Using air-to-air energy recovery equipment (AAERE) to pretreat fresh air can solve the problem of the application of dry coil condition.

In this paper, the characteristic of cleaning room in the electronic industry was expounded, dry coil and FFU cleaning air conditioning system was introduced, and air conditioning course was analyzed.

Epoxy cast dry-type distribution transformer high-voltage coil sealed by epoxy resin casting, using epoxy resin performance, cracking, high temperature, high mechanical strength, long life.