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Warnings

Installation, use and maintenance manual – K18 Simplygas

III

or mental disabilities or persons with poor knowledge

and experience with use of the appliance.

Gas component tightness

Before performing any operation on gas ducting compo-

nents, close the gas valve.

Upon completing any procedure, perform the tightness

test according to regulations in force.

Gas smell

If you smell gas:

Do not use electrical devices such as telephones, mul-

timeters or other equipment that may cause sparks next

to the appliance.

Shut off the gas supply by turning the valve off.

Switch off the power supply via the external disconnect

switch in the power supply electrical panel.

Use a telephone away from the appliance to ask for inter-

vention from qualified personnel.

Poisoning

Ensure the flue gas ducts are tightness and compliant

with the regulations in force.

Upon completing any procedure, ensure the tightness of

the components.

Moving parts

The appliance contains moving parts.

Do not remove guards during operation, and in any case

prior to disconnecting the power supply.

Burn hazard

The appliance contains very hot parts.

Do not open the appliance and do not touch internal

components before the appliance has cooled down.

Do not touch the flue gas exhaust before it has cooled

down.

Pressure vessels

The appliance has a sealed circuit classified as pres-

sure vessel, the tightness of which is tested by the

manufacturer.

Do not carry out any intervention on the sealed circuit or

on the appliance's valves.

Water-ammonia solution

The unit uses the ammonia-water absorption cycle. The

water-ammonia solution is contained in the tightness

circuit. The solution is harmful for health if it is ingested,

inhaled or comes in contact with the skin.

In the event of coolant leak keep away and disconnect

the power and gas supply (only if it is possible to do so

with no danger).

Ask for TAC intervention.

Electrocution hazard

Disconnect the electrical power supply before any oper-

ation on appliance components.

For electrical connections exclusively use compli-

ant components and according to the specifications

provided by the manufacturer.

Ensure the appliance cannot be accidentally switched

back on.

Earthing

Electrical safety depends on effective earthing system,

correctly connected to the appliance and installed ac-

cording to the regulations in force.

Distance from combustible or flammable materials

Do not deposit flammable materials (paper, diluents,

paints, etc.) near the appliance.

Limescale and corrosion

Depending on the chemical/physical properties of the

system water, limescale or corrosion may damage the

appliance (Paragraph 3.8

p. 27).

Check system sealing.

Avoid frequent top-ups.

Chloride concentration

The concentration of chlorides or free chlorine in the

system water must not exceed the values in Table

3.2

p. 27.

Aggressive substances in the air

Halogenated hydrocarbons containing chlorine and flu-

orine compounds cause corrosion. The air of the installa-

tion site must be free from aggressive substances.

Acid flue gas condensate

Discharge the acid condensate of combustion flue gas,

as indicated in Paragraph 3.12

p. 29, in compliance

with current exhaust regulations.

Switching the appliance off

Disconnecting the power supply while the appliance

is running may cause permanent damage to internal

components.

Except in the event of danger, do not disconnect the

power supply to switch off the appliance, but always

and exclusively act through the provided control device

for heating service (OQLT021, OCDS007, or external re-

quest) or for DHW service (OQLT021 or external request).

In the event of failure

Operations on internal components and repairs may

exclusively be carried out by a TAC, using only original

parts.

In the event of failure of the appliance and/or breakage

of any component, do not attempt to repair and/or re-

store and immediately contact the TAC.

Routine maintenance

Proper maintenance assures the efficiency and good op-

eration of the appliance over time.

Maintenance must be performed according to the man-

ufacturer's instructions (see Chapter 7

p. 48) and in

Содержание K18 Simplygas

Страница 1: ...ing gas absorption heat pump using aerothermal renewable energy and natural gas for heating and buffer tank domestic hot water production Installation use and maintenance manual K18 Simplygas Nominal heat output 18 9 kW ...

Страница 2: ...d 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 use and maintenance manual without prior notice Revision H Code D LBR687 DISPOSAL The appliance and all its accessories must be disposed of separately in accordance with the regulations in force Use of the ...

