Potterton Promax FSB 30 HE Installation & Service Instructions Manual page 33

Cable Clamp
4-way Terminal Block
S/L N
P/L
Wiring from System
Controls
S/L Switched Live
Earth
Neutral
N
Permanent Live
P/L
© Baxi Heating UK Limited 2010
Fig. 31
Fig. 32
Fig. 33
10.0 Installation
10.7 Making The Electrical Connections
WARNING: This boiler must be earthed
IMPORTANT: Four core cable is required to supply the
boiler as a permanent live is necessary for the operation
of the condensate pump and frost protection.
1. The electrical connections are on the right hand side of the
boiler. Depending upon the nature of the installation it may
be preferable to wire up to the boiler first before
manouvering into position.
2. Undo the two screws securing the cable clamp and place
to one side (Fig. 31).
3. Route the incoming electrical cable(s) from the system
control wiring centre through the grommet in rear of the
boiler and the grommet in the support bracket. This will
prevent damage to the cable(s).
4. Lay the cable through the cable clamp to gauge the length
of wire required when it is connected to the 4-way terminal
block.
5. Connect the (S/L), ( ), (N) and (P/L) wires to the
4-way terminal block (Fig. 33) and refit the cable clamp (Fig.
31).
INTEGRAL PROGRAMMER
6. If the optional integral programmer is being fitted it can be
done at this stage. Consult the instructions supplied in the
programmer kit.
7. Check the electrical installation for;
earth continuity, short circuits, resistance to earth, correct
polarity and fuse rating.
33