IQ Low Water Cutoff Instructions

Page 7 of 8
CLEANING, MAINTENANCE, AND REPLACEMENT
• Test the operation of the LWCO annually (or more frequently) by activating the Test feature. The “Low Water” LED
should turn RED and the boiler should shut down.
• Inspect the probe every 5 years for scale build-up or coating. Clean all oils, uxes, and scale from the probe using a
clean rag.
• Replace the control unit every 15 years. In areas of high humidity, heavy dust, or other airborne contaminants, it may
be necessary to replace the control unit more frequently.
ORDERING INFORMATION
Part Number Description
102711-01 LWCO Limit Control IQ Option Card kit, Hot Water LF Module, Automatic Reset, for use with Option
Control Panel, With Probe, ¾ inch NPT, Instructions, Unit Pack
102714-01 LWCO Limit Control IQ Option Card kit, Hot Water LF Module, Manual Reset, for use with Option
Control Panel, With Probe, ¾ inch NPT, Instructions, Unit Pack
102301-01 LWCO Limit Control IQ Option Card, Hot Water LF Module, Automatic Reset, for use with Option Con-
trol Panel, Less Probe, Unit Pack
102302-01 LWCO Limit Control IQ Option Card, Hot Water LF Module, Manual Reset, for use with Option Control
Panel, Less Probe, Unit Pack
102305-01 LWCO Probe, ¾ inch NPT
Inspect the probe sooner if the “Service” LED comes on.