Preparations
1.
Ensure that F1355 has not been damaged during
transport.
2.
Check that the switch (SF1) is in position " ".
3.
Check for water in any hot water heater and climate
system.
Caution
Check the miniature circuit-breaker. It may have
tripped during transport.
NOTE
Do not start F1355 if there is a risk that the
water in the system has frozen.
Filling and venting
FILLING AND VENTING THE CLIMATE
SYSTEM
Filling
1.
Open the filling valve (external, not included with
the product). Fill the climate system with water.
2.
Open the venting valve (external, not included with
the product).
3.
When the water that exits the venting valve is not
mixed with air, close the valve. After a while the
pressure starts to rise.
4.
Close the filling valve when the correct pressure is
obtained.
Venting
1.
Bleed F1355 via a vent valve (external, not included
in the product) and the rest of the climate system
via their dedicated vent valves.
2.
Keep topping up and venting until all air has been
removed and the pressure is correct.
NOTE
Make sure that the heating medium system
contains no air, before start-up. Failure to
properly vent the system may result in damage
to components.
FILLING AND VENTING THE BRINE SYSTEM
When filling the brine system, mix the water with anti-
freeze in an open container. The mixture should be
protected against freezing down to about -15 ｰC. The
brine is filled by connecting a filling pump.
1.
Check the brine system for leakage.
2.
Connect the filling pump and return line on the brine
system's service connections as shown in figure.
3.
Close the shut-off valve between the service con-
nections.
4.
Open the service connections.
5.
Start the filling pump.
6.
Fill and bleed the brine system until clear, air free,
liquid enters the return pipe.
7.
Close the service connections.
8.
Open the shut-off valve between the service con-
nections.
NOTE
Make sure that the brine system does not
contain air before it is started up.. Failure to
properly vent the system may result in damage
to components.
33Chapter 6 | Commissioning and adjustingNIBE F1355
6 Commissioning and adjusting
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