This shutter can be motorized to be used as outside air intake or free-air exhaust when connected to a controller. Outdoor air is drawn in through this motorized shutter and hot air is exhausted through a motorized shutter fan. Can also be used as exhaust shutter with an evaporative cooler. Standard Features High efficiency shutter with tie bar to eliminate shutter flapping Shutter only Nylons bearings; solid shafts; drawn cup-type sleeves on all movable linkage Frame of heavy aluminum extrusion with 1/2" channel lock water stop with precision milled and welded corners for durability Interlocking blades for maximum weather seal Constructed with rigid "T" section center member Optional Motorized Shutter Kit available to turn any shutter into a power shutter Installation Hobby Greenhouse Motorized Inlet Shutter Installation (PDF) Thermostat - How-to-Wire for Heating or Cooling (PDF) Performance Specifications when used with the Motorized Shutter Kit Select desired shutter model above. Sizing information below. Model NO. Description CFM Rough-In Opening VRSG12A Single Panel Motorized Shutter 500 12.5" x 12.5" VRSG16A Single Panel Motorized Shutter 890 16.5" x 16.5" VRSG18A Single Panel Motorized Shutter 1125 18.5" x 18.5" VRSG20A Single Panel Motorized Shutter 1388 20.5" x 20.5" VRSG24A Single Panel Motorized Shutter 2000 24.5" x 24.5" VRSG30A Single Panel Motorized Shutter 3125 30.5" x 30.5" VRSG36A Double Panel Motorized Shutter 5000 36.5" x 36.5" VRSG40A Double Panel Motorized Shutter 6300 40.5" x 40.5" VRSG42A Double Panel Motorized Shutter 7000 42.5" x 42.5" VRSG48A Double Panel Motorized Shutter 9000 48.5" x 48.5" VRSG54A Double Panel Motorized Shutter 12000 54.5" x 54.5" VRSG60A Double Panel Motorized Shutter 14000 60.5" x 60.5" How do I size my fan and shutters system? 1. The first thing that you need to determine is the amount of air required. This is stated in CFM (Cubic Feet of Air per Minute). 2. Use the following formula to determine the CFM required for your greenhouse: CFM = Length x Width x HeightExample: Greenhouse 12' wide x 24' long x 12' high requires 3456 CFM (12 x 24 x 12 = 3456). 3. Reference the above table. Select the appropriate combination of fan(s) to achieve the necessary CFM rating. Be sure to match the total CFM output for your exhaust fan(s) to the CFM ratings for your Inlet Shutters. Click here to view fan installation detail
