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I nst allation  manual

2 5

7.3 Concentric system

7.3.1 General

The appliance is connected to a flue gas discharge / combustion air supply system delivered by DRU, hereafter referred to 
as the concentric system. DRU has different concentric systems in its range.
In the case of a concentric system, the inner tube is used as flue gas discharge. The combustion air is supplied by the 
outer tube. As a result, the latter always has a relatively low temperature. For the maximum temperature of the outer 
tube, see the technical data in table 4-1. The concentric system has been tested in combination with the appliance. Other 
concentric systems are not permitted.
 
See the table below for the different concentric systems of DRU and their application:

System

DRU LAS AG-I 150/100

DRU LAS ES-I 150/100

DRU LAS ES-I 200/130

DRU LAS ES-E 200/150/100

DRU PV-I 100/60

Permitted for 

this appliance.

Yes

Yes

Yes

Yes

Yes

Remarks

Alu-galva tubes for use inside the building*.
Diameter Ø150/100 mm.
Cannot be combined with the SS systems.
SS tubes for use inside the building*.
Diameter Ø150/100 mm.
Using an SS adapter, it is possible to construct further with the
insulated LAS ES-E 200/150/100 system.
SS tubes for use inside the building*.
Diameter Ø 200/130.
Using an SS adapter, if permitted, it is possible to construct further with 
LAS-ES-I 150/100.
Insulated SS tubes.
Discharge diameter Ø150/100.
External diameter Ø 200 mm.
Intended for use inside or outside building for placement in, for example, 
timber frame construction, execute with 0 mm distance along combustible 
material etc. It is not possible to continue building with an SS adapter with 
LAS ES-I 150/100.
Optional discharge system with fan for discharge up to approx. 60 metres 
long.

* With the exception of the components intended for that purpose, such as roof and wall terminals.

The diameter of the concentric system appliance connection can be found in table 4-1. By means of natural draft, the flue 
gases are discharged to the outside, this can be achieved by means of a wall terminal (C11) or a roof terminal (C31). If 
necessary, an existing chimney can be used (C91, see section 7.3.5).
In addition, if combined with PowerVent® (C12, C32), it is possible in many cases to discharge the flue gases with a 
smaller diameter (DRU PV-I 100/60).

1

Only use the concentric system supplied by DRU This system has been tested in combination with the appliance. DRU 
cannot guarantee a proper and safe operation of other systems and does not accept any responsibility or liability for this.

1

Use a chimney kit for making a connection to the chimney; this can be supplied by DRU.

1

For terminals, observe the information in table 7-2.

Table 7-1: Concentric systems and their application

Summary of Contents for Maestro 60/2 Tall RCH

Page 1: ...Maestro 60 2 Tall RCH Maestro 60 3 Tall RCH G20 G25 G25 3 Natural gas G30 Butane and G31 Propane English Store this document in a safe place 959 131 01 EN DRU 988552 EN US 1022 2 Scan this QR Code fo...

Page 2: ...allation options 14 7 2 1 Platform combined with lower decorative strip 14 7 2 2 Platform connecting to the glass 14 7 2 3 Placing the appliance control unit under the platform 18 7 2 4 Back wall conn...

Page 3: ...4 2 DRU Fire App User 55 9 4 3 DRU Fire App Service 55 9 5 Wired home automation system 56 10 Final inspection 58 10 1 Gas tightness 58 10 2 Gas pressure line pressure 58 10 3 Ignition main burner 58...

Page 4: ...rements The chimney breast complies with the imposed fire safety requirements see section 7 4 The chimney breast complies with the minimum dimensions and has been provided with sufficient ventilation...

Page 5: ...s to indicate important information 1 Work to be performed 2 Tips and additional information 3 Necessary instructions to prevent problems that might occur during installation and or use 3 Necessary in...

Page 6: ...1 50 26 5 8 4 1x 1 10 1x 0 90 1x 1 05 A 1 94 6 91 8 0 0236 0 0125 0 0026 94 A Type of heat output room temperature control Single stage heat output no room temperature control Two or more manual stage...

Page 7: ...scribed Leave space around the ionisation pin and spark electrode and never place glow material around these pins Place a gas tap in accordance with applicable regulations Make sure there is no dirt i...

Page 8: ...nd the gas pressure used at the location 6 2 1 Gas type conversion In order to convert this appliance to a different type of gas please contact DRU s service department and ask for the possibilities T...

Page 9: ...appliance The gas hose must be placed as low as possible in the chimney breast Place it as far away from the burner as possible The input of the appliance control unit points towards the appliance Due...

