CTC Union EcoPart 425-435, Руководство по установке и обслуживанию

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22 CTC EcoPart i425-i435 Pro
General Information
Filling and venting
Mix water and antifreeze solution in an open vessel. Connect hoses to the
shut-off valves (98a and 98b) as shown in the figure. Connect a powerful
external pump (101) for refilling and bleeding. Then reset the three-way valve
(100) and open the valves (98a and 98b) so that the brine passes through
the mixing container (102). Also make sure that the valve (98d) is open.
For start-up of the brine pump, see the relevant manual for the EcoPart’s
controller.
Allow the brine to circulate in the system for a long period of time until it is
completely free of air. There could still be air in the system, even though
no air accompanies the liquid out. Reset the 3-way valve (100) so that any
remaining air can come out.
Bleed the level vessel (96) by loosening the plug on the top of the level
vessel.
Now close the valve (98a) while the filling pump continues to run. The filling
pump (101) now pressurises the system. Also close the valve (98b) and shut
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 around 2/3 full. Screw the plug back
in and open the valves (98c) and (98d).
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.
Expansion vessel/level vessel
The 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.
!
Check the dirt filter
after bleeding has
been completed.
!
The fluid must be
thoroughly mixed
before the heat
pump is started.