Страница 3: ... condensate discharge p 29 3 13 Defrosting water drainage p 29 4 Electrical installer p 29 4 1 Warnings p 29 4 2 Electrical systems p 30 4 3 Electrical power supply p 31 4 4 Control system p 31 4 5 Diverter valve for DHW production p 32 4 6 Alarm indicator lamp p 33 4 7 Remote the board error reset p 34 4 8 Temperature probes p 34 4 9 How to connect an auxiliary heat generator p 35 4 10 Winter kit...

Страница 4: ...nit to con trol all functions and to provide interface with other devices and with the user III WARNINGS III 1 GENERAL AND SAFETY WARNINGS Installer s qualifications Installation must exclusively be performed by a qualified firm and by qualified personnel with specific knowledge on heating cooling electrical systems and gas applianc es in compliance with the laws in force in the Country of install...

Страница 5: ...ower supply before any oper ation on appliance components For electrical connections exclusively use compli ant components and according to the specifications provided by the manufacturer Ensure the appliance cannot be accidentally switched back on Earthing Electrical safety depends on effective earthing system correctly connected to the appliance and installed ac cording to the regulations in for...

Страница 6: ...and heat pumps Other applicable provisions and standards The design installation operation and maintenance of the sys tems shall be carried out in compliance with current applicable regulations depending on the Country and location and in ac cordance with the manufacturer s instructions In particular reg ulations regarding the following shall be complied with Gas systems and equipment Electrical s...

Страница 7: ...zone circuits via the system controller heat input 11 2 kW delivered heat output 18 9 kW 1 1 2 Operation The K18 Simplygas heat pump is based on the thermodynam ic water ammonia absorption cycle H20 NH3 and produces hot water using outdoor air as a renewable energy source cold source and natural gas as primary energy The thermodynamic cycle takes place within a hermetically sealed circuit in welde...

Страница 8: ...er will run at maximum power reducing the necessary time for the operating conditions to be reached and ensuring the optimal comfort even in harsher environmental conditions If the heating system design require the water tem perature to be higher than the maximum that can be dispensed by the heat pump in high thermal demand conditions scenario E the auxiliary boiler can be acti vated as its replac...

Страница 9: ...re possible 1 Fixed comfort setpoint 24 hours day 2 Fixed comfort setpoint with the possibility to deactivate the DHW request via external contact comfort OFF 3 Fixed comfort setpoint or DHW buffer tank antifreeze pro tection via external contact comfort antifreeze 4 Variable setpoint comfort and reduced according to pro gramming with external timer 5 Fixed setpoint with anti legionella function w...

Страница 10: ...gas outlet Ø 80 mm E Flue gas condensate and defrosting water drain Ø 20 mm F Flue gas condensate and defrosting water discharge conveyor G Gas connection Ø 1 2 M H Burner ON green indicator lamp I Transparent cover which can be detached to access the user interface keys J Reset unlock button I J C A B H G D E F 722 1333 95 69 375 83 152 100 100 686 1145 189 101 55 1068 62 80 202 296 228 ...

Страница 11: ...PONENTS Figure 1 4 Left front view heat pump module internal components 1 Fan 2 Flame sensor ignition electrodes 3 Limit thermostat 4 Defrosting valve 5 TA outdoor temperature probe 6 Teva evaporator temperature probe 7 Flow temperature probe 8 Components box 9 Circulation pump 1 2 3 4 5 6 7 8 9 ...

Страница 12: ... Safety valve 2 Flowmeter 3 Heat pump module flue gas exhaust 4 Condensate discharge 5 Condensate level sensor 6 Water outlet connection Ø 3 4 M 7 Water inlet connection Ø 3 4 M 8 Return temperature probe 9 120 C flue gas thermostat 10 PT1000 flue exhaust temperature probe 1 2 3 4 5 6 7 8 9 10 ...

Страница 13: ...and maintenance manual K18 Simplygas 13 1 Figure 1 6 RH front view heat pump module internal components 1 Gas valve 2 Combustion blower 3 Ignition transformer 4 Oil pump 5 TG generator temperature probe 6 Electrical panel 7 TGV probe 1 2 4 5 6 7 3 ...

