7
Strainers and filters will NOT remove minerals from the water.
Refer to REMOVAL OF LIME SCALE DEPOSITS, page 28.
DRAIN CONNECTION
CAUTION
:
In order to avoid any back pressure in the oven, do not connect solidly to any drain
connection
.
An adaptor collar is recommended for the machine drain connection, located underneath the oven at
the rear. The drain line should be plumbed to an open gap-type drain and include a trap. Drain piping
must have suitable pitch, have appropriate support along its length, and have no connection to other
piping. The material used in the drain line should be heat resistant to at least 212
°
F. The open drain
should be located between 3 and 5 feet away from the perimeter of the oven to reduce potential damage
from moisture-corrosion.
ELECTRICAL CONNECTION
Cord Connected Ovens
WARNING
: THE SUPPLY CORD ON THIS OVEN IS PROVIDED WITH A GROUNDING PLUG. THE
OUTLET TO WHICH THIS PLUG IS CONNECTED MUST BE PROPERLY GROUNDED. IF THE
RECEPTACLE IS NOT THE PROPER GROUNDING TYPE, CONTACT AN ELECTRICIAN.
The wiring diagram is located on the inside surface of the right side panel as you face the oven.
START UP PROCEDURE
The Gas Combi Ovens are equipped with a gas burner for convection heating and a gas steam
generator for atmospheric steaming; two independent flues exhaust the burnt gases. Become familiar
with the entire manual before continuing with this Startup Procedure. Remove the tray rack, grease
filter, and fan baffle from the oven cavity. Turn gas and water on.
Press the ON button.
• Select Combi Mode and adjust the steam time to 50% by pressing
four times (four
indicator lights are lit).
• Leave oven temp setting at 302
°
F and the timer display blank, [-]h [--]min.
• Close the oven door and press the Start Button. The oven convection fan rotates counterclockwise.
The oven flue vent should be open.
• After a delay of 50 seconds while the oven adjusts for Combi Mode, the sparker on the left side of
the burner should ignite the Convection Burner. Observe blue flame. After an additional 70 seconds,
the steam generator flame should ignite. Observe blue flame through window below controls.
If the Convection Burner does not ignite, the NO Convection Burner indicator light,
, will be lit.
• Wait 30 seconds until the
light starts to flash and the buzzer sounds.
• Reset the Convection Burner by pressing the Reset Button above the
indicator light.
• This procedure may need to be repeated several times until all of the air in the pipeline is replaced
by gas. The longer the pipe, the longer it will take to remove the air from the pipe.
If the Steam Generator Burner does not ignite, the NO Steam Burner indicator light,
, will be lit.
• Wait 10 seconds until the
light starts to flash and the buzzer sounds.
• Reset the Steam Generator Burner by pressing the Reset Button above the
indicator light.
• This procedure may need to be repeated several times until all of the air in the pipeline is replaced
by gas.
If a make-up air system is part of the vent hood, make sure there is no down-draft pushing hot
combustion gases from the flues back into the oven.
Press Stop and observe that the pump drains the steam generator for about one minute. The door will
open. After the oven is cool, reinstall fan baffle, grease filter, and tray rack.