Overall Experience
Quality
Price
Convenience
Good service all around, explained what needed to be done and how much cost would be. I was disappointed that his boss told him to forego injecting dye into the system to check for leaks since he seemed to have fixed the problem. I am selling the house and would much prefer the peace of mind knowing that there are positively no more leaks.
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Adjusted blower sheave on RTU 3 to maximum blower speed Had to adjust belt tension to not have belt too tight Installed new belt provided by Jeff. Two split systems for front offices at the main entrance had blower speeds both set to medium-high. Moved both of them to high speed. Small packaged unit on the low roof north of the main entrance: increased blower speed to high.
New expansion valve restricted from system contamination Contaminated due to the hole in the outdoor unit being open for many months.
Replaced expansion valve under parts warranty.
Service recall Refrigerant charge still good Suction pressure low, superheat high Removed txv sensing bulb and heated with a lighter No change in pressure or superheat Signed estimate for non-warranty txv, but it may still have parts warranty.
Replace filters on each unit Wash condenser coils for each unit. Test run cooling operation and verify delta T on each system Flush drain traps on each unit Verify capacitance for each system with capacitors Replace pulley on #2 motor to reduce condensation by speeding airflow up. All systems in good health at this time found no errors.
Service warranty System running 8⁰ subcool Washed filter Adjusted blower speed to a higher rate
Upon arrival inspected thermostat and didn’t find obvious concerns, inspected air handler and found no concerns. Inspected rooftop and found unit running in heat pump function and reversing valve not actuated. Went through thermostat programming and found thermostat programmed for gas heat not heat pump so unit was running heat pump instead of AC. Reprogram and test run unit. Unit is properly cooling now.
Diagnostic inspection on two rooftop systems. First system tested was #5. Inspection of unit showed no issues at this time. Air temperatures, and refrigerant temperatures were measures within spec. Did not witness any icing while testing. Second system tested was #2. System ran in cooling with a high air temperature drop of ~27F. Attempted to adjust motor pulley to increase airflow. Adjusted pulley as far as possible with not much change due to pulley being difficult to adjust due to age and rust. Current temperature drop with pulley adjusted as far as possible is 23-25F. Pulley should be replaced along with a new A61 belt. New pulley will be able to be adjusted further. Pulley size 4 3/4in with 7/8in shaft. May need a proper pulley puller to remove old pulley. Air filters are mostly dirty and should be replaced to help with proper airflow. Both systems are running in cooling at this time.
2011 Carrier Infinity cooling system preventive maintenance inspection, minor maintenance cleaning, filter rotation, humidifier shut down, drain flush, gas heating furnace drain repair from previous years, condenser coil inspection and maintenance cleaning, refrigerant run pressure testing, condenser coil flush 51.6 supply temperature with 119 PSI suction and 12 superheat, 236 head pressure and 9sc. Installed 16x25x4 air filter supplied by homeowners All equipment testing was performed and thermostat test mode and returned to homeowners original settings System is clean safe and ready for summer
System had 0.0 PSI of refrigerant Got authorization to pressure test, evacuate, and recharge system Found a hole inside the heatpump (outdoor unit) The Compressor wires were resting against a refrigerant line, mechanical vibration wore the wire insulation down. The bare wire caused a dead short circuit and blew a hole in the line Using torches and brazing rod, filled the hole. Pressure tested to 410 PSI Held for 15 minutes Evacuated system to 350 microns 3 times Weighed in 7lbs of r410a System operating normally at this time.
2015 r410a heat pump system has lost 1/3 of its charge since last service on August 30th 2024 requiring 39 oz new R410A for full pressure operation. Ultraviolet dye leak search inspection inside and out could not discover any dye at this time. System has had multiple doses of dye and leak stop. one added today and one on record in 2022. Recharge only with dye and leak stop today 39 oz new R410A System has been recharged once a year for at least 3 years with visual dye and electronic leak searches performed each time. Permanent repairs will require the extraction of all the refrigerant and nitrogen pressure testing to isolate the single components inside and outside
2010 Carrier 15 seer 3 ton HP cooling system GOLD esa member PMI Install replacement 16x25x4 Honeywell Merv 11 media filter, disassemble air handler for air coil inspection and drain flush, test run cooling mode at 51°. Run test refrigerant pressures on outdoor unit, 107 and 217 with 16 superheat and 7°sc Dual run capacitor has been replaced in the recent past, test run and inspect electronics in cooling mode Water flush condenser coil and drain channels All equipment is clean safe and ready for summer
Perform gold cooling PMI Replace air filter - 16x25x4 new today gold Add drain pan tablets Shutdown humidifier Check delta T - 19° Capacitor MFD - 40+5 Compressor Amp - 8.9 Fan Amp - 0.92 Verify refrigerant pressures Wash condenser coil with garden hose
Northeast RTU (possibly #2) has a bad condenser fan assembly intermittently humming and vibrating loud enough to be here at ground level Recommend replacing motor & capacitor and fan blade assembly Install OEM totaline carrier replacement condenser fan motor, fan blade, 5uf 370 volt motor capacitor
Install New Daikin FIT HVAC System Air Handler: DFVE36CP1400BA Serial #: 2403068122 15 KW Electric Heat Package Heat Pump: DZ6VSA3010AB Serial #: 2310024708 Daikin One+ Thermostat: DTST-TOU-A Serial #: EA2405005524 Installation: * Reconnect to existing gas line and electric * Transition to existing supply and return ductwork * Start up and commission new system * Aprilaire 1210 (20x25) Media Air Cleaner * Aprilaire 600m Humidifier with Humidistat Warranty: 12 Year Daikin manufacturers Parts Warranty (Annual maintenance must be performed) 2 Year Westin Air Labor Warranty (Annual maintenance must be performed)
