Document 470399 Kitchen Hoods Type I and Type II Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Type I Type II General Safety Information Only qualified personnel should install this system.
Receiving Upon receiving the product, check to ensure all items are accounted for by referencing the delivery receipt or packing list. Inspect each crate or carton for shipping damage before accepting delivery. Alert the carrier of any damage detected. The customer will make a notation of damage (or shortage of items) on the delivery receipt and all copies of the bill of lading which is countersigned by the delivering carrier. If damaged, immediately contact your Accurex Representative.
Canopy Hood Weights Hood Depth (Multiply by Length) for Hood Weight* Hood Model 2 ft .609 m 2.5 ft .762 m 3 ft .914 m 3.5 ft 1.067 m 4 ft 1.219 m 4.5 ft 1.372 m 5 ft 1.524 m XB, XK, XX, XTEW 30 lbs/ft 44.64 kg/m 32 lbs/ft 47.62 kg/m 35 lbs/ft 52.09 kg/m 38 lbs/ft 56.55 kg/m 40 lbs/ft 59.53 kg/m XB, XK, XX, XTDW 36 lbs/ft 53.57 kg/m 38 lbs/ft 56.55 kg/m 41 lbs/ft 61.01 kg/m 44 lbs/ft 65.48 kg/m 46 lbs/ft 68.46 kg/m XB, XK, XXFW 40 lbs/ft 59.53 kg/m 44 lbs/ft 65.48 kg/m 48 lbs/ft 71.
Proximity Hood Weights Hood weight is determined using a simple formula. Select the figures provided in columns A and B (see tables) from the three respective categories—Hood Width, Filter Type and Hood Height—based on the hood received. Total the three numbers in column A and the three numbers in column B. Place the sum for column A and the sum for column B in the Hood Weight equation where shown and solve for the total Hood Weight.
Prior to Installation Wall or Single Island Canopy Hoods Prior to installation, check with the Authorities Having Jurisdiction (AHJ) on clearance requirements to structures surrounding the hood and other equipment. Verify there is enough space to safely lift hood up into its operating position and enough clearance around the hood for components like fire system connections, hood lights, hood control components, etc.
Wall or Single Island Canopy Hoods - continued NOTE All hanger brackets MUST be used and the hood must be properly supported while lifting to prevent damage or distortion to the hood. NOTE The hood MUST be hung evenly. If hung unevenly, this may cause grease drainage problems. Provide additional support if necessary so that the hood doesn’t move in a manner that is acceptable with the Authorities Having Jurisdiction (AHJ).
Filler Panel Installation Clearance Reduction Methods 1. Uncrate the hood and lay it on the floor with protective material between the hood and the floor. Clearance reduction methods have been evaluated and tested and are listed by UL (Underwriters Laboratory). The method of test was derived from the UL 710 test standard. 2. Bolt the filler panels together with 5/16 in. bolts provided in the hardware package. 3. Position the filler panels to the hood back, and tackweld them into place. HOOD HOOD 1.
Back and Front Clearance Reduction Options One inch (2.54 cm) layer of insulation in 3 in. (7.62 cm) back stand-off meets zero inch requirements for clearance to combustible surfaces as outlined under the clearance reduction methods. Three inches (7.62 cm) uninsulated back stand-off meets NFPA 96 requirements for clearance to limited combustible surfaces. Installing Duct Collars Exhaust Duct Collars 1. The exhaust duct connection needs to be located within 48 in. (121.
Installing the Back Supply Plenum Ductwork Install the Supply Duct Collar Exhaust - As specified in NFPA 96, Ch. 7.5 (latest 1. Find the center of the back supply plenum. edition), exhaust duct systems must be constructed in the following manner: 2. If the back supply plenum is to have one opening, cut the opening such that it is centered at L /2 from the plenum end. (Fig. 1) 3.
