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CONTROL PANEL INDICATIONS
LED display
1.
Indicates the “Temperature Set Point” when blinking. Displays the “Actual Temperature”
when the display remains lit.
2.
It displays both the “Preset Water Quantity” and the “Actual Water Quantity”.
“Combustion”
- When lit indicates that the water heater is operating and burning gas.
“Water valve”
- Indicates one of the following three states:
1.
No light indicates water heater is operating normally.
2.
Blinking: Indicates there is no water flow through the water heater or the water flow is less
than 0.66 gallons per minute (2.5 liters per minute)
3.
When on and remaining lit, the firepower of the water heater is operating at either the
minimum or maximum operating point. The actual water temperature may not reach the
preset temperature. The water flow rate needs to be adjusted so the unit is operating
within its capacity range. This will allow the desired temperature to be reached.
“
o
C/L”
- Indicates metric units are being displayed (degrees Celsius, liters)
“
o
F/G”
- Indicates English units are being displayed (degrees Fahrenheit, gallons)
“Up + / Down -” keys
- Used for setting the water temperature and water quantity.
“Mode” key
- Used to Set (F4) the water quantity or Display (F3) the water volume already
delivered.
“OFF/ON” key
: This button enables or disables the water heater. In the “ON” mode, the
temperature set point is displayed. The factory default temperature setting is 107
o
F (42
o
C). In
the “OFF” mode, “CL” (Cold) is displayed.
Figure 2 - Control Panel Diagram
When the water temperature is above
95° F (35° C) the lamps are lit one
by one from bottom to top.
Failure mode displays when a failure
occurs, temperature display mode is
switched to failure display mode.
Description of the mode key
F3 current water quantity
F4 preset water quantity
Summary of Contents for AHG-T42-LP
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