Plate Heat Exchanger; Hydraulic Pressure Sensor - Baxi EcoBlue Advance Combi 28 Installation And Service Manual

Plate Heat
Exchanger
Rubber Seal
Fig. 62
Retaining Clip
Plug
Hydraulic
Pressure Sensor
Fig. 63
Comp No. 7212138 - 02 (06/14)
Control Box
removed for clarity
R.H. Stud -
Note offset
Pump, Gas Valve
Assemblies and Pipework
removed for clarity
10.3.16 Plate Heat Exchanger (Figs. 62 & 63)
1. Close the flow & return isolation taps and the cold mains inlet.
Drain the primary circuit and draw off any residual DHW.
2. Refer to Section 10.2 paragraphs 5 to 9 and remove the fan
etc.
3. Undo the screws securing the plate heat exchanger to the
hydraulic assembly.
4. Withdraw the plate heat exchanger by manoeuvring it to the
rear of the boiler, then upwards and to the left to remove.
Seals
5. There are four rubber seals between the hydraulic assembly
and heat exchanger which may need replacement.
6. Ease the seals out of the hydraulic assembly. Replace
carefully, ensuring that the seal is inserted parallel and pushed
fully in.
7. When fitting the new heat exchanger note that the right hand
location stud is offset towards the centre (Fig. 62).
8. Reassemble in reverse order.
10.3.17 Hydraulic Pressure Sensor (Fig. 63)
1. Close the flow and return isolation taps and drain the primary
circuit. For ease of access remove the fan and collector
assembly.
2. Remove the plug from the sensor and pull the retaining clip
upwards.
3. Reassemble in reverse order.
Maintenance
EcoBlue Advance Combi
10
59