Part number 550-100-131/0120
– 50 –
®
gas
-
fired
water
boiler
— 220/299/300/399
Boiler Manual
Install condensate line
(continued)
Condensate drain tubing
1. Connect condensate drain tubing to the ½” PVC
tee and run to floor drain or condensate pump (see
Figure 62, page 50). Use ½” PVC or CPVC pipe; or
5/8” I. D. tubing (Installer supplied).
Use materials approved by the author-
ity having jurisdiction. In the absence
of other authority, PVC and CPVC pipe
must comply with ASTM D1785, F441 or
D2665. Cement and primer must comply
with ASTM D2564, F656, or F493. For
Canada, use CSA or ULC certified PVC
or CPVC pipe, fittings and cement.
2. Leave the top of the ½” tee OPEN. This is needed as
a vacuum break. Do not install any pipe or fitting
into top of tee.
Nothing is to be added to top of this tee.
3. When installing a condensate pump, select one
approved for use with condensing boilers and fur-
naces. The pump should have an overflow switch to
prevent property damage from condensate spillage.
See Figure 61 for required flow capacity.
4. When sizing condensate pumps, make sure to
include the total load of all
Evergreen
®
boilers con-
nected to it.
The condensate line must remain unob-
structed, allowing free flow of condensate.
If condensate is allowed to freeze in the
line or if the line is obstructed in any
other manor, condensate can exit from
the boiler tee, resulting in potential water
damage to property.
Condensate from the
Evergreen
®
boiler
will be slightly acidic (typically with a
pH from 3.2 to 4.5). Install a neutralizing
filter if required by local codes. See Re-
placement parts section at the end of this
manual for the Weil-McLain kit.
Boiler
Minimum recommended
condensate pump
capacity, per boiler,
GPH
EVG 220
6
EVG 299/300
8
EVG 399
10
Figure 61
Suggested condensate pump
capacity, GPH
Figure 62
Condensate pump (by others), typical
