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SOLID AIR ® INTERNATIONAL
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T +31 598 36 12 21
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www.solid-air.com
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contact@solid-air.nl
7.2.4 Countercurrent plate heat exchanger
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The countercurrent plate heat exchanger is generally maintenance-free.
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Check the rotational direction of the bypass damper (Bypass, HR mode).
7.2.5 Quick heat-up (boost function)
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Check quick heat-up mode.
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Extract air is fed back directly into the room via the boost damper.
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In order to achieve the required set room temperature as quickly as possible, the air temperature is raised to a
maximum via a reheating coil.
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All outdoor air dampers and exhaust air dampers are completely closed.
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Extract air fan out of action.
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The supply air fan is running and delivers the required flow rate.
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When the set room temperature has been achieved, the unit switches to standard control mode.
7.3 Flow rate calculation
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The flow rate is calculated using the effective pressure method.
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Compare the static pressure upstream of the inlet nozzle with the static pressure in the inlet nozzle.
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The flow rate is calculated on the basis of the effective pressure Δp w (differential pressure of the two static pressures)
using the following equation:
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The doors must be closed to determine the correct flow rate.
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Feed the test houses to the outside (e.g. CPL-A through the exhaust air aperture, CPL-iH and CPL-iV through the base).
