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Smile SDC heating and district heating controller

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Smile SDC heating and district heating controller SERVICE MANUAL EN2H-0221GE51 R0213 EN2H-0221GE51 R0213 SDC / DHC Contents Contents 1 Software version Safety instructions Intended use...
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Smile SDC heating and district heating controller SERVICE MANUAL EN2H-0221GE51 R0213 EN2H-0221GE51 R0213 SDC / DHC Contents Contents 1 Software version Safety instructions Intended use Requirements for start-up Power supply Connection conditions Cable cross-sections Maximum cable lengths Cable installation Grounding and zeroing Hot-water temperature greater than 60 C Connection of accessory parts Maintenance and cleaning Safety precautions for EMC-compliant installation Overview Abbreviations Operation Display and operating elements Display (basic display) Operating elements Input button (press / turn) Daytime room temperature button Night-time room temperature button Daytime hot-water temperature button Operating mode button (basic display) Switching time programs / Holiday programs button System information button Manual mode / Emission measurement button EN2H-0221GE51 R0213 3 Contents SDC / DHC Access to the technician / OEM area Heating curve Menu-selection level Time - Date menu Timeprograms menu Selection of the control circuit Selection of the program Selection of day of the week and cycle Programming switching times and cycle temperatures System Parameters menu Language selection Time program Operating mode Parameter reset Complete reset DHW menu Night-time hot-water temperature Legionella protection day Direct Heating Circuit / Mixed Heating Circuit 1 / Mixed Heating Circuit 2 menu Reduced operation Heating system Error messages Parameter settings Hydraulics menu (HYDRAULIC) System parameters menu (SYSTEM) Hot-water circuit menu (DHW) Direct heating circuit menu (UNMIXED CIRC) Mixed heating circuit 1 / 2 (MIX.VALVE - 1 / MIX.VALVE - 2) menus Heat generator menu (HEAT GENER EN2H-0221GE51 R0213 SDC / DHC Contents 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) Data bus menu (BUS) Relay test menu (RELAY TEST ) Error messages menu (ALARM) Error messages 2 menu (ALARM 2) Service menu (SERVICE) Sensor calibration menu (SENSOR ADJ.) Control Functions Variable adjustment of the hydraulic parameters (variable inputs and outputs) Connection and settings table Switching time program enabling Suppressing the cycle temperature on time program level Enabling Separate Control Mode Switching from SDC to DHC Selection of hydraulic parameter presettings The variable inputs and outputs of device series SDC/DHC General functions and their operation Outside temperature sensing Building type Heating circuit outside temperature assignment Outside temperature emergency operation value Outside temperature disable Climate zone Design temperature EN2H-0221GE51 R0213 5 Contents SDC / DHC Summer switch-off System frost protection Pump forced operation Hydraulic Components Heat generator: Boiler Heat generator start-up protection Heat generator minimum temperature limit Maximum temperature limit heat generator Heating circuits minimum temperature limit Heat generator sensor control mode Minimum burner runtime Switching: Multi-stage heat generator/switching differential Operation for modulating burners Modulation of P part (Xp) Modulation of sample time Ta Modulation of integral action time Tn Modulation of runtime Modulation of start time Modulation of start power OpenTherm Use of boiler sensor External heat generator cut-off Heat generator forced discharge Exhaust gas temperature monitoring Burner counter mode Heat generation, heat exchanger, district heating On/Off operation of the district heating valve Continuous heat exchanger valve control District heating return temperature limit Return temperature limit for hot-water loading Hot-water pre-regulator with district heating systems EN2H-0221GE51 R0213 SDC / DHC Contents Mode of operation: Hot-water pre-control Quick hot-water control Mode of operation of hot-water control mode external operation Conditional parallel operation for mixed heating circuits Circulation pump control mode Switch-off of district heating control Return interval flushing Heat meter for additional limitation according to the volume flow or thermal output Charging pump (CHP) Primary pump Boiler circuit pump Return increase Bypass pump (RBP) Return maintenance through controlled feed water addition Indirect return increase Heating circuit General heating circuit functions Heating curve Heating curve setting (heating curve) Reduced operation Heating system Heating circuit temperature limit Heating circuit temperature offset Heating circuit pump extended running time Screed function Heating circuit constant temperature control Fixed-value control Consideration of the room temperature/room influence Heating circuit room connection EN2H-0221GE51 R0213 7 Contents