Fixed the problems. Additionally, cleaned the coils in my air conditioner, showed me what the problem was and how it was to be repaired. He did NOT try to sell to me contracts for maintenance or any other unnecessary at the time service. I will use them again.
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Explained what he did to tweak my system and why. Let me know if there were any additional needs, he would come back to readjust to my satisfaction.
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Representative was courteous, thorough and efficient in his review, cleaning and prepping of our heating and air conditioning system for the summer months ahead.
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Expansion valve (TXV) on indoor coil is not regulating refrigerant flow properly. Indoor coil is starved for refrigerant Pumped refrigerant back to outdoor unit Flowed nitrogen through the system to keep moisture and air out while system was open Replaced TXV. Pressure tested to 400psi Released nitrogen from the system Connected vacuum pump Pulled down to 300 microns Performed ten minute decay test Vacuum rose to 740 microns after 10 minutes Pulled vacuum down to 260 microns for an additional 10 minutes Opened valves to release refrigerant back to the indoor coil Started up system All numbers are nominal for the current indoor and outdoor conditions
Performed gold cooling maintenance Filter new Blower clean Drain clear Only getting 12.5⁰ delta T across evaporator coil Pulled coil door off, no signs of freezing Top half of the coil is dry Connected refrigerant probes to outdoor unit Charge specification is 10⁰ +/-3⁰ for liquid line subcooling Getting 9⁰ subcool, charge level is correct Suction pressure is a little low Superheat is very high @32⁰... should be more like 10⁰ Expansion valve needs replaced under factory parts warranty Checked all wiring Capacitor tested at rated specification Everything else with the system is in good shape
Service recall Unit requires 30A breaker Installed square D 30A two pole breaker Unit operating normally.
Unit is operational at this time. Cooling but cannot check head pressure valve core broken. Attempted to replace but core is snapped off inside valve. Unit cannot be properly inspected. Could tell coil was clogged on condenser because of airflow problems up top, fan has suction in center and blowing out on outer rim. Unit cannot operate properly during peak heat due to venting issues. Unit should be replaced for best results
Upon arrival found 1 tripped breaker for system. Unit getting 120v not 240v. Reset power and check amp draw. Nothing pulling high amps currently, swapped out all the wire nuts I used when motor was replaced for butt connectors to avoid potential amperage increase. Unit is cooling with 11° subcool. Pulling 9.8 amps total
Remove and replace condenser motor due to motor reversed and stuck in clockwise direction when motor should be counterclockwise. Setup new motor CCW on 1/6hp 240v 5mfd capacitor black does not get used red and white are used and capacitor wires are now yellow and blue. Wash coil
Found condenser fan motor running in reverse. Motor needs replaced.
Cooling preventative maintenance performed Check filter - 20x25x4 new today Check coil for any buildup debris in drain pan and flush with water Set up thermometers Rinse down outdoor coil with garden hose Check capacitor MFD - 40+5 @ 40.79+5.06 Check OD fan Amp - 0.98 Check compressor Amp - 6.92 Verify pressures and HP-SC/LP-SH Delta T - 20° The Air handler and AC are in optimal running conditions.
2019 Armstrong air 2 ton split system attic furnace is running in good condition after today's service. Refrigerant pressures required adjustment due to high superheat and high suction temperature and low pressure. Compressor power supply 370 volt is at 10% below specs reading 32.8mfd with a 33.8uf allowable variance minimum Replace air filter supplied by homeowner and test run thermostat operation in the Attic. Evaporator coil and drain or non-serviceable due to the location access restrictions however the coil does have a primary and secondary drain installed. Evap coils will require additional labor for inspection or repair when the time is necessary. Water flush condenser coil and test run all equipment outside Install new 370 volt power supply rated at 35 + 5
Humidifier was wires up wrong at initial install. I fixed wiring and solenoid valve is bad. Customer wants price to repair or replace
Upon arrival, thernostat is in off mode. Turned on to heat to test heat pump operation. Heat pump comes on and is operating with a 20F temperature rise. Turned system on to emergency heat and it was operating with a 10F temperature rise which is below spec. Upon further investigation, found that the breaker inside of breaker panel for second high voltage supply to air handler was off. After talking with Jamie, he said that the breaker on the airhandler was off aswell but did not know that there was a second breaker for furnace in breaker panel. After turning on breaker, emergency heat temperature rise is 25F and within spec. System was only operating with one of the three heat strips. All three heat strips are operational at ~20A draw, and 240V. System is properly operating at this time.
Performed heating maintenance on a Tempstar 96% efficient two stage natural gas furnace Pulled and cleaned flame sensor Pulled and flushed condensate trap Filter is good Blower OK Wiped down exterior High fire gas pressure set to 3.2"wc with a 58 degree temperature rise. Low fire gas pressure set to 1.3"wc with a 45 degree temperature rise. Furnace operating within factory specifications at this time.
2019 Armstrong Air furnace running in good condition. 16x25x1 air filter in good condition. Clean flame sensor and check ignitor. Visual inspection of burners. 4" galvanized B-vent in good condition and no sign of leaks. 0PPM CO detected during testing. Run test unit in heating mode from thermostat. Delta t of 48F with supply temp of 116F, sp3c Delta t of 30-60F. Blower motor and inducer motor running within spec. System is operating properly, efficiently and ready for Winter.
Install new Bryant HVAC system Equipment: Furnace: 800SB36070M17 Serial: 3824A19882 AC: GA5SAN42400W Serial: 2924X57898 Coil: CVPVA2417XMC 2123J48458 * Honeywell T4 Pro thermostat * Air Filtration- 1" Standard Filter Rack * Condensate Pump * Reconnect to existing gas line and high voltage electric * Transition to existing supply and return ductwork * Start up and commission new system 10 Year manufacturers parts warranty (Annual maintenance must be performed) 10 Year Compressor Warranty (Annual maintenance must be performed) 20 Year Heat Exchanger Warranty (Annual maintenance must be performed) 2 Year Westin Air labor warranty (Annual maintenance must be performed)
Made a refrigerant leak repair on a trane AC condenser.
