Installation / Operation Instruction Manual

Table Of Contents
Page 34
SECTION 6 Condensate Drain Trap
This appliance creates condensation, as a by-product
of high combustion e󰀩ciency. The condensate must
be drained from unit and from the vent system.
A combination condensate drain/trap is included the
unit, for on-site assembly. See Figure 2 on page
10 This is used to drain the condensate from the
heat exchanger of the unit. This condensate drain
trap must be installed to prevent the accumulation of
condensate. Connect a ¾” PVC pipe between the
drain connection and a oor drain. The PVC pipe must
continuously slope downward toward the drain, with no
spiraling. If there is no accessible oor drain, or if the
drain pipe cannot be installed with the proper slope,
a condensate pump will be needed to ensure that
condensate is removed.
The condensate that forms in the vent pipe should also
be drained to help prevent excessive condensate from
entering the unit at the vent. The vent condensate is
typically drained a drain tee located in the rst section
of vent pipe, as this should be the lowest section of the
vent pipe.
Consult local codes for direction on disposal of
condensate. In some cases (code requirements or
drain material), condensate will need to be neutralized.
A condensate neutralizer is not included with the
unit, but is available from Laars as an accessory. If a
neutralizer is required, it is helpful to install the boiler or
water heater on a raised 4” concrete platform. This will
generally allow su󰀩cient elevation for the condensate
neutralizer to be installed below the condensate trap.
See Figure 15.
If the unit is installed outdoors in a location that
may experience freezing temperatures, precautions
must be taken to prevent condensate from freezing.
Damage due to freezing condensate is not covered by
the warranty.
Figure 15. Raised Concrete Platform
Neutralizer kit is
not included.
CAUTION
Condensate is mildly acidic (pH=5) and may harm
some oor drains and/or pipes, particularly those
that are metal. Ensure that the drain, drainpipe,
and anything that will come in contact with the
condensate can withstand the acidity, or neutralize
the condensate before disposal. Damage caused
by failure to install a neutralizer kit or to
adequately treat condensate will not be the
manufacturers responsibility.