18.2 Outline dimension and parameter of water tank ...........................................................32
18.3 Connection of waterway system ...................................................................................33
18.4 Electric wiring work ......................................................................................................34
19.1 Control board ................................................................................................................36
19.2 Electric wiring ................................................................................................................41
20.1 Check before startup .....................................................................................................47
20.2 Test run .........................................................................................................................48
21.3 Safety consideration .....................................................................................................51
21.4 Notice before seasonal use ..........................................................................................53
21.5 Requirements on water quality ....................................................................................53
