180 Air filter
compartment
500-136 P-1211
Replacement air
filters
180-126 P-381
190 High pressure
switch (behind
gas valve)
180-276 P-1250
200 Low pressure
switch
180-277 P-1249
210 Gas valve 500-147 P-1215B
220 Gas line 190-201 P-1216
230 Heat exchanger
lid gasket
255-125 P-1222
240 Refractory 255-123 P-1218
250 Burner 180-270 P-1224
260 Burner gasket 255-128 P-1223
270 Heat exchanger -
700
170-046 P-1230
Heat exchanger -
850
170-047 P-1229
280 Boiler drain with
cap
500-144 P-1220
290 Condensate trap 180-268 P-1221
300 Water pressure
sensor
240-167 P-1231
310 Manual air vent 180-258 P-1219
320 Heat exchanger
lid
170-049 P-1214
330 Sight glass kit 500-117 P-117
340 Ignitor 240-153 P-1213
Low water cutoff 240-143 P-9078