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Asphyxiation hazard. Fire hazard. Explosion hazard.
This boiler must be installed, serviced, or repaired by a qualified installer,
service agency, or gas supplier. Improper installation, adjustment,
alteration, service or maintenance can cause severe personal injury, death,
or substantial property damage. Read and understand these instructions
and entire boiler manual before attempting to service boiler.
Up-to-date boiler manual is posted on manufacturer's website.
Alta
Residential
Condensing
Gas Boilers
Annual Servicing
Guidelines &
Information*
January, 2024
*For complete information, including all cautions & warnings
for the installation, operations, maintenance, and servicing of
Alta boilers and combis, refer to their respective Installation,
Operation & Servicing manuals.
WARNING
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Table of Contents
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Related Manuals for U.S. Boiler Company Alta
Summary of Contents for U.S. Boiler Company Alta
- Page 1 Information* January, 2024 *For complete information, including all cautions & warnings for the installation, operations, maintenance, and servicing of Alta boilers and combis, refer to their respective Installation, Operation & Servicing manuals. WARNING Asphyxiation hazard. Fire hazard. Explosion hazard. This boiler must be installed, serviced, or repaired by a qualified installer, service agency, or gas supplier.
- Page 2 Annual Inspection and Servicing Guidelines for Alta Boilers NOTE: In addition to the continuous and monthly inspections instructions provided with Alta boiler “Installation, Operating and Service Instructions” (IO&S) manuals, the following steps should be performed by a service technician annually. For complete information, including all cautions and warnings for the installation, operation, maintenance, and servicing of Alta boilers, refer to the IO&S manual that was included with the boiler.
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Page 3: Wiring Connectors
NOTE: threaded rods and dimples (shown in diagram) hold coils together and will not provide clearance for the tool. Work around these areas. F.10 Use spray bottle with water to rinse coils. Be careful not to wet insulation disc. Alta Service Guide • January, 2024... -
Page 4: Condensate Trap
Open the vent port valve and allow water to run into vent until trap is full. (NOTE: Do not do this with systems using glycol; use a funnel and water bottle or similar method for these applications) Alta Service Guide • January, 2024... -
Page 5: Checking For Proper Operation
J.14 If using the USB-Connect tool, calibration can be accomplished easily using the “fuel selection” tile in the “adjustment” menu. For additional instructions, see the USB-Connect user manual or contact U.S. Boiler Techincal Support at (717) 397-4701. Alta Service Guide • January, 2024... -
Page 6: Perform Combustion Test
300 ppm air free. Never leave boiler in operation if CO exceeds these levels. Ideal combustion values are 6% O2, and under 100 ppm CO. K.6 In event of high CO, see Section 18 of Alta Installation and Operations Manual (Troubleshooting). K.7 Replace cap on vent adapter.
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