Quick Start Manual

8.0 Installation

8.7 Making The Electrical Connections

(Fig. 26a)

WARNING: This appliance must be earthed.

1. The electrical connection is on the rear left hand

side of the unit.

2. Remove the electrical plug and lead assembly from

the hardware pack.

3. Connect L, N & E of the lead into the fused double

pole isolator serving the boiler. Connect the plug to

the socket at the back left at the bottom of the boiler.

4. Remove the metal shield from the hardware pack

and connect it over the plug.

5. If fitting an integral timer please refer to the

instructions supplied with the kit.

6. Check the electrical installation for; earth continuity,

short circuits, resistance to earth, correct polarity and

fuse failure (see Section 8.13 Electrical System Checks).

8.8 Connecting an External Timer

1. Undo the screw securing the electrical cover and

remove (133 HE Plus only) (Fig. 27).

2. To connect an external timer switch circuit, remove

the link wire between terminals 1 & 2 and connect the

switch circuit (Figs. 28 & 29).

3. A cable clamp is provided for incoming cables.

Fig. 27

Fig. 28

Fig. 29

Cable Clamp

2-way

Terminal

Block

Link Wire

External Timer

Fig. 26a

Filter

Plug

Metal Shield

Electrical

Cover

1 2

PCB

For External

Controls