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6.5 Pump (Complete)
Close the CH flow and return valves, ensuring the drain point on the flow
valve is connected to the appliance side. Drain off the water from within
the appliance using the drain valve, unplug the electrical connector from
the flying lead and unscrew the lower screw that retains the pump to the
appliance. Withdraw the retaining clip at the rear of the body and
remove the pump complete. Replace with a new component in reverse
order.
6.7 Expansion Vessel
Close the CH flow and return valves, ensuring the drain point on the flow
valve is connected to the appliance side. Drain off the water from within
the appliance using the drain valve, remove the LH painted case side and
unscrew the flexible hose connection from the expansion vessel. Unscrew
the upper retaining bracket and remove the expansion vessel. Replace
with a new component in reverse order.
6.8 Pressure Relief Valve
Close the CH flow and return valves, ensuring the drain point on the flow
valve is connected to the appliance side. Drain off the water from within the
appliance using the drain valve, remove the pump as described in section
6.5 and unscrew the discharge connection. Withdraw the retaining clip and
remove the pressure relief valve. Replace with a new component in reverse
order.
