressor overload High inlet air temperature High ambient water temperature Auto drain failure will be indicated on electronic display card Microprocessor...

Page 19: ...shall be established first neutral conductor second and phase line hot conductor last 2 Protection of equipment Equipment has been provided with an MCB of 230 415v both as a supply disconnecting devi...

Page 20: ...he condensate from the moisture separator and air receiver figure 4 2 Function of compressor Weekly Working of fan Monthly Mounting bolts of the compressor condenser and vla figure 4 1 De scaling of w...

Page 21: ...n tubing from the bottom of the seperator Disconnect the solenoid valve and clean with air pressure Connect the valve and tube And open ball valve of auto drain valve Start the Dryer Weekly Since this...

Page 22: ...epair or replace e Check lead if lead is ok replace motor 4 Compress or starts but motor will not get off starting winding a Low line voltage b Improperly wired c Defective relay d Defective run capac...

Page 23: ...pressor suction or discharge valves inefficient indicated by high head c Defective fan control d Inlet air temperature too low a Repair leak and recharge b Repair or replace c Repair adjust or replace...

Page 24: ...re low Pre cooler and or evaporator clogged b Incorrect piping c Air overload d Unit too small e Excess water in unit a Increase pressure b Reverse flush using mild detergent c Increase line size and...

Page 25: ...25 Annexure i...

Page 26: ...______________________________________ ________________________________________________________________________________ ________________________________________________________________________________...

Page 27: ...com West South Delair India Pvt Ltd 319 T V Tower Industrial Estate Worli Mumbai 400030 Contact Mr S R Dhuri Phone 022 24935155 Fax 022 24931020 Mobile 09820601382 E Mail delairservicew pahwa com Dela...

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