3 ph 30 amp time clock?

[sid123456]

Does anyone make a 3 ph 30 amp time clock? I have a coustomer that wants to shut off his heat pumps at nite.

[kjfelec]

3 Phase contactor controlled by time clock

[iwire]

Use a normal 120 volt single pole time clock and kill the control circuit.

Many hermetic compressors have built in crankcase heaters and should have the line voltage left on 24/7.

[growler]

Does anyone make a 3 ph 30 amp time clock? I have a coustomer that wants to shut off his heat pumps at nite.


Sounds more like a job for a HVAC contractor to intall a programable controller. It's not that expensive and the control circuit belongs to the HVAC guys I wouldn't mess with it.

[iwire]

the control circuit belongs to the HVAC guys I wouldn't mess with it.

I don't give away work, I can work control circuits.:smile:

[sid123456]

Oh... Its a pool/spa heat pump. no control circuit, I called them.

[LarryFine]

Oh... Its a pool/spa heat pump. no control circuit, I called them.Something has to tell the unit when to run. I bet there's a way to insert a simple 2-wire switch loop somewhere. I can't speak for warranty issues.

Otherwise, a simple time-clock will run a 3-pole contactor.

[mdshunk]

Does anyone make a 3 ph 30 amp time clock? I have a coustomer that wants to shut off his heat pumps at nite.
Yeah. Most people call them a programmable thermostat, and do it on the control circuit. :wink:

[hillbilly1]

Be careful what power you kill, as some have crankcase heaters.

[growler]

Yeah. Most people call them a programmable thermostat, and do it on the control circuit. :wink:


Thanks Marc, I was thinking thermostat and wrote controller.

But a small White-Rodgers or Honeywell programmable thermostate is just the thing.

The only reason I don't install those anymore is because I was told that I could void the warranty. It's a good little money maker, quick and easy to install but here you are suposed to be a licensed HVAC contractor or work for one.

[mdshunk]

Thanks Marc, I was thinking thermostat and wrote controller.

But a small White-Rodgers or Honeywell programmable thermostate is just the thing.
Just remember that a heat pump thermostat is different, and since this is 3-phase, you might even need a stat with more than one stage. Just a head's up.

[iwire]

Did you guys notice this is a pool heater?

[mdshunk]

Did you guys notice this is a pool heater?
No, I didn't. In that case, Ranco makes an awesome programmable stat for that application. I can dig up a link for the OP if he wants.