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Page 9
V / Built in Safeguards
KwiKool is proud to provide its customers with high quality features and safety devices
that are not found in most other brands.
turning the unit on, unless your set point is higher than the current room tempera-
ture. In this case your unit is ready to automatically turn on once the temperature
drops below the set point. If the unit was recently turned off or the unit turned itself
off because it reached the set point, the compressor will not turn on until the
system waits for approximately 2 minutes. This prevents the compressor from
being damaged do to a condition called short cycling. The indicator that the unit is in
the “time out” condition is that the F (or C) in the display will be flashing. When the
compressor starts, the F will stop flashing and “HEAT” will begin flashing. NOTE:
that the supply air fan will not start immediately with the compressor and once the
supply air fan starts and air is blowing in and if the ambient temperature entering the
make-up air for the return is below 75 degrees F you may notice the supply air fan
cycling on and off, this is normal. The colder the temperature is the longer the off
cycle will be.
HEAT/COOL - If the unit was previously set to the Heat/Cool mode then “Heat &
Cool” will be displayed. The system functions as described above in the mode
required based on a 2 degree temperature differential. Your KwiKool automatically
selects the mode needed to maintain the set point, and the operating function
flashes on and off while operating and the standby mode stays solid.
FAN - If the unit was previously set to the fan mode then “FAN” will be displayed
and the supply air fan will start to run.
Time Delay - Protects your KwiKool from potential damage by delaying the compres-
sor from starting before the pressures in the mechanical system equalize. This always
activates when your KwiKool cycles off, is turned off, power is lost and then restored or
the operational mode is changed. Display flashes C or F if the time delay is activated.
Fan Cycling - Part of your KwiKool limited freeze protection and works by regulating
the air flow to keep the refrigerant pressures at the optimum range.
High-Pressure Switch and Alarm - Protects your KwiKool System from potential
damage to the mechanical system by shutting down, sounding an audible alarm and
displaying a fault code (HP) when the system pressure exceeds safe operating condi-
tions. The high pressure switch is a manual reset switch and must be reset after the
switch is activated and the condition causing the trip is corrected.
Low Pressure Switch and Alarm - Protects your KwiKool from potential damage
to the mechanical system by shutting down the system, sounding an audible alarm and
displaying a fault code (LP) when the low side pressure is too low. This is normally
caused by low refrigerant charge. This switch is an automatic reset.
Automatic Restart - In the event of a power loss your KwiKool System resumes
operation when the power is restored. All operational functions are preserved in the
memory of the Microprocessor Board including the ON/OFF selection.
Condensate Pump & High Level Alarm - All KPHP models are factory equipped
with an internal high lift condensate pump. KwiKool condensate pumps are able to pump
B.
A.
C.
D.
E.
F.
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5.
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