A C Timer questions
#1
A C Timer questions
I have a 5K ,115 vac,15amp, room A C Air conditioner that i
would like to put on a timer.
The timer plugs into a A C outlet,and the Air Conditioner plugs into the timer. Timer is rated 115VAC,15 Amps,1820 resistive.
Is this a doable? Thanks
would like to put on a timer.
The timer plugs into a A C outlet,and the Air Conditioner plugs into the timer. Timer is rated 115VAC,15 Amps,1820 resistive.
Is this a doable? Thanks
#2
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would like to see some more amps on that timer rating...the compressor is the major load and if the timer goes to open to shut the unit its not a major draw going off, but if the unit calling and is waitng on the timer to close that is the LOCKED ROTOR draw on start compressor and fan for a millionth of a second...right thru the timer worst is the contacts within the timer wears out sooner(timer closes shows run but AC sits) .then say it was just a ceiling fan or table top oscellating fan....next time at HD check hefftier rated timers..just in case if you ever pull the casing check the rating on the thermostat that does the same load as your timer if its 15 amps rated your good to goNo Beer 4U
#3
One thing...
Is this a newer A/C with electronic controls or knobs for cooling and temp setting? Most electronic units will reset to the off mode when power is removed in my experience, so timer won't do anything except turn it off after a certain time. If thats what you want...shouldn't be an issue.
Is this a newer A/C with electronic controls or knobs for cooling and temp setting? Most electronic units will reset to the off mode when power is removed in my experience, so timer won't do anything except turn it off after a certain time. If thats what you want...shouldn't be an issue.
#6
First, he's not going to find a 15A plug-in timer rated higher than that. 1800W is 15A, so the only way to get a higher rating is one that's hardwired and rated for 20A or a plug-in with a 20A plug. No way is his 5kbtu AC drawing 1800W. It's probably going to be more along the lines of 500-600W, with a starting surge 2-3x that. OP, don't go by the plug, go by the nameplate. It'll tell you exactly what it draws.
Second, a plug-in timer rated at 15A/1800W would be considered 'heavy duty', and will most likely have motors listed as suggested/recommended applications. The timer they got will work just fine. Even if it isn't designed for inductive load, it won't cause any issues anytime soon. Inductive load arcing happens on the break, when it is at the lower 'running load amps'. The startup surge happens on the make, where the arcing is minimal. It'd take thousands of make/breaks to burn the contacts. I've always heard you derate 20-50% for an inductive load on resistive rated contacts, which would still be fine for this unit. But like I said, I'd bet anything this timer is inductive load rated.
Second, a plug-in timer rated at 15A/1800W would be considered 'heavy duty', and will most likely have motors listed as suggested/recommended applications. The timer they got will work just fine. Even if it isn't designed for inductive load, it won't cause any issues anytime soon. Inductive load arcing happens on the break, when it is at the lower 'running load amps'. The startup surge happens on the make, where the arcing is minimal. It'd take thousands of make/breaks to burn the contacts. I've always heard you derate 20-50% for an inductive load on resistive rated contacts, which would still be fine for this unit. But like I said, I'd bet anything this timer is inductive load rated.
#7
I'd have to agree with JerseyMatt on this one. There is no way the 5000 BTU window unit will draw 15 running amps and starting amps is not the same as Locked Rotor Amps (LRA) either. I suspect the OP has a timer similar to this resistive rated plug-in timer by Intermatic which is also rated for motor or air conditioner load of 12 amps.
Heavy-Duty Grounded Timer TN311C | Intermatic, Inc.
If I were specifying a plug-in timer for air conditioning use, however, I'd probably prefer using this one.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
Heavy-Duty Grounded Timer TN311C | Intermatic, Inc.
If I were specifying a plug-in timer for air conditioning use, however, I'd probably prefer using this one.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
#8
If I were specifying a plug-in timer for air conditioning use, however, I'd probably prefer using this one.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
#9
If I were specifying a plug-in timer for air conditioning use, however, I'd probably prefer using this one.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
Air Conditioner & Appliance Timer HB113C | Intermatic, Inc.
#11
I found a outside timer rated "heavy duty",115VAC,15 amps resistive.
Manufacture,sorry ,i forgot the name,listed Pool,outside lighting,etc.
what caught my eye was the "pool" claim.
The Air Conditioner is about 10+ years old with knobs to set functions.
Manufacture,sorry ,i forgot the name,listed Pool,outside lighting,etc.
what caught my eye was the "pool" claim.
The Air Conditioner is about 10+ years old with knobs to set functions.
#15
It's ok, I don't think you'll have any problem with it anytime soon. As Justin said, if 'pool' was one of the suggested applications, it meant the pool pump, which is the same type of load as an air conditioner.