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Robur K18 Simplygas, Installation Manual

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Robur K18 Simplygas Installation Manual Download Page 25

Electrical hookup 

Installation manual – System controller 

25

3

3.5 

 

 COLLEGAMENTO CONSENSI ESTERNI

Figure 3�9  

 Connection of optional external request signals (thermostats, thermostat timers, timers) to RVS21.826

A 

 Grey connector X86 (bottom edge of 

RVS21.826 board)

B 

 NO voltage free contact (must be SELV)

C1   Thermostat (with timer) for zone 1 (or 

circuit 1)

C2   Thermostat (with timer) for zone 2 (or 

circuit 2)

Summary of Contents for K18 Simplygas

Page 1: ...Installation manual for modulating absorption methane condensing heat pump renewable aerothermal energy K18 System controller ...

Page 2: ...of this Installation manual other than for personal consultation must be previously authorised by Robur S p A The rights of those who have legitimately filed the registered trademarks contained within this publication are not affected With the aim of continuously improving the quality of its products Robur S p A reserves the right to modify the data and contents of this Installation manual without...

Page 3: ...nnectionp p 21 3 3 Water circulation pump connectionp p 22 3 4 Mixer diverter valve connectionp p 23 3 5 Collegamento consensi esternip p 25 3 6 K18 unit connection to CSK18 enclosurep p 26 3 7 Temperature probes connection to K18 unitp p 27 3 8 Auxiliary boiler connection if present to the K18 unit only for K18 Simplygas models p 27 4 Commissioning p 28 4 1 Using the QAA75 611 advanced room unit ...

Page 4: ...gas type of unit and consists of an integrated boiler module whereas it is optional in K18 Simplygas units not necessarily supplied by Robur and connected to the plumbing system out side the unit TAC Technical Assistance Centre authorised by Robur DHW domestic hot water III WARNINGS III 1 GENERAL AND SAFETY WARNINGS Installer s qualifications Installation must exclusively be performed by a Qualifi...

Page 5: ...optional code ODSP005 and QAA55 110 optional code ODSP004 The KECSK18 expansion kit is also available as an optional op tional code ODSP030 this allows you to support additional types of circuit as described in its installation manual III 4 EXCLUSIONS OF LIABILITY AND WARRANTY Any contractual or extra contractual liability of the man ufacturer for any damage caused by incorrect installa tion and o...

Page 6: ...p 7 1 4 p 8 e 1 5 p 8 water circulation must be guaranteed to handle the K18 unit s antifreeze cycle In the diagrams given in Figure 1 2 p 7 and 1 5 p 8 this requires that a outlet inlet bypass is installed with overpressure valve set to open only when both zone valves are closed For the di agrams given in Figure 1 1 p 6 and 1 4 p 8 it may be sufficient to ensure circulation in one branch of the d...

Page 7: ... GHP CSK18 HC1 E G F Q2 HC2 G Q6 GHP A D K18 CONTROL CABLE AUX BOILER 230V W PUMP 0 10V W PUMP Figure 1 3 System with K18 Simplygas unit primary and secondary water circuits up to two heating circuits one of which is optionally mixed aux iliary boiler and DHW production optionals A Unit K18 Simplygas B Auxiliary boiler optional C check valve to be installed only in the presence of an auxiliary boi...

Page 8: ... Room unit 1 QAA75 611 P A ST B9 B3 Q3 F ST CSK18 HC1 GHP K18 CONTROL CABLE Figure 1 5 System with K18 Hybrigas unit primary water circuit only and two zones DHW production optional A K18 Hybrigas unit E By pass section with overpressure valve F Room unit 1 QAA75 611 G Thermostats with timer for zones P A ST B9 B3 Q3 ST CSK18 GHP HC1 G F Q2 HC2 G Q6 E K18 CONTROL CABLE ...

Page 9: ...e suitable cable glands not included to maintain the indicated protection rating if necessary Before installing the unit check that the equipment is not connected to its power supply The cabling must satisfy the requirements of safety class II i e the mains power cables and the SELV cables must be ducted separately Also keep a distance of at least 50 mm between the ducts that contain mains cables ...

Page 10: ...TROLLER ENCLOSURE Assembly and installation Figure 2 1 External overall dimensions for CSK18 enclosure A Input of connections to the mains B Input of safety extra low voltage SELV connections C Not used P K18 fault reset button A A C A B B C B B C C C P ...

