AERCO C-More Controls - Manual (Page 39)

C-MORE CONTROL PANEL OPERATION
4. Press BACK to exit the Water Temp Reset
function.
6.2.11 Gas Press Reset
The Gas Pressure Reset function can be set to
Automatic or Manual to indicate whether the unit
can be restarted or must wait for manual
acknowledgement following a high or low gas
pressure fault and fault correction. The default
setting for this function is Manual. Regardless
which setting is used, the High or Low Gas
Pressure fault message will be latched. The
default for this function is Manual. To view or
change the setting, proceed as follows:
IMPORTANT:
DO NOT change this setting to Automatic
without written permission from AERCO.
1. Press the ▲ or ▼ arrow key until Gas Pres
Reset is displayed. Automatic or Manual will
be displayed to indicate the present setting.
2. If the desired setting is not displayed, press
the CHANGE key. Gas Press Reset will
begin to flash.
3. Press ENTER to toggle the display.
4. Press BACK to exit the Gas Press Reset
function.
6.2.12 Min Off Time
The Minimum Off Time specifies the minimum
amount of time that the unit must remain off
when operating under automatic control. This
time is adjustable from 0 to 10 minutes in 1
minute increments. The default value is 1
minute. To view or change this setting, proceed
as follows:
1. Press the ▲ or ▼ arrow key until Min Off
Time is displayed. The present setting will
also appear in the display.
2. If the desired minimum off time is not
displayed, press the CHANGE key. Min Off
Time
will begin to flash.
3. Press the ▲ or ▼ arrow key to increment or
decrement the displayed until the desired
value is shown.
4. Press ENTER to store the new setting.
5. Press BACK to exit the Min Off Time
function.
Heater Tuning Display
The Heater Tuning Display function can be set
to Enable or Disable (Default = Disable). When
Enabled, it permits the Prop Band, Integral Gain
and Derivative Time functions in the Tuning
Menu to be set. See Table 2-4 for entry ranges.
6.2.14 Heater Breakpoint Display
This menu option is applicable only to Water
Heaters and can be set to Enable or Disable
(Default = Disable). When Enabled, it permits
the Heater Breakpoints listed in the Tuning
Menu (Table 2-4) to be viewed or changed.
6.3 DIAGNOSTICS PROCEDURES
The Diagnostics Menu Items listed in Table 2-6
permit the user to check the operational status
of the front panel controls indicators and
displays and the control system relays and
switches. To perform each of the following
Diagnostic procedures, first scroll to the
Diagnostics Menu using the MENU key and
press the ▲ or ▼ arrow key. Proceed to the
desired Diagnostic procedure specified in the
following paragraphs.
6.3.1 Display Test
The Display Test checks the front panel LED
indicators, 7-segment display and LED FIRE
Rate bargraph.
1. Press the ▲ or ▼ arrow key until Display
Test Off is displayed.
2. Press the CHANGE key. Display Test will
begin to flash.
3. Press the ▲ key. LEDs will be displayed and
the seven panel LEDs will light. These LEDs
are: COMM, MANUAL, REMOTE,
DEMAND, °F, °C and FAULT.
4. Press the ▲ key. 7-SEG will be displayed
and all segments of the three-digit 7-segment
display will light.
5. Press the ▲ key. Bar-graph will be displayed
and the 20 segment FIRE RATE bargraph
will light.
6.2.13
6.3.2
6. This completes the Display Test. Press the
BACK key to exit the test.
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