Viessmann SCU345 Manual Download Page 31 | Manualshive

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The controller compares the temperatures at the col-
lector sensors S1 and S3 to the tank temperatures
at the sensors S2, S4 and S5. If one of the measured

temperature differences is higher than the adjusted
switch-on temperature differences, the corresponding
pump (R1, R2) will be activated and the correspond-

ing tank will be loaded up to the adjusted maximum
temperature via the valves R3, R4. In this system, one
of the tanks can be loaded with priority.

System 9
3-tank solar system with east-/west collectors

Sensor/
terminal

Designation

Description

S1

TCOL

Temperature collector 1

S2

TST1B

Temperature tank 1 bottom

S3

TCOL2

Temperature collector 2

S4

TST2B

Temperature tank 2 bottom

S5

TST3B

Temperature tank 3 bottom

V40

optional: fl owmeter

Relay

Description

R1

Solar pump tank 1

R2

Solar pump tank 2

R3

Valve tank 1/2, 3

R4

Valve tank 2/3

Ventillogik

1

2

3

4

Durchflussrichtung
im stromlosen Zustand

Ventillogik

1

2

3

4

Durchflussrichtung
im stromlosen Zustand

Ventillogik

1

2

3

4

Durchflussrichtung
im stromlosen Zustand

Valve logic

Flow direction when the
valve is normally open

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30
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Summary of Contents for SCU345

Page 1: ...manual carefully to get the best performance from this unit Please keep this manual carefully 5619460 v1 0 04 2012 SCU345 Manual en US CA Installation Operation Functions and options Troubleshooting Manual for the specialized craftsman 11201562 11201562 ...

Page 2: ...th a warn ing triangle Î Î They contain information on how to avoid the danger described Signal words describe the danger that may occur when it is not avoided WARNING means that injury possibly life threat ening injury can occur ATTENTION means that damage to the appli ance can occur Note Notes are indicated with an information symbol Î Î Arrows indicate instruction steps that should be carried o...

Page 3: ...ion function function control according to BAFA guidelines Inputs 5 inputs for Pt1000 temperature sensors 1V40 impulse input Outputs 3 semiconductor relays 1 standard relay Interfaces VBus SD card slot Power supply 100 240V 50 60 Hz Switching capacity per relay 1 1 A 100 240V semiconductor relay 2 1 A 100 240V standard relay Total switching capacity 4 A Standby power consumption 1W Mode of operati...

Page 4: ...s tening screws and tighten Î Î Carry out the electrical wiring in accordance with the terminal allocation see chap 2 2 Î Î Put the cover on the housing Î Î Attach with the fastening screw upper fastening point lower fastening point cover screw 2 Installation 2 1 Mounting WARNING Electric shock Upon opening the housing live parts are exposed Î Î Always disconnect the con troller from power supply ...

Page 5: ...he temperature sensors S1 to S5 to the corresponding terminals with either polarity S1 Sensor 1 collector sensor S2 Sensor 2 e g tank sensor bottom S3 Sensor 3 e g collector sensor collector 2 S4 Sensor 4 e g tank sensor tank 2 S5 Sensor 5 e g tank sensor tank 3 A V40 flowmeter can be connected to the terminals V40 and GND either polarity The power supply connection is at the terminals Neutral con...

Page 6: ...r system with valve logic and heat exchange control page10 2 tank solar system with pump logic page 13 2 tank solar system with pump logic and heat exchange control page 16 3 tank solar system with valve logic and heat exchange control page 19 3 tank solar system with pump logic and heat exchange control page 22 Solar system with vertical tank loading and 2 tanks page 25 Solar system with east wes...

Page 7: ... via the valve R3 Tank 1 is loaded with priority System 1 2 tank system with valve logic 1 pump 3 sensors and 3 port valve Note 3 port valve normally open tank 1 S2 Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measure ment purposes or options S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measure ment pur...

Page 8: ... Tank maximum limitation 2 44 SMXS2 4 Sensor tank max 2 44 LST2 ON Loading tank 2 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collector minimum limitation option 46 CMIN 10 0 C 50 0 F Minimum collector temperature 46 OTCO OFF Evacuated evacuated tube collector function option 46 ...

