There are many sites on the internet where you can search for manuals for different types of equipment.
If you have a heat pump A/C unit then you have auxillary heat and emergency heat. The EM stands for emergency heat, which is using only your electric heat strips or gas heat, depending on your system. The auxillary heat uses your compressor inside of your outside unit. Say the house is 60 degrees inside and you set your stat to 70, the temperature difference is so great that if the heat pump alone cannot satisfy, then the auxillary heat would come on to assist the heat pump. Say you were to get a leak in either your condenser or evaporator coils, your heat pump would not work on the regular heat setting on the tstat. In this circumstance you would want to use just the emergency heat until a service tech can evaluate the system.
It is just the sum of all hours of availability divided by the total hours of a month. i.e. For December the quantity of hours of service was about 700hrs and the total hours for this month 744; so the availability factor is 700/744=0.94; in other words 94%
Depends on the size of the service. 100 amp service will require 3 gauge, 150 amp service will require 1/0 gauge, and 200 amp service will require 3/0 gauge.
For Service Entrance Cable 600 kcmill (Thousands of circular mils).
On large service entrance services the neutral can be reduced. The amperage of the service and the voltage of the service and the insulation factor of the 500 MCM conductors need to be stated to answer this question correctly.
Many major components of thermal power plants are designed for a service lifetime of about thirty to fifty years. The actual condenser lifetime will depend on a number of factors: quality of materials, impurities in the cooling water, whether the plant is run continuously, etc. From time to time, some of the tubes of the condenser may need to be replaced as one aspect of the periodic maintenance of the plant.
you can simply select "off" on the thermostat to stop operation; however, if you are going to service the ac, the main power cut-off will be within arms reach of the condenser usually located outside .
Unplug the electrical outside service connector for the air condenser. Something is miswired.
Replace the thermostat and service the cooling system.
look right by the compressor and condenser
Replace your thermostat whenever you replace the coolant and service the cooling system. Also replace it if you suspect it is sticking.
The Nissan Sentra thermostat diagram is available from the Nissan service center. This will be provided to you upon request.
When you service the cooling system.
There is what Yamaha calls a thermostatic valve. According to the service manual it is behind the horn underneath the fuel tank. The housing which holds the thermostat is on the end of the hose attached to the thermostat.
Presstek has their own techs for this, call them
IF U look @ the Condenser & find the line that coemes from the top of IT-THATS NOT THE LOW Pressure-Trace the other line @ the bottom of the Condenser & U will find the LOW port.
Service call freon check it out for clogged condenser $100.00