Specifications include, but are not limited to: A. At Western Regional Jail and Correctional Facility, there are three (3) existing hot water heaters located in mechanical rooms A129, A144, and F129. The mechanical rooms are located on the exterior corners of pods A and F first floor. On the contract drawings, the three (3) hot water heaters are labeled as the following: A-pod mechanical room A129, GWH-1A, A-pod mechanical room A144, GWH-2A; and F-pod, mechanical room F129, GWH-1F. The contractor must remove the existing three (3) hot waters heaters, install three (3) new hot water heaters, install any required new domestic water piping, install any required new natural gas piping, and install any required new vent piping. Additional information on the project is listed below. B. A and F pods mechanical rooms, A129, A144, and F129 new hot water heater requirements: 1. The new hot water heaters must meet the following requirements and what is stated in specifications section 1.01(D) or equal: a. Must be a minimum storage of 215 gallons of water. b. The input must be a minimum Btu/h is 199,000 and 58 kW. c. The recovery rate from 40 to 120 degrees Fahrenheit in one hour must be at a minimum of 250 gallons. d. The working pressure (hydrostatic test) is 150 PSI and 1,034 kPa. e. Must operate off natural gas. f. The minimum inlet gas pressure is 4.5” WC / 1,121 Pa. g. The maximum inlet gas pressure is 10.5” WC / 2,616 Pa. h. The manifold gas pressure is 1.4” WC / 349 Pa. i. The hot water heater electric is 120 volts, single phase, 60 hertz, and 5 amps. j. Must be a minimum of 83% thermal efficiency. k. Must be a low NOx water heater. l. The hot water tank interior tank must be a duplex stainless-steel tank. C. New hot water heater requirements: 1. New hot water general required specifications: a) Contractor must meet the requirements listed in specifications section or equal to what was previously specified above in specifications section 1.01(B), subsection 1 in addition to what is listed below in the specifications. b) Manufacturers: 1) Available Manufacturers: Manufacturer shall be a company specializing in manufacturing the products specified in this section with minimum twenty years’ experience. The water heaters shall be manufactured by a company that has achieved certification to the ISO 9001Quality Management System.
