Search:

Type: Posts; User: hvactech80

Page 1 of 4 1 2 3 4

Search: Search took 0.01 seconds.

  1. Thread: EPA Dilemma

    by hvactech80
    Replies
    12
    Views
    1,222

    EPA Dilemma

    We are experiencing issues with Allowing any Coil Cleaner to get to Storm Drains--Has anyone else ran in to this and what was your solution--Coils must be Cleaned--Thank you for any Assistance you...
  2. Replies
    16
    Views
    1,549

    Electronic Micron Gauge

    The HVAC Shop has had Different Brands of Elecronic Micron Gauges but cannot Locate one that will last--Would anyone in the Field know of a Good Durable Accurate Electronic Micron Gauge that will...
  3. Replies
    2
    Views
    784

    McQuay-ACZ020AC12-ER10-Failing

    We have a Library and the Admin section is cooled by a McQuay Split System--The outside unit is a McQuay-ACZ020AC12-ER10--Continually Failing on High Cond Press or MHP or High Motor Temp.
    The...
  4. Replies
    1
    Views
    1,047

    McQuay--High Head Pressure--Fan Cycling

    We have numerous McQuay Commercial Condensing Units--The First Condenser fan comes on Immediately--The setting for the second fan is 290 PSIG--Why so High--Would it have anything to do with the...
  5. Replies
    0
    Views
    449

    Preheat Coil Leaking

    Good Afternoon:
    Please submit this Question to the Engineers at Carrier on the MSAC---I have Tried HVAC Partners without success.
    We have a Carrier---39THGFLAA—3—AHK—AA Air Handling Unit with a...
  6. Replies
    3
    Views
    748

    Superheat

    The Superheat is 20 Degrees --Subcooling 15 Degrees--Both Fans Running--RThanks.
  7. Replies
    3
    Views
    748

    McQuay--AGZ--Pressure issues

    We have a 8 Year Old McQuay Split system and have had issues since install.
    The Condensing unit will fail on High Pressure if thev Hot Gas is connected and Low Evap Pressure if the Hot gas is...
  8. Replies
    8
    Views
    1,023

    Grease and Removing Screws

    My Question involes large Motors that come from the factory with Screws in the Grease area--Should these be removed and install Grease fittings?
    I have been informed the factory will install...
  9. Three Phase Scrolls need to run in 1 certain...

    Three Phase Scrolls need to run in 1 certain Direction--Could be going the wrong way.
  10. Replies
    0
    Views
    458

    Water Source Heat Pumps

    We have 45 Climatemaster-Genesis Version--3-5 Ton units with Dehumidification--Does anyone in the Field have this Type and if so--Please give the Pros and Cons--Thank You.
  11. Replies
    0
    Views
    296

    Low Ambient Design

    This is a Design Question--Seems every Commercial Condenser has a Low Ambient Package with the 1st Fan as the Motormaster--Why not the 2nd Fan--I have heard it is to save time and Wire on Assembly??...
  12. Replies
    0
    Views
    462

    Low Ambient Design Question

    :cheers:This is a Design Question--Seems every Commercial Condenser has a Low Ambient Package with the 1st Fan as the Motormaster--Why not the 2nd Fan--I have heard it is to save time and Wire on...
  13. Replies
    3
    Views
    507

    Where is the Time Delay-1 Second

    We have a Carrier--38AKS--028---500 Condensing Unit--We do not have a Delay on the Part Start Contactors but Looking at the Carrier info--the 50 HZ units do have a Delay--Why would the 60HZ units...
  14. Replies
    5
    Views
    1,768

    Thermistor Chart

    Where would be a Good place to look for a Resistance VS Temperature chart for Thermistors--We had a 3K Thermistor on a McQuay--AGZ Chiller with no Chart--it would be great to have a chart for...
  15. Replies
    1
    Views
    562

    Copeland Temperature Recommendations

    I am attaching a Semi Hermetic Check Sheet--Years ago--Copeland had one like this with their Recommended Temps stamped in each Block on the Compressor--Would anyone know where I could find this...
  16. Replies
    3
    Views
    1,190

    Thank You

    Thank you for the Site!!
  17. Replies
    3
    Views
    1,190

    Rheem--RAWC-075CAS

    Would anyone know where I could find any Technical Lierature on a Eheem 7.5 Ton-Condensing Unit--RAWC-075CAS S/N-480G36920984--Thank you.:cliff:
  18. Replies
    1
    Views
    1,592

