Roth BW/H Komfort HE Manual For The Specialised Craftsman
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Roth BW/H Komfort HE Manual For The Specialised Craftsman

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BW/H Komfort HE
beginning with fi rmware version 1.10
Manual for the specialised
craftsman
Mounting
Connection
operation
Troubleshooting
Application examples
en
Thank you for buying this product.
Manual
Please read this manual carefully to get the best performance from this unit.
Please keep this manual safe.

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Summary of Contents for Roth BW/H Komfort HE

  • Page 1 BW/H Komfort HE beginning with fi rmware version 1.10 Manual for the specialised craftsman Mounting Connection operation Troubleshooting Application examples Thank you for buying this product. Manual Please read this manual carefully to get the best performance from this unit.
  • 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 should carry out electrical works. Initial installation must be effected by the system owner or qualified personnel Instructions named by the system owner.

  • Page 3: Table Of Contents

    BW/H Komfort HE The BW/H Komfort HE is a system controller for multi-store solar and heating For an optimum overview, all sensor and relay allocations are listed in the service systems. menu. The intuitive commissioning menu leads you through the system configuration by requiring the most important adjustments directly after connecting the controller.

  • Page 4: Overview

    overview • 8 sensor inputs and 5 relay outputs Technical data • Data logging, storing and firmware updates via SD memory card Inputs: 8 (9) inputs for Pt1000, Pt500, or KTY temperature sensors, 1 V40 impulse • Pre-programmed optional functions such as: drainback option, input, inputs for 2 digital Grundfos Direct Sensors™, 1 input for a CS10 irradiation time-controlled thermostat function, thermal disinfection sensor...

  • Page 5: Optional Functions

    Installation optional functions Mounting Solar WARNING! Electric shock! Bypass Upon opening the housing, live parts are exposed! CS-Bypass Î Always disconnect the controller from power supply External heat exchanger before opening the housing! Tube collector Note: Target temperature Frost protection Strong electromagnetic fields can impair the function of the device.

  • Page 6: Electrical Connection

    Electrical connection WARNING! Electric shock! Upon opening the housing, live parts are exposed! Î Always disconnect the controller from power supply screw before opening the housing! ATTENTIoN! ESD damage! Electrostatic discharge can lead to damage to electronic components! Î Take care to discharge properly before touching cover the inside of the device! To do so, touch a grounded surface such as a radiator or tap!

  • Page 7: Data Communication / Bus

    Data communication / Bus The controller is equipped with a VBus for data transfer and energy supply to Connect the irradiation sensor CS10 to the terminals CS10 with correct polarity. ® To do so, connect the cable marked GND to the GND common terminal block, external modules.

  • Page 8: Step-By-Step Parameterisation

    Step-by-step parameterisation 4. Activating optional arrangement functions The BW/H Komfort HE is a controller that offers a broad variety of functions to the user. At the same time, the user has a lot of freedom in configurating them. Now, optional functions for the non-solar part of the arrangement can be selected, Therefore, to set up a complex system, careful planning is required.

  • Page 9: Operation And Function

    operation and function Selecting menu points and adjusting values Buttons The controller is operated via the 7 buttons next to the display: During normal operation of the controller, the display is in the main menu. If no button is pressed for 1 min, the display illumination goes out. After 3 more minutes, Button ❶...
  • Page 10 adjusted value (not yet confi rmed) Adjustment channel If only one item of several can be selected, they will be indicated with "radio but- tons". When one item has been selected, the radio button in front of it is fi lled. minimum value current value saved maximum value...
  • Page 11 Adjusting the timer When the Timer option is activated, a timer is indicated in which time frames for Adding a time frame: the function can be adjusted. The time frames can be adjusted in steps of First of all, an overview of the current adjustments is displayed. For each day of 15 min.
  • Page 12 Removing a time frame: In order to delete a time frame, proceed as follows: Î Determine the point from which on the time frame is to be removed by pressing button ❸. Î Move the cursor to the desired ending point of the time frame by pressing but- tons ❷...

  • Page 13: Menu Structure

    Menu structure Main menu Status Solar Solar Basic setting Arrangement Basic setting System Heating Optional functions Collector Function control Store Basic settings Expert Loading logic SD card Arrangement Manual mode optional functions Optional functions User code Parallel relay Parallel relay In- / Outputs Mixer Relay...