Page 9: ...OSTC OFF Tank cooling 52 OHDP OFF Heat dump 52 ODTFT T function option 54 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 Auto Manual mode 3 56 MAN4 Auto Manual mode 4 56 BLPR OFF Blocking protection 56 OTDIS OFF Thermal di...

Page 10: ...m tank 2 to tank 1 R2 is possible with another temperature differential func tion S3 heat sink S5 heat source System 2 2 tank solar system with valve logic and heat exchange control Note 3 port valve normally open tank 1 S2 Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TST1T Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 T...

Page 11: ...ing tank 2 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collector minimum limitation option 46 CMIN 10 0 C 50 0 F Minimum collector temperature 46 OTCO OFF Evacuated tube collector function option 46 TCST 07 00 Evacuated tube collector starting time 47 TCEN 19 00 Evacuated tube co...

Page 12: ... MAX4F 58 0 C 136 0 F Switch off temperature maximum limitation 53 MIN4O 5 0 C 40 0 F Switch on temperature minimum limitation 53 MIN4F 10 0 C 50 0 F Switch off temperature minimum limitation 53 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Ma...

Page 13: ...ll be loaded up to the adjusted maximum temperature at most System 3 2 tank solar system with pump logic Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measure ment purposes or options S4 TST2B Temperature tank 2 bottom S5 Optional sensor for measure ment purposes or options V40 Relay Description R1 Solar pump tank 1 ...

Page 14: ...mum limitation 2 44 SMXS2 4 Sensor tank max 2 44 LST2 ON Loading tank 2 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collector minimum limitation option 46 CMIN 10 0 C 50 0 F Minimum collector temperature 46 OTCO OFF Evacuated tube collector function option 46 TCST 07 00 Evacuated...

Page 15: ...nctions OSYC OFF System cooling 51 OSTC OFF Tank cooling 52 OHDP OFF Heat dump 52 ODTFT T function option 54 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 Auto Manual mode 3 56 MAN4 Auto Manual mode 4 56 BLPR OFF Blocking...

Page 16: ... Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 TST1T Temperature tank 1 top S4 TST2B Temperature tank 2 bottom S5 TST2T Temperature tank 2 top V40 optional flowmeter Relay Description R1 Solar pump tank 1 R2 Solar pump tank 2 R3 Heat exchange pump R4 optional Thermal disinfection Parallel relay Heat dump System 4 2 tank solar system wit...

Page 17: ... Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collector minimum limitation option 46 CMIN 10 0 C 50 0 F Minimum collector temperature 46 OTCO OFF Evacuated tube collector function option 46 TCST 07 00 Evacuated tube collector starting time 47 TCEN 19 00 Evacuated tube collector ending ti...

Page 18: ...aximum limitation 53 MAX4F 58 0 C 136 0 F Switch off temperature maximum limitation 53 MIN4O 5 0 C 40 0 F Switch on temperature minimum limitation 53 MIN4F 10 0 C 50 0 F Switch off temperature minimum limitation 53 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mo...

Page 19: ...as to be selected System 5 3 tank solar system with valve logic and priority logic Ventillogik 1 2 Durchflussrichtung im stromlosen Zustand Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measure ment purposes or options S4 TST2B Temperature tank 2 bottom S5 TST3B Temperature tank 3 bottom V40 Optional sensor for measu...

Page 20: ... ON Loading tank 2 45 LOAD3 Loading 3 DT3O 6 0 K 12 0 Ra Switch on temperature difference 3 44 DT3F 4 0 K 8 0 Ra Switch off temperature difference 3 44 DT3S 10 0 K 20 0 Ra Set temperature difference 3 44 RIS3 2 K 4 Ra Rise 3 44 S3MAX 60 C 140 F Sensor tank max 3 44 LST3 ON Loading tank 3 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 1...

