- Charge by sub cooling?
- What size resistor to discharge capacitor?
- Phosgene Gas
- hermetic compressor oil change?
- does superseal seal leaks or cause problems?
- Quikshot Acid Flush snake oil or the real thing
- Charging to Superheat or Subcooling
- NATE Study Guide?
- Any Way To Calculate Target Subcool?
- New Install truck
- Problems with sman 3
- Triple Evacuation
- capacitor sizing
- ECM Modular Bad?
- High Suction Pressure and Compressor Damage
- NO AOP posts here please. ONLY Tech to Tech chatter
- Wire size
- TXV hot swap
- 1st foam house - seem to be undersized ?
- 10 DEGREE SPLIT BY DAY 20 AT NIGHT
- Trane Heat Pump with communicating thermostat
- Wireless
- RenewAire erv short run noise
- * What area of learning is crucial in HVAC? *
- infinity controller
- ambient + 30° versus subcooling,superheat
- contactor wiring issue
- R-12 Odd-ball Indoor Package Unit
- lennox TXV
- Irregular temps on loop
- Lennox SPL98UH135V60D-02 Furnace
- coleman coil
- Hot Water baseboad heat..
- Duct Work For Residential Home :gah:
- Payne 3 ton condenser.
- Rheem GRTM with 2 stage cooling
- txv failed
- Holmes On Homes- Holmes & H-VAC Guy both read their anemometers as showing CFM
- got a few question if anyone can help
- A/C 110 box
- Looking for a service manual
- Manual J:Encapsulated foamed attic vs. traditionally vented/insulated
- mild summer in socal THIS SUCKS!!!!!!!!!!!!
- Suction Line size reduction on ductless unit.
- sanyo mini split multi zone
- POLL: Insulating liquid line on a heat pump system.
- Kind of baffled
- Electronic ignition (Not enough spark)
- need help with goodman unit
- AH coils
- a tale of 2 micron gauges
- A simple braze job, now a slight problem.
- MC
- fixing leak
- "I thought I smelled something burning.."
- 2007 Carrier
- Sizing Hard Start
- Kind of baffled repair
- * Charging via Suction Line - Still Work??? *
- heat pump vs. straight cool compressors
- thermal overload
- Environmental fees
- compressor cutting out
- pool of red oil under blower motor
- Dolly questions...
- Trane 4-Ton XL20i Amerage Requirement
- 100 on the high side and 100 on the low side
- wet bulb dry bulb
- good app for iphone.
- goodman...?
- carrier infinity t-stat manual
- Digital Manifold Gauges - Fieldpiece SMAN or Testo 5 Series
- equalized pressures and compressor amps
- Using nitrogen while brazing and pulling a vacuum
- recovery machine
- Contractors and home warranty
- Ice Cold
- Tech's co meter
- .71 Piston ???
- Ballast
- vacuum oil into refrigetatipn system
- Superheat Measurement
- Textbook question - piercing valves
- Lennox Pulse. Scary???
- Coil placement feedback; upstream vs downstream issues?
- 2 piece installs for coil/air handler or coil/furnace?
- rla/lra
- carrier
- setting up electric for 3ton packaged unit
- sh/sc
- cheat sheet?
- how long will nitro filled r22 units b available?
- Being flown from MIchigan to Denver
- Need help reading tempstar info
- Looking for the make of a condenser unit
- How best to check a furnace for leaking carbon monoxide
- TEV Equilizer tube size
- Heat pump with low suction pressure
- Condensate Drain Piping Joints
- Proper condenser fan motor size.
- drain lines
- major MOLD Problem !!!!
- Pressure readings on a True Manufacturing Cooler
- job
- ductwork fabrication
- Goodman HP
- high super heat low suction. any ideas
- 10 ton goodman ac
- Goodman Compressor Question
- lennox
- furnace flanges w/ uncased coils
- need help trane m# twv036b140a1
- Flowing N2 during brazing not important?
- 5/16 liquid line 2.5 ton rheem?
- run caps.
- refrigerant seal
- no superheat, no subcooling
- unplug hose from furnace pressure switch, hook to magnehelic, then blower on high...
