SHEL LAB - Horizontal Air Flow Clean Room Oven Manual

HORIZONTAL AIR FLOW
CLEAN ROOM OVEN
MODEL: CR1-2
INSTALLATION AND OPERATIONAL MANUAL
10/10
4861580
P.O. Box 627  300 N. 26th Avenue Cornelius, Oregon 97113
EMAIL:tech @ Shellab.com  INTERNET: http://www.Shellab.com
1-800-322-4897 TELEPHONE (503) 640-3000 FAX (503) 640-1366
TABLE OF CONTENTS
SECTION 1.0
RECEIVING AND INSPECTION
SECTION 2.0
GRAPHIC SYMBOLS
SECTION 3.0
INSTALLATION
SECTION 4.0
CONTROL OVERVIEW
SECTION 5.0
PRECAUTIONS
SECTION 6.0
CLEAN ROOM READY INSTRUCTIONS
SECTION 7.0
OPERATION
SECTION 8.0
MAINTENCE
SECTION 9.0
TROUBLESHOOTING AND SERVICE
SECTION 10.0 PARTS LIST
UNIT SPECIFICATIONS
SCHEMATICS
This unit is a special purpose oven for professional, industrial or educational use
where the preparation or testing of materials is done at approximately atmospheric
pressure and no flammable volatile or combustible materials are being heated or
placed near or on top of unit. This unit is not intended for hazardous or household
locations or use.
2
Section
RECEIVING AND INSPECTION
1
Your satisfaction and safety require a complete understanding of this unit. Read
the instructions thoroughly and be sure all operators are given adequate training
before attempting to put the unit in service. NOTE: This equipment must be used
only for its intended application; any alterations or modifications will void your
warranty.
1.1
Inspection: The carrier, when accepting shipment, also accepts responsibility
for safe delivery and is liable for loss or damage. On delivery, inspect for visible
exterior damage, note and describe on the freight bill any damage found, and
enter your claim on the form supplied by the carrier.
1.2
Inspect for concealed loss or damage on the unit itself, both interior and exterior.
If necessary, the carrier will arrange for official inspection to substantiate your
claim.
1.3
Return Shipment: Save the shipping crate until you are sure all is well. If for
any reason you must return the unit, first contact your customer representative
for authorization. Supply nameplate data, including model number and serial
number. Please see the manual cover for information on where to contact
customer service.
1.4
Verify that all of the equipment indicated on the packing slip is included with the
unit. Carefully check all packaging before discarding. The CR1-2 comes
equipped with 4 leveling feet, 4 shelf slides, and 2 shelves.
3
Section
GRAPHIC SYMBOLS
2
Your oven has been provided with a display of graphic symbols which is
designed to help in identifying the use and function of the available user,
adjustable components.
2.1
Indicates that you should consult your manual for
further description or discussion of a control or user
item.
2.2
Indicates “Adjustable Temperature”.
2.3
Indicates “AC Power ON”.
2.4
Indicates “High Limit Safety”.
2.5
Indicates “Manual Control”.
2.6
Indicates “Potential Shock Hazard” behind this
protective partition.
2.7
Indicates “Protective Earth Ground”.
2.8
Indicates “Unit should be recycled” (Not disposed of in
land-fill
4
Section
INSTALLATION
3
Local city, county or other ordinances may govern the use of this equipment. If you have any
questions about local requirements, please contact the appropriate local agency.
Installation of the CR1-2 requires hard wiring and should be performed by a qualified electrical
technician. The next higher circuit breaker value above the dataplate amperage may be used
provided the requirements in article 422 of the National Electric Code are met (USA) or, the
National Electric Code that applies in the country where this unit will be operating in.
Under normal circumstances this unit is intended for use indoors, at room temperatures between
5 and 40 C, at no greater than 80% Relative Humidity (at 25 C) and with a supply voltage that
does not vary by more than 10%. Customer service should be contacted for operating conditions
outside of these limits.
3.1
Power Source: The electrical supply circuit to the oven must conform to all national and
local electrical codes. Consult the oven’s serial data plate for the voltage, cycle wattage
and ampere requirements before making connection. VOLTAGE SHOULD NOT VARY
MORE THAN 10% FROM THE SERIAL PLATE RATING. This unit is intended for 50/60
Hz application. A separate circuit is recommended to prevent possible loss of product
due to overloading or failure of other equipment on the same circuit.