Страница 14: ...W L1 N PM PE IGNTR IGN FLS 0 10V THMC THRC TA pos Y pos Y A 2 0 10 V SCH TK N L1 TK FAN L N N L VD DISPLAY BOARD REED SENSOR PMP POWER SUPPLY 230V 50Hz L N RESET int W Pump ext W Pump y g CWS 1 4 IF50 FM F2 F1 M1 M2 LS IF20 T T 4 4 1 1 6 18 1 1 3 1 4 1 6 7 1 1 11 1 1 1 1 6 10 1 B 1 11 A GND PWM 0 10V THR THM T GEN T EVA T AMB TGV T2 T1 TF 8 red 2 brown 9 black 7 blue IN GND PWR 10VDC T ERR 0 10V G...

Страница 15: ...5 GRAY 0 10V THMC THRC TA pos Y pos Y A 2 0 10 V SCH 10VDC TK N L1 T ERR TK 0 10V GND H BUS FAN L N N L VD DISPLAY BOARD REED SENSOR PMP POWER SUPPLY 230V 50Hz L N RESET INT W Pump EXT W Pump Y G CWS 1 4 IF50 FM F2 F1 M1 M2 LS 1 3 T T 4 4 1 1 6 18 1 1 3 1 4 1 6 7 1 1 11 1 1 1 1 6 10 1 B 1 11 A GND 7 1 PWM 0 10V THR THM T GEN T EVA T AMB TGV T2 T1 TF 8 RED 2 BROWN 9 BLACK 7 BLUE IN GND PWR 9 BLACK ...

Страница 16: ...ch circuit and optionally influence by the installed room unit s Buffer tank DHW production control in dedicated prepara tion tank Data display and parameters setting Hourly programming on a weekly basis on two temperature levels comfort reduced Antifreeze protection function Absence periods programming Diagnostics Errors reset For further details and diagrams see OQLT021 controller manual 1 7 1 2...

Страница 17: ... production on the timer itself using two different setpoints comfort reduced comfort antifreeze or comfort anti le gionella or providing for the complete deactivation of the DHW service outside the set time slots Through the use of a simple switch instead it will not be pos sible to schedule the DHW service but two different setpoints or alternatively the activation and deactivation of the DHW pr...

Страница 18: ...t is possible to reduce gas pipe diameter to 3 8 ensuring enough gas pressure to the appliance considering pressure losses of entire gas supply pipe 7 Dimensions including flue gas discharge 8 Sound pressure values in free field with directionality factor 2 obtained from the sound power value in compliance with standard EN ISO 9614 Sound power Lw 65 dB A at maximum ventilation 62 dB A at minimum v...

Страница 19: ...lation The aerothermal appliance requires a large space venti lated and free from obstacles to enable smooth flow of air to the finned coil and free air extraction from the fan outlet with no air recirculation Incorrect ventilation may affect efficiency and cause damage to the appliance The manufacturer shall not be liable for any incorrect choices of the place and setting of installation Limiting...

Страница 20: ...igure 2 4 p 20 Figure 2 3 K18 Simplygas minimum clearance distances A 600 mm B 600 mm C 600 mm D 1500 mm This distance can be reduced to 300 mm if the flue gas discharge is vertical Figure 2 4 Minimum open area above the units A 2 5 m min 2 5 MOUNTING BASE 2 5 1 Mounting base constructive features Place the appliance on a level flat surface made of fireproof material and able to withstand its weig...

Страница 21: ... Simplygas C1 appli ance for space heating only or as in Figure 3 2 p 23 for the K18 Simplygas C1 appliance for heating and DHW production with basic DHW functionality See Figure 3 3 p 24 for the K18 Simplygas C1 appliance for heating DHW production with advanced DHW functionality and management of one or more heating circuits With regard to the heating distribution circuits the solutions de scrib...

Страница 22: ...eating circuit see Paragraph 3 2 4 4 p 24 10 Outdoor temperature probe available as OSND007 optional 11 Auxiliary boiler optional 12 Check valve to be installed only in the presence of an auxiliary boiler A Gas connection B Ambient chronothermostat available as OCDS007 optional C Auxiliary boiler group optional D Optional domestic hot water connection E Optional domestic cold water connection F Bu...

Страница 23: ...e probe GHP available as OSND004 optional 13 Outdoor temperature probe available as OSND007 optional 14 Auxiliary boiler optional 15 Check valve to be installed only in the presence of an auxiliary boiler 16 GHP immersion temperature probe only in the presence of an auxiliary boiler available as OSND004 optional A Gas connection B Ambient chronothermostat available as OCDS007 optional C Auxiliary ...

