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PYROGAS VARINO 65 - 300
We reserve the right to make changes to dimensions and construction 16 Edition 02.09.2015
© Copyright YGNIS AG CH-Ruswil
6.9. Electrical installation
6.9.1. Precautions
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.
Modifications to the internal wiring in the unit are not allowed without our written permission. Modifications
performed by the customer that lead to a defect in the unit or to material damage to installation components or
buildings as a result of non-observance of this instruction release the manufacturer from his warranty
observation.
Observe the installation instructions supplied with the control panel!
Important: 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!
6.9.2. General information
Mains connection Single-phased alternating current 230 VAC +10%, 50 Hz +1% acc. EN50160.
Fuse maximum 16 amps (slow)
Current consumption (See "Technical data"). In the case of installed heating controllers, it must be taken
into account that the individual connections of the pumps must not exceed the
maximum current consumption. Precise data on the individual connections (pumps,
mixer drives etc.) can be found in the corresponding electrical diagram.
Internal wiring The burner and all monitoring elements are readily wired by the factory.
Wiring by customer All parts to be connected to the unit on site such as sensors, pumps, mixer drives
and external safety devices are to be connected to the terminal strips on the boiler
control panel. Inspection work and the correct functioning of the third-party devices
are the responsibility of the electrician.
Temperature sensor All temperature sensors to be assembled by the customer (depending on boiler
control panel variant) are delivered in a cardboard box with an installation instruction.
6.9.3. Sensor assembly
Junction boxes or sockets are to be avoided. Sensor and extra-low-voltage cables must be laid separately from
mains lines. Use own sensor cable with max. 100 m length, cable 2 x 1 mm
2
not screened
Cable length: up to 25 m cable cross section: 0.25 mm
2
Cable length: up to 50 m cable cross section: 0.5 mm
2
Cable length: up to 100 m cable cross section: 1.0 mm
2
External sensor: In 2/3 facade height or on 1
st
floor not above windows or below roof preferably
installed on the north or north west side. Avoid direct sunlight. Position to be
arranged with heating planner.
Forward flow sensor: Supply flow clip-on sensor
assemble directly behind the pump (approx. 0.5 m) in the supply flow of the heating
or, if the pump is assembled in the return flow, approx. 1.5 m after the mixer position.
Assembly: assemble on the bare pipe with supplied clamp band, without conductive
paste
Supply flow immersion sensor
assemble directly behind the pump (approx. 0.5 m) in the supply flow of the heating
or, if the pump is assembled in the return flow, approx. 1.5 m after the mixer position.
Assembly: assemble in the pipe bend against the flow direction of the heat transfer
medium
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