Ultra Boiler Manual
Part number 550-100-440/0122
28
(continued)
Figure 30 Condensate drain — Ultra-155 & -230 (PVC tee
installation shown applies to all models)
Figure 31 Condensate drain — Ultra-299 & -399
Figure 32 Condensate pump (by others), typical
1. Connect condensate drain tubing to the ½” PVC tee and run to
oor drain or condensate pump (see Figure32). Use ½” PVC or
CPVC pipe; or 5/8” I. D. tubing.
Use materials approved by the authority having juris-
diction. 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
certied PVC or CPVC pipe, ttings and cement.
2. Leave the top of the ½” tee OPEN. is is needed as a vacuum
break.
3. When installing a condensate pump, select one approved for use
with condensing boilers and furnaces. e pump should have an
overow switch to prevent property damage from condensate
spillage. See Figure29 for required ow capacity.
4. When sizing condensate pumps, make sure to include the total
load of all Ultra boilers connected to it.
e condensate line must remain unobstructed, allow-
ing free ow 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 lter if required by local codes. See
Replacement parts section at the end of this manual
for the Weil-McLain kit.
Figure 29 Suggested condensate pump capacity, GPH
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