S:\Koldwave\Kompac 4-Series IOM
Koldwave 4830 Transport Drive Dallas, Texas 75247
www.koldwave.com www.mestekparts.com
10
heating mode, the compressor will only be
energized if the temperature is at least 2
degrees below the set point, and de-
energized once the temperature rises to 2
degrees above the set point. User is able to
manually change the temperature differential
(default set at 2) by depressing both UP and
DOWN arrow key and then adjust UP and
DOWN arrow to set the differential from 1-
4 degrees. After 3 seconds, it will return to
the room temperature reading.
Compressor Off Time:
Our compressor routine guarantees a 5-
minute minimum off time on the
compressor, and it will not energize until the
5-minute off time has been satisfied.
Self Recovery Mode (*):
Our unit controller is equipped with self-
recovery mode that with any sudden power
interruption, the set point and operating
mode are stored in memory and the unit will
retain these settings and resume operation
once power is restored. When the self-
recovery mode is enabled the decimal point
on the second character on the LED display
is always On. If self-recovery mode is not
enabled that the second decimal point is
always Off. However, the user is able to
enable the “Self Recovery Mode” by
depressing the OFF button for “5 seconds”
and then adjust the setting from the arrow
key.
A0 – Self-Recovery Mode “off” (Factory
Default Setting)
A1 – Self-Recovery Mode “on”
Check Alarms:
The controller will monitor and check the
status of four alarm signals:
1. Alarm_High_Press (E.H),
2. Alarm_Low_Press(E.L),
3. Alarm_Freeze (E.F),
4. Alarm_Temperature_Sensor (E.S).
When E.F, or E.S alarm is present, the
Power LED will blink, signaling that the
alarm condition is present and unit will lock
out. Once the failure is clear, press the OFF
button, the Power LED will stop blinking
and room temperature will display.
Auto Reset High/Low Pressure switch:
If the High Pressure/Low Pressure Switch
trips, "H.P/L.P" is displayed until the failure
clears. Once failure clears the unit goes
back to the previous mode it was in before
the trip. If the High Pressure Switch trips 3
times within 30 minutes, the unit is locked
out, forced into the Off position, and
"E.H/E.L" is displayed on the display and
Power LED will blink, signaling that the
alarm condition is present. Once the failure
is clear, the room temperature will display
and pressing any mode button can manually
reactivate the unit.
Optional Remote Control:
The optional remote control will have the
identical function as the main unit excludes
the followings:
1. Ability to change the “temperature
differential” setting. User can only
adjust such setting through the main
unit panel.
2. Ability to enable or disable the “self
recovery mode” setting. User can
only adjust such setting through the
main unit panel.
* User is only allowed to change setting
when unit is OFF*
