Regenerative Heatless Desiccant Dryer System

Regenerative Heatless Desiccant Dryer System
Regenerative Heatless Desiccant Dryer System
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or
property damage! Retain instructions for future reference.
DESCRIPTION
The desiccant dryer system utilizes the process of adsorption in
which molecules accumulates on the surface of an adsorbent,
isolating the molecules from its compound. In the case of the
dryer, water molecules accumulate on desiccant bead adsorbent, removing them and other harmful contaminants from the
airstream. It utilizes a twin-tower design to dry the air coming
from the compressor in one tower while the other tower is
being regenerated for future use.
Regeneration is achieved by a process known as purging in
which a portion of the dried air from the pressurized tower is
directed back over the desiccant beads in the depressurized
tower. A heatless desiccant dryer uses no heating elements to
regenerate the adsorbent. The dry air used to purge the desiccant beads of moisture is considered “wasted” air since it isn’t
recoverable for application use and is for that reason engineered to a minimum.
An additional purge saving mode of operation ensures that the
dryer is operating most efficiently yet providing a dependable
dew point even under continuous load. Dryers capable of
achieving pressure dew points as low as –100oF are available.
SAFETY GUIDELINES
A SEPARATE SAFETY BOOKLET IS PROVIDED
ALONG WITH THIS MANUAL. READ AND UNDERSTAND THE SAFETY BOOKLET. This manual contains
information that is very important to know and understand.
This information is provided for SAFETY and to PREVENT
EQUIPMENT PROBLEMS. To help recognize this information, observe the following symbols.
Danger indicates an imminently
hazardous situation which, if not avoided, WILL result in
death or injury.
Warning indicates a potentially
hazardous situation which, if not avoided, COULD result in
death or serious injury.
Caution indicates a potentially
hazardous situation which, if not
avoided, MAY result in minor or
Notice indicates important
information, that if not followed,
may cause damage to equipment.
Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA
1-888-769-7979 - www.powerexinc.com
SPECIFICATIONS
Product
Regenerative Heatless Desiccant Dryer,
MDD Series
Dew Point Capacity
Zander KMT-RX-2: +20oF Dew Point at
100 PSI
DH DME-RX-2: 0oF Dew Point at 100 PSI
KMT & DME Reds: -40oF Dew Point at
100 PSI
Operating Pressure
60 psig—125 psig (4,14 bar—8,62 g) at inlet
Operating Temperature
35oF—122oF (2oC—50oC) at inlet
Overpressure Protection ASME Safety Valve Factory Set and Sealed
Outlet Air Connections
MDD1008, 1358: 1 1/2” FNPT
MDD1658: 2” FNPT
Flow Capability @ 100
PSI
MDD1008: 135 CFM, MDD1358: 156 CFM,
MDD1658: 211 CFM
California Ordinance
462 (L) (2)
Meets Requirements of this Ordinance
Control Enclosure
NEMA 1 50/60 Hz
Power Requirements
110 V –120 V AC ± 10%, Alternate 230V
50/60 Hz
Fuse
Type FNM 7 amp
Est Weight
MDD1008: 1196 lbs, MDD1358: 1250 lbs.,
MDD1658: 1750 lbs
Pg 1
IN592401AV 01/14
Regenerative Heatless Desiccant Dryer System
SAFETY INFORMATION
CALIFORNIA PROPOSITION 65
This product contains
chemicals, including lead,
known to the State of California to cause birth defects and
other reproductive harm. Wash hands after handling.
GENERAL
Failure to comply with these
instructions can lead to personal injury and/or property damage.
Always notify the appropriate
medical facility staff before
commencing any work on the compressed air system; air
level and quality may be affected during maintenance.
Dryer under
pressure. Isolate
and depressurize the dryer and its components before commencing any electrical
maintenance.
Electrical shock
hazard exists.
Different parts of the dryer carry electrical
current. Any potential must be properly deenergized before commencing any electrical
maintenance.
The dryer’s desiccant towers are
spring loaded. Extreme caution
should be taken if/when disassembling. Please contact the
manufacturer for assistance.
Hazard from sudden air ejection. Normal operation of the
dryer consists of sudden vessel
depressurization. Ear and eye
risks are present. Always wear proper protection equipment
when around the dryer.
