Ochsner Air Eagle 414, Operating And Installation Manual

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BA_OCHSNER AIR EAGLE_414_717_V06_EN.docx Page 34 of 76
6.4 PSU signal contact
CAUTION!
There is a 230 VAC control voltage
present on the PSU signal contact!
Figure 46: PSU signal contact
Remove the jumper and insert cables as shown in
the drawing. If the PSU signal contact is
interrupted, the compressor and the booster
heater (if installed) will immediately shut down.
6.5 Uninterrupted tariff
In the case of tariff switching without interrupted
power supply, the heat pump is temporarily shut
down by the power supply utility. The PSU signal
contact on the EAGLE indoor unit (terminal
strip X3) should be used for this. To enable the
function, remove the jumper and connect the
cables.
6.6 Shutdown by tariff contactor
In case of shutdown by a tariff contactor (sealed
by the PSU, installed on site), the heat pump
compressor power supply is disconnected. In this
case, the PSU signal contact must be switched via
an auxiliary contact on the tariff contactor
(N/C contact) (otherwise ERROR).
6.7 Night tariff
Where tariff switching takes place within the
meter (night tariff), the PSU signal contact is not
connected.
6.8 Modbus wiring
A Modbus connection is required between the
EAGLE outdoor and indoor units. Communication
between the bus subscribers requires a twisted
cable. Cables of type
Y(ST)Y 2x2x0.8 mm² have
proved to be suitable .
CAUTION!
Always use a twisted wire pair.
MODBUS = A/B
eBus = SIGNAL/GND
Do not connect GND to the screen!
6.9 Sensor wiring
Never apply voltage to the sensor
terminals! This would destroy the
controller.
The type NTC5K temperature sensors of the OTE
controller are supplied with a cable length of
4.0 m. If this length is not sufficient, the leads can
be extended to the required dimension. Please
use 2x 1.0 mm² flexible cable.
During installation of the sensor cable, ensure that
the cable is not routed parallel to cables with
AC voltage >230 VAC.
Outdoor sensor TA
Install the outdoor sensor of the controller at a
height of approx. 2.5 m on the outside of the
building wall (facing north-west). Make sure that
the outdoor sensor is not exposed to direct
sunlight or wind, as this will impair the control
characteristics. Also avoid positioning it close to
the evaporator. There may be a risk of influence
on the control.
Mixer sensor TMK
If a mixer circuit is installed in addition to the
direct heating circuit, a mixer sensor must be
installed. The mixer sensor is a contact sensor and
is supplied with the heat pump including a band
clamp and heat conducting paste. Install the mixer
sensor directly downstream of the mixer circuit
pump. When using multi-skin or plastic pipes,
provide a suitable large metal bridge.
Remove jumper
230 VAC