17
Instructions for the installer
3.2 REGULATIONS FOR INSTALLATION
Installation must be carried out by a professionally authorised company,
who is in charge of enforcing observance of all local and/or national
laws published in the Ocial Gazette, as well as all applicable technical
regulations.
3.3 PREVENTATIVE CHECKS AND
ADAPTATION OF THE SYSTEM
When the appliance is installed on existing systems, make sure that:
- e ue is suitable for condensation appliances, for the temperatures
of the combustion products, calculated and built in accordance with
regulations in force. at is it a straight as possible, water-tight and
insulated and does not have any obstructions or constrictions.
- e ue is equipped with an attachment to evacuate the condensation.
e boiler room is equipped with a pipe for the evacuation of the
condensation produced by the boiler.
- e electrical system is built in accordance with specic regulations
and by professionally authorised company.
- e ow rate, head and direction of ow of the circulation pumps is
appropriate.
- e fuel feed line and any existing tanks are set up in accordance with
regulations in force.
- e expansion vessels ensure complete absorption of the dilation of
the uid contained in the system.
- Slurry and build-up have been cleaned out of the system.
3
INSTRUCTIONS FOR
INSTALLATION
3.1 GENERAL RECOMMENDATIONS
ATTENTION!
is boiler must only be employed for its explicitly
intended use. Any other use must be considered
improper and therefore dangerous.
is boiler is used to heat water to below boiling
temperature in atmospheric pressure.
ATTENTION!
e appliances are designed to be installed inside
buildings only in suitable technical compartments,
and also outdoors in a completely open place.
Before connecting the boiler, have professionally
authorised company:
a) Accurately washing all of the pipes in the system
to remove any residues or sediments could stop
the boiler form running eciently, even in terms
of health and hygiene.
b) Making sure the boiler is set up to operate with the
available type of fuel. e type of fuel is stated on the
packaging and technical characteristics plate.
c) Make sure that the chimney/ue has an adequate
draught, that it is not choked, and that there are no
other exhausts for other appliances, unless the ue
is designed for multiple utilities, in accordance with
standard specications and requirements in force.
Only once this check has been carried out can the
tting between boiler and chimney/ue be set up.
ATTENTION!
In rooms with aggressive vapour or dust, the
appliance must operate independently of the air in
the room of installation!
ATTENTION!
e appliance must be installed by an authorised
company possessing professional-technical
qualications in accordance with the law, who, under
his/her own responsibility, enforces the observance of
regulations according to the rules of good practice.
ATTENTION!
Assemble the appliance in observance of the minimum
required distances for installation and maintenance.
e boiler must be connected to a heating system
compatibly with its specications and power.
3.4 Protection de
vices when using a PHE (must be fitted)
(not supplied by Alpha)
1 Safety thermostat: this is designed to stop the boiler if the safety
thermostat installed on the boiler fails to operate correctly. It must
have an IMMOVABLE calibration of < 100°C.
2 Minimum pressure switch: this is designed to stop the boiler if
the minimum operating pressure drops (can be calibrated between
0.5 - 1.7 bar). It must be manually reset.
3 Safety pressure switch: this is designed to stop the boiler if the
maximum operating pressure is reached (can be calibrated between 1 -
5 bar).
3.3 Pressure Relief Valve correctly sized for the installation.
3.5 Control devices when using a PHE (must be fitted)
1 (Pressure gauge -( not supplied by Alpha) with (12) damper pipe
and (11) pressure gauge valve: it indicates the current pressure in
the boiler, 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.
contained in the boiler, it must be graduated in centigrade with a
full scale of no more than 120°C.
2 Spare sockets: approved for the inclusion of control devices.
3
1¼" stub pipes: for the inclusion of safety valves.
4 Flow switch: Not supplied by Alpha this is designed to stop the
boiler in case of low flow inside the primary circuit.
5 Approved expansion vessel: this absorbs the increase in
volume of water in the system following an increase in
temperature. Not supplied by Alpha.
6 Y strainer.
7 Modulating pump (Not included in the kit).
8 Hydraulic separator (Not included in the kit).
9 Automatic air vent. Not supplied by Alpha.
10 Drain cock. Not supplied by Alpha.
ATTENTION!
NEVER CUT OFF SAFETY DEVICES FROM THE
BOILER, such as the safety valve and expansion vessel.
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