LP-517 Rev. 000 Rel. 019 Date 7.21.20
29
Figure 20 - Condensate Piping
NOTES:
1. Condensate line must be pitched at least ¼” per foot to properly
drain. If this cannot be done, or a very long length of condensate
hose is used, increase the condensate line to a minimum of 1” ID and
place a tee in the line before the condensate neutralizer to properly
reduce vacuum lock in the drain line.
2. PVC or CPVC pipe should be the only material used for condensate
line. Steel, brass, copper, and other metals will be subject to corrosion
or deterioration.
3. A frozen condensate line could result in a blocked vent condition.
It is very important to protect the condensate line from freezing
temperatures or any type of blockage. In installations that may
encounter sustained freezing conditions, the use of heat tape
is recommended to avoid freezing of the condensate line. It is
also recommended to bush up the condensate line size to 1” and
terminate condensate discharge as close to the unit as possible.
Longer condensate runs are more prone to freezing. Damages due
to frozen or blocked condensate lines ARE NOT covered by warranty.
4. Support of the condensate line may be necessary to avoid
blockage of the condensate flow.
5. To allow proper drainage on longer horizontal condensate runs,
tubing size may need to increase to 1” and a second line vent may
be required.
NOTE:
To clean out condensate trap, see Maintenance section.
The condensate line must remain unobstructed. If allowed to freeze
in the line or obstructed in any other manner, condensate can exit
from the boiler tee, resulting in potential water damage to property.
When installing a condensate pump, select one approved for use
with condensing boilers and furnaces. The condensate pump should
have an overflow switch to prevent property damage from spillage.
Condensate from the boiler will be slightly acidic (pH from 3.2 to 4.5).
Install a neutralizing filter if required by local codes.
Power to the optional condensate pump is continuous. When the
boiler is powered off the condensate pump will remain on. It is
important to remember to turn off the condensate pump when
powering down the boiler. Failure to do so could result in property
damage, severe personal injury, or death.
Is is very important that condensate piping be no smaller than 3/4”.
Use a tee at the condensate connection with a branch vertically
up and open to the atmosphere to prevent a vacuum that could
obstruct the flow of condensate from the boiler. To prevent sagging
and maintain pitch, condensate piping should be supported with
pipe supports.
When installing a condensate pump, select one approved for use
with condensing boilers and furnaces. The pump should have an
overflow switch to prevent property damage from condensate
spillage.
Part 7 - Wiring
To avoid electrical shock, turn off all power to the boiler prior to
opening an electrical box within the unit. Ensure the power remains
off while any wiring connections are being made. Failure to follow
these instructions could result in component or product failure,
serious injury, or death. Such product failure IS NOT covered by
warranty.
Jumping out control circuits or components WILL VOID product
warranty and can result in property damage, personal injury, or
death.
Label all wires prior to disconnecting them when servicing the
boiler. Wiring errors can cause improper and dangerous operation.
Failure to follow these instructions may result in property damage
or personal injury.
It is of extreme importance that this unit be properly grounded. It
is very important that the building system ground is inspected by
a qualified electrician prior to making this connection. Electrical
power must only be turned on when the boiler is completely filled
with cold water. Failure to follow these instructions could result in
component or product failure, serious injury, or death.
Electrical Shock Hazard
- Turn off electrical power supply at service
entrance panel before making any electrical connections. Failure to
follow to do so could result in serious injury, or death.
Wiring must be NEC Class 1. If original wiring supplied with the boiler
must be replaced, use only TEW 105
o
C wire or equivalent. Boiler
must be electrically grounded as required by the National Electrical
Code, ANSI/NFPA 70 - Latest Edition.