Resol DeltaSol BX Plus Manual
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Resol DeltaSol BX Plus Manual

Manual for the specialised craftsman
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DeltaSol
beginning with firmware version 2.07
Manual for the specialised
craftsman
Mounting
Connection
Operation
Troubleshooting
Application examples
The Internet portal for easy and secure access
to your system data – www.vbus.net
Thank you for buying this RESOL product.
Please read this manual carefully to get the best performance from this unit.
Please keep this manual safe.
BX Plus
®
en
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www.resol.com

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Summary of Contents for Resol DeltaSol BX Plus

  • Page 1 Application examples The Internet portal for easy and secure access to your system data – www.vbus.net Thank you for buying this RESOL product. Manual Please read this manual carefully to get the best performance from this unit. Please keep this manual safe.
  • Page 2 Safety advice Target group Please pay attention to the following safety advice in order to avoid danger and These instructions are exclusively addressed to authorised skilled personnel. damage to people and property. Only qualified electricians are allowed to carry out electrical works. Danger of electric shock: Initial commissioning must be effected by authorised skilled personnel.

  • Page 3: Table Of Contents

    BX Plus DeltaSol ® The DeltaSol BX Plus is the most versatile system controller for complex solar Easy combination and parameterisation of pre-programmed functions for several ® and heating systems. It is ideal to control a combination of solar and non-solar parts millions of hydraulic variants.

  • Page 4: Overview

    Overview Technical data Inputs: 8 Pt1000, Pt500 or KTY temperature sensor inputs (can optionally be • 5 relay outputs and 8 inputs for Pt1000, Pt500 or KTY temperature used for remote controls, operating mode switches or potential-free switches), 1 sensors impulse input for V40 flowmeters (can optionally be used for Pt1000, Pt500 or KTY • Up to 2 extension modules via VBus (21 sensors and 15 relays in...

  • Page 5: Installation

    Dimensions and minimum distances Installation Mounting WARNING! Danger of electric shock! Upon opening the housing, live parts are exposed! Î Always disconnect the device from power supply be- fore opening the housing! Note Strong electromagnetic fields can impair the function of the device. Î...
  • Page 6 Chap. 2.2...

  • Page 7: Electrical Connection

    Î If this is not possible, install a switch that can be accessed. If the mains cable is damaged, it must be replaced by a special connection cable which is available from the manufacturer or its customer service. DeltaSol BX Plus Made in Germany 100 ... 240 V~ 50-60 Hz R1-R4 1 (1) A (100 ...
  • Page 8 The V40 flowmeter can be connected to the terminals S9 / IMP1 and GND (either Note polarity). When Grundfos Direct Sensors are used, connect the sensor ground common terminal block to PE. Connect the irradiation sensor CS10 to the terminals CS10 and GND with cor- rect polarity.

  • Page 9: Data Communication / Bus

    Different solutions for visualisation and remote parameterisation are available on ments can be made. The commissioning menu can be repeated any time by means the website www.resol.com. On the website, firmware updates are also available. of a reset (see page 79). Additional adjustments will be deleted.

  • Page 10: Operation And Function

    Operation and function Selecting menu points and adjusting values During normal operation of the controller, the display is in the main menu. If no Buttons button is pressed for 1 min, the display illumination switches off. After 4 further The controller is operated via the 7 buttons next to the display. They have the minutes, the controller will display the home screen (see page 38).
  • Page 11 adjusted value (not yet confirmed) adjustment channel If only one item of several can be selected, they will be indicated with radio buttons. When one item has been selected, the radio button in front of it is filled. minimum value current value saved maximum value Values and options can be changed in different ways:...

  • Page 12: Adjusting The Timer

    Adjusting the timer When the Timer option is activated, a timer is in- dicated in which time frames for the function can be adjusted. In the Day selection channel, the days of the week are available individually and as frequently selected combinations.
  • Page 13 Copying a time frame: Changing a time frame: In order to copy time frames already adjusted into an- In order to change a time frame, proceed as follows: other day / another combination, proceed as follows: Î Choose the day / the combination into which the time frames are to be copied and select Copy from.

  • Page 14: Adjusting Optional Functions

    Resetting the timer: Adjusting optional functions In order to reset time frames adjusted for a certain day or combination, proceed as follows: Î Select the desired day or combination. In the Optional functions / Add new function menus, optional functions can be selected and adjusted.
  • Page 15 This allows an easy overview of functions already saved. With the menu item Funct., an optional function already saved can be temporarily An overview about which sensor has been allocated to which component and deactivated or re-activated respectively. In this case, all adjustments will remain which output has been allocated to which function is given in the Status menu.

