Expansion Tank, Safety Lines And Pump Size; Electrical Connection - Baxi Solo Innova Instructions Manual

3.5.3 Pipe connections – choice of material
3.5.4 Immersion tubes and collars
3.5.5 Protection against freezing
3.6

Expansion tank, safety lines and pump size

3.6.1 Expansion tank
3.6.2 Safety valves and safety leads
3.6.3
Pump size
3.7

Electrical connection

3.7.1
Electrical connection
3.7.2
Description of functions
3.7.3 The boiler regulator and its installation
INSTRUCTIONS
A copper/steel mixture can be used for the heating side.
The built-in heat exchanger is made of copper.
Copper followed by galvanised piping (in the direction of the water flow) should be
avoided for hot water for reasons of corrosion protection. However, galvanised cold
water piping and copper piping can be used for hot water.
The out- and return flows must be carefully insulated to avoid heat loss.
Remember to install the immersion tube provided in the corresponding collar.
(Immersion tubes are supplied with the boiler regulator.)
Remember to cap collars which are not used in the chosen form of installation.
The central heating system can be protected against freezing with anti-freeze (see 1.6.2).
The size of the expansion tank is determined by the total water content of the heating
system.
Provide safety valves, overflow from safety valve, running-dry protection and
expansion tank in accordance with applicable standards and regulations.
Safety valves and running-dry protection should be installed directly at the flow pipe
(no valves).
The size of the circulation pump is determined by the size of the system and the pipe
dimensions and version.
The boiler is connected via the cable supplied: phase/neutral and earth.
There must be a cut-out in the permanent installation.
See Section 4 for circuit diagrams.
(See circuit diagram Section 4. Note in brackets (see Section 1.4).
To start the boiler from cold, the reset switch (N) S7 must be pressed, after which:
- Relay K2 cuts in
- and remains active for the time being.
- K2 switches fan M6 and circulation pump M7 on.
When the boiler temperature reaches the min. thermostat setting - B15
- K2 cuts out.
Boiler thermostat B16 then regulates the boiler.
If the boiler temperature again falls below the setting in min. thermostat B15
- Fan M6 is switched off.
- Circulation pump M7 is switched off.
If the boilertemperature reach the coupling point of the boiler thermostat B16 (app. 85-
93°C) the pump M7 will be switched on again in order to lead supplies of energy from
the boiler into the storage tank, and to avoid activating the thermal outflow protection
The boiler regulator is supplied in the packet.
Installation sequence:
- Install the control panel in the front of the boiler (see Section 4.2)
- Place the sensors in the (two) immersion tubes and gently bend and lock the capillary
tube.
N.B.!
The thin sensor for the min. thermostat is embedded in the fan's immersion tube. The
thin sensor is connected to boiler regulator min. thermostat B15.
- Set the min. thermostat to 90°C (see Section 3.7.5).
- Connect the cable to the circulation pump and the mains.
Solo Innova
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Phase + neutral + earth (230 V + earth).