ADDENDUM NO. 2 CITY OF SAN ANTONIO CAPITAL ...

HVAC Upgrades – International Center AAI #12-154
SECTION 23 25 00
HVAC WATER TREATMENT
PART 1 GENERAL
1.1 SUMMARY
A. Section Includes:
1. System cleaner.
2. Closed system treatment (water).
3. Condenser water system treatment.
4. Chemical feeder equipment including associated feeders, pumps, tanks, controls,
meters and valves.
5. Test equipment.
B. Related Sections:
1. Section 26 05 03 - Equipment Wiring Connections: Execution requirements for
electrical connections specified by this section.
1.2 REFERENCES
A. National Electrical Manufacturers Association:
1. NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).
1.3 PERFORMANCE REQUIREMENTS
A. Perform base-line testing of the existing closed loop chilled water and open loop cooling
tower water so as to provide the Owner known baseline conditions. Baseline conditions
shall be submitted to the Engineer, Owner and CxA for review.
B. Provide system to treat water at project site to maintain the acceptable characteristics of
water in closed and open loop systems. Acceptable characteristics shall be defined as
characteristics that will not impact equipment efficiency, performance or warranties.
Suitable characteristics of water shall be determined by a certified water treatment
professional and shall be submitted to the Engineer, Owner & CxA for review.
1.4 SUBMITTALS
A. Section 23 05 00 – General Mechanical Requirements: Submittal procedures.
B. Shop Drawings: Indicate system schematic, equipment locations, and controls
schematics, electrical characteristics and connection requirements.
C. Product Data: Submit chemical treatment materials, chemicals, and equipment including
electrical characteristics and connection requirements.
D. Manufacturer's Installation Instructions: Submit placement of equipment in systems,
piping configuration, and connection requirements.
E. Manufacturer's Certificate: Certify products meet or exceed specified requirements.
HVAC WATER TREATMENT 23 25 00 - 1