47
insTallaTion
Solar Thermal -
Installation and Servicing
SOLAR CONTROLLER
1.
The cable can be fed through the underside of the controller
or back panel of the housing depending on the installation.
2.
The cable entry in the housing tray must first be cut out to
insert the cable from the underside of the controller.
3.
Each cable inlet requires 2 vertical incisions in the wall of
the plastic tray. A cable knife or an electrician’s side cutting
pliers can be used as a cutting tool.
4.
Flexible wiring must be secured in the controller with the
attached strain relief clamps.
5.
If the controller must be wired through the back panel of the
housing tray, the punch out holes can be used for the cable
entry. For this, an external strain relief is provided.
43 iDeal solar conTroller - connecTions
Warning. THe connecTion WorK DescribeD
Here is only possible WHen THe conTroller
’
s
fronT cover is open. DisconnecT THe mains! all
applicable insTrucTions for WorKing on THe
mains musT be observeD! THe mains may firsT be
sWiTcHeD on WHen THe conTroller Housing is
closeD. in aDDiTion, THe insTaller musT ensure
noT To infringe THe ip Degree of proTecTion
WHen insTalling THe conTroller.
The mains, pump and sensor connections must be connected
according to the terminal plan below. If an Earth conductor is
intended or required for the pump, the Earth conductor must be
connected. The corresponding Earth conductor wire terminals
are provided. Ensure that the ground contact is also connected
to the controller’s mains supply side.
sol8573
Cut out cable entry
2
1
5
sol8574
Actuating the
terminal clamp
sol8575
Each clamp may only be allocated one connecting cable (up to 2.5mm
2
). Connector sleeves must be used with finely stranded
cables.
Temperature sensor
Warning. only
the original sensors permitted for the controller may be used. This is the PT1000 sensor type. Temperature sensors
and silicon cables are heat resistant up to +180°C. The polarity of the sensor contacts is irrelevant. All sensor leads are low voltage
and must be installed separately from the 230V or 430V lead sensors to prevent any inductive interference (at least 100mm apart).
If external inductive interference is to be expected, e.g. by heavy current cables, contact wires, transformer stations, radios and
television sets, amateur radio stations, microwave devices or similar devices, the conducting cables carrying the measuring signal
must be shielded. The sensor cable can be extended to a length of approximately 100m. Use cable of cross section 0.75mm
2
up
to 50m in length and 1.5mm
2
up to 100m in length.
sol8576
Earth wire connection
solar circuit's pump
Output
Solar circuit's pump
Collector
temperature sensor
Storage tank temp.
sensor below
Storage tank temp.
sensor above
(optional
Mains voltage
230 V
PE
L N
207786-2.indd 47
16/02/2012 11:26:24
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