Cascading multiple boilers, continued, Combustion set up, High fire – LAARS NeoTherm NTV (Sizes 080–850 MBTU/h) - Start Up Guide User Manual
Page 13: Low fire, Co2 adjustment range
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N
eo
T
herm
Boilers and Water heaters
Cascading multiple boilers, continued
Combustion Set Up
High Fire
Navigation
•
Home screen
•
Press “I” Info/Install button
•
Scroll to highlight “Test”, press OK
•
“Forced Rate” will be highlighted, press OK
•
If the screen prompts you to Log in, press OK and Log in
Note: The boiler must be running to start High or Low fire test
•
“Set High Fire” will be highlighted, press OK
•
Scroll down to “Start Test” press OK
You will now have five minutes to complete the High fire CO2 adjustments
Low Fire
Navigation
•
From the “Forced Rate” screen, highlight the option for “Set Low Fire”, press OK
•
Scroll down to “Start Test”, press OK. Complete Low Fire CO2 adjustments.
CO2 Adjustment Range
Gas Type
High Fire CO2
Low Fire CO2
Natural
9.0 to 9.8 %
0.5% lower than High Fire
Propane
10.0 to 10.8 % 0.5% lower than High Fire
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