Bryant BW9 - Concentric Vent Installation

8. While cement is still wet, insert pipe into socket with a 1/4 turn twist. Be sure pipe is fully inserted into fitting socket.
9. Wipe excess cement from joint. A continuous bead of cement will be visible around perimeter of a properly made joint.
10. Handle pipe joint carefully until cement sets.
11. Support combustion air and vent piping a minimum of every 5 ft using pre-formed metal hanging straps. Do not rigidly support pipes. Allow
movement due to expansion and contraction.
12. Slope combustion air and vent pipes toward boiler a minimum of 1/4-in. per linear foot with no sags between hangers.
13. Use appropriate methods to seal openings where vent and combustion air pipes pass through roof or side wall.
PROCEDURE 5—CONCENTRIC VENT INSTALLATION
NOTE: If these instructions differ from those packaged with termination kit, follow kit instructions.
Combustion-air and vent pipes must terminate outside structure. A factory accessory termination kit must be installed in one of the installations
shown in Fig. 10 or Fig. 11. Four termination kits are available.
1. The 2-in. termination bracket kit is for 1-in., 1-1/2-in., and 2-in. diameter 2–pipe termination systems (50,000 and 75,000 Btuh boilers).
2. The 3-in. termination bracket kit is for 2-1/2-in., 3-in., and 4-in. diameter 2–pipe termination systems (50,000, 75,000, and 100,000 Btuh
boilers).
Fig. 6—Relief Valve Discharge Piping
A99160
RELIEF VALVE
DISCHARGE
PIPING
Fig. 7—Diaphragm Type Expansion Tank Piping
A99161
MANUAL FILL
VALVE
COMBINATION QUICK FILL
VALVE, STRAINER, CHECK
VALVE AND PRESSURE
REDUCING VALVE
COLD WATER
FILL
DIAPHRAGM TYPE
EXPANSION TANK
AUTOMATIC AIR
VENT*
3/4” X 1/8” BUSHING*
3/4” TEE*
3/4” NIPPLE (FURNISHED
AND INSTALLED ON
PACKAGED BOILER)
3/4” STREET ELL*
*
- FURNISHED IN
PARTS BAG
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