Hydraulic Connection - Joannes ARN H 80 Notice Technique

HYDRAULIC CONNECTION

HOT wATER HEATING SySTEM wITH CLOSED ExPANSION VESSEL
Furnace output ≤ 300.000 kcal/h - pressure 5 bar
The generator must be provided with:
a Safety valve
b Expansion vessel
(connected with a hose ≥ 18 mm diameter)
c Regulation thermostats
d Safety thermostat
e Cut-off pressure switch
f
Well for control thermometer
g Pressure gauge with flange for control
pressure gauge
h Heat discharge valve or fuel on-off valve
N1 Flow
N2 Return
N3 Instrument fitting
N4 Lower fitting:
N4B expansion vessel fitting
N4C filling/drain
N6 Bulb wells (thermometer, pump consent thermostat,
regulation thermostat, safety thermostat).
HOT wATER HEATING SySTEM wITH CLOSED ExPANSION VESSEL
Furnace output > 300.000 kcal/h - pressure 5 bar
The generator must be provided with:
a 1 safety valve
2 safety valves if output is > 500.000 kcal/h
b Expansion vessel
c Regulation thermostats
d 1st safety thermostat
e 2nd safety thermostat
f
Cut-off pressure switch
g Well for control thermometer
h Pressure gauge with flange for control pressure gauge
i
Heat discharge valve or fuel on-off valve
N1 Flow
N2 Return
N3 Instrument fitting
N4 Lower fitting:
N4B expansion vessel fitting
N4C Filling/drain
N5 Safety valves fitting
N6 Pozzetti portabulbi (termometro, termostato di regolazione,
termostato di sicurezza, termostato consenso pompa).
Ensure that the hydraulic pressure measured after the reduction valve on the supply pipe does not exceed the operating
pressure specified on the rating plate of the component (boiler, heater etc.).
- As the water contained in the heating system increases in pressure during operation, ensure that its maximum value does
not exceed the maximum hydraulic pressure specified on the component rating plate (5 bar).
- Ensure that the safety valve outlets of the boiler and hot water tank, if any, have been connected to an exhaust funnel in
order to prevent the valves from flooding the room if they open.
- Ensure that the pipes of the water and heating system are not used as an earth connection for the electrical system as
this can seriously and very rapidly damage the pipes, boiler, heater and radiators.
- Once the heating system has been filled, you are advised to close the supply cock and keep it closed so that any leaks
from the system will be identified by a drop in hydraulic pressure indicated on the system pressure gauge.
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INSTALLER