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Summary of Contents for Spring Air Systems Rev Low
- Page 1 REV LOW Engineering Manual ___________________________ Spring Air Systems Inc., Oakville, Ontario Phone (905) 338-2999, Fax (905) 338-0179, info@springairsystems.com www.springairsystems.com...
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Page 2: Table Of Contents
REV LOW Engineering Manual Table of Contents Introduction Operation Variflow Baffles Model Number Designation REV LOW Water Wash Hood and Damper Assemblies REV LOW REV LOW Exhaust Calculations Exhaust Duct Sizes Make Up Air REV LOW Systems REV LOW Controllers... -
Page 3: Introduction
What is a REV LOW hood? The REV LOW hood is available in two types; a water wash and dry grease extractor. The water wash hood is automatically cleaned in place at the end of each cooking day. The REV LOW dry extractor is manually cleaned the dry extractor has inserts that are removed daily and washed in your dishwasher or pot sink. -
Page 4: Operation
The REV LOW Hood Model DD-B-F Figure 1 Optimizing the amount of air mixture that enters the core extractor slot is the key to the REV LOW system. The REV LOW hood must incrementally maximumize the amount of the air mixture that enters the slot and minimize the amount of roll back into the canopy as the total amount of the air mixture deviates along the length of the cooking lineup. -
Page 5: Variflow Baffles
Low Heating Costs The Spring Air REV LOW Hood System is designed to minimize the net exhaust air from the building. Less net exhaust means less heating of fresh air or supply air into the building. -
Page 6: Model Number Designation
Model Number Designation The Spring Air Systems REV LOW Hood is available in three basic types 1. Continuous cold water spray/hot water wash - “C” 2. Hot water wash - “H” 3. Dry Ventilator - “D” Each type of hood provides varying degrees of grease extraction efficiency, automatic/manual wash, and exhaust fire dampers. -
Page 7: Water Wash Rev Low
Water Wash REV LOW Hoods Automatic Wash: Type “C” and “H:” Ventilators SPRING AIR SYSTEMS ventilators are available with either automatic or manual wash systems. All water wash ventilators must be interconnected with a water wash control panel. The “C” and “H” ventilators have incorporated a water wash manifold into the high efficiency extractor. - Page 8 0.52 0.63 13.0 3962 10.4 0.56 0.63 13.5 4115 11.3 0.56 0.69 14.0. 4207 11.3 0.56 0.69 14.5 4420 12.0 0.60 0.73 15.0 4772 12.0 0.60 0.73 Chart No.2 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
- Page 9 Water Wash REV LOW Hoods TYPE “C” Core Extractors - Water Wash The SPRING AIR SYSTEMS type “C” core extractor has the highest grease extraction efficiency available in a water wash ventilator. The contaminated exhaust air enters the extractor slot A and flows through a transition zone to the VORTEX CHAMBER B.
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Page 10: Hood And Damper Assemblies
TYPE “H” Core Extractors - Water Wash The SPRING AIR SYSTEMS type “H” core extractor is a high efficiency water wash grease extractor. The contaminated air enters the extractor slot A and flows through the transition zone to the VORTEX CHAMBER B. - Page 11 FENWALL DETECTOR AT EACH EXHAUST DUCT COLLAR ON EVERY HOOD 120V/1/60 - 3 AMPS - WIRE EACH SOE IN PARALLEL. DAMPER SOLENOID “T” Electrical Wiring at SOE Enclosure Figure 10 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
- Page 12 FIRE DAMPER PIN FIRE DAMPER PIN POST (DAMPER OPEN) (DAMPER CLOSED) SIDE VIEW DAMPER CLOSED POSITION SIDE VIEW DAMPER OPEN POSITION END VIEW Arrangement “F” Fire Damper Figure 12 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
- Page 13 The fusible link should be examined periodically in accordance with the NFPA-96 (SPRING AIR SYSTEMS recommends inspection every six months.) Arrangement “D” Fire Damper cross Section Figure 13B ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
- Page 14 42” (1067 mm) off the finished floor. A water line from a hot water tank is connected to the inlet of the water wash panel. An interconnecting water line is piped from the outlet of the wash panel to the 3/4” (19 mm) inlet of the REV LOW hood. A 2” (52 mm) drain on the hood is connected to an open hub drain and then to a grease interceptor.
