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11
Operating information
Installation & Service Manual
Access modes
User
Press the ENTER button for 5 seconds.
Installer
Most parameters are available only to the installer, accessible
by entering the installer key combination: Press the ENTER
and DOWN buttons simultaneously for 5 seconds.
Saving parameters
(reference the Parameter Table
on page 61 of this manual)
To save parameters and exit programming:
Press the ENTER button to go to the end of the Parameter
List, then press ENTER again. Otherwise, the parameters
will be saved automatically after Timeout.
To enter a parameter and continue programming:
Press the UP or DOWN button to change parameters. Press
ENTER to move to the next parameter and to the end of
the Parameter List. Press ENTER to save and return to
the Base Screen. Otherwise, the parameters will be saved
automatically after Timeout.
E00
Invalid Lockout
E01
Memory Lockout
E02
Fan Speed Fault
E04
Flow Switch Fault
E05
Flame Out of Sequence
E06
Auto Reset Hi Limit
E07
Air Pressure Switch
E08
Heat Exchanger Limit
E09
Auxiliary Limit
E11
No Flame Running
E12
No Flame Ignition
E13
Flue Temperature Limit
E15
Manual Reset Hi Limit
E18
Outlet Sensor Differential
E19
Flue Sensor Open/Short
E21
Outlet Sensor Open/Short
E22
Inlet Sensor Open
E23
Inlet Sensor Short
b01
Setpoint Met
b02
Anticycling
b03
Outlet Temperature Too High
b04
Delta T Too High
b05
Flue Temperature Too High
b06
Low Voltage
n01
Fan Limited due to No Flue Sensor Change
n02
Fan Limited due to High Outlet Temperature
n03
Fan Limited due to High Delta T
n04
Fan Limited due to High Flue Temperature
n05
Fan Increased due to Low Flame Current
n06
DHW Sensor Fault (Combi Only)
n07
Inlet Sensor Open
n08
Inlet Sensor Shorted
n09
Outdoor Sensor Required
Error Codes with Explanation
Lockout Codes
Blocking Codes
Notification Codes (Unit is still Running)
Table 11-2 Lockout, Blocking and Notification Codes
Table 11-3 Outdoor Air Table
25°F (FIXED)
OUTDOOR AIR
AT MAXIMUM RESET
70°F (FIXED)
OUTDOOR AIR
AT MINIMUM RESET
P02
MINIMUM RESET
(DEFAULT = 70°F)
P01
MAXIMUM RESET
(DEFAULT = 180°F)
u02
USER SET POINT
(DEFAULT = 120°F)
WATER
TEMPERATURE
SET POINT
OUTDOOR AIR
TEMPERATURE
IMG00349
