Preparations
1.
Check that the switch (SF1) is in position " ".
2.
Check that the temperature limiter FD1 has not
tripped.
3.
Check for water in the hot water heater and climate
system.
Caution
Check the temperature limiter, motor protection
and miniature circuit-breaker. They may have
tripped during transportation.
Filling and venting
Filling the hot water heater
1.
Open a hot water tap in the house.
2.
Fill the hot water heater through the cold water
connection (XL3).
3.
When the water that comes out of the hot water tap
is no longer mixed with air, the water heater is full
and the tap can be closed.
Filling and venting the climate system
Filling
1.
Open the filling valve (external, not included with the
product). Fill the coil in the hot water heater and the
rest of the climate system with water.
2.
Open the venting valve (QM22).
3.
When the water that exits the venting valve (QM22)
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 the heat pump via the bleed valve (QM22) and
the rest of the climate system via the relevant bleed
valves.
2.
Keep topping up and venting until all air has been
removed and the pressure is correct.
TIP
If the heating medium pump (GP1) must be run
during venting, it can be started via the start
guide.
NOTE
The pipe from the coil in the container must be
drained of water before air can be released. This
means that the system is not necessarily vented
despite the flow of water when the venting valve
(QM22) is opened.
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 pro-
tected against freezing down to about -15 °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 filler connector as illustrated.
3.
If alternative 1 (level vessel) is used, close the valve
under the level vessel (CM2).
4.
Close the three way valve in the filler connector (ac-
cessory).
5.
Open the valves on the filler connector.
6.
Start the filling pump.
7.
Fill until liquid enters the return pipe.
8.
Vent the brine system with venting valve on F1245.
9.
Close the valves on the filler connector.
10.
Open the three way valve in the filler connector.
11.
If alternative 1 (level vessel) is used, open the valve
under the level vessel (CM2).
TIP
If the brine pump (GP2) must be run during
venting, it can be started via the start guide.
27Chapter 6 | Commissioning and adjustingNIBE™ F1245
6 Commissioning and adjusting
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