Worcester GREENSTAR 24i Junior Installation Instructions Manual page 56

SERVICE AND SPARES
Refer to figure 99.
1. Release the clip.
2. Move the lower exhaust connector up
B Remove the complete exhaust assembly.
1.
Fig. 99 Release lower exhaust connection
Refer to figure 100.
1. Unscrew the plastic nut.
2. Remove the nut from the bottom of the boiler.
3. Rotate lever to release the return pipe.
1.
Fig. 100
Refer to figure 101.
1. Lift the heat exchanger up to clear.
2. Pull the heat exchanger forward from the case.
56
2.
3.
2.
Fig. 101 Heat exchanger removal
B Reassemble and check combustion as stated in the
gas conversion section. 6.6.
NOTICE: CO/CO
B If the joint between the Air/Gas manifold
and heat exchanger is disturbed sealing
gasket must be replaced.
B After completing the service of the
appliance, the CO/CO
and set to the limits shown in "Setting
the air/gas ratio" on page 47.
6 720 644 741a (2010/10)
2.
1.
CHECKS
2
must be checked
2