1.
2.
3.
Pg 2
Read all manuals included with this
product carefully. Be thoroughly familiar with the controls and the proper use
of the equipment.
Follow all local electrical and safety
codes as well as in the United States, the National Electrical Codes (NEC) and Occupational Safety and Health
Act (OSHA).
Only persons well acquainted with these rules of safe
operation should be allowed to use the unit.
Breathable Air Warning
This unit is not equipped and should not be used
“as is” to supply breathing quality air. For any
application of air for human consumption, you
must fit the compressed air source with suitable inline safety and alarm equipment. This additional
equipment is necessary to properly filter and purify
the air to meet minimal specifications for Grade D
breathing as described in Compressed Gas Association Commodity Specification G 7.1-1966, OSHA 29
CFR 1910. 134, and/or Canadian Standards Associations (CSA).
DISCLAIMER OF WARRANTIES
IN THE EVENT THE UNIT IS USED FOR THE
PURPOSE OF BREATHING AIR APPLICATION
AND PROPER IN-LINE SAFETY AND ALARM
EQUIPMENT IS NOT SIMULTANEOUSLY
USED, EXISTING WARRANITIES ARE
VOIDED, AND POWEREX DISCLAIMS ANY
LIABILITY WHATSOEVER FOR ANY LOSS,
PERSONAL INJURY OR DAMAGE.
4.
Before each use, inspect compressed air system and
electrical components for signs of damage, deterioration,
weakness or leakage. Repair or replace defective items
before using.
5.
Check all fasteners at frequent intervals for proper tightness.
6.
Only persons experienced and properly trained in compressed air systems or licensed electricians should service or repair this dryer.
7.
The dryer is intended for drying compressed air. Under
no circumstances should it be used to dry any other
gases.
8.
Do not operate the dryer if a leak is detected.
9.
Do not operate the dryer at pressures and/or temperatures above the marked maximum allowable.
10. Do not operate the dryer if any signs of damage are detected or if the dryer isn’t operating as described in this
manual.
11. No conversions or modifications should be made to the
dryer without prior approval by the manufacturer.
Regenerative Heatless Desiccant Dryer System
TERMS AND DEFINITIONS
The two phases are described below:
DUPLEX DRYER SYSTEM
A.
Drying Phase: A tower in a drying phase receives humid air through the pre-filter and then flows upward
through the desiccant bed. At full system pressure the
desiccant dehumidifies the air by means of adsorption.
The dry air is then distributed out the top of the tower
for different uses:
B.
Regeneration Phase: Parallel to the tower in a drying
phase the opposing tower is in one of four stages of the
regeneration phase.
Per the NFPA 99 Standard for Healthcare Facilities, the
dryer system is completely redundant, having one dryer
capable of peak demand and with one dryer in reserve at all
times. Each dryer consists of two desiccant towers, one prefilter, one after-filter, regulator, safety relief valve, a dew
point dependent control system and bypass plumbing. The
system includes a pre-piped and pre-wired dew point monitor, carbon monoxide monitor, and certifier’s test port.
Only one dryer should be in
service at any given time,
unless a dryer switchover procedure is being performed.
CLOSE THE ISOLATION VALVES FOR THE DRYER
NOT IN SERVICE.
1. Expansion: The expansion stage takes place immediately after a tower switches from the drying phase to
the regeneration phase. During this stage the tower
pressure is expanded to ambient through the purge
muffler over the course of a couple seconds, accompanied by a sudden blast.
DRYER 1 & 2
Each dryer is a regenerative heatless desiccant dryer. It
employs a pressure swing adsorption cycle and purge saving
control system. Refer to page 6 for dryer flow schematic.
The pre-filter equipped with a separator element prevents
any liquids and particulates from entering the dryer. It
comes with an automatic condensate drain valve and filter
element change indicator. The after-filter stops any desiccant dust from leaving the dryer. It comes with an indicator
as to when the element needs to be replaced. Each regulator
is factory set at 55 PSIG and protected with a safety relief
valve rated for 75 PSIG.
PRESSURE SWING ADSORPTION CYCLE
The dryer uses a fully automatic pressure swing adsorption
cycle in which one tower is online in a drying phase while
the other is offline either preparing or waiting for the next
drying phase. The towers rotate between phases based on
either time or dew point status, depending on the mode of
operation.
