Warning – Middleby Marshall PS500 User Manual
Page 5
5
ENGLISH
SECTION 2 - INSTALLATION
WARNING
Keep the appliance area free and clear of combustibles.
WARNING
Do not obstruct the flow of combustion and ventilation air to and from your oven. There must be no
obstructions around or underneath the oven. Constructional changes to the area where the oven is
installed shall not affect the air supply to the oven.
NOTE
There must be adequate clearance between the oven and combustible construction. Clearance
must also be provided for servicing and for proper operation.
NOTE
An electrical wiring diagram for the oven is located inside the machinery compartment.
NOTE
All aspects of the oven installation, including placement, utility connections, and ventilation requirements,
must conform with any applicable local, national, or international codes. These codes supercede the require-
ments and guidelines provided in this manual.
Table 1-5: Gas orifice and pressure specifications (per oven cavity)
Supply (inlet) Pressure (mbar)
Main
Pilot
IE,IT,PT,
AT,CH,DK,
Orifice
Rated
Orifice
Orifice
ES,GB
D E
N L
BE,FR
FI,SE
(manifold)
Heat
Gas Type
dia.
dia.
II
2H3+
II
2ELL3B/P
II
2L3B/P
II
2E+3+
II
2H3B/P
pressure
Input
PS555G Natural, G20
5.79mm
0.635mm
20
20
--
20-25
20
9.0 mbar
44kw
Natural, G25
5.79mm
0.635mm
--
20
25
--
--
12.0 mbar
44kw
Natural, G20, G25
5.79mm
0.635mm
20
20
25
20-25
20
9.0 mbar
44kw
Liquid, G30
3.33mm
0.381mm
29-37
--
28-30
29-37
50
23.9 mbar
44kw
Liquid, G30, G31
3.33mm
0.381mm
--
50
30
--
50
23.9 mbar
44kw
PS570G Natural, G20
6.35mm
0.635mm
20
20
--
20-25
20
9.0 mbar
50kw
Natural, G25
6.35mm
0.635mm
--
20
25
--
--
12.0 mbar
50kw
Natural, G20, G25
6.35mm
0.635mm
20
20
25
20-25
20
9.0 mbar
50kw
Liquid, G30
3.53mm
0.381mm
29-37
--
28-30
29-37
50
23.9 mbar
50kw
Liquid, G30, G31
3.53mm
0.381mm
--
50
30
--
50
23.9 mbar
50kw
Table 1-4: Electrical specifications for PS555G and PS570G gas ovens (per oven cavity)
Main Blower
Control Circuit
Phase
Freq
Electrical system
Current draw (avg.) *
Poles
Wires
Voltage
Voltage
kW rating
230V
120V conveyor speed controller
1 Ph
50Hz
2.3kW
10A *
2 Pole
3 Wire
(w/transformer);
(2 hot, 1 gnd)
all other control circuits 230V
* CAUTION: The current draw shown in the chart above is an average value for normal operation. The initial amperage draw
on oven startup may exceed the listed value.
WARNING
The oven must be installed on an even (level) non-flammable flooring and any adjacent walls must be non-
flammable. Recommended minimum clearances are specified in the Description section of this Manual.
WARNING -
After any conversions, readjustments, or service work on the oven:
Perform a gas leak test.
Test for correct air supply, particularly to the burner blower.
Test for proper combustion and gas supply.
Check that the ventilation system is in operation.