Page 21: ...EE OFF Pause speed option 51 PDELA OFF Pump delay option 51 COOL Cooling functions OSYC OFF System cooling 51 OSTC OFF Tank cooling 52 OHDP OFF Heat dump 52 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 Auto Manual mode 3...

Page 22: ...y loading or parallel loading can be carried out in this system System 6 3 tank solar system with pump logic and priority logic Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom S3 Optional sensor for measure ment purposes or options S4 TST2B Temperature tank 2 bottom S5 TST3B Temperature tank 3 bottom V40 Optional sensor for measure ment purp...

Page 23: ...mperature difference 3 44 DT3F 4 0 K 8 0 Ra Switch off temperature difference 3 44 DT3S 10 0 K 20 0 Ra Set temperature difference 3 44 RIS3 2 K 4 Ra Rise 3 44 S3MAX 60 C 140 F Tank maximum limitation 3 44 LST3 ON Loading tank 3 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collecto...

Page 24: ...UN 15 min Circulation runtime 48 PSPEE OFF Pause speed option 51 COOL Cooling functions OSYC OFF System cooling 51 OSTC OFF Tank cooling 52 OHDP OFF Heat dump 52 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 Auto Manual m...

Page 25: ... 2nd tank Ventillogik 1 Sensor terminal Designation Description S1 TCOL Temperature collector S2 TST1B Temperature tank 1 bottom tank 1 S3 TSTT Temperature tank 1 top tank 2 S4 TST2B Temperature tank 2 bottom tank 3 S5 Optional sensor for measure ment purposes or options V40 Relay Description R1 Solar pump tank 1 R2 optional Thermal disinfection Parallel relay Heat dump R3 Valve tank 1 2 3 R4 Valv...

Page 26: ... tank 2 45 LOAD3 DT3O 6 0 K 12 0 Ra Switch on temperature difference 3 44 DT3F 4 0 K 8 0 Ra Switch off temperature difference 3 44 DT3S 10 0 K 20 0 Ra Set temperature difference 3 44 RIS3 2 K 4 Ra Rise 3 44 S3MAX 60 C 140 F Tank maximum limitation 3 44 SMXS3 4 Sensor tank max 3 44 LST3 ON Loading tank 3 45 COL Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling ...

Page 27: ...on runtime 48 PSPEE OFF Pause speed option 51 PDELA OFF Pump delay option 51 COOL Cooling functions OSYC OFF System cooling 51 OSTC OFF Tank cooling 52 OHDP OFF Heat dump 52 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 A...

Page 28: ... Description S1 TCOL1 Temperature collector 1 S2 TST1B Temperature tank 1 bottom S3 TCOL2 Temperature collector 2 S4 TST2B Temperature tank 2 bottom S5 Optional sensor for meas urement purposes or op tions V40 Relay Description R1 Solar pump collector 1 R2 Solar pump collector 2 R3 3 port valve tank 1 2 R4 optional Thermal disinfection Parallel relay Heat dump System 8 Solar system with east west ...

Page 29: ...ooling option 1 46 CMAX1 110 C 230 F Maximum collector temperature 1 46 OCMI1 OFF Collector minimum limitation option 1 46 CMIN1 10 0 C 50 0 F Minimum collector temperature 1 46 OTCO1 OFF Evacuated tube collector function option 1 46 TCST1 07 00 Evacuated tube collector starting time 1 47 TCEN1 19 00 Evacuated tube collector ending time 1 47 TCRU1 30 s Evacuated tube collector runtime 1 47 TCIN1 3...

Page 30: ...time 48 PSPEE OFF Pause speed option 51 PDELA OFF Pump delay option 51 COOL Cooling functions OSYC OFF System cooling 51 OSTC OFF Tank cooling 51 OHDP OFF Heat dump 51 OTH Thermostat function option 56 PUMP Speed PUMP1 OnOF Speed variant pump 1 45 PUMP2 OnOF Speed variant pump 2 45 PUMP3 OnOF Speed variant pump 3 45 MAN Manual mode MAN1 Auto Manual mode 1 56 MAN2 Auto Manual mode 2 56 MAN3 Auto Ma...

