265 V. Whats up with this? - HVAC-Talk
2016年8月9日 · You have utility supply voltages of 120, 208, 240, 277, 480, then there are the rated voltages of 115, 200, 230, 265, 460, that are used for motors & welding equipment, in the 50 hertz world they use 380Y/220V, 400Y/230V, 415Y/240V, because of some countries using 380/220V, & others 415/240V, the EU harmonized it to 400/230V, quite common in Germany …
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Oversized compressor - HVAC-Talk
2021年6月12日 · Oversized compressor will suffer from too high of a compression ratio. High discharge temps will cook the oil and you'll be replacing it again well before it should be replaced. Use the correct one! “A dying culture invariably exhibits personal rudeness. Bad manners. Lack of consideration for others in minor matters.
Condenser fan motor faster rpm than OEM - HVAC-Talk
2012年5月10日 · Condenser Discharge Air = 102F. Delta T = 7. Condenser Airflow = 4820CFM. BTUH = Delta T X CFM X 1.08. BTUH = 7 X 4820 X 1.08. BTUH = 36439. When the speed of the condenser fan motor is increased or decreased it will change the condenser CFM and directly impact the capacity of the unit. Reply.
Are tire and HVAC schrader valve the same thing? - HVAC-Talk
2010年8月19日 · look at the rubber seals on each and compare them. I would imagine they would be different. Schrader valves for refrigeration need to susstain real high and pretty low temps and resist high pressures. Scraders for car tires. Have to work in very low temps, and very high temps also. Look at Fairbanks Alaska, -75°F.
ComfortNet...failure to communicate - HVAC-Talk
2019年2月1日 · Installed two Goodman ComfortNet systems: upstairs (top floor) and downstairs (bottom two floors). The downstairs system is sized larger than the upstairs system. Both systems have: -- CTK04 communicating thermostat. -- DSZC16 two stage/variable speed heat pump. -- GMVM97 modulating furnace / air handler. The downstairs system appears to be ...
Nordyne fault codes - HVAC-Talk
2012年2月26日 · Nordyne fault codes. Hi guys, haven't been here for a while, but once again, I need your help. I installed a Broan (Nordyne) KG7TC120D-45D in the fall of 2010. Tonight, my customer called with a no heat complaint. The inducer starts up on a call for heat, and then shuts down in apx. 20 seconds, with no ignition trials.
checking micro amps on flame sensor - HVAC-Talk
2005年9月4日 · Thx. Use the FieldPiece accessory head, it has the spade terminals already on the head, unlplug the flame sensor, plug your meter head onto the senso and the wire you pulled off. I just listed my old one on e-bay. Another thing to watch out for is …