Saunier Duval Themaclassic F30E SB Instructions For Use Installation And Servicing page 54

20.30 Discharge safety valve, refer to diagram 20.19.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• Drain down the boiler only. Refert to relevant part of
diagram 20.1.
• Undo discharge pipe union nut.
• Pull out slotted metal clip from valve body and remove valve.
20.31 (F30E/F35E Only) Three-way valve head, refer to
diagram 20.20.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• Remove the gas control valve, refer to Section 20.28. (It will
not be necessary to remove gas control valve electrical
connections).
• Remove electrical plug from valve head.
• Pull out slotted metal clip from valve body and remove valve
head from body.
• Fit replacement valve head.
Note :
1) When refitting clip, ensure that letters YES are as shown.
2) It is not necessary to drain boiler to carry out this work.
20.32 (F30E /F35E Only) Three-way valve actuator, refer
to diagram 20.21.
Before starting refer to the front of Section 20 Important
information.
• Remove the front panel, refer to Section 17.3.
• Lower the control panel, refer to Section 17.4.
• Drain down the boiler only, refer to relevant part of diagram
20.1.
• Remove the gas control valve, refer to Section 20.28.
• Remove 3-way valve head, refer to Section 20.31.
• Remove the three way valve actuator, see diagram 20.21
4000123924-2
20 Replacement of Parts
F30E/F35E shown
F30E/F35E Only
F30E/F35E Only
54
PRESSURE
RELIEF
VALVE
Diagram 20.19
THREE WAY
VALVE HEAD
Diagram 20.20
THREE WAY
VALVE/ BYPASS
HOUSING
THREE WAY
VALVE
ACTUATOR
Diagram 20.21