9kW Immersion Heater, Installation and Operating Instructions, Version 210512 2
When in operation, the heater and probe thermowell must be completely surrounded by the
medium to be heated. Thermally-conditioned flow must not be obstructed. What is known as
“dry operation” of the heating system is to be ruled out.
The installation position is solely horizontal. A collar of a suitable thread size (G1 ½") must be
provided or fitting is done with a counter nut that is not supplied. Before the installation collar,
a space of “installation length +150 mm” is to be kept free for installation and servicing.
The unheated length of the immersion heater is 130mm from the sealing surface. Make sure
that this is longer than the length of the installation collar.
Before any work on the equipment, the heater is to be disconnected from the power.
The ambient temperature on the housing must not exceed 35°C.
The minimum capacity of the water tank is 200l. The heating power must be adjusted to the
volume of the medium to be heated. The user is responsible for correct selection. The specified
surface load must be observed. As appropriate, you must consult the manufacturer before the
equipment is put into operation.
Immersion heaters are designed for max. 10 bar overpressure.
When using the immersion heater in a water heater with heat exchanger installed, the
temperature introduced by the heat exchanger must be limited to 90°C, as otherwise the
thermal cut-out of the immersion heater is triggered.
Exclusion of Liability and Guarantee
A liability and warranty exclusion applies to:
Any damage or injury caused by improper handling or failure to observe the safety-,
assembly and operating instructions
consequential damages
Unauthorized remodelling, disassembly or other interventions in the device,
modification of the product
Damage caused by calcium deposits on heating element.
Damage caused by corrosion at heating element
Installation
The applicable VDE standards and regulations, and the directives applicable in the use case are
to be complied with.
1. Install immersion heater with supplied flat seal in flat collar and/or seal with hemp,
PTFE or similar. If no collar is present, it can also be installed with a counter nut.
Open-ended wrenches of a suitable size are to be used. Installation using pliers or
similar is not permitted.
2. Opening the housing by undoing the four screws. The connection cable must be
introduced by the supplied cable gland into the connection space of the immersion
heater. Ensure there is sufficient space around the connection cable.
3. Restore electrical connection (see circuit diagram), ensure correct connection voltage.
Before commissioning, the complete circuitry is to be checked according to the circuit
diagram.
4. After the electrical connection has been made, the housing must be closed again. The
housing seals must neither be misaligned nor damaged. Original screws with washers
must be used. A leak caused by improper installation is not covered by the guarantee.