CONTENTS
OPERATION
1.
2.
Safety _____________________________________________________3
2.1
Intended use _________________________________________________ 3
2.2
Incorrect use _________________________________________________ 3
2.3
2.4
2.5
Test symbols _________________________________________________ 3
3.
4.
4.1
5.
6.
6.1
6.2
6.3
7.
7.1
7.2
Safety label __________________________________________________ 6
8.
Safety _____________________________________________________6
8.1
8.2
9.
9.1
Transport _____________________________________________________ 6
9.2
Storage ________________________________________________________ 7
9.3
9.4
9.5
10.
Installation _______________________________________________8
10.1
10.2
10.3
Power supply ________________________________________________ 9
11.
11.1
Commissioning ____________________________________________ 10
11.2
12.
13.
13.1
14.
14.1
14.2
14.3
14.4
Valves _______________________________________________________ 11
14.5
15.
15.1
Dimensions _________________________________________________ 12
15.2
Features ____________________________________________________ 13
15.3
Data table ___________________________________________________14
15.4
Spare parts_________________________________________________ 15
15.5
2
|SB 300-400 E
15.6
16.
17.
Warranty ____________________________________________________ 17
SPECIAL INFORMATION
- Observe all applicable national and regional reg-
ulations and instructions during installation.
- The appliance is not approved for outdoor
installation.
- If the appliance is permanently connected to the
power supply, ensure that the appliance can be
separated from the power supply by an isolator
that disconnects all poles with at least 1/8˝/4 mm
contact gap. Contactors, disconnect switches or
circuit breakers can be used for this.
- Observe the safety regulation to prevent contact
with dangerous 'live' currents.
- The appliance is pressurized. During the heat-up
process, expansion water will drip from the safety
valve.
- Regularly activate the safety valve to prevent
it from becoming blocked, e.g. by limescale
deposits.
- Install a type-tested safety valve in the cold water
supply line.
- The maximum pressure in the cold water supply
line must be at least 20 % below the response
pressure the safety valve. If the maximum pres-
sure in the cold water supply line is higher, install
a pressure reducing valve.
- Size the drain so that water can drain off unim-
peded when the safety valve is fully opened.
- Fit the discharge pipe of the safety valve with a
constant downward slope and in a room without
risk of frost.
- The safety valve discharge aperture must remain
open to atmosphere.
- Never set the heat exchanger loop pressure
greater than the potable (domestic) water supply
pressure. If potable water pressure is too low, a
booster pump may be needed to assure that it ex-
ceeds the required heat exchanger loop pressure.
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