Bosch Worcester 15SBi Installation And Servicing Instructions page 25

15.4.5 Combustion Chamber Insulation
Remove the burner and the primary heat exchanger. Refer to
Section 15.3.4, 15.4.21.
Replace the side and front pads in the combustion chamber
assembly.
Replace the rear insulation pad. Refer to Fig.45
Fig.45. Combustion Chamber Insulation.
2
3
1. Combustion Chamber Insulation - Front Panel
2. Combustion Chamber Insulation - Side Panel
3. Combustion Chamber Assembly
15.4.6 Pressure Gauge
Remove the cabinet front panel and lower the facia panel. Drain
the appliance as described in Section 15.3 preceding.
Withdraw the clip and remove the pressure sensor. Unclip the
gauge head and remove. Refer to Fig. 46 and 47.
Do not omit the O-ring from the pressure capillary when fitting
the replacement gauge.
Fig.47. Pressure Gauge and Relief Valve
3
4
5
1
1
2
Fig.46. Pressure Gauge Fixing.
2
2
1
1. Pressure Gauge Head
2. Pressure Gauge Head Fixing Clips
15.4.7 Relief Valve
Remove the cabinet front panel and lower the facia panel.
Drain the appliance as described in Section 15.3 preceding.
Remove the casing bottom panel and disconnect the discharge
pipe and pressure gauge sensor. Refer to section 15.4.6.
Withdraw the clip and withdraw, at an angle, the valve. Refer to
Fig .37 and 43.
15.4.8 Diverter Valve. [if fitted]
Remove the cabinet front panel and lower the facia panel.
Drain the appliance as described in Section 15.3 preceding.
Disconnect the electrical connections. Pull out the correct clips
and remove the valve. Refer to Fig.20
25
7
6
1. Pressure Gauge Sensor Fixing
2. Drain
3. Pressure Gauge Head Fixing
4. Facia
5. Facia Fixing Screw (2)
6. Relief valve
7. Relief Valve Discharge Pipe Connection