51
SERVICING
Esprit - Installation and Servicing
esp8936
Air vent
Plug
Fan
6
5
70
SAFETY RELIEF VALVE REPLACEMENT
1. Refer to Frame 52.
2. Drain the boiler CH circuit. Refer to Frame
72.
3. Unscrew the nut securing the pipe to the
pump outlet.
4. Disconnect the electrical connections.
5. Withdraw the pump clip.
6. Remove screw securing pump through
bottom panel.
7. Pull pump forward to disengage from
manifold and remove.
8. Unscrew the discharge pipe union nut.
9. Unscrew the safety valve retaining screw.
10. Pull the safety valve upwards to remove.
11. Fit the new safety valve and tighten the
securing screw.
12. Reassemble in reverse order.
13. Refill the boiler. Refer to Frame 32.
14. Check operation of the boiler. Refer to
Frame 52.
71
AUTOMATIC AIR VENT REPLACEMENT
1. Refer to Frame 52.
2. Drain the boiler. Refer to frame 72.
3. Remove the turret from the boiler. Refer to
frame 24.
4. Release the silicon tubing from the sample
point.
5. Release the electrical connections from the
spark generator.
6. Remove the M5 x 10 screw retaining the top
flue manifold casting.
7. Remove the top flue manifold casting.
8. Remove the fan from the boiler. Refer to
Frame 47.
9. Remove the burner from the heat exchanger.
Refer to Frame 48.
10. Unscrew the air vent from its heat exchanger
mount and replace.
11. Re assemble the boiler in reverse order.
12. Refill the boiler. Refer to frame 32. Check for
leaks around the new air vent joint.
13. Check the operation of the boiler. Refer to frame 52.
8
9
10
3
4
5
6
SERVICING