GF-135
Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A
Installation, Operation & Maintenance Manual Controller Operation
Page
139
of
188
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0089_0A
MC1 06/19/14
Ph.: 800-526-0288
18.4.6 DHW Storage Adder (Default: 46°F [25°C])
Figure 18-32: DHW STORAGE ADDER Menu
DHW Storage Adder is used to compute the boiler setpoint when the Sensor option is chosen in
DHW Demand. The boiler setpoint will be DHW Storage Se DHW Storage Adder for a
domestic hot water call. Press the LEFT or RIGHT buttons to adjust the DHW Storage Adder
then press the OK button to store the setting.
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18.4.7 DHW Post Pump Time (Default: 1 Minute)
Figure 18-33: DHW POST PUMP TIME Menu
DHW Post Pump Time sets how long the domestic hot water circulator will continue to operate at
the completion of a domestic hot water call. Any call during the DHW Post Pump Time will be
ignored until the post pump has completed. The DHW Post Pump feature allows the heat
remaining in the boiler at the completion of a call to be sent to the Indirect Water Heater, which
will improve the overall efficiency of the system. Press the LEFT or RIGHT buttons to adjust the
DHW Post Pump Time then press the OK button to store the setting.
