CTC Union EcoPart XL 424, Руководство по установке и обслуживанию

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CTC EcoPart XL
General
Topping up and bleeding
Mix water and antifreeze solution in an open vessel. Connect the hoses
to the shut-off valves (98a and 98b) as shown in the diagram. Connect a
powerful external pump (101) for filling and bleeding. Then reset the three-
way valve (100) and open the valves (98a and 98b) so that the brine passes
through the mixing vessel (102). Also make sure that the valve (98d) is open.
For brine pump start-up, see the relevant manual for the EcoPart control
system.
Allow the brine to circulate in the system for a long period of time until it is
completely free of air. There may still be pockets of air even if no air comes
out with the fluid. Reset the three-way valve (100) so that any remaining air
can come out.
Bleed the level vessel (96) by loosening the plug at the top of the level vessel.
Now close the valve (98a) while the filling pump is still running. The filling
pump (101) now pressurises the system. Also close the valve (98b) and turn
off the filling pump.
If the level in the level vessel is too low, close the valves (98c and 98d).
Unscrew the plug and fill the vessel to about 2/3 full. Screw the plug back in
and open the valves (98c and 98d).
Checking the brine system after installation
After a few days, you should check the fluid level in the vessel. Top up if
necessary and then close the valves (98c and 98d) when filling.
Expansion vessel
The vessel should be fitted to the incoming pipe from the bedrock or ground
source, at the system's highest point. Remember that the vessel can
produce condensate. 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 direction of flow. When cleaning
the filter, close the valves (98c and 100). Unscrew the filter cap and flush the
filter clean. When refitting, the pin under the filter holder should be pushed
into the designated hole in the filter housing. Top up with a little brine, if
necessary, before fitting the cap.
After a short period of operation, the filter should be checked and cleaned.
Brine
The brine circulates in a closed system. The fluid consists of water and
antifreeze solution. Ethanol is recommended, e.g. Svedol or Brineol. The
alcohol is mixed to a concentration slightly lower than 30%, which is
equivalent to fire risk class 2b and a freezing point of approx. -15°C.
You should allow for approx. 1 litre of ready-mixed brine per meter of
collector hose, i.e. approx. 0.3 litres of antifreeze solution will be needed per
metre of hose, for a hose diameter of 40 mm.
!
Check the dirt filter
once bleeding is
complete.
!
The fluid must be
mixed thoroughly
before the heat
pump is started.