IBC Technologies Inc.
9
VFC 15-150 and VFC 45-225
1.4.1.3
Condensate Trap
A condensate trap must be installed near the
base of the boiler as shown in Figures 2. The
trap itself is formed using PVC pipe, elbows
and threaded union fittings. Note: for higher
temperature CPVC vent systems, the
connecting tee and bushing should be
formed using CPVC, transitioning to PVC in
the wetted section of the trap, where non-
ULC-S636
materials are allowed as this
section is not in contact with flue products.
The trap must be installed as follows:
•
For the 15-150 model, must be 7”min in
height (see
Fig. 2
.); with the
conventional vent kit parts supplied with
the boiler, approximately 14” clearance
below the boiler is required. To achieve
the stated 12” minimum clearance, it is
necessary to use a threaded 90° elbow
adaptor. For the 45-225 model, the trap
shall have an effective minimum depth
of 28” (this can achieved using a
conventional drop as shown below or a
ball trap assembly of similar properties).
•
Must be piped to within 1” of a drain or
be connected to a condensate pump.
•
Drainage line must slope down to the
drain at a pitch of ¼” per foot so
condensate runs towards the trap
•
Use the supplied vent kit parts to
establish the trap in the location shown
below.
It is preferable not to place the
drain connection tee directly at the base
of the boiler.
•
If necessary, the drain connection tee
can be laid so the main axis is
horizontal; ensure the drain tee is as
close as possible to the vent riser to
avoid water bypass and pooling.
•
Most installers prefer to run the
combustion air intake pipe alongside the
vent, both to the left side of the boiler to
keep the area right of the unit clear for
system water piping.
Fill trap with water before boiler is first
fired to prevent exhaust fumes from
entering room. Never operate the boiler
unless the trap is filled with water.
•
Use the supplied PVC union for easy
access for cleaning. Locate at base of
trap as shown.
•
Trap should be checked every 12
months. Clean and refill as necessary
If condensates are to be drained into
ferrous or copper building drain piping,
a neutralization package must be used.
Figure 2. Condensate Trap Configuration