Figure 20 Venting and air piping — DIRECT VENT ONLY/04)/.3AND0)0).',)-)43
The table below lists the acceptable vent/air pipe terminations described in this manual. Follow all instructions provided to install the
vent/air system.
./43(/7. below, but also approved, are the polypropylene piping and terminations listed in
Figure 21, page 19
.
&ORTHESEAPPLICATIONSUSE/.,9THEMANUFACTURERSPARTSLISTEDANDFOLLOWALLINSTRUCTIONSPROVIDEDBYTHEPIPEMANUFACTURER
Part number 550-142-850/0716
18
FreeStyle
®
WALL MOUNT GAS-FIRED WATER BOILER — Boiler Manual
6 Venting/air piping — general continued
FreeStyle® Model
Maximum vent and air pipe length = 100 feet for all applications
(Minimum length for all applications is 2 feet)
!LLAPPLICATIONSINCLUDEALLOWANCEFORTHETERMINATIONlTTINGSPLUSONEELBOWINAIRPIPINGANDONEELBOWINVENTPIPING
USE SWEEP
ELBOWS
ONLY
See Figure 21, page 19 for material specifications | See Figure 153, page 113 for part/kit numbers
Vent and air pipe sizes:
Maximum vent lengths apply for either 2” or 3” vent and air pipe.
If using 2” pipe (FS-80/120 only), provide 3”x 2” reducers at boiler connections and at vent/air cap or at concentric terminations.
Boilers will derate as vent/air pipe length increases —
*
see rating data on Figure 167, page 127 for derate amounts.
SIDEWALL termination VERTICAL termination
Separate pipes
[Note 1]
PVC or PP Concentric
[Note 1]
3” PVC
vent/air cap [Note 1]
Separate pipes
[Note 1]
PVC or PP Concentric
[Note 1]
See page 23 See page 25 See page 24 & 26 See page 27 See page 29
Size,
inches
Materials
Fig. 21, page 19
Size,
inches
Materials
Fig. 21, page 19
Size,
inches
Materials
Fig. 21, page 19
Size,
inches
Materials
Fig. 21, page 19
Size,
inches
Materials
Fig. 21, page 19
FS-80
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
FS-120
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
2
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
FS-155
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
!LLELBOWSINVENTANDAIRPIPINGMUSTBESWEEPELBOWS/.,9$/./4USESHORTRADIUSELBOWS
Equivalent feet for elbows (USE SWEEP ELBOWS ONLY) —
deduct from max equivalent length of piping (does not apply to termination fittings)
tGFFUQFSGPSFBDIBEEJUJPOBM¡TXFFQFMCPXPS¡FMCPX
*GQJQJOHDPOUBJOTNPSFUIBOFMCPXJOBJSPSWFOUQJQJOHPUIFSUIBOUFSNJOBUJPOmUUJOHT
Note 1:
.BUFSJBMBCCSFWJBUJPOT11QPMZQSPQZMFOF44"-$TUBJOMFTTTUFFM
If using stainless pipe, provide adapters for terminations, if required
*1&9w17$DPODFOUSJDWFOULJUTDBOCFVTFEXJUITUBOEBSE17$QJQFmUUJOHTBOEDFNFOU"/4*"45.%FYDFQUJG6-$4
DPNQMJBODFJTSFRVJSFE'PS6-$4DPNQMJBODFBMMQJQFmUUJOHTBOEDFNFOUNVTUCF*1&94ZTUFN*GVTJOH*1&9LJUTVTF
POMZ*1&9QSPEVDUDPEFGPSwWFOUJOH