Table of Contents
Advertisement
Modes will be automatically selected by unit. manually mode
3)
selection is unavailable.
Running Temperature Range
Setting water temperature target range: 38~70ºC.
E-heater running ambient temperature range: -20~45ºC.
Heat pump running ambient temperature range: -7~43ºC.
Water temperature limits:
Ambient
T4 -7
-7 T4 -2 -2 T4 2
Temp.(T4)
Max.Temp.
--
(Heat pump)
45
Max. Temp.
70
70
(E-heater)
Heat Source Shift
4)
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(
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 firstly 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.
E-heater will be activated once for the current heating progress,
if want to apply E-heater again, plsease push
If system occurs some malfunctions, error code "E7" and
be shown on the display, then heat pump will stop running, and
the unit will activate automatically E-heater as the backup heat
source, but the code "E7" and
If only use E-heater, about only 75 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.
Heat-up Time
There are different heat-up times in different ambient
temperature. Normally lower ambient temperature result longer
heat-up time because of lower effective performance.
T4 43
60
70
70
70
) on the display, then if the ambient
NOTE
.
will be shown until power off.
NOTE
12
10
8
6
4
Table.4-1
2
43 T4
0
-7
-5
--
When ambient temp below 2
70
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.
About TCO and ATCO
The power of compressor and E-heater will be automatically
shut-off or turn on by TCO and ATCO.
If the temperature is higher than 78
cally shut off the power of compressor and E-heater, and turn on
it if the temperature fall down below 68 .
If the water temperature is higher than 85
automatically shut off the power of compressor and E-heater.
After that it needs to be reset manually.
Restart After a Long Term Stop
When the unit is restarted after a long term stop(trail running
included), it is normal that outlet water is unclean. Keep the tap on
and the water will be clean soon.
While the ambient temperature below than -7
efficiency will decrease dramatically, the unit will automatically
shift to E-heater running.
4.2.3 Basic function
will
1)
Weekly disinfect function
Under disinfection unit immediately start to heat water up to 65
to kill the potential legionella bacteria inside water of tank,
icon will be lightened on the display screen during disinfection;
Unit will quit disinfection if water temperature is higher than 65
and extinguish
2)
Vacation function:
After pressing
to 15
Rmote shutdown function:
3)
Users can connect a switch.If the switch is closed, the unit will be
stopped forcibly.If switch breaks, the unit can run normally
according settings.
4)
How is the unit running:
If unit is OFF->press
to set target water temperature(38-70 )->press
will automatically select heat source and start to heat water to
target temperature.
2
7
20
25
30
32
Ambient temp(°C)
heat pump and E-heater will
NOTE
icon.
button, Unit will automatically heat water
for the purpose of energy saving during vacation days.
->unit will be waken->press
ON/OFF
15-45
15-55
15-65
15-70
35
40
45
Fig.4-4
, the ATCO will automati-
, the TCO will
, heat pump
->unit
11
Advertisement
Table of Contents
