Biddle HR 25 - Page 28

INSTALLATION HEAT RECOVERY UNIT
en-28
en
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.
Caution:
c Do not turn the unit on and off at the power supply.
Use the control panel of the building management
system for that.
2.12.2 Connecting the unit
Warning:
w Make sure that the mains supply is switched
off.
1. Bring the mains power cable to the unit.
2. Feed the cable into the electronics module.
3. Connect the cable on terminal X0 1, in accordan
ce with
the wiring diagram
.
Caution:
c Do not switch on the mains supply yet.
See also:
2.12.1 "Special points regarding the mains supply" on page 27