ECONOMY OVENS MODELS: 1310, 1320, 1321F, 1324, 1325F, 1326, 1327F INSTALLATION AND OPERATION MANUAL Sheldon Manufacturing Inc. P.O. Box 627 Cornelius, Oregon 97113 EMAIL: tech@Shellab.com INTERNET: http://www.Shellab.
TABLE OF CONTENTS SECTION 1.0 RECEIVING AND INSPECTION SECTION 2.0 GRAPHIC SYMBOLS SECTION 3.0 INSTALLATION SECTION 4.0 CONTROL PANEL OVERVIEW SECTION 5.0 PRECAUTIONS SECTION 6.0 OPERATION SECTION 7.0 MAINTENANCE SECTION 8.0 TROUBLESHOOTING SECTION 9.
1 Section RECEIVING AND INSPECTION Your satisfaction and safety require a complete understanding of this unit, including its proper function and operational characteristics. Read the instructions thoroughly and be sure that 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.
2 Section GRAPHIC SYMBOLS Your oven is provided with a display of graphic symbols to help in identifying the use and function of the available adjustable components. 2.1 This symbol, when shown, indicates that you should consult your manual for further description or discussion of a control or user item. 2.2 Indicates "AC Power" 2.3 Indicates "Adjustable Temperature" 2.4 Indicates “Manual Control” 2.4 Indicates "Heating" 2.5 Indicates "Over Temperature" 2.
3 Section 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 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%.
NOT USE chlorine-based bleaches or abrasive cleaners, as they will damage the ovens interior 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 coatings. A regular periodic cleaning is recommended. WARNING: Never clean the unit with alcohol or flammable cleaners with the unit connected to the electrical supply.
4 Section CONTROL PANEL OVERVIEW Figure 2 4.1 Power Switch: The main power I/O (on/off) switch controls all power to the oven. It must be in the I, or ON position before any systems are operational. 4.2 Main Temperature Controller: Marked SET TEMPERATURE, this control is equipped with an adjustment knob and a graduated dial. The graduated dial is marked with 10 major increments and 50 minor increments. The increments can be used as index points for setting and returning to set point temperatures. 4.
4.5 Over Temperature light: This red pilot light is marked OVERTEMPERATURE ACTIVATED and is on when the Over Temperature Thermostat has been activated and taken control of the elements. Under normal operating conditions this pilot light should never be on.
5 Section PRECAUTIONS This unit has been designed with a dampered vent from the chamber. In order to work effectively and safely, some precautions will need to be taken by the operator. 5.1 In most applications, the exhaust damper will need to be open during drying or degassing for best results. 5.2 THIS OVEN IS NOT AN EXPLOSION PROOF OVEN AND IS NOT DESIGNED TO HANDLE COMBUSTIBLE GASSES. Do not place explosive, combustible or flammable materials into the chamber. 5.
6 Section OPERATION 6.1 Power Supply: The power supply must be properly grounded (earthed) and correctly sized to match the unit data plate rating. The supply voltage must match the data plate voltage within 10%. If supplied with a detachable cord set, plug the female end into the inlet on the unit and the male plug into the supply. Assure that units requiring a fuse have a fuse installed. 6.
Figure 3 11
7 Section MAINTENANCE Note: Prior to any maintenance or service on this unit, disconnect service cord from the power supply. 7.1 Cleaning: Clean the oven interior on a regular basis. When washing interior of unit, handle gasket carefully so as not to impair the positive seal. Clean the inside of the chamber thoroughly with a disinfectant that is appropriate for your application. Make sure to rinse the cleaned surface with a damp cloth.
8 Section TROUBLESHOOTING TEMPERATURE Temperature too high 1/ controller set too high-see section 6.4 2/ controller failed on – call Customer Service 3/ wiring error – call Customer Service Chamber temp spikes over set point and then settles to set point Recalibrate – see section 6.3 and 6.4 Temperature too low 1/ Thermostat set too low – see section 6.5 2/ controller set too low – see section 6.
Indicated chamber temperature unstable 1/ ±0.1 may be normal but gravity models may vary ±2.0 degrees 2/ is ambient room temperature radically changing – either door opening or room airflow from heaters or air conditioning ? – stabilize ambient conditions . 3/ it may happen if exhaust stack is 100% open – adjust stack to at least ¼ closed.
9 SECTION PARTS LIST 1310 , 1320 & 1321F Description 115V 220V Cord Set – European Cord Set – USA Door Gasket Door Handle CIRCUIT BREAKER NA 1800516 600002 300142 1100505 1800500 101990 600002 300142 1100505 2600502 104073 9570637 9570640 9570746 X1000771 4450506 100026 4880527 103351 1750615 200021 200020 200116 5080538 5080539 200063 5080865 2600502 104073 9570642 9570644 9570802 X1000771 4450506 100026 4880528 103351 1750615 200021 200020 200116 5080538 5080539 200063 5080865 Fan 1321F Fan Blad
PARTS LIST 1324 & 1325F Description 115V 220V Main Temperature Control Over Temperature Conrol Cord Set Door Handle Heating Element 1324 Heating Element 1325F On/Off Switch Knob Main Temperature Knob Over Temperature Pilot Light Green Pilot Light Red Shelf Clips Shelf Thermometer Clip Thermometer Fan Motor 1325F Fan Blade 3” 1325F Fan Blade 4.
PARTS LIST 1326 & 1327F Description 115V 220V Main Temperature Control Over Temperature Conrol Cord Set Door Handle Heating Element 1326 Heating Element 1327F On/Off Switch Knob Main Temperature Knob Over Temperature Pilot Light Green Pilot Light Red Shelf Clips Shelf Thermometer Clip Thermometer Fan Motor 1325F Fan Blade 3” 1325F Fan Blade 4.
WIRE DIAGRAM 1310 AND 1320 9850514 18
WIRE DIAGRAM 1324 AND 1325F .
WIRING DIAGRAM 1321,1326,1327F 20
