Complete Compiled Specification.pdf - Peck Ormsby Construction

seismic restraints have been installed per manufacturer's instructions and applicable codes and
standards.
CHEMICAL CLEANING:
Prior to operating any heating systems, all piping systems and components shall be chemically cleaned and
flushed by an experienced chemical cleaning service approved by the owner's representative.
Pipe Exterior: Wash and wipe pipe exterior to remove construction dirt, loose scale and flux.
Pipe Interior: Flush pipe interior with clean water. Continue flushing until the piping system runs clean. After
flushing inspect strainer screens, refrigeration machine water boxes, piping low points, and tank drains to
determine the presence of construction debris. If debris is found, disassemble equipment and remove debris.
Reflush the system and re-inspect.
Do not operate centrifugal pumps until system has been cleaned and flushed.
Provide written certification of the chemical cleaning with dates, duration, and chemical concentrations used.
GLYCOL FILL SYSTEMS:
Furnish and install the glycol fill system detailed on the drawings.
The fill system shall be complete with 30 gallon translucent polypropylene tank with cover, high pressure
metering pump with controls, liquid level alarm sensors to sound local alarm on high -or- low tank level and
prevent pump operation on low liquid level.
Controls shall cycle on feed pump when system pressure falls below low pressure set point and shall cycle off
when system pressure exceeds high pressure set point.
Provide operating controls for glycol feed unit on the heating water system.
Provide (1) hand pump to owner for transfer of glycol from drums to tank.
Electrical contractor to provide a 110 volt duplex outlet for glycol feed and reclaim systems and a 110 volt duplex
outlet for each receptor pump. Wiring of system and associated conduit to be by Division 15000. Control
contractor to provide and install all conduit and wiring for all low voltage wiring. All control wiring to be in
conformance with NEC and Division 16. 3/4" conduit minimum.
System shall be Power Engineering, Alpine Technical Services, West Chemical, or Pulsafeeder.
GLYCOL FILL:
This contractor shall furnish all propylene glycol solution for the chilled water system to provide a 30% volumetric
concentration. Glycol solution shall be Dowfrost HD or Jeffcool P150 low toxicity polypropylene with extra
strength corrosion inhibitors and colored dye for identification. This contractor shall provide 30 gallons of 30%
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDTION March 2, 2009
BASIC MATERIALS & METHODS 15050-20