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  • Continental CFA60

     fixbear updated 3 days, 11 hours ago 4 Members · 10 Posts
  • Matthew Lawson

    Member
    November 12, 2020 at 9:34 am

    I have a continental freezer that isn’t getting/holding temp. Found a leak in the evaporator coil so it was replaced along with the expansion valve. The box still won’t come down. Looking at the spec sheet from the manufacturer it says 1/2 hp condensing unit but the condensing unit that is installed is 3/4hp. RLA and LRA for compressor on inside of the box and the skid don’t even begin to match. Called continental and they said that is the correct condensing skid for this unit based on S/N but this doesn’t make sense to me. Anyone else have experience with this or have any info on who I can get ahold of to figure out why none of the information matches up.

  • fixbear

    Member
    November 12, 2020 at 11:11 am

    With freezers, it has to do with the design usage, insulation, and door design. With a prep table freezer it all has to be squeezed into a small area with limited ventilation. Often the manufacturer up-sizes the condenser due to how much load change happens and how often the doors are opened. The 1/2 hp might also be the refrigerator spec, since Continental isn’t big on paperwork. What does the model tag say?

    Now, how about a bit more on this unit. Is there adequate air movement through the condenser and evaporator?

    Are all evaporator fans running correctly?

    What are the defrost timer type and settings?

    When the evaporator was replaced, did you replace the dryer and check the superheat of the TXV?

    Is the metal work installed correctly for proper air flow?

    Lastly, was it properly vacuumed and charged? Hopefully with inverted bottle.

  • fixbear

    Member
    November 12, 2020 at 11:44 am

    It’s not uncommon for manufactorers to offer upsized condensers. Check the tag inside on the right wall for amps and it should match the compressor fla amps plus the fans.

    How long has it been operating with the new evaporator? Did it ever cool to freezing?

    What design undercounter is it? Door’s or drawers. Digital or mechanical controls?

    Are all fans in position and working?

  • fixbear

    Member
    November 12, 2020 at 12:44 pm

    it’s not uncommon for them to upsize capacity. Especially if it has drawers.

    did it ever cool after the evaporator replacement?

    Check that all the fans are working correctly. If one is not running the airflow will not go through the coil.

  • fixbear

    Member
    November 13, 2020 at 6:48 am

    I’ve tried to reply to this post 5 times yesterday. Let’s see if it will finally go.

    Makers often up-size there condensers for load or thermal leakage like a drawer unit or optional doors. Are all the fans running correctly and in the right location after the evaporator change? Is the TXV bonded to the tail coil and insulated correctly? Did you change the dryer? New or old R-404?

  • fixbear

    Member
    November 13, 2020 at 10:49 am

    It’s not uncommon for a maker to up size the condenser due to model specifics that cause more heat loss. Like a drawer unit or more doors.

    has it cooled at all since the evaporator change?

    Are the fans all working and in the right location with the baffles in place?

    Did you change the dryer and recharge with new R404?

  • olivero

    Member
    November 13, 2020 at 1:49 pm

    Well, something is obviosuly wrong, if the unit worked fine in the past, I’m sure we can make it work again.

    Is it a pumpdown system? Hot gas defrost? What’s it got?

    Pressures? Refrigerant?

  • fixbear

    Member
    November 13, 2020 at 1:51 pm

    Five ft Prep table freezer with R404 that is starving for refrigerant.

  • ShawnF

    Member
    November 17, 2020 at 7:50 am

    Has the filter dryer been changed? What is the BTU load, what type of refigerant, what are the pressures / temperatures?

  • fixbear

    Member
    November 23, 2020 at 5:36 pm

    Olivero, It’s a under counter 60 inch freezer with the higher capacity 3/4hp condenser.

    I tried posting to it several times, but had to private message him.

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