Bedienungsanleitung Kaysun COMPAK KHP (Seite 13 von 23) (Englisch)

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Installation & Owner's Manual

Emptying

Drainpipe shut-off valve

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.

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