American Water Heater HCG3 130T 300 instruction manual Change Back Help

Temperatures Menu (cont)
	Description/Action	Display
• Tank Temperature - non adjustable - control system		Top of Menu
	sensed temperature (averaged from upper and lower	Temperatures
	temperature probes).	Operating Set Point		140°F
•	Upper Temperature - non adjustable - control system
		Differential		8°F
	sensed temperature from the Upper Temperature Probe.
•	Lower Temperature - non adjustable - control system	Tank Temperature		120°F
		Upper Temperature		122°F
	sensed temperature from the Lower Temperature Probe.
•	(Heater Regulated to Tank) - non adjustable -	Lower Temperature		118°F
		(Heater Regulated to Tank)
	configuration information.
• Upper Probe & Lower Probe Offset - adjustable user		Upper Probe Offset		0°F
	setting, range -5° to +5° (factory setting 0°).	CHANGE	BACK	HELP
	Note: These settings should only be used if the hot water
	supply temperature varies greatly from the Operating Set	Bottom of Menu
	Point setting.
	The Upper and Lower Probe Offsets are used to calibrate	Temperatures
	control system temperature sensing. This can improve the	Differential		8°F
	precision of temperature control in the storage tank and at
		Tank Temperature		120°F
	points of use. This feature can also be used to compensate
		Upper Temperature		122°F
	for building recirculation loops (hot water returning to the
		Lower Temperature		118°F
	storage tank) that may cause the heating cycles to terminate
	prematurely.	(Heater Regulated to Tank)
	Example: If the current sensed temperature from a	Upper Probe Offset		0°F
		Lower Probe Offset		0°F
	temperature probe is 120°F (49°C) and the Offset setting for
	that probe is adjusted to a value other than 0°, the control	CHANGE	BACK	HELP
	system would calibrate or “offset” the sensed temperature
	from the probe and the averaged tank temperature. Heating
	cycles would be activated and deactivated based on the
	calibrated (offset) temperature.

These settings are adjusted in the same way described for the Operating Set Point And Differential Adjustment on page 45.

Heater Status Menu

	Description/Action	Display
Select Heater Status from the Main Menu and press the		Top of Menu
Operational Button under "SELECT" to enter this menu. This		Heater Status
menu contains non adjustable operational information. Use the		Status	Standby
Up & Down Buttons to navigate the menu.
• Status - displays the current Operating State, see Table 12		ECO Contact	Closed
		Low Gas PS	Closed
	on page 44.
•	ECO Contact, Low Gas PS, Blocked Inlet PS, Blocked	Blocked Inlet PS	Closed
		Blocked Outlet PS	Closed
	Outlet PS, Blower Prover PS - displays the current state
	of the switch contacts; open or closed.	Blower Prover PS	Open
• Blower On, Igniter On, Gas Valve On - displays whether		Blower On	No
	or not the control system is currently energizing these water	BACK	HELP
	heater components; yes = energized, no = de-energized.
• Igniter Current - displays whether or not the control		Bottom of Menu
	system has detected the required minimum current, see
	Sequence Of Operation on page 46.	Heater Status
•	Flame Detected - displays whether or not the control	Blower On	No
	system has detected Main Burner flame during ignition from
		Igniter On	No
	the flame sensor.
•	External Input Enable - displays whether or not the S1	Igniter Current	No
		Gas Valve On	No
	dipswitches have been configured to activate the enable/
	disable circuit, see Enable/Disable Circuit on page 39.	Flame Detected	No
• Ignition Trials - displays whether or not the S1 dipswitches		External Input Enable	No
	have been configured to allow 1 or 3 trials for ignition	Ignition Trials	3
	before declaring an "Ignition Failure" Fault condition, see	BACK	HELP
	the CCB - Central Control Board Layout on page 63.

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