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Electrical connections are to be realised with screw terminals (single wire / fine wire, max. 1.5 mm²).
The mains supply’s protective earth connector is to be connected to the 5-pole terminal block (
).
Protective earth connection of loads (pumps etc.) is to be realised at the 5-pole terminal block provided for this
purpose. In so doing, it must be ensured that the mains supply’s protective earth connector is also connected
to this terminal block. Each terminal may only be connected to one connecting wire.
Adequate strain relief must be ensured!
Only use the Pt1000 temperature sensors approved for use with the controller. All cables which carry low
voltage (e.g. sensor cables) are to be routed in such a way that they are kept separate from cables which
carry mains voltage.
The polarity of the sensor cables is arbitrary.
!
Note!
Only safety extra-low voltage may be connected with the low-voltage relay (NVR). Safety extra-low
voltage is not to be connected with the relays on the high-voltage side (R1 to R4).
After the electrical connection work, replace the terminal cover.
5.8.
Installing the collector sensor and storage reservoir sensor
!
Note!
Do not route sensor cables together with cables which carry more than 50 V (low voltage)!
Shield sensor cables sufficiently.
Thermally insulate sensors and piping.
Installing the collector sensor:
Insert the collector sensor into the provided opening on the collector array and fasten it in place (refer to the
installation instructions from the collector manufacturer).
Installing the storage reservoir sensor:
Insert the storage reservoir sensor into the provided opening at the storage reservoir and fasten it in place
(refer to the installation instructions from the storage reservoir manufacturer).
Sensor cables can be extended to a maximum length of 100 m.
!
Note!
As temperatures of up to + 90 °C arise in the domestic water storage reservoir, a thermal hot water
mixer must be installed (German Heating Installation Regulation HeizAnlV § 8 para. 2)!
In order to protect the storage reservoir from high temperatures, or to limit loading to the storage
reservoir’s maximum temperature, the collector safety function (KSF) can be set to “no” on the
operating level E3-6 / 2.
5.9.
Dismantling and disposal
DANGER
Danger of electrocution!
Disconnect the controller from the power supply before dismantling!
Ensure that it cannot be reactivated!
To dismantle the controller, follow the installation instructions in reverse order.
Disposal must comply with the German Electrical and Electronic Equipment Act (ElektroG), which
governs the sale, return and environmentally sound disposal of electrical and electronic
equipment.
Installing and connecting the controller
Summary of Contents for LATHERM SOL MAXIMAL
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