Specifications

Part number 550-100-090/0809
g a s -f i r e d w a t e r b o i l e r — Boiler Manual
24
Condensate drain tubing
Connect condensate drain tubing to the ½” PVC tee and run to 1.
floor drain or condensate pump (see Figure 30). Use ½” PVC or
CPVC pipe; or 5/8” I.D. tubing.
Use materials approved by the authority having jurisdic-
tion. 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
or F493. For Canada, use CSA or ULC certified PVC or
CPVC pipe, fittings and cement.
Leave the top of the ½” tee OPEN. This is needed as a vacuum 2.
break.
When installing a condensate pump, select one approved for use 3.
with condensing boilers and furnaces. The pump should have an
overflow switch to prevent property damage from condensate
spillage. See Figure 27 for required flow capacity.
When sizing condensate pumps, make sure to include the total 4.
load of all Ultra boilers connected to it.
The condensate line must remain unobstructed, allow-
ing 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 Ultra 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.
Suggested condensate pump capacity, GPHFigure 27
Boiler
Minimum recommended condensate pump
capacity, per boiler, GPH
Ultra-80 2 Ultra-230 6
Ultra-105 3 Ultra-299 8
Ultra-155 4 Ultra-399 8
Install condensate line (continued)
Figure 28 Condensate drain — Ultra-155 & -230 (PVC
tee installation shown applies to all models))
Figure 29 Condensate drain — Ultra-299 & -399
Condensate pump (by others), typicalFigure 30