DME DRYER MAINTENANCE MANUAL

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1 DME DRYER MINTENNCE MNUL DTE : 18February2002 REV: 4 domnick hunter filters limited,durham road, Birtley Co. Durham DH3 2SF, Tel: Telex: Telefax:

2 FOREWORD Page 2 of 32 The compressed air dryer systems have been designed and manufactured to ensure that maximum safety and performance is achieved. It is expected that users of these systems will employ safe working practices and ensure that when installing, commissioning, operating or maintaining the equipment, any legal requirements are fulfilled. For example, in the UK, users should refer to the Health and Safety ct, ll ancillary equipment such as pipework, valves, fittings etc., must be suitable for the pressures and capacities involved. Replacement parts are available from your distributor or the manufacturers ( see front page for information). The adoption of a regular servicing policy is strongly recommended and will result in ensuring that a high performance is achieved. Serial numbers and customer order numbers should be referred to in any communication. (Serial numbers can be found on the identification plate attached to the dryer). The figure number and the appropriate diagram in this manual and the item number (shown in circle,) will also assist in part identification. ny warranty will be invalidated if the dryer is not installed in accordance with the manufacturers recommendations or non-approved parts substituted. Substitute parts could reduce the performance or service life in addition to creating potential hazards. The manufacturers reserve the right to modify the contents of this manual without notice. The data given is a guideline to users and in no way binding on the manufacturers. BEFORE SERVICING OR DISMNTLING LL PRESSURE MUST BE RELESED FROM THE SYSTEM ND ITS SSOCITED PIPEWORK ND NY ELECTRICL SUPPLY ISOLTED.

3 Page 3 of 32 Section Description Page No OUTLET HED SSEMBLY COLUMN SSEMBLY INLET HED SSEMBLY PURGE SETTINGS CONTROL SSEMBLY MINTENNCE SCHEDULE RECOMMENDED TOOL LIST SCHEMTIC DIGRMS

4 Page 4 of 32 SECTION 1 OUTLET HED SSEMBLY Outlet Head Removal Outlet Check Vavle Replacement Torque Settings

5 OUTLET HED SSEMBLY SECTION OUTLET HED REMOVL Ensure dryer is fully depressurised. Remove outlet pipework. Remove outlet head holding down bolts. Remove outlet head from column. For DME remove from column sub plate assembly 1.2 OUTLET CHECK VLVE REPLCEMENT Follow instructions for outlet head removal. Remove four cheese head screws holding support screen in position Remove screen Remove retaining circlip. Withdraw valve seat. Remove check valve. Replace necessary items. Re-assemble in reverse order. Page 5 of 32

6 OUTLET HED SSEMBLY SECTION OUTLET HED REMOVL Torque all bolts to 30N/M Torque Fastening Sequence Page 6 of 32

7 Page 7 of 32 SECTION 2 COLUMN SSEMBLY Desiccant Replacement DME Column Replacement DME Desiccant Replacement DME Column Replacement DME Torque sequence & Settings

8 COLUMN SSEMBLY SECTION DESICCNT REPLCEMENT DME Remove outlet head Remove desiccant by means of an industrial vacuum cleaner. Ensure columns are clean and free from dust. Re-fill with new desiccant using a snow storm filler. Re-fit outlet head using a new molded O ring seal. 2.2 COLUMN REPLCEMENT Remove outlet head as per instructions. Remove desiccant as per instructions. Remove facia panel as per instructions. Invert dryer and remove control box as per instruction. Remove inlet head as per instructions. Replace column. Re-assemble in reverse order. Page 8 of 32

9 COLUMN SSEMBLY SECTION DESICCNT REPLCEMENT DME Remove outlet head as per instructions. Remove column subplate bolts. Remove column sub plate. Reomove column O rings. Remove desiccant by means of an industrial vacuum cleaner. Ensure columns are clean and free from dust. Re-fill with new desiccant using a snow storm filler. Re-assemble in reverse order. 2.4 COLUMN REPLCEMENT Remove outlet head as per instructions. Remove column sub plate. Remove desiccant as per instructions. Remove facia panel as per instructions. Invert dryer and remove control box as per instruction. Remove inlet head as per instructions. Remove inlet sub plate Replace column. Re-assemble in reverse order. Page 9 of 32

10 COLUMN SSEMBLY SECTION Torque Settings Torque all bolts to 30 N/M Torque Sequence Page 10 of 32

11 Page 11 of 32 SECTION 3 PURGE SETTINGS Purge djustment Purge Table

12 SECTION Purge djustment Switch of power to Dryer Remove the two Control Shroud locating bolts. llow the Control Facia Panel to hinge forwards. Remove plastic cover from Timer Box. Remove Jumper Pin from L/H connector. Refit plastic cover. Switch the power on. The Timer should enter fault mode. This is indicated by the flashing of the power on light. Remove the two Exhaust Cover locating bolts. llow to hinge forward. Remove the Silencer from the side which purge air is escaping. Fit required flow meter. djust purge air according to required flow rate. This is done by adjusting the Purge Valve on the Outlet Head. First remove the Retaining Plug. Using a screwdriver adjust needle valve. Clockwise to decrease. nti-clockwise to increase flow. Once the Purge is set replace Plug. Disconnect Flow Meter. Refit Silencer. To re-start correct cycle, switch off mains incoming electric supply Refit Jumper. Switch back on, Power Light should now be constant. Page 12 of 32

