Baxi 47 075 35 Installation & Servicing Instructions Manual page 61

Fig. 77 and Fig. 78
page 43
14.13 Pump ­ Head Only (Fig. 79)
1. Drain the primary circuit and remove the socket head screws securing the pump head to the body and draw the head away.
2. Undo the screw on the pump wiring cover and remove the cover. Using a suitable flat bladed screw driver press the cable securing
levers downwards to release each wire after noting their position.
3. A standard replacement Grundfos 15­60 head can now be fitted. Connect the pump wiring to the new head. The pump speed must
be set to 3 (Fig. 80).
4. Reassemble in reverse order.
14.14 Pump ­ Complete (Fig. 81)
1. Drain the primary circuit.
2. Undo the two screws securing the body to the pipe and manifold and draw the pump forwards.
3. Undo the screw on the pump wiring cover and remove the cover. Using a suitable flat bladed screw driver press the cable securing
levers downwards to release each wire after noting their position.
4. Unscrew the automatic air vent from the pump body.
5. Connect the wiring to the new pump. Examine the 'O' ring seals on the return pipe and manifold, replacing if necessary.
6. Fit the air vent to the pump body and reassemble in reverse order.
14.15 Automatic Air Vent (Fig. 81)
1. Drain the primary circuit and unscrew the automatic air vent from the pump body.
2. Examine the 'O' ring seal, replacing if necessary, and fit it to the new automatic air vent.
3. Reassemble in reverse order.