
To angle out a connection:
1. Disconnect the pipe at the top connection.
2. Angle the pipe in the desired direction.
3. If necessary, cut the pipe to the desired length.
Connecting the brine side
႑Insulate all indoor brine pipes against condensation.
႑The level vessel must be installed as the highest point
in the brine system on the incoming pipe before the
brine pump (Alt. 1).
If the level vessel cannot be placed at the highest point
an expansion vessel must be used (Alt. 2).
NOTE
Note that condensation may drip from the level
vessel. Position the vessel so that this does not
harm other equipment.
႑Details of the antifreeze used must be shown on the
level vessel.
႑Install the supplied safety valve under the level vessel
as illustrated. The entire length of the overflow water
pipe from the safety valves must be inclined to prevent
water pockets and must also be frost proof.
႑Install shut off valves as close to the heat pump as
possible.
႑Fit the supplied particle filter on the incoming pipe.
In the case of connection to an open groundwater system,
an intermediate frost-protected circuit must be provided,
because of the risk of dirt and freezing in the evaporator.
This requires an extra heat exchanger.
P
XL6
XL7
Collector
Alt. 1 Alt. 2
Hot water heater
Connecting the hot water heater
႑Any docked hot water heater must be fitted with ne-
cessary set of valves.
႑The mixing valve must be installed if the setting is
changed so that the temperature can exceed 60 °C.
The setting is made in menu 5.1.1 (page 60)
႑The safety valve must have a maximum 10.0 bar
opening pressure and be installed on the incoming
domestic water line as illustrated. The entire length
of the overflow water pipe from the safety valves must
be inclined to prevent water pockets and must also
be frost proof.
T
Heating medium side
Connecting the climate system
A climate system is a system that regulates indoor comfort
with the help of the control system in F1145 and for ex-
ample radiators, underfloor heating/cooling, fan con-
vectors etc.
႑Install all required safety devices, shut-off valves (as
close to the heat pump as possible), and particle filter.
႑The safety valve must have a maximum 2.5 bar
opening pressure and be installed on the outgoing
heating medium as illustrated. The entire length of
the overflow water pipe from the safety valves must
be inclined to prevent water pockets and must also
be frost proof.
႑When connecting to a system with thermostats on
all radiators, a relief valve must be fitted, or some of
the thermostats must be removed to ensure sufficient
flow.
NIBE™ F1145Chapter 4 | Pipe connections14