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GF-135
Esteem 399 Low NOx Boiler
OMM-0089_0A
Installation, Operation & Maintenance Manual
18.9 CASCADE INFORMATION
MENU ......................................................................................................... 158
18.9.1 System Temperature Logging ................................................................................................................. 158
18.9.2 Cascade Settings
Menu ................................................................................................................... 159
18.9.3 Stage Delay (Default: 60 Seconds) .......................................................................................................... 160
18.9.4 Minimum firing Rate (Default: 30%) ....................................................................................................... 160
18.9.5 Boiler Enabling Algorithm ....................................................................................................................... 161
18.9.6 Boiler Disabling Algorithm ...................................................................................................................... 161
18.9.7 Maximum Firing Rate (Default: 398 MBH).............................................................................................. 161
18.9.8 CH or DHW Boilers (Default: 0) ............................................................................................................... 162
18.9.9 Automatic Rotation (Default: Enabled) ................................................................................................. 163
18.9.10 CH Proportional Gain (Default: 7) ......................................................................................................... 164
18.9.11 CH Integral Gain (Default: 245) ............................................................................................................. 165
18.9.12 DHW Proportional Gain (Default: 7) ..................................................................................................... 166
18.9.13 DHW Integral Gain (Default: 245) ......................................................................................................... 167
18.9.14 Modbus Address (Default: 0 = BcST) .................................................................................................... 168
18.9.15 Modbus Interface ................................................................................................................................. 169
18.10 MANUAL OPERATION .................................................................................................................................. 171
18.10.1
Fan Parameter .............................................................................................................................. 171
18.10.2
CH CH1 Parameter ........................................................................................................................ 172
18.10.3
DHW Parameter............................................................................................................................ 172
18.10.4
SYS CH2 Parameter ....................................................................................................................... 173
APENNDIX A: PART AND DIMENSIONAL DRAWINGS.................................................................... 175
APENNDIX B: CIRCULATOR PRESSURE LOSS CHARTS .............................................................. 183
Page 8 of 188
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
MC1 06/19/14
Ph.: 800-526-0288