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10. Fan Speed Control… This option is not applicable to any current models. If option present,
factory default setting of “80” MUST
remain. Controllers Version .06 or newer will not
contain a FAN option.
LEVEL-1 DISPLAY CODES
Menu Codes Description Function
[FLO] No water flow
detected
Displayed Code Message: Appears whenever the circulating
pump is off, or when the heater is not receiving correct
water flow.
[OFF] System is off
(With arrow key depressed)
Displayed Code Message: Appears whenever system is off,
and until temperature set point is raised above 60° F.
[CFI] Celsius Fahrenheit
selection
Programming Entry Point: Allows temperature read-out to
display either Celsius or Fahrenheit.
[ULC] User Lock Code Programming Entry Point: When activated, steps to the next
menu level [ELC] (enter lock code).
[ELC] Enter Lock Code Programming Entry Point: Allows end user to select a secret
code so only authorized persons can change heater settings.
[CFO] Call Flex Options Programming Entry Point: When activated, steps to the next
menu level [CFS] (Call or Flex selection)
[FAN] Two speed fan control Programming Entry Point: This option is not applicable to
any current model; leave at factory default of “80”.
[LOC] Entrance to Service
Menu
Service Entry Point: The [LOC] code allows service
personal the ability to enter a factory code and access
service adjustable parameters in the software that may
require calibration or adjustments. This menu is available
only to authorized service personnel.
END Level-1 (Owner Accessible) FEATURES