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GrowFAQ : Electrical &
safety

How to wire an inexpensive thermostat

Added by:
snoofer  Last edited by:
faqness  Viewed: 99 times

Rated by 4 users:
7.50/10

Contributed by: Bud63
Images
archived: 2002

This inexpensive thermostat
allows you to set the upper temperature limit of your
grow room by activating exhaust blowers, fans, etc. This
faq details how to add a power bar to the thermostat to
run several fans, blowers, etc.
Note: most grounded power bars are
able to handle up to 15amps.

I found this
thermostat control in the attic ventilation fan section
at Lowes for $10.64US. I have mine hooked up to a
squirrel cage fan to vent the grow space.

Buy a
quality power bar, preferably with several 3 prong
grounded plugs. This will allow you to run multiple fans
off the single thermostat unit.

How to wire
up the thermostat:

a.) Pop open the box by
prying the sides out slightly while pulling up on the
top cover.

b.) Solder the lines (Make sure to
let them cool).

c.) Wire nut the ends after
soldering

d.) Image of all the wires
(just to give you a feel for where the wires lead).
Note: click on image to enlarge.

Take the one
side of the plug wire and wire it into one side of the
thermostat. Attach the other side of this wire to one
side on the 3 wire outlet. Then you have just one wire
to deal with. The other wire on the 3 outlet wire goes
to the other wire from the thermostat.

Make sure
you have good connections. Tape over your wire nuts as a
final safety measure (soldered and taped, or with
maretts).

d). Pop the cover back on.

e.) That’s it! Mount the unit on
the wall securely (Make sure you install it about
halfway up the wall in your room for the most accurate
reading), dial in your temperature, plug the thermostat
into the wall, and hook up your fans/blower(s).

Note: it takes a little fine tuning to
get the temp. just right. It works with about a 5 degree
variance. If you want 80F, set it for 75.

Last modified: 13:49 - Dec 17,
2002

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faq:1373 "How to wire an inexpensive
thermostat"