Install Instructions

Venting & air — general (continued)
&IGURE Evergreen
™
venting and air piping — DIRECT VENT ONLY — OPTIONS and PIPING LIMITS
The table below lists the acceptable vent/air pipe terminations described in this manual. Follow all instructions provided to install the
vent/air system. ./43(/7. below, but also approved, are the polypropylene piping and terminations listed in Figure 21, page 19.
For these applications, use ONLY the manufacturers’ parts listed and follow all instructions provided by the pipe manufacturer.
Part number 550-100-131/0715
– 18 –
™
GAS-FIRED WATER BOILER — Boiler Manual
Evergreen Model
Maximum vent and air pipe length = 100 feet for all applications
(Minimum length for all applications is 2 feet equivalent plus termination)
(All applications include allowance for the termination fittings plus one elbow in air piping and one elbow in vent piping).
USE SWEEP
ELBOWS
ONLY
See Figure 21, page 19 for material specifications | See Figure 108, page 115 for part/kit numbers
Vent and air pipe sizes:
Maximum vent lengths apply for either 3” or 4” vent and air pipe.
If using 3” pipe, provide 4”x 3” tapered reducers at boiler connections and at Weil-McLain vent/air cap or at concentric terminations.
Boilers will derate as vent/air pipe length increases — see rating data on Figure 120, page 127 for derate amounts.
SIDEWALL termination VERTICAL termination
Weil-McLain
vent/air plate [Note
1 & 2]
Separate pipes
[Note 1]
PVC or PP Concen-
tric
[Note 1 & 2]
Separate pipes
[Note 1]
PVC or PP Concen-
tric
[Note 1 & 2]
Vertical vent/
Sidewall air
[Note 1]
See page 25 See page 23 See page 27 See page 29 See page 31 See page 31
Size,
inches
Materials
page 19
Size,
inches
Materials
page 19
Size,
inches
Materials
page 19
Size,
inches
Materials
page 19
Size,
inches
Materials
page 19
Size,
inches
Materials
page 19
220
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
3
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
299/300
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
399
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
4
PVC/PVC-DWV
CPVC, PP, SS
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Equivalent feet for elbows (USE SWEEP ELBOWS ONLY) —
deduct from max equivalent length of piping (does not apply to termination fittings)
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Note 1
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6-$4DPNQMJBODFBMMQJQFmUUJOHTBOEDFNFOUNVTUCF*1&94ZTUFN*GVTJOH*1&9LJUTVTFPOMZ*1&9QSPEVDUDPEFMJTUFEJO
'JHVSFQBHF.
$POUBDU8FJM.D-BJOGPSPSEFSJOHJOGPSNBUJPOBOEBWBJMBCJMJUZPG8FJM.D-BJOWFOUJOHLJUT
Note 2
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