Weil-McLain ULTRA299-S4 Manual page 28

S 4
®
ERIES
Install condensate line
Condensate drain tubing
1. Connect condensate drain tubing to the ½" PVC tee and run to
fl oor drain or condensate pump (see Figure 32 ). 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
certifi ed PVC or CPVC pipe, fi ttings and cement.
2. Leave the top of the ½" tee OPEN. This is needed as a vacuum
break.
3. When installing a condensate pump, select one approved for use
with condensing boilers and furnaces. The pump should have an
overfl ow switch to prevent property damage from condensate
spillage. See Figure 29 for required fl ow capacity.
4. When sizing condensate pumps, make sure to include the total
load of all Ultra boilers connected to it.
The condensate line must remain unobstructed, allow-
ing free fl 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 fi lter if required by local codes. See
Replacement parts section at the end of this manual
for the Weil-McLain kit.
Suggested condensate pump capacity, GPH
Minimum recommended condensate pump
Boiler
Ultra-80 2
Ultra-105 3
Ultra-155 4
28
-
GAS FIRED WATER BOILER
capacity, per boiler, GPH
Ultra-230
Ultra-299/310
Ultra-399
— Boiler Manual
(continued)
Condensate drain — Ultra-155 & -230 (PVC
tee installation shown applies to all models)
Condensate drain — Ultra-299/310 & -399
Condensate pump (by others), typical
6
8
8
Part number 550-100-400/0717