28
Operation
In the POOL or SPA modes, the actual water temperature
is displayed along with the desired water temperature
(SETPOINT). When the water temperature is above the
setpoint, “Water Temp” will alternate with “No Demand.”
When the water temperature is below the setpoint and the
heater is firing, “Water Temp” will alternate with “Heating.”
To adjust the setpoint temperature, make sure the control
is in the appropriate mode (POOL or SPA) and touch the
UP or DOWN keys.
By default, the setpoint range is 50-104°F (10-40°C). See
"Program Menu"
on page
31
to increase the MAX
setting, if necessary.
OFF
Water Temp 68F
OFF
No Demand
Figure 36. Alternating Display During Heating
Service Menus
To access the Service Menu and fault history, press the
SERVICE key 1 time. The heater will continue to operate
while in the Service Menu.
The first screen displayed is the Flame Strength indicator,
which indicates the flame current using a numerical display.
A signal of less than 1.0 μA indicates a weak flame signal
and may require service. Refer to
"Troubleshooting" on
page
47
for possible causes and corrections.
Flame Strength
9.5uA
Flame Strength
9.5uA
Figure 37. Flame Strength Indicator
Press the DOWN key. The Supply Voltage screen indicates
the voltage supplied to the control board. Normal readings
range from 24 to 30 volts.
Supply Voltage
28V
Figure 38. Supply Voltage Indicator
Press the DOWN key. The "Hours" run time indicates the
total hours of operation for the pool heater, as measured by
the amount of time that the gas valve has been powered.
The "Cycles" count indicates the number of on/off cycles of
the heater, as measured by the number of times the valve
has been powered.
Hours 451
Cycles 89
Figure 39. Run Time/Cycles
Press the DOWN key. The Fault History displays up to ten
faults in memory. The order of the faults begins with "Last
Err" which is the most recent fault, and proceeds through
the ten most recent messages in reverse chronological
order. Run time hours at the moment of the fault are
displayed at the end of line one. The second line of the
display shows the fault message. If there are no faults in
the history buffer, the second line reads “All Faults Clear.”
Last Err 450
Inlet Temp Fail
Fault 1 150
Flow Sensor Fail
Last Err 0
All Faults Clear
Figure 40. Fault History Indicator
Press the Service key again. The advance service
menu is accessed.
Inlet and Outlet Temperature
The Inlet / Outlet Temperature screen indicates the water
temperature sensed in the inlet and at the outlet of the pool
heater.
In/Out Temp
In 68F, Out 78F
Figure 41. Inlet and Outlet Temperature
Summary of Contents for AVIA 264A
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