Alpine Sage2.1 Control Overview

Burnham Sage2.1 Boiler Control System (SBC2.1) – Overview (con’t)
U.S. Boiler Company – August, 2010 Page 7 of 8
• Expanded Factory Settings Included with Sage2.1 Control Systems:
o The Manual Rate Firing Mode includes a timeout feature that will return the boiler to
normal modulation of the firing rate after ten (10) minutes. This ensures the boiler will
modulate properly in the event that the manual firing rate mode is not disabled to the
“off” status after testing.
o Sage2.1 Boiler Control Systems include twenty-nine (29) additional factory diagnostic
screens in LCD Display - gives additional troubleshooting codes and enhanced
information over the original Sage2 control systems.
o Both EnviraCom and conventional thermostats are automatically detected by Sage2.1
control systems.
o With Sage2.1 control systems, lockout history is cleared during initial software loading.
Boilers are not sent to the field with “Lockout 22 Safety Data Verification Required”
messages in the “Lockout History” memory.
o High Altitude Capabilities: Alpine High Altitude Models 150, 210, & 285 are certified for
natural gas use up to 10,000 ft.
• Installation & Operation (I&O) Manuals for Sage2.1 Equipped Boilers
Alpine boiler Installation & Operation (I&O) manuals for Sage2.1 equipped boilers include
extensive information and clarifications on Sage2.1 boiler control system capabilities.
In particular, the I&O manual incorporates a simplified piping and pump selection section.
A standardized piping diagram recommends that all indirect water heaters be piped off the
primary loop (shown below and in I&O manual) which is a more reliable method of piping
the indirect water heaters rather than being piped off the boiler loop.
Indirect Water Heaters
Piped off the Primary Loop