Smile SDC heating and district heating controller
EN2H-0221GE51 R0808
Contents
Menu-selection level
SDC / DHC
Control Functions 114
Hydraulic Components 128
155
171
254
Technical data 250
255
SDC / DHC
Intended use
Software version
Cable installation
Power supply
Connection conditions
Cable cross-sections
Grounding and zeroing
Hot-water temperature greater than 60 C
SDC / DHC
Safety precautions for EMC-compliant installation
SDC / DHC
SDC / DHC
SDC / DHC
SDC / DHC
Overview
Abbreviations
Display and operating elements
Operation
Display basic display
Setting
Daytime room temperature button
Factory setting
Setting range
Factory setting Setting range 2.4
Night-time room temperature button
Daytime hot-water temperature button Setting
Factory setting 50 C
Operating mode button basic display
Setting range One-time hot-water circuit loading
Party
Absent
Automatic
Summer
Absence mode short-term program
Setting Return to the basic display
P1 P2, P3
Party mode short-term program
Automatic mode
Disabling / enabling default programs P2 to P3
Display 2.5.4 Disabling / enabling default program P2 to P3
Enabling
Manual summer operation excluding heating operation
Continuous lowering operation
Continuous heating operation
Switching time programs / Holiday programs button
Holiday mode
System information button
Factory setting Current date
Operating overview
OFF
Temperature displays Information Display Condition Remarks
EM-SET
ON/OFF
Information Display Condition Remarks
MC1
Thermostat
MC2
Information Display Condition
Operating states
Information Display Condition
Clock
Information Display Condition
Cancellation Press
Manual mode / Emission measurement button
SDC / DHC
Procedure
Access to the technician / OEM area
2.10 Setting Setting range Heating curve
Menu-selection level
Parameter Programming Date
Parameter Programming Date Hydraulics
Parameter Programming Date Hydraulics Configuration
Hot water Direct heating Circuit Mixed heating
Parameter
Time Date menu
Access
Returning
Timeprograms menu Access Returning
Selection of the program
Selection of the control circuit
Selection of day of the week and cycle
Switch-off time
Cycle temperature
DHW
Switching time programming programs P2 and P3 disabled
Default program P1
Default switching time program P1 for heating and hot water
Switching time programming program P2 and P3 enabled
Default program P3
Default program P2
Calling up the copy function days
Copying switching time programs days Source day Target day
Calling up the copy function heating circuits
Block programming
SDC / DHC
DHW
Copying heating circuits
Reloading default programs
SDC / DHC
Reloading default programs
Switching time programs P2 and P3 enabled
Setting values DE
System Parameters menu Access Returning
Factory setting German
System information button, pg Language selection
Control mode selection
Set values Factory setting Effects
Switching time programming
Time program
Setting range
Individualised operating mode for each heating circuit
Slow increase in outside temperature
Quick increase in outside temperature
Factory setting 20 C
Parameter reset
DHW menu
Complete reset
Factory setting 40 C
Night-time hot-water temperature
ALL
Reduced operation
ECO switch-off operation
ECO
ECO, RED
UFH
Heating system
RAD
Conv
Para Designation Setting range / Setting values Meter
Parameter settings Hydraulics menu Hydraulic
Factory setting Setting
Mixed heating
Electrical heating circuit
Buffer sensor
Setting System parameters menu System
ALL
OFF, on
SDC, DHC
RTC
SDC/DHC
OEM
Hot-water circuit menu DHW
SDC / DHC
Auto
RED
Direct heating circuit menu Unmixed Circ
CON
Room connection
Stby
Mixed heating circuit 1 / 2 MIX.VALVE 1 / MIX.VALVE 2 menus
Room connection
SDC / DHC
Room control Tn 240 min SDW 30 only Holiday operating
Heat generator menu Heat Gener
Unlimited minimum limit
SLT
102 EN2H-0221GE51 R0808
OFF Reset
Reset
District hot water menu DIST.HEATING
Return increase menu Return Contr
Solar menu Solar
Solid menu Solid Fuel
Buffer menu Buffer
Total flow regulation menu Main Supply
Cascading menu Cascade
Relay test menu Relay Test
Data bus menu BUS
OFF-ON-OFF
STOP-OPEN-CLOS Stop
Error messages menu Alarm
Sensor calibration menu Sensor ADJ
Error messages 2 menu Alarm
Control Functions
Example
VF2
SLP
SLP, DKP
DKP, VA1 VA2
FKF
Switching time program enabling
Sslp
Slvf
Enabling Separate Control Mode
Suppressing the cycle temperature on time program level
Selection of hydraulic parameter presettings
Switching from SDC to DHC
Variable inputs and outputs of device series SDC/DHC
Application
System
Key/Menu
Parameter
Design temperature
Outside temperature disable
Climate zone
Outside temperature rise
Summer switch-off
Operation without room temperature sensing
Cancelling switch-off
System frost protection
Cycle operation
Operation with room temperature sensing
Frost protection function in case of heat generator fault
Pump forced operation
Unlimited start-up protection
Heat generator Boiler Heat generator start-up protection
Start-up protection controlled by weather conditions
Minimum limit based on demand
Heat generator minimum temperature limit
Conditional minimum limit
Unlimited minimum limit
Burner switch-off in case of a faulty heat generator sensor
Heat generator sensor control mode
External burner switch-off
Switching Multi-stage heat generator/Switching differential
Burner enabling in case of a faulty heat generator sensor
Minimum burner runtime
Mode of operation with switching differential
Combined operation for 2-stage heat generators
Time-out during start-up relief
Unlimited enable during start-up relief
Resetting
Operation for modulating burners
Modulation of sample time Ta
