Installation Of The Unit; Connections; Hydraulic Connections - Zodiac Heatline 20 Montage- Und Gebrauchsanleitung

3. INSTALLATION OF THE UNIT

The exchanger shall be placed in a technical equipment area (ventilated, dry and without stored pool
maintenance substances), close to the heat source (boiler, heat pump,geothermal energy, solar
heating...) and to the filter of the pool. It shall be fixed horizontally to the wall using an angle bracket (not
provided).
If the heat source is far from the facility, plan to install the heat exchanger close to the heat source in
order to limit the losses of calories in the primary circuit. Plan the connection at the pool by ducts buried
in a trench at 50 cm depth, in Ø50 (or Ø 63 if the circuit is more than 30 metres there and back).
Notice: If the exchanger is far away from the heat source, provide the hydraulic connection with appropriate section
taking account of the distance, the flow rate and the pressure drop. In any case, these connections shall be
properly insulated and fitted with automatic air bleed on high points of the circuit.

4. CONNECTIONS

4.1 Hydraulic connections

Circuit to pool: the exchanger shall be connected to the filtration circuit, with a minimum flow rate of
5m³/h up to 22m³/h. Plan for a by-pass fitting if the filter is above 22 m³/h or to facilitate the maintenance
of the appliance. Water inlet on the left (factory configuration) or the right side by turning of the whole of
the device's body.
Circuit to boiler: the exchanger shall be connected directly to the primary circuit of the heat source
supplying constant temperature (90°C/70°C mandatory, maximum pressure 3 bars). Primary circulation
will be provided by a pump and non-return valve to avoid thermosiphoning.
Circulation direction: circulation of both circuits shall be counter-current. Caution, pool water inlet shall
always be on the side of the thermo-well.
Tested pressure of hydraulic circuit: 4 bars
House heating
TO RADIATORS
circulation pump
House heating
3 Way valve
Aquastat
E = From pool
S = To pool
Installation advised:
X = Y: minimum 15 to 20 cm
Note 1: advised fitting to retain water permanently in the exchanger body.
Note 2: advised fitting to avoid aggressive chlorine feedback into the heater when the filtering is stopped
Valves
Electrical
regulation box
Pressure valve
Expansion vessel
Gas or Fuel-oil boiler
X
Y
Heatline
3
Service pressure of hydraulic circuit: 2 bars
Pool water filtration circuit
Primary circuit
House heating circuit
Circulating pump
E
Pump
Filter
Water treatment
Automatic air bleed
Check valve
Control via a flow rate
controller (in option)
S
Water treatment
Heatline
GB