Ariston DFPK 644 GH Operating Instructions And Owner's Manual - Page 8
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Checking the tightness of the connection
GB
! When the installation process is complete, check the pipe
fittings for leaks using a soapy solution. Never use a flame.
! Should the gas pressure used be different (or vary slightly)
from the recommended pressure, a suitable pressure
regulator must be fitted to the inlet pipe (in order to comply
with current national regulations).
Burner and nozzle specifications
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
7HPK 644 D GH X /HA
7HPKQ 644 D GH /HA
DFPK 644 GH
8
Diameter
Thermal Power
(mm)
kW (p.c.s.*)
Nomin. Reduc.
157
3.00
1.00
132
1.90
0.80
110
1.00
0.50
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
P.C.S. = 37.78 MJ/m³
S
R
A
7HPK 755 D GH X/HA
7HPKQ 755 D GH /HA
DATA PLATE
Electrical
see data plate
connections
This appliance conforms to the following
European Economic Community directives:
- 2006/95/EEC dated 12/12/06 (Low
Voltage) and subsequent amendments
- 2004/108/EEC dated 15/12/04
(Electromagnetic Compatibility) and
subsequent amendments
- 93/68/EEC dated 22/07/93 and
subsequent amendments.
- 2009/142/EEC dated 30/11/09 (Gas) and
subsequent amendments.
- 2012/19/EC and subsequent
amendments.
Natural Gas
(G20 / 20 mbar)
By-pass
Nozzle
1/100
1/100
(mm)
(mm)
73
125
66
100
54
72
20
17
25
S
R
A
Adjusting the burner's
primary air
Flow*
l/h
(G20)
(mm)
286
4.7
157
2.6
95
2.0