WATER HEATER OPERATING LIMIT AND HIGH-LIMIT CONTROLS

WATER HEATER UV SCANNER AND FLAME SAFEGUARD ASSEMBLY

WATER HEATER OPERATING LIMIT AND HIGH-LIMIT CONTROLS (CONT) - TM-10-3510-209-24_342

TM-10-3510-209-24
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TM 10-3510-209-24 3-23. WATER HEATER OPERATING LIMIT AND HIGH-LIMIT CONTROLS This task covers: a. Replacement b. Adjustment INITIAL SETUP: Tools General Safety Instructions General mechanic's tool set SC 5180-90 WARNING Personnel Required High voltage is present on this equipment. Do not perform maintenance with power on. MOS 63J (1) Death or serious injury may result. Materials/Parts WARNING Operating/high limit relay Ensure water heater is cold before servicing Thread sealer compound the high-limit temperature control. The (Item 5, App C) water vessel becomes hot during operation and burns or bodily injury may result from contact with the water heater before it cools. Allow water heater to cool before servicing the high-limit temperature control. Equipment Condition TM 10-3510-209-10, Tarp assembly removed. REPLACEMENT 1. Remove cap (1), retainer (2), and cover plate (3) from high-limit control (4). 2. Tag and disconnect two wires (5). 3. Loosen conduit nut (6) on each end of conduit (7) and slide nuts toward center of conduit. 4. Open inspection plate (8) and pull wires until wires do not extend beyond end of conduit (7). 3-108

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