tekmar 664 Snow Detector & Melting Control Installation - Manual (Page 3)

3 of 36 © 2009 D 664 - 07/09
Display
Symbol Description
Open / Close
Displays when the actuator is opening or
closing the mixing valve. Lock / Unlock
Displays when the access levels are
locked or unlocked.
Mixing Device Output Scale
Shows output of injection pump, mixing valve
or 4-20 mA device. Arrows show whether the
output is increasing or decreasing.
Burner
Displays when the Stage 1 and / or
Stage 2 relay is turned on.
Pump
Displays when the system pump is operating.
Pointer
Displays the control operation as
indicated by the text.
Override
Displays when the control is in override mode. °F, °C, min, hr, sec
Units of measurement.
Warning
Displays when an error exists or when a limit
has been reached.
Zone
Displays when a zone is in operation.
Melt Demand
Idle Demand
WWSD
Minimum
Maximum
Water
Melting
Item Field
Displays an abbreviated
name of the selected item
Menu Field
Displays the
current menu
Status Field
Displays the
current status
of the control's
inputs, outputs
and operation
Number Field
Displays the current value of the selected item
Buttons
Selects Menus, Items
and adjust settings