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Single Stage ETC Temperature Control w/ 8' Sensor, 120/240V Input
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MANUALS (2)
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Product Highlights
Description
- Unlike many electronic controls, the ETC is simple to install and set up. One finger is all you need to program it. The standard digital display and keypad allow the user to adjust the temperature settings with 1 degree resolution. Setpoint temperature, differential and mode of operation (heating or cooling) can all be selected using the keypad and display.
When not in the programming mode, the display gives a constant readout of the sensor temperature. Annunciators on the liquid crystal display also indicate when the relay is energized.
Remote Temperature Sensing
- The ETC is capable of remote temperature sensing up to 400 feet away from the control when using standard 22 gauge sensor wire.
Built-In Safety
- Every ETC model is equipped with diagnostic programs that check for hardware, software, or system problems and display different error codes to indicate where the trouble is.
The ETC also has a keyword lockout switch to prevent tampering with the control settings by unauthorized personnel. The switch, which is located inside the enclosure, can be used to disable the keypad function.
Specs
| Capillary Length: | 8' |
|---|---|
| Application: | Remote Bulb Temperature |
| Temperature Range: | -30° to 220°F |
| Differential: | 1° to 30°F |
| Voltage: | 120v 208V 240v |
| Sensor Type: | Thermistor |
| Enclosure Type: | NEMA-1 |
| Bulb Size: | 2" x 1/4" |
| Operating Temp Range: | -20° to 140°F |
| Height: | 6.52" |
| Width: | 2.7" |
| Depth: | 2.48" |
| Switch Action: | SPDT |
| Humidity Range: | 0 to 95% RH (Non Condensing) |
| Contact Ratings 120v: | 16.0 AFL 96.0 ALR |
| Contact Ratings 240v: | 8.0 AFL 48.0 ALR |
| Resistive: | 15 A 8 A |
| Horse Power: | 1 |
| Pilot Duty Rating: | 125 VA |
| Stages: | One |
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Product Reviews
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Difficult to wire
A great performer
Great product
I would buy this product again and again.
Great thermostat
Control met expectations
I would buy this product again
I would buy this product again.
I will be buying this product again for a new garage heater
Doesn't stay set after power failure.
quick shipping; good service
Product Q&A
15 QuestionsQ: Are contacts fail open, fail closed or fail last?
Asked by Dan 11 years ago
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This device can be wired NO or NC. Wired NO, if fails O. Wired NC, it fails C.
Q: How long will the unit store the temperature settings you put in when it isn't powered?
Asked by David 11 years ago
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As far as I know, indefinitely. It has always kept them for me. Benjy Edwards
Q: Will the heat strip in my havc unit still work if the controler is showing a E 2 code that wont reset?
Asked by Scott 11 years ago
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No, the unit does not function when it's showing the E2 (failure to store settings) error code.
If I recall properly, E 2 means you have to replace the controller. It has failed. You can replace it temporarily with any switch, and operate the heat strip manually.
Q: I'm building a hot box for waxing skiis, using a baseboard heater, 120V, 12.5 A. I want to keep the temp around 150F. This seems to be the right thermostat?
Asked by Kev 11 years ago
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Yes it will work very well for you.I have used them for heating and cooling. Good product.
Yes! I use it for beer fermentation, but heating chamber should work just as well.
Q: Can this item be left out exposed to weather?
Asked by Montana karp 11 years ago
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Verified Reply- Supplyhouse Staffno
Not intended for that. Water would penetrate in several places.
From the installation manual: "Mount the ETC to a wall or any flat surface using a combination of any two or more of the slotted holes located on the back of the control case. The control's components are not position sensitive,but should be mounted so that they can be easily wired and adjusted. Avoid excessive conditions of moisture, dirt, and corrosive atmosphere." If you do your best to protect it with some kind of covering, it should work, but it's not specifically designed for exterior use.
No, but there is a NEMA 4X version that can.
yes, It can be left outside. its not water proof, only because the holes in the back where the screws mount it to the wall. I have two of them outside and have never had any trouble. go with the nema 4 enclosure if you want it water tight... or tape the holes. happy heating Rob --------- Original Message --------- Subject: Can you help a fellow shopper?
Q: I am using this unit to control a water heater to hold oil at 140 degrees. Heater element is 240 volt, 15 amp (I believe). First unit lasted 2 months, second one lasted 5 minutes, clicked and display went blank. Is this too much for this to control? Any easy check to see what problem is, unit seems to be dead.
Asked by StorminNorman 14 years ago
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Sorry, my previous response is if you are using the NC contact. If you are using the NO (normally open, i.e. no power flow normally) setting then it can handle 8 amps, but still, 15amps will toast it regardless.
The listed max resistive load (in amps) at 240 is 2.9 amps, so you are likely nicely toasting the relay. I would use this to turn on or off a very high load relay, not to drive the load directly.
