Regulus SRS3 Installation, Wiring And Operation Instructions
  1. Manuals
  2. Brands
  3. Regulus Manuals
  4. Controller
  5. SRS3
  6. Installation, wiring and operation instructions

Regulus SRS3 Installation, Wiring And Operation Instructions

Hide thumbs Also See for SRS3:
Table of Contents

Advertisement

Quick Links

Download this manual
Installation, Wiring and Operation Instructions
REGULUS SRS3 Controller
EN
v. 2.0

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SRS3 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Regulus SRS3

Summary of Contents for Regulus SRS3

  • Page 1 Installation, Wiring and Operation Instructions REGULUS SRS3 Controller v. 2.0...

  • Page 2: Table Of Contents

    CONTENTS 5.15. - „Party function“ Declaration 5.16. - Energy saving mode General Information 5.17. - TecoS3 Explanation of symbols Changes to the Controller 6. - Protective functions 6.1. - Seizing protection Specifi cation 6.2. - Frost protection 6.3. - System protection Description 6.4.
  • Page 3 This Instruction Manual applies to the following hardware version: SRS3 1 output mechanical relay, 230VAC 1 output electronic relay with a standard pump speed control 1 PWM/0-10V output for low-energy pumps 3 inputs for Pt1000 temperature sensors...

  • Page 4: Declaration

    Safety Instructions Declaration The manufacturer declares that the SRS3 Solar Controller is marked with the CE mark and conforms to the following relevant safety regulations: - Directive 2006/95/ES - EC low voltage directive (LVD) - Directive 2004/108/ES - EC electromagnetic compatibility directive (EMC)

  • Page 5: Changes To The Controller

    Safety Instructions Changes to the Controller • No interference to the controller is allowed except for when approved by the Manu- facturer in writing. • It is forbidden to install any additional device into the controller that has not been tested together with the controller.

  • Page 6: Specifi Cation

    T2A / 250V slow blow IP protection IP40 El. protection class Overvoltage category Pollution degree SRS3 Mechanical relay 460VA (AC1), 460W /AC3) 1 (R2) Electronic relay min 5W, max.120W pro AC3) 1(R1) Pt1000 sensors, from -40 °C to +300 °C...

  • Page 7: Description

    Description Description SRS3 Controller is designed for automatic control of solar thermal systems. The SRS3 model is intended to control solar systems with up to 2 independent solar arrays and one or two heat sinks. The heat sink can be a storage water heater, a heat exchanger for a swimming pool, and a thermal store for heating.

  • Page 8: Hydraulic Variants

    Description Hydraulic variants 1. Solar system with a storage tank 15. Solar system with 2 collector arrays (East/West) 2. Solar system with a directly connected swimming pool 16. Solar system with 2 collector arrays and 2 pumps 3. Solid-fuel boiler 17.

  • Page 9: Wall Installation

    Installation Wall installation Install the controller in dry areas only . Warning Installation instructions: 1. Unscrew cover screw completely. C.1.1 2. Carefully pull upper part of housing from lower part. 3. Set the upper part of housing aside, being sure not to damage the electronics when doing so.

  • Page 10: Electrical Wiring

    Installation Electrical wiring Before working on the unit, switch off the power supply and secure it against being switched on again! Check for the absence of power! Electric wiring may only be done by a specialist in compliance with valid Danger rules.

  • Page 11: Installing The Temperature Sensors

    Wiring instructions: C 2. 1 Wiring instructions: C.2.1 1. Select a suitable hydraulic scheme (D.1 to D.20). 2. Open the controller as described in C1 3. Strip the cable by 55 mm max., insert and fi t the cable strain relief. Strip the last 8-9 mm of all the wires (Fig.

