Resol DeltaSol BX L Manual
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Resol DeltaSol BX L Manual

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DeltaSol
Manual for the
specialized craftsman
Installation
Operation
Functions and options
Troubleshooting
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 carefully.
BX L
®
from version 1.10
en-US/CA
Manual
www.resol.com

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  • Page 1 Troubleshooting The Internet portal for easy and secure access to your system data – www.vbus.net en-US/CA Thank you for buying this RESOL product. Manual Please read this manual carefully to get the best performance from this unit. www.resol.com Please keep this manual carefully.
  • Page 2 Note: labelled with the CE mark. The Declaration of Conformity is available Notes are indicated with an information symbol. upon request, please contact RESOL. Note: Î Arrows indicate instruction steps that should be carried out. Strong electromagnetic fields can impair the function of the controller.

  • Page 3: Table Of Contents

    BX L solar controller DeltaSol ® The system controller DeltaSol ® BX L has been especially developed as an eco- equipped with a thermal disinfection function, tube collector-, thermostat-, heat nomical solution for multi-tank solar thermal systems. It features pre-programmed dissipation function and many more.

  • Page 4: Overview

    Standby: 0.58 W Temperature controls class: I Energy efficiency contribution: 1 % Mode of operation: type 1.B.C.Y action Rated impulse voltage: 2.5 kV Data interface: RESOL VBus ® , SD card slot VBus current supply: 35 mA ®...

  • Page 5: Installation

    Installation Electrical connection Mounting WARNING! Electric shock! Upon opening the housing, live parts are exposed! WARNING! Electric shock! Î Always disconnect the device from power supply Upon opening the housing, live parts are exposed! before opening the housing! Î Always disconnect the device from power supply before opening the housing! ATTENTION! ESD damage!

  • Page 6: Data Communication / Bus

    S4 = Sensor 4 (e. g. tank sensor tank 2) • RESOL GA3 Large Display module / SD3 Smart Display S5 = Sensor 5 (e. g. sensor collector 2) • RESOL AM1 Alarm Module A V40 flowmeter can be connected to the terminals V40 and GND (either polar- •...

  • Page 7: Overview Of Basic System Layouts

    Overview of basic system layouts 2-tank system with valve logic, 1 2-tank solar system with valve 2-tank solar system with pump 2-tank solar system with pump 3-tank solar system with valve pump, 3 sensors and 3-port valve logic and heat exchange control logic (page 14) logic and heat exchange control logic and heat exchange control...

