Steffes 5140 Owner & Installers Manual - Manual (Page 35)

Comfort Plus Hydronic Appendix  A.10
HelP Menu
The Comfort Plus Hydronic system contains a "HELP" menu which may be accessed through the control panel. To
access the "HELP" menu, press and release the M button until the faceplate displays “HELP”. Scroll through this
menu by pressing either the up or the down arrow button.
Display
reading Description
Fxxx Firmware Version Number - Indicates the version of software installed.
O xx Outdoor Temperature - Indicates current outdoor temperature as recognized by the system.
tL:xx Target Level - Indicates the percentage of brick core charge level the system is targeting. During
peak periods the value displays as "tL_".
CL:xx Charge Level - Indicates the percentage of heat storage currently in the brick core.
HE x Heating Elements Active - Indicates the total number of heating elements currently energized.
PC x Power Line Carrier Channel - Indicates the channel on which the system is set to receive PLC
communication signal.
P x Power Line Carrier Net Hit Rate Percentage - Indicates the percentage of "GOOD" communication
packets received by the system from the PLC transmitting device.
PS x Indicates which Specialty Timer the system is currently using. The value displayed will be zero if the
Specialty Timer is not being utilized.
CC_x Charge Mode Operation - Indicates the charge control method being utilized during off-peak periods.
CA_x A-Peak Mode Operation - Indicates the charge control method being utilized during anticipated peak
periods.
C1_x Specialty Timer #1 Charge Mode - Specialty Applications Only
C2_x Specialty Timer #2 Charge Mode - Specialty Applications Only
HUxx Heat Usage - Indicates the percentage of input being dissipated by the system.
A_xx Target Discharge Air Temperature - Indicates the discharge air temperature that the system is
targeting.
cxxx Compressor Output Relay Delay Timer - Indicates time remaining before heat pump compressor is
energized. "c ON" indicates the heat pump is energized.
error coDeS
The Comfort Plus Hydronic system has an on-board diagnostic system to
monitor various operating conditions. If operating conditions move outside the
normal operating range, an error code is displayed on the faceplate. If there
are multiple errors simultaneously, only the highest priority error code appears.
Once corrected, the next highest priority code will be displayed. Error codes
will be displayed on the faceplate as “Er—” (i.e., Er05).
Error Code Description
01 The lower core (Core A) thermocouple temperature is
out of normal operating range. This can be caused by
an open, shorted, or otherwise defective thermocouple
or a circuit board which is out of calibration.
02 The upper core (Core B) thermocouple temperature is
out of normal operating range. This can be caused by
an open, shorted, or otherwise defective thermocouple
or a circuit board which is out of calibration.
HAZARDOUS VOLT-
AGE: Risk of electric
shock. Can cause injury
or death. System may
be connected to more
than one branch circuit.
Disconnect power to all
circuits before servic-
ing. Equipment must be
serviced by a qualified
technician.
WARNING