User manual:
RDO3x3A
47
9 Abbreviations
Ba
; Ta
: Outdoor temperature sensor
; Outdoor temperature (weather)
Bag
; Tag
: Flue gas temperature sensor
; Flue gas temperature
Bh1
: Input running hours burner step 1
Bh2
: Input running hours burner step 2
Bk
; Tk
: Boiler temperature sensor
; Boiler temperature
Br
; Tr
: Room temperature sensor
; Room temperature
BrA
: Gas module for burner
Bres
; Tres
: Reserve temperature sensor
; Reserve temperature
Brü
; Trü
: Return temperature sensor
; Return temperature
Bv
; Tv
: Flow temperature sensor
; Flow temperature
Bww
; Tww
: DHW temperature sensor
; DHW temperature
dTr
: Deviation of the room temperature from setpoint
D-Bus
: Device bus
Ext. :
External
Ez
: Influence of the room temperature to the controlling system
GebArt
: Construction of the building heavy, medium, light
GND
: Ground, reference potential for low voltage connections
HK
; HKP
: Heating circuit
; Heating circuit pump
KK
; KKP
: Direct heating circuit
; Direct heating circuit pump
L
: Phase (230VAC)
MK
; MKP
: Mixer circuit
; Mixer circuit pump
M-HK
: Mix-heating circuit
N
: Neutral wire (230VAC)
OM
: Opto-coupling module
PWM
: Output (pulse width modulation)
RFB
: Remote control unit (with or without room temperature sensor)
RM
: Relay module (external relay connected to output PWM)
RZM510A
: Heating circuit module connected to D-bus
RZM530A
: Boiler cascade module connected to D-bus
S
: Slope standardized (fixed point of heating characteristics)
S_akt
: Actual slope
SD
: Switching difference
SD1
; SD2
: Switching difference stage 1
; Stage 2
SDWW
: Switching difference DHW
standby
: Main function off, safety functions on
SW :
Software
Taausl
: Outdoor temperature at design point
Taged
: Outdoor temperature attenuated
Tageb
: Building specific mean outdoor temperature
Tanl_f
: Frost point temperature of installation
Tkmax
; Tkmin
: Maximum boiler temperature
; Minimum boiler temperature
Tksoll
: Boiler temperature, setpoint
Tksoll_unbegr
: Unlimited boiler temperature setpoint
Tk_Th
: Boiler temperature setpoint for DHW charge with thermostat control
TN
: Integral phase (PID controller)
TV
: Differential phase (PID controller)
Tvausl
: Flow temperature in the design point
Trümin
: Minimum return temperature
Trsoll
: Room temperature, setpoint
Tvmax
; Tvmin
: Maximum flow temperature
; Minimum flow temperature
Tvsoll
: Flow temperature setpoint
Twwsoll
: DHW temperature setpoint
Twwüb
: Raising of the DHW temperature
t_verz
: Wait time
WW :
DHW
WWel
: DHW charge by electrical device
WWP
: DHW pump (DHW charging pump)
WW-Th
: DHW thermostat