  • Page 8: Systems

    Systems System 1 Sensors Relay 2-tank system with valve logic, 1 pump, 3 sensors and 3-port valve Temperature collector 1 / GND Solar pump R1 / N / PE Temperature tank base 2 / GND Free R2 / N / PE Free 3 / GND Free...
  • Page 9 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 10 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page PRIO1 Priority logic tank 1 OSTS Tank set option TST1 45 °C [120 °F] Set tank temperature tank 1 TST2 45 °C [120 °F] Set tank temperature tank 2 2 min Loading break time tRUN...
  • Page 11 System 2 2-tank solar system with valve logic and heat exchange control Designation Description Sensor/terminal TCOL Temperature collector TST1B Temperature tank 1 base TST1T Temperature tank 1 top TST2B Temperature tank 2 base TST2T Temperature tank 2 top optional: flowmeter Relay Description Solar pump...
  • Page 12 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 13 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page 2 min Loading break time tRUN 15 min Circulation runtime PSPEE Pause speed option PDELA Pump delay option COOL > Cooling functions OSYC* System cooling OSTC Tank cooling OHDP*...
  • Page 14 System 3 2-tank solar system with pump logic Designation Sensor/terminal Description TCOL Temperature collector TST1B Temperature tank 1 base Optional sensor for measurement purposes or options TST2B Temperature tank 2 base Optional sensor for measurement purposes or options Relay Description Solar pump tank 1 Solar pump tank 2 optional:...
  • Page 15 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 16 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page OSTS Tank set option TST1 45 °C [120 °F] Set tank temperature tank 1 TST2 45 °C [120 °F] Set tank temperature tank 2 Spread function option DTSE Spread difference 20 K [40 °Ra]...
  • Page 17 System 4 2-tank solar system with pump logic and heat exchange control Designation Description Sensor/terminal TCOL Temperature collector TST1B Temperature tank 1 base TST1T Temperature tank 1 top TST2B Temperature tank 2 base TST2T Temperature tank 2 top optional: flowmeter Relay Description Solar pump tank 1...
  • Page 18 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 19 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page DTSE Spread difference 20 K [40 °Ra] SLSTR Spread function option 2 min Loading break time tRUN 15 min Circulation runtime PSPEE Pause speed option COOL >...
  • Page 20 System 5 3-tank solar system with valve logic and priority logic Sensor/terminal Designation Description TCOL Temperature collector TST1B Temperature tank 1 base Optional sensor for measurement purposes or options TST2B Temperature tank 2 base TST3B Temperature tank 3 base Optional sensor for measurement purposes or options Relay Description...
  • Page 21 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number VLOG Valve logic LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1...
  • Page 22 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page CFR F Antifreeze temperature collector off 5.0 °C [42.0 °F] FRPST Antifreeze tank selection LLOGI > Loading logic LOGIC PRIO Priority logic PRIO1 Priority logic tank 1 OSTS Tank set option TST1...
  • Page 23 System 6 3-tank solar system with pump logic and priority logic Sensor/terminal Designation Description TCOL Temperature collector TST1B Temperature tank 1 base Optional sensor for measurement purposes or options TST2B Temperature tank 2 base TST3B Temperature tank 3 base Optional sensor for measurement purposes or options Relay Description...
  • Page 24 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 25 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page LOGIC PRIO Priority logic PRIO1 Priority logic tank 1 PRIO2 Priority logic tank 2 OSTS Tank set option TST1 45 °C [120 °F] Set tank temperature tank 1 TST2 45 °C [120 °F] Set tank temperature tank 2...
  • Page 26 System 7 Solar system with tank loading in layers and 2nd tank Note A solar system with tank loading in layers is implemented as a 2-tank system. (tank base = tank 1; tank top = tank 2; additional tank = tank 3) Sensor/ Designation Description terminal...
  • Page 27 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number VLOG Valve logic LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1...
  • Page 28 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page CFR F Antifreeze temperature collector off 5.0 °C [42.0 °F] FRPST Antifreeze tank selection LLOGI > Loading logic LOGIC PRIO Priority logic PRIO1 Priority logic tank 1 PRIO2 Priority logic tank 2 OSTS...
  • Page 29 System 8 Solar system with east-/west collectors and 2 tanks (valve logic) Sensor/ Designation Description terminal TCOL1 Temperature collector 1 TST1B Temperature tank 1 base TCOL2 Temperature collector 2 TST2B Temperature tank 2 base Optional sensor for measure- ment purposes or options Relay Description Solar pump collector 1...
  • Page 30 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1 10.0 K [20.0 °Ra]...
  • Page 31 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page TCEN2 19:00 Tube collector ending time 2 TCRU2 30 s Tube collector runtime 2 TCIN2 30 min Tube collector standstill interval 2 LLOGI > Loading logic LOGIC PRIO Priority logic...
  • Page 32 System 9 3-tank solar system with east-/west collectors Sensor/ Designation Description terminal TCOL Temperature collector 1 TST1B Temperature tank 1 base TCOL2 Temperature collector 2 TST2B Temperature tank 2 base TST3B Temperature tank 3 base optional: fl owmeter Relay Description Solar pump tank 1 Solar pump tank 2 Valve tank 1/2, 3...
  • Page 33 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page System ROSA 0000 ROSA number VLOG Valve logic LOAD1 > Loading 1 DT1O Switch-on temperature difference 1 6.0 K [12.0 °Ra] DT1F Switch-off temperature difference 1 4.0 K [8.0 °Ra] DT1S Set temperature difference 1...
  • Page 34 Adjustment channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page CMAX2 Maximum collector temperature 2 110 °C [230 °F] OCMI2 Collector minimum limitation option 2 CMIN2 Minimum collector temperature 2 10.0 °C [50.0 °F] OTCO2 Evacuated tube collector function option 2 TCST2 07:00...
  • Page 35 Electrical connection of a high-efficiency pump (HE pump) Speed control of a HE pump is possible via a PWM signal. In addition to the relay connection, the pump must also be connected to the controller via the VBus ® PWM interface adapter. In the PUMP adjustment channel, ADAP has to be selected. Temp.

  • Page 36: Operation And Function

    Operation and function Menu structure Status level Buttons TCOL TST1B The controller is operated via the 7 buttons next to the display. They have the following functions: Menu level ❶ Button - scrolling upwards ❸ Button - scrolling downwards Adjustment level LOAD1 DT O ❷...