  • Page 16: Output Submenu

    Output submenu The Output submenu is available in almost all optional functions. Therefore, it will If - is selected, the function will run normally in the software but will not operate not be explained in the individual function descriptions. an output. Relay and signal outputs can be activated separately. Depending on the adjustments made, the following results are possible: In this submenu, relays and / or signal outputs can be allocated to the function se- lected.
  • Page 17 Speed control In the Speed adjustment channel, the speed control for the output can be acti- vated or deactivated respectively. If Yes is selected, the channels Min., Max. and Adapter will appear. In the Min. adjustment channel, a relative minimum speed for a pump connected can be allocated to the output In the Max.

  • Page 18: Sensor Configuration

    Relay option Blocking protection If the Relay option is activated, a relay can be allocated to the output selection. In order to protect the pumps against blocking after standstill, the controller is equipped with a blocking protection option. This option can be activated in the PWM/0-10 V option output selection submenu.

  • Page 19: Commissioning

    Commissioning 1. Language: Î Adjust the desired menu language. When the hydraulic system is filled and ready for operation, connect the controller to the mains. The controller runs an initialisation phase in which the directional pad glows red. When the controller is commissioned or when it is reset, it will run a commis- sioning menu after the initialisation phase.

  • Page 20: Basic Systems

    Basic systems The controller is pre-programmed for different basic systems. The selection de- 7a. Scheme (if 6. = Scheme): pends on the number of heat sources (collector fields) and heat sinks (stores, pool). Î Enter the scheme number of the desired system. The selection of the basic solar system is one of the most important adjustments and is thus requested already in the commissioning menu.

  • Page 21: Overview Of Output And Sensor Allocation

    Overview of output and sensor allocation System 1.2.1 System 1.1.1 Relays; PWM/0-10 Sensors Relays; PWM/0-10 Sensors Solar pump R1; A Collector 1 Solar pump R1; A Collector 3-PV store 2 Store base Store 1 base Store 2 base R1; A R1;...
  • Page 22 System 1.2.2 System 1.2.3 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector Solar pump store 1 R1; A Collector Solar pump R1; A Store 1 base Solar pump store 2 R2; B Store 1 base 2-PV store 1 Store 2 base 2-PV store 2 Store 2 base R1;...
  • Page 23 System 1.3.1 System 1.3.2 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Solar pump R1; A Collector 1 Solar pump store 1 R1; A Store 1 base 2-PV store 1 Store 1 base Solar pump store 2 R2; B Store 2 base 2-PV store 2 Store 2 base Solar pump store 3...
  • Page 24 System 1.3.3 System 1.4.1 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Solar pump R1; A Collector 1 Solar pump R1; A Store 1 base 3-PV store 1 Store 1 base 2-PV store 1 Store 2 base 3-PV store 2 Store 2 base 2-PV store 2 Store 3 base...
  • Page 25 System 1.4.2 System 1.4.3 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Solar pump R1; A Collector 1 Solar pump store 1 R1; A Store 1 base 3-PV store 1 Store 1 base Solar pump store 2 R2; B Store 2 base 3-PV store 2 Store 2 base Solar pump store 3...
  • Page 26 System 2.1.1 System 2.1.2 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Pump collector 1 R1; A Collector 1 2-PV collector 1 Store base Pump collector 2 R2; B Store base 2-PV collector 2 Collector 2 Collector 2 Solar pump R3;...
  • Page 27 System 2.2.1 System 2.2.2 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Pump collector 1 R1; A Collector 1 Pump collector 1 R1; A Store 1 base Pump collector 2 R2; B Store 1 base Pump collector 2 R2; B Store 2 base 2-PV store 1 Store 2 base...
  • Page 28 System 2.2.3 System 2.2.4 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 2-PV collector 1 Collector 1 2-PV collector 1 Store 1 base 2-PV collector 2 Store 1 base 2-PV collector 2 Store 2 base Solar pump R3; A Store 2 base Solar pump store 1 R3;...
  • Page 29 System 2.2.5 System 2.3.1 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 2-PV collector 1 Collector 1 Pump collector 1 R1; A Store 1 base 2-PV collector 2 Store 1 base Pump collector 2 R2; B Store 2 base Solar pump R3;...
  • Page 30 System 2.3.2 System 2.3.3 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Solar pump store 1 R1; A Collector 1 2-PV collector 1 Store 1 base Solar pump store 2 R2; B Store 1 base 2-PV collector 2 Store 2 base Solar pump store 3 R3;...
  • Page 31 System 2.3.4 System 2.3.5 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Pump collector 1 R1; A Collector 1 2-PV collector 1 Store 1 base Pump collector 2 R2; B Store 1 base 2-PV collector 2 Store 2 base 3-PV store 1 Store 2 base Solar pump R3;...
  • Page 32 System 3.1.1 System 3.1.2 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 2-PV collector 1 Collector 1 Pump collector 1 R1; A Store base 2-PV collector 2 Store base Pump collector 2 R2; B Collector 2 Solar pump R3; A Collector 2 Pump collector 3 R3;...
  • Page 33 System 3.2.1 System 3.2.2 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 Pump collector 1 R1; A Collector 1 Pump collector 1 R1; A Store 1 base Pump collector 2 R2; B Store 1 base Pump collector 2 R2; B Store 2 base 3-PV store 2 Store 2 base...
  • Page 34 System 3.2.3 System 3.2.4 Sensors Relays; PWM/0-10 Sensors Relays; PWM/0-10 Collector 1 2-PV collector 1 Collector 1 2-PV collector 1 Store 1 base 2-PV collector 2 Store 1 base 2-PV collector 2 Store 2 base Solar pump R3; A Store 2 base Solar pump store 1 R3;...