Page 11: ...included extractable connectors which fit directly onto the board Table 2 1 p 12 lists the Line Voltage supply and signal con nections on the extractable connectors at the left edge of the Siemens RVS21 826 board with reference to the electronic board orientation inside the enclosure see Figure 2 1 p 10 while Table 2 2 p 12 lists the Line Voltage supply and signal connections on the terminal block...

Page 12: ...n place of Q3 see Table 2 2 p 12 if the DHW diverter valve is set to DHW when the phase is NOT present at the output in addition to Q3 if the valve has an actuator with two terminals which are excited alternately to set the valve to Heating or DHW 2 If expansion kit KECSK18 is used connect Q6 as shown in table 2 1 of the expansion kit s installation manual 3 Connect the valve to the CTRL output Ta...

Page 13: ...and H1 H3 2 Input H3 is open to keep heating circuit 2 inactive If this heating circuit is present fit a jumper between terminals H3 and H1 H3 or insert an external request signal between them voltage free contact Table 2 4 SELV signal connection to bottom RH terminal block in CSK18 enclosure Function description Group of terminals AL K18 unit alarm signal input GAHP K18 CONTROL CABLE AL K18 unit ...

Page 14: ...ssembly and installation Figure 2 3 Description of installation procedure for QAC34 external sensor H H 2 1 N N W 3 min2 5 m 1 2 4 Figure 2 4 QAC34 external room sensor dimensions 49 7 91 6 79 8 3 8 5 5 5 14 1 25 24 5 49 5 9 5 4 5 5 6 ...

Page 15: ...temper ature as accurately as possible it should therefore be out of the way of draughts sunlight and other sources of heat if wall mounted leave enough space above the unit for it to be installed and removed when necessary Once removed from its base the room unit is no longer powered and is thus inactive Installation Figure 2 6 Description of installation procedure for room unit QAA55 110 Do not ...

Page 16: ...cription of mounting holes for room unit QAA55 110 96 96 91 47 1 2 4 2 56 60 56 60 2 3 2 Electrical hookup Figure 2 8 Description of hookup procedure for room unit QAA55 110 1 3 4 5 6 2 Table 2 6 Room unit QAA55 110 connections Terminal Name Description 1 BSB Data bus BSB 2 M Data bus BSB ...

Page 17: ...per ature as accurately as possible it should therefore be out of the way of draughts sunlight and other sources of heat if wall mounted leave enough space above the unit for it to be installed and removed when necessary Once removed from its base the room unit is no longer powered and is thus inactive Installation Figure 2 10 Description of installation procedure for room unit QAA75 611 Do not in...

Page 18: ...iption of mounting holes for room unit QAA75 611 4 2 56 60 56 60 100 80 42 185 100 82 Electrical hookup Figure 2 12 DescriptionofhookupprocedureforroomunitQAA75 611 Table 2 7 Room unit QAA75 611 connections Terminal Name Description 1 BSB Data bus BSB 2 M Data bus BSB 3 G Power 12 V DC ...

Page 19: ...ar 3 7 p 27 4 GHP temperature sensor connection see par 3 7 p 27 5 Connection of 0 10 V signal on the optional external water pump only for K18 Simplygas C0 models see manual of specific K18 unit used 6 Optional auxiliary boiler connection only for K18 Simplygas models see Paragraph 3 8 p 27 7 Supply connection on the optional external water pump only for K18 Simp lygas C0 models see manual of spe...

Page 20: ...B Room unit 1 QAA75 611 C Ambient unit 2 QAA55 110 optional code ODSP004 NOTE Use shielded signal cable 3x0 75 mm2 2x0 75 mm2 for QAA55 110 Maximum total length 400 m Maximum length between controller and room unit 200 m Both room units can also be connected to connector X86 B C GX1 H3 M H1 1 X86 G M BSB 1 2 3 1 2 A Table 3 1 QAA75 611 and QAA55 110 optional room unit connection RVS21 826 QAA75 61...

