Scholar III Unit Ventilator

Transcription

1 Scholar III Unit Ventilator 800 to 2000 CFM Models SVI General Description The Scholar III unit ventilator is designed to provide comfortable, quiet and efficient heating and cooling for school classrooms. The Scholar III unit ventilator is installed inside the classroom against an exterior wall. The vandal resistant outdoor air box goes through the exterior wall. This unique design makes it ideal for both new construction and renovation projects. The Scholar III unit ventilator whispers cooling, heating, and ventilation comfort throughout the classroom with efficiencies that excel in comfort system design. The Scholar III unit ventilator can provide ventilation to meet ASHRAE standards. The cabinet is constructed of corrosion resistant galvanized steel with a mark and scratch resistant polyester finish. The standard cabinet color is silver grey (optional colors are available for special request). The Scholar III unit ventilator occupies little floor space and can be controlled by an internal thermostat, a standard room thermostat, or interfaced with an energy management system. The exterior louver/collar assembly blends in an architecturally pleasing manner, conforming with the building exterior in color and form. Scholar III Unit Ventilator All Scholar III unit ventilator models are available with voltage rating for 230/208V - 1ø or 3ø, or 460V - 3ø electric supply and are built to the requirements of the current edition of UL standard The Scholar III unit ventilator is available in a SVI 1000 model with air delivery capacities of 800 to 1200 cfm, and a SVI 2000 model with air delivery capacities of 1400 to 2000 cfm. The unit can be equipped with electric heat, or hot water heat, and chilled water or direct expansion coil cooling. Benefits Quiet Operation is the result of using a thick, acoustical/thermal insulation applied internally to the panels of the Scholar III unit ventilator. A quiet, indoor air mover further reduces the sound level. Finally, extra large air supply outlet and return reduce the sound of air motion in the classroom. Fresh Air Ventilation. The Scholar III unit ventilator offers a number of ventilation configurations to address fresh air requirements. Ventilation configurations include a manual or motorized damper and the Marvair exclusive GreenWheel and GreenCube total energy recovery ventilators. Humidity Control. Electric reheat dehumidification (optional) permits dehumidification of fresh air and room air without over cooling the classroom. When cooling is satisfied and the humidity controller calls for dehumidification, the electric elements are energized to add heat to the air supplied to the classroom. For optimal humidity control, reheat dehumidification should be used with the GreenWheel ERV. Low Operating Costs are the result of a highly efficient system. The Scholar III unit ventilator offers the option of supplemental electric resistance, or hot water heat, thus allowing the choice of the lowest cost heat energy source. Ease of Service is a major feature of the Scholar III unit ventilator s design, with full access to parts, air filters and controls from the room side with quick access through the hinged front panels. 1 Scholar III Ventilator PDS 01/2013 new Scholar III Ventilator PDS 01/2013 new

2 Ease of Installation The outdoor air box is slid into the rectangular wall opening and the louver/collar assembly is fastened directly to the outdoor air box with self tapping screws. Standard wall thickness for Scholar III unit ventilator installation is 14. For thinner walls (less than 14 ), the louver/collar assembly may be flush with the outside wall, and the Scholar III unit ventilator can stand away from the interior wall. The appropriate accessory free standing trim piece is available to provide an attractive, color coordinated decorative panel between the Scholar III unit ventilator and the wall. If it is desirable to elevate the Scholar III unit ventilator from the finished floor surface for custodial reasons, a 4, 5, 6 or 8 high base is available. The Scholar III unit ventilator can be installed as a freeblow or ducted system with accessories to provide easy installations. If the open area between the top of the unit and the ceiling is to be enclosed, an extended plenum may be ordered up to 40 in height. Field Installed Accessories Trim Piece. When the Scholar III unit ventilator must be installed a distance from the inside of the finished wall, the trim piece will provide a color coordinated panel between the cabinet and the wall. Order in the same color as the cabinet and specify the distance from the back of the cabinet to the inside of the finished wall and the color. Trim pieces come in five foot lengths of variable widths. Base Stand. A 4, 5, 6 or 8 high base is the same dimension as the Scholar III unit ventilator cabinet and raises the cabinet off the floor for custodial purposes. The base stand is the same color as the cabinet of the Scholar SVI. CROSS SECTION OUTDOOR AIR BOX LOUVER COLLAR ASSEMBLY BASE STAND Outdoor Louver and Collar Options Louver/Collar Assembly. Aluminum, preassembled at the factory to cover outside wall opening. The louver with 2" collar assembly is to be used when the louver is flush with the outside wall and is the preferred method of filling and sealing the outside wall. Available in various painted or anodized colors. See the Marvair Louver Brochure for a full description of the louver and the standard and custom colors. Exterior louver includes 1/2 x 1/2 screen. Louver Collar. Aluminum collar to enclose louver and provide finished appearance over wall opening. Fits flush with outer wall surface. Normally used when wall depth is less than 14" and louver is not flush with the outside wall. Louver. Aluminum louver for covering the outside wall opening. Used with collar when louver is not flush with the outside wall. Exterior louver includes 1/2 x 1/2 screen. Air Distribution Options LOUVER/COLLAR Freeblow Air Distribution is provided with the freeblow plenum. The front grilles have individually adjustable vertical and horizontal louvers that provide a full range of airflow direction. Two side supply grilles with vertical louvers enhance the the air flow in the classroom. All grilles have a clear brushed aluminium finish. The freeblow plenum is to be used with units with no heat or electric resistance heat. The plenum is 12½" high. Ducted Air Distribution is provided with the ducted plenum. The plenum is 12½" high. Duct can be easily installed to the flanged rectangular opening on the top of the plenum. Scholar III Ventilator PDS 01/2013 new 2

