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IR D5IM-D34IM Desiccant Dryer Maintenance Guide

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D5IM – D34IM Desiccant Dryer Maintenance Guide
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Page 1: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

D5IM – D34IM Desiccant Dryer Maintenance Guide

Page 2: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Safety Information

Important: Do not operate this equipment until the safety information and instructions in this user guide have been read and understood by all personnel concerned. Only competent personnel trained, qualified, and approved by Ingersoll Rand should perform installation, commissioning, service and repair procedures. Use of the equipment in a manner not specified within this user guide may result in an unplanned release of pressure, which may cause serious personal injury or damage. When handling, installing or operating this equipment, personnel must employ safe engineering practices and observe all related regulation, health & safety procedures, and legal requirements for safety. Ensure that the equipment is depressurized and electrically isolated, prior to carrying out any of the scheduled maintenance instructions specified within this user guide. Most accidents that occur during the operation and maintenance of machinery are the result of failure to observe basic safety rules and procedures.Accidents can be avoided by recognizing that any machinery is potentially hazardous. Ingersoll Rand can not anticipate every possible circumstance which may represent a potential hazard. The warnings in this manual cover the most known potential hazards, but by definition can not be all-inclusive. If the user employs an operating procedure, item of equipment or a method of working which is not specifically recommended by Ingersoll Rand the user must ensure that the equipment will not be damaged or become hazardous to persons or property.

BEFORE SERVICING OR DISMANTLING ALL PRESSURE MUST BE RELEASED FROM THE SYSTEM AND ITS ASSOCIATED PIPEWORK AND ANY ELECTRICAL SUPPLY ISOLATED.

Hazardous Substances

The chambers of the dryer are filled with DRYFIL desiccant material. This is a powerful desiccant and will dry out the atmosphere, eyes, nose, and mouth. If the desiccant comes into contact with the eyes or skin, wash the affected area with copious amounts of water. DRYFIL may contain some dust therefore and or nasal dust respirator should be worn when handling the equipment. Adequate ventilation should be provided when working with desiccant. The desiccant is classified as non-hazardous for transportation. DRYFIL will evolve heat on contact with moisture and may generate pressure in a confined space. DRYFIL should therefore be stored in a dry place in its original packaging.DRYFIL is non-flammable. Any fire should be fought by means appropriate to the material causing the fire. DRYFIL should be disposed of into a licensed land fill site.

Page 3: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 3 of 42

Section

A1

A2

A3

A4

A5

A6

A7

Description

LOWER HEAD ASSEMBLY

COLUMN ASSEMBLY

UPPER HEAD ASSEMBLY

PURGE SETTINGS

CONTROL BOX ASSEMBLY

RECOMMENDED TOOL LIST

SCHEMATIC DIAGRAMS

Page No

Correction Factors

Page 4: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 4 of 42

MIDAS CONSTRUCTION

Page 5: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 5 of 42

SECTION A1

LOWER HEAD ASSEMBLY

A1.1

A1.2

A1.3

A1.4

A1.5

Lower Head Removal

Silencer Removal

Inlet Ball and Retainer Removal

Solenoid Valve Removal

Lower Head Torque sequence

Page 6: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

LOWER HEAD ASSEMBLY SECTION A1A1.1a LOWER HEAD REMOVAL1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 6 lower head bolts

A1.1b LOWER HEAD REASSEMBLE1. Re-assemble in reverse order.

6 bolts to be torqued to (20lbf-ft) (27Nm) (see Torque sequence detail A1.5)Ensure all o-rings (3 off) are in place before assembly.

Page 6 of 42

Page 7: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

LOWER HEAD ASSEMBLY SECTION A1A1.2a SILENCER REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Lie dryer down.4. Remove valve cover.5. Remove silencer.

