Middleby Marshall Oven Service Manual and Error Codes for PS Models

SECTION 3 - SERVICING COMPONENTS

Appendix - Instructions for All Gas Conversion Kits

for Ovens with Wayne Burner, Propane to Natural Gas, 8/00

Middleby Cooking Systems Group • 1400 Toastmaster Drive • Elgin, IL 60120 • USA • (847) 741-3300 • FAX (847) 741-4406

Instructions for Service Kits 42810-0120, 42810-0125, 42810-0126, 42810-0127, 43061, 44664

Gas Conversion Kit for Middleby Marshall Ovens

Propane to Natural Gas Operation

KIT COMPONENTS:

Qty.	PS200	PS220/224	PS310/360	PS360WB	PS360WB70/EWB	PS555	PS570S	Description
1	42810-0125	42810-0126	42810-0120	42810-0127	44664	43061	42810-0127	KIT, GAS CONVERSION, PROPANE
								TO NATURAL
1	22176-0010 22176-0016 22176-0004 22176-0014 22176-0014					43059	22176-0014	ORIFICE, MAIN
	0.204”/5.18mm	0.182”/4.62mm	0.219”/5.56mm	0.250”/6.35mm	0.250”/6.35mm	0.228”/5.79mm	0.250”/6.35mm
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	22174-0011	- - - - - - - - - - -	- - - - - - - - -	- - - - >	ORIFICE, PILOT
				0.028”/0.71mm
1	22174-0006	22174-0006 22174-0006		22174-0006	22174-0006 *	NONE *	22174-0006 *	ORIFICE, BYPASS (HIGH-FLAME)
	0.060”/1.52mm/	0.060”/1.52mm/	0.060”/1.52mm/	0.060”/1.52mm/	0.060”/1.52mm/		0.060”/1.52mm/
	#53 drill	#53 drill	#53 drill	#53 drill	#53 drill		#53 drill
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	28092-0019	- - - - - - - - - - -	- - - - - - - - -	- - - - >	KIT, GAS CONTROL VALVE SPRING
								- NATURAL GAS
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	22500-0064	- - - - - - - - - - -	- - - - - - - - -	- - - - >	LABEL, NATURAL GAS (YELLOW/
								GREEN)
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	22500-0123	- - - - - - - - - - -	- - - - - - - - -	- - - - >	LABEL, GAS CONVERSION
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	22501-0007	- - - - - - - - - - -	- - - - - - - - -	- - - - >	TAG, GAS CONTROL CONVERSION
1	< - - - - -	- - - - - - - - - -	- - - - - - - - -	88210-0070	- - - - - - - - - - -	- - - - - - - - -	- - - - >	INSTRUCTIONS

*NOTE: The bypass orifice is not used if the oven is equipped with a modulating gas valve. These ovens include:

•PS360EWB (all)

•PS555 (all)

•PS570S (units produced 4/00 or later)

For additional information, refer to Part III of these instructions (Bypass Orifice Conversion).

IMPORTANT

THIS CONVERSION KIT IS INTENDED FORAGA-, CGA-, AND CSA-APPROVED MIDDLEBY MARSHALL GAS-FIRED OVENS OPERATING AT ALTITUDES UP TO 5000 FT. (1524m). FOR OVENS INSTALLED AT ALTITUDES ABOVE 5000 FT. (1524m), CONSULT THE FAC-

TORY BEFORE INSTALLING THIS KIT.

THIS KIT MAY NOT BE USED WITH CE-APPROVED MIDDLEBY MARSHALL OVENS. FOR THESE OVENS, FOLLOW THE GAS CONVERSION INSTRUCTIONS IN THE INSTAL- LATION SECTION OF THE OVEN’S OWNER’S OPERATING AND INSTALLATION MANUAL.

WARNING

THIS CONVERSION KIT IS TO BE INSTALLED BY A MIDDLEBY MARSHALLAUTHORIZED SERVICE AGENT IN ACCORDANCE WITH THE MANUFACTURER’S INSTRUCTIONS AND ALL CODES AND REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION. FAILURE TO FOLLOW INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR PROPERTY DAMAGE. THE AUTHORIZED SERVICE AGENT PERFORMING THIS WORK ASSUMES RESPONSIBILITY FOR THIS CONVERSION.

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ESPAÑOL - página 7

WARNING

BEFORE PERFORMING ANY SERVICE WORK, THE ELECTRICAL POWER SUPPLY AND THE GAS SUP- PLY MUST BE TURNED OFF.

1	P/N 88210-0070 • Rev. C • V1 • 8/00

125 PS224 PS310, PS220, PS555, PS200, PS360 specifications

The Middleby Marshall PS555 is a standout commercial pizza oven renowned for its performance, efficiency, and advanced technologies. Designed with the modern pizzeria in mind, the PS555 delivers exceptional cooking results while maximizing energy efficiency and throughput.

One of the key features of the PS555 is its innovative cooking technology, which incorporates both convection and radiant heat. This unique combination ensures that pizzas are cooked evenly and quickly, achieving a perfectly crispy crust and evenly melted cheese every time. The oven’s high-speed air impingement system accelerates cooking times, allowing pizzerias to serve more customers in less time without compromising quality.

The PS555 is designed with a spacious cooking chamber that can accommodate multiple pizzas simultaneously. With its ability to fit pizzas up to 18 inches in diameter, the oven is ideal for establishments with high demand. Additionally, the adjustable conveyor speed allows operators to customize the cooking time based on their specific menu items, enhancing versatility and productivity.

Energy efficiency is a hallmark of the Middleby Marshall PS555. The oven utilizes advanced insulation materials to minimize heat loss, ensuring that it operates at optimal temperatures while consuming less energy. This efficiency not only reduces operating costs but also contributes to a more sustainable kitchen environment.

User-friendly controls make it simple for operators to manage the cooking process. The PS555 features digital controls with programmable settings, enabling quick adjustments to temperature and cooking time. This ensures consistent quality across different shifts and helps maintain product standards while simplifying staff training.

Durability is another defining characteristic of the PS555. Built with high-quality materials, the oven is designed for heavy use in busy commercial kitchens. Its stainless steel construction ensures resistance to wear and tear, making it a worthwhile investment for any pizzeria.

In summary, the Middleby Marshall PS555 pizza oven is a high-performance piece of equipment that combines advanced cooking technologies, efficiency, and durability. Its ability to deliver consistently excellent results while streamlining operations makes it an essential asset for any pizza business aiming to enhance its productivity and customer satisfaction.

Middleby Marshall Oven Error Codes and Service Information

Models: PS224 PS310 PS220 PS555 PS200 PS360 PS570

Appendix - Instructions for All Gas Conversion Kits

for Ovens with Wayne Burner, Propane to Natural Gas, 8/00

TORY BEFORE INSTALLING THIS KIT.

ENGLISH- page 1

125

PS224 PS310, PS220, PS555, PS200, PS360 specifications