Install Instructions

Part number 550-100-131/0715
– 48 –
™
GAS-FIRED WATER BOILER — 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 59, page 48). 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 58 for required flow capacity.
4. When sizing condensate pumps, make sure to
include the total load of all Evergreen
TM
boilers
connected 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 Replacement
parts section at the end of this manual for
the Weil-McLain kit.
"OILER
-INIMUMRECOMMENDED
CONDENSATEPUMP
CAPACITYPERBOILER
'0(
EVG 220 6
EVG 299/300 8
EVG 399 10
&IGURE Suggested condensate pump
capacity, GPH
&IGURE Condensate pump (by others), typical