  • Page 12: Terminal Connection Diagrams

    Installation D. - Terminal block wiring Sensor connection – max 12V Relay Mains voltage – Kleinspannungen Relais Mains 100 - 240V 50Hz max. 12V Mains voltage 230V Danger Warning Low voltage, max. 12V– sensor connection Mains voltage 230V 50Hz Terminal: connection for: Terminal: connection for: S1 (2x)
  • Page 13 Installation Terminal wiring for separate variants Solar system with storage tank Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank S3 (2x) sensor 3 The polarity of the sensors is freely selectable.
  • Page 14 Installation Solid-fuel boiler Sensor connection Low voltage - sensor connection Mains side – max 12V – 230V 50Hz Terminal: connection for: Danger Warning S1 (2x) sensor solid-fuel boiler S2 (2x) sensor 2 storage tank S3 (2x) sensor 3 The polarity of the sensors is freely selectable. Mains voltage - 230V 50Hz Mains Terminal:...
  • Page 15 Installation Return line preheating Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – 230V 50Hz – max 12V Warning Danger S1 (2x) sensor 1 storage tank S2 (2x) sensor 2 heating return S3 (2x) sensor 3 The polarity of the sensors is freely selectable.
  • Page 16 Installation Differential ΔT controller (no solar functions) Sensor connection Mains side Low voltage - sensor connection – max 12V – 230V 50Hz Terminal: connection for: Danger Warning S1 (2x) sensor 1 (control) S2 (2x) sensor 2 (reference) S3 (2x) sensor 3 The polarity of the sensors is freely selectable.
  • Page 17 Installation Solar system with a swimming pool via heat exchanger Sensor connection Low voltage - sensor connection Mains side – max 12V Terminal: connection for: – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 swimming pool S3 (2x) sensor 3 heat exchanger The polarity of the sensors is freely selectable.
  • Page 18 Installation D.11 Solar system with a thermally stratifi ed storage tank Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank lower S3 (2x) sensor 3 storage tank upper The polarity of the sensors is freely selectable.
  • Page 19 Installation D.13 Solar system with a by-pass Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank S3 (2x) sensor 3 return The polarity of the sensors is freely selectable.
  • Page 20 Installation D.15 Solar system with 2 collector arrays (East/West) Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector 1 S2 (2x) sensor 2 storage tank S3 (2x) sensor 3 collector 2 The polarity of the sensors is freely selectable.
  • Page 21 Installation D.17 Solar system with 2 storage tanks and a zone valve Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank 1 S3 (2x) sensor 3 storage tank 2...
  • Page 22 Installation D.19 Solar system with two storage tanks and a heat exchange pump Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank 1 S3 (2x) sensor 3 storage tank 2...
  • Page 23 Installation D.21 Solar system + zone valve + thermostat Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – S1 (2x) sensor 1 collector Danger Warning S2 (2x) sensor 2 storage tank lower S3 (2x) sensor 3 storage tank upper The polarity of the sensors is freely selectable.
  • Page 24 Installation D.23 Solar system + cooling 1 Low voltage - sensor connection Sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger S1 (2x) sensor 1 collector Warning S2 (2x) sensor 2 storage tank S3 (2x) sensor 3 The polarity of the sensors is freely selectable.
  • Page 25 Installation D.25 Solar system + cooling 3 Sensor connection Low voltage - sensor connection Mains side Terminal: connection for: – max 12V – 230V 50Hz – Danger Warning S1 (2x) sensor 1 collector S2 (2x) sensor 2 storage tank lower S3 (2x) sensor 3 storage tank upper The polarity of the sensors is freely selectable.
  • Page 26 Installation D.27 2 temperature difference controllers 2×ΔT (no solar functions) Sensor connection Mains side Low voltage - sensor connection – max 12V – 230V 50Hz – Terminal: connection for: Danger Warning S1 (2x) sensor 1 S2 (2x) sensor 2 S3 (2x) sensor 3 The polarity of the sensors is freely selectable.

  • Page 27: Display And Input

    Controller Use Display and input The display (1) shows graphic and text info on the hydraulic variant, set and measured values and other text info. The LED lamp (2): lights up green - if a relay is closed and the controller works right lights up red - if the controller is set to automatic operation and all relays are open...

