Media, PA

Completed (3) Heat tune ups for the classroom air handlers. All (3) 16x24x2 filters ok There was (1) loose A35 belt on Unit#3. Mike will replace soon. Inspected wiring, controls and electric motors. Mdoor and outdoor coils in good condition. Measured temperature rise and confirmed operation of hydronic zone valves. The thermostats for units#2 and #3 were set to cool! Noticed that the classroom for unit #2 was not cooling at all. Compressor locked out on low pressure. So I put refrigerant probes on this system. Has a history of needing to be charged R22 and there is no feasible way to replace this system. Provided estimate to add factory charge the system. Completed heat tune ups for (3) Minisplit systems. (1)2 ton unit for machine classroom installed by Dibiase 2022 (2) 9000 BTU units for teachers rooms installed by another contractor. 15-16 Outdoor equipment on the roof. For Each system: Measured temperature rise or split. Indoor and outdoor coils in good condition. Inspected w

Completed heat tune up for Minisplit system with (3) indoor heads. Cleaned washable filters. Inspected indoor and outdoor coils Measured temperature rise at each indoor head. Checked refrigerant charge/Pressures. They recently got the boiler working and the section of baseboard now heats the nurses station. The Minisplits have not been running much at all this winter. System operating well at this time

Completed AC tune up for IT room Minisplit. Runs In cooling to keep room that is heated by electronics at a design temperature. Filters are clean. Inspected indoor and outdoor coils. Inspected drains. In the past there have been (2) service calls when it runs on exceptionally hot days the Minisplit pump cannot keep up. Solution is to run drain to a regular 120V 1/2 gallon condensate pump and pump it outside using 3/8” vinyl tubing. Pump will be mounted to wall just underneath Minisplit head with a pan and 9V water alarm. Will lug pump into available outlet. Will require a short extension cord. Provided the email estimate for this Measured temperature split Checked refrigerant charge Checked amp draw. System operating well at this time.

Completed heat tune up for natural gas boiler. 166,000 BTU (4) Zones Inspected flues and chimney: clear and clean. Inspected and cleaned heat exchanger, burners and burner compartment Inspected pilot assembly. Pilot flame blue with orange tip: Good Inspected hyrdronic components: air elimination, feed valves, expansion tank, circulator. Checked wiring controls and components. A surge protector can be installed at 120V circuit, provided email estimateN Left previous estimate to repair section of 1/2” corroded feed piping Combustion and draft tests: Pass System operating well at this time.

Completed heat tune up for natural gas furnace in greenhouse. Furnace is 9 years old. Standard efficiency 140,000 BTU input Cleaned washable filter Inspected heat exchanger, burners, flue pipe, inducer assembly and hoses; one section of flue pipe has a separated seam. Provided email estimate to replace flue piping Inducer motor bearing are noisy, provided email estimate to replace inducer assembly Inspected hot surface ignitor and verified resistance with meter; ohm reading ok. But ignitor is physically very worn. Provided email estimate to replace Cleaned flame sensor and verified flame rectification circuit Measured temperature rise Checked wiring, controls, electric motors and components; provided email estimate for surge protector. Checked manifold gas pressure Inspected drain and pump, Combustion, draft and smoke tests: Pass Gas furnace is operating well at this time but flue pipe needs attention.

Completed heat tune ups. (2) Minisplit systems with (5) indoor heads each. Cleaned all washable filters. Measured temperature rise at each head. Monitored refrigerant pressures at each system with demand for heating from all heads. Verified defrost cycles. Refrigerant pressures good. The reception post mentioned that around mid day from time to time the units “shut off” and she has to reset all remotes. There were no error codes at outdoor control. Unit did not present any problems during today’s tune up and testing. Voltage feeding units is towards the low side of Randle (measuring 201V) absolute lowest would be 197V. Remember you cannot set remotes of indoor heads tied into o either outdoor unit unit to opposite modes (Heat/Cool). All (5) heads of left side must be set to the same mode. And all (5) heads of right side must be set to same mode.

Completed (8) Heat tune ups all gas furnaces. Replaced all filters Furnaces are all 10 years old or younger with the exception of the (2) Lennox 100,000 BTU furnaces which are 34 years old. These furnaces both pass visual inspection of heat exchanger. For each furnace: 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; units do not have surge protection. Left estimates for surge protectors. Checked manifold gas pressure Inspected drains. Left estimates for (2) wet switches for the attic systems. Combustion, draft and smoke tests: Pass Gas furnaces are operating well at this time. As a reminder the (2) Older R22 AC systems (Back office + Main classroom) underperforming recommend replacing these systems. Main classroom would be fu

Homeowner had let propane get very low. Propane company came out an hour before I arrived to fill tanks. At boiler control found error cod 10 “Flame has extinguished 8 times” Bled propane line of air to the inlet of gas valve by opening the inlet pressure tap. Also cleared air inlet screen. Had a few leaves in it. Then reset control and cleared code. Followed manufacturer procedures and found inlet propane pressure to be a tad low so I increased to that it it now 8.5” at inlet during operation. Also followed procedures to ensure proper gas outlet pressure using a combustion analyzer and watching %C02 in flue gas analysis. Combustion tests Pass. Cycled boiler several times to ensure proper ignition every time. Boiler operating well at this time. She agreed to boiler plan membership. Collected for plan and diagnostic.

(2) PECO Tune ups 1st Floor system Carrier 3 ton heat pump with 80,000 BTU propane furnace dates to 2018. Filter Aprilaire 413 ok 2nd Floor system (attic) 2 Ton Air temp heat pump with 80,000 BTU propane furnace dates to 2019. Filter 24x24x1 I’m good condition He had set up his aux heat lockouts wrong. Reconfigured Ecobee aux heat lockout 35°, compressor lockout 30°. 1st floor Fan speeds for heat pump mode which is same as cooling were way too high. Set for 1800-2000 CFM. Considering it is a 3 ton heat pump I set to target 1200-1400 CFM made the dip switch selections on control accordingly. The second floor unit (2 tons) fan speed was also set to high (1700-1500 CFM) only 800 CFM required. Set fan speed to MED Low. Temp rise improved from 12° to 18°. For each system: Filters ok Indoor and outdoor coils in good condition. Inspected wiring, controls, electric motors and components. Provided email estimates for surge protectors. Measured temperature rise and static pressure Inspe

Completed heat tune up for Welder Shop classroom Minisplit. Cleaned washable filters Indoor and outdoor coils in good condition Measured temperature rise. (71-117=46°) Good Inspected wiring, controls and motors. System has power monitoring and surge protection. Checked refrigerant charge using probe. System operating well at this time.