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Modulex Light Commercial Series
CHAPTER 4: Installation Instructions
OMM-0158_A
• 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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4.37 High Altitude Adjustment
It is necessary to adjust the fan speed at altitudes at or above 5,000 feet. Modify parameter 526
(FU: Fan maximum speed) of the BMM (Burner Management Module) in the Devices Menu.
NOTE
: This is modifiable only with an access code.
Access the BMM Menu by selecting the
bmm
buttons.
See Section 6.7 for a list of BMM
Parameters.
Change value of parameter 526 - refer to appropriate model and fuel type on table 4.6.
Scroll to parameters 526 and change the values - refer to appropriate model and fuel type on
table 4.6.
Repeat the above procedure for the rest of the burners (bmm 2 to bmm7, depending on model).