Attachment 2 Greenhouse Ventilation.pdf
PDF 117 KB Posted
- Attached to
- Renovate Greenhouse Ventilation Federal contract opportunity
- Solicitation number
- 12805B21Q0349
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Attachment 4 Rev 1 Scope of Work (SOW).pdf | ||
| Amendment 0001.pdf | ||
| Attachment 1 Greenhouse Dimensions Existing.pdf | ||
| Attachment 4 Scope of Work (SOW).pdf | ||
| Attachment 6 ARS-371.pdf | ||
| Solicitation 12805B21Q0349.pdf | ||
| Attachment 7 ARS-372.pdf | ||
| Attachment 3 Infrared_Heaters_Specs.pdf | ||
| Attachment 5 Wage Determination TX20210235.pdf |
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Text version
Attachment 2
• Ridge Vent one manual gear box in center of building.
• Ventilation fans and cooling pads controlled by Wadworth controller (not funcitioning)
Existing Greenhouse ventilation arrangement.
Cooling pad with exterior louver
Exhaust fan
Supply fan Modine heater
Ridge louver
• Remove end wall exhaust fans and patch openings.
• Divide ridge louver into two manually operated sections.
• Replace end wall supply fan with exhaust fan interlocked with shuttered gooseneck exhaust port.
• Install new exhaust fans on side wall and interlock with shutters on opposite wall.
• Install infrared solaronic tube heater.
• Install cooling pad system.
• Install control system and sensor as required.
New Final Ventilation System Arrangement.
Exhaust fan
Infrared heater
Ridge louver
Gooseneck vent
Shutters
Cooling pad
Top exhaust fan
Top exhaust fan Recirc fan (8)
Controls Operation
• Top ridge vent for each greenhouse section controlled via manual gear and chain.
Cooling
• Recirc fans on normally.
• 1st stage: Top exhaust fan come on. Recirc fans turn off.
• 2nd stage: One Side exhaust fans and one-half of shutters open (every other one)
• 3rd stage: Other Side exhaust fans and one-half of shutters open (every other one).
• 4th stage: Cooling pad turn on.
• System ramps down due to temperature setpoints.
Heating
• Recirc fans on normally.
• Infrared heaters turn on.
Notes:
• Two independent controls systems, one for each half of the greenhouse.
• All relays and contacts to be duty rated for equipment controlling.
• System to automatically switch between heating and cooling modes as necessary.
File details come from the government source that posted it. Updated .