Install Instructions

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110503-01 - 4/20
CL Installation & Service Manual
10 Operating (continued)
To change the well type
• Turn the LO TEMP dial to access the
Program Mode - indicated in the display as
Pro.
• Turn the HI TEMP dial to select feature 8.
• Push the Test/Setting Button to select A for
Electro-Well or b for Standard Well.
NOTE: To ensure that the low water cut-off is always
active when the control is installed on an Electro-
Well, setting b will ONLY be available when installed
on a standard well. The HydroStat sensor checks to
determine if a standard well is used by looking for low
resistance to ground, a condition that can only exist
with a standard well. If you are installing on a standard
well and either Low Water LED’s are on, setting b
will not be available. Check to see if the inside of
the well tube is badly oxidized or contaminated with
heat transfer grease. It may be necessary to clean
the well to allow for setting b to be selected (See
Troubleshooting Guide for more information).
8. High Limit Differential
When the Economy feature is on, the
control’s Thermal Targeting feature
actively sets varying differentials based on
system conditions. This option allows for
selecting a 10, 20 or 30 degree fixed
differential when the Economy feature
is turned OFF. These optional differential
settings are subtractive from the HIGH LIMIT
setting. Note: If the Economy feature in on,
this setting will be overridden by the control’s
Thermal Targeting function.
To change the high limit differential
• Turn the LO TEMP dial to access the
Program Mode - indicated in the display as
Pro.
• Turn the HI TEMP dial to select feature 9.
• Push the Test/Setting Button to select a
high limit differential of 10, 20, or 30.