40
13.0 Changing Components
© Baxi Heating UK Ltd 2016
13.14
Hall Effect Sensor (Fig. 59)
1. Ease the sensor upwards off the hydraulic inlet
manifold assembly.
2. Disconnect the electrical plug from the sensor.
3. Connect the plug to the new sensor. Carefully fit the
new sensor to the hydraulic assembly, ensuring it is fully
down.
13.15
Safety Pressure Relief Valve (Fig. 60)
1. Close the flow and return isolation taps and drain the
primary circuit.
2. Disconnect the discharge pipework from the valve.
Remove the sealing grommet.
3. Slacken the grub screw securing the pressure relief
valve and remove from the inlet assembly.
4. On reassembly ensure that the ‘O’ ring is in place and
the sealing grommet is correctly refitted to maintain the
integrity of the case seal.
13.16
Heating Pressure Gauge (Figs. 61 & 61a)
1. Close the flow and return isolation taps and drain the
primary circuit.
2. Remove the gauge from the boiler lower panel.
3. Remove the clip securing the pressure gauge capillary.
4. Fit the new gauge, ensuring that the capillary is routed
to prevent any sharp bends. Reassemble in reverse order
and ensure the gauge is firmly in position to maintain the
integrity of the case seal.
Heating
Pressure
Gauge
Control Box removed
for clarity
Fig. 61
Safety Pressure
Relief Valve
Grub Screw
‘O’ ring seal
Discharge Pipe
Fig. 60
Hall Effect
Sensor
Hydraulic Inlet
Assembly
Fig. 59
Pressure Gauge
Capillary
Fig. 61a