Materials
Electrical Boxes and cover plates
2 or 3 – Home Electrical Wall Switches
2 - 3-Way Switches
1 – Home GFI Electrical Outlet
12-3 Gauge SJ (Soft Jacket) Wire for electrical connections
Panel constructed from 2”x4” wood
Controller – Omega, model: CN8592-DC1-DC2, $150, 800
848-4286, www.omega.com
Solid State Relay (25-amp capacity) – Omega, model: SSR240DC25,
$29
Finned Heat Sink – Omega, model: FHS-2, $17
Fast Blow Fuse – Optional read below, Omega, model: KAX-25,
$10
Fuse Box – Optional read below, Omega, model: FB-1, $7
Electrical Cord and 3 prong Plug for the end. Rated for
120 volts.
Miscellaneous hardware for electrical connections
Procedures
Construct a frame from 2x4’s to support a control panel
and attach as shown above.
Attach the boxes for the switches, controller and outlet to the
panel.
Attach the solid state relay on top of the heat sink and attach
to the backside of the panel frame.
My system utilizes a home 15-amp breaker circuit. But the
representatives at Omega Electronics recommend the use of a Fast
Blow Fuse and Box to protect the controller system. I’ve
used my brewery several times without problems. If you
are concerned about the reliability of your home breakers/fuses,
install the fast blow fuse and box.
Wire the switches, controller, outlet, SS relay, thermocouple,
element, pump(s) and plug-in cord in accordance with the electrical
plan. See section 11, Electrical Plan.
Attach cover plates.
How the Recirculating Infusion Mash System works
When switched on, the controller display will flash system
configuration information for a few seconds and will then show
the current temperature. It will be in output mode and will power the
heating element when the temperature falls below the setpoint. The
controller determines current temperature through the thermocouple
and then switches on the solid state relay, which sends power
to the element keeping the mash within 1⁄2 degree of the
setpoint. Pump 1 must be on whenever the heating element
is on. As a safety feature to avoid burning the mash,
the system is wired so that the heater will be powered only
when both the controller output 1 indicator and pump 1 is on.
A complete description of the proper use of the RIMS is in
the last section, “Brewing, Step by step guide”.
