Location L001

Factory Default	Default Range	Description / Function
60 (°F) 16 (°C)	Determined by values in L007/L008	2100 Series Room Temperature Set Back - Room temperature to be maintained in response to a set back signal. This value may not be set below the value in L008 (Minimum Room Temperature Set Point). A set back signal can be initiated from a low voltage input or Steffes Power Line Carrier (PLC) system. NOTE: In applications where a Steffes Time Clock Module is being used to signal room temperature set back, the value in this location is not applicable. (Reference L035, L060, and L074-L089.)
3100/4100 Series Specialty Applications Only
140 (°F) 60 (°C)	Determined by values in L007/L008.	5100 Series Minimum Outlet Water Temperature - Minimum outlet water temperature to be targeted. This value cannot be set higher than the value in L007 or lower than the value in L008. The targeted outlet water temperature is also affected by the values in L012 and L013. Example: If the values of L012 = 60; L013 = 20; L000 = 180; L001 = 140, an outdoor temperature of 40°F would result in a targeted outlet water temperature of 160°F. NOTE: If an outdoor temperature sensor is NOT installed, the system targets the outlet water temperature as set in L000.
140 (°F) 60 (°C)	Determined by values in L007/L008.	9100 Series Minimum Outlet Water Temperature - Value indicates the minimum outlet water temperature to be targeted. This value cannot be set higher than the value in L007 or lower than the value in L008. The targeted outlet water temperature is also affected by the values in L012 and L013. For example, if the value in L012 = 60; L013 = 20; L000 = 180; L001 = 140, then at an outdoor temperature of 40 degrees, the targeted outlet water temperature would be 160 degrees. NOTE: If an outdoor temperature sensor is NOT installed, the system targets the outlet water temperature set in L000. NOTE: If using a serial interface the “TW” command sets target water as a percentage between L000 and L001.

Factory

Default

Range

Description / Function

60 (°F)

16 (°C)

Determined by values in L007/L008

2100 Series

Room Temperature Set Back - Room temperature to be maintained in response to a set back signal. This value may not be set below the value in L008 (Minimum Room Temperature Set Point). A set back signal can be initiated from a low voltage input or Steffes Power Line Carrier (PLC) system.

NOTE: In applications where a Steffes Time Clock Module is being used to signal room temperature set back, the value in this location is not applicable. (Reference L035, L060, and L074-L089.)

3100/4100 Series

Specialty Applications Only

140 (°F)

60 (°C)

Determined by values in L007/L008.

5100 Series

Minimum Outlet Water Temperature - Minimum outlet water temperature to be targeted. This value cannot be set higher than the value in L007 or lower than the value in L008.

The targeted outlet water temperature is also affected by the values in L012 and L013.

Example: If the values of L012 = 60; L013 = 20; L000 = 180; L001 = 140, an outdoor temperature of 40°F would result in a targeted outlet water temperature of 160°F.

NOTE: If an outdoor temperature sensor is NOT installed, the system targets the outlet water temperature as set in L000.

140 (°F)

60 (°C)

Determined by values in L007/L008.

9100 Series

Minimum Outlet Water Temperature - Value indicates the minimum outlet water temperature to be targeted. This value cannot be set higher than the value in L007 or lower than the value in L008. The targeted outlet water temperature is also affected by the values in L012 and L013. For example, if the value in L012 = 60; L013 = 20; L000 = 180; L001 = 140, then at an outdoor temperature of 40 degrees, the targeted outlet water temperature would be 160 degrees.

NOTE: If an outdoor temperature sensor is NOT installed, the system targets the outlet water temperature set in L000.

NOTE: If using a serial interface the “TW” command sets target water as a percentage between L000 and L001.

Location 1 (L001)

Configuration 12 (C012)

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