2. Purge: A portion of the dry air from the opposing
tower in the drying phase is bled through an orifice and
directed through the top of the regenerating tower now
at ambient pressure. The moisture stored in the desiccant bed is picked up by this dry air and expelled out
the purge muffler.
3. Pressurize: After the tower is purged, the orifice
continues to bleed dry air into the regenerated tower,
building it up to system pressure. This prevents the
dryer’s pre-filter and desiccant bed from being shocked
with a blast of air upon tower switchover. Shocking a
desiccant bed not only puts a strain on the effectiveness
of the filtration and drying systems but can cause the
desiccant material to dust. That dust will clog the afterfilter and decreases the dryer’s capacity to dry the air
passing through it.
4. Standby: (KMT’s only) When the dryer is switched
into the variable mode of operation, the regenerating
phase is capable of a fourth stage in which the regenerated tower is standing by, fully pressurized, ready for
the next drying phase. The control system will switch
to this tower as soon as the measured dew point has
reached the set point for the switchover.
TOWER SWITCHOVER
When the dryer control system calls for a tower switchover,
either by reaching a certain time or dew point, the towers
switch the function each is performing and the process starts
over again.
Pg 3
Regenerative Heatless Desiccant Dryer System
INSTALLATION
INSTALLATION SITE
1.
2.
3.
4.
5.
6.
The dryer must be located in a clean, well lit and well
ventilated area.
The installation site must be protected against the
weather. The area should be free of excessive dust,
toxic or flammable gases, moisture, water and direct
sunlight.
Never install the dryer system where the ambient temperature will drop below +34oF or rise above +104oF or
where humidity is high.
The installation area must be level, firm, and capable of
holding the weight of the dryer system.
The site should provide sufficient spacing around the
system in order to be able to carry out routine maintenance on each dryer. At least three feet is recommended
from the front and sides of the dryer system.
Never install the dryer system outside.
MOVING AND SECURING
If it is necessary to move a freestanding dryer, proper technique is extremely important. The dryer should only be lifted
from its structural points such as the frame or tank brackets,
never from its piping. Caution should be taken when lifting a
dryer due to its high center of gravity. Once the dryer is in
position, use suitable anchoring fasteners in all four holes
provided to secure the dryer frame to the mounting location.
Suitable vibration dampening devices should be used if that is
a potential condition at the installation site.
POWER CONNECTION
The main dryer control box requires a stable 120VAC ± 10%.
The individual dryer control boxes are pre-wired to that main
panel. No other installation procedures to power the dryer are
necessary.
WIRING
All electrical connections to the main system control panel
must be performed by a qualified electrician. Installations
must be in accordance with local and national electrical
codes.
DEW POINT MONITOR CONNECTION
The dew point monitor’s relay output contacts are wired to a
relay in the main system control panel. The individual dryer
control boxes are pre-wired to that main panel. No other
installation procedures to run the dryer in a dew point dependant mode are necessary.
Pg 4
CONNECTIONS
The dryer system inlet and outlet are equipped with female
NPT ports which differ in size depending on the dryer model.
Ensure before plumbing in and out of the dryer that all compressed air lines are clean, undamaged, and won’t subject any
stress to the dryer’s piping.
1.
2.
3.
4.
5.
Make sure the piping is lined up without being strained
or twisted when assembling the piping for the dryer.
Appropriate expansion loops or bends should be installed at the dryer to avoid stresses caused by changes
in hot and cold conditions.
Piping supports should be anchored separately from the
dryer to reduce noise and vibration.
Never use any piping smaller than the dryer connection.
Use flexible hose to connect the outlet of the dryer system to the customer piping so that the vibration of the
dryer does not transfer to the piping.
Regenerative Heatless Desiccant Dryer System
OPERATION
BEFORE START UP
1.
2.
3.
4.
5.
6.
7.
8.
Make sure all safety warnings, labels and instructions
have been read and understood before continuing.
Remove any shipping materials.
Confirm that the electric power source and ground have
been firmly connected.
Be sure all pressure connections are tight.
Check to be certain all safety valves, etc., are correctly
installed.
