Hxa Pumping Station Filling - Distilled Water (If Applicable) - Dimplex ESSW2 Owner's Manual

Commissioning
Figure 19
1
Closed for Filling/Flushing
3. Attach the Flush and Fill pumping system to
the Flush and Fill valve connections on the
pumping station (Figure 11H).
4. open Flush and Fill valves and pump a solution
of non-foaming detergent (i.e. TSp, mixed to
manufacturers directions) to flush the system of
any dirt or debris.
5. Flush the system with clean water to remove
any remaining solution or debris.
6. It is recommended that following the flush, 50
psi (3.4 bar) pressurized air to remove any
remaining water or washing solution from the
system.
CauTiOn: If substantial amounts of water are
left in the system the concentration of the heat
transfer fluid would be reduced and result in the
risk of freezing and possible system damage.
!
nOTE: During either the liquid cleaning or the
air purging it is recommended that a pressure test
be completed to ensure that there are no leaks
before filling with the heat transfer solution. If leaks
are present it is recommended that they are re-
paired and the system be retested, to ensure no
additional leaks are present.
CauTiOn: Wear all personal protective clothing
required by MSDS Sheets.
CauTiOn: Ensure that the Flush & Fill pumping
station has been thoroughly cleaned to ensure no
cross contamination or dilution of the heat transfer
24
2
Open Normal Operation
3
Closed for Pump Replacement
liquids.
7. using the chosen heat transfer liquid,
maximum heat absorption into the Heat Trans-
fer system (See Installation Section for specific
requirements) and the Flush & Fill pumping
station, fill the system.
8. using the flow meter to see, ensure that there
is no air in the system.
!
nOTE: Air will collect in the air separator (Figure
11K) during filling and should be purged, by open-
ing the purging valve to release the excess air.
9. Close the lower valve (Figure 11H) to start to
pressurize the system. once the system is filled
to a pressure of 29 psi (2 bar), close the inlet
valve (Figure 11H).
10. Switch off pump.
11. Install the provided insulating cover onto the
Solar pumping Station and any additional insu-
lation on associated piping.
12. Fill out and attach the provided label, indicating
the specifications of the solution, to the pump-
ing station.
!
nOTE: piping insulation should be a minimum
of R-4.2.
HXa Pumping Station Filling - Dis-
tilled Water (if applicable)
CauTiOn: Ensure that the piping and Flush
and Fill pumping station has been thoroughly
to ensure
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