Smart Grid (Sg) - Daikin EHS157034 Operating Instructions Manual

3 x Operation

3.4.11 SMART GRID (SG)

WARNING!
There is a danger of scalding at target
hot water temperatures over 60°C. 
This is possible as the electric utilities
company (EVU) is entitled to control the
electricity consumption optimally in
accordance with supply and demand in
the SMART GRID regulations.
Due to the forced charging, the target hot
water temperature in the hot water
storage tank can reach over 60°C.
This storage tank charging even takes
place when the "Standby" operating
mode it set.
● Install scald protection in the hot
water distribution line (e.g. VTA32,
15 60 15 + Screw connection
set 1", 15 60 16).
You will need a special electric meter with an SG receiver for this
function, and the Daikin Altherma EHS(X/H) must be connected
to it.
As soon as the function is activated by the parameter [SMART
GRID] = 1, the heat pump is moved to an operating mode in ac-
cordance with tab. 3-10, depending on the signal from the energy
supply company.
2)
Signal Cost of
electricity
EVU SG
1 0 - - -
0 0 normal Normal operating
0 1 low The switch-on rec-
ommendation and
set value storage
tank temperature is
increased, depend-
ing on the parameter
1 1 very Switch-on command
low and set value of stor-
age tank tempera-
ture is set to 70 °C
1) No frost-protection function (see section 3.6.5).
2) Switch contacts at input J8 of the circuit board RoCon BM1 closed (1) or
opened (0).
Tab. 3-10 Utilisation of the SG signal
More detailed explanations and possible setting values for this function can be seen
in chapter 6.2.1.
Operating instructions
20
Effect on
Hot water Heating
No operating No operating
1) 1)
mode mode
Normal operating
mode mode
The switch-on rec-
ommendation and in-
flow target
temperature are in-
creased depending
on the parameter
[Mode SG] [Mode SG]
Switch-on command
for storage tank
charging
3.5 Special functions
In the "Special Level" we can carry out various different func-
tions that are usually used by the heating expert.
The following special functions are possible:
– Manual mode (see section 3.5.1).
– Message display (see section 7)
– Resetting to factory settings (see section 3.6.12)
More detailed explanations of these functions can be found in chapter 6.11.
The call-up of special functions does not depend on the
setting on the rotary switch.
● Depress the exit button for at least 5 secs.

Menu "Special Level" is displayed.
● Select the programme to be started with the rotary switch.
● Confirm the changes with a brief push of the rotary switch.

The selected programme starts.
● Cancellation and jump back by:
– Pressing the exit button again, or
– Briefly pressing the rotary switch or
– selecting a different menu using the rotary switch.
3.5.1 Manual Operation
Manual Operation is used to regulate the Daikin
Altherma EHS(X/H) manually to a specific flow temperature. 
The manual mode should only be used for diagnostic purposes.
With hydraulically controlled priority operation for the hot water
generation you must make sure that the inflow target temperature
set in manual mode is adequate to achieve the stored hot water
set temperature (parameter [T-DHW Setpoint 1]).
● Depress the exit button for at least 5 secs.

Menu "Special Level" is displayed.
● Select the programme "Manual Operation" with the rotary
switch.
● Confirm the changes with a brief push of the rotary switch.

"Manual Operation" active.
● Set the inflow target temperature with the rotary switch.
Do not confirm the setting with the rotary switch,
as this will close the programme.

During active manual mode the hot water is consistently
regulated to the parameter value for the first target hot
water temperature ([T-DHW Setpoint 1]).

The button block (if it was activated from the start of this
function), is activated again within 2 seconds in order to
prevent inadvertent termination of the function by operat-
ing the Controller RoCon HP.
● Cancellation and jump back by:
– Pressing the exit button again, or
– Briefly pressing the rotary switch or
– selecting a different menu using the rotary switch.

If the manual mode is closed, the Controller RoCon HP
automatically switches to the operating mode "Standby".
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016