Installing Front/Side External Supply Plenums 1. Insert 1/2 in. (12.7 mm) diameter threaded rod (by others) into hanger brackets on the external supply plenum top. Raise and hang the external supply plenum from adequate roof or ceiling supports. Using the Uni-strut THREADED ROD SUPPLIED BY OTHERS NOTE UNI-STRUT (U-CHANNEL) SUPPLIED BY OTHERS EXTERNAL SUPPLY PLENUM END VIEW HOOD The uni-strut (supplied by others) supporting the hood may be cantilevered over the end of the hood.
Installing Backsplash Panels Flat Backsplash Panel Insulated Backsplash Panel Material: Stainless Material: Stainless Insulation: 1 in. (25.4 mm) 1 IN. (25.4 MM) WALL HEIGHT LENGTH NOTE NOTE • Backsplash length up to 47.25 inches (1200.15 mm) wide ship in one piece; panel lengths over 47.25 inches (1200.15 mm) ship in multiple pieces when panel height is <66 inches (1674.4 mm) or >80 inches (2032 mm). Panels up to 45 in. (1143 mm) wide ship in one piece; over 45 in. (1143 mm) in multiple pieces.
Installing End Skirts Electrical Connections 1. After the hood is hung in position, line up the top of the end skirt with the end panels of the hood. See pages 25-28 for more wiring details regarding the fire system, fan control and switches. 2. Drill a hole in the hood end panel to line up with the hole in the end skirt. Attach the end skirt with a 1/4 in. bolt and cap nut to the inside of the hood, or tack-weld the end skirt to the hood. Hood Lights 3.
Installing Enclosure Panels Double Island Canopy Style Hoods Before installing the enclosure panels, make sure the hood is hung in position with all the ductwork attached and all fire system and electrical connections completed. 1. Position the end enclosure panels on the hood, and clamp into place with clamps provided or tack-weld the panels into place. 2. Fasten the end enclosure panels to the wall; method depends on wall construction. (Fasteners provided by others).
Proximity (Backshelf) Hoods A proximity style hood is designed to be mounted close to the cooking appliance and typically incorporates underhang instead of overhang as utilized with UL Vertical Distance canopy style hoods. Above Cooking Surface The proximity design, in addition to the hanger brackets, may include a back mounting flange. Therefore, hanging the hood differs slightly from that of a wall or single island canopy hood.
Balancing the Kitchen Exhaust System To determine the proper dining room air balance: CAUTION 1. Refer to engineering drawings to determine total exhaust CFM from dining areas. (exhaust fans, heating and air conditioning units, rest rooms, etc.) According to NFPA 96, Ch. 8-3 Replacement Air: Replacement air quantity shall be adequate to prevent negative pressures in the commercial cooking area(s) from exceeding 4.98 Pa (0.02 in. wg). 2. Determine the total CFM of make-up air supplied to dining area.
Testing Hood Air Volume the anemometer at the 2 in. (50.8 mm) distance and parallel to the filter. Both squareness and distance are very important for accuracy. Baffle Filter - Rotating Vane Method Rotating Vane Anemometer With all the filters in place, determine the total hood exhaust volume with a rotating vane anemometer as follows: Airflow 1. All cooking equipment should be on. 2 in. (50.8 mm) 2. Measure the velocities. Velocity measurements should be taken at five locations per filter.
Baffle Filter - Shortridge Method Place standoff spacers against face of outlet or inlet grill, filter, coil, etc. With all the filters in place, determine the total hood exhaust volume with a Shortridge meter as follows: 1. All cooking equipment should be on. If the hood has internal short circuit make-up air, it should be turned off. Edge of outlet/inlet active face area Maintain 1½ inch (38.1 mm) margin Maintain 1½ inch (38.1 mm) margin 2. Measure velocities • Set up the Shortridge meter. • For 20 in.
