User Guide

HYDRONIC SPECIALTIES TACO 4900 05/08/2008
HYDRONIC SPECIALTIES TACO 4900 15181-2
1.6 DELIVERY, STORAGE, AND HANDLING
A. Accept valves on site in shipping containers with labeling in place. Inspect for damage.
B. Provide temporary end caps and closures on piping and fittings. Maintain in place until
installation.
C. Protect piping components from entry of foreign materials by temporary covers, completing
sections of the work, and isolating parts of completed system.
1.7 MAINTENANCE SERVICE
A. Contractor to furnish service and maintenance for one year from date of substantial completion.
1.8 EXTRA MATERIALS
A. See Section 01400 - Quality Requirements, for additional provisions.
PART 2 - PRODUCTS
2.1 ASME Full Bladder Type EXPANSION TANKS
A. Manufacturers:
1. Taco, Inc; Model CA ______: www.taco-hvac.com
2. ITT Bell & Gossett
3. Amtrol Inc
4. Substitutions: See Section 01600 - Product Requirements.
B. Construction: Welded steel, designed, tested and stamped in accordance with ASME (BPV code
sec VIII, div 1); supplied with National Board Form U-1, rated for working pressure of 150 psi ,
with flexible heavy duty butyl rubber bladder. Bladder shall be able to accept the full volume of
the expansion tank and shall be removable and replaceable. Bladder shall be NSF 61 rated for
potable water service and shall be manufactured with FDA approved materials.
C. Accessories: Pressure gage (field installed by others) and air-charging fitting ; precharge to
____ psi.
D. Automatic Cold Water Fill Assembly (field installed by others): Pressure reducing valve,
reduced pressure double check back flow preventer, test cocks, strainer, vacuum breaker, and
valved by-pass.
E. Size:
1. Capacity: ___________HW. _____________CHW (acceptance volume to equal tank
capacity)
2. Capacity of submitted tanks must be equal to or greater than specified units. No
exceptions unless stated in an addendum.