Preface
4
Preface
Please read the instructions carefully before in-
stalling and using for the first time. Follow the in-
structions. Pass these instructions on to the
owner for safekeeping.
Overview of UPG system
ER-UP/G with plastic shutter without fire pro-
tection equipment
1 Plastic backflow preventer
(Fig. of installation position with air outlet dir-
ection to the right)
2 Plastic exhaust socket