User Manual

Stackable LCC/LCD Oven Owner’s Manual THEORY OF OPERATION

Version 1.1 15

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3. Theory of Operation

3.1. The Stackable LCC/LCD Series Oven

The Stackable LCC/LCD Series Oven (Figure 1) offers

HEPA (High Efficiency Particulate Air) filtration for

processes where minimized contamination is essential. The

removable HEPA filter is designed to provide a constant

flow of 99.97% clean air to the product being heated. The

HEPA filter with silicone seal provides 99.99% filtration.

The oven operator interface is located on the hinged

control panel at the front of the oven (Figure 1). Power

components are located on the equipment panel, behind the

hinged control panel, for easy access (Figure 8). Electrical

components are either touch-proof or are shielded with

Lexan

material to prevent accidental exposure during

maintenance and troubleshooting.

The cooling fan is controlled on/off by an event relay in

the Protocol 3 Control. The cooling fan is used for rapid

cool-down at the end of the process cycle, or to maintain

low temperature setpoints during process cycle. It may also

be turned on at the start of a process cycle to assure that

starting temperature is less than 70°C.

The nitrogen models have stainless steel water coil which

permits rapid cool down and lower temperature operation. The nitrogen oven comes with an

adjustable flowmeter a for adjusting purge rate, and needle valve for setting maintain rate,

separate solenoid valves for purge and maintain operation and a pressure relief exhaust port. An

exhaust fan which powers ON whenever the oven is running maintains consistent chamber

pressure control with varied exhaust stack conditions.

Danger!

Use care when working with nitrogen. Nitrogen presents an

asphyxiation hazard. Handle nitrogen according the safe

handling procedures listed in the material safety data sheet.

The oven has a type 304-2B stainless steel interior and a type 304-#4 stainless steel interior. All

interior seams are continuously welded on the insulation side. This protects the work chamber

from contaminated air and permits chamber washing without damaging the insulation. Interior

Trademark of SABIC Innovative Plastics.

Figure 1. Stackable LCC/LCD Series Oven.