If you want affordable, reliable, healthy, efficient comfort - make sure you maintain your air conditioning

1. HVAC
-­‐
If
it’s
not
clean
it’s
not
green
HVAC
maintenance
in
the
built
environment
15th Sept 2009
Phil Wilkinson
Chief executive officer
AIRAH

2. The
ice
breaker

3. The
ice
breaker

4. Today’s
talk
• What is AIRAH?
• Why HVAC?
• Benefits of maintenance
• What’s all this about
DA19?
• Drivers
• Summary

5.
What
is
AIRAH?
• Australian
Ins>tute
of
Refrigera>on
Air
Condi>oning
and
Hea>ng
• Over
90
years
old
• Specialist
organisa>on
for
air
condi>oning,
refrigera>on,
hea>ng
and
ven>la>on
professionals
• 2500
members
• Na>onal
• 25,000
publica>ons
monthly
• Whole
of
supply
chain
– Researchers
– Design
engineers
– Installers/contractors
– Building
engineers
– Maintainers
– Equipment
suppliers

6.
AIRAH’s
aims…
• Claim
the
sustainability
space
• Close
the
skills
gap
• Engage
and
grow
membership
• Inform
regula>on
and
policy
decisions

7. Why
maintain?
• Safe
and
energy
/
water
efficient
opera>on
of
buildings
• Occupant
comfort
–
happy
tenants
• Systems
operate
as
they
were
designed
• Reduced
running
costs
• Reliability

8. In
the
beginning

9. The HVAC&R industry today

10. HVAC&R Industry
What we do…

11. From the cities to the outback…

12. We transform the way we work

13. The way we live and play

14. We help feed the world

15. We help keep people connected

16. We save lives everyday (Ok maybe that is bit of an exaggeration)

17. Fundamentals
s>ll
the
same…

18. Then
there
are
the
tenants…

19. Complaints

20. Too
hot

21. Too
cold

22. Too
draughty

23. Too
noisy

24. Who
likes
high
bills?

25. Is
reliability
an
issue?

26. Ever
wondered
what’s
really
going
on
in
your
HVAC
system?

27. Just
what
is
going
on
in
the
plant
room?

28. Cold
hard
facts
Electricity
use
-­‐
59,100
GWh
(>22%)

29. Cold
hard
facts
Greenhouse
emissions
(direct
and
indirect)
-­‐
64.5
Mt
CO2e
(11.7%)

30. Cold
hard
facts
Stock
of
equipment
-­‐
45
million
pieces

31. Cold
hard
facts
Employment
-­‐
173,000
(1.5%)

32. What
about
HVAC
in
our
buildings?

33. HVAC systems are responsible for:
• 50%± energy usage in buildings

34. HVAC systems are responsible for:
• typically over 50% of potential
improvement

35. HVAC systems are responsible for:
• over 50% of risk to retaining energy
efficiency

36. HVAC systems are responsible for:
• over 50% of maximum demand / peak
load

37. Cooling towers - billions of litres
of potable water per annum.

38. Benefits
of
maintenance

39. Benefits
of
maintenance

40. Benefits
of
maintenance

41. Benefits
of
maintenance

42. Benefits
of
maintenance

43. Benefits
of
maintenance

44. Benefits
of
maintenance

45. HVAC
Maintenance
–
where
do
I
start?

46. DA19
–
HVAC
and
R
Maintenance

47. DA19
–
what's
that?
comprehensive
informa>on
on
the
maintenance
and
maintenance
management
of
HVAC&R
building
services
and
systems
discusses
how
maintenance
is
planned,
supported,
specified,
contracted,
performed,
monitored,
recorded
and
managed

48. DA19
HVAC&R
Maintenance
new
focus:
• assist
those
responsible
for
purchasing
and
managing
maintenance
• maintenance
roles
and
responsibili>es
• maintenance
planning,
maintenance
management
• maintenance
monitoring,
review
and
assessment

49. focuses
on
the
role
maintenance
plays
in
reducing
the
environmental
impacts
of
buildings
or
processes:
• reducing
energy
use
• conserving
water
• managing
refrigerants
• water
treatment
chemicals
DA19
HVAC&R
Maintenance

50. ...all
the
hard
work
is
done
for
you..
Comprehensive schedules
for all HVAC&R plant:
Word version comes with
the manual for you to tailor
the schedules to your
requirements.

51. Other
drivers
for
maintenance

52. who
says
I
have
to
maintain?

53. Building Code of Australia
Volume 1
Maintenance and refrigerant
handling
Australia and New Zealand Refrigerant
Handling Code of Practice (2007)
State and territory
essential services requirements
Fire and smoke AS 1851
Cooling towers - Legionella AS/NZS 3666

54. Commercial building disclosure
.....another
(indirect)
driver?

55. Who
else
is
talking
about
maintenance?

56. Commonwealth
Government

57. State
Government
NSW
Department
of
Health

58. Local
Council
City
of
Melbourne

59. Industry Associations
Royal Institute of Chartered
Surveyors

60. Industry
Associa=ons
Green
Building
Council
of
Australia

61. Industry
Associa=ons
Green
Building
Council
of
Australia

62. Industry
Associa=ons
Property
Council
of
Australia
-­‐
www.yourbuilding.org

63. Educa=on
ins=tu=ons
Ins>tute
for
Sustainable
Futures
-­‐
UTS

64. Health
care
ins=tu=ons
Maintenance
standards
for
cri>cal
areas
in
Victorian
Health
facili>es

65. Common
problems
you
could
be
having
right
now..

66. Common
problems
you
could
be
having
right
now..
• Simultaneous
hea>ng
and
cooling
• Ligh>ng
and
HVAC
running
when
not
required
• Controls
needing
to
be
retuned
• Cri>cal
control
sensors
out
of
calibra>on
• Due
to
reac>ve
maintenance
(breakdown)-­‐
air
con
systems
could
be
opera>ng
with
incomplete
refrigerant
charge-­‐
inefficient.
• Heat
exchanger
coils
could
be
coated
with
dust
or
grime.
At
least
an
annual
clean
up
is
beneficial.
Every
1C
rise
in
condensing
temperature
drops
efficiency
by
3%.
Same
for
poorly
defrosted
evaporators.
• Leaky
door
seals
in
cool
rooms/freezers
lead
to
air
infiltra>on
and
higher
defros>ng
energy
requirements.

