Attachment 2 - Specifications (Specs).pdf

Specifications Project: Walk-In Growth-Chamber with Incidental Installation Services

GENERAL INFORMATION

1.0 Backround:

The Foreign Disease-Weed Science Research Unit (FDWSRU) conducts research on emerging plant pathogens in Biosafety Level (BSL)-3 and BSL-2 laboratories and requires an additional 4th walk-in fluid-cooled controlled environmental plant growth chamber to be procured and installed to support research capability needs at our locations. Currently, Bldg. 1301 contains 3 walk-in and 8 reach-in fluid-cooled controlled environment plant growth chambers that house research projects critical to the mission. Fluid-cooled heat exchange on the units ensures that excessive heat from chamber operations does not build up inside bldg. 1301. These plant growth chambers are serviced by two existing 56-ton York chiller units external to the building.

CONTRACTOR REQUIREMENTS

2.0 Technical Requirements/Tasks:

Water-cooled condenser (Walk-In Growth Chamber)

• Form Factor:

o Minimum of 96 Square Feet of Growth Space o Maximum external dimensions of 9’11” w x 11’10” d x 9’2” h o Capable of racking, multilevel plants

• LED Grow Lighting:

o Dimming 10-100% o Tunable light spectrum o Capable of at least 1500 micromoles at 1 meter from canopy

• Temperature and Humidity Controls:

o Temp range: minimum range -5°C to 40°C, o Lights on/off +/- 1 degree C (continuous operation without defrost spikes) o Temperature control: ± 0.5 degrees C around the temperature set point o Relative humidity range: 40 - 70%, lights off and 40 - 60%, lights on between a temperature range of 15°C to 30°C.

o Additive Dehumidification/Humidification: 2% to 95% RH with +5% control, (subject to dew point restrictions)

• Cooling: Water-cooled condensing unit to be in mechanical space one floor below room

• Dynamic Scheduling Control: Programmable Controller with touchscreen and scheduling capabilities for dynamic chamber controls and weather condition mimicking

• Capable of racking, multilevel plants Building Utilities:

• 120/208V – 3 phase – 60 Hz, 4-wire plus ground

• Water for humidification

• Chilled water supply/return

• Sanitary Sewer: floor drain Security Requirements:

• Meet “Section 01140 – Work Restrictions”

Assembly & Installation:

• Installation: Shipping, Onsite Assembly & Installation, Commissioning/Starup

• Meet “Section 01352 - Governmental Safety Requirements”

Training:

• User Training after Commissioning/Startup

Warranty:

• 2-year warranty parts; 1-year warranty labor

3.0 Deliverables / Schedule:

Item QTY Unit Place of Delivery

Delivery Date

Growth-Chamber (Material Submittal with Dimensions and cut-sheet)

1 Each See Below 7 Days After Award

Growth-Chamber Delivered 1 Each See Below 60 Days After Submittal Approval

Installation Completed 1 Each See Below 14 Days After Delivery

Training & Final Inspection 1 Each See Below Within 7 Days of Installation Completion

Place of Delivery USDA-ARS NEA Foreign Disease Weed Science Research Unit (FDWSRU) 1301 Ditto Avenue, Frederick, MD 21702

Delivery Details A loading dock is not available, there are multiple building access points. Closest to installation location is located at the side of the building, through a 34.5” x 82.5” door.

Elevator and stairs are available for delivery to the basement/lower floor.

The available elevator dimensions will not accommodate the size of the item if fully assembled when delivered.

Delivery Point of Contact TBD at time of award.