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24                                                                                                        

Installation, Operation and Maintenance Manual - Ed.07/2005 

EVOLUZIONE series natural gas/LPG heaters

3.3.9  WIRING DIAGRAMS FOR THE INSTALLATION OF SEVERAL HEATERS 

ROBUR has control units for the control and management of several heaters (see “List of accessories” on 
page 27). If these controls are not used, follow the diagrams below. 

 

In these conditions, power and ventilation modulation will not occur. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 23 

– WIRING DIAGRAM FOR OPERATION OF SEVERAL HEATERS WITH A SINGLE TIMER AND SEVERAL THERMOSTATS 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 24 – 

WIRING DIAGRAM FOR OPERATION OF SEVERAL HEATERS WITH A SINGLE TIMER AND A SINGLE AMBIENT THERMOSTAT 
(solution with several relays) 

NOTE 

      HEATER                                        HEATER                                       HEATER

RL1                                         RL2                                         RL3

P 

L    N                                       L    N                                       L    N

Z9                                           Z9                                            Z9

TA                                           TA                                           TA

N 

L 

I 

230 V - 50 Hz 

P   

= PROGRAMMABLE TIMER 

TA  

= AMBIENT THERMOSTAT 

RL1-2-3  = PROGRAMMED  

   CONTROL RELAY 

     HEATER                                        HEATER                                       HEATER

RL1                                        RL2                                         RL3

P 

L    N                                      L    N                                       L    N

Z9                                           Z9                                            Z9

N 

L 

I

230 V - 50 Hz 

P   

= PROGRAMMABLE TIMER 

TA  

= AMBIENT THERMOSTAT 

RL1-2-3  = PROGRAMMED  

   CONTROL RELAY

 

TA

Summary of Contents for E 32

Page 1: ......

Page 2: ......

Page 3: ...STALLATION 18 3 3 5 PROCEDURE FOR CHECKING ADJUSTING CALIBRATION OF THE NOVAMIX VALVE SIT 822 19 3 3 6 GAS CHANGE 21 3 3 7 FUNCTIONAL WIRING DIAGRAM 22 3 3 8 ASSEMBLY WIRING DIAGRAM 23 3 3 9 WIRING DIAGRAMS FOR THE INSTALLATION OF SEVERAL HEATERS 24 3 4 SERVICE 25 3 4 1 POSSIBLE OPERATING ANOMALIES 25 26 3 5 LIST OF ACCESSORIES 27 3 5 1 CONTROL UNITS 27 3 5 2 MOUNTING BRACKETS 28 3 5 3 OTHER ACCES...

Page 4: ...ntee the efficiency and correct operation of the appliance it is essential to have annual maintenance carried out by professionally qualified personnel observing the manufacturer s instructions If the appliance is sold or transferred to a different owner ensure that this manual accompanies the appliance so that so that it may be consulted by the new owner and or installation technician Have profes...

Page 5: ...or from side to side by applying on the inlet grille the optional adjustable fins see List of accessories on page 27 The helicoidal fan starts automatically only when it receives the command from the ventilation thermostat that is only when the exchangers are warm in order to prevent cold air from being introduced into the room Likewise it stops when the exchangers are cold If the heat exchangers ...

Page 6: ...s through the exchangers internally The blower ensures that combustion products are forcibly expelled The differential air gas valve control system for combustion air flow checks that the blower is functioning correctly When the exchangers are hot the fan controlled by the ventilation thermostat comes on The flow of air produced by the fan strikes the exchangers externally and is heated Have the e...

Page 7: ...00 3400 5100 THERMAL HEAD AT I st SPEED 31 2 32 5 29 4 31 0 31 0 AT 2 nd SPEED K 30 2 30 0 29 8 30 7 29 2 NOMINAL GAS CONSUMPTION NATURAL GAS m 3 h 2 75 3 68 3 93 5 11 7 30 15 C 1013 mbar L P G G30 2 05 2 74 2 93 3 81 5 44 L P G G31 kg h 2 01 2 69 2 90 3 74 5 34 REDUCED GAS CONSUMPTION NATURAL GAS m 3 h 2 20 2 94 3 15 4 09 5 84 15 C 1013 mbar L P G G30 1 64 2 19 2 34 3 05 4 35 L P G G31 kg h 1 61 ...

Page 8: ...WER SUPPLY SOCKET B 755 872 990 1225 4 CONNECTION C 418 477 536 5 ON LIGHT D 460 520 520 460 6 PASSTHROUGH HOLE FOR E 197 256 315 432 MANOMETER TUBE Figure 2 DIMENSIONS 835 165 535 400 15 615 220 5 SIDE VIEW 26 777 26 829 130 B 290 A FRONT VIEW 472 238 5 120 80 80 290 1 2 E E TOP VIEW 400 15 155 142 146 441 465 4 3 6 REAR VIEW E 72 597 411 460 C 146 142 3 4 6 REAR VIEW E 32 42 43 52 D 465 411 597 ...

