Nibe AirSite GreenMaster-HP 12 Series, Руководство по установке

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Optional connections
Load monitor
Integrated load monitor
GreenMaster-HP is equipped with a simple form of integ-
rated load monitor, which limits the power steps for the
electric additional heat by calculating whether future
power steps can be connected to the relevant phase
without exceeding the specified main fuse. If the current
would exceed the specified main fuse, the power step
is not permitted. The size of the property’s main fuse is
specified in menu 5.1.12.
Load monitor with current sensor
When many power-consuming products are connected
in the property at the same time as the electric additional
heat is operating, there is a risk of the property’s main
fuses tripping. GreenMaster-HP is equipped with a load
monitor which, with the aid of a current sensor, controls
the power steps for the electric additional heat by redis-
tributing the power between the different phases or by
disengaging the electric additional heat in event of an
overload in a phase. If the overload remains despite the
electric additional heat being disengaged, the com-
pressor winds down. Reconnection occurs when the
other current consumption drops.
Caution
Activate phase detection in menu 5.1.12 for
full functionality, if current sensors are installed.
Connecting current sensors
A current sensor should be installed on each incoming
phase conductor in to the distribution box to measure
the current. The distribution box is an appropriate install-
ation point.
Connect the current sensors to a multi-core cable in an
enclosure directly adjacent to the electrical distribution
unit. The multi-core cable between the enclosure and
GreenMaster-HP must have a cable area of at least 0.5
mm².
Connect the cable to the input board (AA3) on terminal
block X4:1-4 where X4:1 is the common terminal block
for the three current sensors.
L PEN
1
L
2
L
3
GreenMaster-HP
Electrical distribution
unit
-T3
-T2
-T1
4
3
2
1
AA3-X4
Reversing valves
GreenMaster-HP can be supplemented with an external
reversing valve (QN10) for hot water control (see page
44 for accessory).
Connect the external reversing valve (QN10) to terminal
block AA2-X4:2 (N), AA2-X4:3 (operation) and AA2-X4:4
(L) as illustrated.
Externt
N
L
2 3 4
K
1
GreenMaster-HP
QN10
AA2-X4
External
GreenMaster-HP Chapter 5 | Electrical connections 26