Compressor
The pump in the outdoor condenser. It moves refrigerant between the indoor evaporator coil and the outdoor coil so heat can leave the house.
The system
See the AC and furnace the way a tech does.
Heating, cooling, new installs, and repairs in Kendallville, Fort Wayne-area homes, and Noble County all come down to the same parts: contactor, capacitor, compressor, coil, heat exchanger, and the refrigerant on the label — R-22 on older equipment, R-410A on most systems we install now.
Click a part on the 3D unit. This is the same language we use on a Kendallville or Fort Wayne-area service call.
New install
How a furnace or AC install actually goes
01
Size the house, not the old box
We look at the house, the ducts, and how you live — then pick a matched Trane, RunTru, or Mitsubishi system. Square-footage charts are a starting point, not the job.
02
Pull the old furnace or condenser
Recover refrigerant the legal way. R-22 gets recovered, never vented. The old pad, vent, and electrical disconnect are inspected before anything new is set.
03
Set the new equipment
Level condenser, correct furnace clearances, new or reused lineset as the job allows, condensate, and a disconnect that matches the nameplate.
04
Braze, vacuum, and charge
Nitrogen while brazing. A deep vacuum on the lineset. A weighed-in R-410A charge. Gauges confirm; they do not replace the scale.
05
Startup: parts that actually run
We watch the contactor pull in, read the capacitor, check compressor and fan amps, set gas pressure and temperature rise, and prove airflow.
06
Walkthrough
Filter size, thermostat, what the outdoor unit should sound like, and who to call. One Kendallville number.
Ready for a replacement? Request a free estimate or see AC installation and furnace installation.
Parts glossary
Every part on the 3D units, in writing
Contactor
compressor contactor
A 24-volt relay that sends 240-volt power to the compressor and outdoor fan when the thermostat calls for cool.
Dual run capacitor
start / run capacitor
Stores a charge that helps the compressor and condenser fan motor start and stay running. Most outdoor units use one dual-run can.
Condenser fan motor
Pulls air through the outdoor coil so the refrigerant can reject heat. If the fan dies, the compressor overheats.
Condenser coil
The outdoor coil. Refrigerant leaves heat here. Grass, cottonwood, and a bent fin pack make the system run hot and short-cycle.
Refrigerant: R-22 and R-410A
Freon, Puron
R-22 is the older chlorine refrigerant. New production is gone; remaining R-22 is for repair only and is expensive. R-410A is the common charge on systems installed over the last 15 years. The two oils and pressures do not mix. A new condenser is almost never a drop-in on an R-22 coil.
Lineset and service valves
The copper pair between the indoor coil and the outdoor unit: suction (large, insulated) and liquid (small). Service valves are where we gauge and charge.
Heat exchanger
The metal chamber that keeps combustion gases away from the air you breathe. A crack is a safety fail, not a parts swap you ignore.
Hot surface ignitor
Glows to light the burners. Fragile. A common no-heat part on January mornings in Noble County.
Flame sensor
A thin rod that proves the burners are lit. If it is dirty, the gas valve opens and then slams shut.
Inducer motor
Pulls combustion air through the heat exchanger and out the vent. The furnace will not open the gas valve if this motor does not prove draft.
Blower motor
Moves air across the heat exchanger and the evaporator coil. PSC motors and ECM / variable-speed motors are both common in this county.
Evaporator coil
A-coil, indoor coil
Sits on the furnace or in the air handler. Refrigerant boils here and absorbs heat from the house air. It must match the outdoor condenser.
TXV / expansion valve
thermostatic expansion valve
Meters liquid refrigerant into the evaporator. A piston is the simpler cousin. Wrong metering is a charge problem that never goes away.
Filter and return
The cheapest part, and the one that kills capacitors, blower motors, and coils when it is ignored.
Control board
The furnace brain: inducer, ignitor, gas valve, blower timings, and the 24-volt signal out to the AC contactor.
Questions
Refrigerant, repairs, installs
Ready when you are
Need a part diagnosed — or a new system?
A short note is enough. If the heat or AC is down, call — that is faster than a form.