3.2
Location: In selecting a location, consider all conditions which might affect performance,
such as heat from radiators, ovens, autoclaves, etc. Avoid direct sun, fast moving air
currents, heating/cooling ducts and high-traffic areas. Allow a minimum of 30 cm between
the unit and walls or partitions which might obstruct free air flow.
3.3
Lifting / Handling: These units are heavy and care should be taken to use appropriate
lifting devices that are sufficiently rated for these loads. Units should only be lifted from
their bottom surfaces. Doors, handles and knobs are not adequate for lifting or
stabilization. The unit should be completely restrained from tipping during lifting or
transport. All moving parts, such as shelves and trays should be removed and doors need
to be positively locked in the closed position during transfer to prevent shifting and damage.
3.4
Leveling: The unit must sit level and solidly. Leveling feet are supplied and must be
installed in the four holes in the bottom corners of the unit. With the feet installed and the
unit standing upright, each foot can be raised by turning it in a counterclockwise direction.
Adjust the foot at each corner until the unit stands level and solid without rocking. If the unit
must be moved, turn the leveling feet all the way clockwise to prevent damage while
moving.
3.5
Cleaning: The unit chamber should be cleaned and disinfected prior to use. Remove
shelving and shelving supports and clean thoroughly, including all corners using a suitable
disinfectant that is appropriate to your application. Regular periodic cleaning is required.
Special care should be taken when cleaning around sensing heads to prevent damage.
DO NOT use chlorine-based bleaches or abrasive cleaners as this will damage the
stainless steel interior.
3.6
Place shelves in the chamber as desired.
5
Section
CONTROL PANEL OVERVIEW
4
4.1
Power Switch: The main power I/O (on/off) switch controls all power to
the unit and must be in the I/ON position before any systems are
operational.
4.2
High Limit Safety Thermostat: The High Limit Safety is an independent
temperature control that must be adjusted by a flat-head screw driver. It
prevents temperature runaway in the event that the Main Temperature
controller fails. If the chamber temperature rises above the Main
Temperature set point, the High Limit maintains temperature at its own set
point, preventing sample loss or unit degradation. Please note that it is
not recommended that the unit be allowed to operate using only the High
Limit to control temperature as temperature uniformity will suffer.
4.3
High Limit Activated: This pilot light is on when the High limit has been
activated and has taken control of the heating element. Under normal
operating conditions this pilot lamp should never be on.
4.4
Main Temperature Controller:
This is a microprocessor based
Temperature/Time Control Which has ramp and soak capabilities (Jumo).
4.5
Power Exhaust Outlet: The Power Exhaust outlet is controlled by the
Main Temperature Controller. It is located at the back of the unit next to
the power cord.
6
Section
PRECAUTIONS
5
5.1
The bottom surface of the chamber should not be used as a work
surface.
5.2
This unit has been designed with a dampered vent(s) from the chamber.
In order to work effectively and safely, some precautions will need to be
taken by the operator.
a.
In most applications, the exhaust damper will need to be open
during drying or degassing for best results.
b.
THIS OVEN IS NOT DESIGNED TO HANDLE COMBUSTIBLE
GASSES, AND IS NOT AN EXPLOSION PROOF UNIT. Do not
place explosive, combustible, or flammable materials into the
chamber.
c.
Some of the out gassed byproducts may be hazardous or
unpleasant to operating personnel. If this is the case, the exhaust
should be positively ventilated to the outside and dealt with
according to local regulations. Your dealer can provide you with a
power exhaust which greatly helps under these applications.
5.3
Do not operate near noxious fumes.
5.4
Do not place sealed or filled containers in the oven chamber.
5.5
Do not cut or remove the ground prong from the power cord. Do not use a
2-prong adapter plug.
5.6
Be sure that the power supply is of the same voltage as specified.
5.7
Disconnect the unit from its electrical source before proceeding to make
any electrical repairs or replacements.
5.8
If a mercury thermometer is used for verifying chamber temperatures and
breakage should occur, all spilled mercury MUST be completely removed
from the chamber before continuing operation.
5.9
This is NOT designed for use in Class I, II, or III locations as defined by
the National Electric Code.
5.10
This oven is not intended, nor can it be used, as a patient connected
device.
7
Section
6
MODEL CR1-2 CLEAN ROOM READY
INSTRUCTIONS
This oven has been designed to operate at class 100 standards. It is not shipped clean room
ready and the instructions below must be followed for proper installation. See Figure 2
6.1
BURN-IN OF THE HEPA FILTER
Before using this oven, it is important that the filter be burnt-in properly. During burn-in,
the Hepa filter will off gas. Because of this the intake and exhaust ports must be open,
with the exhaust ports being ducted outside. A material safety data sheet is included with
your operation literature for reference. Note that you should read Section 7.0 and have a
clear understanding of how to operate the unit prior to following this procedure.
