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Anleitung Zusammenfassung
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 combined weight of the heater installation (48 pounds for VUH-C-05, 07, 10 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 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 ELECTRIC SHOCK HAZARD. Any installation involving electric heaters must be performed by a qualified person and must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard. 1. Heater should be positioned with the junction box facing away from walls to provide easy access for servicing relay(s) mounted within. See Figure 1. Mount the heater for down discharge only. Failure to comply may result in personal injury or property damage. 2. It is important that the 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. 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 personal 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 (48 pounds for VUH-C-05, 07, 10 plus the weight of the supports). 3. The heater to be mounted to the ceiling by attaching rigid angle brackets, hangers, or chains to the four mounting holes on the 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 local codes and the National Electrical Code by a qualified person. MAINTENANCE 5. Rough-in wiring to heater. See Table 2 for line amperes, rec-8. Air diffusers for deflecting the air are optional. See Instruction ommended wire size and conduit size. Sheet PF449 for installation instructions. 6. Wire heater per wiring diagram supplied with this instruction sheet. Note: Power relay(s) are provided as standard on all heaters. 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. Failure to comply could result in personal injury or property damage. 7. Carefully inspect the completed installation. Rotate the fan blade by hand to be sure that it turns freely. Investigate any binding, rubbing or interference. ELECTRIC SHOCK HAZARD. Disconnect all power to heater before servicing or replacing heaters. Do not attempt to service heater while unit is operating as there is hazard of electric shock, injury from operating fan, and burns from hot heating elements. 1. Before activating for next heating season, vacuum or use compressed air to remove accumulated dust or lint, which otherwise may restrict proper air flow. 2. Periodically check all electrical connections and retighten to avoid electrical wiring difficulties. WIRING DIAGRAMS VOLTTransformer Color Code IndexPRI XFMRLEAD CLRS120V SEC. LEAD CLRS24V SEC. LEAD CLRS208240277480H1BLKBLKBLKBLKX1BLKBLKBLKBLKX2WHTWHTWHTWHTX1YELYELYELYELX2BLUBLUBLUBLUH2REDORGBRNBLK/REDL1L1L2C1C1X1C2TB2Customer WiringFactory WireXFMRFusingOptionalXFMRL3L2L3T4T1T3X2H1H2Thermostat(By Others) ContactorCutoutElements3o JumperHook-UpFused Switch(By Others) 3oPower60 HZWHTREDTB1YELMBLUBLK208 - 240V MotorHook-UpT1T2M277V MotorHook-UpBLKBLKL1L2L3T41o Power1o JumperHook-UpTB1To ContactorWHTREDT1T2YELMBLU480V MotorHook-UpBLKT2 Figure 3 L1L1L2C1C1C2TB2Customer WiringFactory WireL3L2L3T4T1T2T3Thermostat(By Others) ContactorCutoutElements3o JumperHook-UpFused Switch(By Others) 3oPower60 HZControlPower(By Others) WHTWHTREDREDT1T2T1TB1T2YELYELMMMBLUBLUBLK208 - 240V MotorHook-Up277V MotorHook-Up480V MotorHook-UpBLKBLKBLKL1L2L3T41o Power1o JumperHook-UpTB1To Contactor Figure 4 L1L2L3T4L1L1L2C1C1C2TB2Customer WiringFactory WireL3L2L3T4T1T2T3Thermostat(By Others) ContactorCutoutElements3o JumperHook-UpFused Switch(By Others) 3oPower60 HZ1o Power1o JumperHook-UpWHTWHTREDREDT1T2T1TB1TB1To ContactorT2YELYELMMMBLUBLUBLK208 - 240V MotorHook-Up277V MotorHook-Up480V MotorHook-UpBLKBLKBLK VOLTTransformer Color Code IndexPRI XFMRLEAD CLRS120V SEC. LEAD CLRS24V SEC. LEAD CLRS208240277480H1BLKBLKBLKBLKX1BLKBLKBLKBLKX2WHTWHTWHTWHTX1YELYELYELYELX2BLUBLUBLUBLUH2REDORGBRNBLK/REDL1L2L3T4L1L1L2C2C4C1X1C1TB2TB2Customer WiringFactory WireXFMRFusingOp...