Temperature control in boilers

The boiler temperature control acts as a limit control switch, meaning it can be made to open when temperature rises and made to close and/or open when the temperature goes down. This is possible because it has a temperature sensing element. The switch also acts as the central link between the burner and circulator operation. The three types of boiler temperature control are: single acting, dual acting and triple acting.

Although it is not a must to understand how these work since you can always rely on services  of boiler repair Surrey or boiler installation experts in Guildford, it helps a lot for those who want do one of two minor maintenance tasks on their own. Remember, any boiler will require you doing regular maintenance work, and you do not have to call boiler repair experts in Surrey or professionals in boiler installation in Guildford. Doing maintenance practices on your own helps save on costs.

1. Single acting boiler temperature control: This control acts like an on – off switch and is high limit function type of control. It is set to close on a high limit, i.e. the maximum temperature the boiler can attain. It means the boiler is set to turn off on reaching this point – in fact, it is set at 10° less than the high limit setting. The burner can still turn on if called upon to heat. The control in the low limit – which is set at 10° higher than the low limit temperature – is set to start on the burner. However, the burner can still turn off if there is no need for heating. Two single acting boiler temperature controls can be used to control the low and high limit: one is set for high and the other for low limit.

2. Dual acting: Boiler repair experts in Surrey or those who do boiler installation in Guildford can install this type when you need services of a single acting control and a circulator terminal controller. So this type has a high limit/differential function along with controlling the circulator, with the former acting as a single acting temperature control while the latter plays the role of energizing a circulator to distribute heat transfer fluid to heated zones. The circulator is turned on and off by a thermostat as dictated by sensed temperature in the heated space. The circulator is turned off by the opening of the temperature control if temperature falls below the low limit, in order to maintain minimum boiler temperature.

3. Triple acting boiler temperature control: This type has a high and low limit with differential functions, but it adds in a relay to energize the circulator. The high and low limits work the same way as in a Single Acting Boiler Temperature Control. Just as is the case with the Dual Acting Boiler Temperature Control, the thermostat controls the opening and closing (turning on and off) of the circulator. When the temperature of the water drops below the low limit, the circulator is turned off by the opening of the temperature control, and this action helps to maintain a minimum boiler temperature.

Air Conditioning Services to Take Care of Your AC Unit

The air conditioning unit at your home might become faulty during the summer season, which is the worst thing to face. This is the peak time of the year when you require your AC the most. As a result, the machine undergoes a lot of pressure to cool the interiors of your house. The moving parts inside the unit bear a lot of wear and tear, which might result in frequent problems in the unit. Thus, it is important that you maintain your AC properly throughout the summers. With the help of reliable air conditioning services in your town, you do not have to deal with the scorching heat on account of your AC damage. So, whenever you sense something abnormal with the functioning of your air conditioner, call upon the technician to fix it up.

Do ensure that you hire someone who is well conversant with the job and offers you immediate service during these hot months. Any kind of delay in servicing your AC might result in further damage and can even be expensive. The air condition servicing companies offer you some basic services of the unit, which can ensure its smooth functioning.

Air Conditioning Filters:
The filters in an air conditioner require the most amount of maintenance. Generally, filters last for three months but when put to constant use during the summers, they need checking frequently. Dirty and clogged filters block the normal flow of air and reduce the efficiency of the system. This in turn also affects the capacity to absorb heat by the coil. Replacing dirty filters can help in lowering the energy consumption of your AC by almost 5% to 15%. When you hire building services engineers for AC maintenance works, they usually advise you to replace the filters for the smooth functioning of the system. This service is quite affordable as well and helps you to save a lot on energy bills.

Air Conditioning Coils:
The evaporator coil of your AC is prone to collect a lot of dirt over the time. The technician who arrives for maintenance service also checks and cleans this part so that the coil can absorb more heat. You must also take care to minimize the amount of debris near the condenser. Clean the area around the coil, trim foliage and remove any kind of dirt to ensure sufficient flow of air around the condenser unit.

When you hire a professional for air conditioning services in Surrey, make sure he does the following:
The right amount of refrigerant must be checked.
He must use a leak detector to test any refrigerant leaks.
He must capture the refrigerant that evacuates from the system instead of releasing it illegally in the atmosphere.
Must check whether the thermostat is accurate.
Oil motors and inspects the belts for wear and tightness.
Measure the flow of air via the evaporator coil.
Must apply a non-conductive coating if essential and should also tighten and clean connections.

These regular maintenance tasks of the air conditioning unit by a service technician help you to find out and fix problems in the system with ease.