Roberts Gorden GordonRay BH-175 - Manual (Page 32)

ROBERTS GORDON ® BH- S ERI E S S UBM IT TAL S HE E T
© 2004 Roberts-Gordon BEFORE IN ST AL LATI ON AND OPER ATI ON OF HEATI NG E QUIPMENT, READ AND U NDERSTAND T HE INSTALL AT ION, OPERATIO N AND SERVICE MANUAL .
APPL ICATION S, ENGI NEE RING AND DET AI LE D GUID ANCE ON SYST EMS DE SIGN, INSTAL LATI ON AND PRODUCT PE RFORMANCE IS AVAI LABLE UPON RE QUEST. ROBERT S GORDON
® PRODUCT S ARE T O BE
INSTAL LE D ONL Y IN ACCORDANCE WI TH L OCAL L AWS, CODES AND REGUL AT IONS, AND ONLY BY A CONT RACT OR QUALI FIE D I N THE I NST ALL AT ION AND SE RVICE OF GAS-FIRE D HE AT ING EQUI PME NT.
Common Vertical Venting
Roof
18" (46 cm)
Min.
Type "B" vent cap
(7" or 8" may be used.
These are not available
from Roberts Gordon.)
Roof
Flashing
Approved
Thimble
(if applicable)
Type "B" vent pipe
4" (10 cm)
Single Wall Pipe
Vent Adapter
4" (10 cm)
Single Wall Pipe
Vent Adapter
“D” Area must equal sum
of open area of
individual vents.
“D”
Single Wall Pipe
The last section of vent pipe
passing through the roof or
wall may be Type "B" vent pipe.
All other vent materials in the
building must be single wall
vent pipe.
Top View