Ariston STI 125 INDIRECT Handbuch für Installation und Gebrauch - Seite 12
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calculate the next largest size.
Maximum resistance allowed for a straight length of 28mm pipe (D2) from G
1
/
2
temperature & pressure valve equates to: 18m. Subtract the resistance for 4 no.
28mm elbow at 1.0m each = 4m. Therefore the maximum permitted length
equates to: 14m
As the actual length is 7m, a 28mm (D2) copper pipe will be satisfactory.
WARNINGS
The outlet from the temperature & pressure relief valve must not be used for
any other purpose. This also applies to the expansion relief valve. No other
valve is to be fitted between the cold water combination valve and the
cylinder.
The temperature & pressure relief valve must not be removed in any
circumstances. Any of the above will totally invalidate the guarantee.
The electrical installation must be in accordance with the current I.E.E.
2.12 E
LECTRICAL
wiring regulations.
C
ONNECTION
PROTECH ELECTRONIC ANTI-CORROSION SYSTEM
I
: The ProTech anti-corrosion system MUST be permanently
MPORTANT
connected to a 240V electricity supply see F
2.10.
IG
Anode circuit
L
1
N
Electronic anode
F
. 2.10
240V~
IG
The ProTech system, an exclusive solution, is an electronic anti-corrosion
protection system which ensures maximum longevity of the appliance,
regardless of water quality. The electronic circuit creates a difference in
potential between the hot water tank and the titanium electrode, thereby
guaranteeing optimum protection of the tank and preventing corrosion.
To ensure the proper operation of the protection system, IT MUST BE
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PERMANENTLY CONNECTED TO A FUSED NON-SWITCHED 240V, 3A
ELECTRICITY SUPPLY even in the event of shut-down of the system. To
12