Commissioning And Adjusting; Preparations; Filling And Venting The Collector System; Filling And Venting The Heating Medium System - OEM DC BWA-SS-7 Installation And Maintenance Instructions Manual

Preparations

Before starting up the system, check that the heating,
collector and hot water circuits are full and thoroughly
vented. Check the pipe system for leakage.
Filling and venting
the collector system
When filling the brine system mix the water with
antifreeze in an open container. The mixture should
be protected against freezing down to about -15 °C.
The brine is filled by connecting a filling pump.
1. Check the brine system for leakage.
2. Connect the filling pump and return line on the
brine's system's service connections as shown in
figure.
3. Close the valve under the level vessel.
4. Close the valve between the service connections.
5. Open the valves on the service connections.
6. Start the filling pump, and fill until there is fluid in
the return pipe.
7. Press the power ON botton on the control panel.
and start the heating medium pump.
8. The filling pump and the heat pump's brine pump
are now operational.
The fluid should circulate via the mixing container
until it emerges from the return hose without being
mixed with air.
9. Stop the filling pump and clean the particle filter.
10. Start the filling pump, open the valve between the
service connections.
11. Close the valve on the service connection's return
line. Now pressurise the system (to max 3 bar)
with the filling pump.
12. Close the valve on the service connection closest
to the level vessel.
13. Stop the filling pump.
14. Fill the level vessel with liquid up to around 2/3.
15. Open the valve below the level vessel.
16. Select the auto operating mode using the
operating mode button.
Filling and venting the
heating medium system
1. Check the heating medium system for leakage.
2. Connect the filling pump and return line on the
heating system's service connections as shown in
figure.
3. Close the valve between the service connections.
4. Open the valves on the service connections(AV1,AV2).
5. Pushing the white manual lever down to bottom
(this has already been done when the machine leaves
factory), then three way valve's water tank port is closed
room heat port is open (the "A" port).
(the "B" port),
6. Start the filling pump, and fill until there is fluid in
the return pipe.
7. Open up Power ON from control panel to start machine,
then heat medium water pump is running, the valve will
return to the up position when power is restored.
8. Firmly pushing the white manual lever down to midway and in.
in this position both the 'A' and 'B' ports are open.
9. The filling pump and the heating medium pump
are now operational. The fluid should circulate via

Commissioning and adjusting

the container with tap water until it emerges from
the return hose without being mixed with air.
10. Stop machine, heat medium water pump stop running.
Depressing the white manual lever lightly and then
pulling the lever out, pushing the while manual lever
down to bottom position, and then "A" port open,
"B" port is closed.
11. Stop the filling pump and clean the particle filter.
12. Start the filling pump, open the valve between the
service connections.
13. Close the valve on the service connection's return
line. Now pressurise the system (to max 3 bar)
with the filling pump.
14. Close the valve (AV2) on the service connection.
15. Stop the filling pump.
16. Select the auto operating mode using the
operating mode button.
SAV
NK
Brine (KB) in
SF
AV
Closes
AV
AVT
Brine (KB) out
AV
BK / JK
AVT Draining
SAV Safety valve
CW Cold water
NK Level vessel

Internal air vent valve, brine

30
18
AV1
Closes
AV
AVT
AV2
SF
SAV
SF Particle filter
BK Rock collector
JK Soil collector
HW Hot water