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  1. G

    Commercial HVAC LineSets

    Not all coverings are UV protected. There is a glue made for sealing the ends together. There is also a paint product that protects against UV but must be reapplied. Not all zip ties are UV resistant especially white. Caution should be used when using ties, if applied too tight it reduces the R...
  2. G

    Receptacles in sunrooms

    R301.2.1.1.1 Non habitable I,II, and III do not require electrical Habitable IV and V require electrical 2015
  3. G

    Name that violation 24 Dec 2018

    What year code and how many wires?
  4. G

    Receptacles in sunrooms

    As you have it typed I,II,III do not require outlets by the design of the AAMA design standard. Space for this area is listed as uninhabitable and unconditioned. Exemption #3 only applies to I,II,and type III
  5. G

    Is a receptacle required in a boxed off column in a dwelling?

    A wall has to be first interpreted. It has been through the ICC and IBC specifically with dimension ratios. this would be by definition a column and not a wall.
  6. G

    Grouping of Grounded Conductors (neutrals)

    Certainly helps when tracing down an issue on a service call.
  7. G

    Is a receptacle required in a boxed off column in a dwelling?

    I do not believe he truly conceived it to be a real wall space, but was using the example to insight thought and conversation.
  8. G

    MC/AC Cable in Patient Care Areas

    MC must have two ground paths required Green color simplifies identification but is not required
  9. G

    Problem with Concrete Encased Electrode

    OUCH!
  10. G

    Is a receptacle required in a boxed off column in a dwelling?

    IBC definition of wall space. A vertical element with a horizontal length to thickness ratio greater than three used to enclose a space. If this was a round column would it require an outlet? If you plug in a floor lamp and move it away from the column would it be a trip hazard?
  11. G

    Is a receptacle required in a boxed off column in a dwelling?

  12. G

    Flex gas line touching roof deck

    Before the fireman is on the roof with a chainsaw all utilities should be shut off to the premises. if the fire was extinguished and fuel to the premise was still on there is a strong probability of a large explosion from re ignition or if electrical the chance of electrocution.
  13. G

    So a HVAC contractor walks into a bar

    readings should be taken at the appliance. C/O is created within 3/4 of an inch of the fossil fuel point of ignition. After the repair was made if a combustion analyzer was used it would have shown the high levels of C/O if it was present and directly related to the appliance. It would not...
  14. G

    Why is water leaking from the furnace pipe in my attic?

    CFM on furnace could also be too high causing flue temperature to be to low and condensing before exiting flue, same scenario as over sized flue or burners under fired. Set with combustion analyzer to eliminate
  15. G

    Cooktop Vent Violation

    My guess would be that he was referencing an open burner and not a sealed burner as your cook top is
  16. G

    wire bending radius

    8 times the overall cable diameter
  17. G

    wire bending radius

    I was guessing at the section Ice I am positive it is in section 300 but do not have a book with me. Try 300.34/ 336 334. 24 the charts are there
  18. G

    wire bending radius

    Should be in 306.34 330.24 NEC
  19. G

    Tankless Gas Water Heaters

    Dedicated recommended by most manufacturers, but not required. No GFCI or AFCI to be used.
  20. G

    HVAC: Isolation smoke damper - '68 NYC Code

    You should find your answer in NFPA 90 HVAC systems over 15K CFM and the damper is installed in the AHU same as in an exhaust system to isolate the contaminents from the air supply duct system.
  21. G

    What does "under 2" of concrete mean"

    Encased would be the correct interpritation
  22. G

    Is there an Electrical building Code for running an Extension cord?

    The equipment is not UL listed for cord and plug usage along with other stated reasons
  23. G

    15 / 20 amp question

    210-21(b)(3) Receptacle Ratings Where connected to a branch circuit supplying two or more receptacles (or outlets), receptacle ratings must correspond with the values listed in Table 210-21(b)(3). Specific receptacle ratings are stipulated for branch circuits that are rated 15, 20, 30, 40, and...
  24. G

    Correct way to wire receptacles in series?

    Look at Francis's examples carefully and his explanation. If it is a Multi wire feed, meaning it is two hot conductors sharing a neutral. The white wire must be wire nutted and pig tailed to the outlet to prevent the circuit from becoming a 220 volt circuit if the neutral is opened when the...
  25. G

    Natural gas connection

    11.1.3.1 Maximum length. Connectors shall have an overall length not to exceed 3 feet (914 mm), except for range and domestic clothes dryer connectors, which shall not exceed 6 feet (1829 mm) in overall length. Measure - ment shall be made along the centerline of the connector. Only one...
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