Cooling preventative maintenance performed Check filter - 16x25x4 due soon 2/25 - landlord will replace 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 @ 40.4+5.03 Verify pressures and HP-SC/LP-SH 330psi 120psi 10° superheat Delta T - 19° The Air handler and AC are in optimal running conditions.

Done

Changed air filters on furnace Found capacitor failed on outdoor unit Also found compressor wire burnt up Repaired burnt wire and installed a new terminal Replaced capacitor System operating normally at this time

Service warranty Upon arrival the system was completely shut down with no blower or geothermal operation for the second floor split system located in the Attic. Thermostat is calling for cooling but reading 86 indoor temp. Attic equipment inspection discovered a tripped off water safety switch in the air coil overflow pan. No water is currently present but has most likely evaporated due to 115° in the attic space. Repositioned safety switch 3/8 inch off the bottom of the pan and out from underneath the line set Recently installed line set insulation is separating from the double-sided tape. (Possible condensation points). Resecured all line set replacement armaflex Cooling system run test from thermostat confirms 20° cooling delta t from 90ra to 70sa Homeowner is resetting temperature on thermostat to 78

Replace bad 40+5 capacitor test run air conditioner and verify refrigerant pressures were adequate. 11° superheat 66° filter new today told homeowner to start washing air conditioner

Install new Trane air conditioner Equipment: Air Conditioner- Trane Model #: 4TTR3042N1000AA Serial #: 234344183F Coil- Trane Uncased A-Coil Model #: 4PXACU42BS3 Serial #: 21233HKT5G Installation: *Reuse existing thermostat *Reconnect to existing high voltage electric *Transition to existing supply ductwork *Start up and commission new system Warranty: This Trane air conditioner is New Old Stock from 2024. The manufacturers parts warranty on it expires 1/28/2029. This air conditioner has never been used and is new in the original factory packaging. 2 Year Westin Air labor warranty (Annual maintenance must be performed)

Turned system on for testing. Let run for approximately 15 minutes to test refrigerant and simulate normal operation procedure. Refrigerant pressures are slightly overcharged, not anything to worry about. Compressor is pulling ~12A while operating. This measurement is withing specifications but on the high end. When shut down, compressor stops instantly. Both the high Amp draw, and instant stopping can indicate a higher than normal amount of friction on the internal of the compressor. Due to the age of the unit, in case of a compressor failure, full system replacement is highly recommended. System is operating at this time but a timeline for operation or breakdown cannot be given. AC model and serial numbers are hard to read. Done over with black sharpie and wiped off to make them legible. Model and serial number put into a note on file.

Checkout refrigerant pressures, Amp draw, and cleanliness of outdoor units. Screenshit data of refrigerant and Amp draw to send to Daikin. Indoor units are operating within spec. West furnace is pulling 7.4A on fan motor, East unit is pulling 6.7A. Both are within spec and the difference is most likely due to ductwork setup. I don't think that blower electrical usage would be counted in the estimated energy usage report as the Daikin system does not monitor that. Photos of electrical and refrigeration systems uploaded to file for future reference. No issues found, nor suspected during today's visit. Only notable thing is that the west side thermostat is in a location where it can get a decent amount of sunlight coming through and warming up that area which can cause longer run times. Daikin can be contacted regarding the energy usage report. Wes or Renee may need to be the ones to contact Daikin as the systems and usage reports are under their name.

