7
SECTION 2
INSTALLATION
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS520 SERIES OVENS
WARNING
DO NOT USE CONDUIT OR GAS LINE FOR
GROUNDING CONNECTION
CAUTION
IT IS RECOMMENDED THAT THE OVEN BE
PLACED UNDER A VENTILATION HOOD
FOR ADEQUATE AIR SUPPLY AND
VENTILATION
ELECTRIC SUPPLY TO BE
PROVIDED BY CUSTOMER
CIRCUIT BREAKER
Separate circuit breaker with lockout/tagout electrical
shutoff for each oven. Wire each oven separately.
50 amp circuit breaker for 208-240V, or 30 Amp circuit
breaker for 380-480V.
ELECTRICAL SPECIFICATIONS
ALL MODELS:
•208V main blower motors and elements, 1 Ph, 39.9
Amp draw, 50/60 Hz, 208V control circuit, 2 pole,
3 wire system per oven (2 hot, 1 grd).
•230V main blower motors and elements, 1 Ph, 33.0
Amp draw, 50/60 Hz, 230V control circuit, 2 pole,
3 wire system per oven (2 hot, 1 grd).
•240V main blower motors and elements, 1 Ph, 34.6
Amp draw, 50/60 Hz, 208-240V control circuit, 2 pole,
3 wire system per oven (2 hot, 1 grd).
Non-CE:
•380V elements, 1 Ph, 21.8 Amp draw, 50/60 Hz, 208-
240V control circuit and main blower motor, 3 pole,
4 wire system per oven (2 hot, 1 neut, 1 grd).
Domestic and Non-CE:
•480V elements, 1 Ph, 17.3 Amp draw, 50/60 Hz, 208-
240V control circuit and main blower motor, 3 pole,
4 wire system per oven (2 hot, 1 neut, 1 grd)
CE Only:
•380V elements, 1 Ph, 21.8 Amp draw, 50/60 Hz, 208-
240V control circuit and main blower motor, 2 pole,
3 wire system per oven (2 hot, 1 grd).
•400V elements, 1 Ph, 23.0 Amp draw, 50/60 Hz, 208-
240V control circuit and main blower motor, 2 pole,
3 wire system per oven (2 hot, 1 grd)
•380V elements, 3 Ph, 21.8/21.8/1.2 Amp draw, 50/60
Hz, 5 pole, 4 wire system per oven (3 hot, 1 neut, 1
grd).
•400V elements, 3 Ph, 23.0/23.0/1.2 Amp draw, 50/60
Hz, 5 pole, 4 wire system per oven (3 hot, 1 neut, 1
grd)
Do NOT use conduit for ground.
To Oven
To Oven
Suggested dimensions are shown; utility code
requirements supercede any factors shown.
Figure 2-9. Typical PS520-Series Oven(s)
Installation
ELECTRICAL RATING
7.6 - 9.2 kW/hr
SUPPLY WIRING
Supply wire size must be in accordance with the National
Electrical Code (current edition) and must be in compliance
with local codes.
SUGGESTED
If space permits, service should be located near the control
console end of the oven(s) to allow convenient access to
safety switches.
II. VENTILATION
A mechanically driven ventilation system is required for
the PS520 Series Middleby Marshall conveyorized electric
ovens.
Local codes and conditions vary greatly from one area to
another and must be complied with. Following are the
suggested requirements for good ventilation. Please
remember these are recommendations or guidelines, you
may have a special condition or problem that will require
the services of a ventilation engineer or specialist. Proper
ventilation is the oven owner’s responsibility. Improper
ventilation can inhibit oven performance.
Please Note: There are now two “stand off” “C”
channels that must be installed in the field (See Section
1: Figure 1-4, page 3 for reference)
CAUTION
UNIT MUST HAVE AIR VENT PLATES
INSTALLED OR WARRANTY WILL BE VOID.
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