3.2
3.3
K.
L
M.
15601-4
HYDRONIC HEATING SYSTEMS
PIPING AND SPECIALTIES
Sleeves and Plates:
1. | Provide and install sleeves sized to provide 1/4 inch minimum annular space
around pipes passing through masonry walls and floors. Allow all insulation to
pass through sleeves except where gas-tight calking is required.
2. | Where exposed pipes pass through finished walls, floors, ceilings, etc. provide
and set split cover plates.
Drains:
1. | Provide drain valves where shown on the Drawings, at all low points, and at all
equipment.
2. Drains shall be 1/2 inch hose valve style.
Provide and install dielectric unions at junction of pipes of dissimilar metals.
Provide and install control measurement and valves in piping systems that are
supplied by other trades.
Provide and install unions to allow removal of all control valves.
TESTING AND BALANCING
GUaAW pS
im
Perform a hydrostatic pressure test on all piping and equipment.
Test pressure shall be 100 psi or 1-1/2 times the working pressure, whichever is greater.
Repair, replace and rework, as required, to repair any defects and retest for approval.
Perform all testing prior to installation of insulation. Test systems in sections as
required to prevent delay of project.
Balance the entire hydronic heating system in accordance with applicable sections of
Division 1 and Section 15907 of this Division.
Operational Test: Upon completion of installation of all equipment and acceptance
of tests and balancing, perform a 24-hour continuous operational test in the presence
of the Engineers and Owner's representative to demonstrate proper operation of all
functions of the equipment and system.
PAINTING AND IDENTIFICATION
A.
All heating system piping, valves, pumps and equipment shall be painted and labeled
in accordance with Specification Section 09900.
END OF SECTION
13089K