  • Page 35: Main Menu

    Main menu The following menus are available: • Status • Solar • Arrangement • Heating • HQM • Basic settings • SD card • Manual mode • User code • Inputs/Modules Î Select the menu area by pressing buttons ❶ and ❸. Î...

  • Page 36: Menu Structure

    Menu structure Main menu Status Solar Solar Basic setting Basic setting Arrangement System Optional functions Heating Collector Function control Store … Basic settings Loading logic SD card Arrangement … Manual mode Optional functions User code Optional functions Parallel relay Inputs/Modules Heating Parallel relay Output...

  • Page 37: Status

    Status Solar The Status / Solar menu shows all status information of the solar system and all In the status menu of the controller, the status messages for every menu area can optional functions activated. be found. Arrangement Use the buttons ❷ and ❹ for scrolling through the status menu. The Status / Arrangement menu shows all status information of all activated op- tional functions of the arrangement.

  • Page 38: Home Screen

    Solar Error Display Monitoring function Cause code In this menu, all adjustments for the solar part of the arrangement can be made. The 0001 !Sensor fault Sensor line break Sensor line broken Solar menu consists of the following submenus: 0002 !Sensor fault Sensor short circuit Sensor line short-circuited...
  • Page 39 Collector (1 / 2 / 3) Store (1 / 2 / 3 / 4) Solar / Basic setting / Collector (1 / 2 / 3) Solar / Basic setting / Store (1 / 2 / 3 / 4) Adjustment Adjustment range / se- Adjustment Adjustment range / se- Description...
  • Page 40 Note Loading logic The switch-on temperature difference must be at least 0.5 K higher than the switch-off temperature difference. In multi-store-systems with differing set store / maximum store temperatures, all stores are first loaded up to their set store temperatures, then up to their maximum store temperatures (according to their priority and the store sequence control).

