Modulex EXT Commercial Series Boilers User Manual
CHAPTER 4: Installation Instructions
OMM-0095_0H
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
71
of
144
GF-139
Phone: 800-526-0288
09/15/2017
4.35 HIGH ALTITUDE ADJUSTMENT
It is necessary to adjust the fan speed at altitudes at or above 5,000 feet. Modify the parameter
FAN MAX from the E8 Control Panel. Note that it is modifiable only with an access code. See
Table 4-7 on the next page for a list of the FA (Factory) parameters.
Figure 4-31: Adjusting Fan Speed to Set Input Range for High Altitude
NOT
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ee t
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al
ue of
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a
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ter
FH
(F
A
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A
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T
abl
e 4
-7
,
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O
D
U
LE
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E
X
T
P
res
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re and C
O
2
Lev
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C
al
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.
WARNING!
This conversion to high altitude
operation shall be made by a
qualified service agency in
accordance with the manufacturer’s
instructions and all applicable codes
and requirements of the authority
having jurisdiction. The qualified
service agency is responsible for
the proper installation of this
conversion. The installation is not
proper and complete until the
operation of the converted
appliance is checked as specified in
the manufacturer’s instructions
supplied with the unit.