Page 21: ...oard B Grey connector X80 right edge of RVS21 826 board B1 NTC 10k Beta 3977 temperature sensor B3 NTC 10k Beta 3977 temperature sensor B9 NTC 1k temperatrue sensor included Use of temperature sensors B9 always B1 only if heating circuit 1 is mixed B3 only if DHW service is provided with K18 only EVO versions Use shielded cable 2 x 0 5 mm2 up to 40 m 2 x 0 75 mm2 up to 60 m 2 x 1 0 mm2 up to 80 m ...

Page 22: ...f RVS21 826 board Q2 Heating circuit 1 pump KC1 Relay not supplied 3 3 2 Heating circuit 2 pump connection diagram if present Figure 3 4 Direct or external relay connection of heating circuit 2 pump to RVS21 826 A Green connector X12 left edge of RVS21 826 board Q6 Heating circuit 2 pump KC2 Relay not supplied NOTE If expansion kit KECSK18 is used connect Q6 as shown in figure 3 3 of the expansion...

Page 23: ...l phase present in DHW service N Neutral Q3 Diverter valve CASE 1 Valve with power always present position controlled by signal 230VAC phase no phase heating phase DHW Figure 3 6 Q3 diverter valve connection to CSK18 enclosure terminal block and RVS21 826 Case 2 A Detail of CSK18 enclosure terminal block B Flow from K18 C DHW coil outlet D Heating outlet E Fixed phase power F Signal phase present ...

Page 24: ...ce G Orange connector X15 left edge of RVS21 826 board N Neutral Q3 Diverter valve CASE 3 Valve with two signals 230VAC phase alternative ly active for DHW and heating 3 4 2 Y1 Y2 mixer valve connection if present Figure 3 8 Y1 Y2 mixer valve connection for mixed heating circuit 1 to RVS21 826 A Green connector X12 left edge of RVS21 826 board B Flow from system C Heating circuit 1 outlet D Heatin...

Page 25: ...Figure 3 9 Connection of optional external request signals thermostats thermostat timers timers to RVS21 826 A Grey connector X86 bottom edge of RVS21 826 board B NO voltage free contact must be SELV C1 Thermostat with timer for zone 1 or circuit 1 C2 Thermostat with timer for zone 2 or circuit 2 ...

Page 26: ...0 75 mm available as OCVO009 optional Maximum length 50 m NOTE Connect the shield to the ground terminals at both ends Using DIN 47100 conforming cable colour coded simplifies the hookup see Table 3 2 p 26 AL AL 0 10 COM RES DHW K18 EXTERN RESET REQ K18 CONTROL CABLE K18 CONTROL CABLE COM 0 AL AL 10 DHW REQ RES A C B Table 3 2 Wire colours per DIN47100 Wire n Wire colour 1 White 2 Brown 3 Green 4 ...

Page 27: ...an aged by the K18 unit is present Use shielded cable 2 x 0 5 mm2 up to 40 m 2 x 0 75 mm2 up to 60 m 2 x 1 0 mm2 up to 80 m 2 x 1 5 mm2 up to 120 m Connect the shield to a ground terminal on the K18 unit s terminal block 3 8 AUXILIARY BOILER CONNECTION IF PRESENT TO THE K18 UNIT ONLY FOR K18 SIMPLYGAS MODELS Figure 3 12 ON OFF request connection optional 0 10 V output temperature setpoint and opti...

Page 28: ...oint 9 and then execute steps 1 and 2 If you do nothing for 8 minutes the device will automati cally inlet to its main page The menu levels End user Commissioning Engineer OEM vary both in the number of their submenus and the number of parameters in each submenu Work at the menu level indicated in the description of an operation and not at a higher level to avoid involuntarily modi fying parameter...

Page 29: ...he installation and startup were successful 4 3 FUNCTIONAL TESTS These tests are not strictly necessary however they allow you to quickly identify most problems with the electrical hookup and system anomalies we strongly recommend running them 4 3 1 Testing the inputs and outputs 1 Access the Commissioning menu level select the Input out put test menu and select parameter 7700 Relay test 2 Set it ...

Page 30: ...hibits the operational request to the K18 unit Some of its components may continue to run for a few minutes as it runs its shutdown cycle The following steps can be run without waiting for the unit to shut down completely 9 Access the K18 unit s terminal block and check that the DC voltage between the COM and REQ terminals is around 15V 10 Also check the DC voltage between the 0 and 10 terminals o...

