Havertown, PA

Follow-up for installation

Issue was Water on floor in a second floor bedroom located directly below air handler, Trap was clogged for Air handler on 3rd floor. Drain pan very dirty. Cleared drain line and trap as well as pan. Provided estimate for clean-out tee and drain pan safety switch. Also provided estimate to replace 115V pump with 240V. Currently it is wire nutted into a 240V air handler circuit with the neutral tied together with ground, Condensate pump discharges to the 3/4” pipe at ground level. Verified flow to this point, Blower wheel very dirty. Provided estimate to remove and clean. There is a considerable amount of biological growth in indoor coil and drain pan. I clean to the best of my ability today. Provided email estimate for UV light system to keep coil and drain pan clean, Homeowner mentioned system does not cool well. After ensuring drain was clear I made demand for cooling from thermostat: System is running at 1.7° Subcooling. Manufacturer target 14° Superheat 30° Suction pressure

Reviewed the home with Elizabeth and asked questions to determine the concerns. Elizabeth has concerns with the main level of the house not cooling to her expectations when she is entertaining. She can have 20 or more people in the first-floor space, and in the middle of the summer, the thermostat was reaching 78°. Collected information to perform load calculation and analysis of ductwork. Ductwork in the basement is shabbily connected, and there are tremendous amounts of air leakage. The system seems to be under high static pressure. I did not have a meter to measure static today. The ducts are not properly connected. There was one on the top that was not even connected, and air leakage was evident. There was also air leakage evident around the coil cabinet and connection between the furnace and coil. The basement space is drywalled for the ceiling, so it will be involved to run ductwork to the opposite side of the room. There is a chase way around the furnace side that gets access

Upon arrival with John Zdon from Mitsubishi technical support everything was tested, and we did hear the beep while in the room. It almost sounded like it was not the unit, but to eliminate all possibilities we disconnected the beeping device off of the unit and we will see if they hear anything over the next week in the meantime John Zdon is gonna give us the information to order a new board and sound device. There are a lot of electronics in the room and there’s a strong possibility that it’s receiving an infrared signal from something else in the room.

Estimate only.

Luis 8-20-26 Performed quality assurance on recently installed Bosch heat pump. Check all settings and equipment. Helped customer set up thermostat on phone. Test electric heat and cool mode. Airflow thermostat settings. Corrected thermostat settings. Customer express units are loud. I set up unit so it runs on ductwork capacity around 2 to 2.5 tons. For future visit don’t change any y1 y2 settings, quality assurance failed due to setting in thermostat and outdoor power wire.

Luis 8-20-26 Performed quality assurance on recently installed attic Bosch heat pump. Test operation test safety switches, I corrected couple items safeties were not activated on thermostat, balance point not set up correctly. Test 7.5 kw heat ok. relocate (2) supple runs in Attic from end cap to side of trunk. Both 6" flex. Customer stated high humidity. I reduced air flow currently set for 3 ton. Previously we think it was 2.5 ton ac unit. I also tune dip switches on outdoor heat pump. System will run in y1 most if the time more, I also set cycle per hour to 1. We run 6 gauge wire to attic air handler from basement, we made junction box and used blue wire nuts. See photos. I talked to service manager About this.

Upon arrival found system not working on the outdoor unit disconnect surge box. It had one E2 code (under current) and two E3 codes (Power outages). I also found that the remote in the bedroom pertaining to that unit was in auto mode. The system periodically beeping three times inside which is an indication of an irregular signal or remote command error. I also checked the outdoor boards,and LEV valves,along with compressor. All of which were tested with tech support on the phone. The next step is to bring a rep from the manufacturer to have a look at the system. I will set that up.

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Luis 7-7-26 Performed quality assurance Check all indoor head and outdoor check all electrical Breaker needs to be 30 amp double pole. We need to come back to replace breaker currently 40 amp. I went over how to operate system. Customer might have other questions. Office to follow up.