Unigas K990A, Installation Manual

Page: 6 / 112

6
Burner model identification
Burners are identified by burner type and model. Burner model identification is described as follows.
Fuel
Fuel
The burner technical specifications, described in this manual, refer to natural gas (calorific net value H
i
= 9.45 kWh/Stm
3
, density ρ =
0.717 Kg/Stm
3
). For different fuel such as biogas, multiply the values of flow and pressure by th corrective factors shown in the table
below.
For example, to obtain the flow and pressure values for the biogas:
Type K750A Model M- MD. SR. * A. 1. 80. EI.
(1) (2) (3) (4) (5) (6) (7) (8) (9)
1 BURNER TYPE K750A, K890A, K990A
2 FUEL
M - Natural gas
L - LPG
3 OPERATION (Available versions)
PR - Progressive
MD - Fully modulatingFully modulating
4 BLAST TUBE SR = Standard blast tube + ABS polymer (silenced) air intake
5 DESTINATION COUNTRY
* - see data plate
6 BURNER VERSION
A - Standard
Y - Special
7 EQUIPMENT
1 = 2 gas gas proving system
8 = 2 gas gas proving maximum gas pressure switch
8 GAS CONNECTION
65 = DN65 80 = DN80 100 = DN100 125 = DN125
9 MICRO-PROCESSOR CONTROL
ES = with no O
2
trim control, with no VSD control
EO = with O
2
trim control, with no VSD control
EI = with no O
2
trim control, with VSD control
EK = with O
2
trim control, with VSD control
DANGER! The burner must be used only with the fuel specified in the burner data
plate.
Fuel
H
i
(KWh/Stm
3
)
ρ (kg/Stm
3
)
f
Q
f
p
Biogas 6,395 1,1472 1,478 3,5
ATTENTION! The combustion head type and the settings depend on the fuel. The burner must be used only for its
intended purpose specified in the burner data plate .
ATTENTION! The corrective factors in the above table depend on the gas composition, so on the calorifc value and
the density of the gas. The above value can be taken only as reference.
Type --
Model
--
Year --
S.Number --
Output --
Oil Flow
--
Fuel --
Category --
Gas Pressure
--
Viscosity --
El.Supply --
El.Consump. --
Q
biogas
Q
naturalGas
1 478
 
=
p
biogas
p
naturalGas
3 5
 
=