Need installation help and documentation for Hupp diesel heater

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I am trying to install a Hupp Perfection heater.   Model MF 500 AM  30,000 BTU's 24 volts.   

It has a mil spec 5 pin connector.   Does anyone have any experience with this air to air heater.

Thanks

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I can take a picture of the unit, anyone have any info or advice.

[makemineatwostroke]

O; have you tired Maradyne at 216-265-8006 they own the rights to Hupp   

have a great day