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Buy residential upper and lower
thermostats Thermostats are interchangeable/ each works with your water heater 89T is discontinued/ replace with Apcom or Therm-o-disc Buy 90-150° F for residential tank: Rheem UV11698 Rheem SP11698 Camco 08163 Aprom / 110-160° Water heater thermostats at Amazon Camco thermostats at Amazon More thermostats |
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commercial upper and lower
thermostatsBuy commercial thermostat 120-180 degree F Rheem SP8293 / 170° Camco 08304 / 180° Rheem SP8295 / 170° Camco 08314 / 180° Resource Read more about 3-phase water heater Residential tank thermostat is rated 90-160° F Residential tank is NOT rated for pressure and temperature of 170-180° water. Only use 180 F thermostat on commercial water heater that is rated for high temperature Only use 180° F thermostat on commercial water heater that is rated for high temperature Marathon water heater is rated 170° F Thermostat for 3-phase non-balanced water heaters up to 480 Volt Resource How to change 3-phase water heater to single phase |
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How
to change wiring on electric water heater / foam-insulated tank Rewire foam insulated tank The foam fits very tight against wire so wires cannot be replaced. Start with 3/8" standard drill bit to drill through steel top. Then use 36" drill bit to drill through foam Drill through top of tank near wiring cavities Keep drill bit near outer edge of tank shell Buy 36" drill bits Fish bit |
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Take
photo of wires ... before
starting >Take photo of wires or draw picture showing location of each wire |
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Illustration shows typical
residential non-simultaneoius 2-element tank wiring Water heaters can be wired different ways: Below are links for specific types of wiring and other actions you can take to alter water heater wiring How to wire water heater thermostats: How to wire off-peak water heater thermostats How to wire simultaneous elements How to wire redundant water heater 3-phase water heater thermostats Convert 3-phase to single phase How to wire two water heaters How to add pilot light indicators to water heater How to add another thermostat to electric water heater How to replace thermostats How to replace elements How to test elements How to select right wire and breaker |
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2 ordinary residential
non-simultaneous water
heaters on one 30 amp wire and breaker Wiring illustration Applies to electric water heaters only Important: install upper thermostat in place of Lower thermostat This will give ECO protection to lower thermostat You want to heat tank #1 first... and then tank #2 Or you can wire each one separately using 2 separate circuit breakers and 10 gauge wires Buy 36" drill bits Resources: How to wire two water heater How to install water heater thermostats Add another thermostat to water heater How electric water heaters work |
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Tools DEWALT Black and Decker Stanley SKIL Makita Porter-Cable Bosch Irwin Hand tools Klein hand tools Fluke electrical testing Dremel hobby tools Campbell Hausfeld air powered Tekton automotive Powerbuilt automotive Saws and saw blades |
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Resource: Compare box timers DPDT timers Intermatic Control water heater w/ Z-wave |
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Resource: Intermatic control centers: and parts Digital control centers and parts Tork control centers and parts Subpanels All control centers and parts Enclosures |
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Resource: Programmable timers Countdown timers Off delay timers On delay timers Timer modules Din rail Twin & one-shot Woods Intermatic Tork |
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