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Electric Brewery Wiring Diagrams

These wiring diagrams are provided as a free resource to the homebrewing community. Only use one of these diagrams as the basis of your project if you fully understand the electrical wiring involved.
For safety, remember:
1. Build your controller in a housing designed for electrical wiring.
2. 120VAC will kill you just as fast and just as dead as 240VAC will kill you.
3. All exposed metal surfaces must be securely bonded (connected) to safety ground, including your brew stand frame and brew pot.
4. Never work on the internals of your controller or your heating elements without unplugging from the wall first.
5. If in doubt, call or hire a qualified electrician.
6. If nothing works & nothing lights, don't assume that power is off!!!!
7. GFCI breakers are only there to protect you from faults & accidents, not to protect you from poor design or poor wiring.
8. There are numerous ways to unintentionally wire around the protection that a GFCI breaker provides.
9. Don't believe the experts on the internet - 95% of them are just quoting someone else and they really don't have a clue.

Basic 120V PID SSR Temperature Controller

120V Water Heater Element Wiring

Basic 240V PID SSR Temperature Controller Without Disconnect

Basic 240V PID SSR Temperature Controller With Disconnect  

 

Basic 120V PID SSR Temperature Controller

This is the absolute minimum you need to temperature control a 120V water heater element for brewing. If you are going to use this circuit to control a RIMS tube, the thermocouple will be placed at the inlet or outlet of your RIMS tube. This circuit can be plugged directly into your kitchen AC outlet or any other AC outlet in your house or garage so long as the circuit has enough capacity to support the heating element you plan to use. With the correct 120V heater, this same basic controller circuit can be used to control the temperature in small greenhouse or a large aquarium.

You can find parts from our on-line store to support this project.

 Basic 120V PID SSR temperature Controller

120V Water Heater Element Wiring

Some people wire 120V water heater elements up as "heat sticks" then they will use their heat stick to adjust their mash temperature and to help bring heir wurt up to boil. A much better and safer application is to mount the element through the side of your brew pot where there is no danger of knocking the element out of your brew pot. Regardless of how you wire your element, find a way to securely attach the green safety ground wire from the cord to the outer shell of the heating element.

You can find parts from our on-line store to support this project.

120V Water Heater Element Wiring

Basic 240V PID SSR Temperature Controller Without Disconnect

This is the absolute minimum you need to temperature control a 240V water heater element for brewing. If you are going to use this circuit to control a RIMS tube, the thermocouple will be placed at the inlet or outlet of your RIMS tube. Power is supplied from a new or existing 30 Amp dryer outlet. An older existing dryer will be 3 wire but to meet code any new install will be 4 wire even though this controller only uses the two hot (Black & Red) wires and safety ground (Green) wire. For safety the green safety ground wire must be wired to any exposed metal surfaces including your project box you choose (if metal) and the outside of your metal brew pot or mash tun.

Because this controller does not have a internal disconnect (on/off switch), for safety it must be unplugged when not in use.

You can find parts from our on-line store to support this project.

Basic 240V PID SSR Temperature Controller

Basic 240V PID SSR Temperature Controller With Disconnect 

This is the absolute minimum you need to temperature control a 240V water heater element for brewing with a safety disconnect. If you are going to use this circuit to control a RIMS tube, the thermocouple will be placed at the inlet or outlet of your RIMS tube. Power is supplied from a new or existing 30 Amp dryer outlet. An older existing dryer will be 3 wire but to meet code any new install will be 4 wire even though this controller only uses the two hot (Black & Red) wires and safety ground (Green) wire. For safety the green safety ground wire must be wired to any exposed metal surfaces including your project box you choose (if metal) and the outside of your metal brew pot or mash tun.

The disconnect must be 2 pole (both sides turn on & off at the same time) and must be rated for at least 30 Amps at 240VAC, even if you plan to use a lower wattage heating element.

You can find parts from our on-line store to support this project.

Basic 240V PID SSR Temperature Controller with Disconnect

 

 

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