heater

looking to buy a Raypak 014940 336000 BTU Cu-Ni heater from inyo pools.  currently have Raypak 266A that has crapped out.  Is the new Raypak the same hook up as the 266A?  from the schematics i saw online it should  slide in and line right up.  Also the motherboard /screen on my old heater is only 2 years old.  I was thinking of keeping it as long as it would fit the new.  Is this true?

bob Singer