RED A10-UHE, Инструкция по установке и эксплуатации

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User’s Manual Code 001 Page 10-57 Rev 0819
10.3 Electrical connections
Electrical work should only be undertaken by a competent electrician and it is their
responsibility to ensure that that any work carried out is done so in accordance with the latest
regulations.
10.3.1 Immersion heater wiring
RED INC tanks are supplied with a 3kW immersion heater. The immersion heater should be
fully earthed and wired with suitable cable with a temperature resistance of at least 85°C.
The immersion heater is supplied with a combined regulation and high limit safety
thermostat, under no circumstances must the thermal cut out be bypassed. The immersion
heater should be wired through a double pole isolating switch with a contact separation of at
least 3mm in both poles. Care should be taken to ensure that each of the connections are
securely made and that the cables are protected from accidental disconnection via the strain
relief clamp / cable gland provided. Figure 30 provide guidance on how the immersion heater
should be wired. The immersion heater should never be switched on unless it is fully
submerged in water, dry operation of elements causes them to fail prematurely this mode of
failure is not covered under warranty.
Before removing any protective covers the power supply should be disconnected, secured
against unintentional restart and the fuse removed.
The following instructions must be read and understood prior to the commissioning of a INC
hot water storage tank. If under any circumstances there are aspects to the installation and
or system which do not comply with the specification laid down, the tank MUST NOT be put
into operation until the system and or installation meets all the requirements.
Unless otherwise instructed isolate all electrical supplies to the hot water storage tank before
carrying out commissioning of the unit.
NOTE: Before filling ensure the overflow pipe is connected correctly, free from blockages and
can discharge in a safe visible position.
Figure 30 Immersion heater wiring