Specifications

Part number 550-100-090/0809
119
g a s -f i r e d w a t e r b o i l e r — Boiler Manual
MAINTENANCE & SPECIFICATIONS
Figure 123 Heat exchanger and piping
Ultra-299 & -399
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
299/399 383-500-623
2 Cover plate replacement kit - Cover plate, cover
plate gasket, burner gasket, and hardware
299/399 383-500-395
3 Cover plate insulation 299/399 383-500-250
4 Cover plate gasket 299/399 383-500-255
5 Cover plate studs, M6, 1 pitch All 560-340-598
6 Cover plate nuts, M6, 1 pitch All 561-928-449
8 Supply water pipe assembly - Pipe, temperature
well, check valve, cap (assembled) &
compression fitting
299/399 383-500-380
10 1/2” NPT well for temperature gauge All 383-500-270
11 Pressure/temperature gauge check valve All 383-500-275
13 Return water pipe assembly - Pipe, drain valve,
cap (assembled) & compression fitting
299/399 383-500-385
14 Supply/Return water piping square cut EPDM
gasket (Ultra-299 only)
299/399 562-248-743
15 Fitting, double nipple for supply/return 299/399 561-326-828
16 Boiler drain valve, 3/4” NPT All 511-246-392
17 Blower assembly kit - Blower, gasket, and
hardware
299
399
383-500-360
383-500-650
18 Gas pipe 299/399 560-907-679
19 Flexible gas line section and shut-off valve 299
399
560-900-016
383-500-653
Item
Description
Boiler
models
Part
number
20 Gas pipe lower clamp and hardware 299 383-500-625
21 Gas valve/venturi kit - Gas valve, venturi,
adapter block, O-ring and hardware
(assembled) (For 310LP boilers, make sure to
reinstall the existing propane orifice)
299 383-500-390
Gas valve kit - Gas valve, venturi, adapter
block, O-ring and hardware (assembled)
399 383-500-652
22 Gas valve outlet adapter/nipple kit 399 383-500-651
23 Gasket cork, for in between gas valve venturi &
burner inlet
All 590-317-310
24 Air silencer kit - Air silencer and gasket 299
399
383-500-355
383-500-654
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
299 383-500-407
29 Return/supply sensor kit - (1) sensor All 383-500-602
30 Condensate trap kit - Condensate trap, hose
clamps, pvc fittings, and gasket
299 383-500-626