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 Installation, Operation, and Maintenance                                   

          VWR Zero Air Generator 

 

Source Air Requirements 

The source of compressed air should be regulated to be greater than the 
requirements of the intended consumption. Pressure should not, however, 
exceed 860 kPa (125 psig) and flow should not exceed 1000 cc/min                         
(0.035 ft

3

/min) for Model 26000-020, and 3500 cc/min (0.124 ft

3

/min) for Model 

26000-022. Maximum operating efficiency occurs if the quality of the compressed 
air source is maintained at less than 100 ppm total hydrocarbon content (THC). 

This quality is achieved in most normal plant air systems equipped with an after 
cooler. Centrally located compressed air system filtration is normally sufficient for 
the zero air generator, but most compressed air piping systems contain some 
rust and condensed liquids. VWR International recommends a coalescing filter 
installed directly upstream from the inlet to the zero air generator to ensure the 
removal of condensed liquids and rust from the plant air system. 

If there is a risk that bulk contaminants may reach the generator inlet, use a 
secondary depth type filter (such as Parker’s optional DXE filter                                          
P/N 2002N-1B1-DX) in the source air line. This will extend the life of the primary 
inlet filter. 

If your plant air system does not sufficiently dry the air, install P/N 72-100 
(Parker’s Inlet Compressed Air Conditioner) directly upstream from the inlet of 
the zero air generator. 

The catalyst can become contaminated if compounds that contain lead, 
phosphorous, sulfur, silicates or halocarbons are present in the source air. 
If in doubt, use an activated charcoal trap (such as Parker Hannifin’s 
optional Halogenated Hydrocarbon Scrubber P/N 76080 in the source air 
line to remove these chemical compounds). 

 

 

 

 

Bulletin TI-ZAG3500-L1466

 

 

Summary of Contents for 26000-020

Page 1: ...Bulletin TI ZAG3500 L1466 VWR Zero Air Generator Models 26000 020 26000 022 Installation Operation and Maintenance Manual Bulletin TI ZAG3500 L1466 VWR Model 26000 Zero Air Generators ...

Page 2: ... will void this and all warranties User serviceable components and consumables are not covered by this warranty Peripheral devices and software not manufactured by Parker Hannifin Corporation are subject to the warranty of the original manufacturer Parts on liquid handling systems which are in contact with sample liquids such as tubing tip syringes and valves are excluded from this warranty Damage...

Page 3: ...equirements 2 Plumbing Connections 4 Operation 5 Maintenance 6 Filters 6 Catalyst Bed 7 Precautions 8 Figures in this Manual 9 Figure 1 Front and Rear Views of Model 26000 022 Figure 2 Front and Rear Views of Model 26000 020 Explanation of Warning Symbols 10 i ...

Page 4: ...ng an output gas that has a total hydrocarbon content THC of less than 0 1 parts per million as methane With this level of purity you can replace the high pressure gas cylinders rated as zero grade or ultra zero grade air that you may currently be using The system consists of three different functional areas to produce the purity level required The inlet filter is a 0 01 micron coalescing filter t...

Page 5: ...source located nearby Model Number 26000 020 26000 022 Flow 1000 cc min 0 035 ft3 min 3500 cc min 0 124 ft3 min Ambient Temperature 40 100 F 4 4 38 C 40 100 F 4 4 38 C Relative Humidity Maximum 80 up to 31 C 50 at 40 C Weight 14 lbs 6 4 kg 20 lbs 9 1 kg Dimensions 11 5 Hx6 5 Wx10 D 29x17x25cm 12 Hx6 75 Wx15 D 31x17x38cm Voltage Hz 100 125 VAC 60 Hz 100 125 VAC 60 Hz Amperage Amps 0 3 1 0 Fuse Type...

Page 6: ...ensed liquids VWR International recommends a coalescing filter installed directly upstream from the inlet to the zero air generator to ensure the removal of condensed liquids and rust from the plant air system If there is a risk that bulk contaminants may reach the generator inlet use a secondary depth type filter such as Parker s optional DXE filter P N 2002N 1B1 DX in the source air line This wi...

Page 7: ...ipment be sure to use clean stainless steel or refrigeration grade copper tubing Do not use plastic tubing for the outlet line Connect your 1 8 outlet tubing to the 1 4 NPT fitting on the outlet filter As you face the generator from the rear the outlet filter is located on the right for Model 26000 022 see Figure 1 located at the back of this bulletin For Model 26000 020 the filter is on the left ...

Page 8: ...ating temperature approximately 45 minutes 4 Begin using your instrument For Model 26000 022 1 Supply power to the generator and turn on the power switch A power light should come on indicating that power is supplied to the generator No air is needed at this time if you want a faster startup time 2 Wait for the catalyst to heat up to its operating temperature This should take approximately 30 minu...

Page 9: ...enance use the procedures detailed in this section Replacement filters may be ordered from Parker Hannifin using the following part numbers Standard Filters Parker Part Number Primary Inlet Filter Assembly 0 01 micron A914D BX Replaceable Filter Element pkg of 5 5 050 05 BXE Outlet Filter Assembly 0 01 micron A914A 95 Replaceable Filter Element pkg of 3 GS 3 050 05 95 Optional Filters Parker Part ...

Page 10: ...f the back of the cabinet for Model 26000 022 see Fig 1 When facing the generator from the front the filter is on the left side panel for the Model 26000 020 see Fig 2 3 Lift the bowl slightly and rotate the bowl portion of the filter clockwise 1 8 of a turn to remove it downward from the inlet filter assembly 4 Unscrew the filter from the filter assembly and replace 5 Thread the new filter onto t...

Page 11: ...poration technical service to order a replacement catalyst tower For 110V Model 26000 020 P N 75394 and Model 26000 022 P N BO1 0020 For 220V units Model 26000 020 P N 75394 220 and Model 26000 022 P N B01 0020 220 Precautions High temperature components are found inside the cabinet and should not require any user service The temperature of the gas at the outlet port may reach as high as 45 C 113 ...

Page 12: ...rator Power Receptacle Outlet Filter Inlet Filter Power Switch Figure 1 Front and Rear views of Model 26000 022 Outlet Filter Inlet Filter Inlet Filter Power Switch Power Receptacle Figure 2 Front and Rear views of Model 26000 020 9 Bulletin TI ZAG3500 L1466 ...

Page 13: ...ll Rights Reserved Printed in U S A June 2006 Bulletin TI ZAG3500 L1466 Prices product appearance and specifications are current at the time of printing VWR International 1310 Goshen Parkway West Chester PA 19380 Prices product appearance and specifications are current at the time of printing subject to change without notice Availability for certain products may be limited by federal state provinc...

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