Danfoss Compressor Wiring Diagram

[Vernon]

Ihave a Lec 50mm (12V fridge). I received it with all the wiring at the back of the unit disconnected, meaning that the wires that connect to the danfoss compressor are not connected and I have no idea what order they should go in? Anyone got a Lec fridge connected to a danfoss compressor who could put me right?

I've looked at the wiring diagrams from Danfoss, but they don't make sense to me and don't take into account the fridge model. Lec no longer stock the unit in question and have no schematics of how it should hook up. Itfi get it wrong i may blow the fridge of the electrics (well short them, anyway!)

The lec has two main leads coming from the back of the unit. A white lead with two wires Brown (+) and Blue (-) for power - I think. Then there is a black lead that has four wires that should connect to the compressor: Brown (+), Blue (-), Grey (?) and black (?)

Thanks Tony. I can't understand what colour wires would go on what terminals...any ideas? also, if I have a separate power lead for the battery connection, I think that takes care of first + / - But the compressor terminal?

Thanks mate. I can't understand what colour wires would go on what terminals...any ideas? also, if I have a separate power lead for the battery connection, I think that takes care of first + / - But the compressor terminal?

chris, that is so helpful, thank you. One last dumb question: If all those wires connect to the compressor, what connects to the power supply from the wall / 12v circuit? as i understand it, both leads are connected to the compressor, which means i need another lead to connect up the power?

on the compressor, but as you have it, the lead from the fridge connects to these points (the ones as the upper section of the sequence on the compressor. The only terminals left on your config are F and P - I don't think the mains connects to those?

Hello,

May I know what version of the ITC-1000 did you purchase? Is it 220V/ 110V/ 12V? Is the voltage of the power supply and fridge the same as it?

If you connect the fridge directly to the mains, can it cool quickly to 25F?

This can help us to rule out whether it is the way the fridge works that is causing the problem.

ITC-1000 is an on/off controller, it does not control the running speed of the compressor, it only affects the opening time of the compressor.

Not sure if the compressor will turn on at a slower speed when powered on?

I just purchased an ITC-1000F in 12v to act as a digital thermostat. I now have this setup to open/close the 12vdc circuit for my Danfoss BD50F compressor. This is a variable speed compressor and I have the cooling switch port set on the negative side, so that I keep a health 12v+ coming from the main breaker panel.

When I attach the Inkbird, the sensed temp and cut in temp seem to work fine. The compressor is running with over 12v at the compressor main connections. However, the evaporator plate is not frosting over and the refrigerator compartment is not cooling.

When I remove the Inkbird from the circuit and plug the 12vdc leads directly onto the compressor (bypassing the Danfoss thermistor with a shunt as described by Danfoss) the unit cools down quickly to below freezing.

The ITC-1000F is being powered by 12v, the display and the features all seem to work according to the provided instructions. The compressor is at 12.6v when running with the ITC-1000F attached. The Danfoss literature states that a minimum of 10.4v is required and a maximum of 17v. So with the multi-meter everything is running within specification.

Any other recommendations? Could I have a bad Inkbird unit? I have noticed that the results are repeatable, in that the unit does not cool when the ITC-1000F is attached and it does cool with the leads directly attached to the compressor terminals.

If the voltage problem is ruled out, the compressor will not work when connected to the ITC-1000F, but the compressor will turn on automatically when connected directly to the power supply, this could be caused by a wiring error/ setup error/ product problem.

Just a troubleshooting step, just in case, please refer to this wiring diagram and check if the wiring is correct or the wires are loose/broken.

If correct, please check if the cooling indicator light on the ITC-1000F is on? The cooling indicator and cooling output are switched on and off synchronously, if the cooling indicator is not on, this may be a setup problem.

The ITC-1000F is set up on the following principle

When the temperature reaches/ higher than TS+DS, it will turn on the cooler, turn off at TS.

Please make sure the current reading is above TS+DS.

In addition, please make sure that the compressor current is within 10A. The ITC-1000F has a power limit, if the power of the cooling unit exceeds 10A it may damage the ITC-1000F and cause output problems.

Frigoboat Installation and Instruction Manual

Standard manual explaining how to install a Frigoboat refrigeration system and giving basic instruction with troubleshooting pointers. Updated periodically as new information is received from the field by users and owners.

Bending Instructions for Frigoboat Evaporators

How to bend a flat aluminum evaporator plate into a "U" or "L" shape to custom fit into an ice box. Also available in Section 6 of the Frigoboat Installation and Instruction Manual above.

Smart Speed Control - General Operating Instructions obsolete

The original Smart Speed Control (SSC) installation and operating instructions. This excellent product is no longer available. The replacement product, Merlin II uses the same performance algorithms, but does not have the mounted display. See wiring diagram below.

3a8082e126