This control is only rated for 8.00 Amps sustained load at 240VAC. To use this control with higher loads a contactor is needed to isolate the control from the load.
The unit is rated at 8 amps, 240 volt! You must use an external power relay in the circuit if you want to use this unit to control your water heater. I've attached a copy of the Ranco manual, which shows the specifications. Bob
This controller is not rated for 15amps, you will need to get a relay that is rated for the water heater. you could control the relay with this controller though.
The relay in this device has contacts rated at following: Using the Normally Closed contacts the rating is 2.9 Amps resistive at 240 Volts Using the Normally Open rating the rating is 8 Amps resistive at 240 volts So, yes you are exceeding the contact rating of the relay in this device. Use this device to control and external relay with contacts rated at 20 Amps to control your heater and you should have no problem.
Q: can this be used to break the120v power leg on a 20amp traulsen ,(as thefactory rancos do or is this only good for triping a relay
Asked by chris 14 years ago
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The N.O. Contact is rated as follows Full Load Amps 16A Locked Rotor amps 96A Resistive Amps 15A Horsepower 1 hp The N.C. contact is rated as follows: Full Load Amps 5.8A Locked Rotor amps 34.8A Resistive Amps 5.8A Horsepower 1/4 hp If your load is within these ranges the you can use it to open the circuit, otherwise you need to use a relay interface such that the controller controls the relay and the relay controls the load.
Switching capacity is as described on the data sheet for resistive and inductive loads, as applicable. A copy of the data sheet should be available at the manufacturer's web site. This purchaser is not aware of any difference between these units and the same part number units described by the manufacturer.
I used the Ranco to monitor a freezer temp and switch the 120 on/off to keep the temperature at 34F instead of near 0. A quick an easy way to make a freezer into a really cold fridge! Cheers - Tom
The switch in this unit is rated at 16 full load amps (120v), so you will have to use an external relay if you want to control a 20 amp Traulsen. I've attached a copy of the instructions for installing the ETC-111000 which has the specs. Bob
I think it is only rated at 15 amps but I use it on a commercial refrigerator to control temps externally.
Q: Can I run 24vac on the contact side instead of 120 or 240?
Asked by Anonymous 14 years ago
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I think so. I haven't cracked it open in a few years, but I believe it's just a relay type connection internally, so 24VAC on the contacts should be fine. You still need to power it off of 120VAC or 240VAC (depending on which version you bought), if I understand the datasheet correctly.
Likely not. The device isn't just a relay, it too draws power. If it is getting its internal power, likely 12-24vdc from the ac then it is using a transformer or regulator. Either way it will not power the devices logic if you don't feed it right.
I have been using a pair of these for at least a year without difficulty to control a 24 Vac circuit . The 24 Vac I am controlling is from a Taco circulator controller. From a physical sciences point of view, I see no reason why relay contacts rated for 120/240 Vac use cannot be used at 24 Vac so long as the maximum rated current shown on the data sheet is not exceeded. It is strange that the data sheet doesn't address this. Utility at much lower voltages, such as might be found in a 20 mA current loop, could be dependent on relay contact metallurgy. You are welcome
I believe you can. To wire the unit, follow wiring diagram Figure 6 "Different Voltage to Control and Different Load" in the manual, which shows wiring for 120 volt load on 240 power, or 240 load on 120 power. Here is a link to the manual: http://s3.pexsupply.com/manuals/1283530359689/38736_PROD_FILE.pdf
I checked the relay in this unit and the relay contacts are isolated from all other components and supply voltage, so it appears you can run 24 VAC thru them. You still need to observe the contact ratings and the wire used for the 24 VAC must be rated for the units supply voltage since they will be in the same compartment.
I don't think so on this particular model. Ranco makes several models that work on 24vac: ETC-112000-000, ETC-142000-000.
No you can not. You will need models 112000 or 112100 to run 24 volt.
Yes
Q: can you set a cycle delay to keep my compressor from turning on and off too quickly
Asked by 14 years ago
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Verified Reply- PexSupply StaffThis controller does not have a set cycle delay that can be initiated on the unit. However, it does have a temperature differential setting from 1-30 degrees which will essentially allow a delay in the system turning on and off based on the temperature range programmed, as it will turn the furnace on when the temperature dips below the range set and turns the furnace off when the furnace gets above the range of temperature as well.
Q: can the probe be replaced? how hard is it to do this and what is the cost for a replacement probe?
Asked by 15 years ago
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Verified Reply- PexSupply StaffThe sensor can be replaced (part 1309007-044). See the following manual for installation instructions: http://s3.pexsupply.com/manuals/1253196590775/17484_PROD_FILE.pdf
Yes. According to the data sheet with the controller, you can get a replacement temp probe. The sheet lists the type and characteristics of the thermister used. If you wanted to replace it with a different type, (shape, housing, etc.) you could as long as it matches the original used.