Installation and service instructions 6 720 618 477-00.1RS Room controller For contractors RC35 programming unit Read carefully before installation and servicing.
Contents Contents Guide to instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents 6 System settings (Service menu – Settings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1 Plant data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1.1 Building type (adjusting the outside temperature) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1.2 Minimum outside temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.
Guide to instructions Guide to instructions These installation and service instructions contain all information on the function and settings of the Logamatic RC35 programming unit. Introduction to the service menu Chapter 4.2 explains in detail the steps needed for programming all the settings in the service menu. Operation is only briefly dealt with in the following sections. Display texts Words appearing on the display are shown in bold in flowing text.
Key to symbols and safety instructions 1 1 Key to symbols and safety instructions 1.1 Key to symbols Warning information Warnings in this document are identified by a warning triangle and printed against a grey background. If there is a danger due to electricity, the exclamation mark in the warning triangle is replaced by a lightning symbol. Signal words at the start of a warning indicate the type and seriousness of the ensuing risk if measures to prevent the risk are not taken.
1 Key to symbols and safety instructions 1.2 Safety instructions Installation and commissioning B Observe these instructions to ensure correct operation. B The appliance must only be installed and commissioned by an authorised installer. Risk to life from electric shock B The power supply must be connected by a qualified electrician. B Observe the connection diagram. B Before installation: isolate all poles of the power supply (230 V AC). Secure against unintentional reconnection.
Product information 2 2 Product information 2.1 Correct use The RC35 programming unit must only be used to operate and control Buderus heating systems. B Always use this appliance correctly and in conjunction with the specified control systems. B Observe all regulations and standards applicable to the installation and operation of the system in your country! The boiler must be equipped with EMS (energy management system) or UBA1.x (universal burner controller).
2 Product information 2.4 Specification Unit V W W mm g °C °C % Power supply via BUS system Power consumption Power consumption with backlighting Dimensions (width/height/depth) Weight Operating temperature Storage temperature Relative humidity CE designation Tab. 2 RC35 16 V DC 0.3 0.
Product information 2 2.5 Validity of these instructions for function modules (accessories) These instructions also apply to the programming unit when used in conjunction with the MM10 mixer module and the WM10 low loss header module. Additional setting options may be found in some menus, if your heating system is equipped with alternative function modules (e.g. solar module SM10). These setting options are explained in a separate manual. 2.
3 3 Installation Installation 3.1 Choosing the right installation position 3.1.1 Installation in reference room If the system is room-temperature controlled, the following requirements must be observed: • Installation position on an internal wall (Æ Fig. 1) • Maintain the specified distance from the door (to avoid draughts). • Allow clearance below the programming unit (Æ Fig. 1, shaded area) (to ensure correct temperature measurement).
Installation 3 3.1.2 Installation on boiler Installation directly on the boiler is possible where the boiler is equipped with the Energy Management System (EMS). The outside temperature sensor for weather-compensated control is not delivered as standard, but can be ordered as an accessory. 3.
3 Installation 3.3 Installation and connections Only use the wall mounting base with screw terminals. B Replace wall mounting bases without screw terminals that may already be installed. The wall mounting base can be attached directly to the wall or on a flush box. When mounting on a flush box, note the following: B Draught from within the flush box must not be able to falsify the capture of the room temperature by the programming unit. If required, stuff the flush box with insulation material.
Installation 3 B A jumper is required at terminals “EXT” [6] (delivered condition) if the RC35 programming unit is operated without an external room temperature sensor. B If the RC35 programming unit operates together with an external room temperature sensor, remove the factory-fitted jumper at “EXT” and connect the external room temperature sensor in its place. 3.4 Attaching or removing the programming unit Attaching the programming unit 1.
4 4 Principles of operation Principles of operation 4.1 Overview of controls Key to diagram: 1 2 Flap; pull the recessed grip on the left to 3 4 open 2 Display 3 Rotary selector for changing values and temperatures or for navigating through the menus 1 4 Buttons for basic functions: When the LED lights up, “AUT” (automatic) • “Daytime operation” (manual) • 5 6 720 618 477-08.1RS the switching program is active (automatic changeover between day and night room temperatures).
