11
RECOMMENDATIONS FOR THE
HYDRAULIC INSTALLATION
• Thoroughly rinse the system before
connecting the boiler
• Water treatment is recommended to
prevent corrosion and the formation of
scale in the boiler and piping.
• If the boiler is to be installed in an
existing system, ACV recommends using
a cleaning agent in the systems.
• After connecting the hydraulic circuit,
check the absence of leaks.
• The boiler is designed to operate on a
sealed system (ie. no open vent or feed
and expansion tank).
• An adequate expansion vessel, sized
accordingly must be installed in the
system
HEATING CONNECTION
Make sure to install isolating valves on the
system heating circuit, so as to be able to
drain the boiler, without draining the whole
system.
Typical system - high temperature
1. Isolation valve
2. Circulating pump
3. Filling valve
4. Check valve
5. Expansion vessel
6. Safety valve (built-in - 4 bar)
7. Draining valve
8. Automatic air vent (built-in)
Essential recommendation for the correct operation of the system
• The drain valve (7) and safety valve (5) must be connected to the sewage system.
• The boiler is equipped with a safety valve set at 4 bar.
Cold water
Hot water
1
1
2
4
5
6
3
7
8
EN
Installation
Summary of Contents for E-tech P 115
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