Страница 24: ...mersion temperature probe only in the presence of an auxiliary boiler available as OSND004 optional 18 Advanced room unit optional supplied as per standard with OQLT021 to be placed preferably in a heated room A Gas connection B Auxiliary boiler group optional C Buffer tank group min 100 l optional D Heating distribution circuit to be carried out as described in Paragraph 3 2 4 4 p 24 The componen...

Страница 25: ...A Heating distribution with up to two heating circuits one of which is optionally mixed and one not mixed system with primary and secondary water circuits Figure 3 6 Heating distribution 03 system controller with a mixed heating circuit and a direct one 1 GHP immersion temperature probe standard 2 Decoupling of primary secondary circuits large cross section pipe with T connections or a hydraulic s...

Страница 26: ...nd then the com ponents listed below are added only if DHW production is re quired to the components required for the space heating circuit Paragraph 3 3 3 p 26 1 DHW buffer tank 200 or 300 liter 3 or 4 sqm coil available as optional OSRB012 or OSRB004 1 3 way diverting valve available as OVLV007 optional 1 temperature probe in the DHW buffer tank available as OSND004 optional It is recommended in...

Страница 27: ...sidential and in dustrial heating systems Table 3 2 Chemical and physical parameters of water Chemical and physical parameters of water in heating cooling systems Parameter Measurement unit Required value pH 7 1 Chlorides mg l 125 2 Total hardness CaCO3 f 15 d 8 4 Iron mg kg 0 5 3 Copper mg kg 0 1 3 Aluminium mg l 1 Langelier s index 0 0 4 Harmful substances Free chlorine mg l 0 2 3 Fluorides mg l...

Страница 28: ...S3B P HU 25 30 30 II2E3P LU 20 50 II2L3B P NL 25 50 50 II2E3B P PL 20 37 37 I2E S BE 20 25 I3P BE 37 IS 30 I2H LV 20 I3B P MT 30 30 I3B 30 3 10 5 Vertical pipes and condensate Vertical gas pipes must be fitted with siphon and discharge of the condensate that may form inside the pipe If necessary insulate the piping 3 10 6 LPG pressure reducers With LPG the following must be installed A first stage...

Страница 29: ...phon needs to be installed on the pipe The connection of the discharge to the sewerage system must be made at atmospheric pressure i e by dripping into a siphoned container connected to the sewerage system 3 12 2 Flue gas condensate discharge manifold To make the condensate drain manifolds Size the ducts for maximum capacity maximum condensa tion and defrosting water flow rate Table 1 2 p 17 Use p...

Страница 30: ...see Paragraph 4 4 p 31 2 Modbus connection to RS485 port for optional monitoring 3 GHP or EXT T temperature probe connection see Paragraph 4 8 p 34 4 GHP or EXT T temperature probe connection see Paragraph 4 8 p 34 5 GHP temperature sensor connection see Paragraph 4 8 p 34 6 Connections of optional auxiliary boiler see Paragraph 4 9 p 35 7 Possible connection of three way diverter valve for DHW se...

Страница 31: ...o the OQLT021 controller Installation manual for the actual wiring instructions 4 4 1 2 OCDS007 ambient chronothermostat optional See also Paragraph 1 7 1 2 p 16 How to connect the OCDS007 ambient chronother mostat Connection of OCDS007 ambient chronothermostat is made on the wiring terminal block located in the electri cal panel inside the appliance 1 Access the electrical board of the appliance ...

Страница 32: ...onductor wires to terminals COM and DHW respectively common and DHW request selector of the internal terminal block Figure 4 6 p 32 3 Use shielded cable 2x0 75 mm connecting the shield to one of the ground terminals provided on the appliance electrical panel 4 The connection cable must be kept separate from mains voltage cables The signal is SELV Safety Extra Low Voltage The volt age free contact ...

Страница 33: ... the generic diverter valve Connection of the diverter valve is made on the wiring terminal block located in the electrical panel inside the appliance 1 Access the electrical board of the appliance according to the Procedure 4 2 p 30 2 Connect the control contacts of the valve through three conductor wires to the terminals 230V DHW VALVE of the internal terminal block Figure 4 8 p 33 The DHW diver...

