Unigas HR91A, Manual Of Installation, Use And Maintenance

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PART I: SPECIFICATIONS
6
1.1 Burner model identification
Burners are identified by burner type and model. Burner model identification is described as follows.
1.2 Technical Specifications
* NOTE ON THE WORKING SERVICE: the control box automatically stops after 24h of continuous working. The control box
immediately starts up, automatically.
Type HR512A Model MG. MD. S. *. A. 1. 80.
(1) (2) (3) (4) (5) (6) (7) (8)
1 BURNER TYPE HR91A, HR92A, HR93A, HR512A, HR515A, HR520A, HR525A
2 FUEL M - Natural gas
L - LPG
G - Light oil
3 OPERATION (Available versions) PR - Progressive
MD - Fully modulating
4 BLAST TUBE S - Standard
5 DESTINATION COUNTRY * - see data plate
6 BURNER VERSION A - Standard
Y - SpecialeSpecial
7 EQUIPMENT 1 = 2 gas gas proving system
8 = 2 gas gas proving maximum gas pressure switch
8 GAS CONNECTION 50 = Rp2 65 = DN65
80 = DN80 100 = DN100
BURNER TYPE HR91A MG.. HR92A MG.. HR93A MG..
Output min. - max. kW
480 - 2670 480 - 3050 550 - 4100
Fuel
Natural gas - Light oil
Category
(
see next paragraph
)
Gas rate-
Natural gas
min.- max. (Stm
3
/h)
51 - 283 51 - 323 58 - 434
Gas pressure mbar
(
see Note 2
)
Light oil rate
min.-max. kg/h 40 - 225 40 - 257 46 - 345
Oil viscosity
cSt @ 40°C 2 - 7.4
Oil density kg/m
3
840
Light oil train inlet pressure
bar max 2
Power supply
230V 3~ / 400V 3N ~ 50Hz
Total power consumption
kW 5.6 7.1 9.1
Electric motor
kW 4 5.5 7.5
Pump motor
kW 1.1 1.1 1.1
Protection
IP40
Operation
Progressive - Fully modulating
Gas train 50
Valves size / Gas connection 50 / Rp 2
Gas train 65
Valves size / Gas connection 65 / DN65
Gas train 80
Valves size / Gas connection 80 / DN80
Gas train 100
Valves size / Gas connection 100 / DN100
Operating temperature °C
-10 ÷ +50
Storage Temperature °C
-20 ÷ +60
Working service (*) Intermitent
Note1:
All gas flow rates are referred to Stm
3
/h (1013 mbar absolute pressure, 15 °C temperature) and are valid for G20 gas
(net calorific value H
i
= 34.02 MJ/Stm
3
); for L.P.G. (net calorific value H
i
= 93.5 MJ/Stm
3
)
Note2: Maximum gas pressure = 500mbar (with Siemens VGD)
Minimum gas pressure = see gas curves.