Heat Exchanger - Worcester GREENSTAR 24i Junior Installation, Commissioning And Servicing Instructions

SERVICE AND SPARES
4
Fig. 103 Initial location of the clamping plate
[1] Retaining plate assembly
[2] Clamping plate
[3] Gasket
[4] Bracket
[5] Underside view of the clamping plate
[6] Mating surface
[7] Location edge
[8] Air/Gas manifold assembly
▶ Tighten the nut on the retaining plate assembly [1] until the underside
face of the clamping plate mates with the top of the heat exchanger as
indicated by the two arrows in figure 105
Refer to figure 104 for detail of the clamping and mating surface [6]
▶ It is important to clamp the plate down firmly, without over tightening,
to the heat exchanger to ensure a gas tight seal
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6
5
Fig. 104 Clamping plate detail
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Fig. 105 Clamping plate secured

6.8.11 HEAT EXCHANGER

▶ Isolate flow and return valves then drain the boiler.
▶ Remove syphon.
▶ Remove the air/gas manifold and fan.
Refer to figure 106.
1. Remove the clip from plastic elbow on the flow pipe.
2. Pull flow pipe away from heat exchanger.
2.
1.
Fig. 106 Flow pipe removal
Refer to figure 107
1. Remove the three screws securing the turret to the top of the boiler.
2. Turn the upper exhaust connector anti-clockwise to release from the
hook.
3. Pull the upper exhaust connector down.
3.
Fig. 107 Upper exhaust assembly
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1.
2.
6 720 802 047 (2013/05)