Water Connections; Expansion Vesseli; Nstallation - Ariston NUOS FS 200 Instructions For Installation And Servicing

6.9 W C
ATER ONNECTIONS
NUOS TPR Valve
15mm
NUOS Cold In
Blue Collar
¾” BSP M
Condensate Drain
Connect to appliance using
½” elbow spigot supplied.
Tundish
Pressure
Relief
Discharge
Pipe
F . 6.9 W C
IG A ATER ONNECTIONS
6.10 E V
XPANSION ESSEL
3 3
F . 6.10 E
IG A XPANSION
NUOS Hot Out Red Collar ¾” BSP M
¾”BSP F to ¾”BSP M Dielectric Joint
(supplied) must be fitted to NUOS Hot Out
Pressure
Relief Valve
15mm
22mm
Cylinder Drain Cock
(Must be fitted to cold feed)
S
CHEMATIC
I

NSTALLATION

DO NOT install expansion vessel vertically with connection at the bottom (A).
DO NOT connect via a vertical pipe above the combination valve (B).
DO NOT use flexible hoses (C).
Installing EV incorrectly can cause air to become trapped in the expansion vessel resulting
in potential nuisance vibration through the NUOS and pipework.
3
V I
ESSEL NSTALLATION
Hot Supply
to Taps
Thermostat mixing valve
(not supplied)
MIX
Cold
H C
22mm
Pressure Regulating
Valve set @ 3.5 Bar
Combination Valve
Integrated
Non-return Valve
Expansion Vessel
Hot water at temperatures above 50ºC
running from the taps may immediately
Cold
cause serious burns. Children, the
Supply to
disabled and the elderly run a greater risk
Taps
in this regard. Therefore it is advisable
to use a thermostat mixing valve
connected to the water outlet or where
preferred at the point of use.
B
A
Not to scale
Cold
Supply
WARNING
C
Not to scale
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