Commercial Heating | Gas Engineer | Vaillant |Gas Boiler Repair Services | Commercial Catering

Commercial Gas Systems Ltd

Vaillant continues to build on its unrivalled reputation and has expanded its commercial range to include a broad range of both floor standing and wall-hung boilers, as well as heat pumps, plate heat exchangers, cylinders and controls.


Installation, servicing and maintenance made easier

Maintenance work Interval 

1 Ask the end user whether any significant problems occur when operating the product Annually 

2 Use the diagnostics system to check the product's fault history Annually 

3 Visually inspect whether the air/flue pipe and its opening have been installed correctly in accordance with the set-up instructions Annually 

4 Check that the unit has been installed correctly and the connections have been secured Annually 

5 Check all of the connections for tightness Annually 

6 Check that the condensate pipe is in good condition, that it is leak-tight and that the drain is correct Annually 

7 Check whether all of the externally routed condensate pipes are dimension correctly and have been insulated sufficiently (frost protection) Annually 

8 Check whether the gas flow rate corresponds with the specifications on the data plate and lies within the tolerances specified in these instructions Annually 

9 If the gas flow rate lies outside of the tolerances specified in these instructions, eliminate the fault in accordance with the regulations and the current technology Annually 

10 Check the general condition of the product and, if required, eliminate any faults that are found Annually 

11 Carry out the combustion analysis: Measure the CO content, CO₂ content and the CO/CO₂ ratio. For products with a rear air/flue connection: The combustion analysis can only be carried out when the unit casing has been removed; it is not necessary to test these products for flue gas recirculation Annually 

12 Check the product's recirculation at the supply air test point on the air/flue pipe. If required, inspect the entire air/flue system and, if necessary, correct the fault Annually 

13 Disconnect the product from the electrical installation Annually 

14 Check and, if required, correct the electrical installation Annually 

15 Remove the unit casing, check the condition of all of the functional components, in particular for leaks, corrosion, rust, etc. and, if required, repair any damage Annually 

16 Visual inspection of the heat exchanger and burner seals Annually 

17 Carefully clean the inside of the product: The air passages to the burner must be clear and clean Annually 

18 Close the installation's gas stopcock and, if required, service valves Annually 

19 Check the quality of the heating water: Clarity (clouding), correct inhibitor and pH value Annually 

20 Removing the gas-air mixture unit If required, at least every 5 years 23 

21 Checking the burner If required, at least every 5 years 24 22 Cleaning the condensate trap Annually 25 

23 Filling the condensate trap Annually 18 24 Cleaning the heat exchanger If required, at least every 5 years 

24 Appendix 0020238195_05 ecoTEC plus Installation and maintenance instructions 27 

25 Check and, if required, replace the insulating mat in the burner area If required, at least every 

5 years 26 Installing the gas-air mixture unit If required, at least every 5 years 25 

27 Reassemble the product After each time maintenance work is carried out 

28 Open the service valves, carry out the required leak-tightness test Annually 

29 Fill the product/heating installation to the filling pressure specified for the system Annually 

30 Connect the product to the electrical installation Annually 

31 Run the test operation on the product/heating installation including hot water generation (if available) and, if required, purge the product/heating installation Annually 

32 Record all of the analysis results in the Benchmark service record in these instructions Annually