Replacement Parts List

GAS
Discontinued Service Parts 251
Ultra Boiler - Series 1 & 2
Heat Exchanger / Piping Parts
Ultra-155 / 230 / 310
Fig.
No.
Part No. Description Model
1
383-500-621
Heat Exchanger Replacement Kit (Includes: Heat Exchanger, Cover Plate,
Burner, Electrode, Water Sensors, Compression Fittings, Condensate Fitting,
Gaskets and Hardware)
155
383-500-622 230
383-500-623 310
N/S 383-500-395
Cover Plate Replacement Kit (Includes: Cover Plate, Cover Plate Gasket, Burner
Gasket and Hardware)
155, 230, 310
2 383-500-250 Cover Plate Insulation/Burner Gasket 155, 230, 310
N/S 383-500-255 Cover Plate Gasket 155, 230, 310
3 383-500-260 Water Compression Fitting, 28mm Supply/Return 155, 230
4
383-500-265
Water Supply Piping Assembly (Includes: Pipe, Temperature Well, Check Valve,
Cap (Assembled) and Compression Fitting)
155, 230
383-500-380
Water Supply Piping Assembly (Includes: Pipe, Temperature Well, Check Valve,
Cap (Assembled) and Compression Fitting)
310
5 383-500-270 ½" N.P.T. Well for Temperature Gauge All
6 383-500-275 Pressure/Temperature Gauge Check Valve All
N/S 383-500-280 Return Water Bushing, 1¼"BSP x 1"BSP (Not Used On Ultra 310) 155, 230
7
383-500-285
Return Water Pipe Assembly (Includes: Pipe, Drain Valve, Cap (Assembled) and
Compression Fitting)
155, 230
383-500-385
Return Water Pipe Assembly (Includes: Pipe, Drain Valve, Cap (Assembled) and
Compression Fitting)
310
8 511-246-392 Boiler Drain Valve ¾" N.P.T. All
9
383-500-035 Blower Assembly Kit (Includes: Blower, Gasket And Hardware) 155
383-500-040 Blower Assembly Kit (Includes: Blower, Gasket, Molex Adapter and Hardware) 230
383-500-360 Blower Assembly Kit (Includes: Blower, Gasket And Hardware) 310
10
383-500-290 Gas Pipe Assembly (Includes: Gas Pipe and Shut-off Valve) 155, 230
560-907-679 Gas Pipe 310
11 560-900-016 Flexible Gas Line Section and Shut-off Valve 310
N/S
563-910-031 Gas Valve Inlet Block (Includes Block, O-ring, and Screws) All
383-600-002 Gas Valve - O-Rings (Package Of Ten)
12
383-500-025
Gas Valve/Venture Kit (Includes: Gas Valve/Venturi Assembly, and Hardware)
(For LP Boilers, Make Sure To Reinstall The Existing Propane Orice)
155
383-500-030 230
383-500-390 310
13 Ground Joint Union, ½" N.P.T. 155, 230
14 Manual Gas Valve, ½" N.P.T. 155, 230
15
383-500-295
Air Silencer Kit (Includes: Air Silencer and Gasket)
155, 230
383-500-355 310
16
383-500-060
Condensate Trap Kit (Includes: Condensate Trap, Hose Claps, PVC Fittings and
Gasket)
155
383-500-060 230
383-500-365 310
17 383-500-045
Ignition Electrode Kit (Includes: Ignition Electrode, Suppressor, Gasket and
Hardware)
All