3 Cooling and Heating Options Two cooling options and two heating options are offered on the Scholar SVI unit ventilator. Several of the options are mutually exclusive. The following matrix identifies the available combinations and where the cooling coil and the heating coil or heating elements are located. Two stage heat is offered in several configurations. Two stage cooling is not available. Hot Water Coil Electric Resistance Heat Chilled Water Coil DX Cooling Coil Heating Cooling Hot Water Coil DX Heating Coil Electric Resistance Heat Chilled Water Coil DX Cooling Coil Coil located in the SVI unit Chilled water coil located in the unit and the hot water coil in the plenum DX coil is in the unit and the hot water coil is in the plenum DX coil is in the SVI unit and the electric heat is on top of the SVI unit DX coil is in the unit and the chilled water coil is in the plenum DX coil is in the unit Heaters are on top of the SVI unit Chilled water coil is in the SVI unit and electric heaters are on top DX coil in the unit and the electric heat is on the top of the unit Chilled water coil located in the unit and the hot water coil in the plenum Chilled water coil is in the SVI unit and electric heaters are on top Coil is in the SVI unit DX coil located in the unit and the hot water coil in the plenum DX coil is in the SVI unit and electric heaters are on top Coil is in the unit Heat Options Electric Resistance Heat is installed above the indoor blower outlets and can be used with either the free blow plenum or with the ducted air distributions options. See chart below for availability of electric heat. Heater kw Voltage /220 Volt 1ø Yes Yes Yes No 208/220 Volt 3ø Yes Yes Yes Yes 460 Volt Yes Yes Yes Yes Hot Water Heat. The coil is installed within the Scholar III unit ventilator cabinet. Hot water coil capacities for the Scholar unit ventilator models are shown below. A diverter valve is factory installed with the hot water coil. Hot water heat is factory installed in the freeblow or the ducted plenums. Hot water heat is plumbed from the top right side of the plenum. As a standard safety feature, each hot water coil has a protective 24 volt thermostat embedded within it to shut off air flow across the water coil if the coil temperature drops to 32 F. 3 Scholar III Ventilator PDS 01/2013 new

4 Entering Air Temperature 70ºF DB, 60ºF WB Scholar III Ventilator PDS 01/2013 new 4 SVIA1000 HOT WATER PERFORMANCE 180ºF Entering Water Temperature Water Flow (GPM) Indoor Air Flow (CFM) 800 Total Capacity (Btu/Hr) 44,359 56,790 62,475 65,757 67,900 69,412 70,539 71,413 72,111 72,683 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 900 Total Capacity (Btu/Hr) 46,065 59,851 66,323 70,109 72,603 74,375 75,701 76,733 77,560 78,238 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,000 Total Capacity (Btu/Hr) 47,529 62,536 69,762 74,030 76,863 78,887 80,408 81,595 82,549 83,333 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,100 Total Capacity (Btu/Hr) 48,799 64,926 72,858 77,585 80,744 83,011 84,721 86,060 87,138 88,026 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,200 Total Capacity (Btu/Hr) 49,916 67,067 75,662 80,826 84,297 86,800 88,693 90,179 91,378 92,367 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Entering Air Temperature 70ºF DB, 60ºF WB SVIA2000 HOT WATER PERFORMANCE 180ºF Entering Water Temperature Water Flow (GPM) Indoor Air Flow (CFM) 1,300 Total Capacity (Btu/Hr) 50,903 69,001 78,218 83,797 87,569 90,297 92,368 93,977 95,313 96,401 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,400 Total Capacity (Btu/Hr) 51,783 70,759 80,554 86,535 90,594 93,541 95,783 97,551 98, ,164 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,500 Total Capacity (Btu/Hr) 52,575 72,363 82,703 89,070 93,405 96,561 98, , , ,688 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (of) Indoor Air Flow (CFM) 1,600 Total Capacity (Btu/Hr) 53,293 73,838 84,691 91,426 96,025 99, , , , ,999 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (ºF) Indoor Air Flow (CFM) 1,700 Total Capacity (Btu/Hr) 53,944 75,197 86,539 93,624 98, , , , , ,118 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Leaving Fluid Temp. (ºF) Fluid Delta T (of)

