Polaris PG10 Instruction Manual page 38

OPERATING STATES
The current operational state of the water heater is displayed on the Desktop screen as the Status. The common operational states are
described in the table below.
State Description
The water heater is not in an active heating cycle. IE: the Tank Temperature is at or above the Operating Set Point minus
Standby
temperature differential.
Input Verification The control system is conducting a diagnostic check at the beginning of a heating cycle.
Water Heating A Fault condition is detected by the control or when the Enable/Disable switch at the base of the water heater is an
Disabled open circuit.
Pre-Purge The Combustion Blower is energized to flush residual flue gases from the combustion chamber prior to ignition.
Spark Igniter The Igniter is energized and is ready to ensure proper ignition.
Energized
Igniter Activiation The 24 Volt Gas Control Valve is energized and opens to allow fuel gas to flow to the Main Burner.
The control System is monitoring the flame sensor for the required minimum flame sensing current. Ensure the water
Ignition
heater is properly grounded. Flame sensing Requires an adequate earth ground. If the water heater is not properly
Verification
grounded it will cause ignition failure.
Inter-Purge The Combustion Blower is energized to flush residual fuel gas from the combustion chamber after a failed ignition attempt.
Heating Ignition was successful, flame sensing current has been established. The water in the storage tank is being heated.
The Combustion Blower is energized to flush residual flue gases from the combustion chamber at the end of a heating
Post-Purge
cycle.
The control system has detected a Fault condition. Heating operation is disabled (control system lock out) until the Fault
condition is corrected. Water Heating Enable/Disable Switch must be cycled off and on to reset the control system.
Fault
NOTE: Cycling Water Heating Enable/Disable Switch will not reset the control system if the condition that caused the Fault
has not been corrected.
Heating Disabled The heating is disabled by the Enable/Disable switch located at the base of the water heater.
CONTROL SYSTEM MENUS
From the Desktop screen pressing the Operational button directly below Menu on the LCD will display the Main Menu. This is where all
control system menus are located. The table below describes the control system menus.
Menu Description
Temperatures Most commonly accessed menu. Contains the Operating Set Point and Differential user settings.
This menu displays the current state of all pressure switches and the ECO (open/closed). The on/off status of the
Heater Status Combustion Blower, 24 Volt Gas Control Valve, Igniter, Flame Sensor and other monitored water heater components
are displayed in this menu.
Temperature units (°F or °C), the LCD appearance (brightness/contrast) and backlight delay user adjustable settings
Display Settings
are located in this menu.
Elapsed time of operation, total heating cycle time, heating cycle count, heating on time along with UIM and CCB
Heater Information
software revisions can be viewed in this menu.
Current Fault Displays any current Alert or Fault messages.
This control system menu retains a list of the last nine (9) Fault and Alert messages with a time stamp. The newest
Fault History
event will replace the oldest. Fault history memory is cleared after 30 days.
This control system menu retains a running total of how many times each Fault condition has occurred since the water
heater was first installed. This data does not clear and cannot be reset.
Fault Occurrence
NOTE: if the CCB is replaced during service the fault occurrence historical information for the water heater is lost.
This control system feature allows the user to restore control system user settings to their factory default settings.
Restore Factory Defaults
Display Settings preferences ARE NOT changed when factory defaults are restored.
Text based operational and user information explaining how to change user settings, navigate the control system menus
Help Screens
and icon descriptions.
Table 13 – OPERATING STATES
Table 14 – CONTROL SYSTEM MENUS
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