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3 years ago

Relay of thermostate is not working why

1 answer:

Colt1911 [192]3 years ago

7 0

Check the power source. Your thermostat may just not be connected right or at all. A blown fuse, tripped circuit breaker or dead batteries will prevent the thermostat from turning on your furnace.

Dirty thermostat? That’ll cause issues. Clean up any dust, dirt, spider webs and other debris. Any of these things can coat the inside of the thermostat and interfere with both electrical and mechanical functions of the thermostat. Put this on your get-ready-for-winter cleaning list. Just use a soft, clean brush to clean the inside components gently. Don’t get anything wet. Also you can use a can of compressed air, such as is used for electronics, to clear debris.

Check for any loose wires or terminal screws inside the thermostat. Make sure wires aren’t corroded or detached. Never remove the thermostat cover without removing the batteries or turning off the power at the fuse or breaker box. Tighten screws and secure loose wires if needed.

It may be time to replace your thermostat is it’s old. They aren’t meant to last forever and an old thermostat may be costing you a lot of money in wasted energy and time spent tinkering with an outdated model. There are great programmable thermostats available now that are easy to use and simple to connect to your existing HVAC system. Click here for more info on programmable thermostats.

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Air, considered an ideal gas, is contained in an insulated piston-cylinder assembly outfitted with a paddle wheel. It is initial

Maru [420]

Our data are,

State 1:

$P_1= 10psi=68.95kPa\\V_1 = 1ft^3=0.02831m^3\\T_1 = 100\°F = 310.93K$

State 2:

$P_2 =5psi=34.474kPa\\V_2 = 3ft^3=0.0899m^3$

We know as well that $3BTU=3.16kJ/K$

To find the mass we apply the ideal gas formula, which is given by

$P_1V_1=mRT_1$

Re-arrange for m,

$m= \frac{P_1V_1}{RT_1}\\m= \frac{68.95*0.02831}{(0.287)310.9}\\m=0.021893kg=0.04806lbm\\$

Because of the pressure, temperature and volume ratio of state 1 and 2, we have to

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

Replacing,

$T_2 = \frac{P_2V_2}{P_1V_1}T_1\\T_2 =\frac{34.474*0.0844}{68.95*0.02831}*310.93\\T_2 = 464.217K=375.5\°F$

For conservative energy we have, (Cv = 0.718)

$W = m C_v = 0.718 \Delta T +dw\\dw = W - mv\Delta T\\dw = 3.16-(0.0218*0.718)(454.127-310.93)\\dw = 0.765kJ=0.72BTU$

3 0

3 years ago

a boy looks at the reflection of his digital watch in a plane mirror and thinks the time is 10:11. what is the correct time?

Gekata [30.6K]

Answer:

11:10 will be the time. reflection causes the object to be flipped when you see its image at the mirror

6 0

3 years ago

Name three elements that can be found on the periodic table

jek_recluse [69]

Answer:

metals, nonmetals, and metalloids.

Explanation:

6 0

3 years ago

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Ou are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. the soccer ball i

Cloud [144]

<span>9.16 meters First, split the velocity into horizontal and vertical components. h = 21 cos(47Â°) = 21 * 0.744270977 = 15.62969052 m/s v = 21 sin(47Â°) = 21 * 0.731353702 = 15.35842773 m/s Now determine how many seconds the ball had to travel to reach 57 meters. T = 57 m / 15.62969052 m/s = 3.647 s height of the ball at time T is d = vT - 0.5AT^2 where v = initial velocity T = Time A = acceleration due to gravity (9.8m/s^2) Plug in the known values d = (15.35842773 m/s)(3.647 s) - 0.5 9.8 m/s^2 (3.647 s)^2 d = 56.01219 m - 4.9 m/s^2 (13.30061s^2) d = 56.01219 m - 65.17298 m d = -9.1608 m So the ball fell a total of 9.16 meters, which means that the building was 9.16 meters tall.</span>

3 0

3 years ago

All ions are atoms with a (2 points)

Andrews [41]

This could be wrong but I am giving a decent suggestion: All ions are atoms with a negative charge.

8 0

4 years ago

Read 2 more answers