Appointment of alternate members. The Board of Supervisors may appoint, by resolution, at least one, but no more than three, residents of the Township to serve as alternate members of the Zoning Hearing Board. The term of office of an alternate member shall be three years. When seated pursuant to the provisions of § 1601, Subsection 2, an alternate shall be entitled to participate in all proceedings and discussions of the Zoning Hearing Board to the same and full extent as provided by law for Zoning Hearing Board members, including specifically the right to cast a vote as a voting member during the proceedings, and shall have all the power and duties set forth in this chapter and as otherwise provided by law. Alternates shall hold no other office in the Township, including service as a member of the Planning Commission or as a Zoning Officer, nor shall any alternate be an employee of the Township. Any alternate may participate in any proceedings or discussion of the Zoning Hearing Board but shall not be entitled to vote as a member of the Zoning Hearing Board unless designated as a voting alternate member pursuant to § 1601, Subsection 2, of this chapter.