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INSTALLATION 

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 may be performed by the end 
user.   

Under normal circumstance 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 these limits. 

3.1 Power 

Requirements:  The unit power requirements are listed on the units data plate located on the 

right front side of the oven.  Make sure your power supply matches that shown on the data plate.  
VOLTAGE SHOULD NOT VARY MORE THAN 10% FROM THE DATAPLATE RATING. These units 
are intended for 50/60HZ application.  A separate circuit is recommended to preclude loss of product 
due to overloading or circuit failure.   

3.2 Location:  Select a site for the oven which is free from extreme heat, cold or excessive air movement 

such as areas near steam radiators, stoves, other ovens, autoclaves, direct sun, heating and cooling 
ducts, etc.  Avoid high traffic areas which may reduce the accessibility to the oven.  Allow at least 
20cm of space between the oven and surrounding walls or partitions which might obstruct free 
airflow. 

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 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 (supplied) are to be installed in the holes 

at the base of the oven. Turn them counterclockwise to raise the level and clockwise to lower the 
level.  If the unit must be moved, turn the leveling feet in all the way to prevent damage.   

3.5 Cleaning:  The oven’s interior was cleaned at the factory, but not sterilized.  Remove all interior parts 

if assembled and clean the inside of the chamber thoroughly with a disinfectant that is suitable for 
your application.  Make sure to rinse the cleaned surface with a damp cloth, using water only, and dry 
the surfaces with a clean cloth. DO NOT USE chlorine-based bleaches or abrasives as they will 
damage stainless steel surfaces. 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. A similar 
periodic cleaning is recommended. 

WARNING:  Never clean the unit with alcohol or flammable cleaners with the unit connected to the 
electrical supply.  Always disconnect the unit form the electrical service when cleaning and assure all 
volatile or flammable cleaners are evaporated and dry before reattaching the unit to the power 
supply. 

3.6 

Burning In:  It is recommended that the unit go through a “burning in” process prior to operation. This 
is to eliminate the smoking of protective coatings on the element.  Read sections 4, 5 and 6 carefully 
to understand operating requirements.  To burn in turn the Overtemperature Safety to maximum and 
set the digital display to 200

°

.  Run for a minimum of one (1) hour under ventilation until smoke 

dissipates. 

Section

3

Summary of Contents for 1330FM

Page 1: ...M 1350GM 1370GM 1330FMS 1350FMS 1370FMS 1330GMS 1350GMS 1370GMS INSTALLATION AND OPERATION MANUAL Sheldon Manufacturing Inc P O Box 627 Cornelius Oregon 97113 EMAIL tech Shellab com INTERNET http www...

Page 2: ...UBLESHOOTING SECTION 9 0 PARTS LIST UNIT SPECIFICATIONS SCHEMATICS REV 01 10 4861369 This unit is a special purpose oven for professional industrial or educational use where the preparation or testing...

Page 3: ...h interior and exterior If any the carrier will arrange for official inspection to substantiate your claim 1 3 Accessories Verify that your accessory package is complete All units are equipped with a...

Page 4: ...consult your manual for further description or discussion of a control or user item 2 2 Indicates AC Power 2 3 Indicates Manual Control 2 4 Indicates Timer 2 5 C Indicates Degrees Celsius 2 6 Indicat...

Page 5: ...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...

Page 6: ...tside and dealt with according to local regulations Your dealer can provide you with a power exhaust which greatly helps under these applications 4 3 Do not operate near noxious fumes 4 4 Do not place...

Page 7: ...time using only the Overtemperature Safety as the temperature controller On S suffix models the Overtemperature Safety will shut the oven off by tripping the over temperature relay Pushing the red res...

Page 8: ...ing set point temperatures and calibration 5 8 HEATING Light This green pilot light is marked TEMPERATURE ACTIVATED and indicates when the element has been activated and the oven is heating When the s...