5 Cooling options Chilled water coil. A chilled water coil can be factory installed in the SVI unit. Please see Tables below for performance data of the chilled water coil. SVIA 1000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 50 LWT) CHILLED WATER ºF (45 EWT / 53 LWT) T=8 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 32,065 37,084 42,458 48,248 54,314 27,185 31,609 36,828 42,417 48,467 Sensible Capacity (Btu/Hr) 24,009 25,670 27,372 29,147 30,920 21,787 23,212 24,861 26,556 28,323 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 35,478 40,935 46,844 53,222 59,914 30,101 34,961 40,631 46,769 53,426 Sensible Capacity (Btu/Hr) 26,696 28,484 30,343 32,284 34,223 24,248 25,811 27,587 29,435 31,365 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,000 1,000 Total Capacity (Btu/Hr) 38,755 44,682 51,110 58,056 65,099 32,982 38,186 44,332 51,000 58,052 Sensible Capacity (Btu/Hr) 29,308 31,243 33,252 35,352 37,337 26,683 28,344 30,259 32,256 34,261 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,100 1,100 Total Capacity (Btu/Hr) 41,918 48,297 55,217 62,591 70,008 35,703 41,301 47,899 55,068 62,358 Sensible Capacity (Btu/Hr) 31,859 33,932 36,083 38,280 40,325 29,032 30,819 32,865 35,000 37,016 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,200 1,200 Total Capacity (Btu/Hr) 45,008 51,793 59,183 66,787 74,713 38,342 44,346 51,344 58,729 66,479 Sensible Capacity (Btu/Hr) 34,366 36,559 38,844 41,053 43,221 31,333 33,254 35,410 37,564 39,689 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) SVIA 1000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 52 LWT) CHILLED WATER ºF (45 EWT / 55 LWT) T=10 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 28,680 33,142 38,458 44,134 50,301 24,276 28,096 32,742 38,259 44,189 Sensible Capacity (Btu/Hr) 22,423 23,865 25,561 27,298 29,122 20,432 21,654 23,095 24,781 26,512 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 31,731 36,694 42,467 48,695 55,470 26,809 31,145 36,253 42,232 48,729 Sensible Capacity (Btu/Hr) 24,933 26,543 28,367 30,260 32,246 22,697 24,111 25,694 27,504 29,387 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,000 1,000 Total Capacity (Btu/Hr) 34,709 40,110 46,373 53,134 60,496 29,387 34,078 39,631 46,101 53,144 Sensible Capacity (Btu/Hr) 27,398 29,149 31,119 33,161 35,302 24,972 26,505 28,226 30,175 32,203 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,100 1,100 Total Capacity (Btu/Hr) 37,678 43,419 50,141 57,406 65,326 31,866 36,992 42,904 49,832 57,389 Sensible Capacity (Btu/Hr) 29,848 31,697 33,802 35,982 38,268 27,188 28,879 30,702 32,779 34,941 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,200 1,200 Total Capacity (Btu/Hr) 40,501 46,624 53,788 61,531 69,982 34,335 39,772 46,108 53,437 61,498 Sensible Capacity (Btu/Hr) 32,219 34,189 36,423 38,732 41,154 29,387 31,163 33,141 35,322 37,616 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Scholar III Ventilator PDS 01/2013 new

6 T=12 Scholar III Ventilator PDS 01/2013 new 6 SVIA 1000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 54 LWT) CHILLED WATER ºF (45 EWT / 57 LWT) ENTERING AIR of (DB/WB) ENTERING AIR of (DB/WB) 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 25,192 29,309 34,052 39,667 45,740 21,333 24,800 28,829 33,692 39,541 Sensible Capacity (Btu/Hr) 20,779 22,139 23,624 25,347 27,155 18,970 20,177 21,427 22,888 24,610 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 28,034 32,549 37,681 43,836 50,484 23,720 27,441 32,025 37,297 43,686 Sensible Capacity (Btu/Hr) 23,176 24,668 26,263 28,154 30,106 21,135 22,432 23,883 25,457 27,328 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,000 1,000 Total Capacity (Btu/Hr) 30,804 35,670 41,319 47,905 55,065 25,913 30,110 35,108 40,905 47,732 Sensible Capacity (Btu/Hr) 25,524 27,132 28,896 30,899 32,981 23,182 24,686 26,278 28,016 29,996 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,100 1,100 Total Capacity (Btu/Hr) 33,467 38,706 44,771 51,834 59,507 28,122 32,786 38,107 44,325 51,635 Sensible Capacity (Btu/Hr) 27,810 29,546 31,437 33,576 35,792 25,227 26,933 28,625 30,488 32,598 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,200 1,200 Total Capacity (Btu/Hr) 36,059 41,734 48,128 55,631 63,797 30,339 35,339 40,956 47,712 55,405 Sensible Capacity (Btu/Hr) 30,049 31,946 33,927 36,188 38,531 27,265 29,111 30,897 32,937 35,138 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) T=8 SVIA 2000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 50 LWT) CHILLED WATER ºF (45 EWT / 53 LWT) ENTERING AIR of (DB/WB) ENTERING AIR of (DB/WB) 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) 1,400 1,400 Total Capacity (Btu/Hr) 53,460 61,690 70,518 79,850 89,318 45,533 52,656 61,191 70,341 79,564 Sensible Capacity (Btu/Hr) 40,605 43,294 46,040 48,810 51,424 36,999 39,270 41,934 44,660 47,200 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,500 1,500 Total Capacity (Btu/Hr) 56,570 65,238 74,544 84,102 94,083 48,197 55,761 64,691 73,980 83,739 Sensible Capacity (Btu/Hr) 43,123 45,947 48,828 51,608 54,347 39,313 41,734 44,505 47,216 49,897 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,600 1,600 Total Capacity (Btu/Hr) 59,649 68,684 78,418 88,204 98,680 50,791 58,730 68,089 77,543 87,762 Sensible Capacity (Btu/Hr) 45,620 48,546 51,543 54,337 57,194 41,588 44,129 47,024 49,735 52,527 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,700 1,700 Total Capacity (Btu/Hr) 62,785 72,047 81,851 92, ,136 53,331 61,625 71,360 81,048 91,661 Sensible Capacity (Btu/Hr) 48,139 51,101 54,055 57,005 59,978 43,828 46,483 49,483 52,226 55,102 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,800 1,800 Total Capacity (Btu/Hr) 65,686 75,333 85,287 96, ,462 55,822 64,675 74,338 84,405 95,445 Sensible Capacity (Btu/Hr) 50,538 53,615 56,566 59,618 62,703 46,039 48,901 51,810 54,648 57,625 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,900 1,900 Total Capacity (Btu/Hr) 68,534 78,513 88,697 99, ,677 58,376 67,469 77,240 87,675 99,131 Sensible Capacity (Btu/Hr) 52,907 56,077 59,062 62,187 65,379 48,275 51,198 54,101 57,031 60,106 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 2,000 2,000 Total Capacity (Btu/Hr) 71,322 81,423 91, , ,773 60,784 70,203 79,951 90, ,858 Sensible Capacity (Btu/Hr) 55,241 58,411 61,485 64,707 68,002 50,434 53,462 56,302 59,429 62,601 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O)

