4-7
INITIAL START-UP
CONTROL
or
Display
MEANING
FUNCTION
LED Display
TEMP status
Displays current
water
temperature or
setpoint.
RST
RESE
T
Button
Resets the
unit after an
alarm
condition.
UP Button
Increases
the
displayed
temperature
DOWN
Button
Decreases
the
displayed
temperature.
SET
SET Button
Used to access
and store
parameters in the
unit.
Table 4-2:
Digital Alarm Switch Controls and Display
Perform the following steps to check or adjust
the digital alarm switch settings:
1. Set the
ON/OFF
to the ON position.
2. Press the
SET
button on the Digital Alarm
Switch.
SP
will appear in the display.
3. Press the
SET
button again. The current
over-temperature limit value stored in
memory will be displayed. (default = 210°F).
4. If the display does not show the required
over-temperature alarm setting, press the
▲
or
▼ arrow button to change the display to
the desired temperature setting.
5. Once the desired over-temperature alarm
setting (210ºF) is displayed, press the
SET
button to store the setting in memory.
6. To calibrate the offset (P1), press and hold
the
SET
button for 8 seconds on the Digital
Alarm Switch. Access code value 0 should
appear in the display. The switch comes
from the factory with the code set at 0.
AERCO recommends that you do not
change this code.
7. Press the
SET
button again to enter the
code. The first parameter label (
SP
) will
appear in the display.
8. Using the
▲ and ▼ arrow keys, select
parameter P1.
9. Press
SET
to view the value stored in
memory.
10. If the desired value is not displayed, modify
the setting using the
▲ and ▼ arrow keys.
The value can be changed from -10° to +10°
offset. Press
SET
to enter the value and exit
to the text parameter.
11. To exit the programming mode, press the
SET
and
▼ buttons simultaneously, or
simply wait one minute and the display will
automatically exit the programming mode.
12. Once the programming mode has been
exited, the display will show the current
outlet water temperature of the boiler.
Summary of Contents for Benchmark 3.0LN Series
Page 6: ...iv ...
Page 8: ...B ...
Page 42: ...INITIAL START UP 4 8 ...
Page 80: ...A 6 ...
Page 84: ...B 4 ...
Page 86: ...C 2 APPENDIX C ...
Page 93: ...APPENDIX F APPENDIX F F 1 ...
Page 94: ...APPENDIX F F 2 ...
Page 95: ...APPENDIX F F 3 ...
Page 96: ...APPENDIX F F 4 ...
Page 97: ...APPENDIX F F 5 ...
Page 98: ...APPENDIX F F 6 ...
Page 99: ...APPENDIX F F 7 66034 ...
Page 100: ...APPENDIX F F 8 ...
Page 101: ...APPENDIX F F 9 ...
Page 102: ...APPENDIX F F 10 ...
Page 103: ...APPENDIX F F 11 ...
Page 104: ...APPENDIX F F 12 ...
Page 105: ...APPENDIX F F 13 ...
Page 106: ...APPENDIX F F 14 ...
Page 107: ...APPENDIX G APPENDIX G G 1 ...
Page 108: ...APPENDIX G G 2 ...
Page 109: ...APPENDIX G G 3 ...
Page 110: ...APPENDIX G G 4 ...
Page 111: ...APPENDIX G G 5 ...
Page 112: ...APPENDIX G G 6 ...
Page 113: ...APPENDIX H APPENDIX H H 1 ...
Page 114: ...APPENDIX H H2 ...
Page 115: ...APPENDIX H H 3 ...
Page 116: ...APPENDIX H H 4 ...
Page 117: ...APPENDIX H H 5 ...
Page 118: ...APPENDIX H H 6 ...
Page 119: ...APPENDIX H H 7 ...
Page 120: ...APPENDIX H H 8 ...
Page 122: ...APPENDIX I I 2 ...
Page 126: ...NOTES ...
