So let's say the HDB resale property price I am aiming for is $400K.
Can I wipe out my entire $130K (the full sum in my CPF OA), use another $100K in cash?
Then my down-payment is $230K.
The remaining $170K I take out a bank loan and the installments I pay out using CPF?
For bank loan, max will be 75% of purchase price/valuation (whichever is lower). For the downpayment, as long as you fulfilled at least 5% mandatory cash portion, the rest you can use CPF/cash.
I think most here are advising you not to empty your CPF as by keeping it in your OA, it earns you a higher interest of 2.5% compared to bank interest rates from 1.4%. Also, by putting in all your CPF, you will incur the "accrued interest" immediately. When you sell off your property in future, you have to pay back this accrued interest yourself.
As for your cash downpayment, if you do not have any investment plans tat generate higher yield, by all means pay down as much as you are comfortable.
Lastly, yes, you can use CPF to pay your monthly installments as long as you have sufficient CPF in your OA to deduct.