Any bonds issued under this chapter shall be payable only from the revenues and receipts of the hospital or health center for the acquisition, establishment or construction of which the bonds were issued and from any property the commission has made subject to a lien to secure such bonds. The bonds and other obligations of the commission shall not be a debt of any locality or of the Commonwealth, and neither the commission members nor any person executing the bonds or other obligations shall be liable personally thereon by reason of the issuance thereof.