A1.2b SILENCER REASSEMBLE1. Re-assemble in reverse order

Page 7 of 42

Page 8: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

LOWER HEAD ASSEMBLY SECTION A1A1.3a INLET BALL RETAINER REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Loosen and remove display.6. Remove valve cover.7. Disconnect solenoid valve plugs.8. Remove 4 bolts for ball retainer.9. Remove ball.A1.3b RE-ASSEMBLY Of INLET BALL RETAINER1. Re-assemble in reverse order as above

Torque setting for 4 bolts (2.2lbf-ft) (3 Nm)

Page 8 of 42

Page 9: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

LOWER HEAD ASSEMBLY SECTION A1A1.4a SOLENOID VALVE REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Loosen display6. Remove valve cover.7. Disconnect solenoid valve plugs.8. Remove solenoid block retainer (clip or nut)9. Remove valve stem and plunger.A1.4b RE-ASSEMBLY OF SOLENOID VALVE1. Re-assemble in reverse order as above

Torque setting on valve stems (3.6lbf-ft) (5 Nm)

Page 9 of 42

Page 10: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

LOWER HEAD ASSEMBLY SECTION A1A1.5 Torque

Torque all bolts to 27N/M

Page 10 of 42

Page 11: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 11 of 42

SECTION A2

COLUMN ASSEMBLY

A2.1

A2.2

A2.3

Desiccant Cartridge Replacement

Column Replacement

Torque sequence & Settings

Page 12: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

COLUMN ASSEMBLY SECTION A2A2.1a CARTRIDGE REPLACEMENT

1. Ensure dryer is fully depressurised.2. Remove top cover.3. Remove cartridge twist inserts.(Anti-clockwise)4. Remove cartridge from inserts

A2.1b CARTRIDGE REASSEMBLY1. Reassemble in reverse order1. Ensure o-ring on cartridge is in place.

Page 12 of 42

Page 13: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

COLUMN ASSEMBLY SECTION A2A2.2a COLUMN REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 6 lower head bolts10. Remove lower head.11. Remove top cover.12. Remove filter and cartridge inserts13. Remove 6 bolts from top head.

A2.2b COLUMN REASSEMBLE1. Re-assemble in reverse order.

6 bolts to be torqued to (20lbf-ft) (27Nm) (see Torque sequence detail A1.5)Ensure all o-rings (3 off top head and 3 off bottom head) are in place beforeassembly.

Page 13 of 42

Page 14: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

COLUMN ASSEMBLY SECTION A2A2.3 Torque Settings

Torque all bolts to 27 N/M

Page 14 of 42

Page 15: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 15 of 42

SECTION A3

UPPER HEAD ASSEMBLY

A3.1A3.2A3.3A3.4A3.5A3.6

Upper Head ReplacementCartridge Twist Insert ReplacementFilter ReplacementDrain Bowl and Auto Drain ReplacementFilter Replacement.Torque Sequence Detail

Page 16: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.1a UPPER HEAD REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove the top cover.3. Remove pipework.4. Remove front trim.5. Remove filter and cartridge twist inserts,

be careful of oulet ball falling from cartridge twists insert.6. Remove drain bowl by pushing bowl up and rotating approx 90 deg.from right to

left (as viewied from front) then pull down.7. Remove 6 bolts and lift off top head.

A3.1b UPPER HEAD REASSEMBLE1. Reassemble in reverse order.

6 bolts to be torqued to (20lbf-ft) (27Nm) (see Torque sequence detail A3)

Page 16 of 42

Page 17: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.2a CARTRIDGE TWIST INSERT REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove the top cover.3. Remove cartridge twist insert (Anti-clockwise)4. Remove cartridge from insert.5. Remove puge plug.

A3.2b CARTRIDGE TWIST INSERT REASSEMBLE1. Reassemble in reverse order.2. Set purge flow.

Page 17 of 42

Page 18: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.3a FILTER TWIST INSERT REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove the top cover.3. Remove filter twist insert.(Anti-clockwise)4. Unscrew filter.

