Refrigeration & Air Conditioning Technology, 8e - xv

Preface

xv

how To use This TexT aNd
supplemeNTary maTerials
This text may be used as a classroom text, as a learning resource for an individual student,
as a reference text for technicians on the job, or as a homeowner's guide. An instructor
may want to present the unit objectives, briefly discuss the topics included, and assign the
unit to be read. The instructor then may want to discuss the material with students. This
can be followed by students completing the review questions, which can later be reviewed in
class. The lecture outline provided in the45Instructor's Manual may be utilized in this process.
Lab assignments may be made at this time, followed by the students completing the lab
review questions.
on it. The
e acting
The instructor
resource
may
be used to access a computerized test bank for end-ofe forces arDVD
id
ts
ou
will now
ts
no
e
en
becaus questions,
®
vapor cont
rium review
l
ia
rt
teaching
tips,
PowerPoint
presentations, and more.
and
pa
d,
in equilibunit
ial liqui
mperature

8F)

its part
°F. The te
cylinder and
rature of 75 132  psig, Figure 3.15.
pe
m
te
om
of
tube at the ro
s a pressure
ed to as a sa
art indicate
is also referr
for
t
s
ar
re
pressure ch
ch
tu
e
ra
ur
ture/press
tion tempe
ra
ra
pe
tu
m
sa
te
ns
he
ai
T
cont
t because it
into a
ration char
sures.
es
pr
on
2 is moved
ti
ra
tu
linder of R-2
rature
cy
different sa
pe
e
m
m
te
sa
e
at th
ach the room then reach
re
Suppose th
to
ed
w
r will
er and allo
. The cylinde
off to
walk-in cool
in equilibrium use while it is cooling
ta
at
d
an
ca
oling
be
co
of 35°F
g
e
si
ng to th
re of 61.5 p
der is reacti
ops.
lin
dr
cy
a new pressu
e
re
th
su
es
de
por insi
efore, the pr
er
the
th
;
to
ng
35°F, the va
in
si
en
°F) back
rtially cond
uid
(now at 35
r
liq
effect by pa
e
de
th
lin
,
cy
the
to warm up htly and
it
w
If we move
lo
al
iling slig
(75°F) and
effect by bo
s to
warmer room
e warming
th
lly increaseObjectives
ua
to
ad
ts
gr
ac
re
re
it
su
es
de
si
pr
in
the
por. Thus,
Objectives are listed at the beginning of each unit.
°F.
creating va
a room at
ponds to 75
es
rr
co
ch
75°F) into
hi
w
Thegeobjective statements have been stated clearly
at
,
ig
ow
ps
(n
2 
r
13
rature chan simply to give students direction.
the cylinde
to the tempe liquidand
ds
If we move
boils
on
sp
re
por. As the
liquid again
ording
100°F, the
ting more va
cc
ea
(a
cr
s
d
se
an
ea
iling
ly incr
by slightly bo
essure steadi
nds to the
vapor, the pr chart) until it correspo
es
ak
m
d
an
e
ts of the
ur
en
ss
nt
re
co
/p
rature
until the
s
ue
in
100°F,
nt
to the tempe
co
Safety
Checklists
ponding to
rature. This
6 psig, corres
19
liquid tempe
,
re
su
es
Checklist
at the
h the prA Safety Fi
re 3.18.is presented
in beginning of each unit, when
cylinder reac
e increasethe
.17, and guimmediately
following
Objectives. This checklist
e of th
gure 3applicable,
us
Fi
ca
6,
be
.1
 3
d
te
re
essure
Figu
pr
or
as genera the importance
ap
w
V
.
at
re
emphasizes
of
safety
and
is included in units where
th
su
r
es
po
r pr
The va
ny time satu
ed to as vapo
d. Adiscussed.
"hands-on"
activities
are
referr
ui
is
liq
re
d
te
tu
ra
ra
ra satu
tempe
sure is gene the text. In addition to the
Safety
is emphasized
re exerted on
por presthroughout
is
together, va
is the pressu
e
ar
ns, andofthmost
d
io
ui
ct
liq
Safety
Checklist
at
the
beginning
units, safety precautions
re
and
lly in all di
ion
ua
at
er
eq
rated vapor
ig
ts
fr
ac
re
a
re
and
techniques
are
highlighted
throughout.
It would be impossible
su
on
es
s
pr
ad
uge re
uid/
ated. Vapor
e liq
essure ga
a safety
precaution
for
everye conceivable circumstance
ture of th
thetoprinclude
ra
t
pe
ha
m
w
te
is
e
th
s th
action
em. Aarise,
systmay
but
anreattempt
hasAsbeenr made to be as thorough as
increases.
itioningthat
essu
pr
po
por overall
va
va
or air-cond
s,
s,
se
se
ea
ea
cr
possible.
The
message
is
to
work
safely whether in a school
cr
re in
ixture de
vapor mixtu
d/vapor mor
ui
liq
e
shop,
laboratory,
on
the
job
and
to
use
common sense.
th
of
s
temperature
e chart show
ur
s.
ss
se
re
ea
/p
cr
re
de
tu
mpera
essure,
pressure
y of the te
ospheric pr
Further stud sure is lowered to atm m the following
the pres
Do not perfor
the
that when
°F.
escape into
about 241
at
ils
intentionally
bo
re
to
2
he
t
es
R-2
an
pl
er
am
ig
fr
ex
lowing re
tion these
en
m
e
W
!
Recovery/Recycling/Reclaiming/Retrofitting
w
exercises-al
e la
is against th
ly
ow
sl
atmosphere
.
ly
ed
on
en
were op
Discussions relating to recovery, recycling, reclaiming,
n purposes
e, the
der of R-22
for illustratio
on the cylin
e atmospher
e
th
retrofitting, or other environmental issues are highlighted
lv
to
va
in
e
th
in
pe
If
aining
to esca
in blue throughout the text. In addition, one complete
e liquid rem
por allowed
th
va
e
e
y
us
th
ca
an
d
r
ld
an
essure wou
re. Wheneve
tu
pr
unit on refrigerant management is included-Unit 9,
r
ra
pe
po
m
va
a
te
loss of
causes
drop in
"Refrigerant and Oil Chemistry and Management-
to boil and
ocess, which
r
pr
de
e
th
lin
liq
cy
in
2
e
th
the R-2
is absorbed
om
fr
at
Recovery, Recycling, Reclaiming, and Retrofitting."
e
he
m
,
ca
ils
se
would
liquid bo
in this ca
the cylinder
in
ct. The heat
fe
re
ef
su
g
ld
es
in
pr
ou
ol
co
the
linder w
linder. Soon
, and the cy
e
9. ●✔✔
uid in the cy
eric pressure are assuming that th
ph
os
m
at
gh
. (We
°F
ou
en
41
be down to
e
2
rg
e
la
m
der is
and beco
The
e R-22 cylin
frost over
the top of th
at
e
lv
va
r
vapo