Page 31: ... can be loaded with priority System 9 3 tank solar system with east west collectors Sensor terminal Designation Description S1 TCOL Temperature collector 1 S2 TST1B Temperature tank 1 bottom S3 TCOL2 Temperature collector 2 S4 TST2B Temperature tank 2 bottom S5 TST3B Temperature tank 3 bottom V40 optional flowmeter Relay Description R1 Solar pump tank 1 R2 Solar pump tank 2 R3 Valve tank 1 2 3 R4 ...

Page 32: ...temperature difference 3 44 DT3S 10 0 K 20 0 Ra Set temperature difference 3 44 RIS3 2 K 4 Ra Rise 3 44 LST3 ON Loading tank 3 45 COL 1 Collector CEM 130 C 270 F Collector emergency temperature 46 OCCO OFF Collector cooling option 46 CMAX 110 C 230 F Collector maximum temperature 46 OCMN OFF Collector minimum limitation option 46 CMIN 10 0 C 50 0 F Minimum collector temperature 46 OTCO OFF Evacuat...

Page 33: ...k set option 50 TST1 45 C 120 F Set tank temperature tank 1 50 TST2 45 C 120 F Set tank temperature tank 2 50 TSTS3 45 C 120 F Set tank temperature tank 3 50 tLB 2 min Loading break time 48 tRUN 15 min Circulation runtime 48 PSPEE OFF Pause speed option 51 PDELA OFF Pump delay option 51 COOL Cooling functions OSYC OFF System cooling 51 OSTC OFF Tank cooling 52 PUMP Speed PUMP1 OnOF Speed variant p...

Page 34: ...ctrical 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 adjust ment channel ADAP has to be selected VBus PWM ...

Page 35: ...the value the function or the option using the buttons 2 and 4 Î Î Confirm the selection with button 5 per manently appears the adjustment has been saved If no button has been pressed within a couple of min utes the adjustment is cancelled and the previous value is retained The menu structure of the controller consists of 3 levels the status level the menu level and the adjust ment level The statu...

Page 36: ...ystem state Symbol normal flashing Relay active Maximum tank limitation active maximum tank tem perature exceeded Collector cooling function active System cooling tank cooling active Antifreeze function activated Collector minimum limitation active Antifreeze function active Collector emergency shutdown Sensor fault Manual mode active Tank emergency shutdown active Adjustment channel is being chan...

Page 37: ...stem monitoring display The system selected is indicated in the system moni toring display It consists of several system component symbols which are depending on the current status of the system either flashing permanently shown or hidden Collectors with collector sensor 3 port valves Only the flow direction or current switching position are indicated Tanks 1 2 and 3 with heat exchanger Pump Tempe...

Page 38: ...flow energy metering TRHQM Temperature return energy metering n1 Speed relay 1 n2 Speed relay 2 n3 Speed relay 3 h R1 Operating hours relay 1 h R2 Operating hours relay 2 h R3 Operating hours relay 3 h R4 Operating hours relay 4 L h Flow rate kWh Heat quantity in kWh MWh Heat quantity in MWh TDIS Temperature thermal disinfection CDIS Countdown of monitoring period thermal disinfection DDIS Countdo...

Page 39: ...es 2 Unit Î Adjust the desired unit 4 Date Î Adjust the date First of all adjust the year then the month and then the day 5 System Î Adjust the desired system Note If the desired system layout has been se lected in the ARR channel the ROSA chan nel can be skipped 6 ROSA Î Enter the 4 digit number given by the Online Service Assistant ...

Page 40: ...in systems with two 3 port valves ARR 5 7 9 Î Complete the commissioning menu by pressing button 5 The controller is then ready for operation and nor mally the factory settings will give close to optimum operation 11 Minimum speed Î Adjust the minimum speed of the pump PUMP1 For systems with 3 pumps the adjustments must also be carried out for PUMP2 PUMP3 Note The minimum speed can only be adjuste...