7 SVIA 2000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 52 LWT) CHILLED WATER ºF (45 EWT / 55 LWT) T=10 ENTERING AIR of (DB/WB) ENTERING AIR of (DB/WB) 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) 1,400 1,400 Total Capacity (Btu/Hr) 48,063 55,365 63,929 73,211 83,299 40,710 47,186 54,712 63,653 73,188 Sensible Capacity (Btu/Hr) 38,041 40,396 43,077 45,866 48,778 34,682 36,810 39,128 41,822 44,537 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,500 1,500 Total Capacity (Btu/Hr) 50,912 58,605 67,736 77,387 88,015 43,174 49,988 57,961 67,313 77,336 Sensible Capacity (Btu/Hr) 40,431 42,905 45,770 48,639 51,691 36,882 39,125 41,588 44,389 47,230 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,600 1,600 Total Capacity (Btu/Hr) 53,691 61,777 71,327 81,434 92,581 45,619 52,743 61,075 70,865 81,353 Sensible Capacity (Btu/Hr) 42,775 45,376 48,361 51,352 54,535 39,064 41,412 43,981 46,905 49,863 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,700 1,700 Total Capacity (Btu/Hr) 56,438 64,916 74,832 85,380 96,846 47,951 55,424 64,237 74,330 85,407 Sensible Capacity (Btu/Hr) 45,096 47,827 50,908 54,015 57,246 41,181 43,657 46,388 49,378 52,506 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,800 1,800 Total Capacity (Btu/Hr) 59,172 68,061 78,257 89, ,836 50,240 58,116 67,224 77,715 88,902 Sensible Capacity (Btu/Hr) 47,404 50,273 53,414 56,633 59,838 43,269 45,899 48,712 51,811 54,917 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,900 1,900 Total Capacity (Btu/Hr) 61,799 71,034 81,614 93, ,712 52,583 60,697 70,155 81,032 92,301 Sensible Capacity (Btu/Hr) 49,655 52,634 55,885 59,211 62,379 45,380 48,086 51,006 54,211 57,286 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 2,000 2,000 Total Capacity (Btu/Hr) 64,492 73,948 84,899 96, ,479 54,978 63,346 73,025 84,276 95,598 Sensible Capacity (Btu/Hr) 51,931 54,962 58,318 61,707 64,871 47,419 50,297 53,268 56,575 59,608 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Scholar III Ventilator PDS 01/2013 new

8 SVIA 2000 CHILLED WATER PERFORMANCE CHILLED WATER ºF (42 EWT / 54 LWT) CHILLED WATER ºF (45 EWT / 57 LWT) T=12 ENTERING AIR of (DB/WB) ENTERING AIR of (DB/WB) 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) 1,400 1,400 Total Capacity (Btu/Hr) 42,736 49,447 57,103 66,089 75,882 35,958 41,866 48,603 56,548 65,945 Sensible Capacity (Btu/Hr) 35,470 37,695 40,070 42,790 45,620 32,199 34,350 36,485 38,865 41,587 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,500 1,500 Total Capacity (Btu/Hr) 45,370 52,439 60,491 69,936 80,227 38,240 44,463 51,561 59,906 69,772 Sensible Capacity (Btu/Hr) 37,732 40,081 42,576 45,425 48,383 34,276 36,551 38,806 41,303 44,151 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,600 1,600 Total Capacity (Btu/Hr) 47,934 55,363 63,815 73,670 84,440 40,385 46,994 54,411 63,238 73,486 Sensible Capacity (Btu/Hr) 39,952 42,428 45,046 48,005 51,086 36,270 38,712 41,072 43,724 46,663 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,700 1,700 Total Capacity (Btu/Hr) 50,480 58,229 67,042 77,318 88,546 42,507 49,503 57,237 66,440 77,112 Sensible Capacity (Btu/Hr) 42,155 44,740 47,467 50,542 53,739 38,243 40,855 43,319 46,081 49,133 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,800 1,800 Total Capacity (Btu/Hr) 53,029 61,034 70,273 80,882 92,555 44,572 52,015 60,006 69,573 80,654 Sensible Capacity (Btu/Hr) 44,350 47,017 49,883 53,037 56,346 40,178 42,990 45,534 48,404 51,563 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 1,900 1,900 Total Capacity (Btu/Hr) 55,532 63,800 73,384 84,379 96,480 46,626 54,428 62,774 72,652 84,126 Sensible Capacity (Btu/Hr) 46,519 49,270 52,240 55,499 58,914 42,102 45,073 47,743 50,698 53,959 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) Indoor Air Flow (CFM) 2,000 2,000 Total Capacity (Btu/Hr) 57,841 66,513 76,438 87, ,394 48,652 56,755 65,453 75,683 87,383 Sensible Capacity (Btu/Hr) 48,581 51,492 54,566 57,923 61,474 44,004 47,107 49,905 52,965 56,263 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Water Flow (GPM) Water Press. Drop (Ft - H2O) DX cooling coil for use with an external cooling outdoor unit. In conjunction with an external condensing unit (not supplied by Marvair), DX cooling coil can be factory installed in the Scholar SVI unit. See Tables on the following page for performance data of the DX coil. Scholar III Ventilator PDS 01/2013 new 8

