12 Appendix
12.4
Optional electrical connections
Fig.51
Open housing for extension PCBs
1
2
72
12.4.1
If there is no space in the boiler's instrument box to install an (optional)
extension PCB, install the PCB in the electronics extension box This is
available as an accessory.
1. Unclip the housing cover.
2. Remove the cover.
x3
3. Install the extension PCB in accordance with the instructions supplied.
AD-4000062-01
Electronics extension box for extension PCBs
7684359 - v.06 - 10012019