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Page 15: Dry Rev Low
Figure 15 TYPE “D” GREASE EXTRACTOR The SPRING AIR SYSTEMS type “D” core extractor is a high efficiency extractor. The type “D” core extractor removes grease, dirt and lint through centrifugal force. Removing the front access door and wiping the interior with a damp cloth manually wash the core extractor chamber. -
Page 16: Rev Low Exhaust Calculations
WARNING The REV LOW method is an excellent guide to assist in calculating the TOTAL EXHAUST (TEX) volumes, but consideration must be made for the conditions within the kitchen. i.e. location of the hood to doors, windows, and pass through which might create a draft. - Page 17 Wok – two hole 60 Wok –three hole 90 1400 Woodstone Oven 64 Upright Broiler 2 shelf 36 Upright Broiler 3 shelf 36 1050 Warming Lamp 18 Chart No. 4 ______________________________________________________________________ Spring Air Systems RevLow Engineering Manual Revision 2.0 -021902...
- Page 18 TYPICAL HANGER ROD BRACKET LOCATION - 4 SUPPLIED. DUCT LENGTH TO SUIT EXHAUST VOLUME. STAINLESS STEEL GREASE CUP. REMOVEABLE GREASE INSERT. VARIFLOW BAFFLES. Typical Island REV LOW dimensional drawing model DD-B-F-I Two Hoods shown Figure 17 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
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Page 19: Exhaust Duct Sizes
One excellent method of introducing makeup air is through a make up air plenum built into the ventilator. SPRING AIR SYSTEMS has two optional make up air arrangements; MP and MC. Directing the make up air through the exhaust hood ensures the correct quantity of make up air and good air distribution. -
Page 20: Make Up Air
80% of the total exhausts air volume. A fire damper is located at the supply air inlet on top of the ventilator. Model DD-B-F-MC Figure 19 Two Models DD-B-F-I-MC Figure 20 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902... -
Page 21: Rev Low Systems
Spring Air Systems Inc. designs a supply unit especially for the REV LOW hoods; the SFA series. The SFA is available in a vertical or horizontal arrangement, indoor or outdoor and with integral gas reheat and remote gas and electric reheat. -
Page 22: Rev Low Systems
The remaining 20% required to balance the restaurant must be supplied through the dining room air conditioning unit(s) economizer or through some other makeup air unit. (Such as a Spring Air Systems SFA-IGO Unit) ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902... - Page 23 Not available with power vent. 112,500 BTU/hr with power vent. 150,000 BTU/hr with power vent. All units require the following clearances: Front: 48” Bottom: 0” Sides: 24” Rear: 6” Chart No. 6 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902...
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Page 24: Rev Low Controllers
Spring Air Systems can also supply the SUMMER/WINTER 4" motor starters from stock. 6.5" RPD11 Controllers Figure 26 ______________________________________________________________________ Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902... -
Page 25: Rev Low Work Sheet
Specification Refer to individual specification sheets for the model and type of REV LOW hood selected. See Chart No. 1 for a list of the various alternatives available. Refer to the individual specification sheets for SFA models and REV LOW hood controllers available. - Page 26 Other Fine Products From SPRING AIR SYSTEMS... • Water Wash Ventilators ♦ Hot Water Wash ♦ Cold Water Spray/Hot Water Wash ♦ Water Wash Control Panels • Dry Extractor Hoods • REV-LOW Hoods • Cartridge Hoods • Filter Hoods • Surface Fire Suppression •...
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