Specs

Bridgestone Retail Operations, LLC
PROJECT MANUAL
Version: January 2012
3.03 WASTE PIPE AND CONDENSATE DRAIN PIPING: Soil waste and vent pipe and condensate drain
pipe shall have all outlets temporarily plugged up. The pipes shall be filled with water testing the
system in sections. lf, after 24 hours, the level of the water has been lowered by leakage, the leaks must
be found and stopped by the Contractor, and the water level shall again be raised and the test repeated, until
after the 24-hour retention period there shall be no perceptible lowering of the water level of the system
being tested.
3.04 REFRIGERANT PIPING:
A. When the refrigeration piping system is complete, disconnect and cap all lines to gauges and
pressurestats that can be damaged by a pressure test. Charge system with two (2) pounds of
refrigerant. Open all service valves in system. Replace refrigerant drum with cylinder of dry
nitrogen and build up system pressure to 100-150 lbs. in accordance with local codes. Check all
joints and equipment for leaks with use of halide electronic leak detector. Relieve system pressure
and repair or correct all leaks. Reconnect all capped lines. The entire system shall be evacuated
with use of vacuum pump capable of pulling system down to 50-100 micron range. Do not use
compressor as pump. Break vacuum with dry refrigerant on small systems or dry nitrogen on large
installation.
3.05 NATURAL GAS PIPING:
A. Low pressure natural gas piping shall be air tested to a pressure of 6" mercury column for a period
of not less than 15 minutes. Readings shall be made only with mercury manometer.
B. Medium pressure natural gas piping shall be air tested to a pressure of 25 psi for a period of
one hour.
END OF SECTION
TESTS AND ADJUSTMENTS 15020 - Page 2 of 2