51
Henrad SEC FF -
Installation
79 PUMP REPLACEMENT
SERVICING
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to
Frame 53.
3.
Drain the boiler. Refer to Frame 72.
4.
Swing the control panel down.
5.
Undo the pump top and bottom union
connections and draw the pump
forward.
6.
Supporting the pump, remove the
terminal box cover and disconnect the
electrical leads.
7.
Unscrew the gland nut and withdraw
the cable from the terminal box.
8.
Withdraw the pump from the boiler.
9.
Fit the new pump and re-assemble in
reverse order, ensuring that:
a.
The new seals (provided) are fitted.
b.
The electrical connections are
correctly remade.
c.
The pump selector switch is set at
position 3.
10.
Check the operation of the new pump.
80 SAFETY VALVE REPLACEMENT
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to
Frame 53.
3.
Drain the boiler. Refer to Frame 72.
4.
Swing the control panel down.
5.
Disconnect the discharge pipe.
6.
Remove the socket screw from inside
of the fitting and pull the valve off the
connecting pipe.
7.
Fit the new valve, complete with 'O'
ring provided, and re-assemble in
reverse order.
8.
Check the operation of the new valve.
SER
VICING
