Danfoss PK37 Quick Manual

Also see for P11K: Operating instructions

Contents

Danfoss PK37 Quick Manual Manual pdf 36 page image

Derating for high altitude, see 1.8 Special ConditionsSafety standards EN/IEC 61800-5-1, UL 508CEMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3EMC standards, ImmunityEN 61800-3, EN 61000-3-12, EN 61000-6-1/2, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN61000-4-5, EN 61000-4-61.9 Special Conditions1.9.1 Derating for Ambient Temperatureand Switching FrequencyThe ambient temperature measured over 24 hours shouldbe at least 5°C lower than the max. ambient temperature.If the frequency converter is operated at high ambienttemperature, the continuous output current should bedecreased. For derating curve, see Design Guide MG18C3YY.1.9.2 Derating for Low Air PressureThe cooling capability of air is decreased at low airpressure. For altitudes above 2000 m, please contactDanfoss regarding PELV. Below 1000 m altitude no de-rating is necessary, but above 1000 m the ambienttemperature or the maximum output current should bedecreased. Decrease the output by 1% per 100 m altitudeabove 1000 m or reduce the max. ambient temperature by1° per 200 m.Quick Guide VLT® HVAC Basic Drive Cascade Controller Quick GuideMG18F202 - VLT® is a registered Danfoss trademark 351 1

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