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Fig. 31
Cable Clamp
4-way Terminal Block
S/L
N
Fig. 33
28
© Baxi Heating UK Ltd 2006
Hinge down
PCB Housing
Blue (CN11) Jumper
Red (CN12) Jumper
P/F
Optional Pump Feed Connection
only required for fully TRV'd system
8.0 Installation
8.8
Making The Electrical Connections
WARNING: This appliance must be earthed
1. The electrical connections are on the right hand side of
the unit.
2. Undo the two screws securing the cable clamp and
place to one side (Fig. 31).
3. The Baxi 100/2 HE Plus is factory set to give a
maximum output of 22.0 kW (75,000 Btu/hr). The
Control PCB jumper positions are as follows:
CN11 (Blue)
If the installation requires a greater output to achieve the
desired room temperature, this can be increased to 30.18
kW (103,000 Btu/hr) and the boiler can be adjusted as
follows (Fig. 32):
a)
Remove the top right hand securing screw and
hinge down the PCB housing.
b)
Remove the Red jumper labelled CN12 from the
bottom left hand side of the PCB.
c)
Hinge back up the PCB housing and secure with
screw.
If the boiler is to be used in conjunction with a Thermal
Store, the boiler can be adjusted as follows (Fig. 32):
a)
Remove the top right hand securing screw and
hinge down the PCB housing.
b)
Remove the Blue and Red jumpers labelled CN11
and CN12 from the bottom left hand side of the
PCB.
c)
Hinge back up the PCB housing and secure with
Fig. 32
screw.
4. Route the incoming electrical cable/s through the
grommet in the support bracket. This will prevent damage
to the cable.
5. Lay the cable through the cable clamp to gauge the
length of cable required when it is connected to the 4-way
terminal block.
6. Connect the (S/L), (N) and (
4-way terminal block (Fig. 33) and refit the cable clamp
(Fig. 31).
7. Check the electrical installation for;
earth continuity, short circuits, resistance to earth, correct
polarity and fuse failure.
CN12 (Red)
) wires to the
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