Page 41: ...4 and S5 S3 S4 S5 Sensor temperatures Display range 40 0 260 0 C 40 0 500 0 F Indicates the current temperature at the correspond ing additional sensor without control function S3 Temperature sensor 3 S4 Temperature sensor 4 S5 Temperature sensor 5 Display of further temperatures DTS1 DTS2 SENTH TFHQM TRHQM Further measured temperatures Display range 40 0 260 0 C 40 0 500 0 F Indicates the current...

Page 42: ... sensors S1 flow and S4 return are used for calcu lating the heat quantity supplied It is shown in kWh in the channel kWh and in MWh in the channel MWh The overall heat quantity results from the sum of both values The accumulated heat quantity value can be set back to 0 As soon as one of the display channels of the heat quantity is selected the symbol is displayed Î In order to access the RESET mo...

Page 43: ...ion is activated this function switches on the relays one af ter another every day at 12 00 a m for 10 s at 100 6 2 Adjustment channels Note If the controller is commissioned for the first time the commissioning menu will start Selecting a new system subsequently will reset all other adjustments to the fac tory settings Selecting the system ARR System Adjustment range 1 9 Factory setting 1 Selecti...

Page 44: ...ches the adjusted maxi mum temperature the tank will no longer be loaded in order to avoid damage caused by overheating The symbol is shown on the display if the tank tem perature exceeds the maximum value The corresponding reference sensor can be chosen see Sensor maximum tank temperature Switch on hysteresis 2 K 4 Ra Sensor maximum tank temperature LOAD 1 2 SMXS1 2 Sensor tank maximum temp Adjus...

Page 45: ...control can be carried out via an adapter e g theVBus PWM interface adapter Note With the factory setting speed control is not possible Note For more information about connecting HE pumps see page 34 Minimum speed PUMP1 2 3 n1 2 3 LO Speed control Adjustment range 30 100 20 100 if ADAP is adjusted in steps of 5 Factory setting 30 In the adjustment channel n1 2 3 LO a relative mini mum speed for co...

Page 46: ...solar pump R1 R2 is switched off in order to protect the system components against overheating collector emergency shutdown If the maximum collector temperature is exceeded is displayed flashing Collector cooling COL 1 2 OCCO 1 2 Selection OFF ON Factory setting OFF This function is used for keeping the system tempera tures and consequently the thermal load as low as possible When the tank tempera...

Page 47: ...ime the pump will be run at the adjusted minimum speed nLO If the collector sensor is defective or the collector is blocked this function is suppressed or switched off 2 collector systems In 2 collector systems the evacuated tube collector function is available for each collector field OTCO2 If one of the collector fields is being loaded the heat transfer fluid flows through the inactive field and...

Page 48: ...this function uses the limited heat quantity of the tank the antifreeze function should be used in regions with few days of temperatures around the freezing point Note This function can only become active if the tank temperature is higher than the collec tor temperature Priority logic LLOGI LogiC Priority logic Selection Prio SuLA StUF PAr bLO Factory setting PRIO LLOGI PRIO1 2 3 Priority Adjustme...

Page 49: ... subordi nate tank s next in priority be loaded 3 In progressive loading StUF the tank with the low est temperature is loaded first As soon as the tem perature of the tank being loaded exceeds the tem perature of the next tank by 5 K loading switches to the cooler tank If the temperature of that tank is by 5 K higher than the temperature of the third tank load ing switches to the third tank From t...

Page 50: ...es After that the priority tank is loaded up to its maximum temperature then tank 2 and then tank 3 Spreaded loading option only in ARR 3 4 6 with differing priority LLOGI PRIO OSE Spreaded loading option Selection ON OFF Factory setting OFF Spreaded loading option OSE In 2 and 3 tank systems with 2 or 3 pumps a spreaded loading option can be activated As soon as the adjustable spread difference D...

Page 51: ...he tank sensor reach es 95 C 200 F all cooling functions will be blocked The switch on hysteresis is 2 K 4 Ra System cooling CooL OSYC System cooling option Adjustment range OFF ON Factory setting OFF Note This function will only be available if the col lector cooling function and the heat dump function are deactivated COOL DTCO Switch on temperature diff Adjustment range 1 0 30 0 K 2 0 60 0 Ra in...

