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THE FOLLOWING CODES WILL BE DISPLAYED AS PART
OF THE NORMAL OPERATION OR PROGRAMMING OF THE HEATER:
Operational & Programming Codes
FLO..... No Water Flow Detected. This code appears whenever the circulating pump is off, or when
the heater is not receiving correct water flow .
OFF..... System is Off. This code appears whenever heater has been turned off via the mode
selector button, or when the temperature set point has been lowered below 45
o
F.
CFI...... Celsius/Fahrenheit Selection. This is a programming entry point to select in which format
the water temperature will be displayed.
ULC..... User Lock Code. This is a programming entry point; when activated, steps to the next
menu level: ELC.
ELC..... Enter Lock Code. This a programming entry point; permits end user to select a secret
code, thereby limiting access to the owner settings.
CFO..... Call Flex Options. This is a programming entry point; when used in conjunction with an
AquaCal Call/Flex option kit, permits the use of CALL or FLEX options.
FS....... Heater in Defrost Mode (Applicable to Heat-Only Units, only). This code appears as a
normal display during periods of lower air temperatures. Sequence follows:
Heat-Only Defrost Sequence: Fan continues to run and compressor is off. Compressor
will restart when air coil temperature rises to approximately 38°F.
LOC..... This is a Service Entry Point (not intended for use by the owner). The[LOC] code permits
service personal to enter a factory code for access to adjustable calibration and site-
dependant setup parameters. Service adjustments are available to authorized installation
and service personnel, only .
HEATER CONTROLS...continued
Failure to heed the following may result in equipment dam-
age and voiding of manufacturer’s warranty.
CAUTION !
Heat pumps contain no owner-serviceable components. Owner-initiated adjustments, beyond
the controller “LOC” code, must not be attempted. If adjustments are deemed necessary, the
owner should contact inst alling dealer or AquaCal Customer Support at (727-823-5642).