Maintenance And Repairs; Maintenance Intervals; Maintenance Procedure - FLOWTECH flowpress Operation And Maintenance Manual

Maintenance and Repairs

Maintenance and repairs may only be carried out when the system is shut down or if the Flowpress
Direct is not required to monitor or operate. The power supply must remain off for the period of the
work.
The pressurisation equipment must be taken out of service and guarded against unintentional re-
starting until the maintenance work is finished. Note that the safety circuits and data transmissions
made whilst shutting down could trigger the safety chain or lead to false information to a connected
BMS. Existing instructions for the heating or cooling unit as a whole must be observed. To stop
hydraulic components, block the relevant sections and drain them using the available drain
connections, and relieve the pressure.
When restarting the system some logical errors may arouse that are self-acknowledging or required to
be manually acknowledged.
Improper use of the advanced features can result in a non-functional device. Only service engineers
should use the advanced features.

Maintenance Intervals

Due to variations in operating conditions, and the varying loads placed on pressurisation units, it is
not feasible to provide accurate predictions of component lifespan. The most effective method of
maintenance is to inspect the pressurisation unit for early signs of component failure and take action
accordingly.
Maintenance has to be executed by a Qualified Person, the maintenance protocol should be followed.
An digital service log can be filled out to store the information at time of Maintenance.
The following maintenance procedures should be performed at least once a year:

Maintenance Procedure

Maintenance procedure
1. Interrogate the controller alarm log to help direct the inspection. The log will show any
warnings or alarms that have occurred since first commissioning the unit.
2. Follow chapter 9.1: '' Shut down procedure'', then continue with the steps below.
3. Depressurise and drain the Flowpress Direct G4 unit.
4. Check the filter on the mains inlet for any debris. If needed, remove the filter with pliers,
rinse under the tap and place it back into the mains inlet side before continuing with the
following steps.
5. Check the valves and connections for any traces of leakage or malfunction.
6. Check the connections for any signs of corrosion.
7. Check the wiring for any signs of wear and tear. Signs of overheating, loose wiring, etc.
Any signs of damage requires a replacement of the wiring.
8. Follow the startup procedure in chapter 9.2: ''Restarting''
9. Check the controller for warnings and alarms and clear all before finishing maintenance.
10 Reset the maintenance date on the controller. To do so, Log in on the controller and clear
the maintenance warning in the warning screen. The maintenance date will then auto-
matically switch to the next required maintenance date.
5 Years after first commissioning, the Flowpress Direct G4 will need an annual service to reset the
reminders for the annual service. It is the end users responsibility to book the annual service to reset
the controller.
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