Daikin RoCon+ HP Series, Operating Instructions Manual

Page: 19 / 516

4 Function
Operating Instructions
19
Daikin RoCon+ HP
Daikin controller RoCon+ HP1
008.1447899_00 – 09/2019 – EN
▪ No heat request active in the heating system's RoCon system.
INFORMATION
If the mean outside temperature falls below 4 °C when
"Cooling" operating mode is active, the operating mode
automatically switches to "Heating".
Renewed automatic operating mode switching to "Cooling"
only takes place:
▪ if a room thermostat is connected to plug connection
J16 (cooling) and
▪ the room thermostat's switching contact is closed and
▪ the mean outside temperature increases to over 10 °C
again.
Cooling curve
[→ Main menu → Configuration → Cooling → Cooling curve]
The cooling curve determines the feed target temperature in cooling
mode depending on the respective outside temperature. (for
weather-compensated feed temperature control, see
Chap. 4.5.3 ).
Warmer outside temperatures result in a colder feed target temperat-
ure and vice versa. The cooling curve can be adapted to the condi-
tion of the building by four parameters (see
Fig. 4-3 ).
1 [Start cooling outside temp.]
2 [Max. cooling outside temp.]
3 [Target flow cooling, start]
4 [Target flow cooling, max.]
Cooling parameters
[→ Main menu → Configuration → Cooling → Parameters]
This menu combines further parameters to determine target feed
temperatures in cooling mode.
During weather-dependent T-HS control, the user can increase or
decrease the target feed temperature by a maximum of 5 K with the
parameter [Cooling setpoint correction]. A temperature reduction is
limited by the [Feed temperature lower limit] parameter.
INFORMATION
If optional frost protection valves are installed in the sys-
tem, the [Feed temperature lower limit] parameter must not
be set below 7 °C.
Fig. 4-3 Cooling curve parameter dependency
1 [Start cooling outside temp.] parameter
2 [Max. cooling outside temp.] parameter
3 [Target flow cooling, start] parameter
4 [Target flow cooling, max.] parameter
5 [Feed temperature lower limit] parameter
6 Room target temperature
7 Cooling mode possible
T
A
Outside temperature
T
V
T-HS
------- Cooling curve
- - - - Possible parallel cooling curve shift
Further explanations and possible settings for the parameters in this
menu can be found in
Chap. 7.6.4 .
4.5.6 Domestic hot water
[→ Main menu → Configuration → DHW]
The domestic hot water preparation can be individually adapted to
the behaviour and requirements of the users in this menu. This min-
imises energy consumption and increases comfort.
Solar function
The [Solar function] is used to reduce the target temperature of the
hot water storage tank in order to increase the yield of a connected
solar system. The target value of the hot water temperature is set as
a function of the outside temperature and in compliance with the
safety functions. In addition, the following parameters are defined:
Hot water hysteresis= 5K; Building insulation= Normal
To activate the solar function, it must be set to "On" in the menu
[→ Main menu → Configuration → DHW → Solar function] and the
switching contact EXT (J8) must be closed.
Settings for optional circulation pump
Depending on the [Circulation pump control] parameter, an optional
circulation pump can be controlled synchronously with the selected
time program for domestic hot water preparation or with the time pro-
gram for the circulation pump (see
Chap. 4.3 ). During the release
times of the selected time program, the circulation pump can be op-
erated either continuously or cycled. This is defined with the [Circula-
tion pump interval] parameter.
Anti-legionella protection
This function is used to prevent bacterial contamination in the hot
water tank by thermal disinfection. To do so, the hot water tank is
heated 1× daily or 1× weekly to the disinfection temperature [Anti-le-
gionella temperature] depending on the [Anti-legionella day] para-
meter. Disinfection starts at the specified start time [Anti-legionella
start time] and is active for one hour. An optionally connected circu-
lation pump is automatically switched on during this time.
Detailed explanations and possible setting values of this function can
be found in
Chap. 7.6.5 .
4.5.7 Additional program
[→ Main menu → Configuration → Addition]
This menu combines programs which simplify initial commissioning
of the system.
Air purge function
[→ Main menu → Configuration → Addition → Ventilation]
By activating the ventilation function, the controller starts a fixed
defined sequence program with start/stop operation of the integrated
heating circulation pump and various positions of the integrated 3-
way switching valves. Existing air can escape during operation via
the automatic ventilation valve.
INFORMATION
The activation of this function does not replace correct
venting of the HC.
The HC must be completely full before activating this func-
tion.
Relay Test
[→ Main menu → Configuration → Addition → Relay test]
This program allows testing of internal switching relays. This may be
necessary in the event of malfunctions, error messages or as part of
annual maintenance. When the menu is opened, all relays are deac-
tivated. Selecting one or more relays activates them. When the
menu is exited, all relay tests are terminated.