m
n
o
Diagram of Frost Control
Maintenance
This device requires no maintenance. Use a non-abrasive cloth
dampened with water to clean the front. If this is not sucient, use
a neutral soap solution.
FrostControl
FrostControl is a non-electric safety or drain valve. If there
is a risk of sub-zero temperatures it automatically drains the
content of the boiler via a drain outlet.
If the system is under excess pressure intermittent pressure
equalisation will automatically take place via the safety valve.
k Rotary switch position “ON”
m
Push button position “CLOSED”
n Push button position “DRAIN”
o Drain outlet (to the outside through the vehicle oor)
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