Securely mount all panels and guards.
Check that all fuses, circuit breakers, etc., are the proper
size.
Make sure the inlet and after filters are properly installed.
TURNING THE DRYER SYSTEM ON
The dryer system is supplied power through a three position
switch on the main system control panel labeled Dryer 1—
BOTH—Dryer 2. After the appropriate dryer is selected,
that dryer’s control box has electric potential.
9.
Dryer 1 is now capable of drying air and switching into
the economy mode.
10. SLIGHTLY open the outlet source valve and allow the
compressed air system downstream of the dryer to pressurize. This will prevent the dryer from being overloaded.
11. SLOWLY open the source valve to its fully open position. Dryer 1 is now in service and fully operational.
OPERATION
Variable Cycle
The drying and regenerating phases are based on an elapse of
time as well as dew point. If the dew point is –10oF or above,
the control system operates the dryer in the fixed cycle mode.
In the case that the demand on the dryer is low and the dew
point is below –15oF, the dryer will switch into an economy
mode in which the purge flow is eliminated and the drying
phase time is increased.
START UP
Ensure that all isolation valves (dryer, monitor, and
source) are closed.


Ensure the electrical connections are in safe contact and
in good condition.

Ensure the compressed air system upstream of the dryer
is pressurized.
1.
At the main system control panel there will be a switch
labeled Dryer 1—BOTH—Dryer 2. Place this
switch to the Dryer 1 position. This will apply power
to the dryer control box for Dryer 1.
SLOWLY open the inlet isolation valve to Dryer 1.
Avoid sudden pressure build-up in every circumstance
as it can cause damage to the dryer.
Dryer 1 will now begin cycling between its two desiccant towers.
Check for airflow from Dryer 1’s purge mufflers.
SLOWLY open Dryer 1’s outlet isolation valve, making sure the source valve is still closed.
SLOWLY open the monitor isolation valve(s) allowing
air to flow to the CO and dew point monitor’s sensors.
Check for airflow from the dew point sensor’s orifice
tube.
Allow the dryer to cycle in this state for at least 15 minutes. During this time, test all joints for any leaks using
a leak detector spray or suitable alternative. Repair any
detected leaks as they will cause degraded performance
of the dryer.
2.
3.
4.
5.
6.
7.
8.
Pg 5
Regenerative Heatless Desiccant Dryer System
Pg 6
Regenerative Heatless Desiccant Dryer System
MAINTENANCE
PREVENTATIVE MAINTENANCE SCHEDULE
To ensure reliable, uninterrupted dryer operation, follow the
recommended preventative maintenance schedule provided in
the dryer manual. If done so, the dryer system should provide
years of dependable service.
MONTHLY SWITCHOVER PROCEDURE
In order to maintain proper and unified performance from the
desiccant air dryer system, it is recommended that the dryers
be alternated on a regular schedule (once every month). The
following procedure explains alternating two systems, where
Dryer 1 is the online dryer and Dryer 2 is the offline dryer.
1. At the main system control panel there will be a switch
labeled Dryer 1—BOTH—Dryer 2. Place this
switch to the BOTH position. This will apply power to
both dryers’ control boxes.
2. SLOWLY open the inlet isolation valve to Dryer 2.
Avoid sudden pressure build-up in every circumstance
as it can cause damage to the dryer.
3. Dryer 2 will now begin cycling between its two towers.
4. Check for airflow from Dryer 2’s purge mufflers.
5. Allow both dryers to run for a period of 15 minutes to
ready Dryer 2. At this point Dryer 2’s outlet isolation
valve is still closed, and Dryer 1 remains the online
dryer. During this time, test all plumbing joints on
Dryer 2 for leaks with a leak detector spray or suitable
alternative. Repair any detected leaks as they will cause
degraded performance of the dryer.
6. SLOWLY open Dryer 2’s outlet isolation valve.
7. Close Dryer 1’s outlet isolation valve.
8. Wait 15 seconds for Dryer 1to fully pressurize and
close Dryer 1’s inlet isolation valve.
9. At the main system control panel, rotate the dryer selector switch labeled Dryer 1—BOTH—Dryer 2 to the
Dryer 2 position. Dryer 1is now dormant. Dryer 2
is in service and fully operational.
