drawings.
Manufacturer shall furnish with each test procedure a description of
acceptable performance results that shall be verified. Manufacturer shall
identify the acceptable limits or tolerances within which each tested
performance variable shall acceptably operate.
2.6.1.3
Test Configuration
Plans shall indicate that tests are to be performed for a minimum of four
continuous hours in a wet coil condition. If test period is interrupted,
the four hour test period shall be started over. Each test plan shall be
job specific and shall address the particular CRACU[s] and particular
conditions which exist with this contract. Generic or general preprinted
test procedures are not acceptable. [Tests shall include [a pressurized
raised floor discharge configuration at the specified or indicated height
above the floor,][ with or without the air discharge elbows; ][or a top air
discharge configuration][ and phenolic coated coils].]
2.6.1.4
Tested Variables
Plans shall provide for air side testing which includes verification of the
airflow, total static pressure; fan drive motor KW, amperage and RPM; and
fan RPM. Provide entering air temperatures equal to those indicated on the
CRACU schedules.
2.6.1.5
Thermal Testing
Plans shall provide thermal testing utilizing [chilled water] [40 percent
ethylene glycol and 60 percent water solution] [and] [hot water] with
temperatures equal to those indicated on the CRACU schedules. Thermal
testing shall verify CRACU heating, sensible cooling, total cooling, and
humidifying performance scheduled on the contract drawings.
2.6.1.6
Specialized Components
Include procedures for field testing and field adjusting specialized
components, such as hot gas bypass control valves, or pressure valves.
[2.6.1.7
Factory Test For Sound Pressure Level
**************************************************************************
NOTE: Do not include the following sound rating
tests in the specification without written
permission from the Engineering Field Division's
Mechanical Design Branch for a particular project.
Prior to including the following sound testing
paragraph, coordinate the following aspects of the
requirements:
1.
Determining the sound ratings of CRACU's
requires specific factory testing. This testing may
need to be witnessed by a representative of the
Contracting Officer to verify compliance since no
manufacturer to date has performed these sound
rating tests.
2.
Sound rating testing will add significant cost
to each CRACU and therefore must be covered by the
SECTION 15702N
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