Specifications

Part number 550-100-090/0809
g a s -f i r e d w a t e r b o i l e r — Boiler Manual
118
Go to www.weil-mclain.com to locate Weil-McLain distributors
Heat exchanger and piping Figure 122
Ultra-155 & -230
Replacement parts (continued)
Item
Description
Boiler
models
Part
number
1 Heat exchanger replacement kit - Heat
exchanger, cover plate, burner, electrode,
water sensors, compression fittings,
condensate fitting, gaskets, and hardware
155
230
383-500-621
383-500-622
2 Cover plate replacement kit - Cover plate,
cover plate gasket, burner gasket, and
hardware
155/230 383-500-395
3 Cover plate insulation 155/230 383-500-250
4 Cover plate gasket 155/230 383-500-255
5 Cover plate studs, M6, 1 pitch All 560-340-598
6 Cover plate nuts, M6, 1 pitch All 561-928-449
7 Water compression fitting, 28 mm 80–230 383-500-260
8 Supply water pipe assembly - Pipe,
temperature well, check valve, cap
(assembled) & compression fitting
155/230 383-500-265
9 Supply water lower pipe clamp and hardware 155/230 383-500-615
10 1/2” NPT well for temperature gauge All 383-500-270
11 Pressure/temperature gauge check valve All 383-500-275
12 Return water bushing, 1 1/4” BSP x 1” BSP
(not use on Ultra-299)
155/230 383-500-280
13 Return water pipe assembly - Pipe, drain
valve, cap (assembled) & compression fitting
155/230 383-500-285
16 Boiler drain valve, 3/4” NPT All 511-246-392
17 Blower assembly kit - Blower, gasket, and
hardware
155
230
383-500-035
383-500-040
Item
Description
Boiler
models
Part
number
18 Gas pipe 155/230 560-907-683
19 Flexible gas line section and shut-off valve 155/230 383-500-624
20 Gas pipe lower clamp and hardware 155/230 383-500-617
21 Gas valve/venturi kit - Gas valve, venturi,
adapter block, O-ring and hardware
(assembled) ke sure to reinstall the existing
propane orifice)
155
230
383-500-025
383-500-030
22 Gasket cork, for in between gas valve venturi
& burner inlet
All 590-317-299
23 Air silencer kit - Air silencer and gasket 155/230 383-500-295
24 Condensate trap kit - Condensate trap, hose
clamps, pvc fittings, and gasket
155
230
383-501-031
383-500-060
25 Ignition electrode kit - Ignition electrode,
suppressor, gasket, and hardware
All 383-500-045
Ignition electrode gasket ONLY 511-330-253
Ignition electrode and gasket 511-330-253
26 Ignition cable kit (not shown) - Ignition cable,
suppressor, and wire tie
All 383-500-619
27 Inspection glass kit - Bracket, glass, gasket
and hardware
All 383-500-020
28 Burner replacement kit - Burner, gaskets and
hardware
155
230
383-500-085
383-500-090
29 Return/supply sensor kit - (1) sensor All 383-500-602