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.

Flashshield Arc-Resistant CSST Available at HVAC Distributors

gastite flashshield

One of the biggest concerns with installing gas furnaces is ensuring that the gas connections are not a fire hazard.  Two common causes of potential fires are lightning strikes (common within the HVAC footprint in Maryland and Pennsylvania) and power surges.

HVAC Distributors stocks Flashshield™ because it offers the highest level of protection against both indirect lightning strikes and electrical system fault current arcs up to 600V. This means that when you use Flashshield, as a certified Gastite installer, you can be confident that you’re providing the highest level of safety for your customers.

How does it work?

Why Flashshield?

  • It saves time. It installs in about 1/3 the time of rigid pipe.
  • It reduces job cost. It reduces gas fittings required by about 75%.
  • It is the safest product you can provide your homeowners. It’s listed to ANSI LC1 and ICC-ES PMG LC 1027 standards, and its multi-layer insulation protects from corrosive elements that may also weaken pipes and cause fire hazards.

Flashshield is available at all HVAC branches and through Web Order Entry. As with most gas piping, it requires certification to purchase. If you need the certification, Gastite has an on-demand online certification course that you can take to be certified within 30 minutes.

2017 Christmas & New Year’s Hours

All HVAC Distributors locations will be closed on Monday, December 25, and Monday, January 1, in observance of the Christmas and New Year holidays.

There will be no scheduled deliveries on these days. However, on-call emergency ordering service will be available for all branches by calling your local branch or 800.228.4822 and following the auto-attendant prompts.

Web Order Entry orders placed over the holiday weekends and on Monday, December 25, or Monday, January 1, will be processed when HVAC Distributors re-opens for business the following Tuesday.

Thank you for being our customers and enjoy your holiday.

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.

 

Updates to Lochinvar After-Hours Tech Support

Lochinvar has announced new hours for its Technical Service Hotline:

After Hours Support: 5 PM EST – 8 PM EST (Monday – Friday)
Emergency Support: 9 AM EST – 5 PM EST (Saturday – Sunday)
Holiday Support: 9 AM EST – 5 PM EST (Closed Thanksgiving Day & Christmas Day)
Hotline: 1.800.722.2101

This support is in addition to the support you receive as an HVAC Distributors customer.

HVAC Distributors’ Tech Service Department is available Monday – Friday from 8 AM – 5 PM EST by calling 1.800.228.4822 x 5.

Our Tech Service Department provides technical support on all of the products that we sell, which saves you time from calling individual manufacturer tech lines.

2017 Thanksgiving Holiday Hours

All HVAC Distributors branches will be closed for the Thanksgiving holiday, Thursday, November 23.

All HVAC Distributors branches will be closed on Friday, November 24, however, orders may be placed from 7am – 12pm through Web Order Entry or by calling our Inside Sales team at 800.228.4822 x3.  All in-stock orders will be processed for Monday delivery.

On-call emergency ordering service is available for all branches by calling your local branch or 800.228.4822 and following the auto-attendant prompts.

Warranty, Marketing, Finance, Applications Support and Technical Service Departments will be closed and will respond to inquiries on Monday, November 27.

Delivery service will resume on Monday, November 27.

Thank you for being our customers and enjoy your holiday.