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KISS · Jul 9, 2008, 05:19 PM

The compressor delay is very easy to install. Since it says 18-288 VAC it can be installed in the thermostat line. Where? Just about anywhere. Inside or outside. They generally need a little bit of a heatsink.

Th load side is the side toward the relay. It doesn't matter which wire to the relay is interrupted.

The short cycle relay protects your fuse and/or breaker when the power or the stat is turned on and off quickly. In electronic stats, this delay is usually built in. In the mechanical stats it was easy to destroy a fuse block when a short power fail occurred. It helps your compressor too.

hvacservicetech_07 · Jul 9, 2008, 05:23 PM

Why couldn't it be installed on the line voltage exactly?

KISS · Jul 9, 2008, 05:26 PM

It likely can't pass 40-60 Amps of current. It needs to be on the control side.

JuJuFruit · Jul 9, 2008, 05:34 PM

It says 1 amp max on the box. Hubby just gave up on that for tonight. He has a headache from the fan and those wires. This is the first time that he has ever worked on an AC unit. Aside from cleaning it. But when we got a quote of $550, he had to give it a try. All the parts today $106. Also, we wouldn't need the time delay, had the AC guy not blamed the LMT for our problem.

Another HUGE thank you for your help. I don't think I can say thank you enough.

The fan is installed and running. It is blowing cold air, and should cool off hopefully by the time we head to bed.

JuJuFruit · Jul 9, 2008, 05:35 PM

What is the relay? How would he identify it inside the control panel?

hvacservicetech_07 · Jul 9, 2008, 05:37 PM

Originally Posted by JuJuFruit

it says 1 amp max on the box. Hubby just gave up on that for tonight. He has a headache from the fan and those wires. This is the first time that he has ever worked on an AC unit. Aside from cleaning it. But when we got a quote of $550, he had to give it a try. All the parts today $106. Also, we wouldnt need the time delay, had the AC guy not blamed the LMT for our problem.

Another HUGE thank you for your help. I dont think I can say thank you enough.

The fan is installed and running. It is blowing cold air, and should cool off hopefully by the time we head to bed.

Your welcome. Sorry but the other guy is right, it does need to be installed in the control circuit, if it is only rated at 1 amp. Just simply break the 24 volt thermostat wire where it comes into the unit.

hvacservicetech_07 · Jul 9, 2008, 05:39 PM

I think the "relay" you are talking about is the contactor?

JuJuFruit · Jul 9, 2008, 05:42 PM

Not really sure either. I am glad I founf this site. I am positive I will be back tomorrow when I have more time to look around at the other categories.

Also, if I wanted to support a member, does the donated money go directly to that member or to the site?

hvacservicetech_07 · Jul 9, 2008, 05:55 PM

Not sure how the "support a member" works. This is a great site.

KISS · Jul 9, 2008, 08:09 PM

The outdoor unit has a power cable and a t-stat cable. The t-stat cable goes directly to the coil of the relay/contactor. That same thing you were near when you installed the fan motor. It goes click when the outdoor unit goes on.

The short-cycle delay gizmo inserts between either of those wires with the load side of the gizmo toward the relay.

"Support this member" goes directly to the member.

KISS · Jul 9, 2008, 08:16 PM

Hvacservice:

I was composing a response after I gave you the bad rating. You just saw the rating before the response.

Sometimes when reading through responses, things don't seem to make sense. When that happens look at the post times.