Ochsner AIR 80 C13A, Operating And Installation Instructions

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BA_AIR_80_C13A_AIR_80_C22A_OTE3_SW5x_EN_V07.docx Page 19 of 68
All cables/wiring must be suitable for laying in
free air and also UV protected. Should operation
in star-delta switching be necessary, the operat-
ing currents and especially the settings on the
motor protection relay are to be taking into con-
sideration.
An E-rod as function protection is to be supplied
via a separate all-pole switching circuit breaker
(at best with an additional own leakage current
switch).
If an AIR 80 heat pump is installed, the fans of the
VHS 80 evaporator must be wired on site (see
Chapter 9.15)
4.9.4 Sensor wiring
NOTE
Should the minimum clearances be-
tween sensor wiring and 230V/400V
given in Table 1 not be able to be ad-
hered to, sheathed wiring is to be
used.
OCHSNER accepts no liability for de-
fects on controls which are the result
of incorrect laying/wiring (induc-
tion/electric emission, etc.).
Do not place line voltage on the sensor
terminals! The control will otherwise
be destroyed.
De-icing sensor (TQA , TQE) with AIR 80 C13A:
Two de-icing sensors are to be installed in the fin
package of the evaporator (see Chapter 9.9). A 4-
pole cable is to be run from the inside unit to the
evaporator. The sensors are then fixed together
with the 4-pole cable in a moisture-protected
terminal box (not supplied) (see Chapter 9.15).
De-icing sensor (TQA , TQE) with AIR 80 C22A:
With the AIR 80 C22A, the de-icing sensors are
factory-fitted in both evaporators (VHS-M 80). A
TQE-de-icing sensor and a TQA-de-icing sensor
are needed for the control (see Chapter 11).
External temperature sensor (TA):
The outside sensor ( TA ) is to be mounted at ca.
2.5 m height on the outside wall of the building
(north-west side). It is to be ensured that the
outside sensor is not directly affected by sun's
radiation or by wind, as this will adversely affect
the control behaviour.
NOTE
Do not fix the sensor housing to the
evaporator housing or in the exhaust
air flow.
Buffer sensors (TPO, TPM)
A minimum of 2 immersion sensors are to be
installed in the sleeves in the buffer tank. 2 buffer
sensors are to be used:
-
Top buffer sensor (TPO)
-
Middle buffer sensor (TPM)
The heat pump is switched on with TPO and
switched off with TPM.
Hot water sensor TB
The hot water sensor (TB) is packed in the heat
pump on delivery. The sensor should be placed in
the bottom third of the tank, maximum in the
middle. OCHSNER hot water tanks are fitted with
corresponding sleeves for the installation.
NOTE
In order to measure the temperature
correctly, the hot water sensor must
reach past the insulation into the inte-
rior of the tank.
Mixer sensor TMK
If a mixing circuit is installed in addition to the
direct heating circuit, a mixing valve sensor must
also be installed. The mixing valve sensor (
TMK ) is
supplied as a contact sensor with band clamp and
conductive paste. The mixer sensor is to be
mounted directly upstream of the mixing circuit
pump onto (metallic) pipework material with
good thermal conductivity.