AERCO KC1000 Heater Mar 2011 - Manual (Page 80)

APPENDIX A
A-2
APPENDIX A - WATER HEATER MENU ITEM DESCRIPTIONS – Continued
MENU LEVEL & OPTION DESCRIPTION
CONFIGURATION MENU
Internal Setpoint Allows internal setpoint to be set . Default is 130°F.
Unit Type Allows selection of KC Boiler, KC Boiler LN, BMK
Boiler, BMK Boiler LN, BMK Boiler Dual, KC Water
Heater, KC Water Heater LN, Water Heater 2010
Unit Size Sets unit size from 0.5 to 6.0 MBTUs. Default is 1.0
MBTU.
Fuel Type Allows selection of Natural Gas or Propane
Heater Mode It allows selection of: Constant Setpoint, or Remote
Setpoint. Default is Constant Setpoint Mode.
Remote Signal Used to set the type of external signal which will be
used when operating in the Remote Setpoint Mode.
The factory default is 4-20 mA/1-5V.
Outdoor Sensor Allows outdoor sensor function to be enabled or
disabled. Default is disabled.
Setpoint Lo Limit Used to set the minimum allowable setpoint (40°F to
Setpoint Hi Limit). Default is 60°F
Setpoint Hi Limit Used to set the maximum allowable setpoint
(Setpoint Lo Limit to 240°F). Default is 200°F.
Temp Hi Limit This is the maximum allowable outlet temperature
(40 to 240°F). Any temperature above this setting
will turn off the unit. The temperature must then drop
5° below this setting to allow the unit to run. Default
Hi Limit is 210°F.
Max Valve Position Sets the maximum allowable valve position for the
unit (40% to 100%). Default is 100%.
Pump Delay Timer Specifies the amount of time (0 to 30 min.) to keep
the pump running after the unit turns off. Default is
zero.
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
heater. 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.
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.
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.