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Refer to Part VII (Venting) to re-assemble any vent system components that are disassembled during this
inspection. Also refer to Part VII for details on supporting, pitching, and terminating the vent system.
s. Replace any wiring which has been disconnected.
t. Inspect the hydronic system. Look for leaks and repair any found. If system contains antifreeze, or other additives,
test and/or maintain them as directed by the additive manufacturer. See Part XI (Start-up and Checkout) for
important information on boiler water and the use of boiler water additives.
u. Test the ow switch. To do this:
• Start with the boiler in standby.
• Either close a shut-off in the boiler loop or unplug the boiler pump at connector L1. (Figure 10.6)
• InitiateacallforheatandconrmthattheboilershowsanActiveFaultindicatingthattheowswitchis
open.
v. Follow ALL instructions in Part XI (Start-up and Checkout) to place the boiler back in service, including the
performance of a combustion test.
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