โSep-10-2016 08:35 AM
โSep-10-2016 12:40 PM
dougrainer wrote:rgatijnet1 wrote:dougrainer wrote:
1. Doubt the Transfer switch is bad. It is extremely rare for a transfer switch to only close 1 leg of power.
2. Your EMS senses the OUT OF PHASE 2 -120 legs of power. IF those 2 legs are on the same phase, the EMS assumes you have 30 amp service
3. VERIFY that you have double the line voltage between the 2- 120 legs at the 50 amp service pole(3 and 9 position). IF NOT, you do not have 50 amp service. But, "Cheated" 50 amp service. Cheated is a 50 amp breaker on the same phase supplying ONLY power on a 50 amp breaker and not a TOTAL of 100 amps which is true 50 amp service
4. EMS systems do not have to be "set" to 50 amp service. It is Automatic when connected to true 50 amp service. You cannot even change to 30 or 20 if on 50 amp service.
Do these tests and post. Doug
My Intellitec EMS sytem has a button on the left side to allow me to select 30 or 20 amp service, even if I am plugged in to 50 amp service.
From the EMS manual. Doug
NOTE When connected to 50Amp-240VAC service the Energy Management features of the unit are disabled and the Unit switches all controlled loads"ON".
Besides, if ON 50 amp serviced(100 amps) WHY WOULD YOU WANT OR BE ABLE TO SET 30 0R 20 AMPS????????????????
โSep-10-2016 12:38 PM
โSep-10-2016 12:37 PM
โSep-10-2016 12:34 PM
usersmanual wrote:No need to cover all possibilities. If the supply is correct, the EMS has an issue.
yes I know and that's why I as you have asked the OP to meter across the 120V outs and make sure hes got 240V BUT what If he does have 240V then whats your opinions as to what is complaint is caused by?
My understanding and may be wrong is the EMS works on generater or SP
does it not?
โSep-10-2016 12:30 PM
rgatijnet1 wrote:dougrainer wrote:
1. Doubt the Transfer switch is bad. It is extremely rare for a transfer switch to only close 1 leg of power.
2. Your EMS senses the OUT OF PHASE 2 -120 legs of power. IF those 2 legs are on the same phase, the EMS assumes you have 30 amp service
3. VERIFY that you have double the line voltage between the 2- 120 legs at the 50 amp service pole(3 and 9 position). IF NOT, you do not have 50 amp service. But, "Cheated" 50 amp service. Cheated is a 50 amp breaker on the same phase supplying ONLY power on a 50 amp breaker and not a TOTAL of 100 amps which is true 50 amp service
4. EMS systems do not have to be "set" to 50 amp service. It is Automatic when connected to true 50 amp service. You cannot even change to 30 or 20 if on 50 amp service.
Do these tests and post. Doug
My Intellitec EMS sytem has a button on the left side to allow me to select 30 or 20 amp service, even if I am plugged in to 50 amp service.
โSep-10-2016 12:06 PM
smkettner wrote:usersmanual wrote:
do you people even read the posts?? He clarified the problem
How could it be the EMS if it works perfectly on generator power
He says he can run 2 AC on generator but not on shore power
he says all service/outlets work both ways
his complaint as stated is he has to shut off(example) the HWH
when on shore power to run two AC units but everything works 100% on generator
EMS is registering 30 amp service. Typically a 30 amp adapter will connect both hots of the RV to the single hot of the 30 amp supply. This has zero volts between L1 & L2 in the RV. The EMS is cutting out various loads (normal load shed) because it thinks only 30 amp supply is available. Power would still be available to all items until the total exceeds the 30 amps when the EMS starts limiting.
Turn on the generator and the EMS knows it has full generator power.
So the first issue to verify is if the L1 & L2 of the pedestal has 240 (or 208) volts. Some are not wired properly. The specifics of the supply testing were not given.
โSep-10-2016 11:53 AM
usersmanual wrote:
do you people even read the posts?? He clarified the problem
How could it be the EMS if it works perfectly on generator power
He says he can run 2 AC on generator but not on shore power
he says all service/outlets work both ways
his complaint as stated is he has to shut off(example) the HWH
when on shore power to run two AC units but everything works 100% on generator
โSep-10-2016 11:43 AM
hanko wrote:smkettner wrote:jswat wrote:Just verify for us that you measured 240 volts between L1 & L2.
The outlet checks good with my multimeter.
That is the proper way to describe it. I love the two legs of 120 description. I knew this was going to turn out to be another ( I know more than you post).
โSep-10-2016 11:42 AM
rk911 wrote:rgatijnet1 wrote:
Perhaps your Energy Management System is not set for 50 amps.
that's also what I was thinking but the OP needs to clarify the problem. but in addition if all of the appliances are working but some of the outlets are not then I'd check for a tripped GFI outlet.
โSep-10-2016 10:46 AM
smkettner wrote:jswat wrote:Just verify for us that you measured 240 volts between L1 & L2.
The outlet checks good with my multimeter.
โSep-10-2016 10:43 AM
usersmanual wrote:hanko wrote:
with your voltage tester, check to see if you have 230 volts between phases at the park pedestal, if you do, the problem is inside the coach. Possible a transfer switch issue or a bad two pole 50 amp breaker in the panel
the OP CLEARLY said he has correct voltage at park supply
โSep-10-2016 10:16 AM
โSep-10-2016 10:14 AM
rgatijnet1 wrote:
Perhaps your Energy Management System is not set for 50 amps.
โSep-10-2016 10:05 AM
jswat wrote:Just verify for us that you measured 240 volts between L1 & L2.
The outlet checks good with my multimeter.
โSep-10-2016 10:03 AM
dougrainer wrote:
1. Doubt the Transfer switch is bad. It is extremely rare for a transfer switch to only close 1 leg of power.
2. Your EMS senses the OUT OF PHASE 2 -120 legs of power. IF those 2 legs are on the same phase, the EMS assumes you have 30 amp service
3. VERIFY that you have double the line voltage between the 2- 120 legs at the 50 amp service pole(3 and 9 position). IF NOT, you do not have 50 amp service. But, "Cheated" 50 amp service. Cheated is a 50 amp breaker on the same phase supplying ONLY power on a 50 amp breaker and not a TOTAL of 100 amps which is true 50 amp service
4. EMS systems do not have to be "set" to 50 amp service. It is Automatic when connected to true 50 amp service. You cannot even change to 30 or 20 if on 50 amp service.
Do these tests and post. Doug