Circuit Breaker Sizing on HKSC10 and Smaller Heat Kits

Goodman released the following bulletin, G-GN-OT-1494, regarding circuit breaker sizing on heat kits:

Circuit breakers furnished with the heat kits of 10kw and less are for safety disconnect purposes only and are not supplied to be used for circuit protection. The 60 amp breaker has been tested and approved by ETL to be used with the HKSC10 and smaller heat kits. The breaker is sized for 208/230V operation and approved by ETL for use with both voltages.

Heat Kits are shipped with label indicating “CIRCUIT BREAKER IS NOT INTENDED FOR BRANCH CIRCUIT PROTECTION. IT SERVES AS A DISCONNECT ONLY.”

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At installation of the heater, this label should be affixed to the front of the indoor unit.

Note that the circuit breaker for the air handler branch circuit protection must be properly sized according to the MOP value. Please reference the product specification sheet for these values.

Paragraph 90.7.of the NEC states the following:
(It is the intent of this Code that factory-installed internal wiring or the construction of equipment need not be inspected at the time of installation of the equipment, except to detect alterations or damage, if the equipment has been listed by a qualified electrical testing laboratory that is recognized as having the facilities described in the preceding paragraph and that requires suitability for installation in accordance with this Code.)

If you have questions about this bulletin, HVAC Distributors customers can reach out to our Technical Service department at 800.228.4822 x5.

Changes for 2018 – Convenient Rebates, Rooftop Standards

Convenient Rebates

Goodman Manufacturing announced updates to its homeowner-oriented web sites, www.goodmanmfg.com and www.amana-hac.com. The sites now integrates rebates available based on a homeowner’s location into its web site layout. As customers (or you) search for products, rebates available in the local area will also populate.

Region-specific rebates can be searched on the sites by selecting Rebate Center under the Resources menu on each site.

Rooftop Energy Efficiency Standards are Changing

At the beginning of this year, 3 to 5 ton 13 SEER Packaged Units were discontinued, per Department of Energy regulation.

Beginning January 1, 2018, the performance measurement metric for 6 – 25 ton packaged units is being changed from EER to IEER (Integrated Energy Efficiency Ratio). This change is expected to improve the energy efficiency of rooftop equipment by about 10%. Required minimum IEER are noted in the table below.

Updated IEER Ratings for Equipment Manufactured On/After January 1, 2018

Unit Min IEER
Cooling Only 6-10 T 12.9
12.5-20 T 12.4
25T 11.6
Gas/ Electric 6-10 T 12.7
12.5-20 T 12.2
25T 11.4
Heat Pump 6-10 T 12.2 (3.3 COP)
12.5-20 T 11.6 (3.2 COP)
25T 10.6 (3.2 COP)

What does this mean for your customers? According to an article in ACHR News, “a typical building owner [would save] $4,200-$10,100 over the life of a single rooftop air conditioner. For larger commercial buildings, the savings are significant.”

What does this mean for you? As stock of older rooftops runs out, it will be replaced by units that meet the now higher efficiency requirements. To improve IEER, which is a weighted average of four load points, manufacturers adjust how the equipment performs at 75% load and 50% load. This can be done by increasing the physical size of the system or, as our manufacturer partners are doing, by changing compressors and drives to provide more variable performance.

You are still able to purchase and install rooftops that meet current EER/IEER standards. However, these models are not allowed to be manufactured after January 1, 2018, so when we sell out of existing inventory, it is gone for good.

If you are an HVAC Distributors/HVAC Commercial Solutions customer with a current committed project with an extended lead time, please reach out to your Account Manager about product availability.

If you are an HVAC Distributors/HVAC Commercial Solutions customer interested in learning more about how our manufacturer partners are improving the energy efficiency of their rooftop products, or in how best to explain these changes to your customers, reach out to your Account Manager.

 

Goodman Expands 96% Furnace Offering

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Goodman has expanded its furnace offerings by launching the new GMEC96 and ACEC96 model furnaces.  These new options are the downflow/horizontal version of the popular GMEC96 and AMEC96 furnace lines.

