Greenheck ERCH-20 Installation, Operation And Maintenance Manual page 74

Discharge Installation SP/CSP-B 50-200 Models
1
Insert SP-B box scroll tab into SP-B box
scroll slots.
SP-B
Box Scroll Tabs
SP-B
Box Scroll Slots
TR 6x4 Pin
4 Ceiling Exhaust and Inline Fans
3
OPTIONAL
Align the pins on the TR 6x4 adaptor to the
duct pin hole on the SP-B 6-inch duct. Push
until the adaptor snaps into place.
TR 6x4
(PN 473324)
2
Rotate plastic SP-B duct adapter (PN 474433)
until the two SP-B mounting tabs fully engage
into the two SP-B box mounting slots.
SP-B
Box Mounting Slots
SP-B
6-inch
Plastic Duct
(PN 474433)
SP-B
Box Mounting Tabs
SP-B
Plastic Duct Pin Hole
®