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W:\ELECTRICAL\MANUAL\BENCH\GENERAL INSTRUCTIONS\BENCHOVEN INS.8-18
3-5.4 Ducts handling fumes that leave a combustible deposit shall be provided with
clean-out doors and such doors should be equipped with tight fitting doors or
covers. It is important that ovens and ducts be kept clean if they are subjected to a
build-up of flammable deposits of dust or other combustible debris. The build-up of
condensed vapors or combustible debris is a major cause of fires. Frequency of
cleaning should be based on never allowing build-up to exceed 1/8" thickness in
any location.
3-5.5 No portions of the building shall be used as an integral part of the duct.
3-5.6 Ducts handling combustible solids shall be designed to minimize the accumulation
of solids within the ducts.
3-5.7 Exhaust ducts that will contain combustible deposits of any type require automatic
sprinklers in accordance with NFPA 13 AStandard for Installation of Sprinkler
Systems@ (see Appendix A).
3-5.8 Clearance between metal ducts and stored combustible material should be at least
2-1/2 feet. Guards should be installed to assure this clearance.
3-6 THERMOMETER
3-6.1 On all standard models (except 800EF and 1000EF models), when the optional dial
thermometer is purchased, insert it into the spring steel holder so that it extends at
least three inches (3") into oven workspace.
3-7 ELECTRICAL
3-7.1 All electrical connections should be made in accordance with the appropriate local
and national codes. Refer to NFPA 70 ANational Electric Code@ (see Appendix A).
3-7.2 Properly size the electrical supply using information provided on the oven
nameplate. Electric supply must include a safety shut off such as a circuit breaker
or fused disconnect switch between your power supply and the equipment.
3-7.3 Where a plug is provided, it must not be removed or changed. A properly sized
circuit and receptacle must be installed.
3-7.4 The oven must be adequately grounded. W here a plug is provided, do not remove
the ground prong. Grounding wire must be sized in accordance with local codes.
Where more strict codes do not exist, refer to the National Electrical Code -
NFPA 70. Ovens without a cord and plug have a grounding lug near the power
input terminals.
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