9 40ºF EVAPORATING TEMPERATURE SVIA 1000 DX COIL PERFORMANCE (with 10 Superheat) 45ºF EVAPORATING TEMPERATURE 50ºF EVAPORATING TEMPERATURE 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 40,169 44,677 49,240 53,935 58,794 32,017 36,472 41,584 46,359 51,252 23,352 27,918 32,643 37,504 42,438 Sensible Capacity (Btu/Hr) 27,855 29,382 30,860 32,302 33,753 23,844 25,360 27,106 28,612 30,087 20,052 21,499 23,062 24,585 26,103 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) Total Capacity (Btu/Hr) 44,050 48,967 54,009 59,074 64,318 35,463 40,431 45,571 50,804 56,134 25,745 30,843 36,163 41,536 46,945 Sensible Capacity (Btu/Hr) 30,715 32,358 33,980 35,519 37,032 26,523 28,213 29,887 31,519 33,098 22,223 23,895 25,662 27,361 28,991 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,000 1,000 1,000 Total Capacity (Btu/Hr) 47,699 53,036 58,395 63,858 69,441 38,422 43,743 49,303 54,962 60,684 27,966 33,458 39,140 44,922 50,816 Sensible Capacity (Btu/Hr) 33,446 35,218 36,905 38,530 40,129 28,952 30,745 32,537 34,274 35,963 24,314 26,139 28,009 29,820 31,583 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,100 1,100 1,100 Total Capacity (Btu/Hr) 51,162 56,763 62,488 68,279 74,214 41,250 46,861 52,803 58,846 64,913 30,070 35,860 41,920 48,005 54,400 Sensible Capacity (Btu/Hr) 36,075 37,898 39,666 41,385 43,022 31,306 33,171 35,061 36,910 38,667 26,332 28,279 30,256 32,139 34,041 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,200 1,200 1,200 Total Capacity (Btu/Hr) 54,329 60,261 66,303 72,394 78,632 43,735 49,780 56,078 62,444 68,874 32,063 38,135 44,523 50,996 57,737 Sensible Capacity (Btu/Hr) 38,546 40,447 42,303 44,054 45,763 33,490 35,492 37,487 39,397 41,242 28,281 30,346 32,413 34,403 36,384 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) ºF EVAPORATING TEMPERATURE SVIA 2000 DX COIL PERFORMANCE (with 10 Superheat) 45ºF EVAPORATING TEMPERATURE 50ºF EVAPORATING TEMPERATURE 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 76/63 78/65 80/67 82/69 84/71 Indoor Air Flow (CFM) 1,400 1,400 1,400 Total Capacity (Btu/Hr) 69,118 76,707 84,449 92, ,431 55,991 63,571 71,544 79,661 87,958 41,538 49,014 57,035 65,381 73,803 Sensible Capacity (Btu/Hr) 48,301 50,838 53,325 55,706 58,032 41,824 44,402 47,020 49,548 52,009 35,147 37,757 40,426 43,088 45,632 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,500 1,500 1,500 Total Capacity (Btu/Hr) 72,843 80,811 88,889 97, ,585 59,033 67,008 75,323 83,842 92,618 43,813 51,640 60,104 68,837 77,729 Sensible Capacity (Btu/Hr) 51,088 53,760 56,310 58,768 61,171 44,309 47,019 49,723 52,354 54,932 37,286 40,034 42,830 45,605 48,268 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,600 1,600 1,600 Total Capacity (Btu/Hr) 76,448 84,698 93, , ,524 61,926 70,304 78,951 87,886 97,052 46,012 54,152 63,052 72,024 81,542 Sensible Capacity (Btu/Hr) 53,832 56,558 59,181 61,721 64,180 46,729 49,562 52,349 55,080 57,761 39,408 42,253 45,184 48,003 50,864 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,700 1,700 1,700 Total Capacity (Btu/Hr) 79,872 88,400 97, , ,237 64,549 73,426 82,425 91, ,243 48,103 56,562 65,844 75,248 85,105 Sensible Capacity (Btu/Hr) 56,471 59,255 61,953 64,572 67,117 49,019 52,018 54,898 57,744 60,496 41,466 44,421 47,471 50,409 53,359 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,800 1,800 1,800 Total Capacity (Btu/Hr) 83,105 91, , , ,682 67,242 76,417 85,787 95, ,205 50,110 58,875 68,528 78,344 88,554 Sensible Capacity (Btu/Hr) 59,009 61,865 64,633 67,333 69,896 51,329 54,406 57,374 60,336 63,108 43,477 46,538 49,697 52,752 55,778 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 1,900 1,900 1,900 Total Capacity (Btu/Hr) 86,196 95, , , ,890 69,836 79,288 89,023 98, ,001 52,038 61,081 70,983 81,263 91,771 Sensible Capacity (Btu/Hr) 61,469 64,392 67,219 69,999 72,586 53,586 56,732 59,818 62,809 65,641 45,442 48,602 51,822 55,016 58,117 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Indoor Air Flow (CFM) 2,000 2,000 2,000 Total Capacity (Btu/Hr) 89,152 98, , , ,891 72,284 82,052 92, , ,687 53,896 63,191 73,508 84,055 94,877 Sensible Capacity (Btu/Hr) 63,857 66,838 69,788 72,532 75,148 55,765 58,984 62,173 65,204 68,106 47,366 50,616 53,964 57,218 60,390 Leaving Air - DB (ºF) Leaving Air - WB (ºF) Refrig. Press. Drop (psig) Scholar III Ventilator PDS 01/2013 new

