Installation Instructions Document No. 546-00310 November 15, 2006 Fume Hood Monitor Page 1 of 6 Product Description The Fume Hood Monitor (FHM) (Figure 1) provides visual and audible alarms to alert a fume hood user of airflow conditions. The mounting plate is designed for fume hoods with or without existing cutouts. This kit contains: • Fume Hood Monitor with mounting plate • Three removable wire connectors • Four sheet metal screws • Two machine screws • 2 ft. (0.6 m) air sensor hose • Plastic sidewall adapter and lock ring Product Numbers 546-00303A Fume Hood Monitor 546-00303B Fume Hood Monitor mounting plate Warning/Caution Notations CAUTION: Equipment damage or loss of data may occur if the user does not follow procedure as specified. Required Tools For a fume hood with an existing cutout: • Medium-duty electric drill • 1/2-inch. (13.0 mm) drill bit • Small flat-blade screwdriver • Small Philips screwdriver • Wire strippers For a fume hood without an existing cutout: • Medium-duty electric drill • 1/8-inch (3.0 mm) drill bit • 1/2-inch (13.0 mm) drill bit • Metal-cutting saw or 3/ 4 in. and 1 in. drill bits or hole saws • Small flat-blade screwdriver • Small Philips screwdriver • Wire strippers Expected Installation Time 27 minutes Prerequisites • Power cable in place If using a field panel: • Floor Level Network (FLN) cable from the field panel to the FHM in place If using an external alarm or auxiliary DI connection: • External alarm or auxiliary DI cable from source to FHM in place Figure 1. Fume Hood Monitor. Instructions NOTE: Mount the FHM so that the fume hood operator can easily read its display and can easily reach its buttons. This height is approximately 4-1/2 ft. to 5 ft. (1.4 to 1.5 m) from the floor. 1. Choose the mounting location for the FHM. The FHM should be mounted directly on the fume hood and can be mounted over a pre-existing cutout on the fume hood. See Figure 2 for installation clearance requirements. Document No. 546-00310 Installations Instructions November 15, 2006 Figure 2. Installation Clearance Requirements. NOTE: Clearance is needed to prevent the sensor air hose from bending or kinking, and to insert the Portable Operator’s Terminal Cable. 2. Confirm that an earth ground is connected to the mounting plate. To do this, make sure that the following conditions are met: a. The conduit junction box is grounded, or b. The fume hood enclosure is grounded, or c. A separate wire is connected between the earth ground and the mounting plate. 3. Continue with one of the following mounting methods: Mounting Plate Installation with an Existing Cutout or Mounting Plate Installation without an Existing Cutout. Mounting Plate Installation with an Existing Cutout 1. See Figure 3. If the fume hood is provided with a 2 inch × 4 inch (5.0 × 10.0 cm) cutout with an electric utility box, then use the provided machine screws to attach the mounting plate to the electric utility and skip to Sidewall Hole Mounting. If the fume hood has no electric utility box, make sure that the cutout provides enough clearance for the air sensor hose and to connect the power, FLN, external alarm, and auxiliary DI wires. Then continue to Step 2. Figure 3. Installation with an Existing Cutout. 2. Position the bracket over the opening and mark the locations of the two mounting holes. 3. Using the 1/8-inch (3.0 mm) drill bit, drill the two mounting holes. 4. Using the screws provided, attach the mounting plate to the mounting surface. 5. Proceed to Sidewall Hose Mounting. Page 2 of 6 Siemens Building Technologies, Inc. Document No. 546-00310 Installations Instructions November 15, 2006 Mounting Plate Installation without an Existing Cutout Use one of the following methods: Using a drill or Using a metal-cutting saw for cutting the mounting hole depending on the tools available. Using a drill: 1. See Figure 8. Use this diagram to locate the holes from the corner of the case. Do not use the corner of the mounting plate as the reference point. Mark the locations on the fume hood. 2. See Figure 4. Using the mounting plate as a template, mark the locations of the two mounting holes. 3. Drill the required holes using the locations and sizes shown in Figure 8. NOTE: If FLN or AUX connections are not required for installation, then only drill holes for the air tube and power. 4. Using a 1/8-inch (3.0 mm) bit, drill the two mounting holes. 5. Using the screws provided, attach the mounting plate to the mounting surface. Using a metal-cutting saw: 1. See Figure 9. Use this diagram to locate the rectangular cutout from the corner of the case. Do not use the corner of the mounting plate as the reference point. 