3
x
Operation
FA ROTEX RoCon mb • 09/2017
19
●
Use the rotary button to select the [Quite Mode] parameter.
●
Confirm the selection with a brief push of the rotary button.
The setting of the parameter is displayed.
●
Set the parameter.
– Parameter [Quite Mode] = 0: deactivated
– Parameter [Quite Mode] = 1: permanently activated
– Parameter [Quite Mode] = 2: only activated at night
●
Confirm the selection with a brief push of the rotary button.
Change has been accepted. Jump back to previous dis-
play.
Detailed explanations and possible setting values of this function can be found in
chap. 6.2.2.
3.4.12 Smart Grid (SG)
A special electricity meter with SG receiver, to which the ROTEX
HPSU monobloc compact must be connected, is required to use
this function.
As soon as the function is activated by the parameter [SMART
GRID] = 1, the heat pump is set to an operating mode as per
tab. 3-10 depending on the utility company signal.
1)
No frost protection function (see chap. 3.6.5).
2)
Switching contacts at input J8 of the RoCon BM1 printed circuit board closed
(1) or opened (0).
Tab. 3-10 Use of the SG signal
Detailed explanations and possible setting values of this function can be found in
chap. 6.2.1.
3.4.13 EHS emergency operation
If the heat pump fails, the backup heater can be used as emer-
gency heating, and can undertake all heating requirements either
automatically or non-automatically.
Activating / deactivating emergency automatic
operation
●
Set the rotary switch to the
"Configuration"
position.
An overview is displayed.
●
Use the rotary button to select the
"Setup"
level.
An overview is displayed.
●
Use the rotary button to select the [Emergency BUH]
parameter.
●
Confirm the selection with a brief push of the rotary button.
The setting of the parameter is displayed.
●
Set the parameter.
– Parameter [Emergency BUH] = 0: no automatic emer-
gency operation
– Parameter [Emergency BUH] = 1: automatic emergency
operation
●
Confirm the selection with a brief push of the rotary button.
Change has been accepted. Jump back to previous dis-
play.
WARNING!
There is a danger of scalding at target hot water
temperatures over 60 °C. This is possible, as
the utility company (EVU) is entitled to control
current draw optimised according to supply and
demand in the definitions for Smart Grid.
Due to such forced charging, the target hot
water temperature in the hot water storage tank
can exceed 60 °C.
This storage tank charging is carried out even
when "Standby" operating mode is set.
●
Install scald protection in the hot water distri-
bution line (e.g. VTA32,
15 60 15 + Screw
set 1",
15 60 16).
Signal
2)
Electric-
ity costs
Effect on
EVU
SG
Domestic hot
water
Heating installa-
tions
1
0
- - -
No operation
1)
No operation
1)
0
0
Normal
Normal operation
Normal operation
0
1
Low
Switch-on recom-
mendation, and tar-
get storage tank
temperature value is
increased depending
on the parameter
[Mode SG]
Switch-on recom-
mendation, and tar-
get feed temperature
is increased depend-
ing on the parameter
[Mode SG]
1
1
Very low
Switch-on command,
and target storage
tank temperature val-
ue is set to 70 °C
Switch-on command
for storage tank
charging
Activation of emergency automatic operation ensures
that heating and hot water requirements are reliably
met even if the heat pump fails. However, the risk is run
that the user only notices the system malfunction after
a certain time, and that electricity consumption is thus in-
creased.
If emergency automatic operation is deactivated (default
setting), it must be activated as described below to meet heating
and hot water requirements in the event that the outdoor unit
fails.
