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Old 07-18-2010, 08:31 PM   #1
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Default Dewalt Book question

Hey Guys Im new to this site so forgive me. I have a Dewalt code reference book. One part is minimum wire ampacity for a package heat pump. Here are the details

Model:acesre6333 serial 4242424


ac volts 208/230 ph 1 hertz 60
volt max 253 min 197 min circ amp 22.1
com pressor rla 14.5 lra 82 fuse max amps 35
cond motor fla 1.6 hp charge 164
blower motor fla 2.4 hp 1/3
factory test psig low side 150 high side 300


min hacr
circ breaker amps 30
this equip suitable for outdoor use only
when installing one of the heat kits permanently identify the model on this name plate
mop
model vac ph # 1 #2 kw
khjgc 240 1 60 9.5


mop max overcurrent protection


I get the 90 amp breaker result, but for the minimum wire ampacity the come up with 79.3 amps. Dose anyone get that?

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Old 07-18-2010, 09:10 PM   #2
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Are you a Electrician or a HVAC guy?

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Old 07-18-2010, 10:18 PM   #3
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I have my journey electrical card but have always worked in hvac. Maybe one day I will cross over
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Old 07-18-2010, 10:22 PM   #4
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I laugh at how some people think that they can wire a light and receptical makes them an electrician
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Old 07-18-2010, 10:30 PM   #5
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I have my journey electrical card but have always worked in hvac. Maybe one day I will cross over
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Old 07-18-2010, 10:51 PM   #6
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79.3 amps?

Check out the NEC sections 440.6 (A) and 240.4 (G) because you're way off with the 90 amp breaker too.
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Old 07-19-2010, 06:14 AM   #7
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30 will do the heat pump 60 for 9.5kw heat strip. I cansend youapic from the book.
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Old 07-19-2010, 06:19 AM   #8
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Quote:
Originally Posted by huckabeecj View Post
Hey Guys Im new to this site so forgive me. I have a Dewalt code reference book. One part is minimum wire ampacity for a package heat pump. Here are the details

Model:acesre6333 serial 4242424


ac volts 208/230 ph 1 hertz 60
volt max 253 min 197 min circ amp 22.1
com pressor rla 14.5 lra 82 fuse max amps 35
cond motor fla 1.6 hp charge 164
blower motor fla 2.4 hp 1/3
factory test psig low side 150 high side 300


min hacr
circ breaker amps 30
this equip suitable for outdoor use only
when installing one of the heat kits permanently identify the model on this name plate
mop
model vac ph # 1 #2 kw
khjgc 240 1 60 9.5


mop max overcurrent protection


I get the 90 amp breaker result, but for the minimum wire ampacity the come up with 79.3 amps. Dose anyone get that?


I'm not following you.The a/c has a minimum circuit ampacity of 22.1 and a max breaker of 35. Size your wire to the 22.1 and you should be good.

Without seeing which strip is in the unit a 30amp breaker may be correct.
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Old 07-19-2010, 12:15 PM   #9
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Originally Posted by huckabeecj View Post
I have my journey electrical card but have always worked in hvac. Maybe one day I will cross over
I would like to mess with learning how to service AC unit's so I could take care of my own.

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