Is it easy to program start and stop times? The one I have now is so complicated.

Yes. For weekdays first hit PRGM and enter the times and temperature, then hit Run to enter them. Repeat for weekend. There are no stop times, you are simply changing the temperature at these entered times.

Can it be used manually. Ie. Without programming

I always use it in manual because I don't like the way the program feature is set up. Just choose heat or cool, fan in auto, and set temp, all you have to do. If you want programmable I would recommend something else.

how do I get manual for my model # aF78

I could not find White Rogers thermostat with your model number. However I did find on designated as "1 F 78" (The spaces are intentional.) Be careful to search for models using the case (upper or lower) and spaces. This is the URL that found: http://www.manualslib.com/manual/194524/White-Rodgers-1-F-78.htmlOne word of advice if you intend to replace the unit. If you have a camera that will do it, take a very closeup photo of the wiring connections before you disturb them. It will save you much grief and, maybe, a service call. I hope this helps. DG

Can it be set for one degree cycle rate, e.g., set temp at 70 so heat will go on at 69 then off at 71?

Don’t understand your question as mine is basically an on-off action. If in heat mode setting 69F, will cause heater to shut off when 69 reached. Heater back on if temp drops below 69F. There’s a little delay, like 1 degree such that heater waits before turning on or off too quickly. Call vendor for more info.

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Emerson 1F78-151 5-2 Day Programmable Thermostat for Single-Stage Systems

Emerson 1F78-151 5-2 Day Programmable Thermostat for Single-Stage Systems

Product ID: 298518260

Details

Brand
Emerson
Special Feature
Programmable
Colour
white
Power Source
Corded
Voltage
24 Volts
Shape
Rectangular

⚡24V power for reliable performance

🔋3 AA batteries included for backup

🕒5-2 day programmable schedule

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S$140

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Stay ahead of the curve with smart comfort control!

RELIABLE POWER - Powered by 24V corded electric source with battery backup to keep settings intact.
MADE IN THE USA - Quality craftsmanship you can trust, supporting local manufacturing.
EFFORTLESS CONTROL - Intuitive button interface with backlit display ensures easy adjustments anytime.
PRECISION SCHEDULING - Customize your week with 5-2 day programming for ultimate comfort and energy savings.
SLEEK CLASSIC DESIGN - Minimalist white rectangular shape blends seamlessly into any modern workspace or home office.

The Emerson 1F78-151 is a 5-2 day programmable thermostat designed for single-stage HVAC systems. Featuring a user-friendly button control with backlit display, it operates on 24 volts with a corded electric power source and includes 3 AA batteries for backup. Its classic white rectangular design mounts easily on walls, offering reliable, customizable temperature management made in the USA.

Specifications

Brand	Emerson
Special Feature	Programmable
Colour	white
Power Source	Corded Electric
Voltage	24 Volts
Shape	Rectangular
Control Type	Button Control
Mounting Type	Wall Mount
Style	Classic
Backlight	Yes
Wattage	1E+1
Number of Batteries	3 AA batteries required. (included)
UPC	735090427795 786710100673 783961279493
Global Trade Identification Number	00786710100673
Country of Origin	USA
Item model number	1F78-151
ASIN	B000PY0LVO

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