4 x Parameter settings
37
BA ROTEX HPSU compact 2 - 04/2011
[8] - Configuration of water heating
The parameter settings "Configuration of water heating" determine the minimum and maximum heating times for hot water and
the minimum time between two heating cycles.
The following setting options are available:
– [8-00] Minimum runtime heat pump: Sets the minimum runtime for water heating even if the target temperature of the hot
water has already been reached.
– [8-01] Maximum runtime heat pump: Sets the maximum runtime for water heating even if the target temperature of the hot
water has not yet been reached.
– [8-02] Restart time heat pump: Sets the minimum necessary interval between two hot water heating cycles (see fig. 4-7).
– [8-03] Delay time booster heater (BOH): Sets the delay time for starting up the booster heater (BOH) after starting water
heating by the heat pump (see fig. 4-8).
– If the HPSU compact has a room thermostat connected to it and it is configured, the maximum runtime
[8-01] can only be taken into consideration for the request in the operating mode room cooling or
room heating.
If the heat pump is not active in the operating mode room cooling or room heating, the water
continues to be heated by the heat pump, until the OFF temperature of the heat pump (T
HP OFF
)
(see Parameter [5]) is reached.
If no room thermostat is installed, the configuration of water heating is always taken into account.
Only with an installed booster heater (BOH):
–By adapting the delay time for the booster heater (BOH) [8-03] in comparison to the maximum runtime
[8-02], you can define an additional offset between energy efficiency and heating time.
– If the value for the delay time for the booster heater (BOH) [8-03] is set too high, it can take too long
for the water temperature to reach the required target value in operating mode water heating.
– The following rule must be observed: [8-03] < [8-01].
Fig. 4-7 Switching times of parameters [8-00], [8-01] and [8-02] Fig. 4-8 Switching time of parameter [8-03]
1 Water heating by heat pump
(0 = not active, 1 = active)
2 Water heating request
(0 = not active, 1 = active)
tTime
1 Operating the booster heater (BOH)
2 Water heating by heat pump
(0 = not active, 1 = active)
3 Water heating request to BOH
(0 = not active, 1 = active)
4 Water heating request to heat pump
(0 = not active, 1 = active)
tTime
t
1
0
1
0
1
0
[8-03]
3
4
1
0
To Next Page
Loading...
Need help?
General
