2. When filling the brine system, mix the water with
antifreeze in the filling pump’s mixing vessel (2). The
mixture should have freezing protection down to
approx. -15°C.
3. Place the filling pump in a convenient location in the
vicinity of the GreenMaster-HP to optimise user-
friendliness.
4. Connect the power supply.
5. Connect hose (3) to filler connection (XL27).
6. Connect hose (1) to filler connection (XL28).
7. Ensure that shut-off valve (QM34) is in the closed
position, in the right-hand position.
8. Open the valves for the filler connections (XL27) and
(XL28).
9. Start the filling pump by pressing the filling pump’s
(4) start button.
10. Vent the system by performing the activities in step
6-8 in chapter Flushing with water and cleaning,
page 33.
11. Start filling slowly by closing filler connection (XL28).
Check that the pressure is gradually increasing using
pressure gauge (BP6).
12. When the pressure reaches 2.5 bar, close the valves
for the filler connections (XL27) and (XL28) simultan-
eously.
13. Turn off the filling pump.
14. Check whether there is any air left in the coil. Open
the heat exchanger’s (EP16) vent valve (QM21) to
remove any remaining air.
15. Leave the system in this state for 30 minutes.
16. Check that the pressure level has not dropped and
proceed to the next step. A pressure drop in the
system may be due to a leak in the system. If leaks
are discovered, they must be repaired. Then follow
the above steps again.
17. Open shut-off valve (QM34).
18. Disconnect the hoses (3) and (1).
NOTE
Carefully disconnect the hoses to prevent
flooding.
19. Go through the start guide for the GreenMaster-HP
(see page 37), keep checking the pressure level at
regular intervals for at least 8 hours.
NOTE
Make sure that the brine system does not con-
tain air before it is started up.. Failure to prop-
erly vent the system may result in damage to
components.
Filling and venting heating medium system
Filling
1. Open the filling valve (external, not included in the
product). Fill the climate system with water.
2. Open the vent valve (external, not included in the
product).
3. When the water that exits the venting valve is not
mixed with air, close the valve. After a while the
pressure starts to rise.
4. Close the filling valve when the correct pressure is
obtained.
Venting
1. Vent GreenMaster-HP via a vent valve (external, not
included in the product) and other climate systems
via their respective vent valves.
2. Keep topping up and venting until all air has been
removed and the pressure is correct.
NOTE
Make sure that the heating medium system
contains no air, before start-up. Failure to
properly vent the system may result in damage
to components.
Post adjustment and venting
Pump adjustment, automatic operation
Brine side
The brine pump must run at the correct speed for the
correct flow in the brine system. GreenMaster-HP has a
brine pump that can be automatically controlled in
standard mode. Certain functions and accessories may
require that they are run manually and the correct speed
must then be set, see section Pump adjustment, manual
operation.
The automatic control occurs when the compressor is
running and it sets the speed of the brine pump to obtain
the optimal temperature difference between the supply
and return lines. For passive cooling operation, for ex-
ample, the brine pump must run at a set speed, which
is set in menu 5.1.9
Heating medium side
To set the correct flow in the heating medium system,
the heating medium pump must run at the correct speed.
GreenMaster-HP has a heating medium pump that can
be automatically controlled in standard mode. Certain
functions and accessories may require it to run manually
and the correct speed must then be set.
This automatic control occurs when the compressor is
running and sets the speed of the heating medium
pump, for the present operating mode, to obtain the
optimal temperature difference between the supply and
return lines. During heating operation, the set DOT (di-
mensioned outdoor temperature) and temperature dif-
ferential in menu 5.1.14 are used. If necessary, the max-
imum speed of the circulation pump can be limited in
menu 5.1.11.
35
Chapter 6 |
Commissioning and adjusting
GreenMaster-HP
