SPECIFICATIONS.pdf

SPECIFICATION

1.0 Specifications Description:

Plant Growth Chamber

Quantity: 1

Unit Type: Each

Minimum Requirements:

• Exterior dimensions not to exceed: height 79 inches, depth 35.5 inches (must be able to fit through a 35.75 inch doorway), width 106 inches.

• Interior dimensions: one tier with at least 94 cubic ft, and at least 16 ft2 work area. Tier dimensions: at least 72 inches wide, 31.5 inches deep.

• Interior specifications: walls with durable white reflective coating. Stainless steel floor with integrated floor drain, anodized aluminum work surface.

• Maximum growing height: at least 56 inches, preferably greater.

• Water-cooled refrigeration condensing unit.

• Electrical: direct wired 120/208/1/60 (4-wire, plus ground)

• Adjustable legs/ casters for leveling unit.

• Controller requirements: Graphical user interface with touchscreen. Precise control of at least 7 environmental parameters simultaneously. Display of chamber programs and parameters with charting/ graphing of data. Alarm notifications. Must be able to control chamber temperature, lighting, dehumidification, automatic watering, internal electrical outlet. Must have ability to store and recall programs. Diurnal and multi-step program options.

• Temperature requirements: temperature range at least 4 – 35°C with lights off and 10 – 35 °C with lights on, ±0.5 °C within the work area as measured on a horizontal plane with lights on, programmable and integrated with/ controlled by the unit’s control system.

• Lighting requirements: LEDs optimized for plant growth with enhanced/ added red and far-red intensity of at least 1450 µmoles/m2/s 6 inches from LEDs, dimmable to at least 10-100% of output, programmable and integrated with/ controlled by the unit’s control system. Full spectrum light meter for measuring light output.

• Height-adjustable (vertically adjustable) lighting lamp bank.

• Dehumidification requirements: dehumidification down to at least 45% relative humidity ±10% between 15 – 30 °C with lights on or off, with electronic relative humidity sensor, programmable and integrated with/ controlled by the unit’s control system.

• Airflow movement upwards through entire work surface through holes in channels, and with adjustable fresh air inlet(s) and exhaust(s) ports.

• Two reach-in doors with locks that allow access to the entire chamber with tight seal to door frame.

• Observation window with light-tight cover in at least one of the reach-in doors.

• Interior electrical receptacle, at least 1 amp, programmable and integrated with/ controlled by the unit’s control system

• At least two access ports with air-tight plugs for equipment.

• Temperature limit safety controls with audible alarms and visible indicators that shut down chamber power when alarm limit is reached, and restart chamber when temperature is within normal range.

• Remote alarm contacts for building automation system monitoring.

• Automatic watering system: programmable and integrated with/ controlled by the unit’s control system.

• Technical and operator manuals to be included.

• Must include delivery, installation, and training.

2.0 Place of Delivery

USDA ARS Cereal Disease Lab

ATTN: Karen Broz

1551 Lindig St.

Saint Paul, MN 55108

Deliver to Inside the building and install.

3.0 Delivery Schedule

Item QTY Unit Place of Delivery Delivery Date Plant Growth Chamber 1 Each Garage area, we have access to a forklift

130 Days After Award

4.0 Delivery Point of Contact

Karen Broz, karen.broz@usda.gov (612)626-2065

5.0 Additional Requirements

A Manufacturer Warranty of at least 2 years is required for the Plant Growth Chamber.

mailto:karen.broz@usda.gov