Baxi Eco 3 Service Manual download pdf (Page 32)

12.0 Changing Components

32

12.14 Pressure Gauge

1. Drain the primary circuit and undo the nut on

the pressure gauge capillary (Fig. 71).

2. Remove the timer cover and ease the timer

wiring aside. Undo the screws securing the

gauge retaining bracket (Fig. 72).

3. Remove the bracket and gauge assembly.

Depress the barbs on the side of the gauge and

remove the retaining bracket (Fig. 73).

4. Reassemble in reverse order.

12.15 Expansion Vessel

1. To replace the expansion vessel it is

necessary to remove the boiler from the wall.

NOTE: Alternatively a vessel of equivalent

capacity can be fitted on the system return

pipe as close as possible to the boiler.

2. Drain the system and undo all gas and water

connections. Remove the flue elbow.

3. Lift the boiler off the wall bracket and lay it on

it’s side on a clean flat surface.

4. Undo the nut on the vessel outlet spigot, and

remove the locknut and spring washer securing

the spigot to the boiler chassis (Fig. 74).

5. Undo the screws and remove the appliance

upper cross member (Fig. 76). Slide the

expansion vessel out of the retaining clips

(Fig. 75).

6. Reassemble in reverse order. Fully

recommission the appliance and system.

12.16 Spark Generator (Fig. 77)

1. Pull the electrode lead off the spark

generator. Remove the screws and spring

washers securing the generator to it’s mounting

bracket.

2. Pull the rubber shroud off the generator input

plug and disconnect the plug.

3. Reassemble in reverse order.

Pressure Gauge

Timer Cover

Pressure Gauge

Capillary

Gauge Retaining

Bracket

Expansion Vessel

Retaining Clip

Vessel Outlet

Spigot

Boiler

Chassis

Lock Nut

Spring

Washer

Electrode Lead

Spark Generator

Mounting Bracket

Fig. 72

Fig. 71

Fig. 73

Fig. 74

Fig. 75

Fig. 76

Fig. 77

Upper Cross

Member

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 43 44

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