Mitsubishi PAC-US444CN-1 Dip switch configuration
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Sorry I haven’t done one of these yet. Mitsubishi Rep says you lose some diagnostic capabilities and some of the finer “variable capacity” features.0
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Yes. SW1 is a 4 position DIP switch block, numbered 1..4 on the face of it. Remove power, flip those two switches on, & reapply power. (The bigger 8 position switch block is marked SW2, you can just make it out under the black X on the top of the picture.)plandis said:Do I turn these 2 on?
FWIW, you may be able to find a service guide to that part at mylinkdrive.com, which may give you more information about what each setting does & how they interact.
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So when you mean switch those two switches, the ones labeled 1 and 2 on the SW1 block?0
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Yes. Push the little sliders marked 1 & 2 towards ON. You should feel a slight (or possibly more pronounced) click when they move—but not all have this feature! If you don't feel a click, flip them back to off & then back on again. I have, occasionally, had these style fail to make the electrical connection. A double flip generally fixed it.plandis said:So when you mean switch those two switches, the ones labeled 1 and 2 on the SW1 block?
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Where is that circuit board that you have the picture of? In the remote, receiver, indoor unit?plandis said:I want to change the dip switch of the Mitsubishi PAC-US444CN-1 to shut off right away when the temperature is met. It’s states SW1-1 should be on and SW1-2 should be on. I’m not understanding what that should be. Attached are some pictures with the instructions.
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The PAC-US444CN-1 is a small (c. 3" x 3" x 1/2") accessory that mounts at a convenient location on or near the indoor unit, to convert the mini split to thermostat control. It plugs in to the mini split head & wires to a (field supplied) 24 volt transformer & a standard thermostat (e.g Nest). You lose the variable capacity of the mini split, although with a multi-stage stat you don't have to run in high all the time.0
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Ah. It looks like mine is a different model: MIFH2. My remote is an MHK2. My problem is that I set the thermostat to 61 and it heats to 64. I am not sure why, but suspect it's because there is some kind of shut down delay when the room reaches temperature. The solution is to set SW1-1 and SW1-2 to ON, but it looks like that may not pertain to my equipment.ratio said:The PAC-US444CN-1 is a small (c. 3" x 3" x 1/2") accessory that mounts at a convenient location on or near the indoor unit, to convert the mini split to thermostat control. It plugs in to the mini split head & wires to a (field supplied) 24 volt transformer & a standard thermostat (e.g Nest). You lose the variable capacity of the mini split, although with a multi-stage stat you don't have to run in high all the time.
Rick
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I'm not familiar with that model, but most|all mini splits seem to run the fan at a low-low setting once they're satisfied, that can sometimes lead to over heating/cooling: see this thread for a success story.
You should be able to find all the documents you need at https://mylinkdrive.com/USA, Mitsubishi's online document center. I wish all mfgrs would do something similar!
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