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6.4.
Electrical installation
6.4.1.
General notice
The electrical installation must be carried out by an authorized electrician from beginning to end. In carrying out
the electrical installation, local regulations as well as any standards and specifications in force must be complied
with.
The wiring diagram is joined with the control panel.
Note:
Electrical connections, especially the connection to the mains, should only be made after all other
assembly and installation work has been completed.
Locally made installations (raceways, etc.) must not be clamped to the boiler's panel work!
6.4.2.
Connecting to the supply mains
External supply is one-phase, alternate current type 230VAC, 50Hz or three-phase alternate current 400VAC,
50Hz, both max. 16A. The apparatus is internally protected by a 6,3A delayed-action fuse (burner/boiler) and by
an additional 6,3A delayed-action fuse for each additional governor or module.
The quality of the supply must respect norm EN50160 (voltage +10% max, frequency +1%).
All external connection cables to the boiler must be suitably laid on site.
A DIN VDE 0116-compliant disconnecting device must be provided on site.
6.4.3.
Connecting the burner
The electrical connections of the burner (power supply and control) are made by the customer in accordance with
the requirements of the burner.
6.5.
Turbulators
Thanks to the turbulators, which are to be inserted in the smoke tubes, the combustion gas temperature can be
controlled.
All smoke tubes in the third pass must equally be provided with turbulators. These smoke tubes are those that
are open on the rear part, in the direction of the combustion gas collector. Also, read and follow the instructions
in the assembly guide.
Melbury HE/C
Number of turbulators
Outer diameter
Edge diameter
Pitch
Length
We reserve the right to make changes to dimensions and construction
Melbury HE, C 530 - 3000
L
530
580 630
700
24
30
30
33
Da
36
d
6
A
55
L
800
A
800
895
1150 1300
1650
33
31
36
36
44
6
55
1600
1200
24
Da
d
1900
2500
3000
41
48
43
48
60
72
8
10
70
80
2200 3000
Hamworthy Heating Limited – Dorset BH17 ONF
edition 12.2020
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