Oil in Basepans, on Coils, or on Shipping Boxes of Products

Goodman recently released Service Bulletin SA-027.

From Goodman:

Occasionally we receive reports of oil in the basepan, on the coil or on the shipping box as products are being installed. Due to the variability of manufacturing processes used to produce coil fins these surfaces can, on occasion, be left with excess oil which can wick out onto the box or the basepan. These processes are continually monitored and efforts are taken to minimize the use of these oils.

Note that finding excess fin oil in the basepan does not indicate the presence of a leak in the refrigeration system. If a leak is suspected, the standard procedures for locating the leak should be followed, which may include checking the unit for pressure and/or using a leak detector.

Excess fin oil on the coil or in the basepan does not affect the performance of the system.

For questions, please contact HVAC Distributors Technical Services Department.

Goodman Manufacturing Introduces U.S. Alumacoil as Coil and Air Handler Manufacturer

Goodman Manufacturing issued Product Marketing News (PMN) C-GN-OT-972 announcing that safety and rating plates on common coils and air handlers will list U.S. Alumacoil™ as the manufacturer, starting with units produced August 2015.

U.S. Alumacoil is a registered business name (D/B/A) for Goodman Manufacturing Company, L.P.

The purpose of the change is to consolidate these common components under a neutral name to ensure that you can present systems as Amana, EverRest or your private label without the distraction of a different brand name on the common components. The products are still manufactured in Goodman’s U.S. facilities by Goodman Manufacturing.

According to the PMN, the name U.S. Alumacoil was chosen to celebrate Goodman Manufacturing’s continued focus on U.S.-based assembly and manufacturing facilities and the fact that Goodman was the first HVAC manufacturer to produce an All-Aluminum evaporator coil.

As an HVAC Distributors’ customer, please note that:

  1. When you receive U.S. Alumacoil-branded product, it is the same Goodman®/Amana® common product that you have received from us in the past. AHRI ratings for the product are the same. Product model numbers are the same. The only change is the manufacturer listed on the safety and rating plate (U.S. Alumacoil instead of Goodman Manufacturing, L.P.).
  2. The common unit carries the warranty of the outdoor unit brand.
  3. If you re-badge your products with a private label, continue to do so with these products. If you would like to find out more about private labeling, contact us.

If you have questions about this update, feel free to contact us to discuss your specific situation.

Aluminum Coil Cleaning Best Practices

Goodman recently issued Service Bulletin SA-026 to address inquiries related to recommended cleaning practice for aluminum evaporator coils.

Best cleaning practice is to simply flush the coil with water. Alternately, you can use an approved, non-chlorine cleaner (such as Nu-Calgon – EVAP-Green – available at HVAC Distributors).

From Goodman:

After testing various coil cleaners and drain pan tablets, it has been determined that any cleaner or drain pan tablets containing chlorine can be harmful to the aluminum tube evaporator coils in our equipment. Constant exposure to the chlorine in the cleaner and chlorine outgassing from the pan tabs can cause tube corrosion and/or fin pack corrosion causing premature aluminum evaporator coil failures.

Example of coil damage caused by chlorine exposure
Example of coil damage caused by chlorine exposure

The recommended cleaning method for both copper and aluminum tube evaporator coils is to simply flush the coil with water. Alternately, you can use an approved cleaning agent to clean the coils (Nu-Calgon EVAP-Green or Sunshine Makers Extreme Aircraft & Precision Cleaner). Ensure that coils are rinsed well after the use of any chemical cleaners.

This information is included in Installation Manuals and as a label on evaporator coils and air handlers, starting late February 2015.

HVAC Distributors stocks Nu-Calgon – EVAP-Green – Part/Product #4191-08, which is one of the approved chemical cleaners for aluminum coils. Ask for it at our branches if you are using cleaners for your Spring Tune Ups.

E-Coated Air Coils

ClimateMaster has issued technical service bulletin TBJ017 related to all water to air units with E-Coated (black) refrigerant air coils.

From ClimateMaster:

PRODUCT: All water to air units with E-Coated (black) refrigerant air coils

AFFECTED RANGE: All units with E-Coated air coils.

ISSUE: ClimateMaster has become aware of E-Coated refrigerant air coils being replaced suspected of refrigerant leaks that are not actually leaking. The decision made in the field to replace the coil is based on the streaking on the face of the fin pack that appears to be refrigerant oil. The picture below shows an example of what this streaking looks like:

TBJ017

This streaking is not an indication of a refrigerant leak and there is no adverse functional or operational effect to the coil or heat pump.

SOLUTION: Signs of oil, or what may look like oil, may be an indication of a refrigerant leak but should not be used as the sole determination of the leak location. When performing refrigerant leak investigations, always confirm the refrigerant leak with a refrigerant leak detector.

HVAC Distributors’ customers with questions or concerns can contact HVAC Technical Service.