I
NTRODUCTION
H
EAT
RECOVERY
UNIT
en-12
en
1.5
Safety instructions
1.5.1 Safety in use
Warning:
w
Do not put any objects into the inlets and
outlets.
Warning:
w
Do not obstruct the unit’s inlets or outlets.
Warning:
w
The upper surface of the unit becomes hot
during operation.
Caution:
c
In exceptional situations, water may run out of the
unit. Therefore, do not place anything under the unit
that could be damaged as a result.
1.5.2 Safety issues relating to installation, mainte-
nance and servicing
Danger:
d
The unit may only be opened by qualified
technical staff.
Warning:
w
Perform the following actions before opening
the unit:
1. Switch the unit off,.
2. Allow the unit to cool down.
Caution:
c
The heat exchanger or, as the case may be, the
heating elements, can get very hot.
