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STEPS
Press "Up" or "Down" button
once to display the current
temperature value of the defrost
sensor.
Press "Up" or "Down" button to
match temperature reading
obtained by clamp-on device.
Wait 15-seconds to allow heat
pump to exit programming
mode.
Set system controls to desired
mode of operation.
Adjusting Dead Band Differential
The dead band differential determines the number of degrees the water temperature must rise or fall below the set
point before calling for heating or cooling. Unless instructed by AquaCal AutoPilot Technical Support Group, the
installer should not adjust sensor calibration or dead-band values. The steps below outline the procedure.
Enter Service Menu
Press "Pool/Spa" button until
"dBS" is displayed for Spa or
"dBP" is displayed for Pool.
Press "Up" button once to
display current setting.
Press "Up" or "Down" button to
adjust differential in 1-degree
increments.
Wait 15-seconds to allow heat
pump to exit programming
mode.
Re-Setting Heat Pump ("Back Door" Entry)
The factory "Back Door Entry" will reset the service lock code back to the factory setting "50".
Simultaneously Press
"Pool/Spa" button and "Up"
button until display shows "888".
Release buttons.
Compare controllers displayed defrost sensor temperature against reading
obtained by clamp-on device.
If the defrost temperatures is within 1°F, no calibration is necessary.
If the temperatures differ by 2° to 3°F, calibration is necessary, proceed to
next step.
The controller can be adjusted to plus or minus 10°F from the nominal
displayed temperature. Please note - offset calibrations greater than 3°F,
however, should be avoided. Such large offsets generally indicate problems
with the method of defrost temperature measurement, a defrost sensor not
properly attached to the suction line, or other equipment issues. Do NOT
attempt to mask such issues through offset calibration.
Front panel can be re-attached. Calibration is complete.
If needed, see "Setting Operating Mode" on page 4.
If needed, see "Entering Service Menu" in this chart.
This is the entrance point for the Dead-band Differential adjustment menu.
The differential is adjustable in 1-degree increments from 1 to 5-degrees
Fahrenheit.
1 degree = .5 degree above or .5 degrees below water temperature.
2 degree = 1 degree above or 1 degree below water temperature.
3 degree = 1.5 degree above or 1.5 degrees below water temperature, etc.
Calibration is complete.
CAUTION - Using this option will RESET ALL SETTINGS TO THE FACTORY
DEFAULTS.
This includes external controller configuration and will require re-entry of any site
condition settings. See "Microprocessor Default Parameters" for a complete list
of factory default parameters on page 28.
EXPLANATION
Page 27
Table 9
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