Page 2 - Maximum Temperatures —; Do not energize heater in air with a; GENERAL; Specifications — Table B; Figure 3; INSTALLATION; Figure 5
ELECTRIC SHOCK HAZARD. Disconnect all powerbefore installing or servicing heater. Failure to do socould result in personal injury or property damage.Heater must be installed by a qualified person in accor-dance with the National Electrical Code, NFPA 70. The system designer is responsible for the sa...
Page 3 - Figure 6; Users should install adequate back-up controls and safety; WIRING; Control; Figure 8
6. In high ambient temperature operations, least corrosive actionand least oxidation to the terminals will occur if the heaters aremounted with the terminals in the coolest possible ambient,usually on the bottom or side of the duct. A. Minimum duct size is “A” or “L” dimension +3/8” and “B” dimensio...
Page 4 - OPERATION; Check for loose terminal connections. Tighten as necessary.; MAINTENANCE
ADH-005, ADHT-005 ADH-010, ADHT-010 ADH-015, ADHT-015 ADH-020, ADHT-020 ADH-025, ADHT-025 ADH-030, ADHT-030 ADH-035, ADHT-035 Do not operate heater at voltages in excess of that stamped on the heater since excess voltage will shorten heater life. OPERATION ELECTRIC SHOCK HAZARD. Disconnect all power...
Page 5 - WIRING DIAGRAMS
WIRING DIAGRAMS ADH-040, ADHT-040 ADH-045, ADHT-045 2 Circuits per Heater, Circuit A, B, 12 Elements per Circuit, 24 Elements per Heater AL1, BL1 AL2, BL2 AL3, BL3 Typical Circuit AL1 AL2 AL3 BL1 BL2 BL3 2 Circuits per Heater, Circuit A, 15 Elements, Circuit B, 12 Elements, 27 Elements per Heater Ci...
Page 7 - RENEWAL PARTS IDENTIFICATION — TYPE ADH; Other Parts Common to all Heaters
RENEWAL PARTS IDENTIFICATION — TYPE ADH 7 Other Parts Common to all Heaters ❶ ❷ ❸ * ❹ ❺ ❻ Individual Replacement Flange Element Element Support Rod Terminal Block Model Element Retaining Clip Spacer Plate Spacers Assembly ADH-005 393-055440-007 (3) 121-055367-001 272-511327-001 (6) 271-055370-001 24...
Page 8 - RENEWAL PARTS IDENTIFICATION — TYPE ADHT
RENEWAL PARTS IDENTIFICATION — TYPE ADHT Other Parts Common to all Heaters ❶ ❷ ❸ ❹ * ❺ ❻ ❼ ❽ Individual Replacement Thermocouples Flange Element Element Support Rod Terminal Block Thermocouple Model Element Retaining Clip Spacer Plate Spacers Assembly Terminal Block ADHT-005 393-055441-007 (3) 309-1...