  • Page 14: Commissioning

    Commissioning When the hydraulic system is fi lled and ready for operation, connect the controller 1. Language: to the mains. Î Adjust the desired menu language. The controller runs an initialisation phase in which the directional pad fl ashes red. When the controller is commissioned or when it is reset, it will run a commis- sioning menu after the initialisation phase.
  • Page 15 Î Adjust the desired energy unit. 4. Daylight savings time adjustment: Î Activate or deactivate the automatic 8. Completing the commissioning menu: daylight savings time adjustment. After the system has been selected, a security enquiry appears. If the safety enquiry is confi rmed, the adjustments are saved.

  • Page 16: Basic Systems And Hydraulic Variants

    Basic systems and hydraulic variants The selection of the basic solar system is one of the most important adjustments System and is thus requested already in the commissioning menu. First, the basic system is adjusted by means of the number of stores and collectors fields, then the hydraulic variant.

  • Page 17: Overview Of Relay And Sensor Allocation

    overview of relay and sensor allocation System 1 Relay / sensor allocation Optional Optional Optional Optional Relay Solar pump function function function function Sensor Collector 1 Store base Free Free Free Free Free Free Free System 2 variant 1 S1 S6 Relay / sensor allocation Optional Optional...
  • Page 18 System 2 variant 2 Relay / sensor allocation Optional Optional Relay 2PV coll. 1 2PV coll. 2 Solar pump function function Sensor Collector 1 Store base Free Free Free Collector 2 Free Free Free System 3 variant 1 Relay / sensor allocation Optional Optional Optional...
  • Page 19 System 3 variant 2 Relay / sensor allocation Solar pump Solar pump Optional Optional Optional Relay Store 1 Store 2 function function function Sensor Collector Store 1 base Free Store 2 base Free Free Free Free Free System 3 variant 3 Relay / sensor allocation Optional Optional...
  • Page 20 System 4 variant 1 S1 S6 Relay / sensor allocation Optional Optional Pump coll. 1 Pump coll. 2 Relay Store 2 function function Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Sensor System 4 variant 2 S1 S6 Relay / sensor allocation Optional...
  • Page 21 System 4 variant 3 S1 S6 Relay / sensor allocation Solar pump Solar pump Optional 2PV coll. 1 2PV coll. 2 Relay store 1 store 2 function Collector 1 Store 1 base Free Store 2 base Free Collector 2 Free Free Free Sensor...
  • Page 22 System 5 variant 1 Relay / sensor allocation Optional Solar pump Relay Store 1 Store 2 Store 3 function Collector 1 Store 1 base Free Store 2 base Store 3 base Free Free Free Free Sensor System 5 variant 2 Relay / sensor allocation Solar pump Solar pump...
  • Page 23 System 5 variant 3 Relay / sensor allocation Optional Optional Solar pump Relay Store 1 Store 2 function function Collector 1 Store 1 base Free Store 2 base Store 3 base Free Free Free Free Sensor System 6 variant 1 Relay / sensor allocation Pump coll.
  • Page 24 System 6 variant 2 Relay / sensor allocation Solar pump Solar pump Solar pump 2PV coll. 1 2PV coll. 2 Relay store 1 store 2 store 3 Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free...
  • Page 25 System 6 variant 4 S1 S6 Relay / sensor allocation Optional Pump coll. 1 Pump coll. 2 Relay store 1 store 2 function Collector 1 Store 1 base Free Store 2 base Store 3 base Collector 2 Free Free Free Sensor System 7 variant 1 Relay / sensor allocation...
  • Page 26 System 7 variant 2 Relay / sensor allocation Optional Solar pump Relay Store 1 Store 2 Store 3 function Collector 1 Store 1 base Free Store 2 base Store 3 base Store 4 base Free Free Free Sensor System 7 variant 3 Relay / sensor allocation Solar pump Solar pump...

  • Page 27: Main Menu

    Main menu Solar In the Status / Solar menu, the status of the solar system, the solar loading and the In this menu, the different menu areas can be selected. selected optional functions are indicated. The following menus are available: •...

  • Page 28: Messages

    Messages Messages Error code Display Monitoring function Cause 0001 !Sensor fault! Sensor line break Sensor line broken 0002 !Sensor fault! Sensor short circuit Sensor line short-circuited Collector 50 K > than ∆T too high 0011 !∆T too high! store to be loaded Betw.

  • Page 29: Meas. / Balance Values

    Meas. / Balance values In the Status / Meas. / Balance values menu, all current measurement values as The progression chart shows the development of the temperature at the corre- well as a range of balance values are displayed. Some of the menu items can be sponding sensor over the last 24 hours.

