commissioning
Initial preparation
At the time of commissioning, complete all relevant sections of the Benchmark Checklist located on the inside back pages of this document.
ARISTON Thermo UK LTD Limited support the Benchmark initiative. On pages pages 53 and 54 of this manual the Benchmark Commissioning Checklist and Service interval Record can be found. It is important that this is completed in the presence of your customer, they are shown how to use it, and it is signed by them. Please instruct your customer that they must have this manual with them whenever they contact a service engineer or us.
Preliminary electrical system checks to ensure electrical safety must be carried out by a competent person i.e. polarity, earth continuity, resistance to earth and short circuit.
Electricity supply
-Check that the voltage and frequency of the electricity supply correspond to the data shown on the boiler data plate;
-Make sure that the earthing connection is efficient.
Filling the Heating System:
Remove the front casing panel and lower the control panel as described on page 16).
Open the central heating flow and return cocks supplied with the connection kit;
Lift the cap on the automatic air release valve and leave open permanently;
Close all air release valves on the central heating system;
Gradually open the valves at the filling point (filling loop) until water is heard to flow, do not open fully;
Open each air release tap starting with the lowest point and close them only when clear water free of air is visible;
Purge the air from the pump by unscrewing the pump plug anti- clockwise, also manually rotate the pump shaft in the direction indicated by the pump label to ensure the pump is free;
Refit the pump plug;
Continue filling the system until at least 1.5 bar registers on the pressure gauge;
Inspect the system for water tightness and remedy any leaks discovered.
IMPORTANT!
MANUALLY VENT THE HEAT EXCHANGER AT THE MANUAL AIR VENT. FAILURE TO VENT ADEQUATELY MAY DAMAGE THE HEAT EXCHANGER (PAGE 7, LEGEND 2).
Filling of the DHW System (Combi only):
Close all hot water draw off taps;
Open the cold water inlet cock supplied with the connection kit; Slowly open each draw off tap and close them only when clear water, free of bubbles, is visible.
Gas Supply:
Inspect the entire installation including the gas meter and test for tightness. The entire installation should be in accordance with the relevant standards. In GB this is BS 6891 and in IE this is the current edition of I.S.813.
The connection on the the appliance is a 15 mm nut and olive located at the rear of the gas service cock.
If the gas supply serves other appliances, ensure that an adequate supply is available both to the boiler and the other appliances when they are in use at the same time.
Pipe work must be of an adequate size.
Pipes of less than 22 mm should not be used, final being 15 mm. Open the gas cock (supplied with the connection kit) to the appliance and check the gas connection on the appliance for leaks.
Water Treatment:
The boiler is equipped with a stainless steel heat exchanger.
The detailed recommendations for water treatment are given in BS 7593:1992 (Treatment of water in domestic hot water central heating systems); the following notes are given for general guidance;
If the boiler is installed on an existing system, any unsuitable additives must be removed;
Under no circumstances should the boiler be fired before the system has been thoroughly flushed; the flushing procedure must be in line with BS7593:1992.
Firstly fill the central heating system with the power off, and flush through cold, fill the central heating system again, adding a flushing detergent, run the boiler on central heating until it reaches its operating temperature and flush the system, refill the system with a suitable corrosion inhibitor,
NOTE: FAILURE TO CARRY OUT THE FLUSHING PROCEDURE WILL RESULT IN THE WARRANTY BECOMING VOID.
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