Nibe BA-SVM 10-200 User Manual

40 NIBE BA-SVM 10-200 Section 5 | Current circuit
5 Current circuit
Load monitor
The current sensors connects to AA3-X4: 1-4.
Function:
• If any of the internal phases exceed the set value
and the phase sequence is not detected, electri-
cal power is disconnected from one of the inter-
nal phases. Because the phase sequence is not
detected this can mean that the incorrect phase
sequence is disconnected, so that the output is
still too high. The heat pump continues by discon-
necting another phase, until the current does not
exceed the set value. If the current still exceeds
the set value when all internal phases are dis-
connected, the same process is performed for
external additional heat, if applicable and is set to
step-controlled additional heat.
CAUTION
Do not disconnect the external additional heat if it is
set to give additional heat in one step.
CAUTION
BA-SVM 10-200 must be filled with water before the
phase sequence is detected.
• If the phase sequence is detected the electrical
output is disconnected in the phase that exceeds
the set value. This will also handle any external
additional heat.
• If disconnecting the phases does not work, the
heat pump will finally disengage.
• Reconnection occurs when the current has fallen
to a value low enough to permit reconnection.
For the heat pump to disconnect the electrical output
in the correct phase, the phase sequence must have
been detected during the installation. In the menu
5.1.12 the phase sequence must be detected after-
wards. An unsuccessful detection may be due to the
current sensors not being correctly connected or that
other electrical equipment started or stopped during
detection.
Menu Name Factory settings
5.1.12 fuse size 16A
detect phase order
1-phase inverter stepping out:
Variant of load monitor designed to be used in in-
stances where 1-phase inverters are used.
Compressors together with 3-phase disconnectable
additional heat:
Load monitor initially disconnects the immersion
heater’s output. Finally the heat pump frequency is
reduced.
If this phase is used to run 1-phase inverter compres-
sor:
Initially, the step-controlled additional heat is discon-
nected from this phase as per the section above re-
garding disconnecting the step-controlled additional
heat.
If the electrical power still exceeds the set value the
compressor decrease speed with 20 Hz per 30 sec-
onds until the electrical power falls below the set val-
ue.

Nibe BA-SVM 10-200 Specifications

General

Brand	Nibe
Model	BA-SVM 10-200
Category	Air Conditioner
Language	English