    Carrier 30 HW Package Chiller-R22

    We have Replaced the Compressor in our 30 HW Chiller- and also the Safety Board--The Compressor is a 06E7299060---S/N-V 30021 28V27.
    The new Safety Board is a 30 GT --We have installed a Manual...
  19. Replies
    19
    Views
    2,174

    Pump Alignment

    Where would be the best area to look in for getting Pump Alignment information on Large Centrifugal PUmps as the Series 1510 Sled--Chill Water for a 5 Story Building.
    These pumps have the Woods...
  20. Replies
    1
    Views
    1,100

    AAON TRouble

    We have a AAON RN-040-3-0-DB04-2C4 S/N--200711-BNGV03199
    We are experiencing issues with Compressor 1--the capacity control is acting up--We are getting 4.9 volts to the board from Siemens...
  21. Replies
    1
    Views
    1,671

    Bad Voltage Ratio Sensor

    We have a AGZ050AS27-ER10 S/N--STNU000600016----McQuay Chiller--R22--Scroll Compressors--1998----We continue to get Bad Voltage Ratio Sensor Shutdowns--Staunton Tech Support for McQuay...
  22. Replies
    5
    Views
    3,993

    Readings on unit

    Just a couple--What is your Water Quality in the Loop--PH?
    What is your Total Superheat at the Compressor--Subcooling--What is the Max Temp you keep your Loop--Maximum Discharge Line Temp on the...
  23. Replies
    5
    Views
    3,993

    Unit info

    Enercon 11
    M/N-ZCGHW060-4302
    S/N--6WK50027-00
    3 Phase 230V

    Thank you:couchhide: for any Help.
  24. Replies
    5
    Views
    3,993

    Enercon 2 Water Source Heat Pump

    :couchhide:
    Would anyone know where to get info on the 1994 Version--Enercon 2--Water Source Heat Pumps--made by AAF---Service and Troubleshooting Manual would be nice--Thanks.
  25. Replies
    4
    Views
    526

    Where are they now!!

    I am John West from Richmond,VA--I am attaching a Photo from a 1986 Class at RSES in Richmond,VA--Instructor--Buford Wade--if anyone Knows where these Techs are--Please update me--Names of Some--Sam...
  26. Poll: We checked the Dampers and Vents--All Open--The...

    We checked the Dampers and Vents--All Open--The Filter had not been installed correctly for Quite a While--Thanks for your input.
  27. Poll: Mammoth Water Source Heat Pump--Low Superheat in Cooling

    :deadhorse:
    We have an Mammoth Water Source Heat Pump--M/N--G034HHD1---S/N--86 K 123114.
    We installed a new Compressor--3 Phase-460V--Tecumseh---Running in Cooling--64 PSIG Suction--275...
  28. Replies
    11
    Views
    1,089

    System

    This System is a Split-Carrier--2 Compressors--28 Ton System--12 Ton and 16 Ton--Lines running underground and uphill--Thanks.
    38AH
  29. Replies
    11
    Views
    1,089

    Oil Pressure Questions

    Good Morning:
    My Question involves Low Net Oil Pressure in a Semi Hermetic Compressor---What are some Causes—and What are some Solutions for correcting this when it is very Hot outside and your next...
  30. Replies
    16
    Views
    7,486

    Trane Roto Lock Fittings

    I was told many years ago--if you have a Compressor change out in a Trane and it has Roto Lock Fittings--Order them with the Compressor--is there a W:worthless:ay to be able to reuse them??
    Thank You
  31. Replies
    6
    Views
    1,446

    TXV inlet Screen Stopped Up--30 OVE -TXV

    I have attached a Photo:
    This is a TXV-Sporlan-OVE 30 Ton--out of a Liquid Chiller--The Old Liquid Drier was a Sporlan 307---The Felt looking Debris--Would it be Possible for part of the Old Drier...
  32. Replies
    1
    Views
    746

    Lost Tech Sheet

    I used to have a Picture of a Semi-Hermetic showing the Proper Temps on all Areas of the Compressor to include Proper NET Oil Pressure for Different Manufacturers--Would anyone have a Location I...
  33. Replies
    3
    Views
    1,170

    ADD ON--You are Correct--The Model...

