User Guide

FIGURE 13.3: CONDENSATE TRAP EXPLODED PARTS VIEW

t. Replace any wiring which has been disconnected.

u. 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.

v. Test the ow switch. To do this:

• Start with the boiler in standby.

• Close a shut-off valve in the boiler loop.

•  InitiateacallforheatandconrmthattheboilershowsHold137indicatingthattheowswitchisopen.

w. Follow ALL instructions in Part XI (Start-up and Checkout) to place the boiler back in service, including the

performance of a combustion test.

CAUTION

If burner comes on with no ow through the boiler, there is a problem with the ow switch. Turn the

boiler off immediately. Failure to do so could cause severe heat exchanger damage.