Media, PA

Checked all dip switches and wiring. tested voltage at 244 coming into disconnect. Went through all the programming in the outdoor disconnect and thermostat. made some minor adjustments. The surge on the low side is at 215 and high side 265 system supply air temperature is 55.

Installed new condenser fan blade under dibiase 2-year warranty. Unit now has new motor and blade. System operating well at this time.

CU-1/BCU 1 is the problem unit. Trane Odyssey system installed late 2021. Issue was the outdoor unit for Strine dorm closest to front of dorm CU-1 was not running during a demand for cooling during recent warm temperatures. The dorm manager apartment Minisplit is ok as is the other outdoor unit. Put probes on unit. It is sitting at 46psi pressure. Very low. Checked all schrader cores and brazed joint for leaks/refrigerant oil. No signs of leaks there. Indoor coil and drain pan also appeared to be clean. No obvious indications of leaks. Discussed with Steve. He’s going to hunt down the installing contractor. I left estimate to go about leak search if they decide they want us to go about repairs it system. Estimate includes: Step 1 Recover what refrigerant is left Step 2 Pressure test with nitrogen. This air handler is down for now,

Arrived for no cooling issue with LIPP center main air handlers. 1 is 15 tons R22 I had noted it was low on refrigerant in late August 2024. The other is 12.5 Tons R422B Both systems are completely empty of refrigerant. Air handlers are accessed via mounted ladder in mechanical room. Upflow. Air handlers will not fit through access. Upflow. I discussed with Joe. Our management will schedule a site visit for him ASAP. I informed Mike DeFrank.

Reviewed jobsite for 4 unit ductless installation for dorm manager. Collected information for install. Will send proposal over.

Completed QA for 1.5 ton AC install for Dorm manager apartment. New filter size is 16x20x1 Inspected and assessed all aspects of install: mechanical, ductwork, drain and refrigerant piping, controls, wiring. Dropped fan speed from TAP4 to TAP3 based on capacity and airflow chart. This improved temperature split, Found unit running at 0.33SH and 4° Subcooling. This system has adjustable TXV. Turned superheat spring clockwise approximately 3/4 turn, allowed system to run 15 min. At that point 12° Subcool 10 Superheat. Perfect. Also tested heating and made sure Belimo valve opened and fan energized. Good Install passes QA inspection. Very clean install. Minor adjustments only needed.

Completed heat tune up for 120,000 BTU natural gas furnace for Athletic directors side of Restall: Replaced 20x20x1 filter Inspected heat exchanger, burners, flue pipe, inducer assembly and hoses Inspected hot surface ignitor and verified resistance with meter Cleaned flame sensor and verified flame rectification circuit Measured temperature rise and static pressure Checked wiring, controls, electric motors and components; Checked mainofold gas pressure Inspected drain. Combustion, draft and smoke tests: Pass Gas furnace is operating well at this time. Completed heat tune up for Minisplit system, with (2) indoor heads: Filters are clean. Inspected wiring, motors and controls, system has surge protection and power monitoring. Measured temperature rise at each indoor head with both remotes set to high demand heat. Checked refrigerant charge with probe. System operating well at this time.

3/30/26 Barry+Conner Removed failed boiler feed valve and piping and capped off. Cut back 1 1/4” supply to accommodate new Spirovent air eliminator. Installed new Spirovent air eliminator, 1/2” boiler ball valve, backflow preventer with vent piping and pressure reducing feed valve. Also installed (2) 3/4” isolation valves on the supply side which will allow for isolation of boiler components. After fill and testing the boiler safety felief valve began trickling. I discussed with Mike and he agreed to replace. *I did not make this a part of my original estimate for the sake of keeping costs to a minimum but unfortunately it needs to be replaced. Mike agreed. Replaced boiler pressure relief valve. Installed expansion tank at water heater, pressurized to 60psi. Afterwards tested system and hot water. Operating well at this time.

Completed AC tune up for 2.5 Ton Amana AC system 16x20x1 filter ok Indoor and outdoor coils in good condition Inspected wiring, controls, electric motors and components. Indoor blower motor has surge protector, outdoor equipment does not. Provided email estimate Measured temperature split and static pressure Inspected drains; cleared EZ trap, tested pump; added treatment tabs to drain pan. Checked integrity of compressor motor (mega ohm test) Assessed refrigerant charge checked pressures. AC system operating well at this time. *Steam is still on to campus so cooling not truly available until April 17 when Steam will be shut off.

3/27/26 Performed precision heat tune up on 2025 Laars propane gas boiler. Checked all electrical connections and components. Boiler pressure is at 14 psi. Inspected condensation assembly, trap is clear of debris. Inspected ignition assembly all in good working order. Ran both zones on boiler. Tested circulator pumps. Both zones getting hot. Performed combustion test. 2025 Mitsubishi air handler and wall hung. Aprilaire media filter ok. Wasable filters are clean. Checked all electrical connections and components. Checked temperature rise on both. Poured water in condensation drain and tested. Checked amp draw on all motors. Homeowner had already set up the WiFi for the mini split air handler and connected to her phone. Heat pump is working properly at time of service.