10 Ventilation Options Manual Fresh Air Damper with Pressure Relief. (Ventilation Option "N") Manually adjustable to a fixed position up to 40% outside air, with a maximum of 550 cfm. Includes fresh air filter. Factory installed. Motorized Fresh Air Damper. (Ventilation Option "B") This configuration is a 24 volt actuated motor and allows fresh air to enter, as a function of an external input; e.g., time clock, CO 2 sensor, energy management system, or manual switch. Includes fresh air filter. Factory installed. Motorized Fresh Air Damper with Power Vent. (Ventilation Option "J") A 24 volt actuated motor and allows fresh air to enter, as a function of an external input; e.g., time clock, CO 2 sensor, energy management system, or manual switch. Includes fresh air filter. Vents up to 40% of classroom air, with a maximum of 550 cfm, to assure fresh air circulation. Factory installed. GreenCube ERV. (Ventilation Configuration Q ) The Marvair GreenCube ERV is an enthalpy plate heat exchanger that transfers both sensible and latent energies between outgoing and incoming air streams in a cross flow arrangement. Except for two air movers, it has no moving parts. The media is impregnated with a RC134 polymeric desiccant that exchanges water by direct vapor transfer using molecular transport without the need of condensation. The GreenCube ERV will operate at temperatures as low as 10 F (13 C). In addition, the desiccant is a bactericide. Two MERV 6 type filters are used on both sides of the enthalpy core. The fresh air and exhaust motors have independent speed controls to permit each of the motors to be regulated independently. GreenWheel ERV Ventilation. (Ventilation option "H") The Marvair GreenWheel ERV is a total energy (both sensible and latent) ventilator that reduces both construction and operating cost while ventilating the classroom to ASHRAE requirements. The use of the Green- Wheel ERV reduces the energy load of the outside air. SUMMER OPERATION OUTSIDE 95 F DB/75 F WB INSIDE 80 F DB/67 F WB AIRFLOW: 450 SCFM GreenWheel ERV Exhausting stale, inside air keeps indoor pollutants and harmful gases to a minimum. The Marvair GreenWheel ERV has been tested and certified according to ARI Standard How It Works - During the summer, cool dry air from the classroom is exhausted through the GreenWheel ERV to the outside. As the air passes through the rotating wheel, the desiccant becomes cooler and drier. Simultaneously, hot humid air is being pulled across the rotating wheel. The cool, dry desiccant absorbs moisture and heat from the incoming air. The cooler, drier air is mixed with the return air from the classroom and distributed throughout the room. In the winter, warm moist air is exhausted through the GreenWheel ERV to the outside. As the air passes through the rotating wheel, the desiccant becomes warmer and absorbs moisture. Simultaneously, cold dry air is being pulled across the rotating wheel. The cold, dry air absorbs heat and moisture from the desiccant. The warmed air is mixed with the return air from the classroom and distributed throughout the room. Quality Components - The GreenWheel ERV cassette consists of the wheel, two blowers and the drive motor and belt. The two blowers simultaneously pull fresh air from outside and exhaust air from the classroom through the rotating wheel. The air streams are separated by an insulated partition so that the incoming fresh air is not mixed with the exhaust air. Two variable speed blowers ensure that up to 450 CFM of outside air can be brought into the room and the indoor air is properly exhausted. Variable speed blowers permit that the desired quantity of outside air is delivered into the room. Optional independent exhaust air blower control allows positive pressurization of the classroom, i.e., more outside air can be introduced through the GreenWheel ERV than is exhausted. WINTER OPERATION OUTSIDE 17 F DB/15 F WB INSIDE 70 F DB/58 F WB AIRFLOW: 450 SCFM GreenWheel ERV 86 F DB 71 F WB 95 F DB Fresh Air In 75 F WB 48 F DB 43 F WB 17 F DB Fresh Air In 15 F WB Inside Outside Inside Outside 80 F DB 89 F DB 67 F WB 72 F WB Classroom Air Out 70 F DB 39 F DB 58 F WB 37 F WB Classroom Air Out Scholar III Ventilator PDS 01/2013 new 10

11 GreenWheel ERV Performance Vent Package Description Pressure Relief Vent Filters Vent Intake Blower Vent Exhaust Blower Standard Controls Options N Manual, fixed position damper. Up to 450 cfm of outside air not to exceed 40% of rated air flow Yes 1 Yes No One fan speed controller for intake air mover None H GreenWheel ERV cfm of outside air Yes 2 Yes Yes One fan speed controller that controls both blowers Second fan speed controller for the exhaust air B Two position (open & close) motorized damper. Up to 450 cfm of outside air not to exceed 40% of rated air flow Yes 1 Yes No One fan speed controller for intake air mover None J Power Vent with two position motorized damper cfm of outside air not to exceed 40% of rated air flow Yes 1 Yes Yes One fan speed controller that controls both blowers Second fan speed controller for the exhaust air Q GreenCube ERV Yes Yes Yes Yes Two blower speed controllers None A Fresh Air Backdraft Damper is standard on all ventilation configurations. This factory installed damper prevents outside air from entering the unit when the intake (fresh air) blower is off. The damper open whenever the ventilation fan is on and automatically closes when the ventilation blower is off. Thermostat Options Digital A/C Thermostat (p/n 50121) - 1 stage heat, 1 stage cool. Non-programmable. Fan switch: Auto & On. Manual changeover system switch: Cool-Off-Heat. Low temperature protection. F or C selectable. Digital A/C Thermostat (p/n 50123) - 1 stage heat, 1 stage cool. 7 day programmable. Fan switch: Auto & On. Auto-changeover. Keypad lockout. Non-volatile program memory. Title 24 compliant - no batteries needed. Digital A/C Thermostat (p/n 50186) Digital, non-programmable thermostat. One stage cool/one stage heat. Manual or auto changeover. Fan mode: Auto or On. Permanent retention of settings upon power loss. Field adjustable temperature calibration. Max heat and minimum cool set points. Adjustable temperature differential. Remote sensor capable. Keypad lock out. Status LED. F or C selectable. Thermostat Guard (p/n 50092) Clear thermostat guard with key lock and clear plastic cover and base For use with 50121, 50123, 50186, & thermostats. Thermostat Guard (p/n 50119) Clear, thermostat guard with key lock and clear plastic cover for use with thermostat. Digital Heat Pump Thermostat (p/n 50107) - two stage heat, two stage cool. Seven day programmable. Programmable fan. Auto-On Fan switch. Auto-changeover. Non-volatile program memory. Status LED s. Digital Heat Pump Thermostat (p/n 50248) - Digital, 7 day, 2 occupied & 2 unoccupied periods for each day of the week programmable thermostat. Three stage heat/ Three stage cool. Manual or auto changeover. Fan: Auto & On. Ten year retention of programming settings and 48 hour clock and day settings on power loss. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. F or C selectable. Optional remote sensors for outdoor air, supply air and humidity. Title 24 compliant. Internal Electronic Programmable Heat Pump Thermostat (p/n S/02792) (factory installed) with automatic 11 Scholar III Ventilator PDS 01/2013 new