A.
B.
6.2
To burn in filter:
1.
Set oven at: 125 C for 1 hour;
150 C for 4 hours;
175 C for 1 hour;
200 C for 1 hour.
2.
If operating temperature is higher than 200 C, continue the cycle of one
hour at 25 increments until the operating temperature is achieved.
After burn-in, the interior must be disassembled and cleaned. Make sure unit is
unplugged and cooled down before disassembly. When disassembling, use an
8/32 nut driver for removing all the cap nuts. Remove the bottom liner insert
before removing the liner side inserts. Do not remove the Hepa filter cover. After
burn-in, the filter is very delicate (like the mantel of a lantern) and will fall apart.
The casing should only be removed when replacing the filter.
CONTROL AREA EXHAUST
As part of this design the control compartment is sealed and requires a minimum of 30
CFM (Cubic Feet Per Minute) to be drawn from the control compartment exhaust port.
This is required to limit the control compartment temperature and maintain Class 100
integrity. If you are unable to exhaust the minimum 30 CFM from the control
compartment, then you must limit the maximum operating temperature to 200 C.
Operation of the unit above 200 C, without moving the required 30 CFM through the
control compartments exhaust, will result in control degradation and process failure. Not
supplying the required 30 CFM may also keep the unit from operating at class 100
specifications by allowing particulars from the control compartment to escape into the
room.
8
Figure 2
9
Section
OPERATION
7
All control functions are covered in the Jumo Manual. This is a simplified
version.
Check power supply against unit serial plate. They must match.
On ovens that need to be hard wire, must be done by a qualified electrical
technician.
7.1 Push the power switch to the I/ON position, turn the high limit thermostat
to its maximum position clockwise using a flat-head screw driver. The
main temperature controller should be illuminated. The top display is the
Process Temperature and the bottom display is the Set Point.
7.2 AUTO TUNING JUMO CONTROL FOR OPTIMUM CONTROL
Even though the control was Auto Tuned at the factory, you might choose
to tune the control to your specific Set Point.
1. Push the down arrow once.
2. Once the down arrow has been pushed, use the up and down
arrow
to achieve desired set point.
3. After reaching desired set point, the display should blink once to enter
the value.
4. To Auto Tune, push the up and down arrow
simultaneously for 2
seconds until the Set Point Display flashes Tune.
5. After Tuning Cycle is complete, the bottom display will stop flashing
Tune ( ) and return to desired Set Point.
7.3 CHANGING SET POINT ON CONTROL WHEN SETUP AS
PROGRAMABLE CONTROLLER
1. To change Set Point, push the
Down Arrow once and then use the
Up and Down Arrow to change the Setpoint.
CAUTION: If the
Up Arrow is pushed first, it will start a program and
will not allow you to change the Setpoint. To return to NORMAL
DISPLAY, push the
Up Arrow again.
7.4 CHANGING CONTROL FUNCTION TO SINLE SET POINT CONTROL
1. Push the PGM Button once and then navigate using the
Down Arrows until you reach “CONF” in the bottom display.
Up and
10
2. After you reach “CONF”, push the PGM Button again and use
Up
and Down Arrows to navigate until you reach “PRO” in the bottom
display and push the “PGM” button again.
3. The display should now read “FNCT” in the bottom display and “2” in
the top display. You will need to change the “2” to “0”. To do that,
push the “PGM” button once and the “FNCT” should start flashing.
While it is flashing, use the
Down Arrow to change the “2” to “0”.
When the “FNCT” stops flashing, push the exit button repeatedly to
return to normal display (Actual Value on Top and Setpoint Value on
Bottom.)
4. Now the control is setup as a Single Setpoint Control. Just use the
Down Arrows to change Setpoint Value.
