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Riello SUN 1 PLUS 2 RS Installation Instructions Manual

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SUN 1 PLUS 2 RS
EN INSTALLATION INSTRUCTIONS

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Summary of Contents for Riello SUN 1 PLUS 2 RS

  • Page 1 SUN 1 PLUS 2 RS EN INSTALLATION INSTRUCTIONS...
  • Page 2 Please accept our renewed thanks for your purchase, Riello S.p.A. CONFORMITY SUN 1 PLUS 2 RS differential controllers conform to: − Standards EN 55014-1-2, EN 60730-1-2-9, EN 60335-1 − Low Voltage Directive 2006/95/EC − Electromagnetic Compatibility Directive 2004/108/EC −...

  • Page 3: Table Of Contents

    CONTENTS 1 GENERAL SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . 4 19 CONTROL PARAMETERS .

  • Page 4: General Safety Information

    GENERAL SAFETY INFORMATION 2 PRECAUTIONS As soon as you open the packaging, check immediately that Never clean the boiler without first disconnecting it from the the contents are all present and undamaged. Contact the mains electricity supply by turning the mains power switch reseller from whom you purchased the product if you and the control panel switch OFF .

  • Page 5: Description Of The Appliance

    3 DESCRIPTION OF THE APPLIANCE 5 NR. DISPLAYED The SUN 1 PLUS 2 RS differential controller is designed to control a The screen is made up of 3 areas: domestic hot water system with an integrated solar water heat- − parameter area ing system.

  • Page 6: Symbols Area

    7 SYMBOLS AREA 8 SYSTEM LAYOUT SCHEMATIC The symbols area consists of two lines of symbols identifying The system layout area displays a schematic of the active system system state. as set in the Arr parameter. The schematic is made up of a num- ber of symbols, which can be lit, flashing or off according to the current system state.

  • Page 7: Flashing Codes

    Consumer terminals 11 UNPACKING THE PRODUCT The SUN 1 PLUS 2 RS controller comes in a cardboard box that also contains the following accessories: − 2 x PT1000 FKP6 high temperature sensors, cable length = 1.5 m − 2 x PT1000 FRP6 storage cylinder sensors, cable length = 2.5 m −...

  • Page 8: Dimensions

    12 DIMENSIONS 13 ASSEMBLY − Mark the top fixing point on the mounting plate or wall. Drill the hole and fit the plug and fixing screw supplied with the controller. Always make sure that power to the controller is completely disconnected before removing the cover.

  • Page 9: Electrical Connections

    − Hang the controller over the top fixing point and secure it to the wall at the bottom using the wall plug and fixing screw provided. 100 ... 240 V~ 50-60 Hz IP 20 R1 N 1 (1) A 240 V~ Suspension 1 (1) A 240 V~ point...

  • Page 10: Putting Into Service

    Data transmission / Bus − Press button 3 again to confirm the setting. The SET sym- The controller has two terminals for data transmission over a bol appears fixed again. bus. Polarity is not important. − Press button 1 or 2 to switch to the previous or next con- Data transmission protocol is VBus®, which permits the trans- trol parameter.
  • Page 11 If the system layout is modified later, all settings are lost. For this To reduce the frequency of high efficiency pump starts, the reason a warning question is always displayed when settings controller automatically extends its functioning when no speed are changed in the Arr parameter.

  • Page 12: Overview Of System Layouts

    16 OVERVIEW OF SYSTEM LAYOUTS The controller is pre-programmed with 3 system layouts. IMP 1 IMP 2 IMP 3 View of system layouts: Arr 1: Standard solar system Arr 2: Solar system with supplementary heating Arr 3: Standard solar system with excess heat dissipation 17 OVERVIEW OF PARAMETERS The parameter is available Specific system parameter...
  • Page 13 SYST Parameter Description Boost Pump control Minimum speed Maximum speed S MX Storage cylinder 1 maximum temperature OSEM Storage cylinder safety deactivation Collector 1 safety temperature Collector temperature with ODB activated Collector 1 cooling option Collector 1 maximum temperature OSYC System cooling function DTCO Activation temperature differential...
  • Page 14 SYST Parameter Description tFLL Filling time tSTB Stabilisation OBST Booster function MAN1 Relay 1 manual mode MAN2 Relay 2 manual mode LANG Language UNIT Unit of measurement for temperature RESE Reset function PROG XX.XX Program number VERS X.XX Version number See the corresponding section for the active system for information on the control parameters, electrical connections, water circuit components, relays, and sensors supported by that configuration.

