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6. Ener-G-NET
Mode
Indicators
LED
Display
User Modes are used to select from three distinct operational modes. To select, press the green MODE button and press again to cycle through the three
available modes. A green dot illuminates to display the current mode.
User Mode
Code
Standard
Traditional operation within preset temperature differential using a low and high limit.
Efficiency
On-Demand sensing reduces fuel consumption by limiting boiler operation during idle periods.
Vacation
Reduced temperature setting minimizes boiler operation during anticipaated periods of non-use.
Installer Settings are used to adjust functional operating parameters. To adjust, press and hold the SET button until the Temperature setting appears.
Cycle through settings by depressing the SET button and using the ▼ and ▲ buttons to change the settings.
Setting
Code
Temperature
Domestic hot water setpoint. Default is 120°F
Differential
Domestic hot water temperature drop before call for heat. Default is 10°F.
Post-Purge
Early boiler shutoff prior to hot water setpoint. Circulator runs until setpoint. Default is 0°F.
Priority
Temporarily cancels space heat to maxmize available energy for hot water. Default is 'n'.
Capacity
Water heater capacity; select appropriate size for proper operation. Default is 41 Gallons.
BTU Transfer
Real-time BTU transfer estimate in 1000 BTU/Hr increments. Diagnostic readout only.
*Available in Standard Mode only.
**Available only when Differential setting is 10.
Diagnostic Error Codes display a visual indicator and sound an alarm if a fault is detected. Codes clear automatically when corrected or can be reset by
interrupting power to the control for 5 seconds. To silence an alarm, depress the ▼ on the keypad.
Error
Code
Temp Sensor
Temperature sensor (thermistor) fault.
Overheating
Domestic hot water temperature has exceeded maximum setpoint.
Slow Heating
Unit has taken over 60 minutes to reach hot water setpoint or cannot reach setpoint.
***See Troubleshooting section for additional information
Operating Indicators are used to display operational and functional status. Water sensor temperature may be shown for 30 seconds by pressing
the ▲ button.
Indicator
Code
Startup Test
Displayed briefly during intial powerup to test LED display segments.
Idle
Static numeric [setpoint] readout (factory default shown) indicates domestic hot water setpoint.
Alternating On and [Setpoint] is displayed during a heating cycle while the circulator pump contacts are closed.
Heating
Control Setup & Adjustment
™
Ener-G-NET features two distinct programming areas: User Modes and
Installer Settings. User Modes consist of three end-user functional
User
modes, while Installer Settings are primarily accessed upon initial setup
Modes
to specify critical operating parameters. Ener-G-NET factory defaults
allow traditional operation suitable for most homes. To optimize the
control setup, reference the tables below.
Installer
Settings
Description
Description
Description
Description
-7-
Temperature settings above 120° F can create a
scald hazard.
Sensor unplugged
Sensor damaged
Error in boiler plumbing
Zone valve stuck open
Leak in sensor well
Faulty equipment
Fouled heat exchanger
No fuel
Range
90-150
5,10*
0,4,8**
y/n
26,41,60,80,120
0-199MBH/Hr
Potential Causes***
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