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DIGITAL CONTROLLER- OPERATIONAL DISPLAYS
T
HE FOLLOWING CODES WILL BE DISPLAYED AS PART
OF THE NORMAL OPERATION OF THE HEATER
:
OPERATIONAL CODES
o FLO—No water flow detected. Code message will appear any time the
circulating pump is off, or when the heater is not receiving correct water
flow.
o OFF—System is off. System is off until temperature set point is raised
above 60°F.
o CFI—Celsius / Fahrenheit Selection.
o ULC—User Lock Code. When activated, steps to the next menu level:
ELC.
o ELC—Enter Lock Code. Allows end user to select a secret code so only
authorized persons can change heater settings.
o CFO—Call Flex Options. When activated, steps to the next menu level:
CFS.
o CFS—Call or Flex selection. Allows user to choose between call or flex
options.
o FS—Heater in defrost mode. Normal function in lower air temperatures.
Fan continues to run and compressor is off. Compressor will restart when
air coil temperature rises to approximately 38°F.
IMPORTANT !
F
OR A MORE DETAILED EXPLANATION OF DIGITAL CONTROLLER
OPERATION
,
AND ASSOCIATED DISPLAY CODES
,
SEE
O
WNER
’
S
I
NSTRUCTIONS FOR
HP7 D
IGITAL
H
EAT
P
UMP
C
ONTROLLER
LOCATED IN THE APPENDIX OF THIS MANUAL
.