Rotex HPSU compact 508 Instruction Manual page 35

[6] - Hysteresis (DT) for water heating
The parameter settings [6-XX] determine the temperature limits at which heating the hot water is started and stopped by the
heat pump (ON temperature and OFF temperature of the heat pump).
If the water temperature falls below the ON temperature of the heat pump (T
is started.
As soon as the hot water temperature reaches the OFF temperature of the heat pump (T
(TU), heating the water with the heat pump is stopped (the switch unit switches to room heating or the heat pump stops heating).
The following setting options are available:
– [6-00] Start: Temperature difference that determines the ON temperature of the heat pump (T
– [6-01] Stop: Temperature difference that determines the OFF temperature of the heat pump (T
>
Fig. 4-5
BA ROTEX HPSU compact 2 - 04/2011
View of the control system for water heating with the heat pump
<
4 x Parameter settings
), heating the hot water with the heat pump
HP ON
) or the user target temperature
HP OFF
).
HP ON
).
HP OFF
T Water temperature
T
HP MAX
Maximum water temperature of the heat pump
at the temperature sensor in the hot water
storage tank (55°C)
T
HP OFF
OFF temperature of the heat pump
T
HP ON
ON temperature of the heat pump
T Target temperature for hot water (as set on
U
main control unit (HPR1))
35