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INSTRUCTION MANUAL
AFRISO Sp. z o.o.
Szałsza, ul. Kościelna 7
42-677 Czekanów
www.afriso.pl
CAUTION!
This instruction manual is also available on www.afriso.pl, in the "Online Catalogue" and "Downloads"
tabs.
WARNING!
Danger of scalding by hot system water.
During installation, commissioning and maintenance of safety valves, all possible
measures must be taken to prevent scalding by hot water.
APPLICATION
AF4 and AF8 safety valves are designed to work with electric domestic hot water heaters with a maxi-
mum temperature of 95°C and nominal pressure of 6 bar, as a safety element.
CONSTRUCTION OF THE VALVE
The valve is composed of:
A.
Safety valve – opens the outflow of water outside the system when the heater pressure exceeds
the nominal pressure of the valve.
B.
Non-return valve – limits the outflow of water from the heater to the general supply system in the
event of a loss of pressure in the supply system. The valve fully opens when the water pressure in
the supply system is at least 0.2 bar higher than the pressure in the heater.
C.
Relief valve – opens the outflow of water from the heater to the heater's supply system when
the pressure in the heater exceeds the supply pressure by 0.9 ±0.4 bar. Thanks to this the pressu-
re in the heater is lowered, after increasing along with the temperature when there is no water
consumption.
The valve is not designed to drain water from the heater! Leaking impurities may damage the valve,
which may result in a hazard to the environment and the user.
TECHNICAL DATA
Parameter
Safety valve nominal pressure
Working temperature
Body material
Connections
Nominal size
Smallest diameter of safety valve outflow passage (d)
Power output of the water heater
Customer Service Team
phone 32 330 33 55
fax 32 330 33 51
zok@afriso.pl
AF4 and AF8 safety valve
with non-return valve
Art.-Nr 42 212 10, 42 234 10
Value / material
6.7 ±0.3 bar
max 95°C
CW617N brass
AF4: G1/2" x Rp1/2"
AF8: G3/4" x Rp3/4"
AF4: DN15
AF8: DN20
AF4: 6 mm
AF8: 8 mm
AF4: max 4 kW
AF8: max 10 kW
953.001.0106
1
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Summary of Contents for AFRISO AF4
- Page 1 APPLICATION AF4 and AF8 safety valves are designed to work with electric domestic hot water heaters with a maxi- mum temperature of 95°C and nominal pressure of 6 bar, as a safety element.
- Page 2 Dispose of the product according to local directives and guidelines. WARRANTY The manufacturer’s warranty for this product is 36 months after the date of sale from AFRISO Sp. z o.o. In case of any alteration of the product or usage against this instruction manual, the warranty becomes void.
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