Function; Mode - Daikin RoCon+ HP Betriebsanleitung

4

Function

The system fully automatically controls the operation of the room
heating, room cooling and domestic hot water generation on the san-
itary side on the basis of the specifications set in the RoCon+ HP
control system. The functions that can influence system operation
are described below.
Some of the functions and parameters described are restricted by
access privileges and can only be set by a heating specialist (see
Chap. 4.5.1).
4.1

Mode

[→ Main menu → Operating mode]
This menu is used to select the operating mode for operating the
device. The current operating mode is indicated by a corresponding
symbol on the start screen.
Standby operating mode
NOTICE
A heating system that is not protected against frost can
freeze in the event of frost and thus be damaged.
▪ Drain the heating system on the water side if there is a
danger of frost.
▪ If the heating system is not drained, the power supply
must be ensured and the mains switch must remain
switched on if there is a risk of frost.
In this mode, the Daikin Altherma EHS(X/H) is switched to standby
mode. The frost protection function remains unchanged. In order to
maintain this function, the system may not be disconnected from the
mains.
All controllers integrated in the RoCon system via the CAN bus are
primarily also switched to the "Standby" operating mode.
INFORMATION
In the [Standby] mode, the heat pump and the optionally
connected backup heater are disconnected from the power
supply (energy-saving mode) if the following conditions are
met:
▪ the external temperature sensor is connected and cor-
rectly parametrised in the system configuration,
▪ the external temperature is more than 8 °C
▪ there is no heating requirement,
▪ the frost protection function is not active in any connec-
ted HC and
▪ the Daikin Altherma EHS(X/H)has been switched on for
at least 5 minutes.
ModeReducing
Reduced heating operation (lower room setpoint temperature) ac-
cording to the set reduction temperature in the [Room temperature
reduced] parameter (see Chap.
Domestic hot water generation according to the temperature set-
points and switching cycles in the [Hot water automatic 1] hot water
time program (see Chap. 4.2).
ModeHeating
Heating, cooling mode according to the room temperature setpoint
set in the [Room temperature setpoint 1] parameter (see
A connected external temperature sensor (weather-dependent feed
temperature control unit) or a connected room control unit also influ-
ence the temperature setpoint.
Daikin RoCon+ HP
Daikin Controller RoCon+ HP
008.1444299_01 – 09/2018 – EN
4.2).
Chap. 4.2).
Domestic hot water generation according to the feed temperature
setpoints and switching cycles in the [Hot water automatic 1] hot wa-
ter time program (see Chap. 4.2).
ModeSummer
Only domestic hot water is generated according to the set temperat-
ure setpoints and switching cycles in the [Hot water automatic 1] hot
water time program (see Chap.
All controllers integrated in the RoCon system via the CAN bus are
also switched to the higher-level [Summer] mode.
Mode Automatic 1 (time program)
Automatic heating and setback mode according to the permanent
time programs (see Chap. 4.3):
▪ [Heating circuit automatic 1]
▪ [Hot water automatic 1]
Mode Automatic 2 (time program)
Automatic heating and setback mode according to the permanent
time programs (see Chap. 4.3):
▪ [Heating circuit automatic 2]
▪ [Hot water automatic 2]
INFORMATIONSWITCHING CONTACT FOR EXTERNAL
OPERATING MODE CHANGEOVER
Switching can also be performed from an external device
(e.g. modem, ...) via a floating switching contact connected
to terminal J8 of the Daikin Altherma EHS(X/H) to the "Ext"
terminals. See Tab. 4-1.
In this case, the switching contact functionality is depend-
ent on the parameter [Func. burner blocking contact]:
▪ [Func. burner blocking contact] = Resistance values (de-
fault setting): Evaluation of the resistance values.
▪ [Func. burner blocking contact] = Burner blocking con-
tact: Evaluation as a burner blocking contact. If the
switching contact is closed, the external heat generator
has priority.
Mode Resistance
Standby
Heating
Reducing
Summer
Automatic 2
Automatic 2
Tab. 4-1 Resistance values for evaluating the EXT signal
INFORMATION
The resistances specified in
ance field of 5%. Resistances outside this tolerance field
are interpreted as an open input. The heat generator
switches back to the previously active operating mode.
The input is not considered for resistance values greater
than the value for "Automatic 2".
If several switching contacts are connected to the Daikin
Altherma EHS(X/H) (e.g. smart grid, room thermostat), the
associated functions may have a higher priority than the
external mode switching. The mode requested by the EXT
switching contact is then possibly not activated or is only
activated later.
Besides these operating modes, different temporary time programs
(see Tab. 4-2) are available that are carried out with priority after ac-
tivation.
4 Function
4.2).
Tolerance
< 680 Ω ±5%
1200 Ω
1800 Ω
2700 Ω
4700 Ω
8200 Ω
Tab. 4-1 function in a toler-
Operating Instructions
13