  • Page 15: View-Only Parameters

    18 VIEW-ONLY PARAMETERS 18.2 Collector temperature display COL: Collector temperature Display range: -40 ... +260 °C View-only parameters depend on the active system layout. The controller only displays values for the active system lay- out. 18.1 Drainback periods display Initialisation INIT: ODB initialisation activated Shows the current temperature of the collector.

  • Page 16: Flow/Return Temperature Display

    18.5 Flow/return temperature display 18.8 Operating hours counter - thermal energy TR, TFL: Other temperatures h P, h P1, h P2: Operating hours counter Display range: -40 ... +260 °C View-only parameter Shows the current temperature measured by the corresponding The operating hour counter sums the hours of operation of each sensor.

  • Page 17: Thermal Disinfection Time Remaining Display

    18.9 Thermal disinfection time remaining display TIME: Indicates current time CDIS: Monitoring period countdown Display range: 0 … 30:0 … 24 (dd:hh) − Press button 3 for two seconds to set the hour − Press buttons 1 and 2 to set the hour −...

  • Page 18: Control Parameters

    19 CONTROL PARAMETERS DT F: Deactivation temperature differential Setting range: 0,5 ... 19,5 K Default setting: 4.0 K Active control parameters depend on the selected system layout. Only the parameters displayed for the active system layout can be modified. 19.1 System layout selection Arr: System layout selection Setting range: 1 ...

  • Page 19: Maximum Storage Cylinder Temperature

    This parameter specifies the type of pump control. The following control types can be selected: − Control for standard pumps without speed control OnOF (pump activated/deactivated) − Control for standard pumps with speed control PULS (pulsed command via semiconductor relay) −...

  • Page 20: Collector Cooling

    DTCO: Activation temperature differential CMX: Maximum collector temperature Setting range: 1,0 ... 30,0 K Setting range: 70 ... 160 °C Default setting: 20,0 K Default setting: 110 °C When the system cooling function is activated, the controller at- If the system cooling function (OCC) is set ON, the controller mon- tempts to keep the solar system functioning as long as possible.

  • Page 21: Option: Frost Protection Function

    CMN: Minimum collector temperature Activation starts when a temperature below the set frost protec- Setting range: 10 ... 90 °C tion temperature is reached. If the temperature set in the frost Default setting: 10 °C protection parameter is exceeded by 1 °C, the solar circuit is de- activated.

  • Page 22: Tube Collector Option

    When maximum storage cylinder temperature (S MX) is reached, TCEN: Tube collector option, deactivation time the solar pump stays on to stop the collector overheating. Setting range: 00:00 ... 23:45 Meanwhile, storage cylinder temperature may continue to rise, Default setting: 19:00 but only to 95 °C (storage cylinder heating safety deactivation temperature).

  • Page 23: Thermostat Function

    19.13 Thermostat function t1 F , t2 F , t3 F: Thermostat deactivation time Setting range: 00:00 ... 23:45 Default setting: 00:00 Supplementary heating Utilisation of excess heat This function lets you activate/deactivate the thermostat for a certain period of time. Three time intervals, t1, t2 and t3, are available for activation and deactivation.

  • Page 24: Option: Monitoring Period

    19.15 Option: monitoring period When this function is active, the time DDIS appears among the view-only parameters, and shows the disinfection time re- PDIS: Monitoring period maining. Setting range: 0 … 30:0 … 24 h (dd:hh) During this time and after first activation, relay R2 is deactivated Default setting: 01:00 if storage cylinder top temperature reaches the temperature in TDIS + 5 °C, and activated again when storage cylinder top tem-...

  • Page 25: Option: Remaining Monitoring Time

    19.19 Option: remaining monitoring time The nMX parameter lets you set a maximum speed for the pump. CDIS: Remaining monitoring time Note! If electrical equipment with no speed control (e.g. Display range: 0 ... 30:0 ... 24 (dd:hh) valves) is used, set the relay speed to 100 % or set the pump control to OnOF to deactivate speed control.

  • Page 26: Thermal Energy Metering With Grundfos Direct Sensor™ Sensor Vfd

    PMAX: Flow rate in l/min Heat transfer medium: Setting range: 0.5 ... 100.0 water Default setting: 6.0 propylene glycol ethylene glycol Tyfocor® LS / G-LS MED%: Anti-freeze percentage in % by vol. (MED% is not dis- played if MEDT is set to 0 or 3) Setting range: 20 ...

  • Page 27: Period - Activation Condition

    19.28 Filling time If this function is activated, the following control parameters are available (tDTO, tFLL and tSTB): ODB: Drainback function tFLL: Filling time Setting range: ON, OFF Setting range: 1.0 ... 30.0 min Default setting: OFF Default setting: 5.0 min Note! If the drainback function ODB is activated, the cooling Parameter tFLL lets you set filling time.

