Introduction; Technical Data And Dimensions - Ferroli GNF 4 Installation And Operation Instructoins

GF N

1. INTRODUCTION

The GFN is a new cast-iron boiler that burns solid fuel
(coke and wood) or oil (with optional kit). The boiler shell
is composed of parts assembled with nipples. The pro-
file of these parts has been specially designed and the
optimal division of the fins provides high heat efficiency,
high heat output and considerable energy savings. The
firebox has been specifically designed to accommodate
large pieces of wood; it is loaded through the large top
door. The firebox is completely wet, which ensures a
long service life and high efficiency.
An optional kit, consisting of a new front door with safety
shutoff switch and a new control panel, is available for
mounting an oil burner directly on the boiler.
An optional safety overheating is also available (fig. 1).

2. TECHNICAL DATA AND DIMENSIONS

OIL
400
7
8
1. Thermostat control
2. Thermometer
3. Chimney draught adjustment
4. Loading door
5. Ash box door
6. Air inlet shutter
Coke III Wood
Model Power Power
output output
kW
14,4 12,3
GFN 4
GFN 5 19,4 16,1
GFN 6 23,4 19,9
GFN 7 29,4 23,7
GFN 8 34,4
27,5
Wood - Coke
400
2
4
5
6
Oil
Power Power
elements
output input
kW kW kW
18 20,1
26 28,9
34 37,7
42 46,5
50 55,3
Cod. 35446572 - 06/2007 (Rev. 00)
A
72
a1
fig. 2
a1. 1 1/2" system delivery
a2. 1 1/2" system return
a3. 1/2" boiler drain
a4. 3/4" safety coil connection (optional)
a5. 1/2" safety valve sheath connection (optional)
N° Water Max
content pressure
3
dm bar
4 20 3
5 24 3
6 28 3
7 32 3
8 36 3
Safety overheating system (optional)
a1 a4
1
a5
3
a2
a3
A Delivery Return
mm a1 a2
447 1 1/2" 1 1/2"
547 1 1/2" 1 1/2"
647 1 1/2" 1 1/2"
1 1/2"
747 1 1/2"
1 1/2"
847 1 1/2"
fig. 1
Weight
kg
160
190
220
250
280
3