A3.3b FILTER TWIST INSERT REASSEMBLE1. Reassemble in reverse order.

Page 18 of 42

Page 19: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.4a DRAIN BOWL and AUTO DRAIN REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove front trim.3 Loosen display pozi screws4. Unlock and remove drain bowl ,by first pushing up then rotating from left to right

as viewed from the front. Pull drain down and remove.5. Remove auto drain - (Note nut of auto drain turns into housing to remove auto

drain)

A3.4b DRAIN BOWL and AUTO DRAIN REASSEMBLE1. Reassemble in reverse order.

Auto drain to be torqued to (2.5Nm) (1.8lbf.ft)

Page 19 of 42

Page 20: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.5a FILTER REPLACEMENT1. Ensure dryer is fully depressurised and electrically isolated.2. Remove the top cover.3. Remove filter twist insert.(Anti-clockwise)4. Unscrew filter.

A3.5b FILTER REASSEMBLY1. Reassemble in reverse order.

Page 20 of 42

Page 21: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

UPPER HEAD REPLACEMENT SECTION A3A3.6a TORQUE SEQUENCE DETAIL

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Page 22: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 22 of 42

SECTION A4

PURGE SETTINGS

A4.1

A4.2

Purge Screw Replacement

Purge Adjustment

Page 23: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A4A4.1a Purge Screw Replacement.

1. Ensure dryer is fully depressurised and electrically isolated2. Remove top cover.3. Unscrew purge plugs.

A4.1b Purge Screw Reassembly1. Reassemble ensuring purge is set correctly. See A4.2

Page 23 of 42

Page 24: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A4A4.2 PURGE FLOW

DRYER MODEL

DAS 1

DAS 2

DAS 3

DAS 4

DAS 5

DAS 6

DAS 7

0.6

1.0

1.6

2.0

2.6

3.0

4.0

MUST BE SET AT MINIMUM SYSTEM PRESSURE

SCFM L/MIN

17.0

28.32

45.31

56.64

73.63

84.95

113.30

PURGE SETTING

1. Gain access to the lower head by removing the front valve cover.2. Replace silencer 1/4"bsp fitting with a suitable fitting to connect a flow

meter3. Allow dryer to cycle at its minimum pressure. (Note dryer to be in

upright position)4. Do not connect the flow meter until straight after a blow down has

occured.5. After a blow down connect flow meter and adjust one of the purge

screws. Once set to required flow remove meter and allow blow downof other chamber.

6. Set flow to this chamber.7. remove fitting and reconnect silencer.8. Reassemble valve covers.

Page 24 of 42

D14IM

D25IM

D5IM

D34IM

Page 25: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 25 of 42

SECTION A5

CONTROL BOX ASSEMBLY

A5.1

A5.2

A5.3

A5.4

A5.5

A5.6

A5.7

A5.8

A5.9

A5.10

A5.11

Exploded View of Control Box

Control Box Removal

Timer Replacement

Display Replacement

Transformer Replacement

Fuse Replacement

Solenoid Cable Replacement

Control Box Replacement

Relay Replacement

Timer Configuration

Sevice Reset Sequence

Page 26: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.1 EXPLODED VIEW OF CONTROL BOX

Page 26 of 42

Page 27: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.2 CONTROL BOX REMOVAL

A5.2a CONTROLBOX REMOVAL1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box

A5.2b CONTROL BOX REASSEMBLE1. Reassemble as above in reverse order

Page 27 of 42

Page 28: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.3aTIMER REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate and open control box.10. Remove all leads from timer board.11. Remove 4 nuts from timer board.12. Remove timer board.

A5.3b TIMER REASSEMBLE1. Reassemble as above in reverse order. 4 nuts to be torqued to (0.5Nm) (0.4lbf.ft)

Pozi retaining screws to be torqued to (0.5Nm) (0.4lbf.ft) See wiring schematic forcable positions.

