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COMMISSIONING 5
COMMISSIONING 5
COMMISSIONING 5
COMMISSIONING 5
COMMISSIONING 5
5-1
Commissioning Checks
IMPORTANT It is the responsibility of the installer to ensure that the
Dualstream System is properly commissioned.
Should the commissioning not be carried out, then the manufacturers
guarantee and any extended warranty, will become null and void.
The Guarantee Form MUST be completed and returned to GAH (HEATING
PRODUCTS) in the prepaid envelope provided.
5-1.1 Commissioning Procedure
1.
Check accumulator pressure is 1.5 Bar below the mains pressure - minimum 0.5
Bar.
2.
Check the Tundish is correctly installed to conform to the Building Regulations G3.
3.
Check all pipe connections are tight and no joints have been left un-soldered.
4.
Check ALL drain cocks are closed.
5.
Check ALL wiring connections have been made.
6.
Check the required earth continuity conductors have been fitted.
7.
Check the Immersion Heater has its cover and gasket fitted and is tight in the
cylinder.
8.
Check the Immersion Heater is set to 60°C.
9.
If fitted, check that the Scale Protection device or Water Softener has been fitted
according to manufacturers instructions.
10. Open all shut off valves.
11. Turn on Mains Stop Cock and allow the system to fill.
12. Open all domestic taps in turn to purge air.
13. Check system for leaks including around the Immersion Heater.
14. Check the installation of the tundish complies with the Building Regulations.
15. Check no water is discharging from the Pressure Relief Valve or the TPR valve, this
will be evident at the Tundish.
16. Test the operation of the TPR Valve by turning the manual test cap and ensure the
water flows freely and safely to waste.
17. Test the operation of the Combination Valve by turning the manual test cap and
ensure the water flows freely and safely to waste.
18. Set Cylinder Thermostat to 60°C (not required on 500 Cylinders).
The Boiler and heating system should be checked before continuing.
19. (Indirect) Check heating system has correct type of motorised valve fitted and wired
correctly to the cylinder flow.
20. Set Motorised Valve to Manual, open and allow the heat coil to fill.
21. Set the Motorised Valve to Auto.
22. Switch on the heating system.
23. Wait for the system to heat up.
24. Check temperature of hot tap water max. 60°C.
25. Check operation of cylinder thermostat. When turned down below tank temperature
the motorised valve should open. When turned up above tank temperature the
motorised valve should close.
26. Check for leaks again when the system is up to temperature.
27. Fill in details in the Benchmark Logbook.
