ASHRAE Journal - December 2019 - 31

TECHNICAL FEATURE

failure, which can often include complete refrigerant
loss. Unfortunately, from an owner's standpoint, it
is difﬁcult to track where the HVAC system goes after
removal. Some are destroyed, while others are ﬁxed
and sold in the used market. As mentioned in the
previous section, a signiﬁcant number of units end
up at the landﬁll. Noncritical and critical commercial
systems will sometimes be involved with a proactive
replacement program to reduce emergency maintenance costs and downtime for the business, especially
for large companies with thousands of HVAC systems.10
However, noncritical equipment, that does not affect
the commercial business often fails because a catastrophic failure has rendered the equipment beyond
repair.
Reclaim of Refrigerant. Residential equipment owners have little control or oversight of the removal of
refrigerant. They typically pay an HVAC service technician through a service call or at a landﬁll/recycling
center to handle the refrigerant removal. It is then up to
the service technician to reuse or destroy the reclaimed

refrigerant. Commercial applications typically use
a service contract to handle the reclaim of refrigerant. Both systems at this point are legally allowed to
enter landﬁlls. Unreclaimed refrigerant, or refrigerant
lost as a result of a leak, is eventually emitted into the
atmosphere.
Separation of Components. The HVAC system can
be separated into valuable and nonvaluable resources.
This can be done by the HVAC service technician, a third
party, or even by landﬁlls. The EPA estimates that 58% of
major appliances are recycled at the landﬁll.3

Best Practices for Retiring HVAC Systems
How to Reduce Environmental Impact, Meet Regulations, and Earn Money
Residential system retirement: The average residential
air-conditioner life changes depending on several factors. The ideal system lasts 20 years; however, coastal
and humid areas see air-conditioner life spans from 8 to
14 years.11 The average life span of a refrigerator ranges
from 7 to 14 years.12 Homeowners should consider
replacement if near the end of the expected life span.

Desiccant and Energy Recovery wheels
available in standard and custom sizes.
Call or email us for a quote today!

225 -753 -1700
1700
info@rotorsource.com | www.rotorsource.com

D E C E M B E R 2 0 19

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ASHRAE JOURNAL

31

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ASHRAE Journal - December 2019

Table of Contents for the Digital Edition of ASHRAE Journal - December 2019

Contents
ASHRAE Journal - December 2019 - Intro
ASHRAE Journal - December 2019 - CT1
ASHRAE Journal - December 2019 - CT2
ASHRAE Journal - December 2019 - Cover1
ASHRAE Journal - December 2019 - Cover2
ASHRAE Journal - December 2019 - 1
ASHRAE Journal - December 2019 - Contents
ASHRAE Journal - December 2019 - 3
ASHRAE Journal - December 2019 - 4
ASHRAE Journal - December 2019 - 5
ASHRAE Journal - December 2019 - 6
ASHRAE Journal - December 2019 - 7
ASHRAE Journal - December 2019 - 8
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ASHRAE Journal - December 2019 - 10
ASHRAE Journal - December 2019 - 11
ASHRAE Journal - December 2019 - 12
ASHRAE Journal - December 2019 - 13
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ASHRAE Journal - December 2019 - 31
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ASHRAE Journal - December 2019 - Cover3
ASHRAE Journal - December 2019 - Cover4
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