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Need help to change the programme settings

My central heating/water programmer has gone haywire, the tie settings are all wrong and I can't work out how to set it to come on twice during a 24 hour period.

Can anyone tell me how to find the operation instructions ?

Thanks

Eunice

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It says on it "Sunvic" and "TLM", but the problem is setting the
programmer, not the thermostat.

Posted on Nov 16, 2008

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What kind of thermostat do you have

Posted on Nov 16, 2008

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Everyday the central air unit keeps our house at a comfortable 73 degrees. Every evening, despite the thermostat setting of 72, the house heats up to 77-79. What's the problem?


Is the sun hitting the t-stat during the day? If its a programmable unit check the programming, perhaps its set for energy sving at night

Jun 21, 2011 | Air Conditioners

Tip

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Did you know that properly using a programmable thermostat in your home is one of the easiest ways you can save energy, money. Homeowners can save about $180 a year by properly setting their programmable thermostats and maintaining those settings. They can achieve significant energy and money savings that are possible through the proper use of your programmable thermostat. Programmable thermostats do two things:
(1) Compare the thermometer reading of a room's temperature to the "ideal" thermostat temperature you select.

(2) Give start-and-stop commands to the heating or cooling system in order to achieve an indoor temperature that is as close to your "ideal" thermostat setting as possible.


Your savings will largely depend on the length of your energy saving program periods and the temperatures set. For example, an energy saving period of 10 hours with the temperature set back 10° will save more than a 5 hour energy saving period with the temperature set back 5°. By maintaining the highest or lowest required temperatures for four or five hours a day instead of 24 hours, a programmable thermostat can pay for itself in energy saved within four years.

A programmable thermostat will keep you and your home comfortable while you are there to enjoy it, and will change the set point at programmed times to an energy savings level when you are not home. The precise temperature control of a programmable, energy-saving thermostat saves wear and tear on high-efficiency heating and cooling equipment by properly cycling the equipment. A programmable thermostat will keep you and your home comfortable while you are there to enjoy it, and will change the set point at programmed times to an energy savings level when you are not home.


Controlling your heating more effectively could save you up to 17% on your heating costs. In fact, during the winter you can save about 3 percent of your heating costs for every degree you lower your thermostat. Begin lowering your heating bill immediately with the pre-programmed 7-day schedule, or modify the programming to suit your lifestyle. By delivering the heating or cooling when you need it, and optimizing temperature for activity, sleep and times you are away you can maximize your comfort level and save energy.

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on Dec 06, 2009 | Air Conditioners

2 Answers

My daughter has just moved house and inherited a Randall 702 time unit for her central heating but no manual was left. Where can she download one for free, please?


This programmer is very easy to use, I wish I could get a modern one so simple.
Use the 6 white buttons along the top to move the time setting bars to the desirded on/off times.
Then using the two rows of switches below decide if you want hot water or heating between the time bars.
Switch 1 is for operation between bars 1 & 2
Switch 2 is for operation between bars 2 & 3
etc
but Switch 6 is for operation between time 6 and time 1 the next day.
The slider switch has 3 positions
Off, Auto (ie the time settings above), and On all the time

Hope this helps but if you are scrapping the programmer please let me know

Dec 18, 2010 | Air Conditioners

1 Answer

The boiler does not fire when hot water is selected although the red light is on. However the boiler fires ok when central heating is switched on and this does then heat the water. Is the problem in the...


Hi. and you are correct, if the boiler fires when the controller is set for central heating to come on, but does not fire when calling for hot water, the controller is either faulty, or not programmed properly. This is what tells the boiler to do on command, so, this is all that it could be.If you no anything about this controller as far as how it is set up, is it a programmable one, voltage on it, does it have wiring terminals on it that are labeled and can you get to them? If you can, and the wires are labeled, you can jumper them out to see if you can bypass the circuitry and get it to fire up on a call for hot water. This is the way to test it, very easy. You have to look at the wiring schematics to find the wires that are 1-hot and 2- hot water control. Jump across the 2 wires and if it fires, the controller is faulty. Careful if this is a high voltage controller as 120/208/230 volt. Check this out first. It can still be done, you just have to be careful not to ground yourself out. It maybe 24 volts. If it is higher voltage, you can kill power and get a insulated lead/jumper wire with clips on each end. Clip them to the terminals you want to jump out and turn on power. This way you are not touching anything. Please let me know the outcome on this and please when rating me as being helpful to you, be kind. I thank you. I will be here if you have more questions or need my help.
Sincerely,
Shastalaker7
A/C, Heating, & Refrigeration Contractor

Jun 17, 2010 | Air Conditioners

2 Answers

Central heat does not blow hot air, just warm air weakly


Sounds like some of the elements are not working. You being in Florida they may not have put very many elements in. It was 61 degrees last week. I know because I'm a Dolphin Fan. You will need a current sensing meter to check the elements.

Jan 04, 2010 | Air Conditioners

1 Answer

My immersion heater keeps tripping out and we have no hot water or central heating, blowing the fuse every time. could we need a powerflush ??


You have an electricl shortage in the system since it keeps tripping or blowing a fuse. Would suggest having system evaluated as soon as possible to prevent any further damage or injury. Good Luck on your repairs

Dave

Oct 20, 2009 | Carrier TSTATHCP Programmable Thermostat...

1 Answer

I need a wire diagram of a central heat and air with a heat pump


W- White (heat)
Y- Yellow (condenser)
G- Green (Indoor fan)
C- Blue (Common 24v)
R- Red (24VAC)
O/B (Only needed if system is a heat pump)

May 07, 2009 | Honeywell Air Conditioners

1 Answer

I have a honeywell ST699B controller for my central heating & water, i walked past it today and the light that indictes the water is on was illuminated. The water is set to come on once a day but not...


i have an st699 programmer its set to go on twice a day heating up but when the wife gets up after ive gone to work the timer is not at the correct time so no heating any ideas as new ones expensive to buy

Jun 25, 2008 | Air Conditioners

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