Assessments - 3, GPA: 4
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“A” (In.) BTUH EH-1221 120 250 145/8 853 EH-1221 240 250 145/8 853 EH-1251 120 500 145/8 1706 EH-1251 240 500 145/8 1706 HVT-1251* 120 500 285/8 1706 HVT-2411* 120 1000 285/8 3412 NOTICE: Carefully remove heater from carton and check for shipping damage. Any damage claims should be entered *HVT models are equipped with a 55°F to 110°F adjustable thermostat. immediately with the carrier. GENERAL FIRE HAZARD. Since heaters are capable of developing high temperatures, extreme care should be taken to: A. Locate on vertical wall with length of heater positioned horizontally. HVT models must be installed with thermostat at right end; B. Avoid mounting into a wall recess since such mounting interferes with free air circulation, increases heater temperatures, and prevents proper thermostat operation on HVT models; C. Mount heaters with a minimum clearance of 24” above floor level or from adjacent wall; D. Keep all combustible materials a minimum of 4” from front and top of heater. 1. Remove screw from each end and remove perforated cover. 2. After feeding electrical wiring through opening in back of heater (See WIRING section), mount back of heater to wall with four screws (HVT models-5/16” diameter holes on 5” x 25-7/8”) (EH models 9/32” diameter holes on 5x12-1/2” centers) through back of heater. Leave one pair of end screws snug, but not tight, to avoid expansion noise due to binding. © 2010 Chromalox®, Inc. WIRING ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must be installed by a qualified person in accordance with the National Electrical Code, NFPA 70. 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. Note: Electrical wiring is to be in accordance with National Electrical Code. 1. Electrical wiring enters heater case through 7/8” opening in back of heater. 2. Grounding conductor, with green insulation, should be secured under green colored ground screw located in wiring compartment. (See Figures 1 and 2). 3. HVT Model only — The white insulated lead of the incoming power line should be attached to the L1 terminal of the terminal block. (See Figure 2) 4. Replace cover and end screws (removed in step 4, MOUNTING section). Figure1Figure 2 Heaters Ground Heaters Ground Thermostat L1 L2 OPERATION FIRE HAZARD. Keep combustible materials and such fabrics at least 4” away from front of cover or above cover. Failure to comply could result in personal injury or property damage. FIRE/EXPLOSION HAZARD. 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 personal injury or property damage. MAINTENANCE ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must be installed by a qualified person in accordance with the National Electrical Code, NFPA 70. 1. Following long periods of idleness, heater should be vacuumed before start-up to remove accumulated combustible particles which will incinerate causing smoking and consequent wall discoloration. 2. If heater is located in areas of heavy traffic, furnish suitable heater guard (wall mounted pipe rail in front of case, for example) to prevent damage to heater. 2 RENEWAL PARTS IDENTIFICATION Model Watts Front Cover Heating Elements Terminal Block Thermostat Kit (See Below)120V 240V EH-1221 250 080-016362-002 285-051049-001 285-051049-002 EH-1251 500 080-016362-002 285-051049-001 (2) 285-051049-002 (2) HVT-1251 500 080-016362-003 285-051049-006 303-047610-005 168-073659-001 HVT-2411 1000 080-016362-003 285-051049-006 (2) 303-047610-005 168-073659-001 Note: Part numbers suffixed by a number in ( ) indicates the quantity of same part number used. THERMOSTAT REPLACEMENT PROCEDURE 12 3 456 See Instruction #4 See Instruction #1 Thermostat Kit (168-073659-001) Item No. Qty. Part No. Description 1 1 300-072275-007 Thermostat 2 1 027-073304-002 Bracket — Mounting 3 2 248-048179-020 Screws 4 1 220-072276-003 Plate-Dial Thermostat 5 1 169-073294-001 Knob 6 1 056-073305-001 Clamp — Capillary Bulb Thermostat Replacement Instructions: 1. Remove cover. 2. Slide thermostat mounting bracket over existing plate. 3. Using item 3 (screws) assemble item 61 (thermostat) to item 2 (bracket). 4. Remove bolt and assemble item capillary clamp and capillary bulb and re-install bolt. Note: Do not pinch bulb in clamp, thermostat decalibration will result. 5. Assemble item 4 (plate) and item 5 (knob). 6. Re-install cover. 3 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/polic...