Mira Sprint 7.5 Installation, Operation, Maintenance Manual page 25

4. Heater Tank - Removal and Installation
WARNING! Isolate the electrical and water supplies before removing the cover. Mains
electricity connections are exposed when the cover is removed.
4.1. Remove the three cover retaining screws, the cover and the service tunnel.
4.2. Remove the hose from the outlet connector and loosen the connection to the inlet
connector assembly.
4.3. Make a note of the positions of the electrical wiring and remove the wiring from the
terminal block.
4.4. Remove the screws that hold the inlet clamp bracket in position and remove the
clamp bracket.
4.5. Remove the screws that hold the flow valve and switch assembly and the heater
tank in position.
4.6. Carefully pull the flow valve and switch assembly and the heater tank away from
the case. Make sure that you ease the inlet connector assembly off the inlet supply
pipe.
4.7. Make a note of the positions of the wiring on top of the heater tank.
4.8. Remove the blue wire and associated solenoid wires and the green earth bonding
wire from the top of the heater tank.
4.9. Remove the brown and red wires from one side of the thermal switch and the
second brown wire from the other side of the thermal switch.
Caution! Do not press printed disc on the thermal switch as this will make the
component unserviceable.
4.9. Remove the fixing screw and remove the thermal switch.
4.10. Remove the red and black tank wires from the microswitches.
4.11. Seperate the heater tank from the flow valve and switch assembly.
4.12. Remove the outlet connector from the heater tank.
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