Lexmark DD-520 User Manual

Size:
297.67 Kb
Download

107 W. Main Street, Worthington, PA 16262

Phone: 724-297-3416

Fax: 724-297-5189

URL: http://www.airtak.com

e-mail: airtak@airtak.com

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

DELIQUESCENT DRYER

MODELS DD-48THRUDD-5000

SPECIFICATIONS:

Maximum Working Pressure: 150 PSIG

Maximum Inlet Temperature: 110°F

SAFETY INFORMATION

DO NOT REMOVE CAP ON FILL PORT UNTIL ALL PRESSURE IS OUT OF DRYER.

DO NOT REMOVE OR ADJUST ANY EQUIPMENT ON DRYER UNTIL ALL PRESSURE IS OUT OF THE DRYER.

DO NOT OPERATE DRYER ABOVE MAXIMUM WORKING PRESSURE.

DO NO ALTER VESSEL IN ANY WAY, SUCH AS WELDING OR GRINDING.

LOCATION

For maximum performance, always locate dryer where the inlet compressed air temperature is lowest. Inlet air temperature to dryer must be no more than 10°F above the lowest temperature in the air system. Outlet dew point (level of dryness) from dryer depends on inlet temperature of the compressed air.

If temperature of air from the compressor is not within this 10°F range, an aftercooler is required to reduce the air temperature before it is processed through the dryer. An air-cooledaftercooler sized for a 10°F approach is recommended for installation before the dryer. The aftercooler compensates for changing atmospheric temperatures by exchanging heat between the atmospheric and compressed air so that inlet compressed air temperature to the dryer is within the 10°F range. A separator is then required on the aftercooler outlet to remove the condensed water.

Where air lines or equipment are located outdoors, install dryer outdoors in coolest location.

In systems where air usage fluctuates or there are sudden demands, protect dryer against air flow surges.

For best efficiency, locate dryer where air pressure is highest in system; more air can be dried at higher pressures.

INSTALLATION

1.Install dryer in an upright (vertical) position on a level surface with fill port on top. On wall-mountedmodelsDD-12thruDD-48,provide strapping or additional support to prevent stress on piping to dryer.

2.Install by-passpiping with inlet, outlet andby-passvalves to isolate dryer for adding desiccant.

3.Connect inlet air piping to dryer inlet (lower connection) and outlet piping to dryer outlet (top connection). Compressed air must flow through dryer from bottom to top of vessel or air will not be sufficiently dried.

WARNING: ALWAYS INSTALL PARTICULATE FILTER AFTER DRYER TO PREVENT ANY ACCIDENTAL FLOW OF MATERIALS FROM DRYER INTO DOWNSTREAM EQUIPMENT.

4.Connect drain line to coupling on bottom of dryer vessel, and install manual valve at end of line. Note: Install motorized drain (optional equipment) as indicated on instructions supplied with automatic drain.

5.Install pressure relief valve to conform to OSHA Standard 1910.169; also check local codes.

6.Remove cap from fill port on top of dryer and pour in recommended amount of Deli-Drydesiccant (see chart below). Check to make sure that vessel is filled to within 1 or 2" of dryer top.

7.Replace cap on fill port, and tighten securely.

8.Close inlet and outlet shutoff valves; also close drain valve.

2

9.Start compressor: then slowly open dryer inlet valve to pressurize dryer gradually.

10.Open outlet valve slowly; close by-passvalve.

CAUTION!!!!!

MAKE SURE THAT DRYER IS NOT SUBJECTED TO AIR SURGES WHILE IT IS BEING PRESSURIZED.

OPERATION

START-UP:Slowly open outlet shutoff valve and then inlet valve. Closeby-passvalve.

SHUT-DOWN:Maintain pressure in dryer duringshut-downby following this procedure before shutting off air supply to dryer: Openby-passvalve. Then close dryer inlet and outlet shufoff valves.

MAINTENANCE

*Drain dryer after every 8 hours of operation.

Open manual drain valve and allow all collected drain solution to discharge from dryer. On dryers equipped with an automatic drain, check periodically by pushing test button to make sure that drain is operating properly.

WARNING

Always drain dryer regularly. If drain solution reaches an abnormally high level, air flow may force solution into system piping and cause damage to downstream equipment.

*Inspect tablet level through sight window regularly. Add DELI-DRY TABLETS when top of bed is level with sight window. Use the following procedure:

1.Isolate dryer from air system by closing inlet and outlet valves; open by-passvalve.

2.Open drain valve; depressurize dryer completely.

3.After all pressure is out of dryer, unscrew cap on fill port.

4.Add enough tablets so that vessel is filled.

