AeroElectric-List Digest Archive

Sat 06/19/10


Total Messages Posted: 4



Today's Message Index:
----------------------
 
     1. 03:04 PM - OT: Temperature Control Relay (Jon Finley)
     2. 04:16 PM - Re: OT: Temperature Control Relay (Robert L. Nuckolls, III)
     3. 04:47 PM - Re: OT: Temperature Control Relay (Jon Finley)
     4. 07:33 PM - Re: OT: Temperature Control Relay (Bob McCallum)
 
 
 


Message 1


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    Time: 03:04:10 PM PST US
    Subject: OT: Temperature Control Relay
    From: "Jon Finley" <jon@finleyweb.net>
    =0AHi all,=0A =0AVery off topic. =0A =0AI am looking for a small 12 VDC t emperature control relay. I want to enable the relay at ~120 degrees F. an d disable it at 100 degrees F. The maximum relay capacity can be quite sma ll (I can add a larger relay if required).=0A =0AMy searches are overwhelme d with AC versions and very expensive versions. This seems like something that should be available for about $10.=0A =0AThanks very much!=0A =0AJon


    Message 2


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    Time: 04:16:56 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: OT: Temperature Control Relay
    At 05:02 PM 6/19/2010, you wrote: >Hi all, > >Very off topic. > >I am looking for a small 12 VDC temperature control relay. I want >to enable the relay at ~120 degrees F. and disable it at 100 degrees >F. The maximum relay capacity can be quite small (I can add a >larger relay if required). > >My searches are overwhelmed with AC versions and very expensive >versions. This seems like something that should be available for about $10. What you're looking for (I think) is a thermostat that closes on temperature rise at 120 and does not open until the temperature falls below 100F. Here's a part for clothes dryers. http://tinyurl.com/25ksfkq It's SKU number is 39076 on this page http://tinyurl.com/2gy4tma My local washer repair parts store shows it as an LD120 for $5 net/$11 list. It's a single pole, double throw device so you can use it for open or close on temperature rise. Bob . . .


    Message 3


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    Time: 04:47:29 PM PST US
    From: "Jon Finley" <jon@finleyweb.net>
    Subject: OT: Temperature Control Relay
    Hi Bob, Very, very close! This is to operate a pump that circulates solar heated water thru my hot tub. What you found is functionally correct, my only additional requirement is that I can mount the sensor in water (in the solar tubes). Since I am learning, it might be good for the set points to be adjustable. However; I am after cheap so that is certainly not a requirement. Thanks! Jon From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Saturday, June 19, 2010 5:19 PM Subject: Re: AeroElectric-List: OT: Temperature Control Relay At 05:02 PM 6/19/2010, you wrote: Hi all, Very off topic. I am looking for a small 12 VDC temperature control relay. I want to enable the relay at ~120 degrees F. and disable it at 100 degrees F. The maximum relay capacity can be quite small (I can add a larger relay if required). My searches are overwhelmed with AC versions and very expensive versions. This seems like something that should be available for about $10. What you're looking for (I think) is a thermostat that closes on temperature rise at 120 and does not open until the temperature falls below 100F. Here's a part for clothes dryers. http://tinyurl.com/25ksfkq It's SKU number is 39076 on this page http://tinyurl.com/2gy4tma My local washer repair parts store shows it as an LD120 for $5 net/$11 list. It's a single pole, double throw device so you can use it for open or close on temperature rise. Bob . . . Checked by AVG - www.avg.com 06:35:00


    Message 4


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    Time: 07:33:21 PM PST US
    From: "Bob McCallum" <robert.mccallum2@sympatico.ca>
    Subject: OT: Temperature Control Relay
    Jon; Assuming your circulation system is plastic pipe, can you put a short piece of thin wall metal (copper or aluminium) tube in the water loop at a convenient location and clamp the thermostat offered by Bob to its exterior wall??? The temperature differential through the tube wall would be insignificant and you would then have a readily accessible part which wouldn't require breaking into the water system to replace or experiment with different values should your initial estimation require changes. If your loop system is already metal pipe, just clamp the thermostat offered to the tube wall. Wrapping the assembly in insulation would further ensure virtually no differential between the water temperature and the thermostat's reading. Bob McC _____ From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Jon Finley Sent: Saturday, June 19, 2010 7:47 PM Subject: RE: AeroElectric-List: OT: Temperature Control Relay Hi Bob, Very, very close! This is to operate a pump that circulates solar heated water thru my hot tub. What you found is functionally correct, my only additional requirement is that I can mount the sensor in water (in the solar tubes). Since I am learning, it might be good for the set points to be adjustable. However; I am after cheap so that is certainly not a requirement. Thanks! Jon From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L. Nuckolls, III Sent: Saturday, June 19, 2010 5:19 PM Subject: Re: AeroElectric-List: OT: Temperature Control Relay At 05:02 PM 6/19/2010, you wrote: Hi all, Very off topic. I am looking for a small 12 VDC temperature control relay. I want to enable the relay at ~120 degrees F. and disable it at 100 degrees F. The maximum relay capacity can be quite small (I can add a larger relay if required). My searches are overwhelmed with AC versions and very expensive versions. This seems like something that should be available for about $10. What you're looking for (I think) is a thermostat that closes on temperature rise at 120 and does not open until the temperature falls below 100F. Here's a part for clothes dryers. http://tinyurl.com/25ksfkq It's SKU number is 39076 on this page http://tinyurl.com/2gy4tma My local washer repair parts store shows it as an LD120 for $5 net/$11 list. It's a single pole, double throw device so you can use it for open or close on temperature rise. Bob . . . http://www.matronics.com/Navigator?AeroElectric-List http://forums.matronics.com http://www.matronics.com/contribution Checked by AVG - www.avg.com 06:35:00




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