88
110328-02 - 6/22
ALTA
Installation, Operating & Service Instructions
20
Service Parts
Key No.
Description
Part Number
120
150
180
1
Heat Exchanger
Contact U.S. Boiler Company;
Provide boiler serial number
2A
Fixing Clamp Bracket
2B
Holding Clamp
2C
Pop Rivet 5/32 x 3/16 in. (.126-.187 Grip)
2D
10-32 x 1/2 in. Thread Cutting Screw
3A
Flue Outlet Gasket
105882-01
3B
Flue Adapter 3 in. to 2 in.
4
Flue Temperature Sensor
105883-01
5
Rear Target Wall Insulation
105651-01
6
Burner Door Gasket
110880-01
6, 7
Burner Door Assembly (includes
burner, ignitor/flame sensor, gasket and
hardware)
110575-01
111560-01
8A, 8B,
8C
Ignitor/Flame Sensor (includes sensor,
gasket and hardware)
111423-01
8B
Ignitor/Flame Sensor Gasket
106527-01
9
M6 Serrated Flange Hex Nut
Obtain locally
1
2A
2B
2C
2D
3A
3B
4
5
6
7
8B
8C
8A
9
All service parts may be obtained through your local U.S. Boiler Company Wholesale distributor. Should you
require assistance in locating a U.S. Boiler Company Distributor in your area, or have questions regarding the
availability of U.S. Boiler Company products or service parts, please contact us at 1-888-432-8887 or Fax (717) 481-
8408 or at
