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How
to wire GE 15132 indoor/outdoor programmable water heater timer links on this page
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![]() Timer safe for 1 residential water heater. |
See
GE 15132 manual See large image See 15132 at Home Depot Step 1: Remove screws on face to access wiring. ![]() |
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| ✔ Set dip switch before connecting power. Manual says that incorrect dip-switch setting will damage timer. |
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Step 2: Dip switches GE 15132 timer can be used for 120V or 240V water heaters > simply change dip switches to select different voltage. Water heater voltage is printed on side of water heater. Match dip switches and water heater voltage. Figure Volts Amps Watts for your water heater Review basic 240V water heater circuit |
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Use romex connector where wire enters box |
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Step 4: Wiring
features Four basic features inside 15132 1. Dip switches 2. Screw terminals for clock 3. Screw terminals to contactors 4. Contactors/relays that handle on-off switching to water heater |
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Step 5a: Wiring diagram for 240V water heater. Both white and black wires are hot. Use 10 gauge wire for 240V water heater GE 15132 timer is housed in plastic box Ground wire is not connected to box Ground wire travels continuously from breaker box to water heater. |
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Step 5b: Wiring diagram for 120V water heater. The black wire is hot, the white wire is neutral. GE 15132 timer is housed in plastic box Ground wire is not connected to box Ground wire travels continuously from breaker box to water heater. |
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Step 6: How
to set
timer See 15132 manual ![]() ![]() |
![]() How to wire off-peak water heater | |