MAINTENANCE SHUT DOWN
All of the maintenance items that take place at 6 month intervals or more require that the dryer be shut down in order for
them to take place. The following procedure explains how to
shut down a dryer that needs maintenance labor.
1. Bring the reserve dryer online by following steps 1
through 7 of the Monthly Switchover Procedure.
2. Close the outlet isolation valve of the dryer that needs
maintenance.
3. Close the inlet isolation valve of the same dryer.
4. Rotate the dryer cycle switch on the main control box to
the BOTH position and allow the dryer to continue
cycling until the purge exhaust has fully depressurized
all towers. Check all towers’ pressure gauge to confirm
5.
6.
that the system is depressurized.
At the main system control panel, rotate the dryer selector switch labeled Dryer 1—BOTH—Dryer 2 from
the BOTH to whichever is now online.
Isolate and disconnect the electrical power to the dryer.
Follow all Lock out/Tag out procedures while maintenance is being carried out.
CLEANING OR REPLACING THE PRE-FILTER’S
AUTO DRAIN VALVE
The auto drain valve is a float mechanism condensate trap. It
automatically opens and drains the collected condensate as
soon as the level of fluid rises to lift the float. If the valve is
suspected to be malfunctioning it should be cleaned or replaced. A typical characteristic of valve malfunction is a
permanent flow noise from the drain outlet signifying the
float mechanism is stuck open or the float mechanism is stuck
closed indicated by water buildup in the bowl. In either case,
the valve needs to be removed for cleaning or replacement.
To do this:
1.
2.
3.
4.
5.
6.
7.
First perform a maintenance shut down, making sure the
dryer needing maintenance is fully depressurized and
isolated from all electrical potential.
Remove the drain hose from the auto drain outlet.
Remove the filter bowl by twisting counter-clockwise.
Loosen and remove the retaining nut at the bottom of the
filter bowl.
The auto drain valve can now be pushed out the top of
the bowl to be cleaned or replaced.
Place the clean or new auto drain valve in the bowl and
tighten the retaining nut.
Return the filter bowl securely to the body and the drain
hose to the auto drain outlet.
REPLACING THE FILTER ELEMENTS
The filter elements will eventually become clogged with particulates and contaminants and should be replaced at regular
intervals. A clogged filter element creates too large of a pressure drop across the filter and can hurt the dryer’s performance. The differential pressure indicators on top of the filters
will change from green to red when the pressure drop across
the filter is too high, usually signaling an element that needs
to be replaced.
1.
2.
3.
4.
First perform a maintenance shut down, making sure the
dryer needing maintenance is fully depressurized and
isolated from all electric potential.
Remove the filter bowl by twisting counter-clockwise.
Unscrew the filter element from the body and properly
discard it.
Screw in the new element and replace the filter bowl
securely.
Pg 7
Regenerative Heatless Desiccant Dryer System
MAINTENANCE CONT.
5.
Disposed of the old filter element in an environmentally
safe way, in accordance with all current statutory
regulations.
REPLACING THE PURGE MUFFLER
The purge muffler is a critical component of the dryer. If it
becomes clogged, dryer performance will degrade quickly
due to the restraints on the purge stage of the regeneration
phase. A characteristic of a clogged muffler is a tower pressure gauge reading anything but zero while that tower is
purging.
1.
2.
3.
First perform a maintenance shut down, making sure the
dryer needing maintenance is fully depressurized and
isolated from all electric potential.
Remove the purge muffler by unscrewing it from the
purge solenoid valve.
Screw the new muffler into place.
REPLACING THE DESICCANT AND CHECK
VALVES
Refer to the dryer manual for maintenance.
Pg 8
Regenerative Heatless Desiccant Dryer System
TROUBLESHOOTING GUIDE
Problem
Control valve not
cycling
Cause
Conductor Connection
Corrective Action
Check and verify conductor connection; see wiring schematic
Control valve failure
1.
Replace control valve.
2.
Pre-filter auto drain
clogged
2.
A clogged pre-filter auto drain will allow liquid condensate to
enter the desiccant tower. Check the auto drain to confirm that it
is operating correctly.
3.
Air receiver auto drain
malfunctioning
3.
