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18063 Rev E  06/17

(800) 234-4239

networketi.com

Environmental Technology, Inc.

We Manage Heat 

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Low Cost Air Dehydrator

MODEL EDH–4

Environmental Technology, Inc.

1850 N Sheridan Street • South Bend, IN 46628

(574)233-1202 • Fax (574)233-2152

Toll Free (800)234-4239 • Fax (888)234-4238

www.networketi.com • [email protected]

Installation and Operation Manual

Содержание EDH-4

Страница 1: ...e Manage Heat MANUAL Low Cost Air Dehydrator MODEL EDH 4 Environmental Technology Inc 1850 N Sheridan Street South Bend IN 46628 574 233 1202 Fax 574 233 2152 Toll Free 800 234 4239 Fax 888 234 4238 w...

Страница 2: ...ehydrator are capable of generating as much as 1 2 psig 82 7 mbar Proper safety practice requires treating all pneumatic components with care Operating Temperature Verify adequate air flow and power s...

Страница 3: ...Additional Equipment Required for Installation 6 Initial Inspection 6 Location of Installation 6 Mounting the EDH 4 7 Preparation and System Set up 8 Principal Considerations 8 Power Connection 8 Pne...

Страница 4: ...into the transmitter from the antenna when the antenna is not tuned properly Water in the transmis sion line will de tune the antenna and cause a higher VSWR PART NUMBER DESCRIPTION 18138 Desiccant ED...

Страница 5: ...itions reduce system performance Description The EDH 4 Air Dehydrator is an economical manually regenerative air dehydrator for waveguide envi ronments Air is pressurized by a twin head vibratory pump...

Страница 6: ...procedure Defective operation to test effective operation 1 Attach power to the EDH 4 2 Seal outlet plug thumb or kink in hose 3 Pump stops 4 LED display reads between 30 and 50 5 Remove seal LED disp...

Страница 7: ...least 5 pounds 2 4 kg The locations of the mounting points are shown in Figure 3A Narrow and Figure 3B Wide 5 22 132 6mm 13 63 346 1mm 12 63 320 7mm 2 25 57 2mm 4 81 122 2mm 7 00 177 8mm 19 00 483mm 1...

Страница 8: ...recommended to account for this buildup Power Connection The EDH 4 uses a universal 100 VAC to 240 VAC at 50 60 Hz power supply This eliminates the need to set voltage during the installation or havi...

Страница 9: ...re in SI units is 99 mbar displayed as 99 the decimal point displayed to the lower right of the numerals indicates mbar mode To assess the Percentage Desiccant Absorption Capacity remaining quickly pr...

Страница 10: ...replace or regenerate the desiccant This alarm is reset by depressing MODE during power up Both relays close at power off Table 2 near right Alarm Relay Connector Pin Assignments Figure 7 far right E...

Страница 11: ...en recorded a Change Desiccant two letter error code CD on the front panel display is issued to indicate a need to regenerate or replace the desiccant PRESSURE SOUTH BEND INDIANA U S A www networketi...

Страница 12: ...ote Servicing should be performed by qualified personnel The desiccant used in the EDH 4 Dehydrator is known as an indicating silica gel Care should be taken to prevent the dust from entering the resp...

Страница 13: ...ottle on the EDH 4 is accessible below the top panel The steps are 1 Remove power and vent system of pressurized air 2 Remove four 4 attachment screws from top panel Fig 11 lift and remove top panel 3...

Страница 14: ...ube under control panel wiring Brown tube to Pump Pump Brown tube to Pump When reinserting the desiccant bottle into the EDH 4 note the mark next to the nozzle on the bottom of the bottle This mark in...

Страница 15: ...PRESSURE LED display If the silica particles are white renew the desiccant Refer to the Maintenance section of this manual HF Low Temperature Verify that the electronic enclosure temperature is above...

Страница 16: ...Type Non Programmable Single Can ister Desiccant Dehydrator Regeneration Method Manual Regeneration or Replacement Regeneration Indication Desiccant Color Change and Compressor Run Time Outlet Dew Poi...

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