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Hersteller: Marley Engineered Products Dateigröße: 589.14 kb Dateiname: Unterrichtssprache:

Use adequate size wire for all branch and feeder runs. 2. Install all wiring, protection and grounding in accordance with the National Electrical Code (NEC) and all local requirements. WARNING: THIS FAN HAS AN INTERNAL SELF RESETTING THERMAL OVERLOAD PROTECTOR. ALWAYS DISCONNECT FROM POWER SUPPLY BEFORE SERVICING. CAPACITOR AMP PLUG GREEN RED BLACK RED M F HI SPEED LOW SPEED EARTH WHITE BLACK HI SWITCH BLACKBLACKBLACKBLACKBLACKGREENGND BLACK L1 COMMON WHITE LOW MOTOR (W) N (B) L2 3. Remove two screws from switch box and remove cover. NOTE: Motor is prewired to high/low toggle switch. (See wiring diagram, Figure 5.) 4. Run wires from power supply to switch box using appropriate wiring according to local code. (Use a flexible connector to allow for possible angle adjustment.) 5. Connect wires to the two lead wires provided with wire nuts (not included). Connect black supply to center terminal of rocker switch, white neutral to white (for 220 volt units, L2 will connect to black or white with black tape lead), green grounding lead to grounded conductor of supply circuit. No loose strands or loose connections should be present. After splices are made, wires should be spread apart so that the green and white wires are on one side of outlet box and the black wires are on other side. Turn splices upward and carefully push all wiring into outlet box. 6. Replace switch box cover. 7. Unit is ready for operation. CAUTION: Make sure amp rating of any ON/OFF switch exceeds nameplate amp rating of motor. 8. Restore power. NOTE: Air curtain has high/low selector switch. See Operation section for proper setting instructions. 9. Upon completion of all installation, inspect unit for excessive vibration during operation. If excessive vibration is noticeable, disconnect power supply. Inspect mounting installation and refer to Troubleshooting Chart for probable cause. AMP PLUG BLACK HI SPEED BLACK EARTH PURPLEWHITEBLUEGREENBLACK L1 MOTOR LOW HI GREEN M F SWITCH COMMON WHITE WHITE LOW SPEED RED RED GND (W) N (B) L2 Above for 1/4, 1/2 and 3/4 HP 120 volt motors and Above for 1/4 HP 220 volt motor. 1/2 and 3/4 HP 220 volt motors. 3 Operation 1. After power has been connected to unit, fans will start in either preset (high/low) speed selection. 2. Air velocity is controlled by selection of high or low speed indicator. This feature allows the setting of air velocity to individual desired performance and energy efficiency. 3. Air direction at outlet can be controlled by adjustable vanes at the nozzle which compensates for possible draft conditions. NOTE: Air direction settings are shown in Figures 6, 7, and 8. IMPORTANT. IN FREEZER APPLICATIONS, UNIT IS ALWAYS MOUNTED OUTSIDE (WARM SIDE) OF FREEZER OR COOLER. NOTE: Cold air will try to escape near floor level. Warm air will try to penetrate curtain near top of doorway. Air flow can be controlled by direction of nozzle louvers and by high/low settings. Figure 6 - Desired Air Flow Adjustment for Temperature and Humidity Control. Figure 7 - Desired Air Flow Adjustment for Insect and Dust Control. Figure 8 - Desired Air Flow Adjustment for Freezer and Cooler Applications. Maintenance WARNING: ALWAYS DISCONNECT POWER SUPPLY BEFORE SERVICING. LUBRICATION Ball bearings are permanently lubricated and require no further lubrication. CLEANING 1. The air door cabinet may be wiped off with a damp cloth. Do not allow motor to get wet. Do not use solvents or harsh detergents. NOTE: Keep air intake louvers clear of dirt and dust accumulation which could affect performance. 2. Check blower wheels for accumulated dirt twice a year and clean. If disassembly is required, see GENERAL SERVICING section. GENERAL SERVICING WARNING: IF SERVICING IS REQUIRED, IT SHOULD BE DONE BY QUALIFIED PERSONS ONLY. WARNING: ALWAYS DISCONNECT POWER SUPPLY BEFORE SERVICING. 1. Remove motor/blower assembly. All motor/blower assemblies are designed for easy removal and service with wing nuts and quick disconnect electrical connections. 2. Place motor/blower assembly on workbench. 3. To replace blower wheel, remove the three slotted hex head screws on outer blower ring assembly (See Figure 9, Replacement Parts Illustration.) The wheel is held onto shaft by one hex head screws. IMPORTANT: NOTE POSITION OF WHEELS TO PREVENT RUBBING WHEN REPLACED. 4. To remove motor: a. Remove blower wheels. (See Step 3 above.) b. Remove blower scrolI (six hex head screws). c. Unscrew and remove motor mounts. 5. Replace motor/blower assembly. 4 Troubleshooting Chart SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION Fan inoperative 1. Blown fuse or open circuit breaker. 2. Electricity turned off. 3. Loose cord connection. 4. Defective capacitor or motor. 1. Replace fuse or reset circuit breaker. 2. Contact local power company. 3. Re-check all connections. 4. Replace. Excessive noise 1. Wheel rubbing on housing. 2. Motor base or blower not securely anchored. 3. Defective motor bearings. 1. Center wheel. 2. Tighten mounting bolts. 3. Replace motor. Insu...

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