  • Page 41: Optional Functions

    As soon as the switch-on condition of the priority store is fulfilled, it will be loaded. Adjustment Adjustment range / se- Description Factory setting If the switch-on condition of the priority store is not fulfilled, loading of the subordi- channel lection nate store will be continued.
  • Page 42 Bypass This function can be used for avoiding an energy loss directly after the solar cir- cuit has been switched on. The still cold heat transfer medium in the pipework is diverted through a bypass past the store. Once the fluid is warm enough, the store can be loaded.
  • Page 43 CS bypass External heat exchanger Solar / Opt. functions / Add new function / Ext. HX Solar / Opt. functions / Add new function / CS bypass Adjustment Adjustment range / se- Adjustment Adjustment Description Factory setting Description Factory setting channel range / selection channel...
  • Page 44 If the Target temp. option is activated, the pump speed control logic will change. Adjustment Adjustment range / se- Description Factory setting The controller will remain at the minimum pump speed until the temperature at the channel lection allocated sensor exceeds the adjusted target temperature. Break Standstill interval 1 …...
  • Page 45 Target temperature Antifreeze Solar / Opt. functions / Add new function / Target temp. Solar / Opt. functions / Add new function / Antifreeze Adjustment Adjustment range / se- Adjustment Adjustment range / se- Description Factory setting Description Factory setting channel lection channel...
  • Page 46 Backup heating suppression Parallel relay Solar / Opt. functions / Add new function / Parallel relay Solar / Opt. functions / Add new function / BH suppress. Adjustment Adjustment range / se- Adjustment Adjustment range / se- Description Factory setting Description Factory setting channel...
  • Page 47 Cooling mode even if the corresponding maximum temperature is exceeded, but only up to the emergency shutdown temperature. Store loading will continue until all stores have reached the emergency shutdown temperature or until the switch-off temperature difference is reached. Collector cooling type If the collector maximum temperature is exceeded, the stores will be loaded above their respective maximum temperature.
  • Page 48 The parameter Initialis. is used for adjusting the period during which the switch- Adjustment Description Adjustment range / selection Factory setting on condition must be permanently fulfilled, before the filling process starts. channel Initialis. Initialisation time 1 … 100 s 60 s The Booster option is used for switching on a second pump when filling the solar system.
  • Page 49 Heat dump Reference relay Output Relais Bezugsrelais Solar / Opt. functions / Add new function / Heat dump Adjustment Adjustment Description Factory setting channel range / selection Exemplary figure of twin pumps in the solar flow with upstream flowmeter Output Output selection system dependent system dependent This function controls the equal distribution of pump runtime in systems with 2...
  • Page 50 Pump type This function can be used to detect malfunctions that impede the flow rate and to switch off the corresponding output. This will prevent system damage, e.g. through The allocated output will be energised with 100 %, if the collector temperature a dry run of the pump.

  • Page 51: Function Control

    Function control Adjustment Adjustment range / se- Description Factory setting channel lection Switch-off threshold 0.2 … 9.9 bar 5.0 bar Shutdown Shutdown option Yes, No Activated, Deactivated, Funct. Activation / Deactivation Activated Switch Sensor Switch input selection Save func- tion / Delete Save or delete function Note function...

  • Page 52: Holiday Function

    one of the following conditions has been detected for at least 1 min during the Holiday function period between 11 p.m. and 5 a.m.: • collector temperature exceeds 40 °C • the temperature difference exceeds DTOn The delay time of 1 min ensures that the message is not triggered by short-term fault conditions.

  • Page 53: Solar Expert Menu

    reached the emergency shutdown temperature or until the switch-off temperature Solar expert menu difference is reached. Collector cooling type If the collector maximum temperature is exceeded, the stores will be loaded above their respective maximum temperature. Store loading continues until all stores have reached the emergency shutdown tem- perature or until the collector temperature falls below the collector maximum temperature by at least 5 K.

  • Page 54: Arrangement

    Arrangement Adjustment Description Adjustment range / selection Factory setting channel Overrun Overrun option Yes, No Duration Overrun time 1 … 30 min 1 min Delay Delay option Yes, No Duration Delay time 1 … 30 min 1 min Funct. Activation / Deactivation Activated, Deactivated, Switch Activated Sensor Switch input selection...
  • Page 55 This function can be used for loading a store zone between 2 sensors. For monitor- Adjustment Description Adjustment range / selection Factory setting ing the switch-on and switch-off conditions, 2 sensors are used. The switch-on and channel switch-off temperatures are used as reference parameters. Interval Mixer interval 1 …...
  • Page 56 Heat exchange The allocated output is energised when all switch-on conditions are fulfilled: • the temperature difference between the allocated sensors has exceeded the switch-on temperature difference • the temperature difference between the allocated sensors has not fallen below the switch-off temperature difference •...
  • Page 57 If the Target temp. option is activated, the pump speed control logic will change. Adjustment Adjustment range / se- Description Factory setting channel lection The controller will remain at the minimum pump speed until the temperature at the Target temperature reference allocated sensor exceeds the adjusted target temperature.
  • Page 58 Function block Source sensor Output Return Arrangement / Opt. functions / Add new function / Function block sensor Adjustment Adjustment range / se- Description Factory setting channel lection system depend- Output Output selection system dependent Thermostat a Thermostat function a Yes, No This function can be used for transferring heat from a heat source to the heating Switch-on temperature ther-...
  • Page 59 The switching condition for the DT function is no longer considered fulfilled when Adjustment Adjustment range / se- Description Factory setting the adjusted switch-off temperature (DTOff) is reached. channel lection The DT function is equipped with a speed control function. A set temperature dif- Output Reference output 2 all outputs...
  • Page 60 Adjustment Adjustment range / se- Description Factory setting channel lection DT-S3>S4* Reference output Fl.rate Tha- S3* Thb-S4* Timer Sensor Switch input selection Function Save func- Thermostat a tion / Delete Save or delete function Thermostat b function DT function Timer This function can be used for operating an output depending on the measured Reference output Flow rate...
  • Page 61 Adjustment Adjustment range / se- Description Factory setting channel lection Interval Mixer interval 1 … 20 s Detection controller heating circuit HC intern. Yes, No active HC intern. Heating circuit allocation HC 1…7 Runtime Mixer runtime 10 … 600 s 105 s Time Time of automatic adjustment...

