Installation
Condens 7000 FP – 6721846699 (2022/12)
22
Fig. 26 Hydraulic connections at the boiler (shown: right-hand version)
[1] Boiler safety connection
[2] Boiler flow
[3] Boiler return
Position and dimensions of connections Chapter 2.9, page 8.
5.8.1 Connecting the flow
With flanged connection (Tab. 8, page 21):
Insert a gasket between the flange on the floor standing boiler and the
flange on the flow pipe.
Secure the flange connection with 4 bolts, washers and nuts
(maximum tightening torque50 Nm).
5.8.2 Connecting the return
We recommend fitting a dirt filter (accessory) on site in the return to
prevent contamination of the boiler by the water.
With flanged connection (Tab. 8, page 21):
Insert a gasket between the flange on the boiler and the flange on the
return.
Secure the flange connection with 4 bolts, washers and nuts
(maximum tightening torque50 Nm).
Connect the expansion vessel
To safeguard individual boilers, an accessory set (expansion vessel) can
be connected to the drain connection, in accordance with EN 12828.
Observe the installation instructions for the accessories.
Remove the drain valve mounted on the return (Fig. 27)
Unscrew the 2” reduction.
Mount accessory set with gasket (tightening torque: 35 Nm).
Install expansion vessel on site to maintain the system pressure in the
return on the intake side of the pump.
Fig. 27 Disassembly drain valve (shown: right-hand version)
[1] Accessory set expansion vessel connection set
Connecting the drain valve on site
Observe the installation instructions for the accessories.
To enable a topping up of the fill water, instruct the user about the
location of the drain valve.
Install the fill and drain valve in the return outside the floor standing
boiler.
5.8.3 Installing the safety assembly on the flow (on site)
NOTICE
Risk of system damage due to faulty assembly!
Install the safety valve and air vent or safety assembly on the safety
connection of the flow.
The safety assembly (accessory) comprises an air vent for ventilation
of the boiler (not the heating system) and a pressure gauge and enables
the adoption of a safety valve (additional accessory) and both maximum
pressure limiters.
If these accessories are not used, a pressure relief valve, pressure gauge
and automatic air vent valve must generally be installed in the flow,
upstream of the first shut-off device.
Subject to operating pressure, different pressure relief valves are
required.
0010041096-001
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