High Velocity Cartridge Filters - Rotating Vane Method Fig. 11 1/4 Width With all the filters in place, determine the total hood exhaust volume with a rotating vane anemometer as follows: 1/2 Width 1/4 Width 1/2 Height Inlet Height 1. All cooking equipment should be on. If the hood has internal short circuit make-up air, it should be turned off. 2. Measure velocities. Fig. 12 Velocity measurements should be taken at three locations per filter. These must be over the inlet opening as shown in Fig. 11.
High Velocity Cartridge Filters - Shortridge Meter Place standoff spacers against face of outlet or inlet grill, filter, coil, etc. With all the filters in place, determine the total hood exhaust volume with a Shortridge meter as follows: Edge of outlet/inlet active face area Maintain 1½ inch (38.1 mm) margin Maintain 1½ inch (38.1 mm) margin 1. All cooking equipment should be on. If the hood has internal short circuit make-up air, it should be turned off. 2.
Grease-X-Tractor™ High Efficiency Filters or Grease Grabber™ Multi-Filtration System Rotating Vane Method Fig. 14 1/2 Width 1/4 Width 1/4 Width 1/2 Height With all the filters in place, determine the total hood exhaust volume with a rotating vane anemometer as follows: 1. All cooking equipment should be off. If the hood has internal short circuit make-up air, it should be turned off. 2. Measure velocities 2 in. (50.8 mm) Measurement should be taken at six locations per filter.
Grease-X-Tractor™ High Efficiency Filters or Grease Grabber™ Multi-Filtration System Shortridge Method Inches Millimeters Imperial Conversion Factor 16 x 16 400 x 400 1.53 ft 2 .142 m2 16 x 20 400 x 500 2.00 ft 2 .185 m2 20 x 16 500 x 400 2.25 ft 2 .209 m2 20 x 20 500 x 500 3.00 ft 2 .279 m2 Nominal Filter Size (H x L) With all the filters in place, determine the total hood exhaust volume with a Shortridge meter as follows: 1. All cooking equipment should be on.
Perforated Face Supply - Rotating Vane Method 4. Calculate the perforated face panel volume using the following formula: 1. Hood set up. CFM = avg. velocity x length (in.) x height (in.) x 0.005 If the make-up air unit has a temperature control, it should be used to keep the supply air at the desired room discharge air temperature. m/hr = avg. velocity x length (m) x height (m) x 0.72 5.
Short Circuit Hood Supply - Rotating Vane Method All cooking equipment should be off. The hood exhaust should also be off. 1. Measure Velocities Velocity measurements should be made with a digital 2.75 in. (69.85 mm) rotating vane anemometer or its equivalent. One velocity measurement should be taken for every 8 in. (203.2 mm) of short circuit opening length, starting tight against one edge of the opening, and finishing tight against the other edge.
Exhaust Air Balancing Baffles This is a guide to assist in determining if multiple hoods on one fan can be balanced to have equal static pressure. For multiple hoods on one fan to achieve their designed exhaust flow, all of the hoods must have equal static pressure at their designed exhaust flow. The laws of physics force the static pressure for each branch of a duct system on one fan to always be equal.
Wiring Diagrams Amerex Wiring Plan View POWER SOURCE MANUAL RESET RELAY PRM ELECTRIC GAS VALVE MICROSWITCH INSTALLER PROVIDED JUNCTION BOXES BASIC WIRING DIAGRAM POWER SOURCE MANUAL RESET RELAY RED (COMMON) YELLOW (N.O) BLACK (N.C.) GAS VALVE NOTE: DO NOT USE YELLOW WIRE ON MICROSWITCH IN NORMAL INSTALLATION. THE YELLOW WIRE IS TO BE USED ONLY FOR EXTINGUISHER ALARM, LIGHTS, CIRCUITS, ETC. MICROSWITCH BASIC WIRING DIAGRAM MANUAL RESET RELAY RED (COMMON) L1 120V/60HZ L2 K1 Ka YELLOW (N.