67. Common
problems
you
could
be
having
right
now..
• Poor
sekng
of
defrost
cycles
can
lead
to
excessive
opera>on
of
electric
hea>ng
elements
-­‐
major
waste
of
energy.
• Poor
controls-­‐
quite
omen
controllers
do
not
have
the
capability
to
recognise
local
public
holidays.
• On
larger
systems-­‐
lack
of
economy
cycles,
too
much
outside
air,
poorly
insulated/leaking
ducts
and
pipes,
boilers
with
no
combus>on
analysis
carried
out
for
long
periods.
• Air
handling
units
could
benefit
from
the
conversion
of
constant
volume
systems
to
VAV
through
the
installa>on
of
VFD.s

68. What
about
the
technician...
• Between
2009-­‐13,
electricity
prices
went
up
by
80%
and
gas
by
50%
to
smaller
businesses.
HVACR
service
technicians
can
add
value
by
being
aware
of
this
burden
on
clients
and
considering
issues
beyond
simply
fixing
equipment
that
is
broken.
• Be
aware
of
poten>al
wastage
and
provide
advice
on
beoer
controls,
relaxed
set-­‐points,
door
seals,
air
curtains,
freezer
covers
overnight,
solar
screens
and
blinds,
replacing
old
split
systems
with
modern
inverter
controlled
systems
which
have
much
higher
COPs.

69. Don't
be
shy
–
make
some
noise
about
maintenance....

70. ....before
your
plant
does...
• XXXINSERT
VID

71. So
who
is
going
to
think
more
about
maintenance
of
their
HVAC?

72. Common
problems
you
could
be
having
right
now..
• Simultaneous
hea>ng
and
cooling
• Ligh>ng
and
HVAC
running
when
not
required
• Controls
needing
to
be
retuned
• Cri>cal
control
sensors
out
of
calibra>on
• Due
to
reac>ve
maintenance
(breakdown)-­‐
air
con
systems
could
be
opera>ng
with
incomplete
refrigerant
charge-­‐
inefficient.
• Heat
exchanger
coils
could
be
coated
with
dust
or
grime.
At
least
an
annual
clean
up
is
beneficial.
Every
1C
rise
in
condensing
temperature
drops
efficiency
by
3%.
Same
for
poorly
defrosted
evaporators.
• Leaky
door
seals
in
cool
rooms/freezers
lead
to
air
infiltra>on
and
higher
defros>ng
energy
requirements.
•
Poor setting of defrost cycles can lead to excessive operation of electric heating
elements - major waste of energy.
Poor controls- quite often controllers do not have the capability to recognise local public

73. Common
problems
you
could
be
having
right
now..
• Poor
sekng
of
defrost
cycles
can
lead
to
excessive
opera>on
of
electric
hea>ng
elements
-­‐
major
waste
of
energy.
• Poor
controls-­‐
quite
omen
controllers
do
not
have
the
capability
to
recognise
local
public
holidays.
• On
larger
systems-­‐
lack
of
economy
cycles,
too
much
outside
air,
poorly
insulated/leaking
ducts
and
pipes,
boilers
with
no
combus>on
analysis
carried
out
for
long
periods.
• Air
handling
units
could
benefit
from
the
conversion
of
constant
volume
systems
to
VAV
through
the
installa>on
of
VFD.s

74. What
about
the
technician...
• Between
2009-­‐13,
electricity
prices
went
up
by
80%
and
gas
by
50%
to
smaller
businesses.
HVACR
service
technicians
can
add
value
by
being
aware
of
this
burden
on
clients
and
considering
issues
beyond
simply
fixing
equipment
that
is
broken.
• Be
aware
of
poten>al
wastage
and
provide
advice
on
beoer
controls,
relaxed
set-­‐points,
door
seals,
air
curtains,
freezer
covers
overnight,
solar
screens
and
blinds,
replacing
old
split
systems
with
modern
inverter
controlled
systems
which
have
much
higher
COPs.

75. Do
not
join
the
AIRAH
hall
of
shame...

78. Indoor
air
quality?

85. Poor
air
flow?

93. True Aussie ingenuity –
duct made from beer
cartons

104. Insula>on
tape

108. Was
it
ever
maintainable?

113. Modern
air
distribu>on?

115. Do
the
right
thing....

119. Quick
recipe
for
green
success...

120. Operation and maintenance manuals

121. Up to date set of installed drawings

122. Find yourself an AIRAH member

124. .
Summary
• Multiple environmental and financial benefits
• The law
• Financial savings
• Tenant satisfaction
• Stay out of the hall of shame
• Find an AIRAH member today and ask them
about using DA19 to green your HVAC system.

125. Thank
you
Any
ques>ons?
Phil
Wilkinson
Chief
execu=ve
officer
AIRAH
phil@airah.org.au
www.airah.org.au