Installation, Operating and Service Instructions for
ALTA
Model: ALTAC-136
Manual Contents
1.
2.
3.
4.
How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
5.
6.
7.
8.
12. Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
16. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
19. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .69
Appendix
A. Combination Refrigeration/Heating System . .92
B. Water Quality and Boiler Additives . . . . . . . . .93
C. Special Requirements In Massachusetts . . . .94
D. Code Required Text . . . . . . . . . . . . . . . . . . . . . .96
TO THE INSTALLER:
Affix these instructions adjacent to boiler.
Provide model number and serial number when
seeking information and support.
TO THE HOMEOWNER:
Retain these instructions for future reference.
Contact heating installer or technician for all issues
and support.
This boiler must only be installed, serviced, or repaired by a qualified heating installer or service technician.
Improper installation, adjustment, alteration, service or maintenance can cause severe personal injury, death,
or substantial property damage. For assistance or additional information, consult a qualified installer, service
agency, or the gas supplier. Read these instruction carefully before installing.
110327-02 - 7/20
• Combi Boiler/Water Heater
• Condensing
• Direct Vent
• Gas Fired
Page
!
WARNING
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Questions and answers
i have alta 136 combi ho4 code comes up with 52 degree incoming temp why is the code coming up unit is been hooked up for 2 weeks