Progressive EMS-HW50C unit

ktmrfs wrote:
the ems will wait about 30 seconds (programmable) AFTER it sees 120V to close the contactor to give power to the coach.

SoundGuy wrote:
The OP has a Progressive Industries EMS-HW50C with a user settable delay of either 15" or 2:16 which is set with a jumper on the main circuit board. I've got my own EMS-HW30C currently set with the factory default of 15" for the convenience but once next summer rolls around I'll reset it to 2:16 because the Dometic Brisk II A/C we have doesn't have any built in compressor delay as do some A/C units. It's really annoying as I'd much rather leave the EMS set for a 15" delay but it is what it is and at least the EMS offers me the ability to protect the A/C's compressor whereas without it I can't. :)

ktmrfs wrote:
I'll bet my 30A unit is also a 15 second delay, just SEEMS like 30 Seconds when your waiting for it to kick in!!!

Depends on the make / model you have ... if it's a TRC with time delay they're all set for a 128" delay except the 50 amp Hardwire Plus which is set for 135", if it's a Progressive Industries unit with time delay it will be fixed at 136" if it's a portable but if it's a hardwire model that same delay can be reset to just 15" - one of several reasons I chose the Progressive EMS-HW30C for my own use.

Like you I much prefer the shorter delay of just 15" and would only have use for the longer delay during the summer when we might use the A/C. You're right - waiting for that delay sometimes seems like watching grass grow but your post has given me an idea ... I think I'll add a simple toggle switch to my EMS so I won't have to open the case to remove the time delay jumper which alters the delay from 15" to 136". That way I can leave it set at 15" for convenience but on those few occasions when we do use A/C I can simply switch the EMS delay to 136". :B