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rockwind1's avatar
rockwind1
Explorer II
May 01, 2014

fan delay on make timer to help start up for ac generator

along with the spp6, i was going to install one of these delay on make devices to save a couple start up amps.

http://www.amazon.com/Icm-ICM102-Time-Delay-Relay/dp/B000LDGFL4/ref=sr_1_1?s=industrial&ie=UTF8&qid=1398903668&sr=1-1&keywords=delay+on+make+timer

has anyone put one in?

i would be tempted to put it inline with the 110 v fan wire vs. the thermostat wire,

also, my front ac doens't have a wall thermostat, just a "cold-colder" rotating switch on the unit.

any advice or tips from someone who has traveled this path?

thanks for looking at my post, kevin

17 Replies

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  • Larryect's avatar
    Larryect
    Explorer
    May 01, 2014
    That would be great. But, I don't think it is what the OP is suggesting.

    I don't have a wiring diagram for the unit. He either needs to match the voltage to the thermostat voltage and interupt that, or match the votage and amperage of the wire he is suggesting to interrupt.

    When I installed something similar, I did it on the (remote) thermostat wire. I really don't know what is available considering his themostat is built into the distribution box on the unit.
  • TurnThePage's avatar
    TurnThePage
    Explorer
    May 01, 2014
    I added a delay timer, that was suggested by another forum member, which required a resistor be added to specify the delay time. It appears to be no longer available unfortunately. It was added to the fan control fed from the thermostat. The only time it was used was during initial power up of the AC. On a side note, it would be easy enough to simply add a fan on/off switch that would allow you to turn it on yourself after the compressor is on line.
  • TurnThePage's avatar
    TurnThePage
    Explorer
    May 01, 2014
    Larryect wrote:
    The problem I see with what you are suggesting is that relay is rated for 1.5 amps. I suspect the fan has a higher amperage. The relay would not last long before burning up if the fan draws more than 1.5 amps.
    The relay should go in the circuit to turn the blower on, not actually power it.
  • Larryect's avatar
    Larryect
    Explorer
    May 01, 2014
    The problem I see with what you are suggesting is that relay is rated for 1.5 amps. I suspect the fan has a higher amperage. The relay would not last long before burning up if the fan draws more than 1.5 amps.
  • RoyB's avatar
    RoyB
    Explorer II
    May 01, 2014
    I played with the idea a couple of times of turning on the FAN first then flipping to A/C and could get my unit started using the 2KW Honda Generator. It usually would work fine until it cycled the first time and then tripped the breaker.

    If you add a time delay of some sort it would probably have to be active all the time not just for the initial start-up period.

    Roy Ken

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