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Kaysun COMPAK KHP Manual

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Installation & Owner's Manual
15
No Icon Description
In vacation period, the setting target water
temperature is 15°C as default and will show the
remanent vacation days. On the last day of vacation,
unit will automatically start disinfect function, and
automatically reset the target temperature to the last
one before vacation.
If unit has already been in vacation or OFF, press
will lead to show invalid icon on the
display.
5.3 Combination button
No Icon Description
Clear
error
code
+
Press the two buttons at the same
time to clear all stored error &
protect codes, and the buzzer will
buzz one time.
Query +
Press the two buttons at the same
time for 1sec to go into querying.
On
querying user can check unit
setting & running parameters
by pressing circularly.
Press button for 1s or no
button operation for 30s, then quit
querying.
5.4 Auto-restart
If electricity power failed, unit can memorize all setting parameters,
unit will be back to the previous setting when power recover.
5.5 Button Auto Lock
When there is no operation of button for 1 minute, button will be
locked except Unlock button , Press for 3s, unlock
buttons.
5.6 Screen Auto Lock
If there is no operation of button for 30s, screen will be
locked(extinguished) except for error code and alarm icon.
Press any button will unlock the screen(lighten).
6. TROUBLE SHOOTING
6.1 Non-error tips
Q: Why compressor can't start immediately after setting?
A: Unit will wait for 3 minutes to balance the pressure of system
before starting compressor again, it's a self protection logic of
unit.
Q: Why sometimes the temperature shown on the display panel
decreased while unit is running?
A: When the upper tank temperature is much higher than the
bottom part, upper part hot water will be mixed by the bottom
cold water which is continually ow from inlet tap water so that
will decrease the upper part temperature.
Q: Why sometimes the temperature shown on the display
decreased but unit still keep closed?
A: To avoid unit ON/OFF frequently, unit will activate heat source
only when bottom tank temperature is lower than setting
temperature or max. temperature for at least 5 ºC.
Q: Why sometimes the temperature shown on the display will
decreased dramatically?
A: Because tank is pressure-bearable type, if there is massive hot
demand, hot water will quickly tapped out from upper part of tank
as well as cold water will quickly tapped into bottom part of bank
if the cold water surface emerge the upper temperature sensor,
temperature shown on the display will decreased dramatically.
Q: Why sometimes the temperature shown on the display is decreased
a lot, but there is still a mount of hot water can be tapped?
A: Because the upper water sensor is located on the upper 1/4
tank, when display temperature starts falling down quickly, it
means there is at least 1/4 tank of hot water available.
Q: Why sometimes unit shows "LA" on display ?
A: The heat pump available running ambient range is -7-43°C, if
ambient temperature is out of range, system will show above-
mentioned signal to let user notice it.
Q: Why something there is nothing shown on the display?
A: To maintain display screen lifespan within along term, when
there is no button operation for 30 sec, it will extinguwish the
display except the LED indicator.
Q: Why sometimes the buttons are unavailable?
A: If there is no operation on panel for 1 min, unit will lock the
panel, shows " ", to unlock the panel, please press the
"ENTER" button for 3 seconds.
Q: Why sometimes there is some water owed from drainage pipe
of PTR valve?
A: Because the tank is pressure-bearable one, when water is
heated inside the tank, water will expand, so the pressure inside
of tank will increase, if pressure goes up more than 1.0MPa,
PTR valve will activate to relief the pressure and hot water drop
will be discharged correspondingly. If water drop is continually
discharged from PTR valve drainage pipe, it is abnormal, please
contact qualied stuff to repair.
6.2 Something about self-protection of unit
1) When the self-protection happens, the system will be stopped
and start self-check, and restart when the protection resolved.
2) When the self-protection happens, the buzzer will buzz in every
other minute, the will ash and error code will be shown at
water temperature indicator. Press button for 1sec to
stop buzz, but the and error code does not disappear until
protection resolved.
3) In the following circumstance, self-protection may happen:
Air inlet or outlet is blocked;
The evaporator is covered with too much dust;
Incorrect power supply(exceeding the range of 220-240V).
6.3 When error happened
1) If some normal errors happen, unit will automatically shift to
E-heater for emergent SHW supply, please contact qualied
staff to repair.
2) If some sever errors happen, unit will not start, please contact
qualied staff to repair.
3) If some errors happen, the buzzer will buzz 3 times every other
minute and the will ash fast. Press for 1 sec to stop
the buzzer but the alarm icon will keep glittering.
… 18 …


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