Instruction Manual
18
3.5 CONNECTION TO THE GAS INSTALLATION
Connect a gas supply pipe directly to the gas connection of the boiler using a connector with subassembly no 0696.00.00.00
(in boiler equipment).
NOTE!
It is necessary to install a gas filter on the gas supply pipe to prevent harmful deposits from interfering with
the boiler, ensuring the proper operation of the gas unit and burner. This filter is not included with the standard boiler
equipment. It should be purchased separately.
NOTE!
Before installing the boiler, thoroughly flush the central heating system to free it from any solid impurities. It is
recommended after the first start up of the boiler and heating of the installation to drain the water from the system to remove
any residues of a metallurgical nature. This precautionary measure would benefit the device’s operation and promote the
effective long-term use of its components.
Install a cut-off valve on the gas pipe in an accessible location.
3.6 CONNECTION OF THE BOILER TO A CENTRAL HEATING WATER SYSTEM
•
Power supply and return connectors of the central heating boiler should be screwed to the installation. See Figure
3.3.1 for the location of the connectors.
•
Install a water filter on the return water from the central heating system (in front of the connection with the pump).
The filter is not included with the standard boiler equipment.
•
The C.H. system should be thoroughly rinsed out before the boiler is connected. It is permitted to use a suitable
antifreeze fluid as a heat carrier in the winter season.
•
Cut-off valves need to be installed between the boiler and the C.H. system so that the boiler can be dismounted
without draining the system. Do not install any thermostatic valves on radiators in the room where a thermostat is
installed as their operation and communication with the boiler will be in conflict with one another.
•
It is recommended to lead water out from the safety valve (item 25, 3 bar) to a floor drain using a tube or hose to
reduce the risk of flooding during the safety valve activation (excluded of manufacturer’s liability if flooding occurs).
Selection of expansion vessel
The X Boiler can be connected to a central heating system that has a maximum capacity of 105 liters. Connecting the boiler
to a C.H. installation which requires a larger capacity is acceptable only after connecting an additional expansion vessel
to the boiler. The vessel should be selected with reference to the design of the C.H. system and installed by an approved
contractor in accordance with applicable regulations.
After boiler installation:
•
It is recommended to drain the water from the system first to remove residues and dirty water after the 1
st
start up of
the boiler and heating up of the installation. Install a filling valve from the installation. The pressure in cold installation
should be in the range 1,0 to 1,5 bar (indicated by manometer).
•
Vent the installation of the central heating and boiler;
•
Check the tightness of the boiler connections in the central heating system.
•
Install a filling valve and fill the heating system with water.
Fig. 3.5.1 Boilers installation requirements