13 SECTION PURGE FLOW DRYER TYPE DME 5-10 bar CFM 5-10 bar L/M Page 13 of 32

14 Page 14 of 32 SECTION 4 INLET HED SSEMBLY Inlet Head Replacement DME Inlet Head Replacement DME Sub Plate ssembly DME Solenoid Valve Torque Setting

15 SECTION 4 DME INLET SSEMBLY Figure 1 Page 15 of 32

16 SECTION 4 DME INLET SSEMBLY Figure 2 Page 16 of 32

17 SECTION 4 Page 17 of 32

18 INLET SSEMBLY SECTION Torque Settings Torque all bolts to 6 N/M Page 18 of 32

19 Page 19 of 32 SECTION 5 CONTROL BOX SSEMBLY Pressure Gauge Removal Timer Replacement Transformer Replacement Facia Panel Removal Control Box Removal

20 SECTION PRESSURE GUGE REPLCEMENT Ensure dryer is fully depressuised. Remove locating bolts on facia panel. llow panel to hinge forward. Disconnect control pipe from rear of gauge. Slacken gauge retaining ring screws. Rotate retaining anti-clockwise and release gauge. Re-assemble in reverse order. 5.2 TIMER REPLCEMENT Ensure dryer is fully depressurised. Ensure dryer is electrically isolated Remove panel as per instructions. Unscrew perspex cover from control enclosure. Unclip leads from timer card. Unscrew two retaining nuts, on the timer mounting card Unscrew card from control back plate. Re-assemble in reverse order. 5.3 TRNSFORMER REPLCEMENT Ensure dryer is fully depressurised. Ensure dryer is electrically isolated. Follow instructions as per timer replacement. Unclip leads from transformer. Unscrew transformer from control back plate. Re-assemble in reverse order. 5.4 FCI PNEL REMOVL Ensure dryer is fully depressurised. Ensure electric supply is disconnected. Remove electric plug in connection. Remove locating bolts on facia panel Disconnect solenoid valve leads from inlet and exhaust valves. Pull facia panel apart from bottom of control box to release panel from pivot pins. Remove facia panel from box. Re-assemble in reverse order Page 20 of 32

21 SECTION CONTROL BOX REMOVL To carry out this procedure the dryer must be inverted. Remove facia panel, as per instructions. Remove four corner 12mm socket head bolts. Control box can now be removed. Re-assemble in reverse order. Page 21 of 32

22 Page 22 of 32 SECTION 6 MINTENNCE SCHEDULE

23 SECTION 6 Pneudri Preventative Maintenance Schedule Midi Plus DESCRIPTION 6 MONTHS 12 MONTHS SERVICE KIT Inlet Filter B s per filter code Timer Operation Solenoid Valve Operation C Solenoid Diaphragm B Solenoid Coil C VGD 15 Valve C Exhaust Silencer B B Hygrometer Transmiter (Calibration) B Inlet Head Seals B Outlet Head Seals C Desiccant C s per dryer code Check Valve Operation N/ Check Valve Check Valve Seat B Check Valve Guide B Check Valve Disc B Check Valve kit C Check Valve Spring Moisture Indicator B Outlet Filter B s per filter code Filter Drains Electrical Connections Control ir Filters B Inlet Cylinders Inlet Cylinder Seals B Inlet Cylinder Discs B Inlet Valve Kit C Item to be checked B - Item to be Changed C - Item to be changed every 24 months Page 23 of 32

24 Page 24 of 32 SECTION 7 RECOMMENDED TOOL LIST

25 SECTION 7 E Section Snow storm Filler G Section Snow storm Filler F Section Snow storm Filler Recommended Tool List For DME Spanners Open Ended or Combination 8mm 10mm 12mm 14mm 19mm Spanners Open Ended or Combination 21mm 32mm 36mm 6" djustable Spanner 12" djustable Spanner 12mm llen Key socket 1/2" drive 1 set metric llen Keys 1 3/16" llen Key 2lb Nylon Hammer Large Internal Circlip Pliers 7" Combination Pliers Side Cutters 2x Flat Blade Screwdrivers 1 Flat Blade Terminal Screwdriver 1 Posidrive Screwdriver 1/2" Drive Torque Wrench up to 50lb 1/2" Drive Ratchet 1/2" Drive Extension Bar 6" and 12" Sight Glass Tool - Part No Page 25 of 32

26 Page 26 of 32 SECTION 8 SCHEMTIC DIGRMS v 50/60Hz 1ph Wiring Schematic 230v 50/60Hz DDS Wiring Schematic 110v 50/60Hz 1ph Wiring Schematic 110v 50/60Hz DDS Wiring Schematic Piping Schematic 24v DC Wiring Schematic

27 v 50/60Hz 1ph Wiring Schematic Page 27 of 32

28 v 50/60Hz DDS Wiring Schematic Page 28 of 32

29 v 50/60Hz 1ph Wiring Schematic Page 29 of 32

30 v 50/60Hz DDS Wiring Schematic Page 30 of 32

31 8.5- Piping Schematic Page 31 of 32

32 8.6-24v DC Wiring Schematic Page 32 of 32

domnick hunter PNEUDRI DME012-RX - DME080-RX USER GUIDE Original Language

dh domnick hunter PNEUDRI DME012-RX - DME080-RX USER GUIDE Original Language EN Contents 1. Safety Information 4 1.1 Markings and symbols 5 1.2 Hazardous Substances 5 2. Description 6 2.1 Technical Specification