CTC Union EcoPart 400 230V 1N~, Руководство по установке и обслуживанию

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CTC EcoPart 400
General information
Post-installation check on brine system
After a few days, you must check the fluid level in the vessel. Fill if necessary
and close the valves (98c and 98d) when filling.
Level/expansion vessel
The level vessel should be fitted to the incoming line from the borehole or
ground loop, at the system’s highest point. Bear in mind that the tank can
produce condensate on its exterior. Fit the safety valve (105) as shown in the
schematic diagram and fit a suitable plug to the top of the vessel.
If the vessel cannot be fitted at the highest point, a closed expansion vessel
must be fitted.
Filling kit with dirt filter
Arrows on the valve housing indicate the flow direction. Close valves (98c
and 100) when cleaning the filter. Unscrew the filter cap and flush the filter
clean. When refitting, the pin under the filter holder should be fed into the
designated hole in the filter housing. Top up with a little brine, if necessary,
before fitting the cap.
The filter should be checked and cleaned after a short period of operation.
Brine
The brine circulates in a closed system. The fluid consists of water and
antifreeze solution. Sentinel R500 & R500C are recommended for use in the
brine circuit on all CTC EcoHeat/Part heat pumps. The glycol is mixed at a
concentration of slightly less than 30%, which is equivalent to fire risk class
2b and a freezing point of around –15 °C.
It is a CTC recommendation that around 1 litre of brine/glycol is required per
metre of collector hose, i.e. around 0.3 litres of antifreeze solution will be
needed per metre of hose, for a hose diameter of 40 mm.
Air pockets
To avoid air pockets, make sure that the collector hoses constantly rise
towards the heat pump. If this is not possible, it must be possible to bleed
the system at the high points. The filling pump usually manages smaller local
height discrepancies.
Checking brine difference
When the heat pump is running, regularly check that the temperature
difference between incoming and outgoing brine temperatures is not too
large. If there is a large difference, one of the causes may be due to air in
the system or a blocked filter. If this is the case, the heat pump triggers the
alarm.
The alarm factory setting is 7 °C, but 9 °C is permitted for the first 72 hours
while the compressor is running, as microbubbles in the system can reduce
brine flow.
!
Check the dirt filter
after bleeding has
been completed.
!
The fluid must be
thoroughly mixed
before the heat
pump is started.