Immergas SUPER TRIO TOP Instructions Booklet And Warnings page 77

6 Eliminate any air in the solar circuit preferably using the so-
called "pressure shot" method, which consists in raising the
filling pressure of the circuit followed by a quick opening of
the return valve (8). This method allows air to be expelled from
the circuit.
7 Close the filling cock / tap and switch the filling pump off,
open the adjustment screw of the flow rate regulator (notch in
vertical position).
8 Leave the circuit pressurised. Any pressure drop indicates a
leak in the system.
9 Set the functioning pressure in the circuit at 1.5 bar +
0.1 bar for every metre in the distance between the so-
lar collector and the expansion vessel (practically, set the
same pressure between expansion vessel and system).
N.B.: Do not exceed 2.5 bar.
10 Switch the solar pump on at a maximum speed and make it
function for at least 15 minutes.
11 Disconnect the filling pump and close the fittings using the
relevant screwing plugs.
12 Open the ball valve above the pump completely.
Do not fill the system in conditions with strong insolation and
with the manifolds at high temperatures.
Make sure that all air bubbles have been completely eliminated.
1.27 SIZING THE SYSTEMS.
The flow temperatures to the various system zones may be reduced
compared to the Internal Unit outlet temperatures, according to
the mixture of the flow and return fluids inside the manifold of
the hydronic unit including the second optional zone installed. In
the event that the two-zone hydronic unit is used to feed mixed
zones, check that the design parameters allow you to achieve a
maximum surface temperature of the radiant floor in compliance
with national standards in force.
1.28 KITS AVAILABLE ON REQUEST.
• System shut-off valves kit (on request). The kit is designed for
the installation of system interception cocks, to be placed on
the flow and return pipes of the connection assembly. This kit
is particularly useful for maintenance as it allows the kit to be
drained separately without having to empty the entire system.
• Connection unit (on request). The system is dispatched from the
factory without the connection unit. The kit includes the pipes
and fittings for connecting the pack. It is also possible to select
the connection choosing between the kit with bottom, rear or
side connection.
• Solar heating system coupling kit. The system is designed to be
combined with the thermal solar system as supplementary energy
source. The coupling kit is supplied complete with expansion
vessel, circulation unit and solar control unit.
• Second mixed zone additional kit. An independent mixed zone
is added using this kit (second zone) for coupling the Internal
Unit inside the Super Trio Top.
The above-mentioned kits are supplied complete with instructions
for assembly and use.
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