Combined boiler BURNiT UB 35kW to 90kW

BURNiT

3 331,35 € tax incl.

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Universal boiler for heating of medium and large premises. The universal retort burner allows  burning of different fuel types as coal, wood-pellets and agri-pellets (straw pellets and sunflower pellets). Designed in accordance with Standard EN 303-5.

Made in Europe

Available on order

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Combined boiler BURNiT UB

 

Universal boiler for heating of medium and large premises. The universal retort burner allows  burning of different fuel types as coal, wood-pellets and agri-pellets (straw pellets and sunflower pellets). Designed in accordance with Standard EN 303-5.

Boiler warranty : 2 years

Set includes:

Combined boiler, Universal retort burner and Fuel hopper.

 

Heat output, kW:

35, 60, 90

 

 

Recommended fuels

 

 

Product Features :

  • Built-in control unit. Functions: Automatic combustion control; Controls the operation of central heating pump;  Controls the operation of DHW (domestic hot water) pump.
     
  • Universal retort burner.  Equipped for burning of different fuel types as coal,  wood-pellets and agri-pellets (straw pellets and sunflower   pellets). Two Cast Iron grates for coal and pellets;
     
  • Robust Cast Iron burner body; Long service life and ease of maintenance;
  • Boiler combustion chamber with large heat exchanging surface and low chamber resistance.
     
  • Ribbed chamber surface is equipped with turbolators for longer retention of the  gases into combustion chamber to increase boiler efficiency. Three-pass flue gas flow.
     
  • The water mantle embraces the combustion chamber in full to utilize the emitted heat most efficiently.
     
  • Fuel hopper.  Lateral connection to the boiler. Leveling foot. Convenient hatch for fuel loading.
     
  • Safety devices:
    1) Controller for boiler temperature monitoring and control.
    2)  Pressure relief valve 3 bar;
    3) Safety heat evacuator a tap-water-filled line passes through the upmost part of the boiler body. In case of overheating it is triggered open by a thermostatic valve.
    4) STB thermostat stops fuel supply into the burner when normal temperature in the boiler increases.
    5) Sensor prevents backfiring into the fuel hopper.
    6) Fuse 6,3 А.

 

 

 

Optional:

Safety valve for temperature (c) connected to water tank (a) by water delivery hose (b). This prevents backfiring into the fuel hopper.

 

 

 

 

 

 

Combined boiler BURNiT UB

1. Combined boiler
2. Fuel hopper
3. Safety heat evacuator
4. Turbulators
5. Three-pass flue gas flow
6. Ceramic plate to improve the combustion
7. Universal retort burner
8.  Cast Iron grate for coal
9.  Cast Iron grate for wood-pellets / agri-pellets

 

Option:
( a ) Water tank (Extinguisher)
( b ) Water delivery hose
( c ) Temperature safety valve

 

 

 

 

 

 

Characteristics

Chart combined boiler UB

 

 

  UB 35kWUB 60kWUB 90kW
Heat outputkW356090
Overall dimensions Height Hmm129014421442
Overall dimensions Width Lmm134714711590
Overall dimensions Depth Dmm976,61105,51105,5
Water mantle volumeL114137152
Combustion chamber volumeL88128170
Recommended chimney draftPa/mbar23/0,2338/0,3856/0,56
Power supplyV/Hz230 AC / 50 Hz  
Power consumption - Operating modeW20-7520-16020-160
Recommended fuel : cast iron grate for coal coal, ø 5-25 mm  
Recommended fuel :cast iron grate for pellets wood-pellets, ø 6÷8 mm EN 14961-2:2011  
Recommended fuel :alternatively agri-pellets: straw / sunflower ø 6÷8 mm  
Exhaust gas temperature (operation mode)°C< 250 ÷ 280  
Operating temperature range°C55-85  
Operating pressurebar333
Weightkg475594670
Capacity of fuel hopperkg215305305
Cold water inletA, mmR¼" / 212R1½" / 232R1½" / 232
Hot water outletB, mmR¼" / 1245R¼" / 1442R¼" / 1442
Safety heat evacuator inlet/outletE, mmR½" / 1052R½" / 1222R½" / 1222
Sensor of safety valve sleeveK, mmG½" / 1055G½" / 1225G½" / 1225
FlueF, mmø 180/930ø 200/1065ø 200/1065
FlueJ, mm350350410
Flue cleaning openingO, mm150/70150/70150/70
DrainY, mmG½"/212G1"/232G1"/232
Air delivery hose, connected to fuel hopperPYes  
ControllerUYes  
Extinguishing water tank( a )Option  
Water delivery hose( b )Option  
Safety valve for temperature( c )Option  

For product measurements, they should be read as follows:

Cold water inletA, mmR1¼ "/ 450
Y, mmmG½ "/ 232

A is shown in the previous diagram. "R1¼" and "G½" are the measure in inches of the opening. "R" is male and "G" is female. The measurements in inches indicate the distance between the floor and the opening.

 

 

 

 

Recommended clearances between the boiler and walls

 

Combined boiler UB

 

 

 

Design of retort burner UB

 

 

 

 

 

 

Combined boiler UB

1 - Burner;
2 - Auger mechanism;
3 - Air chamber;
4 - Cast-iron body;
5 - Cast-iron detail for coal;
6 - Cast-iron grate;
7 - Fan;
8 - Flange for fuel hopper;
9 - Gearmotor for the auger
mechanism;
10 - Support;
11 - Cast-iron detail for pellets;
12 - Setscrews

 

 

 

 

 

 

 

 

Interdependence between boiler rated power and flue dimensions

 

Combined boiler UB

 

 

 

 

 

 

 

Connecting the safety heat exchanger

Combined boiler UB

 

 

1. Water supply network
(pressure 2-10 bar)
2. Drainage (sewerage)
3. Boiler UB
4. Safety heat exchanger inlet
5. BVTS valve sensor
6. Safety heat exchanger outlet

 

 

 

 

 

 

 

 

Wiring diagram. Luster terminal connection to the peripheral devices and the controller

Combined boiler UB

 

 

 

 

 

 

 

 

 

 

Connection of boiler UB to three-way valve

 

Combined boiler UB

 

 

 

 

 

 

 

 

 

Connection of boiler UB to P type buffer tank and three-way valve

Combined boiler UB

 

 

 

 

 

 

 

 

 

 

 

 

Connection of boiler UB to combi tank KSC2, flat plate solar collector PK and three-way valve

Combined boiler UB

 

 

 

 

 

 

 

 

 

 

Connection of boiler UB to solar tank SON, buffer thank P, flat plate solar collector PK and three-way valve

Combined boiler UB

 

Data sheets and documentation