Страница 34: ... is used In the presence of this controller follow the connection instructions of the temperature probes provided in the relevant installation manual It is possible to connect up to three temperature probes AUX PROBE 1 and or AUX PROBE 2 and or AUX PROBE 3 to control specific functions described in Paragraph 5 3 5 p 40 Use shielded cable for connecting temperature probes 2x0 5 mm up to 40 m 2x0 75...

Страница 35: ... K18 appliance for heating service only A Unit terminal block detail GHP Water delivery temperature probe NTC 10k Beta 3977 supplied as standard with K18 Simplygas unit EXT T Air temperature probe NTC 10k Beta 3977 optional OSND007 AUX PROBE 2 T2 T2 A EXT T AUX PROBE 3 T3 T3 AUX PROBE 1 T1 T1 GHP Figure 4 12 Connection of temperature probes to K18 appliance with DHWdirectlycontrolledbytheappliance...

Страница 36: ...n optional 0 10 V output tem perature setpoint and optional alarm signal for the auxil iary boiler on the unit terminal block A K18 Simplygas unit terminal block detail B Auxiliary boiler C ON OFF contact request 2x0 75 mm2 cable D 0 10V input for setpoint acquisition E Alarm signalling output mandatory SELV voltage free contact optional shielded cable 2x0 75 mm ON OFF AUX BOILER 10 0 AL 0 AL AUX ...

Страница 37: ...sage UAIt wait which indicates that the machine is not yet ready for the reading 9 Once an approximate time ranging between 5 and 8 min utes elapses the flashing message becomes _GO_ to indi cate that the combustion control can be implemented 10 Ensure the CO2 value is between values indicated in column Minimal heat input of Table 5 1 p 38 Otherwise set CO2 percentage reading by acting on the offs...

Страница 38: ...on Err The appliance switched off due to a fault Warning or Error Deactivate the function by pressing the key for 5 seconds and then intervene according to the operating codes shown on the display while referring to Section 8 1 p 51 Once the problem is resolved reactivate the function Cod x x 0 1 The appliance is temporarily running a special cycle that requires specific control of the power that ...

Страница 39: ...tion pump in DHW mode from 0 V to 10 V 10 178 Space heating mode water deltaT setpoint from 1 K to 20 K 10 181 Power modulation enable for space heating 0 not active 1 active 1 182 Glycol in heating water loop 0 absent 1 present 0 183 Modulation of circulation pump in DHW mode activated 0 not active 1 active 1 184 DHW mode water deltaT setpoint from 1 K to 20 K 10 185 3 Outdoor temperature thresho...

Страница 40: ...nd 3 7 p 26 If has been added in the primary water circuit glycol set pa rameter 182 to 1 additionally the antifreeze function can be disabled by setting parameter 163 to 0 If glycol has not been added set parameter 182 to 0 and make sure that parameter 163 is set to 1 also keep the unit connected to power supply and to gas network in order to allow antifreeze function activation 5 3 3 Operating m...

Страница 41: ...nd to 10 V output 3 If the 0 10 V signal is also used as request signal second case described in Paragraph 4 9 p 35 parameter 54 must also be set to the temperature that corresponds to the minimum switch on level of the auxiliary boiler if this value can be varied from the configuration of the parameters of the auxiliary boiler it must be set to the lowest possible value and then set parameter 54 ...

Страница 42: ...certain replacement criteria of the heat pump for the DHW ser vice similarly to that for the space heating service The criteria used are those described in points 1 and 3 for the space heating service and therefore replacement at low out door temperature depending on parameter 217 and replace ment on limit thermostating condition depending on parame ter 187 On the other hand no criterion of replac...

Страница 43: ...7 More precisely between the value parameter 237 parameter 235 and the value parameter 237 The only way to deactivate the DHW request is to manually change the value of parameter 237 to a lower value or to the value 0 if you want to deactivate the request completely 5 4 2 2 Fixed comfort setpoint with the possibility to deactivate the DHW request via external contact comfort OFF COM DHW contact co...

Страница 44: ...s the increase in the delivery water tem perature setpoint compared to the setpoint in the DHW buffer tank expressed by parameters 227 237 which is necessary to achieve adequate heat exchange in the DHW buffer tank For example if parameter 227 is set to 55 C and parameter 236 is set to 5 K the setpoint value for the delivery water temper ature in the event of a DHW request with COM DHW contact clo...

