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LR, LRK, LR-NT, LRK-NT 21 - 32
We reserve the right to make changes to dimensions and construction 35 edition 30.10.2007
6.4. Electrical installation
6.4.1. General notice
The electrical installation must be carried out by an authorised 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.
L
d
Da
A
Pyronox LR/LRK 21 22 23 24 25 26 27 28 29 30 31 32
Number of turbulators
(without ARF)
24 30 30 33 33 31 36 36 41 48 43 48
Number of turbulators
(with ARF)
21 27 27 30 30 28 32 32 37 43 40 44
Outer diameter Da 36 44 60 72
Edge diameter d 6 6 8 10
Pitch A 55 55 70 80
Length L 800 1600 1200 2200 3000
© Copyright YGNIS AG CH-Ruswil
37


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