Additional Safety, Protection And Control Devices - Immergas ARES 440 TEC ERP Instructions And Warnings

3.8 ADDITIONAL SAFETY, PROTECTION
AND CONTROL DEVICES
Certificate of additional safety devices: closely consult the legislative
regulations and safety provisions in force in the country of installation
of the appliance.
Use the fuel safety and cut-off valves suitable for application and
compliant with provisions in force.
The boiler is not equipped with an expansion vessel on the system. It
is mandatory to install a closed expansion vessel to guarantee correct
boiler operation. The expansion vessel must be compliant with standard
requirements in force. The dimensions of the expansion vessel depend
on the data for the central heating system. Install a vessel with a capacity,
determined by an authorised designer, that responds to the requisites
of the standards in force.
Safety devices.
1 Gas cut-off valve: this has the function of directly cutting-off the
gas supply if the limit value of the water temperature is reached.
The detection element must be installed as close as possible to the
generator output (flow pipe) at a distance of < 500 mm, and must
not have a cut-off device installed on it. Not supplied by Immergas.
2 Safety valve: this has the function of unloading the fluid contained
in the generator into the atmosphere when it reaches the maximum
operating temperature for any reason. Not supplied by Immergas.
2a Visible draining funnel. Not supplied by Immergas.
Set up a safety valve, on the flow pipe, sized for boiler capacity, within
0.5 m of the boiler, and in compliance with regulations in force.
Attention!
Remember it is forbidden to set up any type of cut-off
device between the boiler and the safety valve, and it
is also advisable to use valves for operation that does
not exceed the maximum allowed operating pressure.
Attention!
Set up a runoff pipe with funnel and trap on the
heating safety valve, that lead to a suitable drain. The
drain must be visually controlled.
The manufacturer will not be held liable in the case of
failure to observe this precaution, where any work on
the safety valve may cause damage to people, animals
and property.
Instructions for the installer
Protection devices.
10 Safety thermostat: this is designed to stop the generator if the safety
thermostat installed on the boiler fails to operate correctly. It must
have an IMMOVABLE calibration of < 100°C.
15 Minimum pressure switch: this is designed to stop the generator if
the minimum operating pressure drops (can be calibrated between
0.5 ÷ 1.7 bar). It must be manually re-armed.
16 Extra sleeve G1".
18 Safety pressure switch: this is designed to stop the generator if the
maximum operating pressure is reached (can be calibrated between
1 ÷ 5 bar).
Control devices.
13 (Pressure indicator - not supplied by Immergas) with (12) damper
pipe and (11) pressure gauge valve: it indicates the existing effective
pressure in the generator, it must be graduated in "bar", its full scale
must match the maximum operating pressure and be equipped with
a three-way valve with an attachment for the control pressure gauge.
14 Thermometer: this indicates the effective temperature of the water
contained in the generator, it must be graduated in centigrade with
a full scale of no more than 120°C.
17 Inspection traps: approved for the inclusion of control devices.
19 G1 ¼" stub pipes: for the inclusion of safety valves.
20 Flow switch: this is designed to stop the generator in case of poor
water circulation inside the primary ring.
3 Approved expansion vessel: this absorbs the increase in volume
of water in the system following an increase in temperature. Not
supplied by Immergas.
8 Y strainer.
7 Modulation pump (Not included in the kit).
5 Hydraulic separator (Not included in the kit).
4 Bleeder valve. Not supplied by Immergas.
6 Draining valve. Not supplied by Immergas.
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