Westinghouse WBR 055 Manual page 63

C. Cleaning Water Side of Heat Exchanger
1. Make sure power is turned off 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 flush 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 flush the heat exchanger before commissioning
the unit back in service.
D. Maintaining the Condensate System
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 flue gases to leak and result in serious
personal injury or death.
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.
1. Ensure the boiler is powered off and has had time to cool.
2. Remove the stainless steel lock pin to release the
condensate trap. Remove the clear plastic hose from the
hose barb. Remove the trap from the drain tube.
3. Remove the bottom cap from the condensate trap.
4. Flush trap with fresh water to remove debris from the trap.
NOTE: Ensure the float moves freely within the trap. If the
float does not move, DO NOT reinstall the trap.
5. When the condensate trap is sufficiently clean, reinstall the
bottom cap on the trap.
NOTE: Ensure all parts shown in Figure 36, Condensate
Detail, are installed with the condensate trap. If any parts
are missing, DO NOT reinstall the trap. Replace the entire
assembly.
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.
Figure 36 - Condensate Detail
7. Slide the condensate trap adapter onto the drain tube until
the holes line up with the groove.
8. Insert the stainless steel hitch pin to lock the condensate
adapter to the drain tube.
9. Reattach the clear plastic hose to the hose barb.
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