Principles of operation 4 4.2 Introduction to the service menu You can use the SERVICE MENU to set the parameters for the system. It also contains functions for diagnosis, maintenance purposes, and carrying out a reset. The procedure for operation is always the same: 1. 2. 3. 4. 5. Open the flap (by pulling the recessed grip on the left). Press + + at the same time to open the SERVICE MENU. Turn rotary selector to change the selection. Press to make your selection.
4 Principles of operation Operation 4. 5. Result The SERVICE\SETTINGS menu opens. Turn rotary selector anti-clockwise until boiler data is selected. Press to select boiler data. Menu SETTINGS\BOILER opens. SERVICE\SETTINGS Bplant data boiler data domestic hot water heating circuit 1 SETTINGS\BOILER What type of building do you have? medium 6. To change the value, hold down (the value starts flashing) and turn rotary selector same time.
Principles of operation 4 4.3 Overview of the service menu The SERVICE MENU is divided into the following menus and submenus: Menu quick operation settings (all parameters) diagnosis servicing1)2) Reset1) Tab.
5 5 Commissioning Commissioning 5.1 General commissioning Operation 1. Result Switch on the heating system. While setting up the connection between the RC35 and EMS or UBA1.x, the display shows the message on the right. RC35 version: connect to: connection setup ... please wait If the display shows a different message, look it up in Chapter 10, page 48. 2. Set the language: Open flap. Hold down rotary selector . and select the language with Open cover in order to set language with OK key.
Commissioning 5 5.2 Checklist: important parameters for commissioning When commissioning the device, ensure the satisfaction of both parties, making sure that the heating system meets the customer's needs and will not give cause for complaints.
5 Commissioning 5.3 Quick commissioning (menu quick operation) B Press to open menu quick operation. SERVICE MENU Bquick operation settings diagnosis servicing SHORTCUT\ BASIC SETUP HYDR. SEP. Input Menu item range Which language should English, ... be used? Have you installed a yes, no module for the hydraulic separator? Is a sensor for a low loss header connected? SYSTEM NO.
Commissioning SHORTCUT\ DHW 5 Menu item Have you installed domestic hot water? What should be used for domestic hot water heating? To which temperature should your domestic hot water be heated? SOLAR MODULE Tab. 8 Have you installed a solar module? Input range yes, no Factory setting no 3-way switching valve cylinder primary pump 30 °C to 80 °C 3-way switching valve 5) 60 °C To be able to change the DHW temperature, set DHW on the boiler programming unit to “AUT” or enable DHW.
5 Commissioning We recommend you hand these installation and service instructions to the customer for safekeeping near the heating system. 5.6 Shutting down/switching off The RC35 programming unit is powered via the heating system and remains permanently ON. The heating system is only switched off, for example, for maintenance work. B To start up and shut down the heating system: set the ON/OFF switch on the boiler programming unit to 1 (ON) or 0 (OFF).
System settings (Service menu – Settings) 6 6 System settings (Service menu – Settings) B Press + + simultaneously to open the SERVICE MENU. B Turn rotary selector anti-clockwise, until settings is selected. B Press to open menu SERVICE\SETTINGS. SERVICE MENU quick operation Bsettings diagnosis servicing Note that the menu items shown will vary depending on the heating system. 6.1 Plant data B Press to select plant data. The menu SETTINGS\SYSTEM opens.
6 System settings (Service menu – Settings) Input Menu item range Should the outside temp. damping yes, no be switched off? What type of building do you have? What is the lowest expected outside temp. in your region? Tab. 9 Factory setting no light, medium medium, heavy – 30 °C to – 10 °C 0 °C Other information When selecting “yes” the following parameter building type will be hidden. Building type (heat storage capacity), Æ Chapter 6.1.1, page 24. Æ Chapter 6.1.
System settings (Service menu – Settings) 6 Example: 2 1 6 720 618 477-05.1RS Fig. 6 1 2 This greatly simplified example shows how the adjusted outside temperature follows the outside temperature, but does not reach its extreme values. Current outside temperature Adjusted outside temperature With the factory settings, changes in the outside temperature affect the calculation of weather-compensated control after no more than three hours (30 x 6 minutes = 180 minutes).
6 System settings (Service menu – Settings) 6.2 Boiler data B Turn rotary selector anti-clockwise until boiler data is selected. B Press to select boiler data. The menu SETTINGS\BOILER is opened.
