Community Forums

garyre · 07-11-2019, 08:36 AM

Still trying to locate problem with front A/C #1. The unit will run fine on shore power and will not run off generator, the the ECC thermostat control continues to shed power to the unit and will not start or run.

The Intellitec manual and block diagram shows an additional "Transfer Relay Delay PN#00-00331-00) for units with 5KW generators.

In systems using 5 KW generator sets, an additional change-over or transfer relay is used to transfer the load
of the larger A/C system (usually the front system) to the generator’s second output to utilize generator's full
output capability. In this situation the ECC load shedding features will remain unchanged, but the Current
Sensor will not measure the load current going to the larger (front) A/C system when the generator is running.
If the measured load currents through the current sensor continue to exceed 30 Amps with the smaller (rear)
A/C system shed, the ECC Control Module will shed the larger (front) A/C system to prevent over load of the
generator

Any idea where I can locate this Delay Relay? This relay may be the problem since it is the only additional relay in the system for the generator and last relay in the circuit for the generator power. Shore power bypasses this delay relay and the ECC control module seems to work fine on shore power.

Any help and advise is much appreciated..

Tha_Rooster · 07-12-2019, 05:34 AM

Quote:

Originally Posted by garyre

Still trying to locate problem with front A/C #1. The unit will run fine on shore power and will not run off generator, the the ECC thermostat control continues to shed power to the unit and will not start or run.

The Intellitec manual and block diagram shows an additional "Transfer Relay Delay PN#00-00331-00) for units with 5KW generators.

In systems using 5 KW generator sets, an additional change-over or transfer relay is used to transfer the load
of the larger A/C system (usually the front system) to the generator’s second output to utilize generator's full
output capability. In this situation the ECC load shedding features will remain unchanged, but the Current
Sensor will not measure the load current going to the larger (front) A/C system when the generator is running.
If the measured load currents through the current sensor continue to exceed 30 Amps with the smaller (rear)
A/C system shed, the ECC Control Module will shed the larger (front) A/C system to prevent over load of the
generator

Any idea where I can locate this Delay Relay? This relay may be the problem since it is the only additional relay in the system for the generator and last relay in the circuit for the generator power. Shore power bypasses this delay relay and the ECC control module seems to work fine on shore power.

Any help and advise is much appreciated..

Trip breaker on the genny?

garyre · 07-12-2019, 09:16 AM

I have already checked the generator breakers and good.. The AC has 120VAC and fan will run, compressor will not start due to ECC "Shed". I have looked through all wiring diagrams and do not see this relay.

Seems to me this would be a common problem that others would have also experienced.

randyxa · 07-18-2019, 11:27 AM

Quote:

Originally Posted by garyre

I have already checked the generator breakers and good.. The AC has 120VAC and fan will run, compressor will not start due to ECC "Shed". I have looked through all wiring diagrams and do not see this relay.

Seems to me this would be a common problem that others would have also experienced.

I spoke with a tech for Intellitec, this is a known issue and the fix is to have a load, however small going when you turn that on.
He suggested plugging in a night lite or something similar.
i just turn on my TV for a moment, sounds goofy but it did work.

garyre · 07-20-2019, 09:16 PM

Thanks for suggestion, I will give it a try when I get back home...

cwit · 07-27-2019, 01:35 PM

I found mine next to my transfer switch behind breaker box. My motor home is not the same as your although it is Fleetwood.

garyre · 08-01-2019, 10:18 PM

Randy,
Your suggestion worked! I just turn on the low fan for AC2 and then AC1 with generator running, no shed of power when compressor relay engages.
Thanks very much...hope it also helps others...
Gary

randyxa · 08-01-2019, 10:52 PM

Quote:

Originally Posted by garyre

Randy,
Your suggestion worked! I just turn on the low fan for AC2 and then AC1 with generator running, no shed of power when compressor relay engages.
Thanks very much...hope it also helps others...
Gary

a rather dumb solution but glad I was able to help