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Kaysun COMPAK KHP Manual

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Installation & Owner's Manual
10
Emptying
Drainpipe shut-off valve
Close
After emptying, please replace the nut of
drainpipe.
Tank
Temperature sensor(T5U)
Electric heater
Water inlet
Water outlet
Temperature sensor(T5L)
Fig.4-2
4.2 Trial- running
4.2.1 Checking list before commisionning.
1) Checking list before trial-running.
2) Correct installation of the system.
3) Correct connection of water/air piping and wiring.
4) Condensate draining smoothly well insulation work for all
hydraulic part.
5) Correct power supply.
6) No air in the water pipeline and all valves opened.
7) Effective electric leakage protector installation.
8) Sufcient inlet water pressure (between0.15MPa and
0.65MPa).
4.2.2 About Running
1) System Structure Figure
Unit has two kinds of heat sources: heat pump(compressor)
and electric heater.
Unit will automatically select heat sources to heat water to
the target temperature.
Fig.4-3
2) Water Temperature Display
The temperature shown on the display depends on the upper
sensor. So it is normal that the display temperature has reached
to target temperature but compressor still running, because the
lower water temperature does not get to target temperature.
3) Heat source will be automatically selected by unit. But manually
E-Heater operation is available.
● Running Temperature Range
Setting water temperature target range: 38~65°C (70ºC during
disinfect mode by e-heater)
E-heater running ambient temperature range: -20~43ºC.
Heat pump running ambient temperature range: -7~43ºC.
Water temperature limits:
Table.4-1
Model COMPAK KHP 35/300 ACS1
Ambient
Temp.(T4) T4<-7 -7≤T4<-2 -2≤T4<2 2≤T4<7 7≤T4<43 T4≥43
Max.Temp.
(Heat pump) -- 42 47 55 65 --
Max. Temp.
(E-heater) 70 70 70 70 70 70
4) Heat Source Shift
● The default heating source is heat pump.
If ambient is range out of heat pump, heat pump will stop
running, the unit will shift automatically to activate E-heater
and show the icon LA( ) on the display, then if the ambient
temperature goes into the running range of heat pump again,
it will stop E-heater and shift automatically to heat pump again,
and the icon LA( ) will be extinguished.
● If the target setting water temperature is higher than Max.
temp(Heat pump), the unit will activate heat pump rstly to the
Max. temperature, then stop heat pump, activate E-heater to
continually heat water to the target temperature.
● If manually activate the E-heater running when heat pump
running, E-heater and heat pump will work together until the
water temperature gets to target temperature. So if want to heat
quickly, please manually activate E-heater.
NOTE
● E-heater will be activated once for the current heating
progress, if want to apply E-heater again, plsease push
again.
● If only use E-heater, about only 150 liters water will be
heated, so must set higher target water temperature if
ambient temperature is out of heat pump running range.
● Defrosting During Water-heating
In heat pump running period, if the evaporator frosted in lower
ambient temperature, the system will defrost automatically to
keep effective performance(about 3~10min). At defrosting time,
the fan motor will stop, but compressor will still run.
● COP
There is different COP in different ambient temperature.
Normally lower ambient temperature result longer heat-up time
because of lower effective performance.
● When ambient temp below 7°C heat pump and E-heater will
take different portions of heating capacity, generally the lower
of ambient temperature, the lower portion of heat pump will be
taken as well as the higher portion of E-heater will account for.
More detail please refer to Table.4-1 and Table.4-2.
… 13 …


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