Page 52: ...DP is activated the se lected relay is energized with 100 if the collector temperature reaches the adjusted collector overtem perature OTCL If the collector temperature falls by 5 K 10 Ra below the adjusted collector overtem perature OTCL the relay will be switched off A selection can be made between pump logic and valve logic OTPUM ON pump logic OTPUM OFF valve logic If pump logic is selected the...

Page 53: ... difference DT4S and rise RIS4 are valid Note The heat exchange function is only available in arrangement 2 and 4 Maximum temperature limitation for the heat exchange DT4 MAX4O Switch on temperature Adjustment range 0 5 95 0 C 31 0 200 0 F in steps of 0 5 C 1 0 F Factory setting 60 0 C 140 0 F DT4 MAX4F Switch off temperature Adjustment range 0 0 94 5 C 30 0 199 0 F in steps of 0 5 C 1 0 F Factory...

Page 54: ...rature Adjustment range 0 0 95 0 C 30 0 200 0 F in steps of 0 5 C 1 0 F Factory setting 65 0 C 150 0 F DT4 TH1F Switch off temperature Adjustment range 0 0 95 0 C 30 0 200 0 F in steps of 0 5 C 1 0 F Factory setting 60 0 C 140 0 F If the adjusted value TH1O is exceeded the relay will be switched on If the temperature falls below the adjusted value TH1F the relay will be switched off Maximum limita...

Page 55: ...ment range 0 0 250 0 C 30 480 F in steps of 0 5 C 1 0 F Factory setting 45 0 C 120 0 F OTH t1O Switch on time 1 Adjustment range 00 00 23 45 Factory setting 06 00 in steps of 15 min In order to block the thermostat function for a cer tain period there are three time frames t1 t3 The switch on and switch off times can be adjusted in steps of 15 minutes If the switch on and the switch off times are ...

Page 56: ... of the controller can be manually adjusted For this pur pose select the adjustment value MAN The following adjustments can be carried out Auto relay in automatic mode ON relay is switched on OFF relay is switched off nLO relay is switched with adjusted minimum speed nHI relay is switched with adjusted maximum speed The controller is equipped with a shortcut that ena bles a quick access to the MAN...

Page 57: ...e disinfection temperature If the temperature at the reference sensor exceeds the disinfection temperature by more than 5K the reference relay switches off until the temperature has fallen below a value of 2K 4 Ra above the disinfec tion temperature Thermal disinfection can only be completed when the disinfection temperature is exceeded for the duration of the disinfection period without interrupt...

Page 58: ... thermal disinfection Adjustment range 2 3 4 Factory setting system dependent The relay for the thermal disinfection function can be selected Parallel relay OPARR PARRE Parallel relay Adjustment range 2 3 4 Factory setting 2 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 ...

Page 59: ...mp speed OHQM MED Antifreeze concentration in vol MED is hidden when MEDT 0 or 3 is used Adjustment range 20 70 in steps of 1 Factory setting 45 Antifreeze type 0 water 1 propylene glycol 2 ethylene glycol 3 Tyfocor LS G LS OHQM FIMP Pulse rate Adjustment range 0 5 99 0 in steps of 0 1 Factory setting 1 0 Energy metering withV40 flowmeter The energy metering calculation uses the difference between...

Page 60: ...tered The following table shows the numbers available for the BX L with the corresponding system layouts System ROSA number ARR1 5 ARR2 16 ARR3 6 ARR4 17 ARR5 225 ARR6 226 ARR7 227 ARR8 29 ARR9 228 Valve logic VLOG Valve logic Adjustment range 1 2 3 4 Factory setting 1 In this adjustment channel the valve logic can be adjusted Ventillogik 1 2 3 4 Durchf im stro Ventillogik 1 2 3 4 Durchflussrichtu...

Page 61: ...ty limit is reached OSDC REMC Safely remove card Adjustment range ON OFF Factory setting OFF Completing the logging process Î Select the menu item REMC Î After REM is displayed remove the card from the slot OSDC FORM Format card Formatting the SD card 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 form...