  • Page 62: Heating

    If a reference relay has been selected, the flow rate monitoring function will become Note active when the allocated relay switches on. In case of an error, the complete solar Activate and adjust the shared relays first. They will then be available in system will be shut down.
  • Page 63 Example: A d j u s t m e n t Adjustment range / se- Description Factory setting channel lection The potential-free relay R5 can be allocated to the shared relay Dem. 1, for exam- Increase for the set flow ple.

  • Page 64: Heating Circuits

    Voltage signal in V Valve Valves and parallel relays can use the shared relays Valve 1 and Valve 2. These shared relays are energised individually or along with a reference relay (e.g. loading pump). Note If the 0-10 V demand is used for DHW heating, the voltage signal will always be identical to TMax.
  • Page 65 Heating system submenu If the Curve mode is selected, the controller calculates a set flow temperature by In the Heating system submenu, a mode for the heating circuit control can be means of the outdoor temperature and the heating curve selected. In both cases, selected and adjusted.
  • Page 66 The start value of the set flow temperature can be influenced by the parameter TStart. In order to calculate the deviation of the room temperature from the adjusted set value, at least one sensor-type room thermostat is required (see page 67). The adjustments can be made with the Room therm.
  • Page 67 Outside the adjusted time frame the summer temperature night is valid. The operating mode switch of the room control unit is used for adjusting the op- erating mode of the controller. If a room control unit is used, the operating mode can be adjusted by means of the room control unit only.
  • Page 68 When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted. Outside these time frames, the adjusted room tem- perature is decreased by the Correction value. If the heating circuit is in cooling mode, the set room temperature is increased by the Correction value.
  • Page 69 When the countdown has elapsed, the chimney sweeper mode is automatically deactivated. If, during the countdown, button ➅ is again pressed for more than 5 s, the chimney sweeper mode will stop. Antifreeze function The antifreeze function of the heating circuit can be used to temporarily activate an inactive heating circuit during sudden temperature drop in order to protect it against frost damage.
  • Page 70 The Constant mode aims to keep the set flow temperature at a constant value When Humidity is selected, the controller calculates the dew point by means of which can be adjusted by means of the parameter TFlow. the humidity sensor. The minimum flow temperature results from the dew point plus the adjustable For activating cooling, 3 modes are available: correction value.
  • Page 71 off difference, the controller deactivates the heating circuit pump for the adjusted A d j u s t m e n t Adjustment range / se- Description Factory setting break time. After the break time has elapsed, the pump is activated for the runtime. channel lection Mode...
  • Page 72 A d j u s t m e n t Adjustment range / se- A d j u s t m e n t Adjustment range / se- Description Factory setting Description Factory setting channel lection channel lection Loading Boiler loading pump output system depend- Outdoor, Ext.

  • Page 73: Optional Functions

    10.3 Optional functions Adjustment Adjustment range / se- Description Factory setting channel lection Temperature Disinfection temperature 45 … 90 °C 60 °C Duration Disinfection period 0.5 … 24.0 h 1.0 h Cancellation Cancellation option Yes, No Cancellation Cancellation interval 1.0 … 48.0 h 2.0 h Start.
  • Page 74 Starting time delay Adjustment Adjustment Description Factory setting If the starting delay option is activated, a starting time for the thermal disinfection channel range / selection with starting delay can be adjusted. The activation of the backup heating is then Store Allocation solar store all solar stores...
  • Page 75 If SFB off is activated, DHW heating is suppressed when a selected solid fuel boiler Adjustment Adjustment range / se- Description Factory setting is active. channel lection If Solar off is activated, backup heating is suppressed when a previously adjusted Sen.
  • Page 76 Circulation Timer The output switches on during the adjusted time frames, outside of them it switch- es off. Thermal + Timer The output operates when the switch-on conditions of both above-mentioned var- iants are fulfilled. Demand Heating / Opt. functions / Add new function / Circulation The allocated flow switch is monitored for circuit continuity.

