Operating Instructions

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Siemens RXB application library (KNX) RXB – Fan coil applications from FC-10, FC-11, FC-12, FC-13 CM110672en_05
Building Technologies 2BFNC03 – Two-pipe fan coil with changeover and electric reheater 2013-06-07
Menu
Parameters.
Values/Range
Basic setting
Fan control All
Minimum on time.
1...10 min
6 min
Temperature sensor B1
– Room
– Return air
– Measured value only
– No sensor
No sensor
Periodic fan kick Comfort
FC-13: also Precomfort
0...90 min (90min = Off)
90 min (Off)
Periodic fan kick Economy
0...360 min (360min = Off)
360 min (Off)
Fan overrun time
1...10 min
1 min
Room unit
Measured value correction
– 3...3 K
0 K
Setpoint offset range
± 0...10 K
± 3 K
Local Comfort mode
Enabled / Disabled
Enabled
Room unit
Without LCD / with LCD
Without LCD
With LCD
Display heating/cooling symbols
Enabled / Disabled
Enabled
Temperature unit
°C or °F
°C
Standard display No display / Room temperature
/ Setpoint
Room temperature.
Setpoint display
Absolute / Relative
Relative
DC 0...10 V Fan function standby 0 / 1 Disabled (0)
Fan speed user defined
0 / 1
Disabled (0)
User fan speed 3
0...100% (of Smin-Smax)
100 %
User fan speed 2
0…100% (of Smin-Smax)
50 %
User fan speed 1
0…100% (of Smin-Smax)
0 %
General functions. Digital input 1...4 Free (bus = 1) = Contact open/closed Free (bus = 1)
Occupancy: Occupied = Contact open/closed
= Contact closed.
Window: Window open = Contact open/closed
Overtemp. = Contact open/closed
FC-13 only
Air flow No air flow = Contact open/closed
Temporary Comfort mode
0...360 min
60 min
On-delay occupancy detector
0...90 min 5 min
Off-delay presence detector
0...90 min
5 min
Central functions
Heating demand signal
Enabled / Disabled
Enabled
Cooling demand signal
Enabled / Disabled
Enabled
Boost heating
Enabled / Disabled
Enabled
Precooling, free cooling Enabled / Disabled Enabled
Reset setpoint offset
Enabled / Disabled
Disabled
Master/slave
Master/slave
Master or slave
Master
The room controllers can be ordered preloaded with the application described here.
When ordering, specify the quantity, RXB device name, type code and application
group.
15 Room controllers RXB22.1 with application group FC-12 RXB22.1/FC-12
The controllers are delivered with the basic settings shown above.
Ordering
Example
Note