Product Manual

05/19/2016 13 BI514
OPERATIONAL TIPS
Energy Selector Switch
 If this system does not have a standby operating (gas or oil) boiler, this switch
must always be in the “normal” position.
 To activate standby boiler, simply position front panel switch to “standby”.
Monitor Lights, Front Panel
 190°F AUTO RESET LIMIT, red – this will only
illuminate when the vessel hi-limit opens due to
excessive high water temperature. This hi-limit is
self-resetting.
 BOILER POWER, green – basically this is
illuminated at all times. It represents 24-volt power
source, good fuse, controller logic is operational,
and a good outlet sensor. If the outlet sensor is
inoperative, incorrectly wired, or malfunctioning;
this green monitor LED should be in the blinking or
pulsing mode (see Troubleshooting section).
 ELECTRIC MODE, amber – when illuminated the
system is in the electric mode. If it is not
illuminated the utility load control receiver is in the
interrupt or on-peak mode. If there is an optional or
remote standby switch, the status of the standby
switch is also monitored by this amber LED.
 THERMOSTAT CALL, red – indicates a remote
switch closure (t-stat or zoning end switch) is
closed between terminals R and W.
Inside Controller Board
STAGES, red – these four LED’s indicate which electric element stages are on and active.
Flow Switch Statement
A flow switch is not included with the boiler. However, one can be added to the LMC circuit. Simply
place the field provided flow switch in series with this circuit.
NOTE: The “L/W” (J3) jumper must be in the “W” position.