GF-135
Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A
Installation, Operation & Maintenance Manual Controller Operation
Page
125
of
188
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0089_0A
MC1 06/19/14
Ph.: 800-526-0288
18.3.8 CH2 Circuit (Default: Enabled)
Figure 18-14: CH1 CIRCUIT Menu
CH2 Circuit allows the CH2 Maximum and Minimum Setpoints to be enabled and disabled. When
disabled, the CH2 heating call will operate using the CH1 Maximum and Minimum Setpoints.
Press the UP or DOWN buttons to select Enabled or Disabled, then press the OK button to store
the setting.
•
Enabled:
A CH2 heating call will use CH2 Maximum and Minimum Setpoints.
•
Disabled:
A CH2 heating call will use CH1 Maximum and Minimum Setpoints.
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18.3.9 CH2 Maximum Setpoint (Default: 140°F [60°C])
(For menu image, see section 18.3.4, Figure 18-10, CH1 Maximum Setpoint)
CH2 Maximum Setpoint is the maximum setpoint for a CH2 heating call when an Outdoor
Reset option is chosen in CH Demand. CH2 Maximum Setpoint is the fixed setpoint for a CH2
heating call when a Setpoint option is chosen in CH Demand. Press the LEFT or RIGHT
buttons to adjust the CH2 Maximum Setpoint then press the OK button to store the setting.
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18.3.10 CH2 Minimum Setpoint (Default: 80°F [27°C])
(For menu image, see section 18.3.5, Figure 18-11, CH1 Minimum Setpoint)
CH2 Minimum Setpoint is the minimum setpoint for a CH2 heating call when an Outdoor Reset
option is chosen in CH Demand. This setting is not applicable when a Setpoint option is chosen
in CH Demand. Press the LEFT or RIGHT buttons to adjust the CH2 Minimum Setpoint then
press the OK button to store the setting.