Install geothermal loop pipe insulation Insulate all in the house ground loop water lines between the wall foundation and both basement installed split system geothermal units Computer scan both systems, no diagnostics alerts or lockouts since last in-house service Per Tamara, Jackson Geothermal injected leak stop in the groundwater solution Today's running water pressure test is 40 PSI

Attic system Replace both liquid line and suction line split system service King valves Recover all refrigerant Evacuate system Replace both valves Nitrogen pressure test full system for leaks 427psi hold Triple evac with 1 nitrogen purge to 700 microns Recharge to factory specs with previously recovered refrigerant (110 oz R410a) Replace condensate drain trap on attic air coil 3/4cpvc Reseal coil doors and line set insulation in attic Cooling system maintenance on both upstairs and downstairs equipment Both systems are running in very good condition at this time Air filters are on schedule with homeowner Repressurize ground loops from 15 to 50 psi Downstairs system had 18 high pressure service code logged but no hard lockouts or active codes at this time. Suspect heating season condition or low water pressure in the ground loop for cooling season

2021 Tempstar AC running in great condition. 20x25x4 air filter in good condition. Visual inspection of indoor coil. Flush drain pan and drain lines. Run test unit in cooling mode from thermostat. Delta t of 20F with supply temp of 52F. Refrigerant pressures are within spec. High 275psi with 11F SC, low 120psi with 14F SH. Water flushed outdoor coils to remove dirt and debris. 70/7.5 capacitor reading within spec. Outdoor fan motor and compressor are operating within specs. System is operating properly, efficiently and ready for Summer.

Install two replacement high voltage fuses for the hot water generator and flow center 10a glass buss (Waterfurnace premier control board) Reconnect flow center high voltage power to the correct fused relay circuit of the water furnace premier control board Run test system in cooling mode to test flow center antifreeze fluid level Refill two-three gallons freshwater into QT non-pressurized flow center Suspect ground loop has micro or pinhole leaks. Antifreeze level is down since May Recommend homeowner inspect and refill every 1 to 3 months

Water furnace Envision NDV064 package geothermal system is running in fair condition considering a leaky pressurized ground loop system currently running just above 0 psi that also has one of two float center pumps locked up.. the heavy alcohol antifreeze has a on-site reservoir that is full but not pressurized. Recommend homeowner consider upgrading to new non-pressurized 2 pump flow center. Homeowners original complaint of airflow light flashing and intermittent no cooling throughout the summer was addressed with Waterfurnace tech support for assistance. Tech support explained that airflow lights can be triggered falsely and are a nuisance in water furnace Envision equipment brought forth by older technology. Tech support advised turning dip switch 3-3 to the left to stop sensing for RPM. And explained that if a real problem exists a different service code will appear such as high\low pressure or freezing. Air filter is on schedule quarterly with homeowner but does currently appe

Install an adjust OEM replacement motor shiv and A belt Cooling system tune up maintenance and cleaning Water flush micro channel condenser coil Test fan motor power supply Follow up running refrigerant pressure test after recharge one month ago, pressures are perfectly within balance post cleaning Disassemble clean and flush drain assembly trap All equipment is running in very good condition and ready for the remainder of Summer

was completed on a diff job

Full system ultraviolet dye and electronic leak search produced the same results as one month ago however this time upon arrival the system was confirmed with low refrigerant pressure AND a visible oily sludgy discharge dripping on the armaflex of the water lines below the refrigerant King valves inside the split Geo in the basement and was saturated and wet and had to be removed for inspections today Micro leak gel could not detect or pinpoint the leak Electronic testing alerted every time Recharge to full capacity with 1+lb clean recycled r410a Recommend replacing both split system King valves with recovery and reuse of the existing refrigerant 3/4 CPVC drain in attic need a drain trap installed and the threaded mail fitting inthe coil drain pan needs replaced. Seth will prepare estimate with jp after confirming availability of the parts

Upon arrival found compressor would not start up. Inspected terminals and they’re melted and not repairable. Replacement compressor not available for unit. Unfortunately unit needs to be replaced. Furnace 21” Plenum 26”

Performed diagnostic on a 10yr old American standard AC Complaint that system cannot keep up on hot days, temperature increases despite system running non-stop Trane clean effects electronic air cleaner is OK Blower is OK Found a piece of plywood on top of the condenser causing it to recirculate hot air back into itself Removed plywood Condenser coil 100% plugged with lint and/or pollen Washed Condenser coil Allowed system to run and balance out. System low on refrigerant Spec is 10⁰ subcool +/-3⁰ Actual subcool was 0⁰ Added 1lb of R410a Added leak sealant with dye System now running 11⁰ subcool Signed up for maintenance plan Counted today as the cooling maintenance visit, so did not charge for Condenser cleaning. System is operating within factory specifications at this time.

