PDA

View Full Version : temperature problem



Brutus
05-09-2010, 02:12 PM
Proper valve operation can be determined by measuring superheat. If too little refrigerant is being fed
to the evaporator, the superheat will be high; if too much refrigerant is being supplied, the superheat
will be low. The correct superheat setting is between 10 and 15°F (5.6 and 8.3°C).


Adjustment

To adjust the superheat setting, proceed as follows:
1. Remove the valve cap at the bottom of the valve.
2. Turn the adjusting stem counterclockwise to lower the superheat.
3. Turn the adjusting stem clockwise to increase the superheat.

Just read this article about superheat and i found it confusing regarding the two temperature given can anyone please explain what does it mean. thank you.

NoNickName
05-09-2010, 03:21 PM
One is farenheit, the other is celsius centrigrades, which is wrong because temperature differentials should be in kelvins

nike123
05-09-2010, 06:34 PM
One is farenheit, the other is celsius centrigrades, which is wrong because temperature differentials should be in kelvins
Not exactly:

Thermodynamic temperature: kelvin (K)

The kelvin is 1/273.16 of the thermodynamic temperature of the triple point of water.

The unit kelvin and its symbol K should be used to express both thermodynamic temperature and an interval or a difference of temperature. In addition to the thermodynamic temperature (symbol T) there is also the Celsius (symbol t) defined by the equation t=T-T0 where T0=273.15 K. Celsius temperature is expressed in degree Celsius (symbol C). The unit 'degree Celsius' is equal to the unit 'kelvin', and a temperature interval or a difference of temperature may also be expressed in degrees Celsius. (The word degree and the sign o must not be used with kelvin or K).



http://www.gordonengland.co.uk/conversion/sibase.htm

Brutus
07-09-2010, 12:29 PM
thank you very much!