EXAMPLE PROGRAM
Let’s say you want to have the oven to ramp up to 100°C in 30 minutes
and control for 1 hour at 100°C. Then you want to ramp up to 150° in 30
Minutes and control for 2 hours. Then you want to cool down to start Set
Point with Power Exhaust Outlet activated in one hour. See Graph:
EXAMPLE PROGRAM CHART
160
150
150
150
150
150
140
TEMPERATURE
130
120
110
100
100
100
90
80
70
60
50
40
30
25
25
20
30 MINUTES INTERVALS
You would program the control like this:
STEP1
SP01=25°
TPO01=00:30hr
STEP2
SP02=100°
TPO02=01:00hr
STEP3
SP03=100°
TPO03=00:30hr
STEP4
SP04=150°
TPO04=02:00hr
STEP5
SP05=150°
TPO05=01:00hr
STEP6
SP06=25°
TPO06=00:00hr
OC01-0000
OC02-0000
OC03-0000
OC04-0000
OC05-0100
OC06-0000
The OC parameter 0100 is the value that activates the Exhaust Outlet on
the back of the oven.
To activate the program that is entered first return to normal display by
pushing the Exit Button repeatedly.
After Normal Display is
reached, push the up arrow
once. The lower display should flash STrT
11
and a RAMP/PROGRAM symbol
will appear in the lower right side of
the display. This indicates the program is running. To stop the program,
push the up arrow
again and the RAMP/PROGRAM symbol
will
disappear and the program will end. After program ends, control returns
to previous Set Point (starting Set Point). This is explained in Section 6.5
Paragraph 4.
OFFSET CALIBRATION
This is used to match the process temperature to an independent
thermometer. The Offset Calibration is measured in one degree
increments. For example, if the process value reads 100°C and the
independent thermometer reads 98°C, the Offset Calibration would be set
at -2 to match the process value to the independent thermometer. To
navigate the control to the Offset Calibration mode, push the PGM button
once and then push the up arrow
once and the bottom display
should read CONF. Then push the PGM button again and the display
should say INP. Push the PGM button
again and the display should
read INP1. Push the PGM button
again and the display should read
SENS. This enters you in the Input/Configuration Menu. To navigate
through the menu, press the up and down arrows.
Press the up or
down arrow
repeatedly until you reach OFFS in the bottom display.
Then, push the PGM button
once, and the display will start flashing.
While flashing, use the up or down arrow
to set the desired Offset.
After the display stops flashing, push the Exit Button
the NORMAL Display is reached.
7.5
repeatedly until
Setting High Limit: Prior to setting the High Limit Control be certain the
Main temperature Control has reached the input set point and has
remained stable for several hours. This will insure that the High Limit is
set at the proper temperature. As stated in 4.3, the High Limit control
should be at maximum position, clockwise. Now turn the thermostat
counter-clockwise using a flat-head screwdriver until the High Limit
Activated indicator light comes on. Next turn the thermostat clockwise just
until the indicator light turns off. Then turn the thermostat clockwise two
(2) minor increments on its scale past the point where the indicator light
went out. This will set the High Limit at approximately 10 C above the
Main Temperature set point.
12
Section
MAINTENANCE
8.1
8
Cleaning: The unit chamber should be cleaned and disinfected on a
regular basis.
Remove shelving & shelving supports then clean
thoroughly, including all corners using a suitable disinfectant that is
appropriate to your application. Regular periodic cleaning is required.
Special care should be taken when cleaning around sensing heads to
prevent damage. DO NOT use chlorine based bleaches or abrasive
cleaners as this will damage the stainless steel interior. DO NOT use
spray cleaners that might leak through openings and cracks and get on
electrical parts or that may contain solvents that will harm the coatings.
Warning: Never clean the unit with alcohol or flammable cleaners with
the unit connected to the electrical supply. Always disconnect the unit
from the electrical service when cleaning and assure all volatile or
flammable cleaners are evaporated and dry before reattaching the unit to
the power supply.
8.2
Storage: If the oven is to be turned off it can be reactivated without
controller adjustments. Prior to storage the interior should be wiped dry to
eliminate contamination. If the unit is to be transported disconnect the
power supply, remove shelving and screw the leveling feet in. See
Section 3.3 Lifting/handling for transport instructions.
8.3
There is No Maintenance required on the electrical components. If the
unit fails to operate as specified please review the troubleshooting guide
prior to calling for technical support.
8.4
Hepa Filter Replacement: Replace the hepa filter when the control
compartment exhaust becomes noticeably reduced. The amount of time a
Hepa filter will last depends on the environment in which the unit operates.
This will have to be determined by the end user to establish standard
operating procedures or maintenance schedule.
