Ariston NUOS FSi 250 Instrukcje dotyczące instalacji i serwisowania - Strona 29
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Sensor (S3)
Shares pocket
with overheat stat
Sensor (S2)
Fitted to Electric
Heater Flange
F
. 6.11
NUOS FSi 250 O
IG
B
in the event of the stored water going over temperature, the heat input to
the cylinder is isolated by physical means and is non self resetting. These
systems should be clearly identified with reference to the approvals body.
(See Note 2)
Note 1 :Whilst most solar cylinders use a coil type heat exchanger
other options such as external plate to plate devices , external annulars
or 'tank in tank' systems may be used but the same control options always
apply.
Note 2 :Current approved bodies include the British Board of Agreement
(BBA) , WRc-NSF Limited, or KIWA
NUOS
Sensors
FSi 250
from
Solar
Controller
S
W
(
VERHEAT
TAT
IRING
TYPICAL
Switched Live,
Neutral and Earth
from
Solar Controller
NUOS FSi 250
Manual Reset
Overheat
Stat NC
brown
blue
g/y
)
Solar
Pump
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