Ariston NSGA 500 Instructions Pour L'installation Et L'entretien page 45

1.10 HYDRAULIC DIAGRAM
A. Gas supply
B. Gas inlet valve
C. Gas fi lter
D. Hot water delivery
E. Dielectric insulating fi tting
F. Air relief valve
G. Safety valve
H. Recirculation circuit
I. Recirculation pump
J. Non-return valve
K. Cold water valve
L. Cold water fi lter
M. Cold water supply
N. Safety valve drain
O. Drainage valve
P. Discharge water expulsion device
R. Flue condensate water expulsion
Important note: most of the devices appearing in this installation diagram are not
supplied by the water heater manufacturer. Nonetheless, the installer is responsible
for their use and correct installation, in accordance with the regulations in force.
GB
45