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SunTouch Pool and Spa Control System Installation and User’s Guide

Advanced Menu (8/13): Calibrate water, air and solar sensors

The SunTouch system includes two temperature sensors for monitoring water and ambient air temperature. An
additional air sensor for controlling solar heating systems can also be installed for solar systems. Generally,
these sensors are accurate and do not require calibration. However, long plumbing runs and water features
can cause temperatures at a body of water to be different from the temperature sensor reading. You can
manually recalibrate the sensors to adjust for this. You only need to calibrate one body of water, since the
temperature sensor is common to both the pool and spa.
Calibration
Before you start, you’ll need an accurate all weather thermometer. When calibrating the air sensor, wait until
the sensor is not in direct sunlight. For the air temperature sensor, make sure that the sensor is located in the
shade for accurate readings.
To calibrate the water temperature sensor:
Menu button: Select the Advanced menu.
Right button: Press the button until Calibrate Water is displayed.
Up/Down buttons: To adjust the temperature use these buttons to raise or lower the
water temperature to match the corresponding thermometer temperature reading.
When calibrating the water sensor, first switch off the heater. Check that the “Pool”
filter pump circuit is set to “ON” to switch on the pool filter pump or press the Spa
button (Up button) to circulate the water. Place the thermometer in the spa or pool
water. Take an accurate temperature reading.
Right button: Select Calibrate Air.
Up/Down buttons: To adjust the temperature use these buttons to raise or lower the
water temperature to match the corresponding thermometer temperature reading.
When calibrating the air sensor, place the thermometer next to the air sensor. The air
sensor is normally located near or under the SunTouch enclosure, not inside the
enclosure. Take an accurate temperature reading in the shade.
Right button: Select Calibrate Solar.
Up/Down buttons: To adjust the solar temperature use these buttons to raise or
lower the water temperature to match the corresponding thermometer temperature
reading. Be sure that the solar sensor is in the sun for accurate readings.
Left button: Press the Left button to return to the main status screen.
Calibrate Water
Temp: 72 F
Main Menu 8/13
Advanced
Calibrate Air
Temp: 77 F
Calibrate Solar
Temp: 73 F