Oilon ESi 6-17, Installation And Operation Manual

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Renovated buildings
Flush the building’s heating circuits thoroughly before connecting the ground source
heat pump. It is advisable to install a T strainer in each heating circuit.
2.6.5 Filling and bleeding the storage tank and the heating circuits
Keep the storage tank pressure below 1.5 bar throughout the filling
process. The manufacturer shall not be liable for any damage in the
event that the instructions presented below have not been followed.
Fill the storage tank with water through the fill valve unit included in the system. Before
filling, check that there is a bleed valve in the same branch as the fill valve unit.
Make
sure that air has an unobstructed path to escape during filling; relying only on
the bleed valve or a safety valve is not sufficient.
1. Open the heating circuit fill valve.
2. Fill the circuit with water.
3. Bleed the storage tank (and, if necessary, the condenser and desuperheater line)
and the heating circuit until all air has escaped.
4. Leave storage tank pressure to a level of 1–1.2 bar.
● Max. storage tank pressure: 1.5 bar. Check the pressure from the storage
tank’s type plate.
● Max. domestic hot water circuit pressure: 9 bar.
2.6.6 Domestic hot water connections
It is not allowed to install external radiators or driers in the domestic hot
water circuit.
Make the domestic hot water connections as indicated in the piping diagrams supplied
with the unit.
● To avoid burns, install a mixing valve in the domestic hot water flow line.
● Install a non-return valve upstream from the domestic cold water inlet.
Domestic hot water recirculation (optional)
If the building features a domestic hot water recirculation system and the system has
a high temperature loss, it is advisable to install a supplementary heater (such as an
ÄssäStream in-line heater or a 30-liter ÄssäStream storage tank) in the flow line.
Optional accessories
● Regulating valve
● Actuator for the regulating valve
● Water temperature regulation (feature)
18 (75) M8010 2204EN