Middleby Cooking Systems Group PS520E Benutzerhandbuch

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SECTION 2
INSTALLATION
These “C” Channel brackets are installed in the vertical
plane using existing screws to support these ‘C”
Channels using the upper and lower Key Hole openings
in the ‘C’ Channels. The “C” Channels are identical and
once installed will allow ample amounts of air through
the cooling fan mounted on the rear side of the oven by
keeping the oven away from the rear wall.
III. ELECTRICAL CONNECTION INFORMATION
FOR PS520-SERIES OVENS.
Check the oven data plate (Figure 2-10) before making
any electric supply connections. Electric supply
connections must agree with data on the oven data plate.
NOTE: The electric supply installation must satisfy the
requirements of the appropriate statutory authority, such
as the National Electrical Code (NEC), ANSI/NFPA70,
(U.S.A); the Canadian Electrical Code, CSA C22:2; the
Australian Code AG601; or other applicable regulations.
WARNING
Authorized supplier personnel normally
accomplish the connection for the ventilation
system, electric supply, as arranged by the
customer. Following these connections, the
factory-authorized installer can perform the
initial start-up of the oven.
Figure 2-10. Typical Electric Oven Data Plate
Figure 2-11. Junction Connection Box
A fused disconnect switch or a main circuit breaker
(customer supplied) MUST be installed in the electric
supply line for each oven; it is recommended that this
switch/circuit breaker have  lockout/tagout capability. The
electric supply connection must meet all national and
local electrical code requirements. Copper is the
recommended material for the electrical supply
conductors.
IV. ELECTRIC SUPPLY FOR ELECTRICALLY
HEATED OVENS
Power requirements for electrically heated ovens are
usually 208-240VAC, 1-phase, 3 wire (2 ‘hot’, 1 ground),
although ovens built for export can have power
requirements of 380VAC and 480VAC. (These ovens
have a 4-wire or 5-wire system.) A 1.5” (38mm) diameter
cutout/hole in the back of the machinery compartment
provides access for the electrical supply connections on
380V and 480V units. 208V and 240V units have a cord
and plug. Using flexible cable(s) for the electrical power
supply conductors requires a 2” (51mm) strain-relief fitting
(not furnished) to enable safe access to the terminal block
from which oven power is distributed.
The supply conductors must be of the size and material
(copper) recommended to provide the current require;
(refer to the data plate for the ampere specifications).
Typical specifications for each PS520-Series Oven are
208-240V, 1-phase, 3 wire, 8.3kW; this oven requires
50 ampere service. A PS520-Series Double Oven (Figure
1-2) installation would require two 50 ampere service
connections, one for each oven; the 8.3kW power
consumption also doubles for such an installation to
16.6kW.
The 208V, 230V or 240V AC electrically heated oven
uses two legs of the supplied power to provide 208V,
230V or 240V AC power for the oven control circuitry
ELECTRICAL
INLET