Technical data
Page 75 
12 COMMISSIONING & SERVICING 
12.1  Commissioning 
Note:  It  is  the  responsibility  of  the  installer  to  ensure  that  the  boiler  is  properly 
commissioned  by  an  OFTEC  trained  and  registered  technician.  Failure  to  do  so  WILL 
invalidate ALL warranties. 
Before firing ensure  that all  the baffles  are in place,  as they  may have been displaced  during 
transit; Refer to the General Information section. Switch the boiler on, ensuring all controls are 
calling for heat. 
The oil pump pressure must be checked by fitting a pressure gauge to the pump pressure port. 
If necessary the pressure should be adjusted until it corresponds with the value in the Technical 
Data section for the required output. Using a smoke pump, check the smoke number. It should 
be zero. 
Using a flue gas analyser, check the CO
2
 content and the flue gas temperature once the boiler 
is  hot.  Testing  while the  boiler  is still  relatively cold  gives  inaccurate  results  and  leads  to 
incorrect adjustments being made. 
Where a balanced flue has been fitted ensure the air duct connecting the flue and burner has 
been properly connected before commissioning. 
Note: All product warranties will be invalidated if the appliance is not commissioned by a 
Warmflow or OFTEC trained and registered technician and the commissioning certificate 
of the OFTEC Boiler Passport completed and returned to Warmflow within 30 days from 
the date of installation and 90 days from the date code stamped on the appliance. 
Additionally, to comply with the building regulations, the boiler passport or OFTEC form CD11 
should be completed and a copy left with the householder. 
12.2  Servicing 
12.2.1 General Requirements 
The  appliance  must  be serviced  annually  by  a  Warmflow  or  an  OFTEC  registered  service 
technician in accordance with the recommendations laid out in OFTEC‟s technical information 
book 2 – „Pressure Jet Appliances – Commissioning Requirements for Technicians‟. 
Additionally, when servicing, special attention should be paid to the condition of the oil nozzle, 
flexible oil line, fuel filter, door insulation, sealing rope and the secondary heat exchanger door 
seal. If found to be defective, they must be replaced. 
The system corrosion inhibitor level must be checked (instant on-site test kits are available from 
inhibitor  manufacturers)  and  additional  inhibitor  must  be  added  if  the  system  is  found  to  be 
under-dosed. Refer to the inhibitor manufacturer for further guidance. 
Note: All product warranties will be invalidated if the appliance is not serviced annually 
by  a  Warmflow  or  OFTEC  trained  and  registered  technician  and  details  logged  in  the 
OFTEC Boiler Passport. 