12 changeover, has two stages of heating and one stage of cooling and a fan switch. System mode switch has OFF, COOL, AUTO, HEAT, and EM.HT. settings. Fan mode switch has OFF and AUTO settings. This thermostat may be used with systems that have no heat, electric resistance, a hot water coil or a steam coil. Digital, Non-Programmable Thermostat ( p/n 50252) Two stage heat/two stage cool. Manual or auto changeover. Fan: Auto & On. Permanent retention of setting on power loss. Field adjustable temperature calibration. Adjustable max. setpoint for heating and min. adjustable setpoints for cooling. Adjustable temperature differential. Keypad lockout. Status LED. F or C selectable. MAR7000 Thermostat/Controller The MAR7000 thermostat/controller is a stand alone, self-programming HVAC controller designed to optimize performance of Marvair s heat pumps and air conditioners. It can function as an independent controller or used in conjunction with a BACnet network. With built-in temperature and humidity sensors, motion sensing and an optional CO2 detection sensor, the MAR7000 can control: Single or 2-stage air conditioners or heat pumps with supplemental hot water or electric heat, Hot gas dehumidification operation, An economizer cycle, and Marvair s various ventilation options including the Marvair GreenWheel Energy Recovery Ventilator. Cabinet Construction & Options The Scholar unit Ventilator is constructed of 16 gauge exterior panels with a mark and scratch resistant polyester grey finish. (An optional beige finish is also available). The front doors are hinged to permit easy access to all components and filters. All exterior cabinet panels are double wall construction with a perforated interior panel and the finished exterior panel. Between the two sheet metal panels is a 1-1/4 thick, acoustical and thermal insulation. The perforation pattern and the insulation are designed to optimize the reduction of sound. The absorption mechanism of these panels is a combination of the perforated panels and insulation acting together as an array of Helmholtz Resonators. The columns of air in each perforation correspond to the neck of the Resonator and the layer of air at the back side of the panel including insulation The intelligent occupancy anticipation feature of the MAR7000 automatically programs occupied and unoccupied settings for temperature, humidity, and ventilation requirements. The ventilation control can be based on occupancy, demand, time, or a combination of these features. When vacant, the thermostat automatically reduces the run time of the unit and adjusts ventilation to save energy. The intelligent occupancy feature can be turned off, and the MAR7000 can be connected to a BACnet control system for remote control and operation of Marvair heat pumps or air conditioners. The MAR7000 thermostat includes a precise, real time clock with capacitor back up to maintain the program and set points for extended power outages. Features include: User-friendly English-language menus (no obscure numeric codes) on a 64 x128 pixel, dot-matrix LCD display with 5 buttons for data selection and entry, Built-in, factory-tested libraries of configurable application control sequences, Schedules that can easily be set uniquely by weekdays (Mon. Fri.), weekend (Sat. Sun.), entire week (Mon. Sun.), individual days, and/or holidays, Six On/Off and independent heating and cooling set point periods are available per day, and Three levels of password-protected access (user/operator/administrator) prevent disruption of operation and configuration. correspond to the body of the Resonator. As sound passes through a perforation, it causes the air of the neck to vibrate. When the vibrations meet the resistance of the panel material surrounding the perforation or the resistance of the insulation attached to the back of the perforated panel, the resistance causes the sound to convert to heat energy, the heat is absorbed by the insulation & sound levels are reduced. Cabinet Options Coastal Installations. For installation in coastal areas where salt corrosion may be a problem, the Unit Ventilator may be ordered with a stainless steel drain pan for the indoor coil. Tamper Resistant Door Latches. Requires access tool to open the front doors. Standard Controls BAS Control Relay. Available with 24, 120, or 240 VAC coils to control operation from an Energy Management System (EMS). Ventilation Controls. The motorized fresh air damper with PowerVent and the GreenCube and GreenWheel ERV ventilation options are equipped with a Fresh Air Fan Speed Control. The fresh air fan controls both the ventilation intake and exhaust blowers together, automatically balancing the intake exhaust cfm up to 550 cfm. Indoor Blower Fan Speed Control. Provides adjustable air volume from indoor blower. (Warning: Minimum air flow is required for proper operation.) Electrical Disconnect on all models, including 460 volt. Scholar III Ventilator PDS 01/2013 new 12 Scholar II Ventilator PD, 3/03-4

