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Load for feeder #17968
12/04/02 06:44 PM
12/04/02 06:44 PM
S
sparkync  Offline OP
Member
Joined: Oct 2002
Posts: 830
NC
On the Refrigerated building I spoke of recently, I wonder if someone can check my math on the load. I have:

2- 3 phase scroll type compressors with
a RLA of 12.2 amps ( 12.2 X 2)= 24.4
25% of largest motor = 3.5

2 unit coolers inside:
The fans in each unit pulls:3 amps
( 3 X 2 )= 6.0

The defrost cycle for each pulls:
11.7 amps( 2 X 11.7 ) = 23.4

VPL ( I'm not sure what this is) = .8
Anti-sweat heater = 1.47
5 - 100 watt. lights = 4.17

Total load = 63.74

Anybody see that I'm missing something??
I'm presuming the fans run all the time
inside, according to what the rep. said,
even when they are in defrost cycle??
I thought they stopped during defrost,
myself, maybe I misunderstood him. Hope this comes out like I got it typed and not jumbled up...Thanks for the input.. Steve [Linked Image]

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Re: Load for feeder #17969
12/05/02 01:33 PM
12/05/02 01:33 PM
M
mj  Offline
Member
Joined: Jun 2002
Posts: 186
meriidian, ms
check your 3. phase math calculations, i thank you total load will be about 15 amps less


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