Oilon ESi 6-17, Installation And Operation Manual

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Note that if the valves are open, brine will be pushed out of the circuit.
18. Finish by making sure that both of the shut-off valves (1 and 2) are open.
*You can use the heat pump’s brine circuit pump to speed up the bleed process.
1. Make sure that the motor protection circuit breaker (QM1) has been disabled.
2. Make sure that the submersible pump and the unit’s internal brine pump rotate in the same
direction.
3. Turn the main switch (Q1) and control power switch (F10) to the ON position.
4. In the ÄssäControl Maintenance menu, select Manual control. Activate manual control, and select
Brine 1 On.
Once complete, disable manual control and return the switches and breakers to their original positions.
2.6.3 Connecting the heat pump to a storage tank
1. Connect the storage tank to the heat pump as indicated in the piping diagrams
supplied with the unit.
For the location of the appropriate ports on top of the heat pump, see section
HVAC installation
.
2. If you connect the desuperheater circuit, change the desuperheater settings in the
Maintenance menu (Super heat circuit control).
For the relevant factory settings, refer to chapter
Technical data
.
3. If connecting several heat pumps to one storage tank, install a non-return valve and
a control valve for each heat pump.
2.6.4 Heating circuit connections
Make the heating circuit connections as indicated in the piping diagrams supplied with
the unit. Make all heating connections through the heating circuits, not through the
domestic hot water connection. This includes connections to heated towel racks and
duct heaters.
Storage tank fill valve unit
Install a bleed valve in the same branch as the fill valve unit. This branch may also
include an expansion tank.
Heating circuits
Heating circuit 1 (HD1) is the primary heating circuit, and should be reserved for
spaces where a higher flow temperature is required (such as for radiator heating in
living spaces). In case of a compressor malfunction the heat pump’s electric immersion
heater will be able to heat HD1 more efficiently.
Heating circuits 2 (HD2) and 3 (HD3) are optional secondary circuits. In radiator-
heated buildings, HD2 can be used as a supplementary floor heating circuit or a circuit
reserved for a different zone, such as wet areas.
Heating circuits can be regulated individually. Each circuit can also be disconnected
individually. As an example, you can switch off the heating in living spaces for the
summer, but leave the heating on in wet areas.
M8010 2204EN 17 (75)