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LIMITED WARRANTY

 

Warranties and Limitation of Liability

 

: Pneumatech (“the Company”) warrants that it will, in its sole

discretion, either repair or replace Products and/or Components of Products sold by it which have defects in
material or workmanship (covering Components and reasonable labor) provided: 

 

(a)

 

 Customer notified the

Company of any claim of defect in material or workmanship within fourteen (14) months from date of shipment
from the Company’s factory or twelve (12) months from the date of initial operation of Product, whichever occurs
first; 

 

(b)

 

 Customer holds the Product or Component for inspection by the Company’s representative; 

 

(c)

 

 Customer

returns the Product(s) or Component(s) only with Company authorization, within forty-five (45) days after such
authorization, with transportation charges prepaid and shipped pursuant to the Company’s directions; and 

 

(d)

 

 the

Product(s) or Component(s) are found defective in materials or workmanship upon examination by the Company.
Products or Components shall not be considered defective if they substantially fulfill performance requirements set
forth in the Company literature and are manufactured in accordance with the Company’s specifications or
government specifications when applicable.  Replacement / spare Components will be warranted for six (6)
months from the date of shipment from the Company’s factory, or for the balance of the original warranty period
(or extended warranty period, if registered, see below), whichever is longer.

 

Available Extended Warranty:  

 

In addition to the above warranty, if the Customer registers the warranty of a

standard price book Pneumatech dryer or a standard price book ConservAIR Intermediate Control

 

®

 

 (“Specified

Products”) via the internet at 

 

www.pneumatech.com

 

 or 

 

www.conservair.com

 

 

(i)

 

 the above warranty will

be extended to twenty-four (24) months from the date of shipment from the Company’s factory (covering
Components and reasonable labor) as to such Specified Products and 

 

(ii)

 

 the Company warrants that it will, in its

sole discretion, either repair or replace heat exchangers on refrigerated dryers and valves on PH, PE, PB or PHC
style regenerative dryers and valves on Intermediate Controls

 

®

 

 for defects in material or workmanship (covering

Components only) provided:

 

 (a)

 

 Customer notified the Company of any claim of defect in material or

workmanship within sixty (60) months from date of shipment from the Company’s factory; 

 

(b)

 

 Customer holds the

Product or Component for inspection by the Company’s representative; 

 

(c)

 

 Customer returns the Component(s) only

with Company authorization, within forty-five (45) days after such authorization, with transportation charges
prepaid and shipped pursuant to the Company’s directions; and 

 

(d)

 

 the Component(s) are found defective in

materials or workmanship upon examination by the Company. Components shall not be considered defective if
they substantially fulfill performance requirements set forth in the Company literature and are manufactured in
accordance with the Company’s specifications or government specifications when applicable. These extended
heat exchanger and valve warranties cover only parts, not labor, and are not pro-rated in any way.

The warranties stated herein will not extend to Products or Components that: 

 

(a)

 

 have been subject to misuse,

neglect, accident, or that have been repaired or altered by, or at the direction of Customer, without the Company’s
written authorization, or 

 

(b)

 

 have not been maintained or installed by Customer pursuant to the Company’s

guidelines. The Company shall not be liable for any expense, liability or loss incurred by Customer nor for any
special, consequential, liquidated or other damage or penalties suffered by Customer or anyone else with respect
to any Product or Component.

 

There are no warranties which extend beyond the warranties stated herein. The
foregoing warranty is in lieu of all other warranties whether expressed, implied or
statutory, including implied warranties of merchantability or fitness for any
particular purpose. No representation or warranty of any person on behalf of the
Company shall extend the liability or responsibility of the Company beyond the
terms of the warranties stated herein. In no event shall the Company be liable for
any loss of profits, loss of use, incidental, consequential or special damages to any
person or company resulting from the use of the Company Products.

Pneumatech Inc.
4909 70th Avenue
Kenosha, WI 53144
Phone: 262-658-4300
Fax: 262-658-1945
www.pneumatech.com

Содержание AD-1500

Страница 1: ...Printed in U S A Publication No OM A 75 March 2006 Rev 4 Owner s Manual NON CYCLING REFRIGERATED AIR GAS DRYER ...

Страница 2: ... Doing this will extend the warranty to 24 months from date of shipment from Company s factory See back page for actual Warranty details DATE OF PURCHASE MODEL SERIAL NO Record above information from nameplate Retain this information for future reference Replacement Price 25 00 ...

Страница 3: ...art Up and Operation 6 Design Conditions 6 Start Up Procedure 6 Operating Range and Control Settings 7 Digital Dry Guard DDG Controller Operation 7 Shutdown Procedure 9 Operating Conditions 9 Maintenance 10 Air Dryer Maintenance 10 Automatic Drains 10 Compressor 12 Expansion Valve 12 Hot Gas Bypass Valve 12 Refrigerated Air Dryer Service CheckList 14 Troubleshooting 15 ...

Страница 4: ...aged in any manner Notify authorized service facility for examination repair or other adjustments 3 USE SUITABLE PARTS ACCESSORIES Do not use air pressurized accessories or parts in the air system not suitable for the maximum air pressure 4 RELEASE AIR PRESSURE SLOWLY Fast moving air will stir up dust and debris which may be harmful Release air pressure slowly when depressurizing your system to av...

Страница 5: ...URE GAUGE REMOVES 66 MOISTURE AIR COOLED AFTERCOOLER 2 P RECEIVER T C PREFILTER REGENERATIVE AIR DRYER PARTICULATE AFTERFILTER 4 5 TO PLANT USE 37 F RECEIVER REFRIGERATED COALESCING AFTERFILTER DRAIN R OPTIONAL 3 VALVE SYSTEM BYPASS P 6 P CONTROL OPTIONAL AUTO DRAIN 1 SEE PNEUMATECH BULLETIN PWC 1 2 SEE PNEUMATECH BULLETIN A 3 3 SEE PNEUMATECH BULLETIN A 16 4 SEE PNEUMATECH BULLETIN A 8 5 SEE PNEU...

