The high-limit function is a security feature which allows you to select the maximum temperature
limit of the thermostat. When this function is ON the thermostat will not allow heating settings
to exceed this temperature limit.
To enable the high-limit setting feature:
Press "UP" or "DOWN" to scroll to the desired high limit temperature
(this temperature will display in the program temperature pane on the LCD screen)
Press the USAGE/TIME button and OPTION/COPY button for 3 seconds
(both at the same time)
(the LOCK symbol will appear to confirm that the high-limit feature is ON)
To disable the high-limit setting feature:
Press and hold the (R) RESET button (located under faceplate / press with a narrow blunt object)
(The lock symbol will begin flashing)
Press the USAGE/TIME button and OPTION/COPY button for 3 seconds
(both at the same time)
(When the LOCK symbol disappears this indicates that the high-limit feature is OFF)
Note: When the high-limit function is ON all existing programs will be changed. If any temperature
settings are above the high-limit they will be reduced to the high-limit setting. The temporary override
maximum temperature setting will also be limited.
High-Limit Function
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Final Size: 5” x 3” / 12.5cm x 7.5cm
