Questions about modine heater model#PA105AB

[Duramax junkie]

Picked up a used heater but have no instructions on it. Wondering if anybody has any info on these. Also have a few questions on venting

 

[warren57]

Google the model number and you should be able to get a manual. Should have the wiring diagram under the control box cover.

 

[Schwartzint1]

http://www.qcsupply.com/media/pdf/modine/HD_IOM_2013.pdf