GF-135
Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A
Installation, Operation & Maintenance Manual Controller Operation
Page
130
of
188
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0089_0A
MC1 06/19/14
Ph.: 800-526-0288
18.3.17 CH Call Blocking (Default: 1 Minute)
Figure 18-21: CH CALL BLOCKING Menu
CH Call Blocking sets the minimum time between burner firings for central heating calls. At the
completion of a burner firing, the CH Call Blocking time will begin. The burner will not fire again
until after the CH Call Blocking time has elapsed. The CH Call Blocking time only prevents the
burner from firing, the central heating circulators will respond to a central heating call. This
blocking time has no affect on domestic hot water calls. The CH Call Blocking feature prevents
short cycling of the burner and extends the life of the burner components. Press the LEFT or
RIGHT buttons to adjust the CH Call Blocking time then press the OK button to store the setting.
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18.3.18 System Pump (Default: CH1/CH2)
Figure 18-22: SYSTEM PUMP Menu
System Pump allows the system pump operation to be adjusted for the application. Press the
UP or DOWN buttons to select the desired System Pump operation then press the OK button to
store the setting. The System Pump options are:
