3
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Operation
Daikin RoCon HP
Daikin Control
008.1420844 – 05/2014
Operating instructions
21
3.6.6 Interlink function
Caution!
Incorrect flow temperatures can result in damage to
the underfloor heating system or the build-up of con-
densation on cooling surfaces.
●
Limit infeed target temperatures to suitable
ranges.
●
Heat distribution areas with different design
temperatures should be installed as hydraulically
separate heating circuits.
Heating circuits with limited infeed target tempera-
tures should possibly be installed as mixing circuits
controlled by mixer modules.
Setting of the parameter [Interlink fct] = On offers the possibility
of the Daikin Altherma EHS(X/H) integrating two different infeed
target temperatures into the control system.
This applies both to a weather-controlled controller and a con-
troller using a fixed inflow target temperature (see section 3.6.4).
A possible use for this might be the additional integration of a
FWXV(15/20)AVEB in a surface heating and cooling system.
Requirement: 2 switching contacts (e.g. room thermostats) need
to be connected to plug connection J16 on the Daikin Altherma
EHS(X/H).
– Parameter [Interlink fct] = Off: Deactivated
– Parameter [Interlink fct] = On: Evaluation of
and cooling
switching contacts at plug connection J16 on the
RoCon BM1 circuit board.
Activation of cooling mode only possible by changing operat-
ing mode to "Cooling" (see section 3.4.2).
Setting for the parameter [Room thermostat] no longer evalu-
ated.
a) Open switching contacts: Only frost protection active.
b) Operating modes "Heating" or "Automatic 1" /
"Automatic 2" active during switching cycles in day mode.
– Closed switching contact heating
= IL1:
The system operates according to the normal infeed tar-
get temperature according to the parameter settings in
"HC Configuration"
>
"Heating"
.
– Closed switching contact cooling
= IL2:
The system operates according to the increased inflow
target temperature (normal inflow target tempe
value of parameter [T-Flow CH adj]. Priority if both switch-
ing contacts are closed.
c) "Cooling" operating mode active.
– Closed switching contact heating
= IL1:
The system operates according to the normal infeed tar-
get temperature according to the parameter settings in
"HC Configuration"
>
"Cooling"
.
– Closed switching contact cooling
= IL2:
The system operates according to the reduced inflow tar-
get temperature (normal inflow target temperature - value
of parameter [T-Flow Cooling adj]. Priority if both switch-
ing contacts are closed.
More detailed explanations and possible setting values for this function can be seen
in chapter 5.2.1.
3.6.7 Additional heat generator
Adjustment of the [Function Heating Rod] sets whether and
which additional heat generators (WEZ) are available for do-
mestic hot water generation and heating support.
– 0: No additional WEZ
– 1: Optional backup heater EKBUxx (connected via XBUH1
plug)
– 2: Alternative WEZ takes over the hot water generation and
heating support. Upon demand by the WEZ, relay K3 on the
RTX-EHS circuit board is switched on (see fig. 3-16).
– 3: Alternative WEZ 1 (optional backup heater EKBUxx) takes
over hot water generation and alternative WEZ 2 takes over
heating support Upon demand by WEZ 1 and WEZ 2, relay
K3 and relay K1 respectively on the RTX-EHS circuit board
are switched on (see fig. 3-16). Observe warning signs!
The operation of additional heat generators are also influenced
by the parameters [Equilibrium Func.] (see chapter 5.2.1) and
[Equilibrium Temp] (see chapter 5.2.2).
The heat supplied by an alternative heat generator must be
added to the unpressurised storage tank water in the Daikin Al-
therma EHS(X/H) hot water storage tank.
– In the case of the optional backup heater EKBUxx, this is
managed by the construction.
– In the case of using an external heat generator (e.g. gas or oil
boiler) this can be integrated hydraulically
a) Unpressurised via connections (solar infeed and solar
return) of the hot water tank.
or
b) In device types Daikin Altherma EHS(X/H) B, via the
integrated solar pressure heat exchanger.