  • Page 30: Basic Solar Settings

    Basic solar settings In this menu, all basic settings for the solar part of the arrangement can be adjusted. In this menu, the hydraulic system, which is the basis for the arrangement, can be adjusted. The setting is divided into systems and variants. Both system and variant have usually been adjusted during commissioning.
  • Page 31 Store (1 / 2 / 3 / 4) Loading logic Solar / Basic settings / Load. logic Solar / Basic settings / Store (1 / 2 / 3 / 4) Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel...

  • Page 32: Solar Optional Functions

    Solar optional functions Store sequence control: If the priority store cannot be loaded, the subordinate store next in priority is checked. If useful heat can be added, it will be loaded for the Circulation time. After this, the loading process stops and the controller monitors the increase in collector temperature during the loading break time Load.
  • Page 33 If Free is selected, the function will run normally in the software but will not operate a relay. In the sub-menu Controller, all free relays of the controller are displayed. If ex- ternal modules are connected and registered, their relays will be displayed in cor- responding sub-menus.
  • Page 34 Bypass Depending on whether the bypass is energised by a valve or by a second pump, a The Bypass function can be used for avoiding an energy loss from the store di- corresponding adjustment can be made in the menu item Variant. Depending on rectly after loading has started.
  • Page 35 CS bypass External heat exchanger Solar / opt. functions / Add new function / CS bypass Solar / opt. functions / Add new function / Ext. HX Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel selection channel...
  • Page 36 The heat exchanger is protected by a non-adjustable antifreeze function. If the runtime is set to more than 10 s, the pump will be run at 100 % for the fi rst 10 s of the runtime. For the remaining runtime, the pump will be run at the adjusted When the temperature at the Reference sensor ext.
  • Page 37 Antifreeze Afterheating suppression Solar / opt. functions / Add new function / Antifreeze Solar / opt. functions / Add new function / AH suppress. Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel selection channel selection Frost on...
  • Page 38 Parallel relay Solar / opt. functions / Add new function / Parallel relay System cooling: If the system cooling variant has been selected and the switch-on temperature dif- Adjustment Adjustment range / Description Factory setting channel selection ference is exceeded, store loading is continued even if the corresponding maximum Relay Parallel relay system dependent...
  • Page 39 Drainback option Solar / opt. functions / Add new function / Cooling mode Solar / opt. functions / Add new function / Drainback Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel selection channel selection Cooling logic variant Col.
  • Page 40 In a drainback system, the heat transfer fl uid will fl ow into a holding tank if solar loading does not take place. The drainback option initiates the fi lling process if solar loading is about to start. If the drainback option is activated, the following adjustment can be made: Note: Relay...
  • Page 41 Heat dump The Heat dump function can be used to direct excess heat generated by strong solar irradiation to an external heat exchanger (e. g. fan coil) in order to keep the collector temperature within the operating range. Whether the heat dump is activated via an additional pump or a valve can be ad- justed in the menu item Variant.
  • Page 42 Flow rate monitoring Pressure monitoring Solar / opt. functions / Add new function / Press. monit. Solar / opt. functions / Add new function / Flow rate mon. Adjustment Adjustment range / Adjustment range / Adjustment Description Factory setting Description Factory setting channel selection...

  • Page 43: Function Control

    Function control Note: Note: For the overpressure monitoring function, on always is at least 0.1 Only if the installer code is entered (see page 67), will the Function bar higher than off. The corresponding adjustment ranges will automat- control menu be available. ically adapt to that.

  • Page 44: Solar Expert Menu

    Solar expert menu Night circulation This function can be used for detecting thermal circulation inside the solar circuit that leads to an unwanted cooling of the store. A warning message will appear when one of the following conditions has been detected for at least 1 min during the period between 11 p.m.

  • Page 45: Arrangement

    Arrangement In this menu, all adjustments for the non-solar part of the arrangement can be The menu item Relay selec. is available in all optional functions. Therefore, it will made. not be explained in the individual function descriptions. A range of optional functions can be selected and adjusted. With this menu item, a relay can be allocated to the function.
  • Page 46 Parallel relay With the menu item Function, an optional function already selected can be tem- Arrangement / opt. functions / Add new function / Parallel relay porarily deactivated or re-activated respectively. In this case, all adjustments remain Adjustment Adjustment range / Description Factory setting stored, the allocated relays remain occupied and cannot be allocated to another...
  • Page 47 Mixer Boiler loading Arrangement / opt. functions / Add new function / Mixer Arrangement / opt. functions / Add new function / Boiler loading Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel selection channel selection Relay closed...
  • Page 48 Error relay Heat exchange Arrangement / opt. functions / Add new function / Error relay Arrangement / opt. functions / Add new function / Heat exchange Adjustment channel Description Adjustment range / selection Factory setting Adjustment Adjustment range / Description Factory setting channel selection...
  • Page 49 Solid fuel boiler When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted. Note: For information on timer adjustment see page 11. Sen. Source Arrangement / opt. functions / Add new function / Solid fuel boiler Adjustment Adjustment range / Description...
  • Page 50 Circulation The Circulation function can be used for controlling a circulation pump. For the control logic, 5 different variants are available: • Thermal • Timer • Thermal + Timer • Demand • Demand + Timer Arrangement / opt. functions / Add new function / Circulation If one of the variants is selected, the corresponding adjustment channels will appear.
  • Page 51 Demand Return preheating The allocated FS08 fl ow switch is monitored for circuit continuity. If circuit conti- nuity is detected at the fl ow switch, the relay switches on for the adjusted runtime. After the runtime has ended, the relay is switched off. During the adjusted break time, the relay remains switched off even if continuity is detected at the fl ow switch.
  • Page 52 Function block Reference relay Up to 5 reference relays can be selected. Whether the reference relays are to be switched in series (AND) or in parallel (OR) can be adjusted in the Mode channel. In the OR mode, the switch-on condition for the reference relay function is consid- ered fulfi lled when at least one of the reference relays is active.
  • Page 53 Irradiation switch Arrangement / opt. functions / Add new function / Function block Adjustment Adjustment range / Description Factory setting channel selection Relay Relay selection system dependent system dependent Thermostat a Thermostat a Yes, No Th-a on Switch-on temperature Thermostat a -40 … +250 °C +40 °C Th-a off Switch-off temperature Thermostat a -40 …...

  • Page 54: Heating

    Heating 10.1 Demands Heating / Demands In this menu, all adjustments for the heating part of the arrangement or for the heating circuits respectively can be made. Adjustment Adjustment range / Description Factory setting channel selection Demands can be activated, heating circuits can be parameterised and optional func- Dem.
  • Page 55 In this menu, up to 2 heating demands can be activated and adjusted. The characteristic curve of the 0-10 V signal as a function of the boiler set tem- perature are defined by means of 2 set points according to the specifications of Activated demands will be available for selection in the output alloca- the boiler manufacturer.

  • Page 56: Heating Circuits (With Em Extension Modules Only)

    10.2 Heating circuits (with EM Extension Modules only) Summer mode The Mode channel adjustment determines how the heating circuit is set to sum- mer mode: The controller is able to control 2 external, weather-compensated heating circuits by means of extension modules. If one or more extension modules are connected, they have to be registered with the controller.
  • Page 57 Heating curves When the Timer option is activated, a timer is indicated in which time frames for the function can be adjusted. Note: For information on timer adjustment see page 11. Backup heating mode: By means of the Mode parameter, the backup heating mode can be selected. In the Therm.
  • Page 58 Heating / Heating circuits / new HC… Adjustment Adjustment range / Adjustment Adjustment range / Description Factory setting Description Factory setting channel selection channel selection HC pump Heating circuit pump system dependent system dependent Room temperature 10 … 30 °C 18 °C TambSet Mixer open...

  • Page 59: Optional Functions

    10.3 optional functions If Free is selected, the function will run normally in the software but will not operate a relay. In the sub-menu Controller, all free relays of the controller are displayed. If ex- ternal modules are connected and registered, their relays will be displayed in cor- responding sub-menus.
  • Page 60 This function helps to contain the spread of Legionella in DHW stores by system- atically activating the backup heating. One sensor and one relay can be selected for this function. For thermal disinfection, the temperature at the allocated sensor has to be monitored. The monitoring period starts as soon as the temperature at the allocated sensor falls below the disinfection temperature.
  • Page 61 DHW heating Note: For information on timer adjustment see page 11. Heating / opt. functions / Add new function / DHW heating Adjustment Adjustment range / Description Factory setting channel selection Demand Demand relay selection system dependent system dependent The DHW heating is used for demanding a backup heating for heating the DHW Loading pump Loading pump option Yes, No store.

  • Page 62: Screed Drying

    10.4 Screed drying This function is used for time- and temperature-controlled screed drying in se- lectable heating circuits. At the beginning of the screed drying function, the selected heating circuits are put into operation for the adjusted rise time with the start temperature as the set fl ow temperature.

  • Page 63: Hqm

    Button ➆ can be used any time for changing to the status or main menu of the controller in order to carry out adjustments. When the screed drying function has been successfully completed, the corre- sponding heating circuits change to their operating mode. Screed drying is automatically deactivated.
  • Page 64 HQM / new HQM… When the Alternative unit is activated, the controller will convert the heat Adjustment Adjustment range / Description Factory setting quantity into the quantity of fossil fuels (coal, oil or gas) saved, or the CO emission channel selection saved respectively.

