Iberspa Oasis 40 Manuel D'utilisation Et D'installation page 16

RECIRCULATION CIRCUIT
The function of this circuit is to maintain the quality of the Spa water. This is achieved
by means of water recirculation through a purification filter, a heating system and a
disinfection system.
• SPA WITH OVERFLOW
Given that the Spa has an overflow, it is essential to maintain the water level constant
and at maximum level. In order to achieve this, it is necessary to install a balance
tank installed in series with the recirculation circuit. Doing so will compensate the
fluctuations in level caused by variations in the number of bathers.
Although there are different ways of setting up the recirculation circuit, we proceed
to detail the two most popular systems: "Floor suction" and "Floor return". Check the
regulations in force in each country in order to establish which system is best.
SPA FLOOR SUCTION
This option makes it possible to collect part of the recirculationwater from the Spa
floor drain.
The filtered water is absorbed both from the balance tank (mostly) and the Spa floor
drain via the filter pump, and is directed towards the sand filter, the heating and the
ozonator or disinfection system; to be directed towards the Spa via the return nozzles.
1
5
4
2
3
7
16
10
20
6
11
8
12
19
14
13
17
15
18
16
9
1 Overflow
2 Overflow drains
3 Balance tank
4 Filling solenoid valve
5 Level probes
6 Balance tank drain
7 Balance tank suction
8 Anti-return valve
9 By-pass valve
10 Drain
11 Spa drainpipe
12 Filter pump
13 Selector valve
14 Filter
15 Filter drainpipe
16 Electric Heating
17 Temperature probe
18 Flow detector
19 Ozonator
20 Spa return nozzles
103