Electrical Connections; Recommendations; Recommended Cable Cross Section; Wiring The Terminal Blocks - Potterton SIRIUS THREE FS 130 Installation, User And Service Manual

Floor-standing condensing gas boiler
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7.6

Electrical connections

Fig.83
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7702639 - v03 - 10072018
7.6.1

Recommendations

Only qualified professionals may carry out electrical connections, always
with the power off.
Earth the appliance before making any electrical connections.
France: Earthing must comply with the NFC 15-100 standard.
Power the appliance via a circuit that includes an omni-polar switch with
contact opening distance of 3 mm or more.
When making electrical connections to the mains, respect the polarities.
Danger
Position the various electrical cables in such a way that they never
touch the heating pipes.
Keep the various electrical cables far enough from the heating
pipes so that they cannot be damaged by the effect of the heat.
7.6.2

Recommended cable cross section

Decide on the cable according to the following information:
Distance of the appliance from the power source.
Upstream protection.
Neutral operating conditions.
Tab.28
Specifications of the power cable and the power source
Cable cross section
Curve C (circuit breaker)
Caution
Provide a separate power supply for the pump and a power
switch, if necessary.
7.6.3

Wiring the terminal blocks

Use a flat-bladed screwdriver less than 3.5 mm in width.
1. Press down the spring on the terminal block with a suitable
screwdriver.
7 Installation
3 x 1.5 mm²
10 A
67

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