Idegis DOMOTIC SERIES, Hardware Installation And Maintenance Manual

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13
o
[or]
ORP / RESIDUAL CHLORINE control (unavailable in DOMOTIC-XX PLUS models): input for potential-free contact. This
input can be used to install an external controller of the electrolysis system (ORP, RESIDUAL CHLORINE, PHOTOMETER,
etc.). To that purpose connect two cables from the potential-free contact, placed in the external controller, to the
corresponding input [or] placed in the system’s control card.
Fig. 20
4.9.
Start-up
1. Check that the filter is 100% clean, and ensure that the swimming pool and the installation do not contain copper, iron or algae. Ensure
that any heating equipment on the pool is suitable for use in salt water.
2. Ensure that the swimming pool water is balanced, because like that the chlorine produced is used more efficiently and effectively, and
ensures that the life of the electrodes is prolonged. Water should be maintained within the parameters shown below.
a) pH must be in the range 7.2-7.6
b) Total alkalinity must be in the range 60-120 ppm
3. Although the DOMOTIC Series system can operate within a salinity range of 4 – 6 g/l, the minimum recommended level of salt, 5 g/l, should
be maintained by adding 5 kg per m
3
of water if the water did not previously contain salt. Always use common salt (sodium chloride), without
additives like iodides, that is “apt for human consumption”. Never add the salt through the electrolysis cell. Add it directly to the swimming
pool or into the balance tank.
4. When adding the salt, and in case the swimming pool is going to be used immediately, carry out a treatment with chlorine. An initial dose of
2 g/m
3
of trichloroisocyanuric acid may be added.
5. Prior to starting up the salt chlorinator, disconnect the power supply to the salt chlorinator and run the pump for 24 hours to ensure that the
salt is completely dissolved.
6. Next, reconnect the power supply and turn on the salt chlorinator, locating the production level so that free chlorine concentration stays
within the recommended range (0.5 – 1.5 ppm).
NOTE: in order to establish the free chlorine level you will need to use a test kit.
7. In outdoor swimming pools it is advisable to maintain a level of 25-30 g/m
3
of chlorine stabiliser (cyanuric acid) in the pool. A level of 75
ppm should be never exceeded. This will help to stop the chlorine that is in the water from being destroyed by the sun.