Weil-McLain Ultra Manual page 100

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gas fired water boiler
Replacement parts
Figure 108
Heat exchanger and piping — Ultra-310
Item Description
1 Heat exchanger replacement kit - Heat exchanger, cover plate, burner,
electrode, water sensors, compression fittings, condensate fitting, gaskets,
and hardware
2 Cover plate replacement kit - Cover plate, cover plate gasket, burner gasket,
and hardware
3 Cover plate insulation
4 Cover plate gasket
5 Cover plate studs, M6, 1 pitch
6 Cover plate nuts, M6, 1 pitch
8 Supply water pipe assembly - Pipe, temperature well, check valve, cap
(assembled) & compression fitting
10 1/2" NPT well for temperature gauge
11 Pressure/temperature gauge check valve
13 Return water pipe assembly - Pipe, drain valve, cap (assembled) &
compression fitting
14 Supply/Return water piping square cut EPDM gasket (Ultra-310 only)
15 Fitting, double nipple for Ultra-310 supply/return
16 Boiler drain valve, 3/4" NPT
17 Blower assembly kit - Blower, gasket, and hardware
18 Gas pipe
19 Flexible gas line section and shut-off valve
20 Gas pipe lower clamp and hardware
21 Gas valve/venturi kit - Gas valve, venturi, adapter block, O-ring and hardware
(assembled) (For LP boilers, make sure to reinstall the existing propane orifice)
22 Gasket cork, for in between gas valve venturi & burner inlet
23 Air silencer kit - Air silencer and gasket
24 Condensate trap kit - Condensate trap, hose clamps, pvc fittings, and gasket
25 Ignition electrode kit - Ignition electrode, suppressor, gasket, and hardware
26 Ignition cable kit (not shown) - Ignition cable, suppressor, and wire tie
27 Inspection glass kit - Bracket, glass, gasket and hardware
28 Burner replacement kit - Burner, gaskets and hardware
29 Return/supply sensor kit - (1) sensor
100
— Boiler Manual
(continued)
Go to www weil-mclain com to locate Weil-McLain distributors
Boiler Part
Models Number
Ultra-310 383-500-623
Ultra-310 383-500-395
Ultra-310 383-500-250
Ultra-310 383-500-255
All 560-340-598
All 561-928-449
Ultra-310 383-500-380
All 383-500-270
All 383-500-275
Ultra-310 383-500-385
Ultra-310 562-248-743
Ultra-310 561-326-828
All 511-246-392
Ultra-310 383-500-360
Ultra-310 560-907-679
Ultra-310 560-900-016
Ultra-310 383-500-625
Ultra-310 383-500-390
All 590-317-310
Ultra-310 383-500-355
Ultra-310 383-500-626
All 383-500-045
All 383-500-619
All 383-500-020
Ultra-310 383-500-407
All 383-500-602
Part number 550-100-066/0608