System settings (Service menu – Settings) 6 6.3 Heating circuit data This chapter explains the settings for all heating circuits using heating circuit 1 as an example. B Turn rotary selector anti-clockwise until heating circuit 1 is selected. B Press to select heating circuit 1. SERVICE\SETTINGS The menu SETTINGS\HTG. CIRC. 1 is opened.
6 System settings (Service menu – Settings) Menu item Heating curve std. tmp. ( – 10 °C) Input range 30 °C to 90 °C Factory setting Other information 75 °C (radiator, convector) 45 °C (floor) radiator, convector: 75 °C The value in brackets is the setting for the minimum outside temperature (Æ page 27). Adjustment only if the control type is set to “outside temp. contr.” ( Æ page 32). max flow temp. radiator, Adjustment only if the control type is convector: set to “outside temp. contr.
System settings (Service menu – Settings) Menu item What outside temp. should be used for reduced operation? Frost protection What temp. should be used to trigger frost protection? Which frost protection temp. should be used? At what outside temp.
6 System settings (Service menu – Settings) Menu item What is the desired maximum flow temperature? For how many days should maximum flow temp. be maintained? Every how many days should the flow temp. be reduced? Input range 25 °C to 60 °C Factory setting 45 °C 0 days to 20 days 4 days direct normal Every day operat., every day, every 2nd day to every 5th day By how many K should 0 K to 20 K 5K the flow temp.
System settings (Service menu – Settings) 6 6.3.1 Assignment of programming unit/remote control unit in the software This function is not available with boilers with UBA1.x and DBA. Example: heating system with heating circuit 1 and heating circuit 2 (Æ page 11) Setting: Which operating unit is Alternative assigned to the heating circuit? A HC 1 = RC35, HC 2 = RC35 (Æ Fig. 2, [1], page 11) B HC 1 = none, HC 2 = RC35 (Æ Fig. 2, [1], page 11) C HC 1 = RC2x, HC 2 = RC35 (Æ Fig.
6 System settings (Service menu – Settings) 6.3.3 Heating curve Parameters: design temperature, maximum and minimum flow temperature and room temperature offset (parallel offset) The heating curve is the basis for economical and comfortable operation of the heating system with weather-compensated control.
System settings (Service menu – Settings) 1 6 5 2 4 3 TA TA 6 T minA 7 T minA 6 720 618 477-06.1RS Fig. 7 Setting the heating curve. Left: setting the gradient by means of design temperature and minimum outside temperature. Right: parallel offset possible by means of offset or set room temperature. TminA Minimum outside temperature TA Design temperature (flow temperature that should be achieved at min.
6 System settings (Service menu – Settings) • Room setback mode: The heating system operates as if in setback mode (as described under “reduced operation”), if the room temperature falls below the selected night temperature (set value). Boiler and heating circuit pump stop (as described under setback mode “shut-down mode”) if the room temperature exceeds the set night temperature by more than 1 K.
System settings (Service menu – Settings) 6 In parameter At what outside temp. should reduction be interrupted?, you can set an outside temperature threshold (relative to the adjusted outside temperature, Æ page 24). 1 2 5°C TV TV Fig. 8 shows how the frost protection function works, with and without this parameter activated. Settings selected: frost protection by outside temp.; frost protection temp. 5 °C. TA 1 2 5°C TA 3 -15°C 6 720 618 477-07.1RS Fig.
6 System settings (Service menu – Settings) 6.4 DHW WARNING: Risk of scalding at the hot water draw-off points. There is a risk of scalding at the hot water draw-off points if DHW temperatures can be set above 60 °C and during thermal disinfection. B Advise customers that they should only draw off mixed water. B Turn rotary selector anti-clockwise until DHW is selected. B Press to select domestic hot water. Menu SETTINGS\DHW opens.
System settings (Service menu – Settings) Menu item DHW circulation2)3) Is a circulation pump installed? How frequently should the circul. pump be switched on per hour? 6 Input range Factory setting yes, no no once for 3 minutes, Twice for twice for 3 minutes, 3 minutes 3 times for 3 minutes, 4 times for 3 minutes, 5 times for 3 minutes, 6 times for 3 minutes, permanent operation switch on circ.
