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" communica-
tion packets received by the system from the PLC transmitter system.
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
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.
03
Outlet water temperature is out of normal operating
range. This can indicate an open sensor, a short in the
wiring, or a circuit board which is out of calibration.
04
Discharge air temperature is out of normal operating
range. This can indicate an open sensor, a short in the
wiring, or a circuit board which is out of calibration.
A
pp
en
di
x
Appendix
A.09
Comfort Plus Hydronic
HAZARDOUS VOLTAGE:
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
