Ferroli Domitop HF 24-30 E User manual

DOMITOP HF 24 - 30 E FERELLA GOLD HF 24 - 30 MEL
Wall-Mounting Gas
Boiler
Airtight Chamber,
Heating
TECHNICAL
MANUAL


EDITION
09ï2002
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2
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
1. Technical characteristics and data ....................................................... 3
1.1 Introduction ............................................................................................................. 3
1.2 Dimensions and connections .................................................................................. 4
1.3 General view and main components ....................................................................... 8
1.4 Technical data table .............................................................................................. 10
2. Product framework and internal components..................................... 11
2.1 H draulic circuit - heating ...................................................................................... 11
2.2 H draulic circuit - tap water via external boiler...................................................... 15
2.3 Gas circuit ............................................................................................................. 17
2.4 Burner unit............................................................................................................. 21
2.5 Fume circuit........................................................................................................... 23
2.6 Electrical circuit ..................................................................................................... 27
3. Operation ............................................................................................ 30
3.1 Operating principle ................................................................................................ 30
3.2 Operating diagram ................................................................................................ 31
3.3 Control panel ......................................................................................................... 32
3.4 Adjustments ........................................................................................................... 32
3.5 Operating parameter adjustment .......................................................................... 33
4. Troubleshooting ................................................................................. 34
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3
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
1. TECHNICAL CHARACTERISTICS AND DATA
1.1 Introduction
Our appliance is a high-efficiency heat generator for central heating running on natural gas or LPG
(configurable at the time of installation).
The boiler shell consists of a copper laminar exchanger whose particular shape guarantees high
exchange efficiency under all operating conditions and an open-flue burner e uipped with electronic
ignition and ionization flame control.
The boiler is totally sealed off from the installation room: the air needed for combustion is drawn from
outside and the flue gases are expelled by a fan. The boiler outfit moreover includes a variable speed
circulator, expansion tank, safety valve, filler cock, air pressure switch, water pressure switch,
temperature sensor and a safety thermostat.
Thanks to the control and adjustment system, unit operation is for the most part automatic. The power
for heating is automatically governed by the control system according to the indoor characteristics, the
characteristics of the building and of its location.
There are 5 LEDs on the control panel providing information on the units operating status.
General arnings
 Installation and maintenance must be carried out by professionally ualified personnel, according
to current regulations and the manufacturers instructions.
 Incorrect installation or poor maintenance can cause damage or physical injury. The manufacturer
declines any responsibility for damage caused by errors in installation and use or by failure to
follow the manufacturers instructions given in the instructions manual..
 Before carrying out any cleaning or maintenance operation, disconnect the unit from the electrical
power supply using the switch and/or the special cut-off devices.
Certification
The CE marking demonstrates that Ferroli gas units conform to the re uirements contained in the
applicable European directives.
In particular, this unit complies with the following EU directives:
 Gas Appliance Directive 90/396 assimilated with Italian Presidential Decree DPR 15.11.96 no.
661
 Efficiency Directive 92/42 assimilated with Italian Presidential Decree DPR 15.11.96 no. 660
 Low Voltage Directive 73/23 (amended by 93/68)
 Electromagnetic Compatibility Directive 89/336 (amended by 93/68) assimilated with Italian
