Middleby Marshall PS200 series - Manual (Page 92)

91
PS360WB70/EWB PS360WB70/EWB
PS200 PS220/224 PS310/314/360 PS360WB Midco burner Wayne burner PS555 PS570S/PS570G Description
42810-0125 42810-0126 42810-0120 42810-0127 36863 44664 43061 42810-0127 GAS CONVERSION KIT,
PROPANE TO NATURAL
22176-0010 22176-0016 22176-0004 22176-0014 31821 22176-0014 43059 22176-0014 MAIN ORIFICE, NATURAL
0.204”/5.18mm 0.182”/4.62mm 0.219”/5.56mm 0.250”/6.35mm 0.234”/5.94mm 0.250”/6.35mm 0.228”/5.79mm 0.250”/6.35mm GAS
22174-0011 22174-0011 22174-0011 22174-0011 31818 22174-0011 22174-0011 22174-0011 PILOT ORIFICE, NATU-
0.028”/0.71mm 0.028”/0.71mm 0.028”/0.71mm 0.028”/0.71mm 0.032”/0.81mm 0.028”/0.71mm 0.028”/0.71mm 0.028”/0.71mm RAL GAS
22174-0006* 22174-0006* 22174-0006 22174-0006 22174-0006* 22174-0006* NONE* 22174-0006* BYPASS ORIFICE, NATU-
0.060”/1.52mm/ 0.060”/1.52mm/ 0.060”/1.52mm/ 0.060”/1.52mm/ 0.060”/1.52mm/ 0.060”/1.52mm/ 0.060”/1.52mm/ RAL GAS
#53 drill #53 drill #53 drill #53 drill #53 drill #53 drill #53 drill
28092-0019 28092-0019 28092-0019 28092-0019 28092-0019 28092-0019 28092-0019 28092-0019 GAS VALVE SPRING KIT,
NATURAL GAS
42810-0122 42810-0123 42810-0119 42810-0124 36856 44665 43062 42810-0124 GAS CONVERSION KIT,
NATURAL TO PROPANE
22176-0007 22176-0017 22176-0003 22176-0015 31822 31980 43060 22176-0015 MAIN ORIFICE, PROPANE
0.1285”/3.26mm 0.113”/2.87mm 0.134”/3.40mm 0.152”/3.86mm 0.185”/4.70mm 0.165”/4.19mm 0.141”/3.58mm 0.152”/3.86mm
22174-0010 22174-0010 22174-0010 22174-0010 31819 22174-0010 22174-0010 22174-0010 PILOT ORIFICE, PROPANE
0.018”/0.45mm 0.018”/0.45mm 0.018”/0.45mm 0.018”/0.45mm 0.025”/0.64mm 0.018”/0.45mm 0.018”/0.45mm 0.018”/0.45mm
22174-0009* 22174-0009* 22174-0009 22174-0009 22174-0009* 22174-0009* NONE* 22174-0009* BYPASS ORIFICE, PRO-
0.038”/0.97mm/ 0.038”/0.97mm/ 0.038”/0.97mm/ 0.038”/0.97mm/ 0.038”/0.97mm/ 0.038”/0.97mm/ 0.038”/0.97mm/ PANE
#62 drill #62 drill #62 drill #62 drill #62 drill #62 drill #62 drill
28092-0018 28092-0018 28092-0018 28092-0018 28092-0019 28092-0018 28092-0018 28092-0018 GAS VALVE SPRING KIT,
(same as PROPANE
natural gas)
* NOTE
Bypass orifices are used ONLY on ovens equipped with an on-off gas regulation system (with a solenoid valve). These ovens include:
B. Part Number Reference - Gas Orifices and Gas Conversion Kits
Figure 60 - Wayne burner - exploded view
Pilot/ignitor
assembly
42810-0117
Pilot shield
27170-0204
Venturi
Wtih angled flame target:
27170-0223
With round flame target:
38127
Pilot orifice
See chart below
Main orifice
See chart below
Pitot tube assembly
(for use with 208/
240V motors)
42400-0640
Air shutter
42810-0087
Burner blower and motor assy
120V: 27170-0011
208/240V: 27170-0287
• PS200-series
(through 3/02)
• PS310
• PS314
Ovens equipped with a PID modulated gas system (with a modulating valve) do not use a bypass orifice. These ovens include:
• PS200-series
(4/02 or later)
SECTION 3 - SERVICING COMPONENTS
NOTE: Installations at higher altitudes have a lower ambient air pressure that disrupts the air-fuel mixture. To correct this
problem, smaller gas orifices are required. A general rule is a 4% reduction for each 1000 ft. (305m) above sea level. Refer
to the chart in the Appendices section (page 135) for a listing of orifice sizes showing this reduction.
• PS360
• PS360WB
• PS360WB70
• PS570S (through 8/00)
• PS360EWB
• PS555
• PS570S
(9/00 or later)
• PS570G