Media, PA

They removed a steam valve from steam side but the steam coil is still hot enough to provide heating if needed. Replaced 20x20x1 filter. Measured temperatures rise, Inspected wiring, controls , electric motors. Tested basic operations of AC system. Checked compressor amps, fan amps. Stem is still being delivered to building so until steam is shut off. Oolong will not operate. Air handler operation ok however it is 18 years old which is considered beyond replacement age. Consultations for system replacement are free from Dibiase.

Completed heat tune up for 1 Minisplit. The back unit is down and has been for years. We provided email estimate to replace the outdoor fan motor for this unit. Batteries for remote were missing. Put new batteries in Cleaned washable filters for operational unit. Measured temperature rise and temperature split, Verified refrigerant pressures. System operating well at this time.

All (3) remotes for the Minisplits are missing. I asked a student he says they have been missing for some time. I remember all (3) were on site and Nick and I were able to test all last time I was here August. Provided estimate for (3) Trane Minisplit remotes. You may want to ask the instructors if the pit the, somewhere Cleaned all washable filters. Put refrigerant probes on ports to verify that there is a charge (168psi standing: Good.) Provided estimate to clean (1) Minisplit head. The control room and the back classroom heads head are very dirty. Minisplit system is 16 years old which is considered beyond replacement age. Consultations for system replacement are free from Dibiase.

Completed heat tune up for natural gas furnace. 140,000 BTU natural Replaced 16x24x1 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; there are no surge protectors; left estimate for a surge protector Checked manifold gas pressure Inspected drain and pump. There is a condensate pump safety but no EZ trap. Left estimate for EZ trap. Combustion, draft and smoke tests: Pass Gas furnace is operating well at this time.

Completed heat tune up for hydronic coil air handler: Cleaned washable filter. Inspected indoor coil, Checked wiring and controls. Provided estimate for surge protection for indoor equipment and surge protection for outdoor unit. It is an inverter so surge protection is highly recommended especially for the outdoor equipment as the controls are expensive. Measured temperature rise System operating well at this time.

Equipment that was misbehaving was the 4 ton York R22 unit that serves main classroom. Equipment is 24 years old approximately. They had turned AC on on the recent high temperature days and noticed outdoor unit sounding off. Ultimately found failed 60/5 uF capacitor causing outdoor fan not to run. Replaced capacitor and redid wiring connections as necessary. Tested system R22 pressures are slightly low. Hard to assess because of very low ambient temperatures 45° Called Mike who approved repairs. My professional recommendation is to replace this system. *Would require a site visit to decide the best way to imstall indoor equipment

Arrived to start up system and check refrigerant data. Turned on breaker and set parameters and configured for 208V circuit. 228 overvoltage 197 under voltage Safety open in .5 seconds. Tested system in cooling and heating, monitored refrigerant pressures. Length of pipe between outdoor and 9K BTU indoor is 51’ Length of pipe between outdoor and 18K BTU indoor head is 39’ Based on manufacturer install guid for a 9K head with pip in excess of 25’ charge .22oz/ additional foot of pipe. (26x22oz=5.78oz’ For our length of pip between 18K and outdoor, no charge needed. Total additional charge needed is 5.78 oz. This was added at install. System operating well at this time.

Completed heat tune up for natural gas furnace. Aprilaire 413 filter should be replaced soon. I will be on campus tomorrow to replace. Didn’t have one on the truck 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; there are no surge protectors; left estimate for a surge protector for each of the 2 main circuits of system Checked manifold gas pressure Inspected drains. Drain does not have overfill protection. Provided email estimate for EZ trap. Combustion, draft and smoke tests: Pass Gas furnace is operating well at this time.

Completed heat tune up for natural gas furnace. Replaced 16x20x1 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; there are no surge protectors; left estimate for a surge protector. Checked manifold gas pressure Inspected drain and pump. Added treatment tabs. Combustion, draft and smoke tests: Pass Gas furnace is operating well at this time.

Completed heat tune up for 1.5 Ton Minisplit that serves snack bar, Cleaned washable filters Indoor and outdoor coils ok Measured temperature rise (67-94.5=27.5°) Good Checked refrigerant pressure @ available service port. Noticed a tiny drip at unit housing. It is condensation from the Lineset. The unit had been running in cooling. I was able to pull unit off the wall and wrap an uninsulated piece of refrigerant piping with foam tape. Unit is 15-16 years old which is considered beyond the replacement age of a heat pump Minisplit, but is operating ok fo now. Parts for this unit are no longer available.