Страница 6: ...pressed air to the air dryer which will cause premature failures Aftercoolers must be followed by a separator and an automatic drain to remove the condensed moisture before the compressed air reaches the air dryer If the condensed water is not removed at the aftercooler separator drain it will reduce the cooling capacity of the air dryer Aftercoolers will condense approximately 2 1 2 to 3 times mo...

Страница 7: ... to the dryer must meet the national NEC and local code requirements Check the voltage specified on the nameplate to the electrical power connecting to the dryer Electrical connections must be made by an electrician SCROLL COMPRESSOR Air dryers with a scroll compressor are uni directional and to function properly they must be phased correctly To turn the com pressor clockwise use a phase sequence ...

Страница 8: ...tart up Power to the air dryer can be left on to energize the crankcase heater for the off cycle during evening or weekend shutdowns 3 Check the temperature on the crankcase of the compressor to make sure the crankcase heater is working before starting the dryer 4 For water cooled Air Dryers ADW make sure the water supply Minimum Pressure 35 PSIG is available at the condenser inlet The water regul...

Страница 9: ...G R 22 air cooled units with fan cycling 190 to 210 PSIG R 22 water cooled units 3 Refrigerant Discharge Pressure R 134a 75 to 170 PSIG R 134a air cooled units 115 to 135 PSIG R 134a water cooled units 4 Refrigerant Low Pressure Switch CUT OUT 20 PSIG R 134a CUT IN 40 PSIG R 134a CUT OUT 45 PSIG R 22 CUT IN 70 PSIG R 22 5 Refrigerant High Pressure Switch 250 PSIG R 134a air cooled units 405 PSIG R...

Страница 10: ...on for different drain types The mode of operation for timed drains i e 4477 A B or C models is described below as item A The mode of operation for fully automatic float operated drains i e model 4488 is described as item B For all modes the DRAINS POWER ON LED indicates that the drain is receiving power Pushing the DRAIN TEST key will send power to the drain if it is not already receiving power A...

Страница 11: ...on the dryer bypass piping At this time the dryer is isolated and can be depressurized ready for servicing 3 Turn the power switch to the OFF position NOTE The alarm indication light red signifies the refrigerant compressor is not running The reasons can be Low suction pressure High discharge pressure Electrical problems Loss of refrigerant Dirty condenser Leaking evaporator etc Refer to Troublesh...

Страница 12: ...f start up Suction pressure below the range will cause freeze up inside the air system increasing the pressure drop across the air dryer Suction pressure above the range will reduce the refrigeration cooling capacity 5 Check the pressure drop across the air dryer at full capacity flow If it is higher than specified value normally 5 PSI or less consult factory If pressure drop increases over years ...

Страница 13: ...il J Install the drain valve in the system FIGURE 3 DRAIN VALVE Recommended Operation and Maintenance for the Particle Strainer The particle strainer should be cleaned once every week or as needed 1 Close the shut off valve on the particle strainer 2 Depressurize the drain by pressing the drain PRESS TO TEST or DRAIN TEST key 3 Unscrew bottom of the particle strainer and clean the screen FIGURE 4 ...

Страница 14: ... adjustments are needed only at the time of valve replacement Expansion valve service must be performed by a qualified refrigeration technician HOT GAS BYPASS VALVE Model AD 10 and larger air dryers come equipped with modulating hot gas bypass valves This valve maintains the refrigerant suction pressure in varying load conditions The dryer will run from no load to full load conditions without free...

Страница 15: ...Pub No OM A 75 REV 4 March 2006 13 FIGURE 6 FLOW DIAGRAM ...

Страница 16: ... _______________________________________________________________________________ 6 Air in pressure PSIG _________________________________________________________________________________ 7 Air out pressure PSIG ________________________________________________________________________________ 8 Refrigerant suction pressure when unit is operating PSIG __________________________________________________...

Страница 17: ...d 4 Safety controls open 5 Air switch open Dead end control 6 Frozen locked compressor 7 Wiring improper or loose 1 Close disconnect switch to start 2 Replace fuse 3 Turn switch off wait 15 minutes check for overload condition 4 Repair or replace 5 Check air pressure Adjust air and or switch If defective repair or replace 6 Repair or replace 7 Check wiring against diagram B Unit short cycles 1 Mot...

Страница 18: ...er 4 Location too hot 5 Defective condenser pressure switch 6 Defective fan motor 7 Fan operating in wrong direction 8 Defective water regulating valve 1 Purge or vacuum and recharge 2 Check for reason repair 3 Blow clean with compressed air 4 Cool ambient relocate unit add ventilation 5 Repair or replace 6 Replace 7 Switch two wires at disconnect 8 Adjust repair or replace H Head pressure too low...

Страница 19: ...System pressure low 2 Precooler and or evaporator clogged 3 Incorrect piping 4 Air overload 5 Unit too small 6 Excess water in unit 7 Evaporator freeze up 8 Clogged air compressor intake filter 9 Dirty air system 1 Increase pressure 2 Back flush using mild detergent Figure 2 on Page 10 3 Increase line size and or correct piping as required 4 Reduce overload 5 Add another unit or replace with large...

Страница 20: ...nd valves on Intermediate Controls for defects in material or workmanship covering Components only provided a Customer notified the Company of any claim of defect in material or workmanship within sixty 60 months from date of shipment from the Company s factory b Customer holds the Product or Component for inspection by the Company s representative c Customer returns the Component s only with Comp...

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