Page 28 of 42

Page 29: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.4a DISPLAY REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate, and open control box.10. Disconnect display leads from timer board.11. Loosen cable gland nut and remove display.

A5.4b DISPLAY REASSEMBLE1. Reassemble as above in reverse order.See wiring schematic for cable positions.

Pozi retaining screws to be torqued to (0.5Nm) (0.4lbf.ft)

Page 29 of 42

Page 30: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.5a TRANSFORMER REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate, and 4 from the fuse access area.10. Remove transformer leads from the fuse block and timer board.11. Remove the transformer holding down nuts and remove transformer.

A5.5b TRANSFORMER REASSEMBLE1. Reassemble as above in reverse order.See wiring schematic for cable positions.

Pozi retaining screws into control box to be torqued to (0.5Nm) (0.4lbf.ft)Torque setting for 2 off transformer nuts (2Nm) (1lbf.ft)

Page 30 of 42

Page 31: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.6a FUSE REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Lie dryer down.4. Remove 4 screws on small plate.5. Remove fuse from fuse holder.

A5.6b FUSE REASSEMBLE1. Reassemble as above in reverse order.

Pozi retaining screws into to be torqued to (0.5Nm) (0.4lbf.ft)

Page 31 of 42

Page 32: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.7a SOLENOID CABLE REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate, and open control box.10. Disconnect soleniod cables from timer board.11. Loosen cable gland nuts and remove solenoid cables

A5.7b SOLENOID CABLE REASSEMBLE1. Reassemble as above in reverse order.See wiring schematic for cable positions.

Pozi retaining screws to be torqued to (0.5Nm) (0.4lbf.ft)

Page 32 of 42

Page 33: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.8a CONTROL BOX REPLACEMENT

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate and 4 from fuse access area.10. Disconnect soleniod cables and display at the timer board,

loosen cable gland nuts11. Disconnect lead from fuse holder to transformer and mains lead12 .Remove control box.

A5.8b CONTROL BOX REASSEMBLE1. Reassemble as above in reverse order.See wiring schematic for cable positions.

Pozi retaining screws into control box to be torqued to (0.5Nm) (0.4lbf.ft)

Page 33 of 42

Page 34: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.9a RELAY REPLACEMENT (OPTIONAL)

1. Ensure dryer is fully depressurised and electrically isolated.2. Remove pipework.3. Remove front trim.4. Lie dryer down.5. Remove valve cover.6. Disconnect solenoid valve plugs.7. Loosen display8. Remove control box9. Remove 9 screws from timer base plate.10. Remove cables from relay.11. Loosen relay holding down nuts and remove relay.

A5.9b RELAY REASSEMBLE1. Reassemble as above in reverse order.See wiring schematic for cable positions.

Torque setting on relay nuts (2Nm) (1.5lbf.ft)Pozi retaining screws to be torqued to (0.5Nm) (0.4lbf.ft)

Page 34 of 42

Page 35: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.10a TIMER CONFIGURATION

Dryer running with a pressure in excess of 7 bar (Timer Configuration)The Dryer is factory set to 6 bar min operating condition. If the minimum pressure isin excess of 7 bar the jumper in side the control box requires altering1. Remove control box2. Remove 9 screws from timer base plate to give access to timer board.3. Move jumper to position 2.A5.10b TIMER CONFIGURATION REASSEMBLY1. Reassemble as above in reverse order.

Page 35 of 42

Page 36: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A5A5.11 SERVICE RESET SEQUENCE

Once the dryer has been serviced and all pipework connected, the timer boardrequires resetting.To reset the timer do not switch on the air.Remove the reset button on the control box, Insert a small terminal driver in to thehole and depress and hold the reset button.Switch the mains power on holding the reset button for 5 seconds.Remove ternminal driver and switch off mains.Wait 5 seconds before commencing start up sequence of dryer and replace resetbutton.