Page 9: ...nt the central control unit keeps the gas valve open 7 If no flame is present the central control unit arrests operation of the appliance and the arrest light illuminates on the reset button 8 If point 7 applies press the reset button 9 If ignition is trouble free set the ambient thermostat index not supplied as standard to the value desired If the appliance is switched on after a long period of d...

Page 10: ...pliance after having removed the protective cap see Figure 3 Replace the protective cap after resetting the thermostat Figure 3 LIMIT THERMOSTAT RESET BUTTON POSITION Activation of the limit thermostat ALWAYS indicates an abnormal condition For this reason reset of the limit thermostat is a task for professionally qualified personnel who will restore operation of the appliance ONLY after identifyi...

Page 11: ...p A has a network of Technical Assistance Centres that can be contacted via the dealer the area representative or by calling ROBUR S p A s Customer Assistance directly on 035 888111 Before calling Customer Assistance make sure that you have the machine documentation to hand and if possible the registration number and model of the product which may be found on the data plate and on the guarantee ca...

Page 12: ...ettable 100 C limit thermostat providing protection against overheating of the heat exchangers differential air gas valve control system for combustion airflow If the air intake or exhaust outlet pipes are obstructed this safety system is activated bringing about the arrest of the appliance Gas electrovalve if a safety device is activated limit thermostat central control unit etc the gas valve is ...

Page 13: ...he moment these doors are opened Do not install Evoluzione series heaters in greenhouses or environments with a high degree of humidity or other such climatic conditions as they have not been designed for this type of use On the basis of the installation plan set up the gas and electricity supply lines as well as the holes for exhaust gas outlet and combustion air intake together with the mounting...

Page 14: ...ure 22 on page 23 We recommend that the thermostat or its sensor is positioned approximately 1 5 m from the floor away from draughts or direct sunlight and other direct heating sources lights warm flows of air from the appliance itself etc and if possible NOT on outside facing walls so as not to give false temperature readings and therefore compromise operation of the plant IN THIS WAY UNDESIRED S...

Page 15: ...n and Maintenance Manual Ed 07 2005 13 EVOLUZIONE series natural gas LPG heaters Figure 5 CLEARANCES Figure 6 EXAMPLES OF INSTALLATION minimum 400 mm 350 mm minimum E32 E42 1 8 m E43 E52 E72 2 5 m maximum 3 5 m min 200 A A ...

Page 16: ...o order rigid pipes coaxial pipes and approved terminals In order to size the pipe system it is necessary to calculate the total pressure drop generated by the system itself The maximum and minimum admissible total pressure drop depend on the model of appliance see Table 2 Table 3 gives the pressure drops for Ø 80 and Ø 100 for the air pipes and coaxial pipes supplied by ROBUR The pressure drops o...

Page 17: ...CALCULATION OF AIR EXHAUST GAS SYSTEM WITH PIPES Ø 80 OR Ø 100 SUPPLIED BY ROBUR ON REQUEST PRESSURE DROP FOR COMPONENTS Ø 80 PRESSURE DROP FOR COMPONENTS Ø 100 PIPE Pa m 90 BEND Pa COAXIAL Pa PIPE Pa m 90 BEND Pa MOD EXH AIR EXH AIR WALL ROOF EXH AIR EXH AIR COAXIAL ROOF Pa E 32 0 70 0 36 1 05 0 54 2 5 4 4 0 26 0 10 0 39 0 15 3 1 E 42 1 20 0 60 1 80 0 90 4 2 12 3 0 40 0 20 0 60 0 30 7 9 E 43 1 39...

Page 18: ...o calculate the pressure drop of the pipe system and verify that the sum is not greater than the admissible pressure drop or alternatively to contact ROBUR s Pre sales service on 035 888111 CALCULATION AN EXAMPLE Let us hypothesise that we are installing an E 43 heater The air exhaust gas system will be created from separate pipes Ø 80 in the following way 20 metres of exhaust gas pipe Ø 80 Four 9...

Page 19: ...HAUST GAS OUTLET AND WALL MOUNTED AIR INTAKE A B A Wall based terminal B Integrated upper mounting bracket with separate wall mounted air intake and exhaust gas outlet A Wall mounted coaxial pipe Ø 150 B 90 bend Ø 80 C Adaptor Ø 80 D Lower mounting bracket E Condensate separator A Roof mounted coaxial exhaust gas outlet B Pipe Ø 80 C Adaptor Ø 80 D Lower mounting bracket A Roof mounted terminal B ...

Page 20: ...m above and intake and outlet of combustion products It is supplied complete with an external dual wind protected terminal Adjustable lower mounting bracket This supports the heater from below and allows it to adjusted by 30 in relation to the wall used for installation it is supplied complete with condensate drain and air exhaust gas pipe connection kit with elements for drawing air exhaust gas s...

