Commissioning; Pre-Commissioning Checklist - FLOWTECH flowpress WMDA Operation And Maintenance Manual

14

Commissioning

It is highly recommended to have this equipment commissioned by a Flowtech approved engineer. Any
damage or loss incurred through incorrect commissioning by an unapproved engineer will not be covered by
the warranty.

Pre-Commissioning Checklist

The following conditions must be met before starting the commissioning process. Failure to meet these
conditions may result in injury or damage to the equipment, system and property.
Equipment is sited in a frost free area, away from precipitation and water sprays/jets
All necessary pipe/electrical connections have been made to a satisfactory standard
The temperature and pressure at the point of connection are within the operating limits of the pressurisation
unit.
The heating/cooling system is fitted with a safety valve and expansion vessel
The following conditions must be met for the pressurisation unit and heating/cooling system to function
correctly. If these conditions have not been met, it is not advisable to proceed with the commissioning
process.
The system connection has been made into the system return header/pump suction
There are no non-return valves, pressure reducing valves or RPZ valves installed between the pressurisation
unit and the heating/cooling system
The expansion vessel is pre-charged to the correct pressure (equal to fill pressure)
It is advisable to fill the heating/cooling system prior to commissioning. If this is not possible, the
pressurisation unit can be used to fill the system after commissioning. Depending on the size of the system,
this may take a considerable amount of time.
The heating/cooling system is filled and pressurised to the required cold fill pressure, with the water at
ambient temperature (approximately).