Presidential Decree DPR 15.11.96 no. 615
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4
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
1.2 Dimensions and connections
Domitop HF 24 E version
760
98
15536 155
460
160100 25 150 25
8480 80
12070 120 150
110
272
249
100
725
114
321 4
Key
1System delivery
2Gas inlet
3System return
4System filler inlet
Top view
Bottom view
CONNECTIONS AXIS
CONNECTIONS AXIS
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DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
Ferella Gold HF 24 MEL version
Top view
Bottom view
123
135
4
1602515025100
271
705
98
15536 155 114
762
70 120 120 150
460
110
271
80
80 80
Top view
1System delivery
2Gas inlet
3System return
4System filler inlet
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6
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
Domitop HF 30 E version
Top view
Bottom view
Key
1System delivery
2Gas inlet
3System return
4System filler inlet
77
123
123
4
155
363
460
692
15 430 15
Ø80 Ø80 Ø80
760
120 120
36 215 54
110
202
110
189
175
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DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
Ferella Gold HF 30 MEL version
Top view
Bottom view
12 3
13 5
80 80 80
4
1543015
362
692
36 155 215 54
189 175
760
110 110120120
200
362
460
Key
1System delivery
2Gas inlet
3System return
4System filler inlet
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8
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
Key
5 Airtight chamber
7Inlet
10 System delivery
11 System return
14 Safety valve
16 Fan
19 ombustion chamber
20 Burner assembly
21 Main nozzle
22 Burner
26 ombustion chamber insulation
27 opper exchanger
28 Fume manifold
29 Fume outlet manifold
32 Heating circulator
34 Heating temp. sensor
36 Automatic air vent
43 Air pressure switch
44 Gas valve
49 Safety thermostat
50 Heating thermostat
56 Expansion tank
63 Heating temperature adjustment
74 Heating system cock
81 Ignition electrode
82 Detection electrode
84 1st gas valve operator
85 2nd gas valve operator
98 Off-On-Reset switch
114 Water pressure switch
145 Water gauge
187 Fume diaphragm
1.3 General view and main components
HF 24 E MEL version
RESET
OFF
ON
0
5
1
234
6
bar
98 63 145
117 4485841410
34
114
20
21
22 82 81
49
28
5
29 187 43
56
16
27
50
19
26
36
32
°C
DOMITOP - FERELLA GOLD version
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9
DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
HF 30 E MEL version
RESET
OFF
ON
0
5
1
234
6
bar
°C
74
43
16
27
29 187
28
5
50
19
26
22 82
56
81
49
20
21
36
32
10 14 784 114485
34
114
98 63 145
DOMITOP - FERELLA GOLD version
Key
5 Airtight chamber
7Inlet
10 System delivery
11 System return
14 Safety valve
16 Fan
19 ombustion chamber
20 Burner assembly
21 Main nozzle
22 Burner
26 ombustion chamber insulation
27 opper exchanger
28 Fume manifold
29 Fume outlet manifold
32 Heating circulator
34 Heating temp. sensor
36 Automatic air vent
43 Air pressure switch
44 Gas valve
49 Safety thermostat
50 Heating thermostat
56 Expansion tank
63 Heating temperature adjustment
74 Heating system cock
81 Ignition electrode
82 Detection electrode
84 1st gas valve operator
85 2nd gas valve operator
98 Off-On-Reset switch
114 Water pressure switch
145 Water gauge
187 Fume diaphragm
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DOMITOP HF 24 - 30 E
FERELLA GOLD HF 24 - 30 MEL
Version - 09.2002
1.4 Technical data table
Gas supply Pmax Pmin
Heating Power (Net Heat Value - Hi)
Heating Power (Gross Heat Value - Hi)
seful heating power 80°C - 60°C
Powers Pmax Pmin
kcal/h 20,000 8,300
kW 23.3 9.7
kcal/h 24,700 10,700
kW 28.7 12.4
kcal/h 22,200 9,900
kW 25.8 11.2
Dimensions, weights connections
Depth mm 272
Width mm 460
Height mm 760
Boiler water content litres 1.5
Expansion tank pre-filling pressure bar 1
Expansion tank capacity litres 8
Minimum working pressure in heating bar 0.8
Maximum working pressure in heating bar 3
Maximum working temperature in heating °C 90
Electrical protection rating IP 44
Electrical power supply
Power voltage/frequency V/Hz 220/50
Max electrical power absorbed W 125
Heating system connection 3/4
Filling system connection 1/2
Gas system connection inches 1/2
Weight with packing kg 35
Heating
Natural Gas delivery (G20) nm3/h 2.73 1.19
Natural Gas main nozzles (G20) mm 12 x 1.30
Pressure at Natural Gas burner (G20) mbar 11.8 2.5
Natural Gas supply pressure (G20) mbar 20.0
LPG burner (G31) Kg/h 2.00 0.87
LPG main nozzles (G31) mm 12 x 0.77
Pressure at LPG burner (G31) mbar 36.0 7.0
LPG supply pressure (G31) mbar 37.0
Safety valve bar 3
Pmax Pmin
25,800 10,900
30.0 12.7
31,600 13,800
36.8 16.1
28,500 12,500
33.1 14.5
363
460
760
1.7
1
10
0.8
3
90
44
220/50
125
3/4
1/2
1/2
45
3.50 1.53
16 x 1.25
11.8 2.5
20.0
2.57 1.13
16 x 0.75
35.5 7.0
37.0
3
Pmax Pmin
DOMITOP - FE ELLA GOLD 24 KW 30 KW
inches
inches
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