GF-135
Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A
Installation, Operation & Maintenance Manual Controller Operation
Page
123
of
188
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0089_0A
MC1 06/19/14
Ph.: 800-526-0288
18.3.3 Absolute Max CH Setpoint (Default: 188°F [87°C])
Figure 18-9: ABSOLUTE MAX CH SETPOINT Menu
Absolute Max CH Setpoint limits the setpoint during a central heating call. This setting can be
used to prevent a user from adjusting the central heating setpoint or outdoor reset curve above
a safe operating temperature in the EZ Setup Menu. A warning screen will be displayed in EZ
Setup if the user attempts to raise the setpoint above the Absolute Max CH Setpoint. The
Absolute Max CH Setpoint will be displayed on the outdoor reset curve in EZ Setup if the user
selects an outdoor reset curve which goes above the Absolute Max CH Setpoint. Press the
LEFT or RIGHT buttons to adjust the Absolute Max CH Setpoint then press the OK button to
store the setting.
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18.3.4 CH1 Maximum Setpoint (Default: 180°F [82°C])
Figure 18-10: CH1 MAXIMUM SETPOINT Menu
CH1 Maximum Setpoint is the maximum setpoint for a CH1 heating call when an Outdoor
Reset option is chosen in CH Demand. CH1 Maximum Setpoint is the fixed setpoint for a CH1
heating call when a Setpoint option is chosen in CH Demand. Press the LEFT or RIGHT
buttons to adjust the CH1 Maximum Setpoint then press the OK button to store the setting.
