SPECIAL INFORMATION
Sealed unvented operating mode:
- The appliance is under pressure. 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. Please note that, depending on the
static pressure, you may also need a pressure re-
ducing 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 free
from the risk of frost.
- The safety valve discharge aperture must remain
open to the atmosphere.
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OPERATION
1.
General information
The chapter "Operation" is intended for appliance users and qual-
ified contractors.
The chapter "Installation" is intended for qualified contractors.
Note
Read these instructions carefully before using the appli-
ance and retain them for future reference.
Pass on the instructions to a new user if required.
1.1
Safety instructions
1.1.1 Structure of safety instructions
KEYWORD Type of risk
!
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
f Steps to prevent the risk are listed.
f
1.1.2 Symbols, type of risk
Symbol
Type of risk
Injury
!
Electrocution
Burns
(burns, scalding)
1.1.3 Keywords
KEYWORD
Meaning
DANGER
Failure to observe this information will result in serious
injury or death.
WARNING
Failure to observe this information may result in serious
injury or death.
CAUTION
Failure to observe this information may result in non-seri-
ous or minor injury.
SH S |
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