True GDM-26 and Love/Ranco Controller - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > True GDM-26 and Love/Ranco Controller

Reply
 
Thread Tools
Old 02-28-2013, 02:51 AM   #1
12milebrewing
Recipes 
 
Feb 2013
Posts: 7


I've happened upon a True GDM-26 for use as my fermentation chamber. I've seen references to using an STC-1000/Love/Ranco with these units. What is the recommended approach in wiring these? Bypass the internal thermostat, or can it be plugged in to a Ranco without short cycle issues?

My goal is simplicity (Ranco), but if the best approach is the more complex (Love) one that's fine. I have so much invested in this new system the extra time/cost is irrelevant at this point.

Thanks in advance!

 
Reply With Quote
Old 02-28-2013, 03:09 AM   #2
day_trippr
Recipes 
 
May 2011
Stow, MA
Posts: 17,173
Liked 2929 Times on 2187 Posts


If you have that much invested, it might be prudent to go with the Love controller, as the Ranco doesn't have an anti-short-cycle function. The wiring complexity for any of the three makes you mentioned is essentially identical...

Cheers!

 
Reply With Quote
Old 02-28-2013, 07:56 PM   #3
12milebrewing
Recipes 
 
Feb 2013
Posts: 7

Would you wire it in after the stock thermostat as well?

 
Reply With Quote
Old 02-28-2013, 09:29 PM   #4
raouliii
HBT_SUPPORTER.png
 
raouliii's Avatar
Recipes 
 
Aug 2011
Ponchatoula, LA
Posts: 1,019
Liked 118 Times on 102 Posts


I installed my STC-1000 in the bottom louvers on my TRUE GDM-10 Fermentation Chamber. The existing thermostat is bypassed. Existing wires were used between the lower and upper enclosures. I ran the probe wire through the existing wiring hole in the floor of the unit. The Heat 1/2 duplex receptacle (and an always Hot other 1/2, not on schematic) were installed in the original thermostat cut-out, in case I needed to control a smaller heater or use some other AC device inside the chamber.

IMO, bypassing the thermostat is a better option in that it allows the evaporator fan to run constantly, which promotes defrosting and air circulation.







Original Schematic





Modified Schematic


The heat strip turned out to be oversized and I haven't actually needed to use it all winter.
__________________
On Tap:
LeftOvers Amber
Rearranger IPA - Chinook, Simcoe, Cascade
Ponchy Pale Ale - Millennium and Willamette
NippleRub Ultra (Light Lager w/Mexican Lager yeast)

In the Chamber:
Nothing

Next Up:
A Light Lager

 
Reply With Quote
Old 02-28-2013, 10:06 PM   #5
12milebrewing
Recipes 
 
Feb 2013
Posts: 7

Thanks much for the schematics. I like the idea of the fan running constantly for recirculation.

 
Reply With Quote
Old 02-28-2013, 10:16 PM   #6
beaksnbeer
HBT_LIFETIMESUPPORTER.png
 
beaksnbeer's Avatar
Recipes 
 
May 2011
New Port Richey, Florida
Posts: 2,844
Liked 505 Times on 334 Posts


I use the heat side to run my fan "AFTER" the cooling cycle is done it runs for about 8-10 minutes the cooling runs for 5-10 minutes every hour or so.
__________________
Quote:
Home of the 12 Tap keezer

 
Reply With Quote
Old 03-01-2013, 01:14 PM   #7
raouliii
HBT_SUPPORTER.png
 
raouliii's Avatar
Recipes 
 
Aug 2011
Ponchatoula, LA
Posts: 1,019
Liked 118 Times on 102 Posts


Quote:
Originally Posted by beaksnbeer View Post
I use the heat side to run my fan "AFTER" the cooling cycle is done it runs for about 8-10 minutes the cooling runs for 5-10 minutes every hour or so.
Do you run the evaporator fan during the cooling cycle also?
__________________
On Tap:
LeftOvers Amber
Rearranger IPA - Chinook, Simcoe, Cascade
Ponchy Pale Ale - Millennium and Willamette
NippleRub Ultra (Light Lager w/Mexican Lager yeast)

In the Chamber:
Nothing

Next Up:
A Light Lager

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Love temp probe with a Ranco controller? lpdb185 Equipment/Sanitation 1 08-01-2012 08:23 PM
tss2 love controller wiring a freezer with a computer controller simie Electric Brewing 0 06-10-2012 11:53 PM
PID, Love, Ranco arggghhhh... pdavidc Equipment/Sanitation 8 05-30-2011 02:14 PM
Ranco vs. Love vs. Auber PID beeguy Electric Brewing 8 01-24-2011 06:53 AM
Johnson, Love, or Ranco pcrawford Equipment/Sanitation 6 06-04-2008 02:53 AM


Forum Jump