Safety Backwash; Run Dry Safety Feature - Astralpool APR-3 Serie Instrucciones De Funcionamiento

4.6 Safety Backwash

When backwashing your sand filter, the pool water does not pass through the cell. During the
backwash and rinse process, most chlorinators will build up potentially explosive hydrogen gas
in the Chlorinator Cell.
The Safety Backwash function allows the pump to turn on without applying power to the
Chlorinator Cell. This prevents the build up of hydrogen gas during the back wash and rinse
process. In addition, the Safety Backwash function has set run times after which the pump will
automatically turn off. This will prevent extended backwashing and potential excessive water
loss from the pool.
To Back Wash and Rinse your filter follow these steps:
1. Press the pool mode button to the "off/standby" mode
2. Turn the Multiport Valve to "Backwash" position
3. Press the Safety backwash button on the user panel – the pump will now start without
applying power to the chlorinator cell
a. Press once for one minute pump operation
b. Press twice for two minute pump operation
c. Press three times for three minute pump operation
d. Press a four times to turn pump off
4. After pump turns off turn the filter multiport valve to Rinse
5. Press the Safety backwash button on the use panel once for a one minute rinse
6. When pump turns off, move the multiport valve back to filter position
7. Press the pool mode button to "Auto" function so that chlorinator will operate on time
clock settings.

4.7 Run Dry Safety Feature

Your APR Chlorinator incorporates a run dry safety cut out.
filter pump on, it will check for water flow. If no water flow is detected within 3 minutes, the
chlorinator will turn the pump off. This is designed to protect the pump seal and parts from
overheating if no water flow is present.
On initial start up, you will need to prime the pump. In some cases, the pump will take more
than three minutes to prime and for water flow to be detected by the chlorinator. If this should
occur, simply start the pump again by pressing the Pool Mode button to "on".
If during normal operation, the chlorinator switches the pump off after three minutes, then
check the position of all valves, empty skimmer basket and pump basket and clean the filter.
Please see page 12 for the recommended method of Cell Cleaning.
APR Salt Chlorinator (V3)
When the Chlorinator turns the
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