SECTION 2
INSTALLATION
UTILITY
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
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,
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.
CAUTION
UNIT MUST HAVE AIR VENT PLATES
INSTALLED OR WARRANTY WILL BE VOID.
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
7