Turn appliances on or off to mitigate undesired temperature consequences

SOMETIMES, YOU WOULD LIKE to be able to control devices based upon an external  or internal temperature.  This can be accomplished fairly easily through the use of an electronic temperature control device and the CM-01 UPB IO module. 

One such electronic temperature control device is the RANCO ETC-111000 unit.  This unit features an LCD display, and through the use of buttons on the front of the device, you can determine at what temperature you want an event to be triggered.  You can set the trigger temperature anywhere from –30 degrees F to +220 degrees F.  You can also determine whether to change the contacts depending on whether the sensed temperature is higher or lower than the set point.  The unit has an SPDT relay, with Normally Open (NO) and Normally Closed (NC) contacts.  Use the NO or NC contacts to provide the trigger action  you desire.

The RANCO unit has a cord coming out of it with the temperature sensor mounted in the end of it.  This allows you to mount the electronic unit in a protected environment, but put the probe in the area where you are concerned about the temperature.  RANCO makes units powered by 120 /240V AC (the ETC-111000) or units powered by 24 V.  In most situations it’s preferable to use 120V power.  The unit does not have a power cord—you are expected to provide your own power.  Go to the local department store and buy the cheapest 2 pin extension cord you can find, cut off the end connect

RANCO ETC-111000

Using UPB to Control Devices based upon Temperature

n Safety—protect appliances that are susceptible to extreme temperatures

n Convenience—let the system determine when dangerous temperatures exist

n Economic—save energy based on indoor or outdoor temperature readings

n Easily installed using:

l 1 or more RANCO ETC-111000 units

l 1 or more CM-01s

l 1 or more UPB modules to be controlled

l Intelligent controller (optional)

or, strip the wires, paying close attention to the wire connected to the wide plug (neutral), and wire it into the screw down terminals inside the unit.  Now, plug the AC plug into an existing outlet.  Mount the plastic enclosure in a location protected from the elements.  Then, run the wire and probe to a location where you need to measure the temperature, which in many cases may be outdoors.  Next, run two wires, normally 22 gauge, from the internal relay terminals to the CM-01 IO modules, using either Input #2 or #3.  Then, program the IO module to send out the appropriate link commands.

(see next page for application examples)