  • Page 37: Shortcut

    Shortcut Tool bar The additional symbols in the tool bar indicate the current system state. Symbol normal fl ashing ⓵ Relay active Maximum tank limitation active / maxi- Collector cooling function active ☼ mum tank temperature exceeded System cooling, tank cooling active The controller is equipped with a shortcut that enables a quick access to the MAN Antifreeze function activated Collector minimum limitation active...
  • Page 38 System screen in the system monitoring display The system selected is indicated in the system monitoring display. It consists of several system component symbols which are – depending on the current status of the system – either flashing, permanently shown or “hidden”. Upper tank sensor Temperature sensors Tank 2 or backup heating...

  • Page 39: Further Indications

    Further indications Display Description Fault indication TFHQM Temperature flow energy metering If the controller detects a malfunction, the directional pad flashes red and the sym- bols of the warning triangle and the wrench are additionally displayed. TRHQM Temperature return energy metering n1 % Speed relay 1 Smiley...

  • Page 40: Initial Commissioning

    If the desired system layout has been selected in the ARR channel, the ROSA channel can be skipped. confi rming a value System: Î Adjust the desired system. to the next parameter ROSA: Î Enter the 4-digit number given by the RESOL Online Service Assistant.
  • Page 41 Valve logic: Note Î Adjust the valve variant of the 3-port valves The valve variant can only be adjusted in systems with two 3-port valves (ARR 5,7,9). Maximum tank temperature: Î Adjust the maximum tank temperature In 3-tank systems, the adjustment has to be car- ried out for S2MAX and S3MAX as well.

  • Page 42: Functions And Options

    Functions and options Display of temperatures at S3, S4 and S5 Status level Note The values and adjustment channels shown depend on the selected system, the functions and options and will only be displayed in the installer level. Display of collector temperatures S3, S4, S5 Sensor temperatures Display...
  • Page 43 Display of fl ow rate symbol fl ashes and the security enquiry appears. Î Confi rm the security enquiry by selecting “Yes” Î Confi rm the reset with the set button ➄ in order to fi nish the reset. In order to interrupt the RESET process, do not press any button for about 5 s. The display returns to the display mode.
  • Page 44 Display of monitoring period Display of time CDIS Time Countdown of the monitoring period Time Display range: 0 … 30:0 … 24 (dd:hh) Adjust the current clock time. If the thermal disinfection option (OTDIS) is activated and the monitoring period is in progress, the remaining time of the monitoring period is displayed as CDIS (in The following display channels are only indicated when the corresponding function hours and minutes), counting backwards.

