Alfa Laval Mini City
Installation and operating
9
EN
Filling up and bleeding the heating circuit
2.6.2
•
Attach the long provided filing hose between the filling valves, to fill up the heating
circuit.
•
Open the valves
Heating circuit supply
and
Heating circuit return
.
•
Open the filling valves.
•
Fill up the system until the manometer shows 1,6 Bar.
•
Close the filling valves.
•
Bleed the heating system via the draining valves and at the heating systems draining
places e.g. radiator valves.
•
If the pressure is low after bleeding the system, open the filling valves and fill up to
1,6 Bar again.
•
The first time the heating system is filled up, this procedure might have to be
repeated several times.
•
When the pressure is correct and the heating system is drained from air, remove the
filing hose.
Connecting to heating network
2.6.3
•
Open the valves
Heating network media, supply
and
Heating network media, return.
Start with supply then return.
•
When all water connections are done and all circuits are pressurized, look for leaks.
•
If connections need retightening after the installation has been taken into service, the
system must be depressurised. If the system is not depressurised, gaskets will be
damaged.
Connecting the electrical equipment
2.7
•
Remove the lid that covers the connection box and loosen the connection box from
the insulation.
1
Outdoor temperature sensor
2
Room thermostat
3
Supply temperature sensor
4
Actuator, heating
•
Install the room thermostat; see
2.11 Installing the room thermostat
•
Connect the non-polarity cable, from room thermostat to the connection box.
Carefully press the cable into the trail in the insulation.