Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual

Also see for ecoTEC pro 24: Instructions for use Instructions for installation and servicing Instructions for installation and servicing Instructions for installation and servicing

Inspection and maintenance 100020244995_02 ecoTEC pro Installation and maintenance instructions 27NoteInstead of grease, use only water or com-mercially available soft soap to aid installa-tion.13. Insert the flow and return connections into the heatexchanger as far as they will go.14. Make sure that the brackets are seated correctly on theflow and return connections.15. Install the compact thermal module. (→ Page 29)16. Fill and purge the product and, if necessary, the heatinginstallation. (→ Page 19)9.6.4 Replacing the expansion vessel1. Drain the product. (→ Page 30)12342. Undo the screwed connection (4).3. Remove both screws (1) on the support plate (2).4. Remove the support plate (2).5. Pull out the expansion vessel (3) towards the front.6. Insert the new expansion vessel into the product.7. Screw the new expansion vessel to the water connec-tion. Use a new seal for this.8. Attach the support plate using both screws (1).9. Fill and purge the product and, if necessary, the heatinginstallation. (→ Page 19)9.6.5 Replacing the PCB or the displayNoteIf you only replace one component, when theproduct is switched on, the new component ad-opts the parameters that were previously set fromthe component that was not replaced.1. Open the electronics box. (→ Page 15)2. Replace the PCB or display according to the assemblyand installation instructions supplied.3. Close the electronics box.9.6.6 Replacing the PCB and the display1. Open the electronics box. (→ Page 15)2. Replace the PCB and display according to theassembly and installation instructions supplied.3. Close the electronics box.4. Press the on/off button on the product. (→ Page 18)◁ You are automatically taken to D.093 to set thedevice specific number.5. Set the correct value for the relevant product type in ac-cordance with the table below and confirm by pressing.Product type numberVUW 246/5-3 (H-GB) ecoTEC pro247VUW 286/5-3 (H-GB) ecoTEC pro2822VUW 286/5-3 (P-GB) ecoTEC pro2822◁ The electronics are now set to the product type andthe parameters of all diagnostics codes are set todefault settings.6. Make the system-specific settings.9.7 Completing repair work1. Establish the power supply.2. Switch the product back on if this has not yet beendone. (→ Page 18)3. Install the front casing.4. Open all service valves and the gas isolator cock.9.8 Checking the product for leak-tightness▶ Check that the product is leak-tight. (→ Page 22)10 Inspection and maintenance▶ You must carry out an annual inspection of the product.The annual inspection can be effectively performedwithout removing components by requesting data fromthe DIA system, carrying out the simple visual checks in-dicated in the table in the appendix and performing a fluegas measurement. The maintenance intervals and theirscope are determined by the heating engineer based onthe condition of the boiler found during the inspection. Allinspection and maintenance work should be performed inthe order specified in the table in the appendix.During any inspection and maintenance or after changeof parts of the combustion circuit, the following must bechecked:– The boiler has been installed in accordance with the rel-evant installation instructions.– The integrity of the flue gas installation and flue seals isin accordance with the relevant flue installation instruc-tions enclosed.– Visual, the integrity of the boiler combustion circuit andrelevant seals (paying particular attention to the burnerdoor seal).– The gas inlet working pressure at maximum rate.– The gas flow rates.– Correctness of electrical, water and gas connections.– Correctness of the water pressure.– The condition of the whole system, in particular the con-dition of radiator valves, evidence of leakage from theheating system and dripping taps.▶ Correct any faults before proceeding.