5.Replace cap on fill port and tighten securely.

6.Slowly open outlet valve and allow air to bleed through drain valve.

7.Close drain valve, and open inlet valve slowly to pressurize dryer graduallly.

8.Close by-passvalve.

3

Dimensions & Weights (inches & pounds)

Model No.

Heigh

Vessel

Inlet/Outlet

Height

Fill Port

Deliquescent

Vessel

 

t

Diameter

Connections

to

(Diameter)

Tablets (Initial fill)

Weight (LB)

 

 

 

 

Inlet

 

 

 

 

 

 

 

 

 

 

 

 

 

DD-48

37

8

1

5

2

 

40

85

DD-72

53

14

2

18.5

2

 

160

210

DD-100

55

14

2

18.5

2

 

175

220

DD-150

57

14

2

18.5

2

 

190

230

DD-220

55

20

2

19.5

3 x

4

345

320

DD-370

57

20

2

19.5

3 x

4

370

360

DD-520

67

30

3

22

3 x

4

975

655

DD-740

72

30

3

22

3 x

4

1120

779

DD-970

72

36

4 Flg.

26

4 x

6

1350

985

DD-1250

90

42

4 Flg.

15

11 x

15

1500

1425

DD-1500

102

42

4 Flg.

15

11 x

15

2000

1650

DD-1750

105

48

4 Flg.

15

11 x

15

2450

1800

DD-2000

108

54

6 Flg.

18

11 x

15

2900

2450

DD-2500

110

60

6 Flg.

18

11 x

15

3650

2850

Maximum Capacities (SCFM)

Model No.

70 PSIG

80 PSIG

90 PSIG

100 PSIG

125 PSIG

150 PSIG

 

 

 

 

 

 

 

DD-48

35

39

43

48

58

68

DD-72

53

59

65

72

87

103

DD-100

73

82

90

100

121

143

DD-150

110

123

135

150

182

215

DD-220

161

180

198

220

267

315

DD-370

270

303

333

370

450

531

DD-520

380

426

468

520

633

746

DD-740

540

607

666

740

901

1062

DD-970

708

795

873

970

1181

1392

DD-1250

925

1032

1141

1250

1522

1794

DD-1500

1107

1238

1369

1500

1826

2153

DD-1750

1292

1444

1597

1750

2131

2512

DD-2000

1477

1651

1825

2000

2435

2871

DD-2500

1846

2064

2282

2500

3044

3589

AIR/TAK WARRANTY POLICY

4

Air/Tak products will be warranted to be free from defects in materials and workmanship for a period of one year from date of shipment or up to one year from the verified date of installation not to exceed 15 months. Date of installation will be verified upon receipt of the completed Warranty Registration Card. All Air/Tak refrigerated dryers will additionally be warranted on parts only (excluding fan motors and drain valves) for a period of two years from the date of shipment. Also, deliquescent and regenerative air dryer pressure vessels and refrigerated air dryer heat exchangers have a 5-yearprorated warranty.

All damaged pressure vessels and heat exchangers returned to AIR/TAK for warranty consideration must be returned freight prepaid. Warranty will be determined after factory inspection. Failure to return a damaged heat exchanger or pressure vessel will result in warranty denial.

Repairs, adjustments, parts, etc. are limited to actual labor cost provided that such defects are promptly reported and approved following AIR/TAK's warranty procedures. In no event shall the cost of repairs exceed the actual cost of materials and labor.

AIR/TAK or its representatives reserve the right to decide which warranty items are authorized. AIR/TAK shall not be liable for incidental or consequential damages which may result from a breach of the warranty described above.

For more information on warranty policies and procedures, contact your authorized AIR/TAK Distributor.

AIR/TAK's line of quality compressed air system products includes:

COMPRESSED AIR SYSTEM FILTERS * AIR-COOLEDAFTERCOOLERS

REFRIGERATED AIR DRYERS * CAD COMBINATION AFTERCOOLER DRYER SYSTEMS RAD-PAKREFRIGERATED AIR DRYER/FILTER PACKAGES * HEATLESS REGENERATIVE AIR DRYERS

HLD-PAKHEATLESS REGENERATIVE AIR DRYER/FILTER PACKAGES

BLOWER PURGE REGENERATIVE AIR DRYERS * EXTERNALLY HEATED REGENERATIVE AIR DRYERS

AIR CHILLERS * FLUID CHILLERS

For an authorized distributor near you, contact Air/Tak at:Air/Tak Inc. 107 W. Main Street, Worthington, PA 16262 Phone: 724.297.3416 Fax:724.297-5189e-mail:airtak@airtak.com

5