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Resumen del manual
© 2010 Chromalox, Inc. Type VUH Vertical Unit Heater Specifications – Table 1 Heating Capacity Volts Air Delivery Max. Dimensions (In.) Mtg. Mtg. Model Outlet Height Weight kW BTUH 1 Phase 3 Phase CFM FPM Temp. °F* (Ft.) A B C D E F H M (Lbs.) 208 VUH-C-30 30 102,000 – 240 2500 1200 96 33 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 480 VUH-C-40 38.5 136,000 – 240 2500 1200 108 30 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 39 480 VUH-C-50 50 170,000 – 480 2500 1200 120 27 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 *Based on 60°F entering air. **For instructions on VUH units rated S-10 kW refer to Bulletin PF450 ***For instructions on VUH unites rated IS-25 kW refer to Bulletin PF451 Figure 1 Figure 2 (Supersedes PF452-3)PF452-4VUH161-057824-001JULY, 20024 .... .... © 2010 Chromalox, Inc. Type VUH Vertical Unit Heater Specifications – Table 1 Heating Capacity Volts Air Delivery Max. Dimensions (In.) Mtg. Mtg. Model Outlet Height Weight kW BTUH 1 Phase 3 Phase CFM FPM Temp. °F* (Ft.) A B C D E F H M (Lbs.) 208 VUH-C-30 30 102,000 – 240 2500 1200 96 33 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 480 VUH-C-40 38.5 136,000 – 240 2500 1200 108 30 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 39 480 VUH-C-50 50 170,000 – 480 2500 1200 120 27 18-7/8 19 34 10-5/8 15-1/4 3 11 20-3/4 250 *Based on 60°F entering air. **For instructions on VUH units rated S-10 kW refer to Bulletin PF450 ***For instructions on VUH unites rated IS-25 kW refer to Bulletin PF451 Figure 1 Figure 2 Table 2 – Electrical Data Model Power Supply Circuit Contactor Holding Coil Volt Amperes MotorLine Line Wire Minimum (Note 3) Size No. Conduit kW Volts Phase (Note 1) Amps (Note 2) Circuits Size † Inrush Sealed Volts H.P. Phase 208 3 44 6 2 1-1/4 208 VUH-C-30 30 240 3 38 8 2 1 104 18 240 1/3 3 480 3 37 8 1 1-3/4 480 VUH-C-40 38.5 240 3 48 6 2 1-1/4 104 18 240 1/3 3 39 480 3 48 6 1 1 480 VUH-C-50 50 480 3 31 8 2 1 104 18 480 1/3 3 1. Includes Fan Motor Amps † Conduit knockout location – top of Junction Box. 2. Use 90°C Wire - Copper conductors only 3. Standard units have two contactors. Units with separate fan motor control use three contactors. IMPORTANT Failure to understand and follow these installation instructions and the “WARNING” notes therein may result in serious personal injury from electrical shock, or from the heater falling due to faulty installation. WARNING: This heater is not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in explosion or fire. For these applications see PDS CXH-EP (PF305). WARNING: Hazard of Shock. Disconnect all power before installing heater. The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury. The ceiling structure, the brackets, hangers or chains used to suspend the heater, and the anchoring provisions must be of sufficient strength to support the total weight of the heater installation (250 pounds for VUH-C-30, 40, 50 plus the weight of the supports). Prior to operating the heater verify that the fan hub setscrews are tightened and the push-on clip is secured to assure that the fan blade is securely fastened to the motor shaft. On Models connected to three-phase power, fan blade rotation must be checked. If the airflow is not downward, interchange any two of the three customer power leads. First stage of thermostat must be connected to terminals C1 and C2 to insure proper operation of overheat protective devices. INSTALLATION WARNING: Hazard of Shock. Any installation involving electric heaters must be effectively grounded in accordance with the National Electrical Code. 1. Heater should be positioned with junction box facing away from walls to provide easy access for servicing relay(s) mounted within. WARNING: Mount the heater for down discharge only. 2. It is important that 12” minimum dimension shown in Figure 1 be maintained to make it possible for a serviceman to remove the fan motor, if necessary, without moving the heater from its mounting. WARNING: The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury. The ceiling structure, the brackets, hangers or chains used to suspend the heater, and the anchoring provisions must be of sufficient strength to support the total weight of the heater installation (250 pounds for VUH-C-30, 40, 50 plus the weight of the supports). 3. The heater may be mounted to the ceiling by attaching rigid angle brackets, hangers, or chains to the four mounting holes on top of the heater case using four 5/8” bolts (by others). See Figures 1 and 2. Note: Brackets, hangers, or chains to support the heater are supplied by the customer. 4. All wiring should be done in accordance with the National Electrical Code and with local codes by a qualified pe...