An air receiver with a malfunctioning auto drain will send more
than intended amounts of moisture towards the dryer, possibly
resulting in a degradation of dew point. Confirm the auto drain
is working properly in regular intervals.
4.
Leakage
4.
All plumbing joints and filter valves should be checked for leaks.
Any small leak can degrade the dew point and result in a shortened life span.
5.
Too much back pressure
during regeneration phase
5.
Too much back pressure on a regenerating tower hinders its ability to purge itself of moisture in preparation for the next drying
phase. The causes listed below should be investigated.
Clogged purge muffler
1. Contact an authorized distributor for a replacement purge muffler.
Purge solenoid valve is
malfunctioning
2.
The purge solenoid valve should be removed and inspected for
repair or replacement. See dryer manual.
3.
Remove, inspect, and clean the check valve; replace if necessary.
See dryer manual.
Dew point degradation 1.
1.
Back pressure on a
desiccant tower during
the regeneration phase 2.
3.
Check valve leaking
Dryer not switching
out of economy cycle
when dew point is
above –10oF
Wrong connection with dew
point monitor
Check the dew point monitor wiring diagram and confirm that the
proper controller outputs are relaying to the dryer.
Dryer is not switching
into the economy
cycle
1.
Wrong connection with
dew point monitor
1. Check the dew point monitor wiring diagram and confirm that the
proper controller outputs are relaying to the dryer.
2.
Dew point degradation
2. Check the possible causes from the list above.
No pressure build up
before tower switchover; Dryer is
continuously purging
Purge solenoid valve is not
closing
The purge solenoid valve should be removed and inspected for repair
or replacement. See dryer manual.
No expansion in tower Purge solenoid valve is not
during regeneration
opening
phase
The purge solenoid valve should be removed and inspected for repair
or replacement. See dryer manual.
Pg 9
Regenerative Heatless Desiccant Dryer System
TROUBLESHOOTING GUIDE CONT.
Problem
Cause
Dew point monitor not
receiving power
1.
Check that the dew point monitor is powered and in normal operation. It sends the signal to the dryer controller to switch in
and out of the economy cycle.
2.
Leakage
2.
Check the auto drain valve of the dryer pre-filter to confirm that
it’s not stuck open. Clean or replace if necessary.
1.
Power supply interrupted
1.
Check and verify that the correct dryer is receiving power from
the main panel dryer selector switch.
2.
Blown fuse in control box
2.
Replace fuse.
Excessive compressed 1.
air consumption
No dryer light
Pg 10
Corrective Action
Regenerative Heatless Desiccant Dryer System
Powerex Limited Warranty – Applicable to Non-OEM Customers in the U.S. & Canada Only
Warranty and Remedies. (a) General. Powerex warrants each Compressor System, Vacuum System, Vacuum Pump, Compressor
Air-End, or Powerex branded Accessory (collectively “Products”, individually each a “Product”) to be free from defects in material and
workmanship (“Defects”) at the date of shipment. This warranty shall apply only to Products that are purchased and used in the
United States of America and in Canada. EXCEPT AS SET FORTH BELOW, NO OTHER WARRANTY, WHETHER EXPRESS
OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, SHALL
EXIST IN CONNECTION WITH THE SALE OR USE OF SUCH PRODUCTS. TO THE EXTENT PERMITTED BY LAW, ANY AND
ALL IMPLIED WARRANTIES ARE EXCLUDED. All warranty claims must be made in writing and delivered to Powerex in
accordance with the procedures set forth on its website (www.powerexinc.com), or such claim shall be barred. Upon timely receipt of a
warranty claim, Powerex shall inspect the Product claimed to have a Defect, and Powerex shall repair, or, at its option, replace, free
of charge, any Product which it determines to have had a Defect; provided, however, that if circumstances are such as to preclude
the remedying of Defect by repair or replacement, Powerex shall, upon return of the Product, refund to buyer any part of the
purchase price of such Products paid to Powerex. Freight for returning Products to Powerex for inspection shall be paid by buyer.
The warranties and remedies herein are the sole and exclusive remedy for any breach of warranty or for any other claim based on
any Defect, or non-performance of the Products, whether based upon contract, warranty or negligence.
