Despatch LEB Series - Manual (Page 21)

13
Pre-Startup Checklist
Know the system. Read this manual carefully. Make use of its instructions
and explanations. The know how of safe, continuous, satisfactory, trouble-
free operation depends primarily on the degree of your understanding of the
system and of your willingness to keep all parts in proper operating
condition.
Check line voltage. Voltage must correspond to nameplate requirements of
motors and controls. Refer to the section on power connections in the
INTRODUCTION of this manual.
Fresh air, exhaust, and electrical cabinet openings.
Do not be careless about restrictions in and around
the fresh air and exhaust openings. Under no
condition permit them to become so filled with dirt
that they appreciably reduce the air quantity. Refer
to the Set-up instructions in this manual.
Ventilation. There is an exhaust opening in the rear of the unit.
The exhaust vent may have to be closed to reach the maximum
temperature of 204°C, especially if operating on 20 8 volts. They may need
to be opened to operate properly at the lower range of the oven's design.
Helpful hints
•
For drying ovens, open vent to prevent buildup of moisture.
•
For sample heating, close the vent when no ventilation is required.
NOTE:
The exhaust vent may
have to be adjusted to
achieve maximum
performance at various
operating temperatures.