6 System settings (Service menu – Settings) Menu item Input range Should the LED of the single yes, no charge key be activated? Start delay for preheated DHW (e.g. solar): OFF, 1 sec. to 50 sec. Factory setting yes OFF Other information The heating once only function is retained, but is no longer indicated by the LED.5) This function depends on the boiler used. Tab. 14 Navigator for service menu SETTINGS\DHW 1) Not possible or available on boilers with UBA1.x, UBA-H3 or DBA.
System settings (Service menu – Settings) 6 6.5 Solar data B Turn rotary selector anti-clockwise, until solar data1) is selected. B Press to select solar data. Menu SETTINGS\SOLAR opens. Menu item What is the max. stor. cylinder temp. of the solar system? What temp.
6 System settings (Service menu – Settings) 6.6 RC35 calibration B Turn rotary selector anti-clockwise, until RC35 calibration is selected. B Press to select RC35 calibration. SERVICE\SETTINGS Menu SETTINGS\CALIB. RC35 opens. domestic hot water heating circuit 1 solar data BRC35 calibration Menu item RC35 calibration Input range – 5.0 K to +5.0 K Factory setting 0.0 K Other information Tab. 16 Navigator for service menu SETTINGS\CALIB.
System settings (Service menu – Settings) 6 6.7 Contact details Contact details are automatically displayed to the end user if a fault develops. B Turn rotary selector anti-clockwise, until contact data is selected. B Press to select contact data. Menu SETTING\CONTACT opens. Menu item Name and tel. No. of supplier: Input range ___________ SERVICE\SETTINGS heating circuit 1 solar data RC35 calibration Bcontact data Other information ___________ Tab.
7 7 Diagnosis Diagnosis The diagnosis service menu contains a number of tools for diagnosis: • • • • • function test1)2) monitor value error message3) htg. charact. curve versions B Press + + simultaneously to open the SERVICE MENU. B Turn rotary selector anti-clockwise until diagnosis is selected. B Press to open the SERVICE\DIAGNOSIS menu. SERVICE MENU quick operation settings Bdiagnosis servicing Note that the menu items shown will vary depending on the heating system. 7.
Diagnosis 7 Observe the information which appears on the display when you switch to menus or enter settings. Press any key or turn the rotary selector to confirm the information. No settings will be allowed that might result in damage to the components. This is why some settings may not be accepted. 7.2 Monitor value You can use the monitor value menu to view the set and actual values for the heating system. The set value will be displayed first and then the actual value.
7 Diagnosis Burner operational Heating demand DHW demand Flue gas test active Service required / fault has occurred Tab. 19 Explanation of the symbols for footnote 1), page 43 7.3 Error message You can use the error message menu to view the most recent faults in the fault memory, in order to investigate a fault, for example. Faults are categorised as follows: • current errors are all unresolved faults currently present in the system.
Diagnosis 7 7.4 Heating curve With the htg. charact. curve you can graphically display the heating curves of individual heating circuits. B If the system comprises several heating circuits: Turn rotary selector to display the heating curve of the next heating circuit. DIAG.\CHAR. CURVE HC2 90 21 targ. flow tmp. 57°C 7.5 Versions You can use the INFO\VERSIONS menu to view the software versions for heating system components.
8 8 Service Service With the servicing menu (not possible on boilers with UBA1.x and DBA) you can set a service interval as well as view and reset current service messages. The interval can expire after a certain number of hours run or when a specific date is reached1). The RC35 programming unit will then show a service message so that the customer can notify you to arrange an appointment. Service messages are indicated by an Hxx code, e.g. H07.
Reset 9 9 Reset The RESET menu allows you to reset • • • • all parameters to their factory setting1), the fault list1), the service message2) and the hours run2). Following a reset to factory settings, you may need to adjust the parameters in accordance with the actual system configuration. B Turn rotary selector to select a menu, e.g. error list. B Press to change to the display, e.g. Do you wish to reset the error list? B Press and turn rotary selector to set the display to yes.
10 Troubleshooting 10 Troubleshooting This fault table lists possible system faults, i.e. faults in EMS components. The heating system keeps operating as long as possible in the event of a system fault; in other words, heating can continue. Only use original Buderus spare parts. Losses caused by the use of parts not supplied by Buderus are excluded from the Buderus warranty. The fault displays are subject to the specific type of boiler used.
