Long story short, we have a Miller HF-P at work we've been wanting to put a foot pedal on. Called local welding supply to find out what we need and were told we couldn't use one on that model. Searched all over online to verify and cannot find anything that reinforces this statement. Looked through the owners manual and at the back it gives options and accessories for unit. RFC-23A is recommended foot pedal. Anyone have any definitive answers? Also, will any other foot pedals work for this unit? Thanks for your time in advance.