  • Page 45: Adjustment Channels

    ΔT control Display of blocking protection time BLPR1(2, 3, 4) LOAD(1, 2, 3) / DT1(2, 3) O Blocking protection active Switch-on temperature diff. Adjustment range: 1.0 … 50.0 K [2.0 … 90.0 °Ra] In order to protect the pumps against blocking after standstill, the controller is in steps of 0.5 K [1.0 °Ra] equipped with a blocking protection function.
  • Page 46 Speed control Maximum tank temperature LOAD(1, 2, 3) / DT1(2, 3) S LOAD(1, 2, 3) / S1(2, 3) MAX Set temperature difference Maximum tank temperature Adjustment range: 1.5 … 50.0 K [3.0 … 90.0 °Ra] Adjustment range: 4 … 95 °C [40 … 200 °F] in steps of 0.5 K [1.0 °Ra] in steps of 1 °C [2 °F] Factory setting: 10.0 K [20.0 °Ra]...
  • Page 47 Loading tank 2 and tank 3 Adjustment for a high-effi ciency pump (HE pump) with speed control via adapter: Note • PSOL : PWM signal PWM A for R1, PWM B for R2 In 3-tank systems, the reference sensor can only be selected for the nu- merically 1st tank.
  • Page 48 Maximum speed Collector cooling PUMP1 (2, 3) / n1 (2, 3) HI COL(1,2) / OCCO(1,2) Speed control Selection: OFF / ON Adjustment range: 30 … 100 %; Factory setting: OFF 20 … 100 % if ADAP and PSOL are adjusted This function is used for keeping the system temperatures and consequently the in steps of 5% thermal load as low as possible.
  • Page 49 Minimum collector limitation COL / OTCO (1, 2) / TCST (1, 2) COL(1,2) / OCMI(1,2) Starting time Collector minimum temp. Adjustment range: 00:00 … 23:00 Selection: ON / OFF in steps of 01:00 Factory setting: OFF Factory setting: 07:00 COL (1,2) / OCMI(1,2) / CMIN(1,2) COL / OTCO (1, 2) / TCEN (1, 2) Collector minimum temp.
  • Page 50 Antifreeze function COL / OTCO (1, 2) / TCIN (1, 2) COL (1) / OCFR Standstill interval Antifreeze function Adjustment range: 5 … 60 min Selection: ON / OFF in steps of 00:01 Factory setting: OFF Factory setting: 30 min This function helps overcome the non-ideal sensor position with some tube collectors.
  • Page 51 LLOGI / PRIO1 (2, 3) COL (1) / OCFR / FRPST Priority Tank sensor selection Adjustment range: 1, 2, 3 (in 2- and 3-tank systems only) Factory setting: 1 Selection: 1, 2, 3 Factory setting: 1 The antifreeze function activates the loading circuit between the collector and the tank when the collector temperature falls below the adjusted temperature CFR O.
  • Page 52 1. In tank sequence control (PRIO), a priority (1 = highest priority) is assigned to This option is only available if each tank has its own pump (ARR = 3, 4, 6). the tank (PRIO1 = tank 1, PRIO2 = tank 2; the priority of the 3rd tank is deter- mined by the priority of the fi rst 2 tanks).
  • Page 53 Tank set option LLOGI / TST3 LLOGI / OSTS Set temperature tank 3 Tank set option Adjustment range: 4 … 85 °C [38 … 184 °F] Selection: ON / OFF Factory setting: OFF in steps of 1 °C [2 °F] Factory setting: 45 °C [120 °F] Additionally, the following options can be activated: Tank set option OSTS: With this function, a set temperature can be adjusted...
  • Page 54 Pause control LLOGI / PRIO / DTSE Temperature diff. spreaded loading LLOGI / PSPEE Adjustment range: 20 … 90 K [40 … 160 °Ra] Pause speed in steps of 1 K [2 °Ra] Selection: ON / OFF Factory setting: 40 K [70 °Ra] Factory setting: OFF If the pause speed is activated, the relay of the tank which has been loaded last remains switched on during the loading break time.
  • Page 55 System cooling The system cooling function aims to keep the solar system operational for a longer time. The function overrides the maximum tank temperature to provide thermal relief of the collector fi eld and the heat transfer fl uid on hot days. If the tank temperature is higher than the adjusted maximum tank temperature and the switch-on temperature difference DTCO is reached, the solar system remains activated or is switched on.
  • Page 56 Heat dump COOL / HDREL COOL / OHDP Heat dump relay Heat dump Selection: ON / OFF Selection: system dependent Factory setting: OFF Factory setting: 3/4 If the heat dissipation function OHDP is activated, the selected relay is energized with 100 %, if the collector temperature reaches the adjusted collector overtem- perature OTCL.
  • Page 57 Additionally, minimum and maximum temperature limitations and the correspond- ing switch-on and switch-off differences can be set for the independent tempera- ture differential control. Both switch-on and switch-off temperature differences DT4O and DT4F as well as the set temperature difference DT4S and rise RIS4 are valid.
  • Page 58 Minimum temperature limitation for the heat exchange Note The optional ΔT function is available in system 1 and 3 only. DT4 / MIN4O Switch-on temperature ODTFT / DT4O Adjustment range: 0.0 … 94.5 °C [30.0 … 199.0 °F] Switch-on difference in steps of 0.5 °C [1.0 °F] Adjustment range: 1.0 …...
  • Page 59 DT4 / TH1F ODTFT / DTREL Switch-off temperature Relay Adjustment range: 0.0 … 95.0 °C [30.0 … 200.0 °F] Selection: System 1: R2, R4 in steps of 0.5 °C [1.0 °F] System 3: R3, R4 Factory setting: 60.0 °C [140.0 °F] Factory setting: 4 If the adjusted value TH1O is exceeded, the relay will be switched on.
  • Page 60 The fi rst time frame is factory set from 06:00 to 22:00. If the switch-on and switch of times of a frame are set to an identical value, the time frame is inactive. If all time frames are set to 00:00, the thermostat function is solely temperature dependent.
  • Page 61 OTH / STH MAN / MAN4 Thermostatic backup heating sensor Adjustment range: Auto, ON, OFF Selection: S3, S5 Factory setting: Auto Factory setting: S3 / S5 For control and service work, the operating mode of the controller can be manu- Depending on the system selected, the sensor for the thermostatic backup heating ally adjusted.
  • Page 62 Option: Thermal disinfection (OTDIS) OTDIS OTDiS / TDIS Thermal disinfection function Disinfection temperature Adjustment range: ON / OFF Adjustment range: 0 … 95 °C [30 … 200 °F] Factory setting: OFF in steps of 1 °C [2 °F] Factory setting: 60 °C [140 °F] This function helps to contain the spread of Legionella in the upper DHW tank zone by systematically activating the backup heating.
  • Page 63 Thermal disinfection with starting delay OTDIS / TSDIS OTDIS / SDIS Sensor thermal disinfection Starting time Adjustment range: 2,3,4,5 Adjustment range: 0:00 … 24:00 Factory setting: system dependent Factory setting: 00:00 full hours only For this function, free sensors at an appropriate position can be selected. When a starting time for thermal disinfection with starting delay is adjusted, back- up heating activation will be delayed until that time, even after the monitoring period has ended.
  • Page 64 Flow rate detection type: 1 : fi xed fl ow rate value 2 : V40 With this function, e. g. a valve can be controlled in parallel to the pump via a separate relay PARRE. If solar loading takes place (R1 and/or R2) or if a solar function is active, the relay selected will be energized.
  • Page 65 Note Energy metering with V40 fl owmeter The energy metering calculation (estimation) uses the difference be- The energy metering calculation uses the difference between the fl ow and return tween the fl ow and return temperatures and a fl ow rate value calculated temperatures and the volume fl ow transmitted by the fl owmeter.
  • Page 66 Adjustment range: 0000 … 9999 Factory setting: 2010 In the ROSA channel, the 4-digit number given by the RESOL Online Service As- sistant can be entered. The following table shows the numbers available for the BX L with the correspond- ing system layouts.
  • Page 67 Note Language Because of the increasing size of the data packets, the remaining logging time does not decrease linearly. The data packet size can increase, e. g. with the increasing operating hours value. Valve logic LANG Language Adjustment range: dE, En, ES, Fr Factory setting: En In this adjustment channel, the menu language can be chosen.
  • Page 68 OSDC / LOGI OSDC / FORM Logging interval Format card Adjustment range: 1 … 1200 s Formatting the SD card Factory setting: 60 s Î Select the menu item FORM Î During the formatting process, --FORM will be displayed. The content of the card will be deleted and the card will be formatted with the FAT 16 fi le system.

