Commissioning And Adjusting; Preparations; Filling And Venting; Filling And Venting The Climate System - Nibe F1245 Installer Manual

6 Commissioning and adjusting

Preparations

1. Ensure that F1245 has not been damaged during
transport.
2. Check that the switch (SF1) is in position "
3. Check for water in the hot water heater and climate
system.
Caution
Check the miniature circuit-breaker and the
motor protection breakers. They may have
tripped during transportation.

Filling and venting

Caution
Insufficient venting can damage internal
components in F1245.

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
NOTE
Insufficient venting can cause damage to in-
ternal components.
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 the hot water heater
1. Open a hot water tap in the house.
NIBE™ F1245
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 brine system
NOTE
Insufficient venting can cause damage to the
brine pump.
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 °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
(accessory).
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.
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Chapter 6 | Commissioning and adjusting
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