Page 21: ...be and the input connector F to the valve as indicated in Figure 17 D Start the heater and select minimum operating power E Check that the difference in pressure read on the differential manometer corresponds to the OFFSET value pressure at the burner pressure at the blower indicated in Table 5 F If the OFFSET value detected is more than 0 1 mbar off of the valued indicated in Table 5 adjust the v...

Page 22: ...UES MODEL E 32 E 42 E 43 E 52 E 72 OFFSET mbar 0 0 0 3 0 0 Table 5 OFFSET VALUES F Valve opening signal input F Offset adjustment screw C Pressure on blower signal input G Blower Gas pipe Gas valve Signal input E T connector Open valve command signal tube Burner pressure intake D Gas intake Differential manometer OFFSET burner pressure minus blower pressure ...

Page 23: ...th the help of a screwdriver for leverage if necessary see Figure 20 E Remove the o ring seal from the nozzle and fit it to the new nozzle For the type of nozzle suitable for the model of heater refer to Table 6 F Insert the new nozzle in its seating Figure 20 G Refit the gas pipe checking that the round seal in the metal nut and the square seal on the valve exit are firmly in place Tighten the nu...

Page 24: ... 4A F M2 Fan thermostat Z1 Summer winter switch optional Z9 Ambient thermostat optional M1 Limit thermostat M4 Flame control equipment L1 Arrest light optional P1 Restart button optional CV Fan condenser 2 pcs for E72 V Fan motor 2 pcs for E72 CR Condenser speed reduction blower Z2 MAX MIN switch optional S Blower motor TR Ignition transformer RP7 Ignition electrode 2 pcs RP8 Flame detection elect...

Page 25: ...Installation Operation and Maintenance Manual Ed 07 2005 23 EVOLUZIONE series natural gas LPG heaters 3 3 8 ASSEMBLY WIRING DIAGRAM Figure 22 ASSEMBLY WIRING DIAGRAM SEE KEY TO Figure 21 ...

Page 26: ...ation will not occur Figure 23 WIRING DIAGRAM FOR OPERATION OF SEVERAL HEATERS WITH A SINGLE TIMER AND SEVERAL THERMOSTATS Figure 24 WIRING DIAGRAM FOR OPERATION OF SEVERAL HEATERS WITH A SINGLE TIMER AND A SINGLE AMBIENT THERMOSTAT solution with several relays NOTE HEATER HEATER HEATER RL1 RL2 RL3 P L N L N L N Z9 Z9 Z9 TA TA TA N L I 230 V 50 Hz P PROGRAMMABLE TIMER TA AMBIENT THERMOSTAT RL1 2 3...

Page 27: ...meter excessive length and or number of bends in the gas piping for the diameter used If the appliance runs on L P G it may happen that after initial switch off of the burner upon switching on again the appliance fails to start In this case it is possible that the reducer has insufficient flow capacity if the indicated pressure is not reached it is possible that the pressure reducer on the tank do...

Page 28: ...s interrupted D The gas valve closes because it or its electrical or pneumatic connections are damaged Case 3 The limit thermostat M1 arrests the burner A The heat exchangers have overheated check operation of the fan the gas pressure and the nozzles B The heat exchangers overheat because of a build up of dirt or obstruction of the air inlet vent Clean the exchangers or free the air inlet vent cle...

Page 29: ... 27 THERMOSTATED CONTROL UNIT INTEGRATED CONTROL UNIT Code O CTR010 daily and or weekly timer programming control of ambient temperature via remote sensor automatic operation with modulation of maximum or reduced power according to temperature set selection of reduced power operation antifreeze function summer winter selection arrest warning light reset button sound signal in the case of incorrect...

Page 30: ...ments for drawing air exhaust gases see Figure 31 UPPER MOUNTING BRACKET WITH INTEGRATED WALL MOUNTED OUTLETS Code O STF000 supplied complete with double external terminal Figure 32 ADJUSTABLE LOWER MOUNTING BRACKET Code O STF006 supplied complete with condensation drain and air exhaust gas pipe connection kit with elements for drawing air exhaust gases Figure 33 TUBULAR MOUNTING BRACKET complete ...

Page 31: ...000 this element allows any condensate that forms on the exhaust gas pipe to be collected and drained It must be used when there is a vertical length of exhaust gas piping of 1 metre or longer and when ROBUR mounting brackets are not used see Figure 36 Figure 35 ADJUSTABLE ALUMINIUM FIN AIR EXHAUST PIPE CONNECTION WITH INTAKE ELEMENT Code O SCR010 consisting of 2 vertical connectors see Figure 37 ...

Page 32: ...s 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 manual without prior notice ROBUR S p A Via Parigi 4 6 24040 Verdellino Zingonia Bergamo Tel 035 888111 Fax 035 884165 INTERNET www ROBUR it e mail ROBUR ROBUR it ...

Page 33: ......

Page 34: ...Codice D LBR345 05 MED SPV 042 28 07 2005 ...

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