Winterizing; Freeze Protection Program And Its Limits; Spring Start-Up - Aquacal DIG-220 Owner's Manual

Information Critical to the Survival of Your Chlorinator

Winterizing

In areas that experience severe cold weather, or extended periods of freezing temperatures, the DIG-220 should be winterized by draining all water from the Manifold
Assembly (Pool Pilot Cell and Tri-sensor), pump, filter, supply and return lines prior to freezing weather, the Digital Manifold (including the Pool Pilot Cell and Tri-sensor) will
be damaged by freezing water. The DIG-220 power supply is not affected by the cold and does not need to be removed.
NOTICE

Freeze protection program and its limits

When configured to control the circulation pump, the DIG-220 can reduce the possibility of freeze damage to the filter and pipes in milder climates where freezing weather is
not normally expected. Winterizing procedures should be done prior to periods of freezing temperatures.
The DIG-220 will turn on the pump and circulate pool water while the water temperature is below 40°F (4.4°C). Circulating the pool water will reduce the possibility of
damage to the filter and pipes due to freezing.
The DIG-220 freeze protect feature will NOT work properly unless all of the following conditions are met:
The DIG-220 must be powered continuously. An external switch or timer should not be used to turn off the DIG-220 power during the freezing weather.
The DIG-220 must control the power to the circulation pump.
The DIG-220 "Pump Control" must be programmed for One-speed pump (see pg. 34). When the Tri-sensor indicates that water temperature is below 38°F (4.4°C), the
Control Unit will override the normal timed program cycle and run the pump 30 minutes minimum or continuously while the water temperature is below 38°F (4.4°C).
The DIG-220 uses a temperature sensor located in the Tri-sensor to determine water temperature. If the Tri-sensor is located so that it cannot accurately detect the cold water,
then the freeze protection becomes ineffective. (For example, if the Tri-sensor is located inside a protected or warm location and the other pool components are located
in an unprotected area, the other pool components could freeze before the Tri-sensor detects the cold water.)

Spring Start-Up

It is recommended the water be manually chlorine-shocked when first starting up the pool in the spring time, test the water and add the appropriate chemicals to balance the
pool water per the levels recommended on page-24 & 25.
Be sure to check salt and cyanuric acid (stabilizer), bringing those readings up to the recommended levels. It is also a good idea to inspect the cell, manifold screen, and the
the Tri-sensor flow switch; clean and/or replace those items as necessary.
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MAINTENANCE
Important
Failure to heed the following may result in equipment damage.
Special measures are required in the event of freezing conditions.
Your DIG-220 may be damaged if measures are not taken in advance of
freezing conditions. Equipment damage due to freezing conditions is NOT
covered under the equipment warranty.