(b)
(i) Standard Period of Warranty – Parts and Labor - The purchase of any system includes our standard warranty.
Powerex warrants and represents all Products shall be free from Defects for the first eighteen (18) months from the date of shipment
by Powerex, or twelve (12) months from the documented date of startup, or five thousand (5,000) hours of use, whichever occurs
first. During such warranty period, Powerex shall be fully liable for all Defects in the Products (the “Product Defects”), i.e., all costs
of repair or replacement, which may include “in and out” charges, so long as the Products are located in the United States or
Canada, and the Products are reasonably located and accessible by service personnel for removal. “In and out” charges include
the costs of removing a Product from buyer’s equipment for repair or replacement.
(ii) Premium Period of Warranty – Parts and Labor – In order to be eligible for premium warranty coverage, a premium
warranty for each system must be purchased when order is placed. Powerex warrants and represents all Products shall be free
from Defects for the first thirty (30) months from the date of shipment by Powerex, or twenty-four (24) months from the documented
date of startup, or seven thousand five hundred (7,500) hours of use, whichever occurs first. During such warranty period, Powerex
shall be fully liable for all Defects in the Products (the “Product Defects”), i.e., all costs of repair or replacement, which may include
“in and out” charges, so long as the Products are located in the United States or Canada, and the Products are reasonably located
and accessible by service personnel for removal. “In and out” charges include the costs of removing a Product from buyer’s
equipment for repair or replacement.
(c) Additional Period of Warranty – Parts Only (No Labor). In addition to the above, Powerex warrants each Powerex branded
Compressor Air- End and Vacuum Pump shall be free of Defects for a period of forty-two (42) months from the date of shipment by
Powerex, or thirty-six (36) months from the documented date of startup, or ten thousand (10,000) hours of use, whichever occurs first.
Supplier’s repair or replacement of any Product shall not extend the period of any warranty of any Product. This warranty applies to the
exchange of part(s) found to be defective by an Authorized Powerex Service Representative only.
(d) Replacement Pumps – Parts Only (No Labor). For any replacement Air-End or Vacuum Pumps installed on a Powerex manufactured system or unit after any initial warranty period has expired or where another warranty does not apply for any reason, Powerex
warrants that the Air-End or Vacuum Pumps shall be free of Defects for a period of thirty-six (36) months from the date of shipment by
Powerex or ten thousand (10,000)hours of use, whichever comes first. For any replacement Air-End or Vacuum Pumps installed on a
system that was not manufactured by Powerex after any initial warranty period has expired or where another warranty does not apply
for any reason, Powerex warrants that the Air-End or Vacuum Pumps shall be free of Defects for the first twelve (12) months from the
date of shipment by Powerex. Supplier’s repair or replacement of any Product shall not extend the period of any warranty of any Product. This warranty applies to the exchange of part(s) found to be defective by an Authorized Powerex Service Representative only.
(e) Replacement Motors – Parts Only (No Labor). For any replacement motor installed on a Powerex manufactured system or unit
after any initial warranty period has expired or where another warranty does not apply for any reason, Powerex warrants that the replacement motor shall be free of Defects for the first twelve (12) months from the date of shipment by Powerex. For any replacement
motor installed on a system or unit that was not manufactured by Powerex after any initial warranty period has expired or where
another warranty does not apply for any reason, Powerex warrants that the replacement motor shall be free of Defects for the first
ninety (90) days from the date of shipment by Powerex. Supplier’s repair or replacement of any Product shall not extend the period of
any warranty of any Product. This warranty applies to the exchange of part(s) found to be defective by an Authorized Powerex Service
Representative only.
(f) Replacement Parts – Parts Only (No Labor). For other replacement parts besides motors, Air-End or Vacuum Pumps installed
on a Powerex manufactured system or unit after any initial warranty period has expired or where another warranty does not apply for
any reason, Powerex warrants that such replacement parts will be free from Defects for the first twelve (12) months from the date of
shipment by Powerex. For other replacement parts besides motors, Air-End or Vacuum Pumps installed on a system or unit that was
not manufactured by Powerex after any initial warranty period has expired or where another warranty does not apply for any reason,
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Powerex warrants that such replacement parts will be free from Defects for the first twelve (12) months from the date of shipment by
Powerex. For other replacement parts besides motors, Air-End or Vacuum Pumps installed on a system or unit that was not manufactured by Powerex after any initial warranty period has expired or where another warranty does not apply for any reason, Powerex
makes no warranties. Supplier’s repair or replacement of any Product shall not extend the period of any warranty of any Product. This
warranty applies to the exchange of part(s) found to be defective by an Authorized Powerex Service Representative only.
