14
2 Install VTO
Unit VTO on-site installation includes: wall embedded installation, door embedded
installation (with box/without box), standalone installation.
This
chapter
will
introduce
installation
of
VTO1220A/VTO1210A-X
series,
VTO1210B(W)-X/VTO1220B(W) series and VTO1210C-X series.
2.1 VTO1220A/VTO1210A-X
2.1.1 Screw
Component
Screw No
Illustration
Quantity
ST3×18 Cross recessed pan head
tapping screws
–white alloy
Screw a
6
M3×16 Cross slot recessed pan head
screws- zinc black
Screw b
1
White expansion pipe
￠
6×30mm
None
6
2.1.2 Installation Steps
Step 1. Fix metal housing on wall with screw a.
Step 2. Fix device on the metal housing with screw b.
