Steffes 4140 Owner & Installers Manual - Manual (Page 6)

CONTROL PANEL
Operation of the Comfort Plus heating system is automatic. Operational function
settings are stored in a microprocessor on the processor control board. These settings
are modified, if necessary, through the Configuration Menu as described on Pages
3.13-3.14. In most applications, the system is configured upon installation and no
further changes are required.
Four-Digit LED Display
The four digit LED displays specific operating information. During the configuration
process, the configuration number and the values set in these configurations are
displayed for viewing and adjusting purposes.
AM and PM Indicator Lights
The AM and PM indicator lights are only utilized if the Steffes Time Clock Module is being installed and using 12
hour time display. With this module installed, the system displays time on AM/PM intervals. The light flashes next
to the active designator/symbol. The system can be configured to display military time, in which case, both the AM
and PM lights illuminate.
Mode (Edit) Button
Used to access menus on the system (i.e. Help Menu or Configuration Menu)
and to allow modifying of configuration settings.
Up and Down Arrow Buttons
Used to scroll up or down when viewing or modifying.
operating functions.
Interface Port
Allows technician external access for advanced operating modes, updating software, and troubleshooting.
OPERATING STATUS
The four digit LED will display various operating information as described below. Press and release the up arrow
to view this data.
Operating Mode - Indicates the current operating mode of the Comfort Plus system.
C = Off-Peak (Charge) Time
P = On-Peak (Control) Time
A = Anticipated Peak Time
Outdoor Temperature -“O”, followed by a number, indicates current outdoor temperature.
Heat Call Status - Indicates the current heat call status being received from the room
thermostat. Refer to Low Voltage Electrical Connections - Room Thermostat for more
information.
Brick Core Charge Level - “CL” (charge level) followed by a number, indicates the
current percentage of heat stored in the brick core. “CL:_” represents a core temperature
lower than the minimum core temperature and “CL: F” represents a full core charge level.
Targeted Brick Core Charge Level - “tL” (target level) followed by a number, indicates
the current percentage of brick core charge being targeted by the Comfort Plus. A display of
“tL:_” indicates that the system will not maintain any heat in the brick core and “tL: F”
indicates a full core charge target level.
Operation 1.02 Comfort Plus
M
Operation
A bar illuminates on the lower portion of
the display's second digit whenever the
heating elements are energized.
CONTROL PANEL
FIGURE 1
M
M
A
M
P
IMPORTANT
Editing configuration
information may alter
the performance and
operation of the system.