Burner And Nozzle Specifications - Ariston PK 644 D GH E X Operating Instruction

Burner and nozzle specifications

GB
Table 1
Burner
Fast (R)
Semi Fast (S)
Auxiliary (A)
Supply pressures
* At 15°C and 1013,25 mbar-dry gas
Natural
S
S
A
PK 644 D GH X/HA
PKQ 644 D GH /HA
PK 644 D GH E X /HA
24
Diameter Thermal Power
(mm) kW (p.c.s.*)
Nomin. Reduc.
157 3.00
132 1.90
110 1.00
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
P.C.S. = 37.78 MJ/m³
S
R R
A
PK 755 D GH X/HA
PKQ 755 D GH /HA
PK 755D GH E X /HA
Natural Gas
(G20 / 20 mbar)
Nozzle
By-pass
1/100
1/100
(mm) (mm)
1.00 125
73
0.80 66 100
0.50 54 72
S
A
Adjusting the burner's
primary air
Flow*
l/h
(G20) (mm)
286 4.7
157 2.6
95 2.0
20
17
25