2. Using the mounting plate as a template, mark the locations of the two mounting holes and the 2 inch × 3 inch (5.0 × 8.0 cm) cutout. See Figure 4. Figure 4. Installation without an Existing Cutout. 3. Using a metal-cutting saw or other suitable tool, remove the marked rectangular area. 4. Using a 1/8-inch (3.0 mm) bit, drill the two mounting holes. 5. Using the screws provided, attach the mounting plate to the mounting surface. 6. Proceed to Sidewall Hose Mounting. Sidewall Hose Mounting: NOTE: The location of the sidewall adapter greatly affects the performance of the Fume Hood Monitor. Use the FHM Hood Evaluation Kit, part number 546-00320, to accurately determine the location for the sidewall adapter. 1. Mark the location of the hole for the air sensor hose 3 inches (7.5 cm) above the highest sash opening and 6 to 8 inches (15.0 to 20.0 cm) back from the sash track. NOTE: The hole location for the air sensor may vary slightly due to hood construction. On fume hoods with a mechanical stop, do not use the mechanical stop as a reference point. Use the highest possible open position of the sash as the reference point. 2. At the mark found in step 1, drill a 1/2- inch (13.0 mm) hole in the sidewall of the fume hood. CAUTION: If the construction of the fume hood contains fiber-cement panels, then use diamond core drill bits to drill holes inside the fume hood. Fiber-cement panels are used for impact, moisture, and fire resistant applications. Diamond core drill bits are designed for hard and abrasive materials. Standard drill bits may crack and damage fiber-cement panels. Siemens Building Technologies, Inc. Page 3 of 6 Document No. 546-00310 Installations Instructions November 15, 2006 Page 4 of 6 Siemens Building Technologies, Inc. 3. Insert the plastic sidewall adapter (provided) through the hole from the inside of the hood wall and lock it in place from the outside with the plastic lock ring (provided). See Figure 5. 4. Using a screwdriver and the two-position removable wire connector (provided), connect the power wires to the removable wire connector as shown in Figure 7. (Steps 5 and 6 are optional) 5. If using a field panel: Use the wire strippers, and remove 1/4- inch (6.35 mm) of insulation from the ends of the FLN trunk wires. Using a screwdriver, terminate the wires from the field panel to the three-position removable wire connector. See Figure 7. Figure 5. Installing the Plastic Sidewall Adapter and Plastic Lock Ring. 4. Cut the air sensor hose (provided) to fit between the sidewall adapter and the FHM. Leave enough slack so that when the hose is installed, no kinks are created. 5. Carefully insert one end of the air sensor hose onto the end of the plastic sidewall adapter and insert the other end through the hole in the mounting plate. Hose and Wire Connections: 1. Insert the end of the air sensor hose onto the air sensor connection on the back of the FHM. See Figure 6. Figure 7. Location of Wire Receptacles. 6. If using the auxiliary DI(s) or an external alarm: Use the wire strippers, and remove 1/4-inch (6.35 mm) of insulation from the ends of the auxiliary or external alarm wires. Using a screwdriver, terminate the wires from the DI or external alarm to the four-position removable wire connector. See Figure 7. 7. Securely insert all wire connectors into their appropriate receptacles. Leave all unused wire connectors in their mounting receptacles. 8. Place the FHM onto the mounting bracket, being careful not to kink the air sensor hose or wires. Figure 6. Wiring and Hose Connections. 9. To secure the FHM to the fume hood, tighten the screws at the top and bottom tabs of the mounting plate. 2. Insert all wires that will be terminated to the FHM through the hole in the mounting plate. 3. Using the wire strippers, remove 1/4-inch (0.5 cm) of insulation from the ends of the power wires. The installation is now complete. Document No. 546-00310 Installations Instructions November 15, 2006 Siemens Building Technologies, Inc. Page 5 of 6 Figure 8. Full Size Template: Location of Holes for Using a Drill. Document No. 546-00310 Installations Instructions November 15, 2006 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. © 2000 Siemens Building Technologies, Inc. Siemens Building Technologies, Inc. Landis & Staefa Division 1000 Deerfield Parkway Buffalo Grove, IL 60089-4513 U.S.A. Document No.: 546-00310 Printed in the U.S.A. Page 6 of 6 Figure 9. Full Size Template: Location of Hole for Using a Metal-Cutting Saw. Next >