- Need Help Sizing Evap
- Gas Analyzer
- york split question,subcool response
- Electrical Troubleshooting
- Thermocoupling question
- IS IT A REAL BAD SIN
- April aire 5000
- Purchase new R-22 Condenser
- 25vna heat pump from carrier
- Fujitsu mini split wiring
- Call this Prepped???
- Underground Piping Leak?
- Very Old Compressor
- single phase copeland scroll running backwards
- 2008 NEC Handbook is a monster!
- Service van or truck, which one to buy?
- Compressor grounded out... bought new one and it grounded that one out, too
- noisy water flow on geo open loop
- 97% Modulating Multi-position
- dehumidifier duct intake locations
- Thermostats
- Suggestions for Rheem 90+ furnace
- 18RAQT-2 Cant figure out the maker...
- The theory of charging an R22 system without a TXV
- mfd capacitor
- Looking for insight
- how did you start your company
- Trane Xl13 issues
- heat xchanger cut off or leave on
- 134a adapters
- Blower motor speed control
- protech fan control 42icm255
- Vacuuming Refrigerator System (Triple Evacuation)
- equal friction vs velocity
- 4 Ton 17" Wide Air Handlers
- recovery machine locked up , HELP!
- subcool
- Mitsubishi Mr Slim HELP!!!
- underfloor heating pipe distance
- Missed match system
- convention canceled due to lack of interest
- Constant Fan option ( 355 Bav Bryant )
- sanyo mini split
- trying to jump out an XM board on heat pump
- R410 Fin Spacing on Evap
- Fieldpiece does it again
- Mod Con boiler with radiant floors
- Electrical Question
- Turbo torch clog?
- looking for heat-strips/ duct heater kits
- KeepRite Furnaces
- ac-heat help
- Heil 80% fault code 8
- Goodman rant (Leaky coils)
- Why 1-1/8" suction line to 7/8" connection?
- Flame Sensor for Nordyne
- Education help
- Holmes Inspection Washed dynamic EAC
- Refrigrerant Leaks?
- Date of Manufacture Help
- A.S. Wont pump down
- seer rating on heat pumps
- what is the trick of txv
- superheat good subcooling high?
- York Heat Pump Controls
- Sacramento New System Recommendations
- Tempstar M#/S# nomenclature
- electrical ? about contactor coils
- Leigh Valley Contractor
- Buderus
- Bryant 355CAV
- Huffing Freon
- No more Lennox Pulse controls
- Compressor ?
- Two Stage Gas Valve Operation
- Yellow Jacket Oil/Dye Injector
- help
- Trane Clean Effects with Coleman Communicating Furnace
- Deciphering American Standard Model #
- What am I missing?
- Goodman web site help please
- Goodman 1/2 hp ECM power head
- best flex
- thermopride OL6 furnaces
- TRane TXV
- Sedna solar assisted a/c are the really efficient?
- Is carrier heat exchanger under warrenty - how can i find out
- UNIT SIZE?
- NC Fuel Gas Code 2009 Question?
- htpmp no pistion
- Service Tech Question
- manual J
- 50's Ceiling radiant heat
- shaking split ac unit
- Vari. Speed AH Motor issue
- Is this a 5 ton York ?
- start & run capacitors
- Water in 80% furnace heatexchanger
- Refresh my memory
- Anyone know who does hydronic heat?...
- reverseing valve need help installing
- Allied gas heater question
- at a loss
- Do you guys change out the filter drier when recover freon?
- REBATES and GREEN ENERGY discounts
- What valve to use?
- Ducted supply air to Clothes Dryer?
- Keeping the bugs out
- need Coleman schematic
- Checking charge on HP in heating
- sorry
- feildpiece combustion check
- Furnace ID
- York Vent sizes& routing
- Pop quiz for new guys ...
- hi-veloicty systems????
- HH cores/dryers
- Better pop quiz
- General air ds25 steam humidifier really disappointment
- Questions for Installing chiminey liner
- charging 410a split on a cold day
- Can I hook up a 4 ton Goodman HeatPump Package without heat strips?
- yorks
- 33 inch York /Luxaire flame rod R & R suggestions
- comes in bunches
- install in attic
- not cooling
- Lennox G20 Damper problem
- failed inspection!?
- Dumped oil out of compressor
- Checking the valves on a scroll
- What was the most bizarre call