AERCO BMK 6000 Dual Fuel - Manual (Page 158)

Benchmark 6000 DF Installation, Operation & Maintenance Manual
APPENDIX A – BOILER MENU DESCRIPTIONS
Page 158 of 219 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0096_0B
03/21/2014
Ph.: 800-526-0288
GF-141
APPENDIX A: BOILER MENU ITEM DESCRIPTIONS – Continued
MENU LEVEL & OPTION DESCRIPTION
CONFIGURATION MENU (Cont.)
Aux Start On Dly Specifies the amount of time to wait (0 to 120 sec.)
between activating the Aux Relay (due to a demand)
and checking the pre-purge string to start the boiler.
Default is 0 sec.
Failsafe Mode Allows the Failsafe mode to be set to either
Constant Setpoint or Shutdown. Default is
Shutdown.
Analog Output Must be set to Valve Pos 0-10V for BMK 6000.
Lo Fire Timer Specifies how long (2 to 600 sec.) to remain in the
low fire position after ignition, before going to the
desired output. Default is 2 sec.
Setpt Limiting Setpoint Limiting can be Enables or Disablled. The
default setting is Enabled.
Setpt Limit Band The Setpoint Limit Band can be set from 0 to 10.
The default setting is 5.
Network Timeout Specifies the timeout value (seconds) before a
Modbus fault is declared. Available settings range
from 5 to 999 seconds. Default is 30 seconds.
HI DB Setpt EN Operating at a Valve Position below this value will
inhibit the DEADBAND feature. When operating at a
Valve Position below this value, the effective
Setpoint is equal to Active Setpoint + DEADBAND
HIGH.
Setting range is from 0 to 100. (Default is 30)
Demand Offset This entry will reduce excessive ON/OFF cycling in
AUTO mode. When this entry is a non-zero value,
the unit will not turn on again until Valve Position In
reaches the Start Level value AND the Outlet
Temperature goes below the Active Setpoint –
Demand Offset. In addition, the boiler will fire at the
29% Valve Position level or below for a period of
one minute.
When this entry is set to zero, the unit will turn on
again as soon as the Valve Position in reaches the
Start Level value. There will not be a one minute
delay when firing at the 29% Valve Position level.
Setting range is 0 to 25. (Default is 10)