Unical INOXIA GJ Series, Руководство по установке и обслуживанию

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17
Instructions for the installer
3.11 - FILLING THE SYSTEM
Warning!
Do not mix the CH system’s water with
unsuitable antifreeze products or use
wrong concentrations of anti-corrosion
solutions ! This could cause damage to the
washers and could provoke noise during
normal boiler operation.
UNICAL refuses all liability for injury to
persons, animals or damage to property
deriving from not having respected the
above mentioned recommendations.
After completing all the system’s service connections the
circuits may be filled by carefully following out the following
phases:
- open the radiator’s air vents and check that the automatic
air vent in the boiler is working properly.
- gradually open the appropriate filling cock and check that
the automatic air vents fitted onto the system are working
properly.
- close the radiator’s air vents as soon as water begins to flow
out.
- using the pressure gauge check that the pressure reaches
the value of 1 bar.
- close the filling cock and then bleed off the air once again
through the radiator’s air vents.
- check all the connections for soundness.
- after having fired the boiler and the system has reached the
correct temperature , stop the pump and repeat the air
bleeding operations.
- let the system cool down and, if necessary, re-establish the
water pressure to1 bar.
NOTE:
The minimum low water pressure switch
will not give the electrical impulse to fire the
burner if the pressure is lower then 1 bar.
use the filling cock on the boiler to adjust the
pressure.
This operation must be carried out when the
system is cold.
NOTE!
If the boiler has not been fired for a long
period the pump could be jammed. Before
firing the boiler,
it is important to carry out the following un-
jamming operation:
- place a cloth underneath the pump
- remove the pump vent plug positioned in
the centre of the pump
- using a screwdriver, rotate the shaft in a
clockwise direction.
Once this operation has been concluded,
screw back the pump vent plug and check
that there have been no water leaks.
WARNING!
After removing the pump vent plug some
slight water leakage could occur.
Before replacing the front panel dry all the
wet surfaces.
3.12 - GAS CONNECTION
DANGER!
The gas connection must be carried out
only by a qualified engineer who will have
to respect and comply to the regulations in
force and to the requirements indicated by
the local gas supplier.
An incorrect installation could cause injury
to persons, animals or damage to property.
The manufacturer shall not be held liable
for any injury and/or damage.
Before installing the boiler it is
recommended to thoroughly clean all the
fuel feed pipework in order to remove
any eventual residual grime which
could compromise the boilers correct
functioning.
Warning!
Be sure to make a connection pipes without
stress mechanics points to avoid the danger
of loss!
If you smell gas:
a. Do not turn on or off electrical switches,
use the telephone or any other object
which can provoke sparks;
b. Open all doors and windows in order to
allow fresh air to enter and purify the room;
c. Close all gas cocks;
d. Contact a service engineer, qualified
installer or the gas supply company.
As a safety measure against gas
leaks, Unical recommends installing
a surveillance and protective system
composed of a gas leakage detector
combined with an on-off solenoid valve
fitted on the gas supply line.
The gas supply pipe must have an appropriate section to the
burner capacity.
The gas supply pipe must have a section which is identical or
greater then the one used on the boiler and must assure
a correct gas pressure.
It is however important to comply with the “General installation
standards” indicated in the standards UNI 7129, UNI 7131
and UNI 1137-1.
Before commissioning an internal gas distribution system and
therefore before connecting it to the gas meter, the complete
installation must be tested for gas soundness.
If any part of the system is concealed from view the gas
soundness test must be carried out before covering the pipes.
Before connecting the pipework the system must be tested
with air or inert gas at a pressure of at least 100mbar.