MCDonald MULTIflow, Техническое руководство

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Issue 3 13/01/21
16
Commissioning
The below is a recommended guide of actions and checks that should be undertaken
during commissioning:-
DO
✓
During commissioning, complete all relevant sections of the Commissioning
Checklist (Page 21-23). This must be completed during commissioning and left
with product to meet the Warranty conditions.
✓
Check the incoming mains water pressure. If the incoming mains pressure is higher
than
3.0 Bar , fit a Pressure Reducing Valve set at 3.0 Bar maximum – recommended
2.1 Bar where the cold supply enters the property as this will create balanced
pressure throughout.
✓
Ensure that connections are fitted in accordance with the sketch supplied
✓
Ensure the drain is connected to allow draining of the unit if required. If a drain-
cock is fitted, we recommend a DZR fitting.
✓
Fit the Overflow with Copper piping or high temperature plastic to the thermal
store system where required.
✓
Ensure minimum of 225mm between the top of the tank and ceiling to allow access
to service the ball-valve if ever required.
✓
Check that all pipework connections on the MULTI flow are tight with pipes fully
inserted following transit and handling.
✓
Fill the MULTI flow via the Feed & Expansion Tank.
✓
Ensure the system is inhibited correctly – see page 6.
✓
Check the water level in the Feed & Expansion Tank.
✓
On the Manual Fill version, once the unit is filled through the pipework, close off
the isolation valve, disconnect the flexible hose from the pipework and cap the pipe
to avoid any dead legs.
✓
Check for leaks throughout the thermal storage system.
✓
Run all taps and other hot outlets to remove all air from the system.
✓
Electric only - Immersion Heaters should be set at 70⁰C to meet users’ hot water
requirements.