Specifications include, but are not limited to: 1. Remove and dispose of the existing heat exchangers, storage tank and associated hot water delivery equipment. 2. Remove softener and replace with Marlo MRG-450-3 triple progressive softener system, pipe, electrical and associated equipment. 3. Temporary service of hot water supply will be required as hot water delivery down time shall not be allowed. 4. Demolish existing steam lines, condensate, pumps, traps, valves, manifold and piping and replace with new as shown on P1 thru P11 on the drawings. 5. Install 3 new Basco 2-pass u-tube heat exchangers or engineer approved equivalent and 1000 gallon low pressure, ASME, hot (minimum 190 degree F or above rated ) water storage tank. 6. Make sure all hot water circulating pumps and condensate pump systems are operating to manufacturer requirements and code standards. 7. Remove mixing valve and replace with Armstrong mixing valve (DRV80) or equivalent approved by Engineer. 8. All items of piping, valves, traps, pumps, accessories and labor whether specified in details or not but in the opinion of the A/E design are usual or necessary for the satisfactory completion of the installation of hot water delivery and storage systems and associated equipment shall form part of the Scope of Work.