Install Instructions

If control fails to operate, perform the following diagnostic checks.
1. Check to be sure the water level in the boiler is at or above the level of the probe.
2. Re-check all wiring to ensure proper connections as specified in boiler manufacturers wiring
diagrams or these instructions.
3. Check to ensure that Teflon
®
tape has not been used on the threaded connection of the electrode
to the boiler.
4. Re-check the electrical ground connection for the remote sensor and control unit.
5. Check the quality of the boiler water to ensure adequate conductance.
MAINTENANCE
SCHEDULE:
• Inspect probe annually or more frequently for scale build-up and clean or replace if necessary.
Make certain there is no scale or build-up on the probe or it's white Teflon
®
insulator. Be careful not to
damage the Teflon
®
insulator.
• Test the low water cut-off annually or more frequently, if required by code.
Replace Probe if:
• Teflon® insulator is cracked or wo r n .
• P r obe is loose.
Failure to fo l l ow this caution could cause pro p e r ty damage, p e rsonal injury or death.
CAUTION
Clean probe by wiping with non-abrasive cloth and rinsing with clean water. DO NOT
use sharp instruments to remove any accumulations of rust or scale.
NOTE
• Replace probe every 10 years. More frequent replacement of the probe is required if it is used in locales
where significant water treatment is required, or in applications with high make-up water requirements
• Replace the low water cut-off every 15 years.
ITT
8200 N. Austin Ave.
Morton Grove, IL 60053
tel: [phone]
fax: [phone]
www.mcdonnellmiller.com
McDonnell & Miller
©2010 ITT Corporation
Printed in U.S.A. 3-10 210995