Burner Model Identification; Burner Type; Technical Specifications - Unigas PN91 Manual Of Installation - Use - Maintenance

Burner model identification

Burners are identified by burner type and model. Burner model identification is described as follows.
Type PN91 Model DG.
(1) (2)

(1) BURNER TYPE

(2) FUEL
(3) OPERATION (Available versions)
(4) BLAST TUBE
(5) DESTINATION COUNTRYDESTINATION COUNTRY
(6) BURNER VERSION

Technical Specifications

BURNER
Output
Fuel
Oil viscosity
Light oil rate
Heavy oil rate
Power supply
Total power consumption (Heavy oil)
Total power consumption (Petroleum)
Fan motor
Pre-heater resistors (heavy oil)
Pre-heater resistors (Petroleum)
Protection
Approx. weight
Operation
Operating temperature
Storage Temperature
Working service*
Heavy oil net calorific value (Hi): 40.4 MJ/kg (average value).
Burners provided with Siemens LMO44 control box: the control box automatically stops after 24h of continuous working. The con-

trol box immediately starts up, automatically.
Burners provided with Siemens LAL25 control box: for safety reasons, one controlled shutdown must take place every 24 hours of

continuous working.
PART I: INSTALLATION
PR. S. *. A.
(3) (4) (5) (6)
min - max kW
min. - max. kg/h
min. - max. kg/h
kW
kW
kW
kW
kW
kg
°C
°C
C.I.B. UNIGAS
PN91 - PN92 - PN93 - PN510 - PN515 - PN520 - PN525
N- Heavy oil, viscosity <= 50cSt (7° E) @ 50° C
D- Heavy oil, viscosity <= 400cSt (50° E) @ 50° C
G- Light oil
P- Petroleum, viscosity 89cSt (12° E) @ 50° C
PR - Progressive
S - Standard
* - see data plate
A - Standard
Y - Special
PN91
698 - 2.093
D Heavy oil - G - Light oil
See "Burner model identification" table
59 - 176
61 - 182
230/400V 3N a.c. 50Hz
22.5
10.5
4
18
6
240
Progressive - Fully modulating
5
MD - Fully modulating
L - Extended
PN92
849 - 2.558 550 - 4.100
72 - 216 46 - 346
74- 223 48- 357
24
12
5.5
18
6
IP40
280
-10 ÷ +50
-20 ÷ +60
Intermittent
PN93
32
16
7.5
24
8
290