Refer to Section 182 of the Strata Schemes Management Act 2015 (NSW) to see what kinds of records you can view and how to make a request.
Schedule 4 Fees in the Strata Schemes Management Regulation 2016 says that the owners corporation can charge $31 for the first hour of records inspection and then $16 per half hour or part half hour after the first hour of inspection. The owner bears the costs of making copies.
The Act describes making requests to the “owners corporation”. Perhaps a request to the strata manager is different?