Ice vending machine cleaning?

[proxcl]

I received a call today from someone I've known for a number of years to meet with them to discuss pressure washing their ice machines for their ice vending business. It would end up being 19 machines within a reasonable distance, on a recurring basis. My current setup is a cold water 8gpm machine, 3000 psi, 250 gals buffer tank. Not sure I'm setup to take on this type of work. Would I need a hot water setup to quickly and efficiently clean these? I know that both mold and dirt needs to be cleaned off various parts of the machines.

[proxcl]

Nevermind, I feel really silly for even posting that. Went and looked at one of their machines last night, its a small painted metal sided building. Would pretty much be like washing a really small house. No need for heat.