LP-293 Rev. 9.24.15
60
Figure 32 - Heat Exchanger Detail
C. Cleaning Water Side of Heat Exchanger
1. Make sure power is turned o to the boiler. Run water through
the hot water system to
ensure it is below room
temperature.
2. Close isolation valves
on the return and supply
connections to the
boilers as shown in the
piping diagrams in this
manual. Slowly open the
ball valves and release
pressure into a bucket.
Once pressure is released,
connect a hose to the
water line to ush the
boiler. Scale removing
solution may be used, but
must be approved for use
with stainless steel and
FDA approved for use in a
potable water system.
3. Thoroughly ush the heat exchanger before commissioning
the unit back in service.
D. Maintaining the Condensate System
When servicing is complete, make sure the condensate collector
cap is replaced securely. Failure to do so will cause venting
issues that will result in serious injury or death.
The condensate trap assembly MUST BE PROPERLY INSTALLED
according to these instructions when operating the boiler.
Operating the boiler without the condensate trap assembly will
cause ue gases to leak and result in serious personal injury or
death.
1. Ensure the boiler is powered o and has had time to cool.
2. Remove the hose clamp attaching the condensate trap to
the condensate hose from the heat exchanger. Remove the
clear plastic hose from the hose barb. Remove the condensate
hose clamp to detach the condensate trap from the drain tube.
Remove the condensate trap from the boiler.
3. Remove the bottom cap from the condensate trap.
4. Flush trap with fresh water to remove debris from the trap.
NOTE: Ensure the oat moves freely within the trap. If the oat
does not move, DO NOT reinstall the trap.
5. When the condensate trap is suciently clean, reinstall the
bottom cap on the trap.
Do not install the condensate assembly if a component is lost
or missing. Replace the entire assembly. Failure to follow this
warning could result in property damage, serious personal
injury, or death.
6. Fill the condensate trap with fresh water prior to reassembly
on the boiler.
7. Install the condensate trap on the condensate hose from
the heat exchanger. Use the hose clamp to secure the trap.
Attach the clear plastic hose onto the hose barb. Reinstall the
condensate hose clamp to detach the condensate trap from
the drain tube.
NOTE: Ensure all parts shown in Figure 33, Condensate Detail,
are installed with the condensate trap. If any parts are missing,
DO NOT reinstall the trap. Replace the entire assembly.
Do not operate the boiler without the clear hose attached
from the hose barb to the pressure switch. Failure to follow
this warning could result in property damage, serious personal
injury, or death.
8. If a condensate neutralizer kit is installed with the boiler,
check the assembly when cleaning the condensate trap, and
replenish the limestone chips if necessary. When replacing
limestone chips, take care to ensure chips are no smaller than
Figure 33 - Condensate Detail
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