13
Section
TROUBLESHOOTING
9
TEMPERATURE
Temperature too high
1/ controller set too high-see your Jumo users manual
2/ controller failed on – call Customer Service
3/ wiring error – call Customer Service
Display reads "HI" or "400"+
Probe is unplugged, is broken or wire to sensor is broken – trace
wire from display to probe; move wire and watch display to see
intermittent problems
Chamber temp spikes over set point
and then settles to set point
Recalibrate – see Jumo users manual
Temperature too low
1/ high limit set too low – see section 4.5
2/ controller set too low – see Jumo users manual
3/ unit not recovered from door opening – wait for display to stop
changing
4/ unit not recovered from power failure or being turned off –
incubators will need 24 hours to warm up and stabilize
5/ element failure – call Customer Service
6/ controller failure – confirm with front panel lights that controller is
calling for heat
7/ high limit failure – confirm with front panel lights that High Limit is
operating correctly
8/ wiring problem – check all functions and compare wiring to
owners manual - especially around any areas recently worked on
9/ loose connection – check shadow box for loose connections
Display reads "LO"
1/ sensor is plugged in backwards – call Customer Service
2/ if ambient room temperature is lower than range of unit –
compare set points and ambient temperature to rated specifications
in Section 10.0
Unit will not heat over a temperature
that is below set point
1/ confirm that blower motor is moving and that amperage and
voltage match data plate – check blower motor motion in shadow
box and feel for air movement in chamber
2/ confirm that set point is set high enough –turn High Limit
clockwise and see if High Limit light comes on
3 / check connections to sensor
4/ check calibration – using independent reference thermometer,
follow instructions in Jumo users manual
14
Unit will heat up at all
1/ verify that controller is asking for heat by looking for controller
light – if controller light is not on, there is a problem with the
controller
2/check amperage – amperage should be virtually at maximum rated
(data plate) amperage
3/ do all controller functions work?
4/ is the High Limit set high enough? – for diagnostics, should be
fully clockwise with the pilot light never on
5/ has the fuse/circuit breaker blown?
Indicated chamber temperature
unstable
1/ ±0.1 may be normal
2/ is blower motor working? – remove top panel and verify
movement of blower motor in shadow box
3/ is ambient room temperature radically changing – either door
opening or room airflow from heaters or air conditioning? – stabilize
ambient conditions
4/ it may happen if exhaust stack is 100% open or if power exhaust is
cycling – adjust stack to at least ¼ closed
5/ sensor miss-located, damaged or wires may be damaged- check
mounts for control and High Limit sensors, then trace wires between
sensors and controls
6/ calibration sensitivity – call Customer Service
7 / high limit set too low – be sure that High Limit is more than 5
degrees over desired set point; check if High Limit pilot is on
continuously; turn controller knob completely clockwise to see if
problem solved then follow instructions in Section 7.5 for correct
setting
8/ electrical noise – remove nearby sources of RFI including motors,
arcing relays or radio transmitters
9/ bad connection on temperature sensor or faulty sensor – check
connectors for continuity and mechanical soundness while watching
display for erratic behavior; check sensor and wiring for mechanical
damage
1 0 / bad connections or faulty solid state relay – check connectors
for mechanical soundness and look for corrosion around terminals
or signs of arcing or other visible deterioration
Will not maintain set point
1 / assure that set point is at least 5 degrees over ambient room
temperature
2/ see if ambient is fluctuating
Display and actual reference
thermometer don’t match
1/ calibration error – see Jumo users manual
2/ temperature sensor failure – call Customer Service
3/ controller failure – call Customer Service
4/ allow at least two hours to stabilize
5/ verify that reference thermometer is certified
See above
Can't adjust set points or calibration
1/ turn entire unit off and on to reset
2/ if repeatedly happens, call Customer Service
Calibrated at one temperature, but not
at another
This can be a normal condition when operating temperature varies
widely. For maximum accuracy, calibration should be done at or as
close to the set point temperature.
MECHANICAL
Door not sealing
1/ check physical condition of gasket
2/ assure that gasket is in original location
15
Motor doesn't move
1/ if shaft spins freely: check connections to motor and check voltage to
motor
2/ if shaft rubs or is frozen, relieve binding and retest
Motor makes noise
1) Make sure that the fan or blower wheel is not contacting its housing.
Adjust the motor mounting bracket position to re-center the fan or blower
wheel, if necessary.
2) Check the fan or blower wheel for damage or out of balance condition.
Replace the fan or blower wheel if it is damaged or out of balance.
3) Turn the motor shaft to make sure that it spins freely. If it binds or the
bearings make a rubbing or scrapping sound then replace the motor.
OTHER
Controller on at all times - "locked-up"
1/ Adjust set point to room temperature. If the light goes out but is still
heating, replace the solid state relay.
