Oilon ESi 6-17, Installation And Operation Manual

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● 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 fill and bleed unit, 2 pcs,
ESi only
)
Before starting the process, check that the brine circuit has been appropriately
connected.
Fill and bleed unit ver. 1
Pos. Item
1
Rearmost shut-off valve (brine circuit
connection)
2
Foremost shut-off valve (brine circuit
connection)
3 Foremost ball valve (filling connection)
3a Expansion vessel port
4 Rearmost ball valve (filling connection)
5 T strainer
1. EMi and ELi: assemble the fill and bleed unit from individual valves.
In ESi heat pumps, the necessary valves are provided as an integrated unit.
2. Check that the foremost shut-off valve (2) in the unit is open.
3. Connect a reinforced hose between the foremost ball valve (3) and the submersible
pump. Open the ball valve (3).
4. Connect a reinforced hose between the rearmost ball valve (4) and the mixing
container. Open the valve (4).
5. Fill the mixing container with brine solution.
6. To bleed the filling hoses, open the rearmost shut-off valve (1) and start the pump.
Once the hoses have been bled, close the rearmost shut-off valve (1). This
allows the brine to circulate in the actual brine circuit.
7. Keep adding brine until the circuit has been filled.*
8. Leave the pump on, until the fluid is clear and no gurgling can be heard from the
pipes.
● Bleed the evaporator through the bleed nipple in the pipe between the brine
circuit and the evaporator.
● To ensure no air bubbles are left in the system and to avoid malfunctions
during startup, it is advisable to continue circulation for several hours.
9. Open the rearmost shut-off valve (1).
10. Close both ball valves (3 and 4).
Make sure that no pressure is left in the circuit.
11. Remove the fill hoses.
12. Screw the expansion vessel onto the port on top of the foremost ball valve (3a).
13. Remove the safety valve on top of the expansion vessel.
14. Fill the expansion vessel 3/4 full with brine solution.
15. Reinstall the safety valve in the expansion vessel.
16. Open the foremost ball valve (3) in the fill and bleed unit.
17. Close the shut-off valves with red handles (1 and 2) and the valve below the filling
bottle (if present). Remove and clean the mesh in the T strainer (5). Repeat, until
the strainer remains clean.
16 (75) M8010 2204EN