Страница 45: ...4 3 Events reporting When they occur the display of the GHP10 GHP11 board shows three types of events recognizable by the first character I for information u for warning E for errors The other three red digits represent a numeric event code Info events are shown steadily while warnings and errors blink The display rotates after the values of the outlet water tempera ture the inlet and the differen...

Страница 46: ...ntact from 10 C to 80 C 55 228 1 4 Heating curve slope from 10 to 400 75 229 1 4 Heating curve offset from 5 K to 5 K 0 230 1 4 Room setpoint with heating curve from 0 C to 40 C 20 235 1 5 Differential for DHW buffer tank charge start from 1 K to 10 K 5 237 1 5 DHW setpoint with open COM DHW contact from 0 1 C to 80 0 C 0 0 DHW charge disabled with COM DHW contact open 0 0 1 If the unit is connect...

Страница 47: ...ct stable internal ambient temper ature when the outside temperature changes but the internal temperature does not match the setpoint one the following cas es may occur Internal ambient temperature is always higher than the set point in this case one must act on the Offset parameter of the heating curve setting a negative figure equal to the in ternal temperature deviation from the setpoint for in...

Страница 48: ... a temporary and provisional fault For a fault or breakdown alert the maintenance technician or TAC 6 7 3 Reset There are three options for resetting a fault 1 If the appliance is connected to the OQLT021 system control ler you may act through the control device as described in the relevant manual 2 If a remote reset button has been provided Paragraph 4 7 p 34 act directly on the button 3 Act on u...

Страница 49: ...vity Should you foresee to leave the appliance inactive for a long period of time disconnect it from the electrical and gas mains These operations must be performed by qualified personnel How to deactivate the appliance for long periods of time 1 Switch the appliance off Paragraph 6 2 p 44 2 Only when the appliance is completely off power it off with the main switch disconnector switch Detail GS i...

Страница 50: ...To exit the menu 2 and return to the main screen 1 Press button until the rightmost digit shows letter E Exit then press button 2 Press again button until the leftmost shows letter E Exit then press button Limit the time you use this function to the minimum ef fectively needed The system cancels the fan stop auto matically after 15 minutes ...

Страница 51: ...rip Contact the TAC 407 High generator temperature Reset is automatic when the triggering condi tion ceases The reset may be done following one of procedures shown in Para graph 6 7 3 p 48 If the code persists shows up again or in case of doubt contact the TAC 408 Flame controller error NA Contact the TAC 410 Low hot water flow Reset is automatic when the triggering condi tion ceases Check and cle...

Страница 52: ...ies to resolve the fault once if not successful warning 461 is generated NA 441 Parasitic flame lockout NA The reset may be done following one of procedures shown in Para graph 6 7 3 p 48 If the code persists shows up again or in case of doubt contact the TAC 442 Flame loss Reset occurs automatically 10 seconds after the code is generated NA 443 Flame controller communica tion error Reset is autom...

Страница 53: ...ct the TAC 482 Invalid bank 2 parameters Reset is automatic when the triggering condi tion ceases Contact the TAC 485 Invalid module type configura tion parameters NA Contact the TAC 486 ROM board fault NA Contact the TAC 487 pRAM board fault NA Contact the TAC 488 xRAM board fault NA Contact the TAC 489 Registers board fault NA Contact the TAC 490 Outdoor temperature probe fault NA The reset may ...

Страница 54: ...Blinking red light Pump out of order Pump blocked Pump does not restart autonomously Replace the pump OFF No power supply No voltage on electronics The unit has never received a service request since it has been powered electrically or more than one hour has elapsed since the last service request was completed in these cases the control electronics of the appliance do not power the pump It is a no...

Страница 55: ...mode P TO 0 015 kW Standby mode P SB 0 005 kW Crankcase heater mode P CK kW Other items Capacity control For air to water heat pumps Rated air flow rate outdoors __ 4000 m h Sound power level indoors outdoors L WA 65 dB For water or brine to water heat pumps Rated brine or water flow rate outdoor heat exchanger __ m h Contact details Robur SPA Via Parigi 4 6 I 24040 Zingonia BG Additional informat...

Страница 56: ...111 F 39 035 884165 www robur it robur robur it 22 07 2020 19 MCL SVI 050 Code D LBR687 Revision H 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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