EL – Owner’s Manual – Rev.00 – September 2021 20
EL LC COOLING WATER
For the cooling of the device, Enapter recommends setting up a closed, non-pressurised cooling loop
using water or a water glycol mixture as cooling agent. At an external heat exchanger, the waste heat
can either be transferred to another medium for further use or be dissipated to the ambient by a fan.
A pump is needed to circulate the cooling agent.
The “COOLING H
2
O IN” and “COOLING H
2
O OUT” connectors are push-fit bulkheads, for an outside
pipe diameter of 10 mm. Connect the ports, located on the top of the front panel, to your cooling
circuit. When connecting several electrolysers to the same cooling loop, the electrolysers must be
connected in parallel. Enapter recommends to connect a maximum of five electrolysers (respectively
one cabinet) to the same cooling agent feed pipe in order to avoid high pressure drops and ensure
equal cooling water flow to the individual electrolyers. If the pump is sized accordingly, several cooling
agent feed pipes can be connected in parallel.
Enapter recommends to set up the
cooling loop according to the schematic
on the left. The return line should be
connected to a non-pressurised buffer
tank. This reduces back-pressure stresses
on the valve inside the device and will
prolong its lifetime. In case the waste heat
of the device will be used, a heat
exchanger for this purpose can be
integrated into this buffer tank. Connect
the pump downstream of the external
heat exchanger. When positioning it at a
lower part of the cooling circuit, gravity
can be used to feed the pump with water.
The cooling agent must be compatible with 1.4301 stainless steel and LLDPE, free of particles and be
usable at up to 60°C. Depending on the ambient temperature, a frost protection agent may need to
be added. To further increase device reliability, install the filter supplied by Enapter on the cooling line
inlet of the device.
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