An audible alarm sounds if the temperature rises to this limit.
Parameter “P 27"- Alarm Hysteresis (Default = “2”)
Audible alarm hysteresis (differential).
Parameter “P 28" - Alarm Delay (Default = “60 min.”)
Time at the alarm limit before the audible alarm is sounded.
Adjusting “setpoint” and “differential” on the Standard Thermostat and ECM Controller
This section describes how to adjust the setpoint and differential back to factory default settings.
You do not need to do any of the above programming instructions to adjust the setpoint or
differential. The controls delivered to you are set at factory settings (described below) and your
system will operate very well under these settings. For an explanation of how to fine tune the
setpoint and differential, see the following section, “Optimizing Settings for Maximum Efficiency.”
To alter the “setpoint” (ie. The compressor turns OFF at this temperature)
● Press and hold down the “SEL” Key until “St 1” is displayed - then release the
Key.
● The number flashing is the current setpoint setting. To change it, use the Arrow
Keys to scroll to the desired number.
● Press “SEL” then “PRG” to retain the new setting.
● NOTE For ECM controllers - After entering the “St 1" setpoint parameter and
pressing the “SEL” key, you will be prompted to also enter the “St2" setpoint.
After entering it, simply press the “SEL” Key again then press the “PRG Key to
retain both settings. The setpoint for both “St 1" and “St 2" should always be
entered as the same number.
● The factory default setting for “St 1" and “St 2" is -16 (-27
0
C) for the freezer and
+22 (-6
0
C) for the refrigerator. The default is 74
0
F (23
0
C) for Arctic Air.
To alter the “differential” setting (ie. The compressor turns ON at the “differential + setpoint”)
● Press and hold down the “PRG” Key until “P 1" is displayed then release the Key.
● Press the “SEL” Key to display the current differential setting.
● Use the ARROW Keys to scroll to the desired number.
● Press “SEL” then “PRG” to retain the new setting
● Note For ECM controllers - After entering the new “P 1" differential parameter and
pressing the “SEL” Key, you may use the ARROW Keys to scroll to the “P 2"
parameter. Once “P 2" is displayed, you may enter this parameter by pressing
“SEL”. After both “P 1" and “P 2" have been entered, press “PRG” to retain the
new settings. Remember that the “P 1" setting is active in normal mode and the
“P 2" setting is active in “engine-drive” mode. Therefore, “P 1" will always be a
larger number than “P 2".
● The factory default setting for “P 1" is +16 (9 for
0
C) for the freezer, +8 (4.5 for
0
C) for the refrigerator and +6 (3.3
0
C) for Arctic Air. The factory default setting
For “P2" (ECM only) is +12 (6.7 for C
0
) for the freezer and +4 (2.2 for C
0
) for the
refrigerator.
Page 49
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales