Related Manuals for Wolf R1
Summary of Contents for Wolf R1
- Page 1 Installation and operating instructions Control unit R1 Wolf GmbH · Postfach 1380 · D-84048 Mainburg · Tel. +49-8751/74-0 · Fax +49-8751/741600 · Internet: www.wolf-heiztechnik.de 3061809_1210 Subject to modifications...
-
Page 2: Table Of Contents
Index Safety instructions ..............3 Standards / Regulations .............4 Installation / Electrical work ............ 5-6 Commissioning ................7 Control unit / Function / Operation ........8-10 Displaying / Modifying control parameters........11 Contractor level parameters ..........12-28 Setting the eBUS address ............29 Parameter setup report.............30 High limit safety cut-out changeover ........31 Sensor resistances ..............32 Wiring diagram boiler control unit R1 ........33 Specification ................34 Fault messages ................35 3061809_1210... -
Page 3: Safety Instructions
Safety instructions The following symbols are used in conjunction with these important instructions concerning personal safety as well as operational reliability. "Safety instructions" are instructions with which you must comply exactly, to prevent injury and material losses. Danger through 'live' electrical components. NB Switch OFF the ON / OFF switch before removing the casing. Never touch electrical components or contacts when the ON / OFF switch is in the ON position. This brings a risk of electrocution, which may result in injury or death. The main supply terminals are 'live' even when the ON / OFF switch is in the OFF position. This indicates technical instructions which you must observe to prevent material losses and boiler malfunctions. Burner supply cable Boiler sensor High limit safety cut-out Earth terminal Thermometer 3061809_1210... -
Page 4: Standards / Regulations
- EN50156 Electrical equipment in combustion systems - EN 12828 Heating systems in buildings Appropriate use The Wolf R1 control unit is designed exclusively for use in conjunction with Wolf boilers. The R1 control unit is equipped with a temperature controller/ limiter and a high limit safety cut-out. The control unit regulates single stage burners. The set boiler temperature can be selected between 38 - 90 °C. The R1 control unit can be extended with a BM programming unit for weather-compensated temperature control with time program. Other applicable documents Boiler installation and operating instructions. Instructions for all accessories used. Warnings - Never remove, bypass or disable safety and monitoring equipment. - Only operate the system in perfect technical condition. Immediately remove / remedy any faults and damage which may impact on safety. -
Page 5: Installation / Electrical Work
Installation / Electrical work Installation When installing this control unit ensure that sensor capillaries are neither kinked nor twisted. Never route on-site sensor and remote control leads / cables together with mains power cables. Implement the electrical wiring in accordance with the wiring diagram. Open the rear control unit cover after releasing both screws. Burner supply cable Burner supply cable Guide it through the aperture in the control unit bracket (l.h. / r.h.), subject to the side to which the boiler door opens. Boiler sensor Boiler sensor Insert into any opening of the boiler sensor well. High limit safety cut-out High limit safety cut-out Insert sensor capillaries into any opening in the boiler sensor... - Page 6 Installation / Electrical work Pump connection Wolf boiler circuit and DHW cylinder primary pumps are factory- fitted with plugs. Route the cable through the boiler back cutout. Insert the plug into the marked-up locations in the plug-in connector strip, and secure the cables with their strain relief. Join the cable of output A1 to the plug supplied. Insert the plug programmable output into the marked-up location in the plug-in connector strip, and secure the cable with its strain relief. Route the cable through the boiler back cutout. Outside temperature Join the on-site lead of the outside temperature sensor with the sensor plug supplied. Insert the plug into the marked-up location in the (accessory) plug-in connector strip, and secure the lead with its strain relief. Route the lead through the boiler back cutout. Fit the outside temperature sensor to the north or northeast wall, 2 to 2.5m...
-
Page 7: Commissioning
Switch ON the system ON / OFF switch at the control unit. ON / OFF switch The heating system starts to operate with the factory settings as soon as the ON / OFF switch at the control unit is switched ON. Note: The factory settings of the control unit represent empirical values. Subject to system or equipment level, control parameters other than those chosen at the factory can be selected. Make changes via the Wolf control accessories or via a PC / laptop with Wolf control software. All factory settings are stored in a non-volatile memory. During commissioning, the control unit automatically recognises any connected cylinder and / or outside temperature sensor. The outside temperature sensor is logged off by disconnection and by switching the supply voltage OFF and ON again. The system will not be protected against frost if no outside temperature sensor is connected; only the boiler is frost protected. -
Page 8: Control Unit / Function / Operation
Reset button 1. Resets all parameters to their factory settings. - The operating mode switch must be set to O (OFF). - Press and hold down the reset button whilst setting the operating mode switch to I (ON). - Keep holding down the reset button for at least 2 seconds after the system has started. 2. For resetting the oil combustion unit (only in conjunction with the relevant Wolf components) - In case of a burner fault, the oil combustion unit is reset via a reset relay by pressing the reset key. Note: Reset gas fired boilers in case of a burner fault directly at the gas combustion unit, i.e. through an opening in the silencer hood. 3061809_1210... - Page 9 Control unit / Function / Operation DHW temperature selection (rotary selector) When boilers are combined with a DHW cylinder, setting 1-9 corresponds to a cylinder temperature of 15-60 °C. The adjustment made at the DHW temperature selector is ineffective when the system is used in conjunction with a digital room temperature controller or a weather-compensated controller. The temperature will then be selected at the controller (accessory).
- Page 10 Control unit / Function / Operation Thermometer to display the current heating water temperature. Fine-wire fuse M 6.3 A to protect the control PCB. eBUS connection for data transfer between the control unit and the PC / laptop with the software set for boiler control units (accessory). High limit safety cut-out STB factory-set to 110 °C; adjustable to 100 °C, if required. Anti-seizing pump In summer mode, the circulation pump operates for approx. 10 protection seconds after a maximum idle period of 24 hours. Then, the cylinder primary pump and the DHW circulation pump (if installed) will run for 20 seconds. This prevents the pump from seizing up. The burner will be switched OFF for approx. two minutes if it is operating when the anti-seizing pump protection is enabled. 3061809_1210...
-
Page 11: Displaying / Modifying Control Parameters
Displaying / Modifying control parameters The control parameters can only be modifi ed or displayed via Wolf control accessories with eBUS capability. For procedures, check the operating instructions of the relevant accessories. Modifi cations must only the carried out by a recognised heating contractor or by the Wolf customer service. Incorrect operation can lead to system faults. Please note when adjusting parameter A09 (frost protection / outside temperature), that frost protection is no longer safeguarded if you set temperatures lower than 0 °C. This can result in damage to the heating... -
Page 12: Contractor Level Parameters
Contractor level parameters Frost protection limit The boiler circuit pump operates constantly if the outside Parameter A09 temperature stays below the selected value. The burner starts and heats the boiler to a min. of 38 °C, if the boiler water temperature falls below +5 °C. Note: Only change the factory setting if you can ensure that the heating system and its components will not freeze up at low outside temperatures. Factory setting: 2 °C Setting range: -20 to +10 °C Individual setting: ______ Parallel DHW operation The boiler circuit pump is switched OFF during DHW cylinder Parameter A10 heating with DHW priority (0). The boiler energy will then be... - Page 13 Contractor level parameters Burner switching differential The burner switching differential regulates the burner temperature (dynamic) within a set range by switching the burner ON and OFF. The higher Parameter HG01 the ON / OFF temperature differential, the higher the boiler water temperature fluctuation around the set value, resulting in longer burner runtimes and vice versa. Longer burner runtimes protect HG01 the environment and extend the service life of wearing parts Selected switching differential 15 K Factory setting: 15 K Setting range: 5 to 30 K Hysteresis time 10 minutes Individual setting: ______ Burner runtime (min.) Fig.: Time sequence of the dynamic burner switching differential for a user-defined burner switching differential of 15 K and a selected hysteresis time (parameter HG33) of 10 minutes. 3061809_1210...
- Page 14 Contractor level parameters Pump operating mode Pump operating mode 0: Parameter HG06 Heating circuit pump for heating systems without cascade control and without low loss header The heating circuit pump runs constantly when there is a heat HG06 demand. The heating circuit pump will be switched OFF during DHW heating, if DHW priority has been selected. Factory setting: 0 Setting range: 0 / 1 Individual setting: ______...
- Page 15 Contractor level parameters Pump operating mode 2: Buffer primary pump for BSP cylinder The header sensor (buffer) only affects the heating operation. In case of cylinder heating, the reference temperature is provided by the internal boiler sensor. In heating mode, the buffer primary pump runs only when there is a burner demand. Pump run-on in accordance with parameter HG07. Soft starting: At TK < TK (38 °C) buffer primary pump and cylinder primary pump "OFF". MKP continues to run with soft starting. Note: Increase the pump run-on time from 3 min to 15 min.
- Page 16 Each time the burner is shut down in heating mode, it will be Parameter HG09 blocked for the duration of the burner cycle block. The burner cycle block is reset by switching the ON / OFF switch HG09 OFF and ON or by briefl y pressing the reset button. Individual setting: ______ Factory setting: 4 min Setting range: 1 to 30 min Programmable input E1 The functions of input E1 can only be scanned and adjusted with Parameter HG13 Wolf control accessories with eBUS capability. HG13 The following functions can be allocated to input E1: Explanation Room thermostat With open input E1, heating operation will be blocked (summer mode), independent of any digital Wolf control accessories. Exception: Remote controlled heating circuits Factory setting: 1 Setting range: 1 to 11 3061809_1210...
- Page 17 Contractor level parameters Explanation Maximum thermostat To enable the burner, input E1 must be closed. The burner will remain blocked for as long as the contact is open, even in emissions test mode, cascade mode and for DHW and central heating frost protection mode. N / A N / A Flue gas damper / ventilation air damper Function monitoring of the fl ue gas damper/ ventilation air damper with fl oating contact. Closed contact Condition for burner enable in central heating, DHW, cascade and emissions test mode. Important: A1 (HG 14 = 7) must be programmed for fl ue gas damper / ventilation air damper function. DHW circulation push button (on site) After activating this button, the DHW circulation pump is operated for 5 minutes, independent of the time program or the position of the program...
- Page 18 Contractor level parameters Central sensor (low loss header or buffer) In heating mode, the boiler water temperature control is no longer governed by the actual boiler sensor temperature, but instead by the central sensor. The boiler water temperature sensor continues to monitor the minimum and maximum boiler water temperatures. Burner block Contact closed, burner blocked. The heating circuit and cylinder primary pumps operate in standard mode, but without soft start. The burner is enabled in emissions test and in frost protection mode. (Switching output 1 if HG14 = 12, diverter valve has been programmed). N / A External burner demand, input E1 closed (e.g. air heater, swimming pool demand, second cylinder heating via thermostat) The set boiler water temperature is set to the maximum boiler water temperature minus 5 K limited by the maximum fl ow temperature. Heating circuit and cylinder primary pump in standard mode. Important: In any case, output A1 must be programmed to setting 14. Return sensor Only in conjunction with parameter HG32 (return temperature raising).
- Page 19 Contractor level parameters Programmable The functions of output A1 can only be scanned and adjusted with output A1 Wolf control accessories with eBUS capability. Parameter HG14 The following functions can be allocated to output A1: HG14 Explanation N / A No control of output A1. DHW circulation pump 100% The output A1 is controlled by control accessories (BM), if DHW circulation has been enabled. Output A1 is constantly enabled when no accessory controller is installed. Factory setting: 0 Setting range: 0 to 14 DHW circulation pump 50% The output A1 is controlled by control accessories (BM) Individual setting: ______ in cycles of 5 minutes ON and 5 minutes OFF, if DHW circulation has been enabled. Output A1 is constantly cycled in 5 minute cycles when no accessory controller is installed. DHW circulation pump 20% The output A1 is controlled by control accessories (BM) in cycles of 2 minutes ON and 8 minutes OFF, if DHW circulation has been enabled. Output A1 cycles constantly when no accessory controller is installed. Alarm output Output A1 is controlled after a fault and expiry of 4 minutes. Flame detector Output A1 is controlled after a fl ame has been recognised.
- Page 20 Contractor level parameters Explanation Bypass pump for return temperature raising Output A1 is controlled if the return temperature is lower than the selected return temperature raising value (parameter HG32). Important: Input E1 must, in any case, be programmed to setting 11 or if an external burner block input E1 (HG13 = 8) has been programmed. DHW circulation pump Output A1 is controlled for 5 minutes after a pushbutton has been activated (pulse input E1). Important: In any case, input E1 must be programmed to setting 6.
- Page 21 Contractor level parameters Cylinder primary pump After completing the cylinder heating (the cylinder has reached run-on time the set temperature), the cylinder primary pump will run on up Parameter HG19 to the maximum set run-on time. The cylinder primary pump will switch OFF prematurely if, during the run-on time, the boiler water temperature has fallen to a differential between boiler and HG19 cylinder water temperature of 5 K, to prevent the boiler cooling down too severely. Factory setting: 3 min Setting range: 0 to 10 min Individual setting: ______ Max.
- Page 22 Contractor level parameters Minimum boiler water The control unit is equipped with an electronic boiler thermostat, temperature TK-min. with an adjustable minimum switch-ON temperature. The burner Parameter HG21 is switched ON subject to the cycle block if this temperature is not achieved when heat is demanded. The minimum boiler water temperature TK-min. is also not necessarily achieved when there HG21 is no heat demand. Note: Set this parameter to 50 °C when using a pressure-jet gas burner. Factory setting: 38 °C Setting range: 38 to 90 °C Individual setting: ______ Maximum boiler water The control unit is equipped with an electronic boiler thermostat, temperature TK-max. with an adjustable maximum shutdown temperature (maximum Parameter HG22 boiler water temperature). The burner is switched OFF if this temperature is exceeded. The burner will be started again, when the boiler water temperature has fallen by as much as the burner HG22...
- Page 23 Contractor level parameters DHW sensor mode Using the DHW sensor operating mode, three separate modes Parameter HG24 can be applied to the DHW sensor input. Operating mode 1 is the factory setting for the cylinder HG24 heating mode with electronic cylinder temperature sensors (accessories). Operating mode 2 is designed for electronically controlled cylinder heating with cylinder temperature sensor and also for an external thermostat demand. In this case, the external thermostat (zero volt) will be wired on site parallel to the electronic cylinder temperature sensor. Cylinder heating will be implemented as standard for as Factory setting: 1 long as the external thermostat demands no heat (contact open). Setting range: 1 to 3 The boiler circuit and cylinder primary pump are activated when the external thermostat demands heat (contact closed). The burner Individual setting: ______ heats the boiler at maximum output to TK-max. Contactor control...
- Page 24 Contractor level parameters Boiler soft start The optional boiler soft start protects the boiler against corrosion Parameter HG26 that can occur when the boiler is heated from a cold state, i.e. through condensate separation in the dew point range. The boiler circuit pump will be switched OFF, if the boiler water temperature HG26 falls 2 K below the set value TK-min. The pump will be enabled when the boiler water temperature has exceeded the minimum limit TK-min. TK-min. cannot be achieved and the heating circuit and cylinder primary pumps remain OFF, if the burner is blocked through external safety circuits (e.g. flue gas thermostat on solid fuel boilers). Factory setting: 1 Setting range: 0 / 1 Individual setting: ______ Raising the return Ensure the return temperature is raised in heating systems with...
- Page 25 Contractor level parameters eBUS feed Parameter HG34 enables the selection of three types of eBUS Parameter HG34 feed. The settings have the following meaning: HG34 0 → eBUS feed switched OFF 1 → eBUS feed switched ON 2 → automatic eBUS feed Factory setting: 2 Setting range: 0 / 1 / 2 Individual setting: ______ 0 - 5 V input Parameter HG35 enables a switching of the 0 - 5 V input for a for telecontrol system telecontrol system. Parameter HG35 The settings have the following meaning: HG35 0 → Outside temperature sensor connection During commissioning the control unit checks whether and where an outside temperature sensor is connected.
- Page 26 Contractor level parameters TEST functions These test functions enable you to check the following control unit outputs. HG50 Heating circuit pump rEL1 Cylinder primary pump rEL2 Output A1 rEL3 Reset relay rEL4 Burner rEL5 N / A rEL6 N / A rEL7 N / A rEL8 The maximum boiler water temperature limit TK-max. is disabled High limit safety cut-out test by holding down the reset button when the control unit is switched ON. The boiler heats to the selected temperature of the high limit safety cut-out and locks out. This enables you to check the perfect function of the high limit safety cut-out.
- Page 27 Contractor level parameters The operating mode can only be displayed via WOLF control accessories with eBUS capability. For procedures, check the operating instructions of the relevant accessories. Operating mode (display on the BM programming module) Status HG Explanation Notes Standby Emission test mode max.15 min. Heat demand (heating mode) Heat demand with cycle block...
- Page 28 Contractor level parameters The temperature (set / actual temperature) can only be displayed via Wolf-control accessories with eBUS capability. For procedures, check the operating instructions of the relevant accessories. Set / actual values Display Name (display on the BM Actual cylinder temperature DHW TEMP programming module)
-
Page 29: Setting The Ebus Address
Setting the eBUS address Setting the eBUS address When operating several boilers (up to 4 control units R1) in conjunction with a cascade controller KM, adjust the eBUS address of the boilers in for cascade mode accordance with the table, below. You adjust the eBUS address by holding down the reset button with the system operating. After 5 seconds, the corresponding fl ashing code appears (in accordance with the table) at the signal ring. Select the corresponding eBUS address with the DHW temperature rotary selector. Your selection of the required eBUS address is saved by releasing the reset button. Boiler in eBUS Position rotary Display signal cascade address selector DHW ring mode temp. selection individual green fl ashing*... -
Page 30: Parameter Setup Report
Parameter setup report Wolf recommends you complete the setting report carefully and to keep it safe to enable a quick solution to be found during service and in case of a full reset. Parameter Setting range Factory Individual setting setting Frost protection level -20 to +10 °C +2 °C Parallel DHW operation 0 / 1 Maximum DHW temperature 60 to 80 °C 65 °C Burner switching differential 5 to 30 K 15 K HG01 (dynamic) Pump operating mode 0 / 1 / 2 HG06 Run-on time 0 to 30 min 3 min HG07 Boiler circuit pump Maximum limit 40 to 90 °C 75 °C... -
Page 31: High Limit Safety Cut-Out Changeover
High limit safety cut-out changeover Adjustment of the high The high limit safety cut-out (STB) is factory-set to 110 °C. limit safety cut-out (STB) If required, it can be changed over to 100 °C. Such changes are irreversible. Disconnect the control unit from its power supply. Remove cap. Remove the cover from the high limit safety cut-out. Release the high limit safety cut-out fixing screws. Release the fixing screws of the control unit front cover and pivot forward. Remove the high limit safety cut-out. Release the clamping screw. Adjust the setting disc to 100 °C in accordance with the scale and retighten the clamping screw. Reassemble in reverse order. NB The maximum boiler water temperature (TK-max) must not be set to 90 °C, if the high limit safety cutout has been adjusted to 100 °C. -
Page 32: Sensor Resistances
Sensor resistances Boiler sensor, cylinder sensor, outside temperature sensor, Sensor resistances return sensor, central sensor Temp. Resist. Temp. Resist. Temp. Resist. Temp. Resist. °C °C °C °C 51393 8233 1870 48487 7857 1800 45762 7501 1733 43207 7162 1669 40810 6841 1608 38560 6536 1549 36447 6247 1493 34463 5972 1438 32599... -
Page 33: Wiring Diagram Boiler Control Unit R1
Wiring diagram boiler control unit R1 3061809_1210... -
Page 34: Specification
Specification Specification Supply voltage: 230 V ± 10% Rated frequency: 50-60 Hz Device fuse: Max. 6.3 A / medium slow Power consumption: 5 VA (control unit and accessories, excluding burner and pumps, standby) Breaking capacity, pumps: Each 230 V / 4(2)A acc. to EN 60730, part 1 Ambient temp.: 0..50 °C Storage temperature: -20 to 60 °C Data memory: EEPROM 3061809_1210... -
Page 35: Fault Messages
Fault messages If a fault is indicated by the signal ring of the control unit fl ashing red, a fault code is displayed via the Wolf control accessory with eBUS capability that allows cause and effect to be allocated using the following table. This list of fault messages is designed to allow your heating contractor to trace the fault more easily. No. Fault Cause Effect / Remedy TB excess temperature The external temperatu- Burner OFF, pump ON re limiter has shut down Request a service the system Burner fault During the burner start Burner OFF, pump ON no fl ame was esta- Press the reset button at the com- blished bustion controller or the control unit. If the fault cannot be removed by pressing the reset button several times, request a service. TW excess temperature The boiler water tem- Burner OFF, pump ON perature has exceeded Request a service the limit for TW (e.g. 95 °C) - Page 36 3061809_1210...