Up to two (2) bayonet style immersion heaters can be installed in Ariel frames. The installation dimensions for the heaters are contained in the frame outline drawing notes.

The watt density of the oil heaters must be low enough to avoid “coking” the crankcase oil, 15 watts per square inch maximum. The oil heater should be interlocked with the compressor instrumentation panel to function only when an oil circulation pump is operating. Refer to the Ariel Packager Standards Section 6.0 for recommendations on heater watt density.