Need help to figure out the difference

Hi all,
I'm looking for a 2 HP, and a local vendor propose a 2-1/4 horse Bristol H23B30QDBE as shown in his spec below. But when I doublechecked the spec from Bristol (below as well), the compressor has a BTUH of 30100. If I got it rite, 30100 is approx 11.8 HP or 8.8 kilowatts. I could have probably missed out something here....

Another question:
@45/100 - @45/130: Do these values on the Bristol catalogue refer to the compressor capacity at the SST of 45 degree and SCT at 100 or 130 degree?

Please advice, thks



Bristol compressor
Model: H23B30QDBE

Vendors' spec:
===========
CV: 2-1/4
Capacity in Watts at +5°C: 6,666
Capacity in Watts at 0°C: 5,326
Capacity in Watts at -5°C: 4,147
Capacity in Watts at -10°C: 3,122



Spec below is from Bristol catalogue:
===========================

@45/130
---------
Capacity BTU/H: 30100
Capacity WATTS: 8832
Motor input watts: 3100
ERR/COP BTU/WH: 9.7
ERR/COP W/W: 2.8

@45/100
---------
Capacity BTU/H: 37626
Motor input watts: 2503
EER BTU/WH: 15.0

Hi I'm sorry, I posted the thread at the wrong place, pls forgive

hi KKwong0.
it would seem the 45/100 and 45/130 are ratings in degrees F. SST/ SCT.

Hi Magoo, yap I need to convert F to C. any idea about the HP difference?
Btw, I supposed that the current thread was not at the right place. I reposted it under "technical discusion" yesterday, and the thread vanished this morning. deleted by moderators? any reason?
thks

Hi kkwong0.
you are confusing yourself with SI metric( watts )and old imperial ratings( Btus ).
The Bristol model number gives a nominal rating at a guess, the 23 is nominal 2.3 HP, the 30 is nominal btu x 1000 rating. Depending on SCT the drawn motor watts will change,
what was the original compressor rated capacity in either watts or Btu's, what are the operating conditions design SST /SCT.