Page 10: ...to the main burner and valve second burner C Valve second burner switches the gas supply to the second burner if applicable D Controller ESYS controls the ignition procedure and checks for a safe oper...

Page 11: ...on range of the appliance see fig 7 12 Place the concentric system in such a way that it is impossible for a fire hazard to occur see section 7 3 Do not cover the appliance and or do not wrap it in an...

Page 12: ...0 600 20 1123 156 30 495 795 148 350 399 130 200 690 750 A A 200 130 399 30 655 773 A A 50 550 585 20 923 156 30 495 595 148 350 50 750 585 20 1123 156 30 495 795 148 350 399 30 655 773 130 200 A A Ma...

Page 13: ...and height of the appliance see fig 7 2 and the control hatch see fig 7 14 1 Attach the suspension bracket to the wall using the supplied key bolts see fig 7 3 3 Attach the appliance to a vertical wal...

Page 14: ...7 2 2 Platform connecting to the glass see fig 7 4 B and D and 7 5 B and D 1 Create a recess in the platform in which the appliance will be placed If a false wall is used the recess will be less deep...

Page 15: ...Installation manual 15 A D B C 38C 2500 7 4...

Page 16: ...Installation manual 16 710 610 362 462 815 665 505 710 505 815 665 507 615 407 362 610 362 615 362 710 405 38C 2618 C 665 405 B D A 38C 2618 7 5...

Page 17: ...Installation manual 17 1 3 4 2 38C 2504 tooltip tooltip 7 6...

Page 18: ...7 1 Mount the attachment bracket of the protective cabinet both against the back wall and bottom side of the platform using suitable fastening materials Step 1 1 Disassemble the appliance control uni...

Page 19: ...Installation manual 19 38C 2793 1 2 3 4 5 6 7 7...

Page 20: ...l thickness 20 mm and 30 mm indicators have been applied The cover plate is no longer required and can be removed Re tighten the self tapping screws see fig 7 9 1 Maintain a 5 mm distance between the...

Page 21: ...Installation manual 21 1 3 2 4 38C 2619 586 5mm 1 2 38C 2503 7 8 7 9...

Page 22: ...ion the mantle iron 3 Do not allow the mantle iron to rest on the construction frame Maintain a minimum space of 2 mm between the mantle iron and construction frame 1 Attach the threaded rod s in the...

Page 23: ...Installation manual 23 5 7 8 6 38C 2507 1 60 1 3 2 4 2 mm 38C 2506 1 7 10 7 11...

Page 24: ...Installation manual 24...

Page 25: ...pter if permitted it is possible to construct further with LAS ES I 150 100 Insulated SS tubes Discharge diameter 150 100 External diameter 200 mm Intended for use inside or outside building for place...

Page 26: ...time these are not suitable The concentric system is constructed from the flue spigot of the appliance If due to constructional circumstances the concentric system is placed first it is possible to c...

Page 27: ...ndicates how the permissibility is determined of a concentric system when using a roof terminal 1 Count the number of 45 and 90 bends required 15 and 30 bends are also allowed these are not counted 1...

Page 28: ...DRU PowerVent system DRU PV I 100 60 see PowerVent installation manual Table 7 4 Conditions for setting the appliance when using a roof terminal G20 G25 G25 3 G30 G31 Situation A B C D Air inlet guide...

Page 29: ...Installation manual 29...

Page 30: ...1 Adjust the appliance correctly with for instance a restrictor slide and an air inlet guide see section 8 2 The rosette of the wall terminal is too small to seal the opening in case of passage throug...

Page 31: ...ctory setting Air inlet guide 1 mounted air inlet guide 2 and restrictor slide are supplied separately There are many more possibilities in combination with the DRU PowerVent system DRU PV I 100 60 se...

Page 32: ...Installation manual 32...

Page 33: ...exible stainless steel pipe must be observed at all times 3 If the appliance is equipped with explosion hatches see table 4 1 the minimum chimney breast dimensions as stated in section 7 1 must be com...

Page 34: ...tall these after the carrying out any structural work If this is not possible protect them during this work Avoid the use of painter s tape If this is not possible use good quality painter s tape and...

Page 35: ...nal ventilation hole V in must be installed A ventilation inlet of 80 cm2 must be present on both sides to ensure sufficient cooling No additional incoming ventilation hole is required if the applianc...

Page 36: ...er frame can be built in with bricks In case of different materials the inner frame can be glued or fastened with four countersunk screws for instance 1 Attach the outer frame with door 3 to the inner...