Page 9: ...been stabile at set point for several hours Be certain the thermometer does not touch any shelving Allow again for the temperature to stabilize until five 5 consecutive readings at one minute interva...

Page 10: ...Minute Function After the correct value for hours is set push the RESET pad again The blinking decimal will now move one digit to the right between digits 3 and 4 Pushing the UP or DOWN arrow pads wil...

Page 11: ...ized Turn on the timer switch Push and hold the RESET button until the timer display blinks This is to be sure that the pre set timed value is correct Press the START STOP button to activate the timer...

Page 12: ...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...

Page 13: ...stabilize 5 Element failure compare current draw to data plate 6 Controller failure call Customer Service 7 High limit failure confirm with front panel lights that Safety Thermostat is operating corr...

Page 14: ...mounts for control and OTP sensors then trace wires or tubing between sensors and controls 7 Calibration sensitivity call Customer Service 8 High limit set too low be sure that Safety Thermostat is s...

Page 15: ...s or is frozen relieve binding and retest Motor makes noise F suffix models 1 Make sure that the fan or blower wheel is not contacting its housing Adjust the motor mounting bracket position to re cent...

Page 16: ...r in wall 3 See if unit is on e g fan or heater and just controller is off 4 Check all wiring connections especially around the on off switch Unit is smoking Out of box This is not an uncommon occurre...

Page 17: ...70538 Heating Element 1350G Models 9570539 9570540 Heating Element 1370F Models 9570537 9570538 Heating Element 1370G Models 9570551 9570552 I O On Off Power Switch 103351 103351 Main Control W Timer...

Page 18: ...x 14 75 1330GM 21 25 x 23 75 x 33 13 x 14 x 14 75 1330GMS 21 5 x 24 5 x 33 13 x 14 x 14 75 Capacity Cubic Feet 1330FM 1 6 1330FMS 1 6 1330GM 1 6 1330GMS 1 6 Temperature Range Uniformity Recovery 1330F...

Page 19: ...5 1350GM 27 x 25 5 x 34 75 18 25 x 19 x 16 5 1350GMS 27 5 x 27 x 34 75 18 x 19 x 16 5 Capacity Cubic Feet 1350FM 4 1350FMS 4 1350GM 4 1350GMS 4 Temperature Range Uniformity Recovery 1350FM 40 above am...

Page 20: ...S 1370GM 32 5 x 28 x 36 25 23 x 20 x 18 5 1370GMS Capacity Cubic Feet 1370FM 5 1370FMS 5 1370GM 5 1370GMS 5 Temperature Range Uniformity Recovery 1370FM 40 above amb to 240 C 1 5 C at 150 C 6 min at 1...

Page 21: ...K 4880549 RY1 RY1 BLK BLK X1000124 BLK BLK RED TAN TAN RED BLK 9851070 2800502 2350509 34 3 9570538 101676 101168 1750613 101613 200020 101746 1750615 103351 LIGHTED MAIN POWER SWITCH 8 0 0 0 5 2 4 8...

Page 22: ...22 WIRING DIAGRAM FM GM 110V Models...

Page 23: ...UTRAL GROUND LOAD PROBE 1 2 4 1 2 4 9851067 12 4 08 L HEATING ACTIVATED LIGHT 200021 TIMER SWITCH X1000124 BLOWER MOTOR 100 RTD QUENCH ARC x3 101676 NEMA 6 15P EU1 16P IEC 320 INLET L2 L1 L2 L1 L2 L1...

Page 24: ...onents not manufactured by Manufacturer is not covered by this warranty This warranty is void in the event that repairs are made by anyone other than Manufacturer without prior authorization from Manu...

Page 25: ...es LA Mid Atlantic Area Baltimore MD Branford CT Bridgeport NJ S Plainfield NJ VWR Canlab Offices Mississauga Ontario Ville Mont Royal Qu bec Edmonton Alberta Or Call Direct for Specialized Service Lo...

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