2/ turn unit off and on to reset
3/ if cannot change any condition on the front panel, call Customer
Service
Controller timer resets on its own
1/ confirm that power from wall is consistent and within specs
2/ call Customer Service with serial number
Front panel displays are off
1/ Check for wire damage.
Unit or wall fuse/circuit breaker is blown
1/ check wall power source
2/ compare current draw and compare to specs on data plate
3/ see what other loads are on the wall circuit
Unit will not turn on
1/ check wall power source
2/ check fuse/circuit breaker on unit or in wall
3/ see if unit is on, e.g., fan or heater, and just controller is off
4/ check all wiring connections, esp. around the on/off switch
Unit is smoking –out of box
1/ put unit under vent and run at full power for one hour.
2/ follow special burn in procedures in section 6.0.
Contamination in chamber
1/ see cleaning procedure in operator’s manual
2/ develop and follow SOP for specific application; include definition of
cleaning technique and maintenance schedule
Contamination in sample
1/ see “Contamination in chamber.
SERVICE
If this product should require service, contact your service representative. For information on
where to reach customer service please see the front cover of this manual. Should return of this
product be necessary a return Authorization number must be obtained and the product shipped
according to your representatives instructions to the indicated service center. If a return
authorization number is not obtained then the product will be returned back to the sender. To
insure prompt handling, the return authorization number should be placed on the outside of the
package and a detailed explanation of the return enclosed with the item. After receiving the
Return Authorization number, the item must be received within 30 days if not the return
authorization will be void.
16
Section
10
PARTS LIST
Units are 220 Volt.
Description
Part No.
Blower Motor
4880512
Convenience Outlet
6100526
Fan Guard
2600518
Filtered inlet
2800503
Heating Element
9570831
Hepa filter
9990503
High Limit Controller
1750571
High Limit Indicator Pilot Lamp
4650553
Leveling Feet
2700512
Main Temperature Controller
1750803
ON/OFF Switch
7850570
Power Relay
7030525
Shelf
5121194
Shelf Standards
5121189
Solid State Relay
7030533
Temperature Probe
6600519
17
UNIT SPECIFICATIONS
These units are 240 VAC. See the individual data plate of the unit for specific ratings.
Weight
Shipping
Net
CR1-2
425 lbs.
325 lbs.
Dimensions
Exterior WxDxH Interior WxDxH
(in)
(in)
CR1-2
35 x 30.25 x 38
Capacity
Cubic Feet
CR1-2
4.0
Temperature
CR1-2
POWER
CR1-2
CR1-2
Range
Uniformity
Control
40 to 200 C
+1.0 @ 110 C
0.1 C
VOLTAGE
220V
Recovery Time
17 x 20 x 20.125
AMPERAGE WATTAGE HERTZ
11.5 AMPS 2000 WATTS 50\60
150 C
(door open 30 sec)
6 min
18
WIRE DIAGRAM
19
SHELDON MANUFACTURING, INC.
LIMITED WARRANTY
(Parts only, exclusive of labor)
Sheldon Manufacturing, Inc., (“Manufacturer”) warrants for the original user of this product that all parts, not including finished goods
products, it manufactures or resells will be free from defects in material and workmanship for a period of one year from the date of
delivery of this product to the original user (the “Warranty Period”). During the Warranty Period, Manufacturer, at its election and
expense, will repair or replace parts that are proven to Manufacturer’s satisfaction to be defective, or, at Manufacturer’s option, refund the
price or credit the price of any parts that are proven to Manufacturer’s satisfaction to be defective. This warranty does not cover any labor
or damage due to accident, misuse, negligence, or abnormal use. Use of parts in a system that includes components not manufactured by
Manufacturer is not covered by this warranty. Any alteration or removal of the serial number on Manufacturer’s parts will void this
warranty. Under no circumstances will Manufacturer be liable for indirect, incidental, consequential, or special damages. The
terms of this warranty are governed by the laws of the state of Oregon without regards to the principles of conflicts of laws thereof. If any
provision of this limited warranty is held to be unenforceable by any court of competent jurisdiction, the remainder of this limited warranty
will remain in full force and effect.
This warranty is in lieu of and excludes all other warranties or obligations, either express or implied. Manufacturer expressly
disclaims all implied warranties, including without limitation, the warranties of merchantability and fitness for a particular
purpose.
For fast and efficient support, please have the following information available anytime you request service:
Model
__________
Serial No. __________
Part No.
__________
20