Troubleshooting Events SC FC display A01 810 DHW stays cold. 10 Effect on control characteristics The system continuously tries to heat the DHW cylinder to the set DHW temperature. Possible cause Remedy Constant drawing or B Stop any leaks. system leak. Temperature sensor is B Check sensor incorrectly connected connection and or fitted. sensor lead. Priority DHW is Breakage or short cir- B Check sensor mounting. switched off once the cuit in the sensor lead.
10 Troubleshooting Events SC FC display A01 815 Low loss header sensor faulty. A01 A01 A02 A11 A11 A11 Effect on control characteristics This may result in the following heating circuits receiving insufficient heat. Possible cause Remedy Temperature sensor is B Check sensor incorrectly connected connection and or fitted. sensor lead. Breakage or short cir- B Check sensor mounting. cuit in the sensor lead. B Compare resistance Temperature sensor is values with the faulty. sensor curve.
Troubleshooting 10 Events Effect on control SC FC display characteristics A11 804 internal error Heating system is in emergency mode. A11 806 Room Since the actual room temperature temperature is sensor is missing, the following defect. cannot function: • Room influence (for weathercompensated control) • Switching point optimisation In the case of room temperaturedependent control, the system is regulated to max. temperature for HCx. A11 816 No commu- RC20/RF unable to nication with transmit data to RC35.
10 Troubleshooting Events SC FC display A18 825 Two master operating units in system. Effect on control characteristics RC35 and RC2x regulate both heating circuits and DHW. Subject to the selected heating programs and the required room temperature, the heating system may no longer function correctly. DHW heating is malfunctioning. A2x 806 Room Since the actual room temperature temperature is for HCx is missing, the following defect.
Troubleshooting Events SC FC display A2x 829 RC20/RF as remote control. A2x 830 Low battery for wireless oper. unit HCx. A2x 839 No wireless comm. with oper. unit HCx. Wireless malfunction. 10 Effect on control characteristics RC20/RF unable to transmit data to RC35. Room temperature control therefore not possible for this HC. Possible cause Remedy RC20/RF address B Set the operating incorrectly allocated in unit parameter in RC35 or not installed RC35 to RC20/RF. in RC35.
10 Troubleshooting Events SC FC display A3x 807 HCx flow sensor is defect. Effect on control characteristics The heating circuit pump continues to be controlled with reference to the default value. Possible cause Remedy Temperature sensor is B Check sensor incorrectly connected connection and or fitted. sensor lead. Breakage or short cir- B Check sensor mounting. cuit in the sensor lead. B Compare resistance The actuator is Temperature sensor is values with the switched to zero volt faulty.
Logamatic EMS RC35 programming unit - Subject to technical modifications Push & turn to set parameter. room quick operation settings diagnosis servicing RESET SERVICE MENU room SERVICE\SETTINGS factory setting error list service message operating hours SERVICE MENU\RESET service interval current messages RESET SERVICE MENU\SERVICE function test monitor value error message htg. charact. curve versions SERVICE\DIAGNOSIS plant data boiler data heating circuit 1 heating circuit 2 etc.
Index Index A Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Actual values, viewing . . . . . . . . . . . . . . . . . . 43 Adjusting the outside temperature . . . . . . . . 24 B Boiler data, Service menu – settings . . . . . . 26 Building type. . . . . . . . . . . . . . . . . . . . . . . . . . 24 C Calibration, room temperature display . . . . . 40 Checklist, parameters for commissioning . . . . . . . . . . . . . . . . . . . . . . . . 19 Combustion controller . . . . . . . . . . . . .
Index P Plant data, Service menu – Settings . . . . . . . 23 Power failure . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Programming unit - assignment in software . . . . . . . . . . . . . . . 31 - attaching or removing . . . . . . . . . . . . . . . . 13 - for heating circuit . . . . . . . . . . . . . . . . . . . . 27 - only programming unit in the system . . . . 11 Pump kick . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Pump logic temperature . . . . . . . . . . . . . . . . .
Notes 58 Logamatic EMS RC35 programming unit - Subject to technical modifications
Notes Logamatic EMS RC35 programming unit - Subject to technical modifications 59
Buderus Cotswold Way, Warndon, Worcester WR4 9SW Customer service: 0844 892 3004 Technical support: 0844 892 4224 Fax: 01905 753130 www.buderus-commercial.co.uk In the UK and IE, Buderus is a brand name of Bosch Thermotechnology Ltd.
