AirCon condensing pump connection.

[pr1970ster]

Hey all

I have an aspen mini pump for an AC unit to remove condensing water (travels up into the ceiling). Anyone have a clue how i should wire this into a daikin ac unit.

I think i need to

pump brown to terminal 1 AC
pump blue to terminal 2 AC
disconnect terminal 3 AC grey - connect to pump black with terminal block.
2nd pump black - connect to terminal 3 AC


i've also posted this in the heating/plumbing forum.
Thanks in advance.

 

[ericmark]

Sorry, I still use a smart socket with a timer and manually empty the container every time the AC stops.

In the past ACs I have worked on, did have an auto stop if the reservoir was not emptied by the pump, but the pump its self was on a float control.

I can't work out how to wire with what is shown.

 

[pr1970ster]

That’s actually something I’ve already got well a pump on a smart plug and it comes on every hour or so when ac is on . But I wanted something more for when the water is filling up and then the pump comes on automatically.

 

[SUNRAY]

Permanent L & N on the brown and blue will give the auto empty function you require. The safety blacks are there to stop the AC if it's overfilling. You can ignore them If you're confident it pump is doing its job or you could use them for an alarm sounder, Ideally they should be used to stop the AC by interrupting the 'run' signal. I would make a guess your

pump brown to terminal 1 AC
pump blue to terminal 2 AC
disconnect terminal 3 AC grey - connect to pump black with terminal block.
2nd pump black - connect to terminal 3 AC

is possible.

I'd:
1) verify the cable with the grey is the only mains/power connexion
2) disconnect the grey and confirm the AC won't start

If that's all okay then fill y' boots

 

[pr1970ster]

Permanent L & N on the brown and blue will give the auto empty function you require. The safety blacks are there to stop the AC if it's overfilling. You can ignore them If you're confident it pump is doing its job or you could use them for an alarm sounder, Ideally they should be used to stop the AC by interrupting the 'run' signal. I would make a guess your

is possible.

I'd:
1) verify the cable with the grey is the only mains/power connexion
2) disconnect the grey and confirm the AC won't start

If that's all okay then fill y' boots

Thanks , grey cable is just a low power communication to the exterior split. seems to give the pump info on when it should be on or off.

 

[SUNRAY]

Slightly different product but does this help?

Excuse the wiring colours and horrible assembly techniques which are mishmash of USA and others products and standards.
Your product suggests the same method of shutting the unit down but indicates triggering it directly by the float switch BUT you would have to check the power rating of the indoor unit to ensure it's below the 5A rating of your float switch

If you do require a relay you wouldn't have to use a transformer and 24V relay as your float switch is rated for 240V

Ensure you don't interrupt the permanent mains to the outdoor unit as that will very likely damage the float switch.

Other web sites seem to suggest interrupting the grey wire as in your OP.