4
Heat Recovery unit CWL-300(B) / CWL-400(B) with option PCB
1
Switch off the appliance on the control panel (simulta-
neously press keys "
OK
” and “
-
“ for 3 seconds) and switch
off the power supply.
2SHQWKH¿OWHUGRRU
5HPRYHWKH¿OWHUV
5HPRYHWKHIURQWFRYHU
4
If the appliance is equipped with the optional bypass unit,
LWPXVWQRZEHUHPRYHG
)LUVWUHPRYHWKHGLVSOD\VHHLWHPIRUDSSOLDQFHZLWKRXW
bypass unit) and unscrew the four hexagon socket bolts
0[SXOORXWWKHFRQQHFWRUVDQGUHPRYHWKHE\SDVV
unit from the appliance.
5HPRYHWKHFRQWUROSDQHO
5HPRYHWKHKHDWH[FKDQJHU%HFDUHIXOQRWWRGDPDJHWKH
foam parts in the appliance.
Chapter 2
Assembly option PCB
5388-A
5418-0
2.1 Assembly option pcb by installer
Only for CWL-appliance equipped with the
optional bypass unit!
without bypass unit
with bypass unit
without bypass unit
with bypass unit