tekmar 257 DHW Control - Manual (Page 3)

3 of 12 © 2009 D 257 - 03/09
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POINTER
Displays the control operation as indicated
by the text.
HEAT RELAY
Displays when the HEAT 1 relay is closed.
HEAT RELAY
Displays when the HEAT 2 relay is closed.
° °F ° °C
°F, °C
Units of measurement
PRGM
PROGRAM MENU
Program the control settings.
Symbol Description
Display
Stage Mode Delay
Target DHW
Differential DHW
Item
Number Field
Displays the current value
of the selected item
Item Field
Displays the current
item selected.
Menu Field
Displays the
current menu
Buttons
Selects Menus, Items
and adjusts settings
Status Field
Displays the current status
of the control’s inputs,
outputs and operation