"John Hastings" wrote
Setting up the books correctly is an important step that results in eons of not having to deal with the initial errors you can make in putting an accounting system together.
The cash contributed should result in a debit to the bank account and a credit to partner's equity.
He shouldn't look at it as a loan, although he can take it out at some later date, he'll not get interest on his contributions amount as he would if he loaned the money to the business.
You may want to track the equity contributions, as well as withdrawals, per partner, for basis purposes.