Page 62: ... 8 0 Ra T function switch off difference 54 RIS4 2 K 4 Ra T function rise 55 TH1O 65 0 C 150 0 F Thermostat function 1 switch on temperature 55 TH1F 60 0 C 140 0 F Thermostat function 1 switch off temperature 55 TH2O 45 0 C 120 0 F Thermostat function 2 switch on temperature 55 TH2F 50 0 C 125 0 F Thermostat function 2 switch off temperature 55 DTREL 4 T function relay 55 OTH Thermostat function o...

Page 63: ... TSDIS 3 Temperature sensor for disinfection 58 OTDIS ON Deactivation Thermal disinfection 58 OPARR Parallel relay option 58 PARRE 2 Parallel relay 58 INVER OFF Inversion 58 OHQM Energy metering option 58 FTYPE 1 Flow rate detection type 58 FMAX 6 l min Adjustable maximum flow rate 59 FIMP 1 l lmp Pulse rate 59 MEDT 1 Antifreeze type 59 MED 40 Antifreeze concentration 59 SFHQM 1 Sensor flow HQM 59...

Page 64: ... ed via a user code customer For safety reasons the user code should generally be set to the customer code before the controller is handed to the customer 1 Expert 0262 Factory setting All menus and adjustment values are shown and all values can be altered 2 Customer 0000 The expert level is not shown adjustment values can be changed partly see below Î Î In order to restrict the access enter 0000 ...

Page 65: ...and reconnect it 888 8 no 88 8 yes Directional pad flashes red The symbol is in dicated on the display and the symbol flashes The directional pad is permanently off WARNING Electric shock Upon opening the housing live parts are exposed Î Î Always disconnect the con troller from power supply before opening the housing Cable is broken Check the cable Short circuit Check the cable C F Ω Pt500 Ω Pt100...

Page 66: ...atscrew sensor instead of sensor in immersion sleeves Replace Vent the system increase the system pressure to a static primary pressure of at least plus 0 5 bar if necessary continue to increase pressure switch the pump off and on for a short time Change ΔTon and ΔToff correspondingly Check if necessary replace Decalcify it Clean it Replace with correctly sized one Change ΔTon and ΔToff correspond...

Page 67: ...ation Check whether the pumps of the after heating circuit run at night check whether the non return valve is defective problem solved no no yes yes no yes no yes yes yes no no yes no yes no no Tanks cool down at night a a a b Check the non return valve in warm water cir culation o k Clean or replace it Further pumps which are connected to the solar tank must also be checked The gravitation circul...

Page 68: ...d parameters glycol type concentration heat capacity etc The kit includes theV40 flowmeter 2 temperature sensors and 2 sensorwells NPT a a b b Operating control lamp of the controller illumi nated Is the pump current enabled by the controller Turn the pump shaft using a screwdriver now passable Is the pump stuck Does the pump start up in manual operation There is no current check fuses replace the...

Page 69: ... connection to controllers withVBus It is used for visualising data issued by the controller collector temperature tank temperature and energy yield of the solar thermal system The use of high efficiency LEDs and filter glass assures a high optical brilliance and good readability even in poor visibility conditions and from a larger distance An additional power supply is not required One module is ...

Page 70: ... temperature 44 Maximum temperature limitation 53 54 Minimum collector limitation 46 Minimum speed 45 Minimum temperature limitation 53 54 Monitoring period display channel 42 O Operating hours counter 42 P Parallel relay 58 Pause control 51 Priority logic 48 Pump control 45 S SD card 61 Selecting the system 43 Sensor maximum tank temperature 44 Speed 42 Speed control 44 Spreaded loading option 50...

Page 71: ...en US CA 71 Notes ...

Page 72: ...amples They can only be used at your own risk No liability is assumed for incorrect incomplete or false information and or the resulting damages Note The design and the specifications can be changed without notice The illustrations may differ from the original product Imprint This mounting and operation manual including all parts is copyrighted Another use outside the copyright requires the approv...

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