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INSTALLATION INSTRUCTIONS
Vulcan electric convection ovens are U.L. listed under file
number E75870 and are manufactured for use on electri¬
cal service of the characteristics specified on the rating
plate. For proper installation procedures in the United
States of America, refer to: National Electrical code (ANSI/
N.F.P.A. No. 70 (latest edition). Information on the con¬
struction and installation of ventilating hoods may be ob¬
tained from the "Standard For The Vapors From Commer¬
cial Cooking Equipment", N.F.P.A. No. 96 (latest edition)
available from The National Fire Protection Association
"Attention
Publication
Services",
Batterymarch
Park,
Quincy, MA 02269.
NOTE: This equipment is design certified by a nationally
recognized testing laboratory to the appropriate national
standards as indicated on the equipment rating plate. Any
modification made without written permission of Vulcan-
Hart Corporation voids the certification and warranty of
this unit.
Units designed for 208, 240 or 480 volts will operate satis¬
factorily within the voltage range of 197 to 218, 228 to
252 and 456 to 500 volt A.C. respectively. Units designed
for 220/230 or 240/415 volt A.C. require voltage supplies
with ground and neutral (3-phase, 4-wire, or 1-phase, 3-
wire).
Units wired for three (3) phase service may be changed
to single phase or single phase units may be changed to
three (3) phase as shown on the wiring diagram and con¬
nection decal. (Except for 3-phase motor construction.)
1. Remove crating with care. Remove all wood blocking,
packing, material and accessories.
2. Unit has been factory equipped and electrically con¬
nected for use with the specific electric supply indicated
on rating plate. Check electric supply available. If the
two voltages don't agree, contact your dealer or Vulcan-
Hart immediately without proceeding to the next step.
3. Install unit in final position if this was not done while
making connection.
4. Using a carpenter's level placed on oven rack, adjust
the feet on the bottom of each leg, so that oven is level
from front to back and side to side. (NOTE: Level oven
when in permanent position only.)
GENERAL THEORY OF OPERATION
Figure 8.0 Air Flow Pattern: Shows the air flow pattern
inside the Vulcan-Hart Half Size Convection Oven. The
blower pulls the air from inside the oven cavity and forces
it toward the front and back of the cavity. The forced air
is then deflected through the fan cover, towards the left
side of the oven in both the front and back. The air carries
the heat from the heating elements located behind the fan
cover and distributes it throughout the oven cavity. In gen¬
eral, the blower operates continuously, while the thermos¬
tatically controlled heating elements (3 elements) are
energized only when there is a demand for heat and de¬
energize when the desired temperature is reached.
A plunger action door switch, mechanically linked with the
door, shuts off both the heat and the blower when the
door is opened and will automatically reset when the door
is closed.
In the parts description and replacement section in the
installation, service and parts manual, the detailed function
of each component is explained.
116020-3
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