  • Page 69: Overview Of Options And Their Para Meters

    Overview of options and their para meters In the following, the additional options and para meters are listed. The options and parameters displayed depend on the system as well as on the op- tions and functions which have been selected. Some of the options and para meters will only be displayed, if they are available with the individual adjustments.
  • Page 70 Channels Channel Sub channel 1 Sub channel 2 Factory setting Change to Description Page PUMP2 PSOL Speed variant pump 2 n2LO 20 % Minimum speed n2HI 100 % Maximum speed PUMP3 OnOF Speed variant pump 3 n3LO 30 % Minimum speed n3HI 100 % Maximum speed...

  • Page 71: User Code And Short Menu - Adjustment Values

    User code and short menu - Adjustment values Messages In the case of an error, the directional pad flashes red and a message is indicated Code in the status display. A warning triangle is additionally indicated. If more than one The access to some adjustment values can be restricted via a user code (cus- error or fault condition has occurred, only the one with the highest priority will be tomer).

  • Page 72: Troubleshooting

    1136 100 212 1385 The fuse can then be replaced. 1155 105 221 1404 1175 110 230 1423 1194 115 239 1442 Resistance values of Pt1000 sensors Note: For answers to frequently asked questions (FAQ) see www.resol.com.
  • Page 73 Pump is overheated, but no heat transfer from the collector to the tank, 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 74 The solar circuit pump does not work, although the collector is considerably Insulation close enough to the tank? warmer than the tank. Replace insulation or increase it. Display illuminated? button ➄ If not, press Are the tank connections insulated? Display illuminated again? There is no current;...

  • Page 75: Accessories

    SP10. V40 flowmeter The RESOL V40 is a measuring instrument for detecting the flow of water or water / glycol mixtures. After a specific volume has passed, the V40 reed switch sends an impulse to the calorimeter. The heat quantity used is calculated by the calorimeter using these impulses and the measured temperature difference with the help of pre-defined parameters (glycol type, concentration, heat capacity, etc.).

  • Page 76: Visualization Modules

    Smart Display SD3 / Large Display GA3 The AM1 Alarm module is designed to signal system failures. It is to be connected The RESOL Smart Display is designed for simple connection to RESOL controllers with RESOL VBus . It is used for visualizing data issued by the controller: collec- to the VBus ®...

  • Page 77: Index

    Index Minimum speed ......................... 47 Antifreeze function ......................50 Minimum temperature limitation .................. 58 Blocking protection time, display channel ..............45 Monitoring period, display channel................44 Mounting ..........................5 Collector cooling ......................48 Collector emergency shutdown ..................48 Operating hours counter ....................43 Collector temperatures, display channel ..............
  • Page 80 - they only represent use outside the copyright requires the approval of RESOL – Elektronische Rege- some examples. They can only be used at your own risk. No liability is assumed for lungen GmbH.

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