EL – Owner’s Manual – Rev.00 – September 2022 29
4.6.3 COOLING LOOP CONNECTION GUIDE (COOLING WATER IN/OUT)
For connecting the cooling loop of the liquid cooled electrolyser please consider the following
instructions. For air-cooled devices, these instructions are not relevant.
Flush all water pipes with clean water before connecting the device to ensure no debris is in the lines.
EL LC COOLING WATER IN and OUT
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 IN” and “COOLING 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. The device has built-in flow restrictors of 2 l/min which help to balance the
cooling liquid flow.
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