    ADD ON--You are Correct--The Model is--6DP3R35ME-TSK-800--Sorry about that!!
  34. Replies
    3
    Views
    1,099

    Superheat at the Compressor

    :pop:My Question involves the Total Superheat at the Compressor on a Packaged Liquid Chiller—I have been informed since it is a Packaged unit with a short Piping run—The Superheat will be close to...
  35. Replies
    3
    Views
    1,170

    Copeland Compressor-Inlet Screen

    Would anyone know a Good Reference site on Copeland--06D35ME-TSK-800 Compressors--Trying to get Physical info---Example--Does this Compressor have a Inlet Screen ----Thank you for your Help.:det:
  36. Replies
    5
    Views
    1,004

    Screw Compressor info

    Where would be a good Place to look for Heli-Rotor or Screw Compressors---Thank you for your help.:payattention:
    Technical Info--Operation and Maintenance and Troubleshooting Guides--to include a...
  37. Replies
    8
    Views
    782

    Thanks ChilliWilly

    We are using Silfoss 15.
    What Fluxed Rod would be good for this type of Situation--Copper to Copper--Thanks.
  38. Replies
    8
    Views
    782

    McQuay--Package Chiller--Brazing

    This is in Reference to a McQuay ALP060:
    We are trying to repair a Refrigerant Leak on the Hot Gas Manifold after Compressor--We have tried Steel Brushing Copper line--Sil foss and Flux--Cannot get...
  39. Replies
    1
    Views
    1,559

    McQuay--Liquid Chiller--AGZ Model

    We have a 10+ Year old McQuay Liquid Chiller--We continue to get a Shut Down of Machine Message--Voltage Ratio--The Chiller goes in to Alarm when not being called to come on--This is a Pumpdown...
  40. Thanks--Here is the Fax

    The Fax is--804-717-6038--Thanks and Have a great Year!! Please address it to HVAC Department
  41. Old Maple Chase 09700 Programmable Thermostat

    We have a few of the Maple Chase 09700 Programmable Thermostats on Split Systems incorporating Gas Heat.
    Would anyone know where to get a Manual for these Type Stats--They have some age on...
  42. Replies
    6
    Views
    1,591

    Yes there Was

    We had Gauge Ports--Suction was Lower than Desirable-When the TXV Bulb was Removed and Warmed--No change in Pressure--Could not Locate a Replaceable Head so we ordered a 15 Ton Valve.
    Looks like...
  43. Replies
    6
    Views
    700

    I had a Instructor at RSES in the...

    I had a Instructor at RSES in the 1980's--Mr.Buford Wade--Buford and George Nash always encouraged Professionalism---People Look at you Strange when Part after Part Fails--Not Your Fault but it Looks...
  44. Replies
    6
    Views
    700

    Mexico

    Says Mexico on the Speedtrol--Customer Service has Gone Down the Tubes.
  45. Replies
    6
    Views
    700

    We have checked--Our Model will handle up To--350...

    We have checked--Our Model will handle up To--350 PSIG--P66AAB-9C----We are having a Failure due to Leaking around the Bellows area around 6 Months.
  46. Replies
    6
    Views
    1,591

    TXV

    We have Troubleshot--Found a Defective TXV Head--We are going to install the 15 Ton Valve sometime this week--No Pressure Gauges on the Water Flow--may be restricted??
  47. Replies
    6
    Views
    700

    Condenser Fan Speedtrol Failure

    We have experienced a Large number of Failures on the P66AAB-9C Condenser Fan Speed Control--This is on our Liquid Chillers---The Diaphragm Leaks Oil and Refrigerant--Unit shuts down on Low Pressure....
  48. Replies
    6
    Views
    1,591

    Carrier-Chilled Water System

    We have a Carrier--Condensing unit--38AKS016-521--S/N--4603F64875--DX to a Standard Chiller Barrell--TX15-1--with a Chilled water Pump feeding 18 Convectors.
    The Liquid Line comes from the...
  49. Replies
    3
    Views
    1,219

    Economizer

    Thanks for the Help Guys--Turns out to be the Economizer Board getting a Feedback--We have ordered a new Board--Running Fine with the Econo unhooked--Corrosion on the Solid State Relays.
  50. Replies
    3
    Views
    1,219

    Carrier--50TJQ012

    We installed a New Compressor in the 50 TJQ Rooftop unit---Once we returned to service--Ran good for a short time and Both Condenser Fans cut off--Outside air was 80 Degrees--unit was in cool--This...
Results 1 to 50 of 161
Page 1 of 4 1 2 3 4
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event