  • Page 28: Functioning Mode

    19.31 Functioning mode MAN1, MAN2: Functioning mode Setting range: OFF , Auto, ON Default setting: Auto This parameter lets you select the unit of measurement in which you want to display temperatures and temperature differentials. You can switch from °C / K to °F / °Ra and back even during functioning.

  • Page 29: Installation Diagrams

    20 INSTALLATION DIAGRAMS System 1 - SOLAR HEATING WITH 1 STORAGE CYLINDER The controller calculates the temperature differential between collector sensor S1 and storage cylinder sensor S2. If the differ- ential exceeds or is equal to the set activation temperature dif- ferential (DT O), relay 1 activates the solar pump and the storage cylinder is charged until the deactivation temperature differen- tial (DT F) or maximum storage cylinder temperature (S MX) is...
  • Page 30 Sec. Description Range Default View-only parameters INIT ODB initialisation activated Filling time ODB STAB Stabilisation ODB Collector 1 temperature display TSTB Storage cylinder 1 bottom temperature display Storage cylinder 1 temperature display TSTT Storage cylinder 1 top temperature display TDIS Thermal disinfection temperature display Sensor 3 temperature display Sensor 4 temperature display VFD sensor temperature display...
  • Page 31 Sec. Description Range Default TCIN Inactive time 1 ÷ 60 GFD Grundfos Direct Sensor™ activation OFF , 12, 40, 40F OHQM Thermal energy metering ON - OFF PMAX Flow rate in l/min 0.5 ÷ 100 l/min Digital sensor for measuring flow rate OFF , 1, 2 MEDT Type of frost protection 0 ÷...
  • Page 32 System 2 - SOLAR WATER HEATING WITH SUPPLEMENTARY HEATING the thermal energy metering function (OHQM) is activated, sen- sors S4 and VFD can be used as flow and return sensors. The controller calculates the temperature differential between collector sensor S1 and storage cylinder sensor S2. If the differ- ential exceeds or is equal to the set activation temperature dif- ferential (DT O), relay 1 activates the solar pump and the storage cylinder is charged until the deactivation temperature differen-...
  • Page 33 Sec. Description Range Default View-only parameters INIT ODB initialisation activated Filling time ODB STAB Stabilisation ODB Collector 1 temperature display TSTB Storage cylinder 1 bottom temperature display TSTT Storage cylinder 1 top temperature display TDIS Thermal disinfection temperature display Sensor 3 temperature display Sensor 4 temperature display VFD sensor temperature display Return sensor temperature display...
  • Page 34 Sec. Description Range Default TCIN Inactive time 1 ÷ 60 AH O Thermostat activation temperature 0 ÷ 95 °C AH F Thermostat deactivation temperature 0 ÷ 95 °C t1 O Thermostat activation time 1 00:00 ÷ 23:45 00:00 hh:mm t1 F Thermostat deactivation time 1 00:00 ÷...
  • Page 35 System 3 - STANDARD SOLAR HEATING WITH EXCESS HEAT DISSIPA- age cylinder falls below the fixed safety deactivation tempera- TION ture of 95 °C [200 °F]. The controller calculates the temperature differential between Optionally, sensors S3 and S4 can be used for metering purposes. collector sensor S1 and storage cylinder sensor S2.
  • Page 36 Sec. Description Range Default View-only parameters INIT ODB initialisation activated Filling time ODB STAB Stabilisation ODB Collector 1 temperature display Storage cylinder 1 temperature display TSTT Storage cylinder 1 top temperature display Sensor 3 temperature display Sensor 4 temperature display VFD sensor temperature display Return sensor temperature display Flow sensor temperature display...

  • Page 37: Troubleshooting

    21 TROUBLESHOOTING FAULT CAUSE SOLUTION Sensor faulty. The code 888.8: conductor breakage appears in the corresponding − Check the sensor and the cable. The power indicator flashes red. The parameter. symbol appears fixed a the symbol Sensor faulty. The code -88.8: short flashes.
  • Page 38 FAULT CAUSE SOLUTION The collector pump runs at night. − Check the associated settings. Collector temperature is higher than out- − Check the functioning of the non-re- door temperature at night. turn valves. The storage cylinder goes cold overnight. Insufficient, loose or broken storage cyl- −...
  • Page 40 RIELLO S.p.A. 37045 Legnago (VR) - Italy Tel. 0442630111 - Fax 044222378 - www.riello.it The manufacturer strives to continuously improve all products. Appearance, dimensions, technical specifications, standard equipment and accessories are therefore liable to modification without notice.

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