  • Page 28: Commissioning Help

    Settings Commissioning help The fi rst time the controller is turned on, language and clock need to be set. After that a query appears as to whether you want to parameterize the controller using the commissioning help or not. The commissioning help can also be termi- nated or called up again at any time in the special functions menu.

  • Page 29: Menu Structure

    Operation Menu structure The graphics or overview mode appears when no key has been pressed for 2 min- utes, or when the main menu is exited by pressing “esc“. Pressing any key (4) in graphics or over- view mode takes you directly to the main menu.
  • Page 30 Measurement values 1. - Measurement values Menu “1. Measurement values” serves to display the currently measured temper- atures. What measurement values are displayed depends on the selected program and the specifi c controller model. The menu is closed by pressing “esc” or selecting “Exit measurement values”.

  • Page 31: Statistics

    Statistics 2. - Statistics Menu “2. Statistics” is used for function control and long-term monitoring of the system. The menu is closed by pressing “esc” or selecting “Exit statistics”. For analysis of the system data it is essential that time is set accurately on the controller.

  • Page 32: Display Mode

    Display mode 3. - Display mode Menu “3. Display mode” is used to defi ne the controller’s display for normal opera- tion. This display is shown during current operation of the solar thermal system. It appears whenever two minutes go by without any key being pressed.

  • Page 33: Operation Mode

    This special operating mode is intended only for the fi lling procedure for a special „Drain Master System” with a fi ll level contact. It is not used in Regulus solar systems. However, if you activate it, be sure to terminate Caution the function when fi...

  • Page 34: Settings

    Settings 5. - Settings The system parameters are set in menu “5. Settings”. This does not under any circumstances replace the safety facilities to be provided by the customer! Warning The menu is closed by pressing “esc” or select- ing “Exit settings”. Various settings can be made depending on the selection of hydraulic variant 1-28.

  • Page 35: Tmax S2

    Temperature values which are set high will allow higher solar heat accu- mulation but it shall be checked that all system components are resist- ant to high temperatures and scalding protection is provided. Regulus Danger solar systems are safe for heating water up to 95 °C.

  • Page 36: T R2

    Settings 5.7. - ∆T R2 Switch-on/switch-off temperature difference for R2 output If the temperature difference between the reference sensors is higher than ΔT R2 and the other conditions are also met, then the controller switches the pump on. When the temperature difference drops below ΔT R2 Off, then the pump is switched off again.

  • Page 37: Priority Sensor

    Settings 5.10. - Priority sensor Charging priority in systems with two storage tanks A setting must be made as to which storage tank (storage tank sensor) has priority for charging. That one will be charged fi rst. A) After the desired temperature (TmaxSx) is reached in the higher priority storage tank, charging is diverted to the lower priority storage tank.

  • Page 38: Thermostat Periods

    Settings If the temperature increase does not reach the value set (Increase), the interruption is terminated and the lower-priority tank continues in being charged. Setting range: 1-10 °C/min /default setting: 3 °C/min 5.14. - Thermostat periods 5.17. - Doba provozu termostatu Set the desired periods of time when the thermostat should be active.

  • Page 39: Protective Functions

    Setting range Frost stage 2 : -25 to 8° C or off / Default setting : 5 °C This function causes energy loss via the collector! As Regulus solar systems are fi lled with antifreeze fl uid, the antifreeze protec- tion shall remain off.

  • Page 40: System Protection

    Protective functions Protective functions 6.3. - System protection Protection of the highest priority If „SProt Ton” is exceeded at the collector, the pump is switched off. The collector is left at high temperature. The pump is activated again when the temperature drops below „SProt TOff”.

  • Page 41: Cooling Functions

    Protective functions 6.4.1. - Cooling functions The cooling variants are set in program selection (7.1) Hydraulic Variant 14 Solar + cooling 1: If „CProt Ton” is exceeded at S1 (collector), cooling at R2 is switched on until the tem- perature drops to „CProt Toff”. If the storage tank exceeds „CProt Tmax storage”, the pump at R1 is switched off.

