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Instructions for installation and use
TD & S substations
Danfoss District Energy
VI.GP.U2.02
DKDHR
Maintenance plan (recommendations)
Service and maintenance procedures must only be performed by
trained, authorised personnel.
Please note that after dismantling, the gaskets
MuST
be replaced.
Once the system has been filled with water, retighten all the pipe
connections once more before performing pressure test for leaks.
After heating of the system, check all the connections and
retighten if necessary.
Please note that the connections may feature EPDM gaskets!
There-
fore, it is important that you DO NOT OVERTIGHTEN the pipe
connections.
Overtightening may result in leaks. Leaks caused by
over-tightening or failure to retighten connections are not covered
by the warranty.
Interval
Maintenance work
Comments
At least once a year
Check all connections for leaks.
If you identify a leak, replace the seal and retighten the pipe connections
Check that the safety valve on the cold water supply is
functioning correctly
Check the functionality by turning the lever on the safety valve
Check that all components are intact and functioning as
intended
In the event of irregularities, lack of functionality or visible faults and
defects in a component, replace the component in question
Clean all dirt filters/strainers in the substation
Replace any filters that are not intact
Check that any electrical cables are in serviceable condition,
and that it is possible to disconnect the electrical power sup-
ply to the substation
Visual check. Check whether it is possible to disconnect the current
to the substation
Check the pipes and exchanger for signs of corrosion
Visual check
Check that any insulation covers are functioning as intended
Check that the insulation fits tightly around the product
Check that the temperature regulators are set in accordance
with the instructions in this manual
Follow the instructions in the present manual
Check the functions of all shut-off valves
Check that the ball valves open and close as they should