The new models feature:

    • 96% AFUE
    • Energy-efficient, multi-speed ECM motor for a convenient match to a wide range of coil-condenser combinations
    • Two-stage gas valve for quiet, economical heating
    • Heavy-duty, aluminized-steel tubular heat exchanger

Amana Models:

Product ID Model # Heating Cooling/Airflow Cabinet Width
460156 ACEC960403BN 40 MBH 3 Ton / 900 cfm 17-1/2” (B)
460157 ACEC960603BN 60 MBH 3 Ton / 900 cfm 17-1/2” (B)
460158 ACEC960803BN 80 MBH 3 Ton / 900 cfm 17-1/2” (B)
460159 ACEC961005CN 100 MBH 5 Ton / 1500 cfm 21” (C)

Goodman Models:

Product ID Model # Heating Cooling/Airflow Cabinet Width
460160 GCEC960403BN 40 MBH 3 Ton / 900 cfm 17-1/2” (B)
460161 GCEC960603BN 60 MBH 3 Ton / 900 cfm 17-1/2” (B)
460162 GCEC960803BN 80 MBH 3 Ton / 900 cfm 17-1/2” (B)
460163 GCEC961005CN 100 MBH 5 Ton / 1500 cfm 21” (C)

These furnaces can be ordered at any of our HVAC Distributors locations, by phone or through Web Order Entry.

Defrost Timer Change on AVZC18/20 SEER Inverter Heat Pump Units

Goodman released Service Bulletin SR-072, regarding a software change on AVZC18 and AVZC20 Inverter Heat Pump units:

This bulletin is to inform you of a software change made to the Inverter Heat Pump models listed above. For units with a serial number prefix of 1706 and later the factory default setting for the defrost interval has been changed from 30 minutes to 120 minutes.

The defrost time interval can still be field adjustable to 30, 60, 90 or 120 minutes between defrost cycles to suit weather conditions and unit performance. This setting can be adjusted in the Comfortnet User Menu of the CTK04AE thermostat by selecting “Inverter” – “Heat Set Up” – “Defrost Interval”. When in this Sub Menu select 30, 60, 90,120 minutes setting.

NOTE: Oil Return Mode: In order to properly return the oil to the compressor, compressor speed may periodically adjust to assist oil circulation. These Inverter units utilize an oil return mode to properly return oil to the compressor which functions similar to a defrost cycle and may create the appearance of the unit having unnecessary defrosts.

If you have questions about this bulletin, HVAC Distributors customers can reach out to our Technical Service department at 800.228.4822 x5.

New “D” Cabinet Width on Goodman GMVC96 and Amana AMVC96 Furnaces

Goodman Manufacturing has expanded its furnace offering by adding a D-width (24-1/2”) to the popular GMVC96 and AMVC96 furnaces in the 100MBH, 5 ton size.  Previously, these models have only been offered with the C-width (21″) cabinet.

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The D-width cabinet allows a flush fit of the coil and furnace, which provides a cleaner installed appearance. C-width cabinet installations require 3.5″ of coil cabinet overhang in relation to the furnace (1.75″ each side).

These furnaces are available at any of our HVAC Distributors locations and can be ordered by phone or through Web Order Entry.

Amana® Products Now Have Premium Product Packaging

To better differentiate its Amana brand, Goodman Manufacturing has introduced premium product packaging on all Amana-brand high efficiency equipment:
condensing units, heat pumps, furnaces, and air handlers. The packaging enhancements are designed to better protect products in transit and provide homeowners with a premium experience upon delivery of their new unit.

New packaging includes a larger skid, full unit coverage, and a tighter fitting lid.

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Premium Packaging (left) vs. Standard Packaging (right)
  • Larger skid provides margin on each side
    of the unit to help reduce bump damage
  • Sleeve provides full unit coverage and protection
  • Tighter fitting lid to prevent slippage and provide enhanced protection

 

The new premium packaging also clearly shows the American Pride logo  (below) for homeowners to see.

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Goodman Manufacturing, in conjunction with The ACHR News, conducted a survey of contractors that showed, when asked, 75% of homeowners prefer a product made or assembled in the United States.

HVAC Distributors Amana dealers will start to see delivery of units with the new packaging, effective immediately.

ComfortNet CTK04 Now Includes Voice Control

Consumers are increasingly looking for ways to connect their lives and homes.

Goodman has recognized this trend and has updated the ComfortNet CTK04 to include voice controls. When you install a CTK04 and connect it to the Honeywell Residential Internet Gateway, your homeowner can use many of today’s popular home electronic assistants to control their Goodman or Amana brand  ComfortNet system.

Some of the home electronic assistants  and apps that are compatible with the new CTK04 include:

  • 518738-google-home-vs-amazon-echoAmazon Echo is a wireless speaker that uses Alexa Voice Assistant to control devices in your home.
  • Google Home is a voice-activated speaker powered by the Google Assistant.
  • The Honeywell Total Connect Comfort app allows you to control the CTK04 directly through your smartphone and/or tablet.

This new voice control options is another way the ComfortNet CTK04 control separates itself from the competition by integrating with some of the biggest smart home companies today and making a great product even better for your valued customers.

ComfortNet CTK04 thermostats, Honeywell Residential Internet Gateway and Google Home devices are in stock and can be ordered at any of our HVAC Distributors locations, by phone or through Web Order Entry.