EDM SYSHP MINI SPLIT TANK

49
Compressor
Abbreviaons:
T5: DHW tank water temperature
T5S: DHW set temperature
Time
Abbreviaons:
T5: DHW tank water temperature
T5S: DHW set temperature
T5stop: DHW mode leaving water temperature operang limit
TBH: Immersion heater in DHW tank
DHW mode operaon
T4DHWMAX and T4DHWMIN
Abreviaons:
HP: Heat pump
TBH: DWH tank immersion heater
AHS: Addional heang source
Only when the space heang/cooling is OFF will the heat pump operate to heat domesc water.
DHW PUMP sets whether or not the DHW pump is controlled by the Heat Pump Split unit. If the DHW pump is to be controlled
by the Heat Pump Split, select YES. If the DHW pump is not to be controlled by the Heat Pump Split unit, select NON.
DHW PUMP PRIORITY TIME SET set the operaon me of DHW during DHW PRIORITY mode.
dT5_ON sets the temperature dierence between the DHW set temperature (T5S) and the DHW tank water temperature (T5)
above which the heat pump providing heated water to the DHW tank. When T5S - T5 ≥ dT5_ON the heat pump providing heated
water to the DHW tank.
Note: When the heat pump’s leaving water temperature is
above the DHW mode leaving water temperature operang
limit (T5stop), the heat pump does not provide heated water
to the DHW tank.
dT1S5 sets the heat pump’s leaving water set temperature
(T1S) relave to DHW tank water temperature (T5). For DHW
mode, the user sets the DHW set temperature (T5S) on the
main screen and cannot manually set T1S. T1S is set as T1S =
T5 + dT1S5.
Figure on the right illustrates the operaon of the heat pump
and immersion heater(oponal) in DHW mode. If the DHW
tank water temperature (T5) is less than the minimum of the
DHW set temperature (T5S) and the heat pump leaving water
temperature operang limit (T5stop) less dT5_ON, the heat
pump starts providing heated water to the DHW tank. Aer
t_TBH_delay minutes have elapsed, the immersion heater is
turned on. If T5 reaches T5stop, the heat pump stops but the
immersion heater connues running unl T5 has reached T5S
+ dT5_TBH_OFF
T4DHWMAX sets the ambient temperature above which the
heat pump will not operate in DHW mode. The highest value
that T4DHWMAX can take is 43°C, which is the DHW mode
upper ambient temperature operang limit of the heat pump.
T4DHWMIN sets the ambient temperature below which the
heat pump will not operate in DHW mode. The lowest value
that T4DHWMIN can take is -25°C, which is the DHW mode
lower ambient temperature operang limit of the heat pump.
t_INTERVAL_DHW sets the DHW mode compressor re-start
delay. When the compressor stops running, it will not re-start
unl at least t_INTERVAL_DHW minutes have elapsed.
dT5_TBH_OFF sets the temperature dierence between
the DHW set temperature (T5S) and the DHW tank water
temperature (T5) below which the immersion is not used.
When T5 > Min(T5Stop+dT5_TBH_OFF, 65°C), the immersion
heater is o.
Compressor
Time
dT5_ON
Heat by TBH or AHS Heat by heat pump