(g) Coverage The warranty provided herein applies to Powerex manufactured units or systems only.
(h) Exceptions. Notwithstanding anything to the contrary herein, Powerex shall have no warranty obligations with respect to Products:
(i) that have not been installed in accordance with Powerex’s written specifications and instructions;
(ii) that have not been maintained in accordance with Powerex’s written instructions;
(iii) that have been materially modified without the prior written approval of Powerex; or
(iv) that experience failures resulting from operation, either intentional or otherwise, in excess of rated capacities or
in an otherwise improper manner.
(i) The warranty provided herein shall not apply to: (i) any defects arising from corrosion, abrasion, use of insoluble lubricants, or negligent attendance to or faulty operation of the Products; (ii) ordinary wear and tear of the Products; or (iii) defects arising from abnormal
conditions of temperature, dirt or corrosive matter; (iv) any OEM component which is shipped by Powerex with the original manufacturer’s warranty, which shall be the sole applicable warranty for such component.
Limitation of Liability. NOTWITHSTANDING ANYTHING TO THE CONTRARY HEREIN, TO THE EXTENT ALLOWABLE UNDER
APPLICABLE LAW, UNDER NO CIRCUMSTANCES SHALL POWEREX BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTAL,
PUNITIVE, SPECULATIVE OR INDIRECT LOSSES OR DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATED
TO ANY OF THE PRODUCTS OR GOODS SOLD OR AGREED TO BE SOLD BY POWEREX TO BUYER. TO THE EXTENT ALLOWABLE UNDER APPLICABLE LAW, POWEREX’S LIABILITY IN ALL EVENTS IS LIMITED TO, AND SHALL NOT EXCEED, THE
PURCHASE PRICE PAID.
Warranty Disclaimer. Powerex has made a diligent effort to illustrate and describe the Products in its literature, including its Price
Book,accurately; however, such illustrations and descriptions are for the sole purpose of identification, and do not express or imply a
warranty that the Products are merchantable, or fit for a particular purpose, or that the Products will necessarily conform to the illustrations or descriptions.
Product Suitability. Many jurisdictions have codes and regulations governing sales, construction, installation, and/or use of Products
for certain purposes, which may vary from those in neighboring areas. While Powerex attempts to assure that its Products comply with
such codes, it cannot guarantee compliance, and cannot be responsible for how the product is installed or used. Before purchase and
use of a Product, please review the Product applications, and national and local codes and regulations, and be sure that the Product,
installation, and use will comply with them.
Claims. Any non-warranty claims pertaining to the Products must be filed with Powerex within 6 months of the invoice date, or they will
not be honored. Prices, discounts, and terms are subject to change without notice or as stipulated in specific Product quotations.
Powerex shall not be liable for any delay or failure arising out of acts of the public enemy, fire, flood, or any disaster, labor trouble, riot
or disorder, delay in the supply of materials or any other cause, whether similar or dissimilar, beyond the control of Company. All shipments are carefully inspected and counted before leaving the factory. Please inspect carefully any receipt of Products noting any discrepancy or damage on the carrier’s freight bill at the time of delivery. Discrepancies or damage which obviously occurred in transit are
the carrier’s responsibility and related claims should be made promptly directly to the carrier. Returned Products will not be accepted
without prior written authorization by Powerex and deductions from invoices for shortage or damage claims will not be allowed.
UNLESS OTHERWISE AGREED TO IN WRITING, THE TERMS AND CONDITIONS CONTAINED IN THIS LIMITED WARRANTY
WILL CONTROL IN ANY TRANSACTION WITH POWEREX. Any different or conflicting terms as may appear on any order form now
or later submitted by the buyer will not control. All orders are subject to acceptance by Powerex.
Powerex - 150 Production Drive - Harrison, Ohio 45030 - USA
1-888-769-7979 - www.powerexinc.com
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