Modulation of P part Xp
Modulation of runtime
Modulation of integral action time Tn
Modulation of start time
Modulation of start power
OpenTherm logo Electrical connection
OpenTherm
External heat generator cut-off
Two measuring points in the combustion chamber
Set values OFF
Dissipation into hot-water tank
Display of flue gas temperature only
Exhaust gas temperature monitoring
Discharge to heating circuits
Heat generator lock if limit value is exceeded for set time
Burner counter mode
Recommended setting
Heat generation, heat exchanger, district heating
Para Designation Range Presetti Step Unit Meter Increase
Continuous heat exchanger valve control
1 On/Off operation of the district heating valve
Para Designation Range Presetti Step Unit Meter
District heating return temperature limit
SDC / DHC
Return temperature limit for hot-water loading
Range Pre Step Unit Setting
Para- Designation meter
Hot-water pre-regulator with district heating systems
Mode of operation Hot-water pre-control
New parameters
Quick hot-water control
SDC / DHC
SDC / DHC
Conditional parallel operation for mixed heating circuits
Circulation pump control mode
Return interval flushing
Switch-off of district heating control
Charging pump CHP
Boiler circuit pump
Primary pump
Return increase
Bypass pump RBP
Return maintenance through controlled feed water addition
Indirect return increase
Heating curve setting heating curve
Recommended settings
Heating circuit temperature limit
SDC / DHC
SDC / DHC
Heating function for floor covering setting
Function heating acc. to DIN 4725 Part 4 setting
Fixed-value control
Heating circuit constant temperature control
No room sensor with the following conditions
Heating circuit room factor
Heating circuit room controller
Switch-on/switch-off optimisation
Parameter settings for the switch-on optimisation in the HC
Parameter 41 switch-on optimisation, 03 adaptation restart
Activation of switch
Parameter 44 min. jump back temperature
On optimisation
Switch-on optimisation without room sensor
Switch-on optimisation with room sensor adaptation
Parameter 46 pre-heating time at 0C
Parameter 47 lowering ramp
Heating limit function
Room setpoint ramp
Example
Heating circuit room frost protection limit Function
Mixed heating circuits cooling switch-over
Wall device functionality limitation
Heating circuit correction
Switch-over from heating mode to cooling mode
Cooling with humidistatic switch-off
Humidistatic switch-off
Heating circuit name Access code
Room thermostat function maximum room temperature limit
Mixed heating circuit control Proportional part Xp
Integral action time Tn
Sample time Ta
Application Adjustment Time
Actuator runtime
Example
Actuator end position function
Hot-water production Hot-water tank loading SLP
See also 5.1.2.4 Daytime hot-water temperature button, pg
Example Before
Example After
SDC / DHC
SDC / DHC
SDC / DHC
SDC / DHC
Quick hot-water connection in cascaded systems
Tank priority no heating demand
Heating
Circulation pump CIR
Electrical heating element ELH
Solar/Solid fuel/Buffer Solar function
Solar switch-on differential
Solar priority mode hot water setpoint control
Solar priority mode disabling of heat generator
Solar priority mode buffer setpoint control
Solar parallel operation
Operation in buffer priority mode
Buffer tank function
SDC / DHC
SLP
PLP
SLP SF
SLP
HC/HW
Buffer control mode
Buffer HC/HW
Buffer control mode
Discharge control
Loading control
Example
Tank loading pump with provision tanks only
Set value OFF
SDC / DHC
Buffer loading pump extended running time
Buffer sensor 2 BS2 Buffer sensor 2 BS2
Solid fuel function
Solid-fuel boiler minimum temperature limit
Tank loading switch-over
Heat generator solid-fuel cycle disable
Prerequisite
Solar loading switch-over operation
Hydraulic buffer relief HBR
Kspf B
Setting range OFF, -20 +30
Global fault message output
Other system components Global fault message input
Timer
Connection terminal of variable input 1 2, 3 open
External switching modem
HEATING, HEATING, Standby
Demand contact
System information
Address Device type Assignment
Bus communication Bus address of central device
Heating circuit demand
Tank control mode tank priority operation
Clock synchronisation
Fault messages/Status indications
Room temperature transmission
Examples with multiple control devices
MK1
Important note for parameter setting
226 EN2H-0221GE51 R0808
Address CD address Assignment
Address CU address Assignment
Operation with wall device SDW
Automatic Mode Heating Lowering Automatic
Brief Flashing
Control mode/Function Moon LED Clock LED Sun LED
OFF Flashing
Flashing OFF
Operation with NTC 20K room temperature sensor
Extended access authorisation
Function of the cascade parameters
Switch-off characteristics
Delay, enabling, full load in cascade operation
Control characteristics
Special function characteristics
Grouping for base and peak loads ANF118-V2.2 specifications
Automatic call-up
Emission measurement not for DHC
Input Only executed if
Relay/function test
Single-stage heat generator
Modulating mode
Stage heat generator
2x single-stage heat generators
Meaning Display
Value Range
Bus test
SDC / DHC
Fault messages
Eeprom
RSC/RS
These fault messages come from automatic stokers and are
Fault type Field Code
Additional fault processing
High
LOW
Basic display/fault stack fault messages
Fault Message
Operating Key/Menu Parameter Information
Sensor calibration
Full controller reset
Controller time correction
III
Technical data
Safety low-voltage lines
Installation recommendations Mains voltage lines
Sensor resistance values 1 NTC
VF1
2 PT
VE1
VE2
BZ2
BZ1
Log
Index
SDC / DHC
SDC / DHC
Automation and Control Solutions