System Technical Details - RED practika 28-33 Use And Installation Manual

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3.4.

System technical details

The heat and technical details of the system consisting of pellet boiler and pellet burner using wood pellets:
Parameter
Hot water pellet boiler model
Pellet burner model
Nominal heat output
Operating range (min-max)
Fuel used
Consumption rate (min-max)
Fresh air rate, required for the
effectiveness of the combustion
process and of the boiler
operation
Average wood pellet consumption
rate (the boiler operates in a
normal heating system)
Heating efficiency(min-max)
Excess air ratio
Temperature of combustion gases
at the nominal heat output
Solid fuel residue
Technical specifications and dimensions
PRACTIKA 28-33
USE AND INSTALLATION MANUAL
Measurement unit
kW
kW
 Wood pellets
 Pre-dried cherry stones
 Other dried stones
kg/ora
kg/hour
3
m /h
kg/hour
%

°C
Ashes
Technical dept. - All rights reserved - Reproduction prohibited
Value
PRACTIKA 28 PRACTIKA 33
BURNER 28 BURNER 33
25
7,5-25
1,7-6,0
45-50
39-44
4.1
91-89
1.5-1.7
180-200
The quantity depends on the ash
contents of the raw fuel, as well
as on the operating conditions
Chapter 3
page 12
30
9-30
2,0-7,2
57-64
50-56
4.9
93-89