Ansul Wiring Plan View Snap-Action Switches may be wired as shown. Typical examples shown. Equipment Manual Reset Relay Part No. 426151 Power to cooking equipment Reset Power Indicator GND NC Switch contacts shown with Ansul Automan in the cocked position Brown A Screw 5 B 4 120 VAC N Ansul Snap-Action Switch Part No. 423878 110 VAC/60Hz Shunt Trip Breaker NO Black Red L2 Neutral L1 Hot Relay Coil Input Electric gas valve - If reset relay is used, see option A or B at right.
Overall Wiring Plan View for Kitchen Systems with Make-Up Air Control Centers In this arrangement, single-point power to the make-up air (MUA) unit is fed to each individual exhaust fan disconnect from exhaust fan starters within the MUA control center. This arrangement can be used for constant volume systems only. The diagram below is generic. To see your job specific wiring requirements, refer to the wiring diagrams provided with the package.
Overall Wiring Plan View for Switch Panels The diagrams below show typical wiring for combined exhaust and supply switching when the switches are shipped loose for remote mounting, and for hood mounted switches. event the fire system is activated. The fire suppression micro-switch is provided as part of the fire suppression system and is normally mounted in the fire system control box. The diagram shows how to wire the exhaust and supply fan starters to the switches and fire suppression contact.
Maintenance Daily Maintenance 1. Wipe grease from exposed metal surfaces on the hood interior using a clean, dry cloth. Fig. 19 - CORRECT UPPER HANGER UPPER HANGER 2. Visually inspect the filters or cartridges for grease accumulation. CONDENSATE GUTTER 3. Remove grease cup, empty contents and replace cup. Weekly Maintenance 1. Remove the grease filters or cartridges and wash in dishwasher or pot sink. Fig.
2. Lifting the lower edge of the filter past the grease trough, continue to push the top of the filter into the channel. Step 3 Frequent Maintenance NOTE Required washing frequency is dependent on type of cooking and quantity of food cooked. 3. When the filter is even with the bottom rear filter channel, set the filter into the channel; Fig. 22. Fig. 22 - Remove filters from hood and place each filter in a whirlpool sink or dishwasher. - If using a whirlpool sink, cycle for 10 minutes.
Filter Washing Frequency Guide NOTE CAUTION Standard cooking will turn the beads yellow in color. Open flame cooking will cause the beads to blacken. Neither affects the performance of the beads.
Troubleshooting Problem: Exhaust fan is not operating or is not operating at design levels. Is the fan receiving power? Replace fuses, reset circuit breakers, check disconnect. Is the belt loose or broken? Replace or tighten belt. Is the fan rotating in correct direction? Have the electrician correctly wire the fan. Is the make-up air operating? Problems with make-up air may interfere with the exhaust fan. Check the manufacturer’s installation manual.
Troubleshooting Problem: Pilot lights are being blown out or cooking equipment is being cooled by make-up air. Are there drafts from make-up air? Try turning off or reducing the amount of make-up air; block off portions of the supply to direct air away from the problem area (test with cardboard first); remove any obstructions in front of supply that directs air toward cooking equipment. Problem: Cold air can be felt by the cook at the hood.
Replacement Parts FILTERS Part Number Filter Description (Height x Width) Part Number Description 457626 16 x 16 Aluminum Baffle Filter 850551 Light Switch Only 457628 16 x 20 Aluminum Baffle Filter 851776 Fan Switch Only 457632 20 x 16 Aluminum Baffle Filter 851777 Light Switch & Fan Switch ( 2 switches) 457634 20 x 20 Aluminum Baffle Filter 851778 Fan Switch & Heat Switch (2 switches) 457627 16 x 16 Stainless Steel Baffle Filter 851779 Exhaust, Fan & Supply Switch (2 switches) 457629 1
Maintenance Log Date ___________________Time _____________ AM/PM Date ___________________Time _____________ AM/PM Notes: ___________________________________________ Notes: ___________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _________________________________________________ _____________________________________
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