cooling
what does the liquid receiver do?
stores liquid refrigerant
thermostat wire is ran in what gauge wire?
18 gauge
What is the PPE necessary for construction sites
Hard Hat, "High-Vis" Vest, safety glasses
the part of the motor that stays in place is called the____________?
Stator
What are the colors of a recovery tank?
grey and yellow
what does an accumulator do?
stops liquid refrigerant from entering the compressor
what is the formula for power?
P= E x I
what is a common this to have when dealing with flames?
fire extinguisher
The part of the motor that rotates is called the ___________?
Rotor
what does ozone consist of?
3 oxygen atoms
what part of the cooling system absorbs heat?
the evaporator
A 40 ohm and 80 ohm resisters are in series, how much is the total resistance
120 ohms
what are PPE for eyes?
safety goggles or glasses
What does ECM stand for?
Electrically Commutated Motor
how often do you need to have your recovery tanks tested?
5 years
what is the order of stages of the vapor compression cycle?
compressor, condenser, expansion (metering device), and vaporization (evaporator)
why would the running amps marks on a data plate(on the equipment) be lower than the calculated amps using ohm's law?
lower voltage (force)
the ratio of a ladder is?
4-1(vertical to horizontal)
PSC stands for_________?
Permanently Split Capacitor Motor
thermostat wire color for heat?
white
lower than atmospheric pressure is measured in what?
microns
what is the relay type component called that allows voltage to pass through to the outdoor motors?
Contactor
what is included in any material or substance in regards to safety?
MSDS
what is the typical RPMs of a residential direct drive blower motor
900-1200 RPMs
thermostat color for blower
green