Most dehumidifiers are controlled by a simple and inexpensive relative humidity stat. The problem is that as the temperature in your arena changes, the humidistat will either run the unit too much (in a cold arena) or not enough (in a warm arena). The result is that your humidistat might be set to control the space on the warmest day. When the rink gets cold, the
dehumidifier runs too much and over dries the space. Knowing the space temperature allows you to set the humidistat for the relative humidity that solves the problem.
The chart below shows relative humidity set point corresponding to room temperature to achieve the preferred 35° F dewpoint. |
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Controlling dewpoint instead of relative humidity means that setpoint readjustment according
to temperature is not required, so the dehumidifier operates more precisely. We offer dewpoint conversion systems for a modest cost (around $1,200.00 not including installation)

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