  • Page 65: Basic Settings

    Basic settings With an SD card, the following functions can be carried out: • Logging measurement and balance values. After the transfer to a computer, the values can be opened and visualised, e. g. in a spreadsheet. • Store adjustments and parameterisations on the SD card and, if necessary, re- trieve them from there.

  • Page 66: Manual Mode

    Manual mode Note: 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. Storing controller adjustments Î To store the controller adjustments on an SD card, select the menu item Save adjustments.

  • Page 67: User Code

    User code In- / outputs The access to some adjustment values can be restricted via a user code (customer). In the In- / outputs menu, external modules can be registered, sensor offsets can be adjusted and relay outputs can be confi gured. 1.

  • Page 68: Inputs

    16.2 Inputs In- / outputs / Inputs Adjustment Factory Description Adjustment range / selection channel setting S1 … S9 Sensor input selection Switch, KTY, Pt500, RTA11M, Type Selecting the sensor type Pt1000 Pt1000, None Switch inversion (only when Type = In this sub-menu, the type of the sensor connected can be adjusted for each indi- Inverted Yes, No...

  • Page 69: Outputs

    16.3 outputs In- / outputs / outputs Adjustment Adjustment range / selection Factory setting Description channel R1 … R5 Relay output selection Signal Adapter, 0-10 V, PWM, Standard Standard Signal type Output A, B PWM output selection Profi le Solar, Heating Solar PWM characteristic curve Min.

  • Page 70: Vbus

    PWM/0-10V IP20 Temp. Sensor Allocate the sensors and relays to the SDFK or SD6 respectively in the corre- sponding sub-menus. The following selections are available: S1 … S9: Sensor inputs S1 … S9 CS10: CS10 irradiation sensor (only if a corresponding sensor is connected) VFD: VFD temperature value (only if a corresponding sensor is connected and registered)

  • Page 71: Troubleshooting

    Troubleshooting If a malfunction occurs, a message will appear on the display of the controller. WARNING! Electric shock! Upon opening the housing, live parts are exposed! Î Always disconnect the controller from power supply before opening the housing! The controller is protected by a fuse. The fuse holder (which also holds the spare fuse) becomes accessible when the cover is removed.
  • Page 72 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. Switch-on temperature difference Air or gas bubbles in the system? Vent the system;...
  • Page 73 The solar circuit pump does not work, although the collector is considerably warmer than the store. Insulation close enough to the store? Display illuminated? If not, press Replace insulation or increase it. button ➄. Display illuminated again? Are the store connections insulated? There is no current;...

  • Page 74: Accessories

    Accessories Sensors SD3 Smart Display / GA3 Large Display CS10 Solar cell AM1 Alarm module Overvoltage protection KM1 Communication device module VFD and RPD Grundfos Direct Sensors™ DL2 Datalogger VBus / USB & VBus / LAN ® ® V40 fl owmeter interface adapters DL3 Datalogger...

  • Page 75: Sensors And Measuring Instruments

    18.1 Sensors and measuring instruments 18.2 VBus accessories ® Sensors SD3 / SDFK Smart Display / GA3 Large Display The product range includes high-precision platinum temperature sensors, flatscrew The Smart Display is designed for simple connection to controllers with VBus .

  • Page 76: Interface Adapters

    18.3 Interface adapters VBus / USB & VBus / LAN interface adapters ® ® DL3 Datalogger The VBus / USB interface adapter is the interface between the controller and a ® Be it solar thermal, heating or DHW heat exchange controllers – with the DL3 personal computer.

  • Page 77: Index

    Index Backup heating suppression ..................... 37 Loading controller adjustments ..................67 Antifreeze, solar optional function ................. 37 Mains connection ......................... 7 Balance values ........................29 Manual mode ........................67 Bypass, solar optional function ..................34 Maximum store temperature ..................31 Measured values .........................
  • Page 78 Target temperature, solar optional function ..............36 Technical data ........................4 Thermal disinfection ......................61 Thermostat function ......................53 Tube collector function..................... 36 Twin pump ........................... 41 VBus ............................71...
  • Page 80 Roth ÖkoEnergie- und Sanitärsysteme Erzeugung Speicherung Nutzung > Solarsysteme Speichersysteme für > Flächen-Heiz- und > Wärmepumpensysteme > Trink- und Heizungswasser Kühlsysteme > Solar-Wärmepumpen- > Brennstoffe und Biofuels > Rohr-Installations - systeme > Regen- und Abwasser- systeme Recycling > Duschsysteme ROTH WERKE GMBH...

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