  • Page 77: Screed Drying

    10.4 Screed drying At the end of the menu, Cancel will be indicated instead of start. If Cancel is select- ed, screed drying will be cancelled immediately. Heating / Screed drying At the beginning of the screed drying function, the heating circuits selected are Adjustment Description Adjustment range / selection Factory setting...

  • Page 78: Hqm

    Button ➆ can be used any time for changing to the status or main menu of the Calorimeter controller in order to carry out adjustments. When the screed drying function has been successfully completed, the correspond- ing heating circuits will change to their operating modes selected. Screed drying will automatically be deactivated.

  • Page 79: Basic Settings

    The Grundfos Direct Sensors™ will only be available if they have been previously With an impulse counter, the impulses of a device with S0 output can be counted, registered in the Inputs/Modules menu. The impulse rate must be adjusted in that e.g.

  • Page 80: Sd Card

    The controller will only recognise a firmware update file if it is stored in a folder named RESOL on the first level of the SD card. ÎCreate a folder named RESOL on the SD card and extract the down- loaded ZIP file into this folder.

  • Page 81: Manual Mode

    Manual mode The operating mode can be selected for each individual output, too. The following options are available: = Output is switched off (manual mode) = Output is active at 100 % speed (manual mode) Auto = Output is in automatic mode Min.

  • Page 82: Inputs / Modules

    Inputs / Modules In this submenu, the type of the sensor connected can be adjusted for each individ- ual input. The following types can be selected: • S1 … S8: Switch, Fern (remote control), BAS (operating mode switch), Pt1000, Pt500, KTY, None •...
  • Page 83 Adjustment ATTENTION! Damage to the device! Description Adjustment range / selection Factory setting channel Sensor inputs which have been set to the sensor type switch can Type Grundfos-Direct-Sensor type RPD, VFD, RHD, None None only be used for connecting potential-free switches. Offset Sensor offset -15.0 …...

  • Page 84: Troubleshooting

    Check the supply line and recon- be blown. The fuse holder (which nect it. holds the spare fuse) becomes ac- cessible when the cover is removed. The fuse can then be replaced. Note For answers to frequently asked questions (FAQ) see www.resol.com.
  • Page 85 Pump is overheated, but no heat transfer from the collector to the store, flow Pump starts up very late. and return have the same temperature; perhaps also bubbling in the lines. Air or gas bubbles in the system? Switch-on temperature difference Vent the system;...
  • Page 86 The solar circuit pump does not work, although the collector is considerably Insulation close enough to the store? warmer than the store. Display illuminated? Replace insulation or increase it. If not, press button ➄. Display Are the store connections insulated? illuminated again? There is no current;...

  • Page 87: Accessories

    Accessories DL3 Datalogger VFD / RPD Grundfos Direct Sensors For visualisation via VBus.net, incl. SD card, mains adapter, Digital sensors in different versions network and VBus cable. ® DL2 Datalogger V40 Flowmeter For visualisation via VBus.net, incl. SD card and network The V40 is a measuring instrument for detecting the flow cable, mains adapter and VBus cable pre-connected.
  • Page 88 / LAN, VBus ® / Modbus and VBus / BACnet interface adapters ® With the RESOL VBus / USB interface adapter, the control- ® ler can be connected to the USB port of a PC via the VBus ® The VBus / LAN interface adapter is designed for the ®...

  • Page 89: Index

    Index Symbole DT function ........................... 59 Data logging .......................... 81 Day correction ........................65 Zahlen Day/Night operation ......................66 0-10 V boiler control ......................63 Day operation ........................68 Dew point ..........................70 Antifreeze function ......................69 DHW priority, heating circuit ..................69 Antifreeze, solar optional function ..................
  • Page 90 Manual mode ........................81 Screed drying ........................77 Maximum flow temperature ..................... 65 Sensor offset ........................83 Maximum store temperature ................... 39 Set flow temperature ......................65 Minimum flow temperature ....................65 Set store temperature ....................... 39 Mixer, optional arrangement function ................54 Shared relays ........................
  • Page 92 This mounting- and operation manual including all parts is copyrighted. Another use amples. They can only be used at your own risk. No liability is assumed for incorrect, outside the copyright requires the approval of RESOL – Elektronische Regelun- incomplete or false information and / or the resulting damages.

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