Aquacal LTM0266 - Manual (Page 9)

Page 3
2.1.d User Level Programs
The heat pump features two levels of programming; User-level programming designed for the end user
and Service-level programming designed for the product installer. This section describes User-level
programming.
STEPS EXPLANATION
Turning Heat Pump On
Turn power on at external fuse
box or breaker disconnect.

Controller performs a lamp test. The display reads “888”.
 Controller’s software version is briefly displayed.

Controller displays as described in section entitled “LED Display” on page 2.
Setting Operating Mode (“HEA”, “COO”, or “ACH”)
Press “MODE” control button
until “HEA” is selected.
Heat pump heats water to temperature set on thermostat.
Press “MODE” control button
until “COO” is selected.
Heat pump cools water to temperature set on thermostat.
Press “MODE” button until
“ACH” is selected.
Heat pump operates in either heating or cooling mode until reaching the
temperature set on the thermostat. Once reached, the heat pump maintains the
water temperature within three (3) degrees Fahrenheit of the temperature
setting.
Turning Heat Pump Off
Press “MODE” control button
until “OFF” is selected.

Heat pump functions, values, and programming become unavailable. The
current water temperature is still displayed.

An alternate method of inactivating the heat pump is to lower the active
thermostat below 45º F. This turns the thermostat off, leaving the heat pump
itself available for programming.
Setting Thermostats
Set heat pump to an active
operating mode. See “Setting Operating Mode (“HEA”, “COO”, or “ACH”)” in this chart for more
information.
Press "POOL/SPA" control
button to select thermostat. The “Pool” or “Spa” indicator light specifies which thermostat is currently being
used.
Press “Up” or “Down” control
button to select desired
temperature.
 The “Desired Temp” indicator light illuminates.

The thermostat ’s temperature setting raises or lowers 1-degree per button
key press. The thermostat can be adjusted from a minimum of 45º F to a
maximum of 104º F. Please note - Setting the temperature below 45º F turns
the thermostat off.
Wait 15 seconds to allow heat
pump to exit programming
mode.
 The “water temp” light turns on and the current water temperature is
displayed.

If the desired water temperature is different than the current water
temperature, the heating or cooling light will illuminate and the heat pump’s
compressor will activate after a four minute time delay.
Selecting Celsius or Fahrenheit
Press and hold “Up” and
“Down” buttons simultaneously.
"CF1" (Celsius / Fahrenheit) code appears.
Press “Up” or “Down” button to
select codes “0” or “1”. Code “0” = Temperature displays in Celsius.
Code “1” = Temperature displays in Fahrenheit.
Wait 15 seconds to allow heat
pump to exit programming
mode.