SDC / DHC Heating circuit room factor Heating circuit room controller Switch-on/switch-off optimisation Room setpoint ramp Heating limit function Heating circuit room frost protection limit Mixed heating circuits cooling switch-over Heating circuit name Room thermostat function (maximum room temperature limit) Hot-water production Hot-water tank loading (SLP) Circulation pump (CIR.) Solar/Solid fuel/buffer Solar function Buffer tank function Solid fuel function Tank loading switch-over Hydraulic buffer relief (HBR) Easy enabling and disabling of a heating pump Other system components Global fault message input Global fault message output Timer External switching modem External information Demand contact Bus communication Bus address of central device Control functions via the data bus Operation of wall devices EN2H-0221GE51 R0213 SDC / DHC Contents Cascading of heat generators in the bus system General description of cascading of control devices Function of the cascade parameters Mode of operation of cascade control Commissioning, maintenance and troubleshooting help Automatic set function Emission measurement (not for DHC 43) Relay/function test Error messages Basic display/fault stack fault messages Sensor calibration Full controller reset Controller time correction Technical data General Installation recommendations Sensor resistance values NTC PT Sensor measurement ranges Digital inputs Log Index EN2H-0221GE51 R0213 9 Contents SDC / DHC 10 EN2H-0221GE51 R0213 SDC / DHC Software version 1 Software version This documentation is valid for software version V 3.2 of your control device. The software version is displayed after switch-on for approx. 8 s. If you are using an older software version, please contact your heating technician. 2 Safety instructions 2.1 Intended use The SDC / DHC Smile family of controllers was designed for the sole purpose of regulating and controlling hot-water, heating and district heating systems (including hot-water production) that do not exceed a maximum flow temperature of 120 C. 2.2 Requirements for start-up ATTENTION The heating system must be complete and filled with water so that the pumps do not run dry and the heating boiler is not damaged. The control equipment must be installed in accordance with the installation instructions. All electrical connections (voltage supply, burner, mixer motor, pumps, sensor wiring etc.) must be carried out by the technician in accordance with the applicable VDE regulations and correspond with the circuit diagrams. If floor heating is connected, a limiting thermostat must also be installed in the flow line after the heating circuit pump. This switches off the pumps at excessive flow temperatures. Before starting up the controller, have the heating technician check all requirements listed above. NOTE The current time and date are already set at the factory and are backed up by a battery. The time switch functions based on a basic program and the control functions are preset for common heating systems with lowtemperature boilers. EN2H-0221GE51 R Safety instructions SDC / DHC Power supply Do not disconnect the controller from the mains supply! The battery for saving all individualised data is otherwise unnecessarily strained. The frost-protection function of the controller is deactivated Connection conditions All electrical connection work may only be carried out by qualified personnel! Cable cross-sections 1.5 mm 2 for all cables carrying 230 V (power supply, burner, pumps, actuator). 0.6 mm 2 for bus cables (recommended type J-Y(St)Y 2 x 0.6). 0.5 mm 2 for sensors, selectors and analog signal cables Maximum cable lengths Sensor, selector and analog inputs We recommend using cables no longer than 200 m. Longer connection lines could be used, but increase the risk of interference. Relay outputs Unlimited cable length. Bus connections Max. length of 100 m from the first bus subscriber to the last one (incl. wall modules) Cable installation Install cables for sensors apart from the cables carrying 230 V! Branch boxes in the sensor cable must be avoided! 12 EN2H-0221GE51 R0213 SDC / DHC Safety instructions Grounding and zeroing Local regulations on the connection of equipment must be observed! 2.3 Hot-water temperature greater than 60 C ATTENTION Note that there is a danger of scalding at all hot-water drawoff points (kitchen, bathroom etc.) in the following cases. Add sufficient cold water in these cases. Automatic antilegionella mechanism Manual mode / Emission measurement When the automatic anti-legionella mechanism is activated, the hot water is automatically heated to the anti-legionella temperature (65 C at the factory) on the selected day and at the selected time to kill any legionella bacteria found in the hot-water tank. In the manual mode / emission measurement operating mode, the hot water is heated up to the highest possible boiler temperature, as the burner and all pumps are switched on and the mixer is opened fully. There is an acute danger of scalding at all connected hot-water draw-off points! Add sufficient cold water or switch off the hot-water loading pump (at the switch of the pump, if present). Heating and hot water are in unregulated continuous operation. This operating mode is for special use by the chimney sweep for emission measurement or if the controller is defective. The high hot-water temperatures can be prevented, however, by setting the boiler thermostat to a max. boiler temperature of approx. 