F e At U R e S o F t H e t e x t



Refrigeration & Air Conditioning Technology, 8e

Table of Contents for the Digital Edition of Refrigeration & Air Conditioning Technology, 8e

Contents
Refrigeration & Air Conditioning Technology, 8e - Cover1
Refrigeration & Air Conditioning Technology, 8e - Cover2
Refrigeration & Air Conditioning Technology, 8e - i
Refrigeration & Air Conditioning Technology, 8e - ii
Refrigeration & Air Conditioning Technology, 8e - iii
Refrigeration & Air Conditioning Technology, 8e - Contents
Refrigeration & Air Conditioning Technology, 8e - v
Refrigeration & Air Conditioning Technology, 8e - vi
Refrigeration & Air Conditioning Technology, 8e - vii
Refrigeration & Air Conditioning Technology, 8e - viii
Refrigeration & Air Conditioning Technology, 8e - ix
Refrigeration & Air Conditioning Technology, 8e - x
Refrigeration & Air Conditioning Technology, 8e - xi
Refrigeration & Air Conditioning Technology, 8e - xii
Refrigeration & Air Conditioning Technology, 8e - xiii
Refrigeration & Air Conditioning Technology, 8e - xiv
Refrigeration & Air Conditioning Technology, 8e - xv
Refrigeration & Air Conditioning Technology, 8e - xvi
Refrigeration & Air Conditioning Technology, 8e - xvii
Refrigeration & Air Conditioning Technology, 8e - xviii
Refrigeration & Air Conditioning Technology, 8e - xix
Refrigeration & Air Conditioning Technology, 8e - xx
Refrigeration & Air Conditioning Technology, 8e - xxi
Refrigeration & Air Conditioning Technology, 8e - xxii
Refrigeration & Air Conditioning Technology, 8e - xxiii
Refrigeration & Air Conditioning Technology, 8e - xxiv
Refrigeration & Air Conditioning Technology, 8e - 1
Refrigeration & Air Conditioning Technology, 8e - 2
Refrigeration & Air Conditioning Technology, 8e - 3
Refrigeration & Air Conditioning Technology, 8e - 4
Refrigeration & Air Conditioning Technology, 8e - 5
Refrigeration & Air Conditioning Technology, 8e - 6
Refrigeration & Air Conditioning Technology, 8e - 7
Refrigeration & Air Conditioning Technology, 8e - 8
Refrigeration & Air Conditioning Technology, 8e - 9
Refrigeration & Air Conditioning Technology, 8e - 10
Refrigeration & Air Conditioning Technology, 8e - 11
Refrigeration & Air Conditioning Technology, 8e - 12
Refrigeration & Air Conditioning Technology, 8e - 13
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Refrigeration & Air Conditioning Technology, 8e - 22
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Refrigeration & Air Conditioning Technology, 8e - 30
Refrigeration & Air Conditioning Technology, 8e - 31
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Refrigeration & Air Conditioning Technology, 8e - 38
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Refrigeration & Air Conditioning Technology, 8e - 40
Refrigeration & Air Conditioning Technology, 8e - 41
Refrigeration & Air Conditioning Technology, 8e - 42
Refrigeration & Air Conditioning Technology, 8e - 43
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Refrigeration & Air Conditioning Technology, 8e - 45
Refrigeration & Air Conditioning Technology, 8e - 46
Refrigeration & Air Conditioning Technology, 8e - 47
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Refrigeration & Air Conditioning Technology, 8e - 50
Refrigeration & Air Conditioning Technology, 8e - 51
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Refrigeration & Air Conditioning Technology, 8e - 53
Refrigeration & Air Conditioning Technology, 8e - 54
Refrigeration & Air Conditioning Technology, 8e - 55
Refrigeration & Air Conditioning Technology, 8e - 56
Refrigeration & Air Conditioning Technology, 8e - 57
Refrigeration & Air Conditioning Technology, 8e - 58
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Refrigeration & Air Conditioning Technology, 8e - 60
Refrigeration & Air Conditioning Technology, 8e - 61
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Refrigeration & Air Conditioning Technology, 8e - 63
Refrigeration & Air Conditioning Technology, 8e - 64
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Refrigeration & Air Conditioning Technology, 8e - 70
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Refrigeration & Air Conditioning Technology, 8e - 81
Refrigeration & Air Conditioning Technology, 8e - 82
Refrigeration & Air Conditioning Technology, 8e - 83
Refrigeration & Air Conditioning Technology, 8e - Cover4
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