13 Optional Controls Control Ventilation. A field or factory installed carbon dioxide sensor controls the ventilation damper and onlyopens the damper when CO2 levels exceed a specified level. Demand control ventilation saves money and utility costs by ventilation the classroom based upon need. (Note not available on units with a manual fresh air damper). Ventilation Controls. The two position motorized damper (ventilation option "B") can be equipped with an exhaust air fan speed control which controls the ventilation exhaust blower independent of the fresh air intake blower. Other Condensate freeze protection kit. Recommended on units with a DX heating coil to prevent the water created during the defrost cycle from freezing in the pan and condensate line. Side Return Air Grilles. Aluminum grille replaces stamped slots on left and right side of the cabinet. Condensate line freeze protection. (Only required on units with a DX heating coil.) Anti-microbial light. A germicidal UV light destroys toxic bacteria, viruses and mold on the indoor coil. Field or factory installed. GreenWheel & GreenCube ERV exhaust air grille. Aluminum grille replaces stamped slot. Model Identification SVI Nominal Air Delivery 1000 = cfm 2000 = cfm Power Supply A = 208/230V,1ø,60Hz C = 208/230V,3ø,60Hz D = 460V,3ø,60Hz Configuration N = Manual Damper H = GreenWheel ERV B = Motorized Damper J = Power Vent with Motorized Damper Q = GreenCube ERV Cooling CW = Chilled Water Coil DX = Direct Expansion Scholar III Ventilator Indoor Heat kw (Hot Water) Summary Electrical Ratings (Wire & Circuit Breaker Sizing) Ventilation Configurations: Manual Damper, up to 15% outside air ( N ) and Motorized Damper, up to 450 CFM of outside air with pressure relief ( B ) BASIC MODEL ELECT. HEAT 000 = None 050 = 5 kw 075 = 7.5 kw 100 = 10 kw 150 = 15 kw VOLTAGE Ph-Hz SPPE 3 SPPE 3 SPPE 3 SPPE 3 SPPE 3 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 SVIA1000A 208/ SVIA2000A 208/ SVIA1000C 208/ SVIA2000C 208/ SVIA1000D SVIA2000D Scholar III Ventilator PDS 01/2013 new

14 Summary Electrical Ratings (Wire & Circuit Breaker Sizing) Ventilation Configuration: PowerVent with Motorized Damper & Pressure Relief, up to 450 CFM of Outside Air and Pressure Relief. Ventilation Configuration ( J ) ELECT. HEAT 000 = None 050 = 5 kw 075 = 7.5 kw 100 = 10 kw 150 = 15 kw BASIC MODEL VOLTAGE Ph-Hz SPPE 3 SPPE 3 SPPE 3 SPPE 3 SPPE 3 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 SVIA1000A 208/ SVIA2000A 208/ SVIA1000C 208/ SVIA2000C 208/ SVIA1000D SVIA2000D Summary Electrical Ratings (Wire & Circuit Breaker Sizing) Ventilation Configuration: GreenWheel Energy Recovery Ventilator ( H ) ELECT. HEAT 000 = None 050 = 5 kw 075 = 7.5 kw 100 = 10 kw 150 = 15 kw BASIC MODEL VOLTAGE Ph-Hz SPPE 3 SPPE 3 SPPE 3 SPPE 3 SPPE 3 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 MCA 1 MFS 2 SVIA1000A 208/ SVIA2000A 208/ MCA = Minimum Circuit Ampacity (Wiring Size Amps) 2 MFS = Maximum Fuse Size 3 SPPE = Single Point Power Entry MCA & MFS are calculated at 230 volts. This chart should only be used as a guideline for estimating conductor size and overcurrent protection. For the requirements of specific units, always refer to the data label on the unit. Unit Load Amps UNITS WITH ELECTRIC HEAT BASIC MODEL VOLTAGE Ph-Hz VENTILATOR AMPS (max.) LOAD OF RESIS- TIVE HEATING ELEMENTS ONLY (in amps) TOTAL MAXIMUM HEATING AMPS 1 Config. Option Config. (B & N) POWERVENT (J) GREENCUBE (Q) B & N J Q 5 kw 7.5 kw 10 kw 15 kw SVIA1000A /1/ n/a n/a n/a n/a SVIA2000A /1/ n/a n/a n/a n/a 1 Total Maximum Heating Amps = Total Amps with the Indoor Motor, Ventilation Motors and Electric Heat Operating at the same time. Heating kw is rated at 240 volts. Derate heater output by 25% for operation at 208 volts. Values shown are maximum phase loads. Loads are not equally balanced on each phase. Scholar Unit Ventilator - Motors BASIC MODEL MOTORS (VOLTS / HZ / PH) INDOOR BLOWER MOTOR Scholar III Ventilator PDS 01/2013 new 14 Scholar II Ventilator PD, 3/ kw 7.5 Motorized & Manual Damper kw kw VENTILATION MOTORS PowerVent w/motorized Damper GreenCube ERV RPM 1 FLA 2 HP 3 AMPS AMPS AMPS OAM 4 OAM 4 EXM 5 OAM 4 EXM 5 SVIA1000A 208/ / SVIA2000A 208/ / RPM = Revolutions per Minute 4 OAM = Outside Air Mover 2 FLA = Full Load Amps 5 EXM = Exhaust Air Mover 3 HP = Horsepower Electric Heat Table OUTPUT HEATER KW Volt (BTUH) 16,380 24,500 32, Volt (BTUH) 12,290 18,240 24,750 36, Volt (BTUH) 16,380 24,500 32,670 49,150 15

15 Dimensional Data (in inches) Note: Dimensional tolerance ± Air Filters Qty per unit Size Type MERV 1 Rating Return Air Filter 2 46 x 24 x 2 Pleaded, disposable 7 2 Fresh Air Ventilation Filter 1 12 x 20 x 1 Fiberglass, disposable N/A Exhaust Air Ventilation Filter 1 12 x 20 x 1 Fiberglass, disposable N/A 1 MERV = Minimum Efficiency Reporting Value 2 Standard return air filter has MERV rating of 7. Optional filters are available with MERV ratings of 8 and Scholar III Ventilator PDS 01/2013 new

16 Notes Please consult the Marvair website at for the latest product literature. Detailed dimensional data is available upon request. A complete warranty statement can be found in each product s Installation/Operation Manual, on our website or by contacting Marvair at As part of the Marvair continuous improvement program, specifications are subject to change without notice. P.O. Box 400 Cordele, GA Seedling Drive Cordele, GA Ph: Fax: marvair@airxcel.com Internet: Scholar III Ventilator PDS 01/2013 new 16 The Educated Air Conditioning Choice