60 C. EN2H-0221GE51 R Safety instructions SDC / DHC 2.4 Connection of accessory parts WARNING According to VDE 0730, a separator for each mains terminal is to be provided in the voltage supply to the control equipment. Observe the local regulations regarding grounding and zeroing. As soon as the mains voltage is applied to terminals 21, 22, 2, 6, 12 and 18, headers X3 and X4 can also carry mains voltage. If the heating circuit and hot-water loading pumps do not have an On / Off switch, but manual switch-on and switch-off capability is still desired, the appropriate switches must be installed by the customer. All accessory parts (sensors, selectors etc.) are to be connected to the respective circuit diagram. 2.5 Maintenance and cleaning The controller is maintenance-free. The device can be cleaned externally with a moist (not wet) cloth. 14 EN2H-0221GE51 R0213 SDC / DHC Safety instructions 2.6 Safety precautions for EMC-compliant installation Mains lines and sensor/data bus lines must be installed separate from each other. A minimum of 2 cm space must be present between the lines. It is permissible to cross lines. a Mains 230 V AC x 15 cm b Data bus line 12 V AC y 2 cm For control devices with their own mains connection, separate installation of mains and sensor/bus lines must absolutely be ensured. If cable ducts are used, they are to be provided with cutoff bridges. EN2H-0221GE51 R Safety instructions SDC / DHC When installing control or wall devices, a minimum spacing of 40 cm to other electrical equipment with electromagnetic emissions, e.g. relays, motors, transformers, dimmers, microwave ovens and televisions, audio speakers, computers, cordless telephones etc., is to be ensured. x 40 cm A minimum spacing of 40 cm is to be ensured between wall devices and central devices. Multiple central devices in the data bus system can be mounted directly next to one another. 16 EN2H-0221GE51 R0213 SDC / DHC Safety instructions The mains connection of the heating system (boiler panel control equipment) must be designed as a separate circuit. Neither fluorescent lamps nor any machines which are potential sources of interference may be connected/connectable. a b c d e Safety fuse 16 A Boiler room emergency switch Connect boiler room lighting and electrical outlets to separate circuits only! Wall devices Heat generator Shielded cables must be used for the data bus lines. For a recommended layout, see 8 Technical data, pg. 252 EN2H-0221GE51 R Safety instructions SDC / DHC The earth connection of the cable shielding must occur on one side at the protective conductor connection, e.g. at the cladding plate of the heat generator, protective conductor terminal etc. Multiple earth connections of a single cable are not permissible (buzzing loop). a No earth connection here! b Central device 18 EN2H-0221GE51 R0213 SDC / DHC Safety instructions With star-topology data bus systems, double earth connections may not be made. The earth connection must be made on one side of the star! a Shielding b Two-lead data bus line c Distributor terminal d Branch box The outside sensor may not be installed near transmitters or receivers (e.g. on garage walls near garage door opener receivers, amateur radio antennas, radio alarm systems or directly next to large transmission equipment etc.). EN2H-0221GE51 R Overview SDC / DHC 3 Overview The modular SDC / DHC control device is available in an installable switch cabinet version and a surface-mounted wall version with the following equipment features: Type Number of output relays Burner stage 2 or District heating valve CLOSED Burner stage 1 SDC x x x SDC x SDC ) 7 x x x x x SDC ) 7 + two variable relays Direct heating circuit Variable output 3 Mixed heating circuit 1 Mixed heating circuit 2 Tank loading pump Variable output 2 x x x x x x x Variable output 1 SDC ) 10 + two variable relays x x x x x x x x 1) DHC ) DHC ) DHC EN2H-0221GE51 R0213 SDC / DHC Abbreviations 4 Abbreviations The following abbreviations are used in this documentation/in the display of the control device: RED Lowering operation BS 2 Buffer sensor 2 (bottom) OS Outside sensor BLP Buffer loading pump OS2 Outside sensor 2 RBP Return bypass pump FGS Flue gas sensor RP Return pump OT Outside temperature SD I Switching differential I BUS System data bus SD II Switching differential II OC1 Burner stage 1 operating hour TS Tank sensor counter OC2 Burner stage 2 operating hour TLP Tank loading pump counter DC Direct heating circuit SLS Solar loading switch-over DCP Direct heating circuit pump SLSS Solar loading switch-over sensor ECO Switch-off