KAESER KADW Series Instruction Manual
KAESER KADW Series Instruction Manual

KAESER KADW Series Instruction Manual

Pressure-swing heatless desiccant compressed air dryers

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3248404
Rev. A
02/10
INSTRUCTION MANUAl
KADW Series: Models 7 through 50 scfm
Contents
1.0 GeneraL InFOrmaTIOn ............................................... 2
2.0 DesCrIpTIOn ................................................................ 2
3.0 InsTaLLaTIOn ................................................................ 5
4.0 OperaTIOn ................................................................... 8
5.0 maInTenanCe .............................................................. 10
WarranTy .......................................................................... 12
IMPORTANT
READ PRIOR TO STARTING THIS EQUIPMENT
UNPACKING
This shipment has been thoroughly checked, packed and
inspected before leaving our plant. It was received in good
condition by the carrier and was so acknowledged.
1) Check for Visible Loss or Damage. If this shipment shows
evidence of loss or damage at time of delivery to you,
insist that a notation of this loss or damage be made on
the delivery receipt by the carrier's agent.
2) Check for Concealed Loss or Damage. When a shipment
has been delivered to you in apparent good order, but
concealed damage is found upon unpacking, notify the
carrier immediately and insist on his agent inspecting
the shipment. Fifteen days from receipt of shipment is
the maximum time limit for requesting such inspection.
Concealed damage claims are not our responsibility as our
terms are F.O.B. point of shipment.
SERVICE DEPARTMENT: (724) 745-3038
PRESSURE-
SWING (Heatless)
DESICCANT
COMPRESSED
AIR DRYERS

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Summary of Contents for KAESER KADW Series

  • Page 1: Table Of Contents

    3248404 Rev. A 02/10 INSTRUCTION MANUAl KADW Series: Models 7 through 50 scfm Contents 1.0 GeneraL InFOrmaTIOn ..........2 2.0 DesCrIpTIOn ..............2 3.0 InsTaLLaTIOn ..............5 4.0 OperaTIOn ..............8 5.0 maInTenanCe .............. 10 WarranTy ................12 IMPORTANT READ PRIOR TO STARTING THIS EQUIPMENT...
  • Page 2: General Information

    1.0 General Information 2.0 Description 2.1 Function Dual tower regenerative desiccant dryers are utilized to dry CAUTION compressed air to dew points below the freezing point of water or reduce the moisture content to low levels for use in pressurized devices- critical process applications.
  • Page 3 2.2 Operation Compressed air enters the dryer and is directed to TOWer 1 through valve (a) and then exits the dryer through shuttle valve (B). a portion of the dried air is throttled to near atmo- spheric pressure by means of an orifice (C). This extremely dry, low pressure air flows through and regenerates the desiccant in TOWer 2 and is then exhausted through purge/ repressurization valve (D) and exhaust muffler (e) to atmo-...
  • Page 4 2.3 Air By-Pass Assembly 2.3.2 Models KADW 20A, KADW 25A, KADW 30A, KADW 35A, and KADW 50A an optional air by-pass assembly is available for all models. The by-pass assembly includes two manually operated three- When ordered with the dryer, the by-pass assembly is factory way valves.
  • Page 5: Installation

    3.0 Installation 3.1 Dimensions, Connections, Weight DIMENSIONS in (mm) MODEL WEIGHT NUMBER lb (kg) KADW 7A 28.02 (712) 17.52 (445) 1.15 (29) 15.23 (387) 6.69 (170) 3.74 (95) 30.5 (775) 3.74 (95) 5.31 (135) 27.5 (699) 55 (25) KADW 13A 28.02 (712) 17.52 (445) 1.15 (29)
  • Page 6 3.2 Electrical Specifications AMPS MODEL WATTS HOLDING INRUSH KADW 7A 27.5 KADW 13A 27.5 KADW 20A 27.5 KADW 25A 31.8 KADW 30A 31.8 KADW 35A 33.0 KADW 50A 17.0 LEGEND SOL 1 Inlet Valve SOL 1 Inlet Valve Models Models 7 - 35 KADW 7A - KADW 35A SOL 2...
  • Page 7 3.3 Dryer Location in a Compressed Air System IMPORTANT: The compressed air supply inlet should be periodically checked to ensure that equipment design specifications are not exceeded. normally the compressor PREFILTERS AFTERFILTERS installation includes intercoolers, aftercoolers, separators, receivers, or similar equipment which adequately pretreat the compressed air supply in order to avoid excessively high DESICCANT air temperatures and liquid slugging of down-stream equip-...
  • Page 8: Operation

    4.0 Operation 2. maximum inlet flow at various pressures To determine maximum inlet flow at inlet pressures other 4.1 Start-up than 100 psig (7kgf/cm ), multiply inlet flow from Table a. During the initial start-up, slowly pressurize dryer to 1 by multiplier from Table 2 that corresponds to system full line pressure and check entire system for leaks.
  • Page 9 2. average purge Flow step 2: Find maximum purge Flow by multiplying The average purge Flow (apF) is the actual amount of maximum purge Flow at 100 psig from Table 1 by flow averaged over the entire purge/repressurization purge Flow Correction Factor from Table 4: cycle.
  • Page 10: Maintenance

    4.5 Dryer Shutdown Amount of desiccant required for complete change To shut down the dryer, de-energize using the on-off switch MODel DeSICCAnT ReQuIReD (power-on light extinguished). Unit will remain pressurized. (kg) 4.6 Depressurization KADW 7A (3.2) To depressurize unit KADW 13A 12.8 (5.8) KADW 20A...
  • Page 11 5.3 Repair Parts MODel KADW 7A KADW 13A KADW 20A KADW 25A KADW 30A KADW 35A KADW 50A STRAIneR (TOP & BOTTOM) 3209715 3209715 3209715 3209716 3209716 3209716 3209716 SHuTTle VAlVe BODY (OuTleT VAlVe) 3244971 3244972 3244973 3244974 3244975 3244976 3244977 SHuTTle (OuTleT VAlVe) 3244978...
  • Page 12: Warranty

    WARRANTY The manufacturer warrants the product manufactured by it, when properly installed, operated, applied, and maintained in accordance with procedures and recommendations outlined in manufacturer’s instruction manuals, to be free from defects in material or workmanship for a period of one (1) year from the date of shipment to the buyer by the manufacturer or manufacturer’s authorized distributor, or eighteen months from the date of shipment from the factory, whichever occurs first, provided such defect is discovered and brought to the manufacturer’s attention within the aforesaid warranty period.

This manual is also suitable for:

Kadw 7aKadw 20aKadw 30aKadw 35aKadw 50a

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