Unigas C120A, Installation Manual, Page: 6 / 116

PART I: SPECIFICATIONS
6
Burner model identification
Burners are identified by burner type and model. Burner model identification is described as follows.
Fuel
The burner technical specifications, described in this manual, refer to natural gas (calorific net
value Hi = 9.45 kWh/Stm
3
, density ρ = 0.717 Kg/Stm
3
). For different fuel such as LPG, town gas
and 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 C85A Model M-. MD. SR. *. A. 1. 80. ES.
(1) (2) (3) (4) (5) (6) (7) (8) (9)
1 BURNER TYPE C85A, C120A
2 FUEL M - Natural gas
B - Biogas
L - LPG
3 OPERATION (Available versions) PR - Progressive
MD - Fully modulating
4 BLAST TUBE AND AIR INLET CONFIGURATION
(see picture on page 5)
SR = Standard blast tube + ABS polymer (silenced) air intake
SP = Standard blast tube + aluminium air intake
LR = Extended blast tube + ABS polymer (silenced) air intake
LP = Extended blast tube + aluminium air intake
5 DESTINATION COUNTRY
* - see data plate
6 BURNER VERSION A - Standard
Y - Special
7 EQUIPMENT 0 = 2 gas valves
1 = 2 gas gas proving system
7 = 2 gas maximum gas pressure switch
8 = 2 gas gas proving maximum gas pressure switch
8 GAS CONNECTION
see Specifications
32 = Rp1
1/4
40 = Rp1
1/2
50 = Rp2
65 = DN65 80 = DN80
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
WARNING! The burner must be used only with the fuel specified in the burner data
plate .
Fuel
Hi (KWh/Stm
3
) ρ (kg/Stm
3
)
f
Q
f
p
LPG 26,79 2,151 0,353 0,4
Town gas 4,88 0,6023 1,936 3,3
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
 
=