Lamborghini Caloreclima GASTER N 51 AW Instrucciones De Uso, Instalación Y Mantenimiento página 70

Any additional sensitive elements of the system's con-
trol and safety devices, temperature sensor, pressure
switch, thermostat bulb, etc., must be located on the
delivery pipe within 40 cm. of the rear wall of the boiler
casing (see Fig. 7).
2.6 Connection to the flue
The diameter of the flue connection pipe must not be less than that of the connection on the anti-back-
flow device. Starting from the anti-backflow device it must have a vertical section at least 50 cm long.
Current standards must be complied with regarding the dimensioning and installation of the flues and
connection pipe.
The diameters of the anti-backflow device collars are given in the table of Fig. 2.
2.7 Installing module generators
INSTALLATION MUST ONLY BE PERFORMED BY QUALIFIED PERSONNEL, IN ACCORDANCE WITH
ALL THE INSTRUCTIONS GIVEN IN THIS TECHNICAL MANUAL, THE PROVISIONS OF CURRENT LAW,
THE PRESCRIPTIONS OF UNI AND CEI STANDARDS, ANY LOCAL REGULATIONS AND THE RULES
OF PROPER WORKMANSHIP.
General Warnings
It is advisable to install on-off valves between the boiler (module) and the system allowing the boiler
to be isolated from the system if necessary. In this case each boiler must be fitted with a safety valve
operating on the delivery pipe.
If the delivery and return pipes follow a path where air pockets could form in certain places, it is advis-
able to install vent valves at these points.
The heating water temperature drop, the difference between the system delivery and return temperature,
must be lower than 20°C. To prevent condensation in the boiler and the associated damage.
Evacuate the products of combustion by means of a flue, whose cross-section must conform to current
standards and anyhow be no less than that of the coupling to the module generator fume manifold. If
it is wished to use manifolds to discharge the fumes, see the charts of Fig. 8 and 9.
All the couplings between the boiler and the flue must be airtight.
The capacity of the gas meter must be sufficient for the simultaneous use of all the generators con-
nected to it.
Make the various boiler connections in such a way that their pipes are free of mechanical stress.
Make the gas connections of the single generators in accordance with current regulations.
70
cod. 3540P900 - Rev. 01 - 03/2018
GASTER N 51 ÷ 102 AW
System delivery
40 cm max.
System return
fig. 7