165 Fuel orifice NG
251-112 P-1235
Fuel orifice LP
251-113 P-1236
Fuel orifice NG
251-110 P-1237
Fuel orifice LP
251-111 P-1238
170 Gas valve 180-288 P-1241
180 Air filter
compartment
500-172
Replacement air
filters
180-126 P-381
190 High pressure
switch
180-276 P-1250
200 Low pressure
switch
180-277 P-1249
210 Gas line 190-208 P-1242
200 Fan gasket 250-322 P-311
210 Heat exchanger
lid
170-055 P-1247
220 Heat exchanger
gasket
255-136 P-1252
230 Refractory 255-135 P-1253
240 Burner gasket 255-128 P-1223
250 Burner 180-284 P-1243
260 Heat exchanger -
400
170-054 P-1245
Heat exchanger -
500
170-045 P-1246
270 Boiler drain with
cap
500-144 P-1220
280 Condensate trap 180-268 P-1221
290 Water pressure
sensor
240-167 P-1231