Votos - 4, Puntuación media: 4.5
(
)
)
|
Resumen del manual
The photocell is a ceramic disk coated with cadmium sulfide and overlaid with a conductive grid. Electrodes attached to the ceramic disk transmit an electrical signal to the primary control. In darkness, cadmium sulfide has a very high resistance to the passage of electrical current. In visible light, its resistance is very low and current is allowed to pass. The entire cell is hermetically sealed (glass to metal) to prevent cell deterioration. M7854 PLUG-IN-CELL MOUNTING BRACKET SOCKET LEADWIRE Fig. 1. C554A Cadmium Sulfide Flame Detector (cad cell). INSTALLATION When Installing this Product… 1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition. 2. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4. After installation is complete, check out product operation as provided in these instructions. INSTALLATION INSTRUCTIONS CAUTION Disconnect power supply before beginning installation to prevent electrical shock or equipment damage. Location The burner manufacturer determines the cad cell location (see Fig. 2). If an alternate location must be used, make sure that: . The cell has a clear view of the flame. . Ambient light does not reach the cell. . Ambient temperature at the cell location is below 140°F (60°C). . Movement, shielding, or radiation of metal surfaces near the cell do not affect cell function. IGNITION CAD CELL TRANSFORMER IGNITION ELECTRODE AIR TUBE NOZZLE M7857 Fig. 2. Cad cell location. Mounting Direct Replacement . Remove the cell from the socket. . Insert the mounting bracket into the socket slot (Fig. 3) as far as it will go. NOTE: Bend the mounting bracket to fit, if necessary. ®U.S. Registered Trademark Copyright © 1996 Honeywell Inc. • All Rights Reserved 60-0164-1 C554A CADMIUM SULFIDE FLAME DETECTOR . While holding the mounting bracket in the slot, insert the screwdriver in the other end of the slot (Fig. 4). Bend the screwdriver first to the left, then to the right, to crimp the end of the mounting bracket and hold it in position. . Remove the screwdriver and replace the cell. . Mount the new cell and bracket assembly in the location of the old assembly. BRACKET SLOT SOCKET LEADWIRE M7853 Fig. 3. Insert mounting bracket into socket slot. Oil Line Mounting If desired, mount the C554A on the oil line using the oil line adapter bracket and the mounting bracket supplied. . Remove the cell from the socket. . Insert the mounting bracket into the slot on the socket (Fig. 3) as far as it will go. NOTE: Bend the mounting bracket to fit, if necessary. . While holding the mounting bracket in the slot, insert the screwdriver in the other end of the slot (Fig. 4). Bend the screwdriver first to the left, then to the right, to crimp the end of the mounting bracket and hold it in position. . Remove the screwdriver and replace the cell. . Slide the mounting bracket into the sleeve on the oil line adapter bracket. Push firmly to lock the cell and the bracket assembly in position. . Mount the oil line adapter bracket on the oil line using the screw and nut provided (Fig. 5). BRACKET BRACKET SOCKET SOCKET LEADWIRE SCREWDRIVER SCREWDRIVERSLOT INSERT SCREWDRIVER AND MOVE IN DIRECTION SHOWN BY ARROWS TO SECURE BRACKET IN SOCKET M7855 Fig. 4. Insert screwdriver to secure bracket in socket. 60-0164—1 2 C554A CADMIUM SULFIDE FLAME DETECTOR OIL LINE SCREW OIL LINE ADAPTER BRACKET TO NOZZLE MOUNTING BRACKET LEADWIRE SOCKET PLUG-IN CELL M7856 C554A CADMIUM SULFIDE FLAME DETECTOR OIL LINE SCREW OIL LINE ADAPTER BRACKET TO NOZZLE MOUNTING BRACKET LEADWIRE SOCKET PLUG-IN CELL M7856 Fig. 5. Use oil line adapter bracket to mount C554A on oil line. Wiring Disconnect power supply before beginning wiring to prevent electrical shock or equipment damage. All wiring must comply with local electrical codes and ordinances. See Fig. 6 for a typical C554A hookup to the oil burner primary control. T T F F THERMOSTAT (24 VOLT) C554A CAD CELL OIL BURNER RELAY M7858 Fig. 6. Typical hookup for C554A to oil burner primary control. CHECKOUT To check cad cell operation, use the following procedure: . Disconnect cad cell leadwires; then start burner. Shortly after burner starts, place a temporary jumper between terminals F-F. Connect an ohmmeter across cad cell leadwires; resistance should be less than 1600 ohms. . Stop burner and remove temporary jumper. . With burner off, check dark cell resistance across cad cell leadwires. Resistance should be greater than 20,000 ohms. NOTE: If cell resistances are different than specified, recheck wiring and location of cell. If necessary, replace plug-in portion of cell, Honeywell part no. 130367 Replacement Cad Cell. . Reconnect cad cell leadwires. Check the Protectorelay. (burner sequencing relay) control according to the instructions packed with the control. SERVICE AND REPLACEMENT Under normal opera...