Aerco MODULEX EXT 321 User Manual

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
OMM-0087_0F AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 75 of 146
GF-143 Phone: 800-526-0288 07/13/15
3.35 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 3-7 on the next page for a list of the FA (Factory) parameters.
Figure 3-40: Adjusting Fan Speed to Set Input Range for High Altitude
NOTE
See the value of parameter FH
(FAN MAX) in Table 3-7, and
Modulex EXT Pressure and CO
2
Level Calibration in Table 3-6.
WARNING!
This conversion to high altitude
operation shall be made by a
qualifie
d 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.

Aerco MODULEX EXT 321 Specifications

General

Brand	Aerco
Model	MODULEX EXT 321
Category	Boiler
Language	English