  • Page 42: Anti-Legionella

    Protective functions 6.7. - Anti-Legionella With the “AL function” activated the controller makes it possible to heat the storage tank up once at certain intervals the (“AL frequency”) to a higher temperature (“AL Tsetpoint S2”), assuming that the energy source allows this. Setting range AL function: ON or OFF /default setting: OFF Setting range AL Tsetpoint S2: 60°C to 99°C /default setting: 70°C Setting range AL frequency: 1 to 28 days/default setting: 7 days...

  • Page 43: Special Functions

    Special functions 7. - Special functions Menu “7. Special functions” is used to set basic items and expanded functions. Time and Date is the only function to be set by the user. Other functions may be set by a specialist only. Warning The menu is closed by pressing “esc”...

  • Page 44: Graph

    Special functions 7.2.1.2. - Show signal This option will display the set signal in a text and graphic form. 7.3. - Pump speed control 7.3.1. - Variants of speed control Off: There is no speed control. The connected pump is only switched on or off with full speed. Variant V1 - Control to the set ΔT, starts from max.

  • Page 45: Purging Time

    Special functions 7.3.2. - Purging time During this time the pump runs at its full speed (100 %) to ensure reliable starting. Only after this purging time does the pump run with speed control and switches to the max. or min. speed, depending on the variant set (V1-V4). Purging is not used for PWM/0- 10V output.

  • Page 46: Time And Date

    Special functions 7.4. - Time & date This menu is used to set the current time and date. For a proper working of the controller and analysis of the system data it is essential for the time to be set accurately on the controller. Please note that if the mains voltage is interrupted the clock continues to run for 24 hours and Caution then stops and needs to be reset after that.

  • Page 47: Heat Quantity

    Special functions 7.8. - Heat quantity When the heat quantity measurement mode is set to “Flow”, the approximate heat output is calculated using the values set by the user. These values are antifreeze type, glycol portion and fl ow rate. These values are then related to the temperature data from the collector and tank sensors.

  • Page 48: Start Help Function

    Special functions 7.9. - Start aid function With some solar thermal systems, namely with vacuum tube collectors, it may occur that measurement at the collector sensor takes too long or is not quite precise, which is often caused by the sensor not being placed at the hottest location. When the start aid function is activated, the following is performed: If the temperature at the collector sensor increases by the value specifi...

  • Page 49: Menu Lock

    Menu lock 8. - Menu lock Menu “8. Menu lock” can be used to secure the controller against unintentional changing of the set values. The menu is closed by pressing “esc” or select- ing ”Exit menu lock”. The menus listed below remain completely accessible despite the menu lock being activated, and can be used to make adjustments if necessary: 1.

  • Page 50: Service Values

    Service values 9. - Service values The menu “9. Service values” can be used for remote diagnosis by a specialist in the event of an error etc. Note down data at the time when an alarm or error occurs, e.g. into the following table.

  • Page 51: Language

    Language 10. - Language Menu “10. Language” can be used to se- lect the language for the menu guidance. This is queried automatically during initial commissioning.

  • Page 52: Malfunctions

    Malfunctions Z.1. Malfunctions with error messages If the controller detects a malfunction, the red light fl ashes and the warning symbol also appears in the display. If the error (LED fl ashes + is no longer present, the warning symbol warning symbol) changes to an info symbol and the red light no longer fl...

  • Page 53: Replacing The Fuse

    Malfunctions Replacing the fuse Repairs and maintenance may only be performed by a specialist. Before working on the unit, switch off the power supply and secure it against Danger being switched on again! Check for the absence of power! Only use the supplied spare fuse or a fuse of the same design with the following specifi...
  • Page 54 Useful hints and tricks Instead of setting the fl ow rate for the system using a fl ow rate limiter, it is better to adjust the fl ow rate using the switch on the pump and by means of the “Max. speed” setting on the controller (see 7.9.4 Max.
  • Page 56 02/2014 REGULUS spol. s r.o. Do Koutů 1897/3 http://www.regulus.eu 143 00 Praha 4 E-mail: sales@regulus.cz CZECH REPUBLIC...

Table of Contents