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en
I
NSTALLATION
en-20
Warning:
w
The unit must be connected in accordance
with the applicable local requirements.
Caution:
c
For emergency situations and maintenance, it must
be possible to render the entire system electrically
dead.
Every unit has an isolation switch in order to render
the unit electrically dead in the event of emergency
situations and for maintenance.
Note:
n
The circuit breaker (if modified) must be at least
type B.
To prevent rapid disconnection, type K is recom-
mended preferably with 300 mA.
Warning:
w
However, do make sure to switch the mains
supply off if you are going to conduct
maintenance on or repair electrical
components.
Note:
n
Do not turn the unit on and off at the power supply.
Use the control panel or the building management
system for that.
2.9.2 Connecting the unit
Make sure that there is a power socket (earthed) available at
no more than 1.5 m of the electronics module.
Note:
n
The power socket must remain accessible after
installation so that the unit can be disconnected for
service and maintenance.
Warning:
w
Do NOT insert the plug into the power socket
yet.
H
EAT RECOVERY UNIT
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