Page 36 of 42

Page 37: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 37 of 42

SECTION A6

RECOMMENDED TOOL LIST

Page 38: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

SECTION A6Recommended Tool List

SOCKETS. 5.5mm 7.0mm and 16.0mmALLEN KEY SOCKETS. 6mm and 8mmFLAT BLADE SCEWDRIVERPOZI SCREWDRIVERFLAT BLADE TERMINAL DRIVEWIRE STRIPPERSPLIERSTORQE DRIVER (0.6NM)TORQUE WRENCH (5-40Nm)TOGGLE BAR 5dia x 300mm longALLEN KEY 4mmALLEN KEY 3/16"SPANNER 17mmSPANNER 14mm6" ADJUSTABLE SPANNERGREASEPTFE TAPEDRAIN BOWL SPANNERTUBE CUTTERS

Page 38 of 42

Page 39: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Page 39 of 42

SECTION A7

SCHEMATIC DIAGRAMS.

A7.1

A7.2

A7.3

Wiring Schematic (230V)

Wiring Schematic (115V)

Piping and Instrumentation Schematic

Page 40: IR D5IM-D34IM Desiccant Dryer Maintenance Guide
Page 41: IR D5IM-D34IM Desiccant Dryer Maintenance Guide
Page 42: IR D5IM-D34IM Desiccant Dryer Maintenance Guide
Page 43: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Correction Factors D5IM to D34IM

Page 1 of 2

Model Selection Chart

Nominal Capacity Model

m3/hr cfm D5IM 5.1 3 D14IM 13.6 8 D25IM 25.5 15 D34IM 34 20

Capacity at 100 psig (7 barg) and 95°F (35°C) inlet

Correction Factors

Sizing Factors for Ingersoll Rand Modular Desiccant Air Dryers

Inlet Pressure Inlet Temperature ºC (ºF)

barg psig 35 (95) 40 (104) 45 (113) 50 (122) 4 58 0.63 0.61 0.55 0.46 5 73 0.75 0.73 0.66 0.55 6 87 0.88 0.85 0.77 0.64 7 100 1 0.97 0.88 0.73 8 116 0.97 0.94 0.85 0.71 9 135 1.08 1.05 0.95 0.79 10 145 1.18 1.14 1.04 0.86 11 160 1.29 1.25 1.14 0.94 12 175 1.4 1.36 1.23 1.02

Dew Point Correction Factors

Outlet Dew Point ºC ºF

Correction Factor

-40 -40 1 -70 -94 0.7

Inlet temperature, inlet pressure, required air flow and pressure dew point must be established before an adsorption air dryer can be specified for your application. Once these operating conditions are known, you can select the most economical adsorption dryer using the dryer sizing chart on the previous page and the model selection chart.

Example

Select a dryer for a compressor producing, at full load 8 cfm (13.60 m3/hr) at 87 psig (6 barg) with 95°F (35°C) air inlet temperature with a pressure dew point of -40°F (–40°C).

Temperature and Pressure

Step 1

Page 44: IR D5IM-D34IM Desiccant Dryer Maintenance Guide

Correction Factors D5IM to D34IM

Page 2 of 2

On the sizing chart locate the inlet temperature 95°F (35°C).

Step 2

At 95°F (35°C), read down the chart to 87 psi g (6 bar g) operating pressure, the correction factor is 0.88. The correction factor for the pressure dew point is 1.0. At the operating temperature and pressure, the capacity of the adsorption dryer will be 0.88 of the capacity at ISO 7183 rating conditions. No correction for the pressure dew point.

Step 3

To adjust the required flow for ISO 7183 rating conditions, divide the required flow by 0.88

Example: Sizing Capacity = Actual Capacity Sizing Factor x DPF

Sizing Capacity = 8 cfm 0.88 x 1

= 9.1 cfm (15.5 m3/hr)

Step 4

Using the model selection chart, select a dryer which has a rated capacity of 9.1 cfm (15.5 m3/hr) or larger. Selected model is a D25IM.


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