Middleby Marshall X55G Series, Owner'S Operating & Installation Manual

Page: 24 / 46

SECTION 2
INSTALLATION
24
4. Press again to leave the SYSTEM
CONFIGURATION menu.
SWITCHING PHOTO SENSOR
CAUTION
Disconnect power by employing proper OSHA
Lock-Out Tag-Out procedure before switching
Photo Eye.
1. Open the access door and disconnect the yellow
electrical connector fitting to the photo eye
assembly.
2. Remove the two screws securing the photo eye
assembly to the control box.
3. Remove the four nuts securing the photo eye to
the housing.
4. Rotate the photo eye 180 degrees and affix the
photo eye with the four nuts.
5. Replace the photo eye assembly in the opposite
control box by securing the photo eye assembly in
position.
6. Reconnect the yellow electrical connector fitting to
the photo eye assembly.
7. Replace the photo eye cover on the opposite
control box, where the photo eye assembly was
removed.
8. Apply power to the unit.
9. Adjust the photo eye height by loosening the two
screws securing the photo eye assembly and
sliding the photo eye assembly either up or down,
such that the beam is approximately 1/4 inch
above the belt.
NOTE: This is MUCH easier in reduced light.
IV. ELECTRICAL CONNECTION
Each oven comes with a six foot power cord and a
NEMA L6-20P twist lock plug and L6-20R twist lock
receptacle. Refer to the wiring diagram inside the
machinery compartment of the oven to determine the
correct connections for the electrical supply lines.
Connect the supply as indicated on the wiring diagram.
Power connections are located under access cover.
NOTICE
The terms of the oven’s warranty require all start-ups,
conversions and service work to be performed by a
Middleby Marshall Authorized Service Agent.
V. GAS CONNECTION
CAUTION
DURING PRESSURE TESTING NOTE THE
FOLLOWING:
1. The oven and its individual shutoff valve must
be disconnected from the gas supply piping
system during any pressure testing of that
system at test pressure in excess of 1/2 psi
(3.45kPa).
2. The oven must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressure equal to or less than 1/2 psi (3.45kPa).
3. If incoming pressure is over 14" W.C.
(35mbar), a separate regulator MUST be
installed in the line BEFORE the individual
shutoff valve for the oven.
NOTICE
To prevent damage to the control valve regulator
during initial turn-on of gas, it is very important to open
the manual shutoff valve very slowly.
After the initial gas turn-on, the manual shutoff valve
must remain open except during pressure testing as
outlined in the above steps or when necessary during
service maintenance.
Flexible Gas Hose Installation
Refer to the instructions in the gas hose package
(included in the Installation Kit) before connecting the
gas line. One gas line connection method is shown in
Figure 25; however, compliance with the applicable
standards and regulations is mandatory.
Inlet, regulated, and pilot gas pressure readings can
be taken using a digital tube manometer at the tap