Operating instructions
14
Daikin RoCon HP
Daikin Controller
008.1420844_13 – 02/2016
3
x
Operation
All controllers integrated into the RoCon-system via the CAN bus
are also switched at a higher level to the operating mode
"Standby".
Fig. 3-8
Standard display in "Standby" operating mode
(above the frost-protection limit)
In the "Standby" operating mode, the heat pump and
any optionally connected backup heaters are isolated
from the power supply (
Energy saving mode
) when
the following conditions are met:
– The outdoor temperature sensor (RoCon OT1) is
connected and correctly parametrised in the system
configuration (parameter [Outside Config] = On),
– The outdoor temperature is over 8 °C,
– There is no heating command,
– The frost protection function is not active in any of
the connected heating circuits, and
– Daikin Altherma EHS(X/H) has been switched on
for at least 5 mins.
Operating mode Reducing
Reduced heating mode (lower set room temperature) in ac-
cordance with the target flow temperature set for economy mode
in the parameter [T-Reduced] (see section 3.4.4).
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
Operating modes Heating, Cooling
Heating or cooling operation in accordance with the room tem-
perature set in the parameter [T-Room 1 Setpoint]
(see section 3.4.3).
A connected outdoor temperature sensor (weather-controlled
flow temperature regulation) or a connected room station will also
influence the set flow temperature regulation (requirements:
Parameter [HC Function] = On).
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
Operating mode Summer
Hot water generation according to the set target domestic hot
water temperatures and switching cycles in the hot water time
programme [DHW Program 1] (see section 3.4.5).
All controllers integrated into the RoCon-system via the CAN bus
are also switched at a higher level to the operating mode
"Summer".
Operating mode Automatic 1 (Timer programme)
Automatic heating and economy mode in accordance with the
permanent timer programmes (see section 3.4.7):
– [HC Program 1]
– [DHW Program 1]
Operating mode Automatic 2 (Timer programme)
Automatic heating and economy mode in accordance with the
permanent timer programmes (see section 3.4.7):
– [HC Program 2]
– [DHW Program 2]
If, in the active operating mode, the hot water gener-
ation is in setback, you can use the rotary switch
to
set temporary
"DHW Reheating"
without having to
change any other standard settings (see section 3.4.6).
Switching contact for external operating mode
switching
Via a potential-free switching contact connected to con-
nection J8 of the Daikin Altherma EHS(X/H) at ter-
minals "EXT" and switched with a resistance we can
also carry out a changeover of the operating mode from
an external device (e.g. a modem, …) (see tab. 3-6).
Operating mode
Resistance
Tolerance
Standby
< 680
Ω
± 5 %
Heating
1200
Ω
Reducing
1800
Ω
Summer
2700
Ω
Automatic 1
4700
Ω
Automatic 2
8200
Ω
Tab. 3-6 Resistance values for the evaluation of the EXT signal
The resistances specified in tab. 3-6 work at a toler-
ance range of 5 %. Resistances outside of this toler-
ance ranges are interpreted as open input. The heat
generator resets to the previously active operation
mode.
At resistance values higher than the value for
"Automatic 2", the input is not considered.
If several switching contacts are to be connected to the
Daikin Altherma EHS(X/H) (e.g. SMART GRID, Room
thermostat), the associated functions can have a higher
priority than the external operating mode switching.
The operating mode requested by the EXT switching
contact might then not be activated or may be activated
later.
In addition to these operating modes there are various different
temporary heating programmes available (see tab. 3-7), which
run according to priority after they have been activated.
