rebeccmeister (![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
rebeccmeister) wrote2016-03-08 05:31 pm
rebeccmeister) wrote2016-03-08 05:31 pm
Things, sometimes [work equipment]
The lab here has two nice-looking Percival incubators. Unfortunately, at some point early in their usage, they were filled too full with crickets, and this started to cause a buildup of material on the unit cooler fan motors. The buildup, in turn, wore out the fans to the point where they started making horrible fan-dying noises. Before I arrived, at least some of the fans were replaced, but of course I don't know which out of the four fans (two fans per unit). About a week ago, I turned on the second incubator, and left it running without any crickets in it whatsoever. Over the weekend, one of its fans started to make the terrible dying noises.
It sounds like we're probably out of the warranty period for the units, and in any case, the person I tried to contact at the original vendor hasn't replied to my query, so I'm strongly inclined to figure out how to fix/replace the damn things myself.
But ugh, I don't know a whole lot about fan motor specs, so it's taking some head-scratching to try and figure out what to order/stockpile as a replacement. One of the fans helpfully declares, on its side, "120 VAC 60 Hz S1 0.45 A" and it has a 1/8" shaft diameter with a 1.5" shaft. From this I gather that it's for a 120-voltage system (US standard), operates at 60 Hertz (i.e. 3600 rpm) with a current of 0.45 amps (specs from the wiring diagram indicate the cooling unit has a total current of 1.3 amps).
So, does that mean that this will work? Or will it draw too much current? The last time I thought about most of this was high school physics, argdarnit.
Another diagram describes the whole cooler unit as "RCO-001 UNIT COOLER BOHN #TA-17SF; w/TWO(2) 115 VAC/1-PHASE/60 Hz, 1.6 TOTAL FLA, 210 TOTAL CFM FANS; 1/2 SAE FLARE NUT INLET, 3/8 ODF SOLDER SUCTION-LINE CONNECTION, 1/2 ODF SOLDER DRAIN-LINE CONNECTION"
More information needed?
It sounds like we're probably out of the warranty period for the units, and in any case, the person I tried to contact at the original vendor hasn't replied to my query, so I'm strongly inclined to figure out how to fix/replace the damn things myself.
But ugh, I don't know a whole lot about fan motor specs, so it's taking some head-scratching to try and figure out what to order/stockpile as a replacement. One of the fans helpfully declares, on its side, "120 VAC 60 Hz S1 0.45 A" and it has a 1/8" shaft diameter with a 1.5" shaft. From this I gather that it's for a 120-voltage system (US standard), operates at 60 Hertz (i.e. 3600 rpm) with a current of 0.45 amps (specs from the wiring diagram indicate the cooling unit has a total current of 1.3 amps).
So, does that mean that this will work? Or will it draw too much current? The last time I thought about most of this was high school physics, argdarnit.
Another diagram describes the whole cooler unit as "RCO-001 UNIT COOLER BOHN #TA-17SF; w/TWO(2) 115 VAC/1-PHASE/60 Hz, 1.6 TOTAL FLA, 210 TOTAL CFM FANS; 1/2 SAE FLARE NUT INLET, 3/8 ODF SOLDER SUCTION-LINE CONNECTION, 1/2 ODF SOLDER DRAIN-LINE CONNECTION"
More information needed?
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