Oilon VSi 6-14, Installation And Operation Manual

Page: 18 / 74

If cooling units are added to the system to a height above the heat pump, install a
membrane expansion vessel in the system.
● Install a bleed port to the highest point in the system.
● The filling bottle needs to be taken out of use by closing the shut-off valve under the
bottle, see the piping diagrams provided with the heat pump.
2.6.3 Brine circuit and fill and bleed unit installation, VMi
Use special care when making the connections.
The heat pump case has openings for brine circuit pipes on the right side.
1. Connect the flexible flow (1) and return (2) hose to the appropriate ports, see the
figure.
Hoses, VMi ver. 1
Pos. Item
1 Flow
2 Return
3 Shut-off valve
2. Install a shut-off valve in the return line.
If cooling units are added to the system to a height above the heat pump, install a
membrane expansion vessel in the system.
● Install a bleed port to the highest point in the system.
● The filling bottle needs to be taken out of use by closing the shut-off valve under the
bottle, see the piping diagrams provided with the heat pump.
2.6.4 Filling and bleeding the brine circuit
Equipment and materials required:
● Mixing container, 60 liters
● Submersible pump with filter, pump head approximately 30 m
● Brine solution (water/ethanol mixture, 1:1, frost resistance: –16 °C
● Reinforced hose, 1" (2 pcs.), length approximately 3 m
● Connector, 3/4" (female, for reinforced hose, 1 pc; VSi only )
● Connector, 1" (female, for reinforced hose, 1 pc;
VSi only
)
● Connector, 1/2" (
VMi only
)
Before starting the process, check that the brine circuit has been appropriately
connected.
16 (70) M8011 2204EN