Page 37: ...Installation manual 37 1 2 3 4 5 6 7 8 9 12 11 10 38C 2511 2 7 15...

Page 38: ...e locking hooks at the top left and right upwards to unlock the glass pane The locking hooks are lifted by pressing on the cams situated in the profile above the glass pane 1 1 Keep the cams depressed...

Page 39: ...e glass pane see fig 8 2 1 Close the glass pane by pushing the profile at the top of the glass pane towards the appliance 1 1 The glass pane will close automatically 3 Avoid remove fingerprints on the...

Page 40: ...inwards so that they cannot obstruct the work but ensure that they can be reached later 1 Grasp the glass pane on both sides at the bottom and hold the glass pane at the angle of the open position 1...

Page 41: ...osition This is dead centre in front of the appliance with the profile at the base of the glass pane above the slot 1 Allow the glass pane to drop into the slot and press it firmly into position 1 Pla...

Page 42: ...1 1 Install the restrictor slide 2 The restrictor slide falls over part of the flue gas pipe hole do not yet tighten the self tapping screws 3 When fixing the arrow on the restrictor slide must point...

Page 43: ...f tapping screws from the rear vermiculite plate 1 and remove them 1 Remove air inlet guide 1 at the bottom rear of the appliance 2 1 Install air inlet guide 2 and fasten it with the self tapping scre...

Page 44: ...l become filthy more quickly as a result of soot The flame picture will be affected 8 3 1 Installing the wood set The wood set consists of a number of logs see fig 8 9 vermiculite see fig 8 10 chips s...

Page 45: ...overed with vermiculite in order to prevent reduction of the burner s life span 1 If desired glow material may be installed Pull the glow material into loose tufts and spread it over the sections on t...

Page 46: ...d the chips over the remaining sections keep the sections marked in red free 1 Identify logs A to G see fig 8 9 2 Use the burn marks on the logs for identification 1 Place log A on the positioning lug...

Page 47: ...Installation manual 47 38P 0820 2 8 16...

Page 48: ...Installation manual 48 38P 0815 2 Eco Glow 38P 0814 2 Eco Glow 8 17 8 18...

Page 49: ...Installation manual 49 A C 38P 0816 2 B 8 19...

Page 50: ...Installation manual 50 D E 38P 0817 2 1 cm 8 20...

Page 51: ...Installation manual 51 38P 0819 0 Eco Glow F 38P 0818 0 G Eco Glow 8 21 8 22...

Page 52: ...Installation manual 52...

Page 53: ...is a service menu in the DRU Fire App available for iOS and Android in which data of the appliance can be read see section 9 5 3 3 Never ignite the appliance until it is fully installed in relation to...

Page 54: ...he ignition cycle is interrupted and the appliance will enter into a failure condition When ionization is detected the main burner will switch to full capacity In case of an appliance with a switching...

Page 55: ...om the appliance control unit and placing it back again 2 After briefly making the appliance free from voltage it is possible to couple the remote control with the appliance for 5 minutes 1 Simultaneo...

Page 56: ...ows when connecting the home automation system to the receiver 1 Connect the 0 10VDC signal to connection D to which a black and yellow wire are connected see fig 9 2 D 3 The yellow wire is the pole t...

Page 57: ...Installation manual 57...

Page 58: ...nition process Go to step 11 if the burner continues to burn If the main burner does not ignite 3 Reset the system by means of the remote control or DRU Fire App 4 Repeat the ignition procedure until...

Page 59: ...te smoothly across the entire length of the burner s and continue to burn If the appliance does not ignite after three failed attempts it will enter into a hard lock out for 30 minutes in order to avo...

Page 60: ...he manuals to the user all manuals should be stored near the appliance 1 Important aspects for the benefit of the user s safety that the user must be familiarised with Opening and closing the control...

Page 61: ...ich pit corrosion and or system leakage could occur 1 Clean the glass pane s if necessary 3 Only clean a glass pane once it has reached room temperature Never use the appliance in case of a broken and...

Page 62: ...t 24 hour check control only F13 Gas has fallen away Gas control defective Remedy Properly connect the communication cable Replace communication cable Replace LED unit Replace LED driver Improve venti...

Page 63: ...ntial pressure sensor defective Control signal cable defective Defect and or leak in the concentric system Controller defective Controller defective Controller is in hard lockout Transmitter is out of...

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Page 68: ...DRU Verwarming B V The Netherlands Postbus 1021 NL 6920 BA Duiven Ratio 8 NL 6921 RW Duiven Installation manual...

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