User Manual

31
Function
description
Description of functions
Synchronization of clock time
The clock time can be set on any of the Synco 700
controllers (RMH, RMU, RMS, RMB) and is synchro-
nized throughout the system.
The clock time can also be displayed on the room
thermostats (RDG).
Time switch
Geographical zone
The time switch master – in this case the central
control unit (RMB) – forwards the Comfort, Precomfort
and Economy modes to all room thermostats (RDG)
in its geographical zone. This means that all room
thermostats (RDG) operate according to the time
switch of the time switch master.
With the room thermostats (RDG), there is no time
switch slave zone available. Here, the apartment
address of the geographical zone must be identical
with that of the time switch master. With the room
thermostats (RDG), the subzone address is always 1
and cannot be changed.
Holidays / special days
Geographical zone
With the room thermostats (RDG), it is not possible to
set a holidays / special day zone. This information is
distributed in the geographical zone via the time
program.
Outside temperature
Outside temperature zone
The central control unit (RMB) distributes the outside
temperature in outside temperature zone 1. All de-
vices in outside temperature zone 1 operate with the
same outside temperature.
Optimization of energy usage room
Heat distribution zone
When the room calls for heat, the room controller
(RXB) forwards the heat request to the flow tempera-
ture controller (RMU, basic type C) via heat distribu-
tion zone 2.
Refrigeration distribution zone
When the room calls for cooling, the room controller
(RXB) forwards a refrigeration request to the flow
temperature controller (RMU, basic type C) via refrig-
eration distribution zone 2.
Heating / cooling changeover
The flow temperature controller (RMU, basic type C)
transmits the heating / cooling changeover signal in
the heat and refrigeration distribution zone. This func-
tion must be activated via Extra configuration.
The room controller (RXB) decides whether the water
is suited for heating or cooling.
Optimization of energy usage primary side
Heat distribution zone
When flow temperature control (RMU, basic type C)
calls for heat, it forwards a heat request to heat gen-
eration (RMH) via heat distribution zone 1, provided
heating / cooling changeover demands heat.
Heat generation (RMH) provides heat only when at
least one of the consumers in the system calls for it
(demand-dependent control).
Refrigeration distribution zone
When flow temperature control (RMU, basic type C)
calls for cooling, it forwards a refrigeration request to
refrigeration generation (RMS) via refrigeration distri-
bution zone 1, provided heating / cooling changeover
demands cooling.
Refrigeration generation provides chilled water only
when at least one of the consumers in the system
calls for it (demand-dependent control). In addition,
the production of chilled water is locked via the time
switch.
Parameter settings
for communication
Parameter Setting Function Remarks
1. Parameter settings on the refrigeration controller, RMS705B
Basic settings
Path: ... > Commissioning > Communication > Basic settings
Clock time opera-
tion
Slave The device receives the time of day
from the master
Remote setting
clock slave
Yes The master’s clock can be set from
this device
Remote reset of
fault
Yes Faults of other bus users can be
acknowledged and reset from this
device