HERMS Controllers

Electric HERMS (Heat Exchange Recirculating Mash System) Controllers

 

Our HERMS controllers are designed to take you the next step beyond a controlled mash without breaking the bank. With an electric HERMS controller you control your mash, then use the water in the HERMS tank as your sparge water and then finally run your boil all with one controller. And the best part of our HERMS controller is the ability to expand without reinvesting in your original hardware! We accomplish this with expansion modules that can be daisy chained to your original control module.

 

Want to expand from 6 to 12 gallon boil? No problem, just add an additional element to your boil pot, expand your electrical panel to 50 Amps, add an additional outlet then plug in one of our expansion modules with the supplied cable. Set the rotary switch on your expansion module to boil and it’s element will cycle on and off in time with the first element in your brew pot.

 

HERMS tank isn’t heating fast enough? Again, no problem, just add an additional element to your HERMS tank, add an additional outlet and then daisy chain another one of our expansion modules into the first one with the supplied cable. Set the rotary switch on this expansion module to mash and it’s element will cycle on and off in time with the first element in your HERMS tank. And because only two elements are ever on at one time there’s no need to expand your electrical panel beyond 50 Amps! You can daisy chain up to 4 expansion modules.

 

 

 

Our HERMS controllers feature:

A compact all aluminum housing with 4 mounting holes and large heat sink to dissipate excess heat. We never, ever use unsafe plastic housings for our brewery controller products.
A twist right to turn on / press to turn off main power button that also serves as an emergency off switch.
Boil is managed with our in-house designed PWM controller – the graduated knob on the top panel.
Temperature is managed by an off-the-shelf PID controller. We could design our own controller but sometimes it’s just smarter to let the experts manufacture and deliver what they do best!
Ships complete with a in-house designed PT-100 temperature sensor. Our temperature sensors are built into their own water proof thermowells with 1/2″ MPT type threads and nylon lock nuts. We include a 6 foot flexible sensor cable that can be easily disconnected and reconnected at either end.
Simple to use BOIL / MASH switch changes modes during your brew cycle.
Features a 10 Gauge SJOOW 12 foot power cord with a 4 prong dryer style power plug.
Also feature two 30 Amp L6-30r twist lock receptacles designed for a L6-30p twist lock plugs used by most 240V home brew mash tuns and RIMS tubes. One for your HERMS tank and one for your boil pot.
Two 120V pump control circuits with separate on/off switches and pump outlets. The pumps are switched separately. You can use other pumps but we recommend MARCH pumps for our controllers.
A programmable alarm with it’s own on/off switch. The alarm is about as loud as a smoke alarm alerter and it makes about the same sound.
All of our controllers are tested with GFCI and are GFCI compatible.
The safety ground wire that runs from the outlet all the way to the plug is also bonded to the aluminum housing for safety.
All of our controllers are 100% manufactured in the USA with a mix of US, Chinese and Canadian components.

Specifications and Installation Recommendations:

Controller
Our standard 220/240V HERMS tube controllers are built with 4 prong dryer type plugs. Like all of our other controllers, these are 100% tested behind GFCI breakers and to be 100% GFCI compliant our 220/240V controllers must be 4  wire. We highly recommend running a dedicated GFCI protected 30 Amp 4 wire circuit for your brew area. NEC Code in most areas will require you to run 4 wires to a sub panel and one of the best choices on the market is a SPA panel. This controller will easily handle up to a 7000 watt heater after factoring in power for a circulation pump, but 4500 to 5500 watt water heater elements are more common with homebrewers.

Because only one element can be switched on at one time, this controller will draw no more current than the highest rated element in the system, and a 5500 watt water heater element will draw 23 Amps

Controller and One Expansion Module
Assuming a 5500 Watt element is used in both controllers, the controller and expansion module together will draw up to 11,000 watts or 46 Amps. You will need to upgrade your sub-panel to 50 Amps.
Controller and Two Expansion Modules Assuming a 5500 Watt element is used in all controllers, one expansion module is set to mash and the other is set to boil then the entire system will draw up to 11,000 watts or 46 Amps. You will need to upgrade your sub-panel to 50 Amps.

If both expansion modules are set to the same function (like boil) then you will need to upgrade your sub-panel to 75 Amps. This is because three 5500 Watt elements will be on at the same time and the set of three will draw 16,500 watts or 69 Amps.

Controller and Three Expansion Modules
Assuming 5500 Watt elements are used by all controllers, one expansion module is set to mash and the other two are set to boil then the entire system will draw up to 16,500watts or 69 Amps. You will need to upgrade your sub-panel to 75 Amps.

If all three expansion modules are set to the same function (like boil) then you will need to upgrade your sub-panel to 100 Amps. This is because four 5500 Watt elements will be on at the same time and the set of four will draw 22,000 watts or 92 Amps.

Controller and Four Expansion Modules
Assuming 5500 Watt elements are used by all controllers, two expansion modules are set to mash and the other two are set to boil then the entire system will draw up to 16,500watts or 69 Amps. You will need to upgrade your sub-panel to 75 Amps.

If three expansion modules are set to the same function (like boil) then you will need to upgrade your sub-panel to 100 Amps. This is because four 5500 Watt elements will be on at the same time and the set of four will draw 22,000 watts or 92 Amps.

If all four expansion modules are set to the same function (like boil) then you will need to upgrade your sub-panel to 125 Amps. This is because five 5500 Watt elements will be on at the same time and the set of five will draw 27,500 watts or 115 Amps.