Freezer nameplate says 3 phase but service is single phase

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Stevenfyeager

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United States, Indiana
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electrical contractor
Freezer nameplate says 3 phase, 208 - 230/115 volts, unit ampacity 15.1 - 17.5 amps. The service in the building has 120/240 single phase. Does the nameplate mean I can use single phase even though it says 3 phase ? Sorry if I asked a stupid question.
 
Stevenfyeager said:
Freezer nameplate says 3 phase, 208 - 230/115 volts, unit ampacity 15.1 - 17.5 amps. The service in the building has 120/240 single phase. Does the nameplate mean I can use single phase even though it says 3 phase ? Sorry if I asked a stupid question.
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If it says 3 phase, it has to be 3 phase.

However, the curious wording of "208-230/115 Volts suggests it is maybe not 3 phase. perhaps a picture of the nameplate is in order.
 
petersonra said:
If it says 3 phase, it has to be 3 phase.

However, the curious wording of "208-230/115 Volts suggests it is maybe not 3 phase. perhaps a picture of the nameplate is in order.
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I will send a photo, but its one the owner took and not very clear.https://mail.google.com/mail/u/0?ui=2&ik=4ee6f13c8d&attid=0.1&permmsgid=msg-f:1724510665682564574&th=17eeb1504761b5de&view=att&disp=safe
 
My conclusion: It's dual-voltage, as indicated by the amperages, but I'm not aware of 120v 3ph anywhere.
 
Stevenfyeager said:
Tech says he suggests replacing the condensing units with single phase as opposed to a converter because its 12 years old. How involved is installing a converter?
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Is this a walk-in?

Good advice to replace the 3 phase condensing (and probably the evaporator) unit with a single phase. If it's 12 years old, it's pretty much circling the drain anyway and it uses an obsolete refrigerant. That's why the tech suggested it. I've never seen a VFD or rotary "converter" used for this anyway, especially when you have multiple loads like door heaters, evaporator fans, lights, defrost heaters, solenoid valves, etc. involved.

-Hal
 
zbang said:
However you slice it, making this run on single-phase is going to be somewhere between expensive and impossible.
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Can't tell from the information given.

I asked if this was a walk-in.

If so, is there a separate evaporator in the box piped to the compressor/condenser outside of it?

Or is this use one of those self contained refrigeration units that sits on the top?


Many times, buying old used equipment isn't worth the trouble.


-Hal
 
Could 208-230/110 3 phase mean that it's OK to connect to either a 208Y/120V system, or a high leg 240V delta? I.e. all the 3 phase motors will run on 208V or 240V, and one of the line terminals is marked for the high leg, if there is one, with no 120V components powered from that leg?

Cheers, Wayne
 
hbiss said:
Can't tell from the information given.

I asked if this was a walk-in.

If so, is there a separate evaporator in the box piped to the compressor/condenser outside of it?

Or is this use one of those self contained refrigeration units that sits on the top?


Many times, buying old used equipment isn't worth the trouble.


-Hal
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yes, a walk in
 
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