tekmar 423 Universal Reset Module - Manual (Page 4)

© 2007 D 423 - 08/07 4 of 36
PUMP
Displays when the primary pump is in
operation.
BURNER
Displays when the Stage 1 or Stage 2
contacts are closed.
LOCK
Displays when the access levels are
locked.
WARNING
Displays when an error exists.
COMMUNICATION BUS
Displays when tN4 thermostats are
connected.
DHW PUMP OR VALVE
Displays when the DHW Pump or DHW
Valve is in operation.
°F, °C, %, HOURS, MINUTES
Units of measurement.
BOILER DEMAND
Displays when a Boiler Demand is
present.
MIX 1 DEMAND
Displays when a Mix 1 Demand is present.
MIX 2 DEMAND
Displays when a Mix 2 Demand is present.
MIX 3 DEMAND
Displays when a Mix 3 Demand is present.
DHW DEMAND
Displays when a DHW Demand is present.
SETPOINT DEMAND
Displays when a Setpoint Demand is present.
DEVICE OUTPUT SCALE
Displays the output of the modulating boiler(s)
or the variable speed injection pump.
Item Field
Displays an
abbreviated name
of the selected item
Number Field
Displays the
current value of
the selected item
Status Field
Displays the current
status of the control’s
inputs, outputs and
operation. Most symbols
in the status field are
only visible when the
VIEW Menu is selected
Menu Field
Displays the
current menu
Display
Symbols Description