45
case c i) Ts = 50°C and T4 = 3°C than Tstop = 55°C
T5U < min (45 ; 50) T5U < 45°C
ii) : Ts = 50°C and T4 = -3°C than Tstop = 42°C
T5U < min (45 ; 37) T5U < 37°C
2) When in below condition, the the heat pump stop:
T5L
≥
min (Ts ; Tstop)
Example :
i) : Ts = 50°C and T4 = 3°C then Tstop = 55°C
T5L
≥
min (50 ; 55) T5L
≥
50°C
Water is heated only by
Heat Pump, until T5L reaches the
desired temperature (50°C)
Water is heated only by Heat Pump, until T5L
reaches the stop-temperature (42°C).
Now heat pump stops and
the unit automatically
activates the resistance “E-heater” to reach
the desired temperature (50°C).