Page 31: ...ing cir cuit 2 menu select parameter 1000 Operating mode and set it to Protection 3 Press ESC twice to inlet to the start screen 4 If DHW production is present press the QAA75 611 room unit s top left button to deactivate it the hyphen shown at the top left corner of the display under the water tap symbol disappears 5 Leave the system powered on and the gas line open If you do not wish to ensure a...

Page 32: ...ing on the time program ming Comfort the circuit or zone works with the room setpoint set to Comfort This setting forces the heating service to run even when the system is in summer mode Reduced the circuit or zone works with the room setpoint set to Reduced Protection the circuit or zone works with the room set point set to Protection anti icing If you select Automatic mode the preconfigured time...

Page 33: ...curve graph Each curve plots the outlet temperature against the external room temperature when the room setpoint temper ature is 20 C Tacq water temperature Tamb external ambient temperature T amb T acq 5 1 5 Setting the Room influence and Room temperature limitation parameters When a room unit is installed in a heated room reference room it acquires the local temperature and interacts with the co...

Page 34: ...tions for heating circuit 2 which does not directly serve the reference room If on the other hand the situation is as follows Case 2 the included room unit is not installed in a reference heated room for example it is in the machine room In this case one must configure the room unit so as not to pro vide the room temperature signal to the system Proceed as follows 1 Access the Engineer menu level ...

Page 35: ...ode is chosen the preconfigured time programming includes a first daily time period at the nominal setpoint from 00 00 to 05 00 followed by a second time period from 17 00 to 21 00 To change this setting 1 Access the End user menu level then the Time pro gram 4 DHW menu 2 Select parameter 560 Preselection and set it to the desired value The value indicates the days of the week for which the follow...

Page 36: ... module models K18 Hybrigas or the optional aux iliary boiler models K18 Simplygas However you can change various aspects of the control method of the integrated boiler module or the auxiliary boiler by setting other parameters of the K18 unit For further details and instructions refer to the Installation use and maintenance manual of the K18 unit ...

Page 37: ... the problem Disconnect the sensor from the RVS21 826 controller and measure the resistance between the cable s two wires If the measurement indicates a short or open circuit identify and resolve the problem which may be due to the sensor itself or its wiring Once the problem has been resolved reconnect the sensor and memorize it again as indicated in step 1 4 If step 3 does not resolve the proble...

Page 38: ...l still be no this is normal this setting executes an action i e memoriza tion of the actually installed sensors Wait for a minute 2 If step 1 does not resolve the problem Power the System controller off and on again if the problem persists contact the Robur Technical Sup port Centre G Codes 330 331 332 333 This problem is due to the physical presence of a sensor con nected to one of inputs BX1 BX...

Page 39: ...e factory settings The factory settings can only be restored if any previous settings have not already been saved using parameter 6204 Save parameters If so using parameter 6205 will simply recall the settings saved to memory Since saving a configuration overwrites the factory de faults we recommend not doing so this means you can always recall the factory settings if you think your custom configu...

Page 40: ...tacts DC 12 V DC 3 mA Sensor inputs BX1 BX4 NTC 1k QAC34 external sensor NTC 10k QAZ36 QAD36 Pt1000 optional for solar collector and exhaust gas sensor 5053 9671 Ω room setpoint modification function Sensor cables copper Cross section Max length 0 25 0 5 0 75 1 0 1 5 mm 20 40 60 80 120 m Outputs Relay outputs QX1 QX5 Current range Switching ON current Total current Voltage range AC 0 02 2 2 A max ...

Page 41: ...y EU CE1T2355xx04 Climatic conditions Storage per EN60721 3 1 Transport per EN60721 3 2 Operation per EN60721 3 3 class 1K3 20 65 C class 2K3 25 70 C class 3K5 20 50 C non condensing Weight Packaging excluded 193 g Table QAA75 611 QAA55 110 technical data Power supply Bus powered BSB Room temperature measurement Measurement range 0 50 C Per EN12098 Range 15 25 C Range 0 15 C or 25 50 C Resolution ...

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Page 44: ... 888111 F 39 035 884165 www robur it robur robur it 10 03 2017 17MEDSDC006 Code D LBR807 Revision A Robur is dedicated to dynamic progression in research development and promotion of safe environmentally friendly energy efficiency products through the commitment and caring of its employees and partners Robur mission ...

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