Media, PA

This job was created to make email estimates for Williamson Alumni Hall main classroom thermostat upgrade. Current thermostat is outdated mercury bulb type. They wanted options that would allow for keypad lockout to prevent students from changing setpoints e.t.c Provided (2) options: 1. Honeywell S1200 Smart thermostat. Can be connected to WiFi and First Alert app and controlled remotely AS WELL AS keypad lockout. The advantage here is being able to monitor the equipment and its performance remotely. Or 2. FocusPro non-WiFi thermostat that does have keypad lockout capability

Water had made its way to ceiling below from 3rd Fl air handler Condensate pump safety open. Wet switch was ok. Replaced all filters 20x24x1 and (2) 16x20x1 Clogged vinyl tubing. I replaced with new going to original location which is 2/8” copper tubing that runs outside one side of the house. Original vinyl tubing was ran inside 3/4” PVC which was not glued. I cannot positively identify where the drin tube terminates. Mrs. Rounds did mention that they see the water dripping fro, one of the windows normally. I need to ask her where she sees the water. Tested pump several times as well as drain pan. No water leaks. Found one of the first floor systems locked out on 04 locked rotor. Needs a hard start kit. Linesets are very long. Installed hard start kit at each of the (2) 2 Ton units. All systems working at this time. Checked temperature splits.

Completed AC tune up for 5 Ton Bosch inverter system Equipment is heat pump/natural gas furnace hybrid installed by Dibiase 12/13/24 1.5 Homeowner replaces Aprilaire 416 filter every 6 months. Has bad allergies so he uses 416 Indoor and outdoor coils in good condition Inspected wiring, controls, electric motors and components; equipment has surge protection Measured temperature split and static pressure Inspected drains; cleared EZ trap, tested pump; added treatment tabs to trap body Assessed refrigerant charge checked pressures. As a reminder the Aprilaire 800 steam humidifier canister will need to be replaced next heating season. Provided email estimate. AC system operating well at this time.

Reviewed jobsite and collected information to provide a proposal to replace commercial split systems for Lipp center. There is no easy way to replace the air handlers, they will have to be broken down to be removed and new AHUs assembled in place.

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.