All electrical aspects of the installation should be undertaken by a qualified electrician.
Note that for safety, the pump and sensor connections should always be wired prior
to connecting power to the solar control panel.
IMPORTANT
The solar control panel must have a permanent electrical power supply
which must not be interrupted either manually or with a time switch. If the permanent
electrical supply to the building is to be switched off for any period of time, the solar
collector(s) should either be covered, or the system drained. In order to protect the
normal operation of the control panel, it should be located at least 100 mm from in-
sulated pipes which may become hot during operation. Control panels use PT1000
sensors containing twin core copper cable with a 0.75mm cross section. The sen-
sors supplied are 1.5 metres in length. Sensor cables can be extended with twin core
copper cable of 0.75mm diameter up to 50 metres and 1.50mm diameter between
50-100m. Screened cable should be used on the sensor cables to prevent RFI from
electrical cables. All connections to extend the cables should be housed in a junction
box for protection. The following diagrams show the connection of the solar pump
and other relays on the Joule range of controllers. This should be read in conjunction
with the Installation and Operation Manual supplied with each Joule control panel.
Electrical Solar Controller
46
Содержание Navitas In-roof
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