(a) Thermal insulation shall be applied to heating and air conditioning system components where required to reduce thermal losses and to prevent surface condensation or to prevent excessive temperature changes in the air stream.
(b) Duct insulation shall be of material and rating as described in the Ohio Basic Building Code (Mechanical), Article 3 [OAC 4101:2-30], Section M.304.0 (refer to Appendix A). Insulation shall be applied per the manufacturer's recommendations. Ductwork insulation shall include a vapor barrier and be installed with complete integrity of seams and joints maintained by taping and adequate securing means.
(c) Hydronic piping and low pressure steam piping shall be insulated in accordance with the Ohio Basic Building Code (Mechanical), Article 7 [OAC 4101:2-38] (refer to Appendix A). Chilled water and glycol piping shall be insulated when the circulated fluid temperature will be sixty degrees Fahrenheit or below. All cold pipe fittings shall be insulated, and the insulation of pipes and fittings shall include vapor barrier jackets.
(d) Refrigerant suction piping shall be insulated with minimum three-eighths of an inch flexible foamed plastic or equivalent foamed fiberglass or rigid foam insulation. Seams and joints of the insulation shall be sealed and the integrity of the vapor barrier maintained throughout.
(e) Insulation shall have a flame spread rating of 25 or less and a smoke developed rating of 50 or less when tested in accordance with ASTM E84-1987 (refer to Appendix A).
(Ord. 1992-101. Passed 1-14-92.)