operation SFD Solar forced dissipation EHR Electric heating rod SLP Solar loading pump SFB Solid fuel boiler sensor STL Stratified tank loading pump SFR Solid fuel buffer sensor VO Variable output (general) FC Fixed-value control VO1 Variable output 1 SFP Solid fuel pump VO2 Variable output 2 PI Pulse input VI Variable input (general) BP Boiler circuit pump VI1 Variable input 1 CC Constant control VI2 Variable input 2 CRS Collector return sensor VI3 Variable input 3 CTBS Collector tank/buffer sensor FM1 Flow sensor of mixed heating circuit 1 CFS Collector flow sensor FM2 Flow sensor of mixed heating circuit 2 MM Mixer motor PHE Parallel heat generator enable MC Mixed heating circuit HG Heat generator MHP Mixed heating circuit pump HGS Heat generator sensor P1 Switching time program WD Wall device for room temperature sensing P2 Switching time program HW Hot water P3 Switching time program CIR Circulation pump BS Buffer sensor (top) CHP Charging pump EN2H-0221GE51 R Operation SDC / DHC 5 Operation 5.1 Display and operating elements 1 Manual mode / Emission measurement button (not on district heating controllers) 2 Operating modes button (basic display) 3 Switching time programs / Holiday programs button 4 System information button 5 Display 6 Cover clip for service socket 7 Daytime room temperature button 8 Night-time room temperature button 9 Daytime hot-water temperature button 10 Input button (press / turn) 11 Operating mode symbols (heating programs) 22 EN2H-0221GE51 R0213 SDC / DHC Operation Display (basic display) 1 Day of the week / Date 4 Operating mode symbols 2 Time 5 Heat generator temperature 3 Active operating mode The illumination of the display is switched on by pressing any button or using the input button and switches off automatically if no buttons are pressed for a longer period of time. During start-up of the unit and after a power failure, a segment test with automatic fault diagnosis is carried out. The respective device type and the software version number then appear briefly. The basic display that then appears shows the day of the week, the date, the time and the heat generator temperature in automatic mode. Different values appear in the basic display depending on the set operating mode (AUTOMATIC, PARTY etc.). Thus, for example, in the ABSENT operating mode, the indication ABSENT TIL appears instead of the date and the return date instead of the temperature. Active summer deactivation is indicated by a beach umbrella symbol, and active frost protection is indicated by a snowflake symbol. EN2H-0221GE51 R Operation SDC / DHC Operating elements Input button (press / turn) By pressing once, you can: Confirm input / values By pressing and holding (approx. 3 s), you can: Switch to the menu-selection level Move up one menu level By turning the input button, you can: Change values (clockwise increases called-up values, anticlockwise decreases them) Navigate through menus Daytime room temperature button Sets the desired room temperature (room setpoint) in automatic mode during the heating cycles and in the PARTY and HEATING operating modes. In operating mode 1, the set value for all heating circuits is the same. In operating mode 2, the set value applies for the respective heating circuit. To set the operating mode, see Operating mode, pg. 74. Setting Press button. Set flashing room temperature specification to the desired value by turning the input button. Confirm set value by pressing the button or the input button. Alternative: Automatic acceptance of the value after the set information time (see System information button, pg. 35). Factory setting Setting range 20 C C 24 EN2H-0221GE51 R0213 SDC / DHC Operation Night-time room temperature button Sets the lowered room temperature in automatic mode between the heating cycles and in the ABSENT and RED. HEATING operating modes. In operating mode 1, the set value for all heating circuits is the same. In operating mode 2, the set value applies for the respective heating circuit. To set the operating mode, see Operating mode, pg. 74. Setting Press button. Set flashing room temperature specification to the desired value by turning the input button. Confirm set value by pressing the button or the input button. Alternative: Automatic acceptance of the value after the set information time (see System information button, pg. 35). Factory setting Setting range 16 C C Daytime hot-water temperature button Sets the daytime hot-water temperature during the hot-water operational-readiness times in automatic mode and in the PARTY and HEATING operating modes. This set value also applies for exclusively hot-water operation (manual summer operation). Setting Press button. Set flashing hot-water temperature to the desired value by turning the input button. Confirm set value by pressing the button or the input button. Alternative: Automatic acceptance of the value after the set information time (see System information button, pg. 35). Factory setting 50 C EN2H-0
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