Checked Mitsubishi mini split Set fan to high and turned the Setpoint down to 62⁰ Got a 23⁰ split across the indoor coil Water was running steadily from the drain line outside Outdoor coil is clean Indoor coil is clean

Rheem 3 phase AC located on the roof Said the breaker for the condenser was potentially tripped Checked the compressor and wiring with Ohm meter No short circuits or shorts to ground present Cleaned condenser coil Explained thermostat went blank Setup ladder Found safety drain pan has standing water Cleared condensate trap Loaded the drain pan with treatment tablets Replaced filter

Preventative maintenence inspection on 5 total Cooling units. Two geothermal, two ductless mini splits, and one Trane ducted split system. All systems are operating properly in cooling. Geothermal units flushed drain pans, drain traps, and drain pumps. Larger unit by garage steps has a new 30x32x2 air filter installed, supplied by Robin. Other geothermal unit requires two 14x30x1 air filters. Current filters are in decent condition. Test ran each in first and second stage cooling. Performed heat of Rejection worksheet for each unit including both stages. Ductless mini splits air filters cleaned, and test ran in cooling. Outdoor coils are in clean condition. Control batteries (2xAAA each) are not showing low levels and no corrosion. Basketball court Trane system installed new 20x25x4 filter supplied by Westin Air. Outdoor unit is in great condition. No visible rodent damage and coils are in clean condition. All systems are operating properly with no issues suspected or found. All thermo

Upon arrival AC number 1 was locked out on 999 FP1 service codes pertaining to freezing conditions at the txv. During recent house renovations the discharge line water shut off valve at the flow center was inadvertently shut off stopping all water flow through the first floor 5 series water furnace geothermal. After re-establishing the water flow and testing the equipment the ground loops were found to be at 0 psi for the second time in 2 years. Positive confirmation of 55 PSI repressurization on April 16th 2024 is now at 0 psi again at today's visit. Multiple pressure tests at 55 PSI dropped to 40 PSI within 10 to 15 minutes each time during cooling operation of the equipment The low water pressure did not affect the second floor geothermal equipment operation and did not produce any service codes however this equipment is not designed to run at pressure lower than 15 psi and any actions or symptoms of low water pressure cannot be predicted ***The single geothermal ground loop

2023 Trane AC running in great condition. 20x25x1 air filter in good condition. Humidifier damper is closed. Run test unit in cooling mode from thermostat. Delta t of 18F with supply temp of 54F. Refrigerant pressures are within spec. High 340psi with 12F SC, low 130psi with 20F SH. Outdoor coils are in clean condition. Outdoor fan motor and compressor are operating within specs. System is operating properly, efficiently and ready for Summer.

Install Daikin Aurora Ductless System *Variable Speed Heat Pump: Model #: RXT12AVJU9 Serial #: Y024451 12,000 BTU's 19.5 SEER2 - 11.5 EER2 - 9.7 HSPF2 Heating Operation at -13 Degrees & Above *Daikin Wall Mounted Air Handler Model #: FTXV12AVJU9 Serial #: Y150548 Hand Held Remote Control Long Life Washable Filter Installation: * Installation of electric wiring whip & disconnect * Start up and commission new system Warranty: 12 Year Daikin manufacturers Parts Warranty (Annual maintenance must be performed) 2 Year Westin Air Labor Warranty (Annual maintenance must be performed)

Performed cooling maintenance on a Lennox ac system Filter is new Blower is clean Drain is flowing properly 19⁰ delta T across evaporator coil Refrigerant charge is correct per the chart 15⁰ superheat Capacitor tested in specification Washed Condenser coil with water No concerns found on today's visit System is operating within factory specifications at this time.