Dhw Heat Exchanger - Worcester GREENSTAR 25Si Instruction Manual

52
REPLACEMENT OF PARTS
27.1
B
27.2
26.1
26.2
A
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 25Si/30Si
REPLACEMENT OF PARTS
NOTE: Remove the Hydraulic block from the
boiler (See removing the Hydraulic
Block on page 51).
26. Plastic protection device
Ensure the system is fully drained (see
draining the appliance).
Disconnect all pipes connected to the pump
housing.
Remove the electrical connection to the
pump.
Withdraw the metal clip to the right of the
pump head to release the pump housing.
Slide the device to the left and then withdraw
it from the appliance.
26.1 Remove the spring clip from the pressure
relief valve housing.
26.2 Withdraw the pressure relief valve (A).
To refit, follow the above in reverse. Ensure
any seals that have been disturbed are
renewed.

27. DHW Heat exchanger

27.1 Undo the two screws (B) securing the plastic
housings to the heat exchanger.
27.2 Remove the heat exchanger
To refit, follow the above in reverse. Ensure
any seals that have been disturbed are
renewed.
8 716 115 165a (06/2008)