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11-14-2012, 03:44 PM
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#1
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Moderator Emeritus
Join Date: Jul 2009
Location: West Virginia
Posts: 2,039
SUN #897
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O/T Need home thermostat help
I know this isn't Sunline related, but I could use some help. Our heating/cooling system at home has an old dial type mercury thermostat. It controls both heat and cool. There are only two wires coming from the system. The system itself, has a heat/cool switch on the front of it. When it's time to switch over, I simply flip the switch and set the thermostat to the desired temperature.
The thermostat operation has gotten very buggy and I need to replace it. I bought a non-programmable thermostat, but I'm not sure how to proceed. I have a Hunter #42995 Thermostat that I bought for the 2653, but it's needs will have to wait...
Anyone know if I can jump between the heat and cool terminals and just throw the heat/off/cool switch for what mode I need? I would still have to throw the switch on the unit itself.. That's no problem, I just wondered if my idea would work...
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11-14-2012, 04:23 PM
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#2
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Moderator Emeritus
Join Date: Jul 2009
Location: West Virginia
Posts: 2,039
SUN #897
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Ok... I answered my own question... Apparently, it works as a "Heat only" thermostat. Contacts closed and the heat comes on. Contacts open and it cools. Of course, it depends on how the unit's switch is set.
Sorry for the useless thread... I'm trying to give myself something to do...
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11-14-2012, 06:28 PM
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#3
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Moderator
Join Date: Dec 2006
Location: Michigan
Posts: 6,155
SUN #123
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No worries Gary, but this is way beyond me anyway...
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2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9473.8 (as of 6/18/21)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR
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11-14-2012, 07:28 PM
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#4
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Moderator
Join Date: Nov 2006
Location: Ohio
Posts: 12,649
SUN #89
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Gary,
The Hunter you have is a relay contact T stat. It should be able to work with your 2 wire setup. I just cannot remember if the contacts open for cooling or energize for cooling. Using your meter you can test between the Y and RC terminal and see if it opens or closes when the room temp is above the setpoint.
Do you have it up and going?
The last page in the manual shows the wiring schematic
http://www.hunterair.com/ssi/pdf/hun...ers-Manual.pdf
John
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Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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11-14-2012, 08:00 PM
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#5
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Moderator Emeritus
Join Date: Jul 2009
Location: West Virginia
Posts: 2,039
SUN #897
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I had to figure this out my own self... I should have just downloaded the manual! It's up and running perfectly!
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11-14-2012, 08:11 PM
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#6
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Senior Member
Join Date: Jan 2009
Location: Rhode Island
Posts: 1,515
SUN #768
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I am sure this thread and the diagram picture will help the next person with the same question.
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Gene & DW Ginny
2002 Sunline T-2363
2008 Toyota 4-runner 4wd 4.7L V-8
Reese Dual Cam straightline - P3 Brake controller
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11-14-2012, 08:57 PM
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#7
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Moderator
Join Date: Nov 2006
Location: Ohio
Posts: 12,649
SUN #89
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Quote:
Originally Posted by EMD_Driver
It's up and running perfectly!
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Great!
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Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
Google Custom Search For Sunline Owners Club
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