AW 200 User Manual

In
most
applications
fresh
tap
water
is
used
for
cooling.
Free
flowing{ap
water
requirements
for
the
dynamometer
are
based
on
the
ineoming
water
temperatur
e
md,
imiximum
rut",
discharge
temperature
of 1400F.
The
chart
provided
shows
the
frish
water
requirements
based
on
incoming
temperature
versus
increments
of 100
H.p.
Enclosed
systems
require
higher
volumes
of
water
flow
to
decrease
the
amount
of temperature
rise
between
the
inlet
and
outlet.
This
is
very
important
on
systems
which
have
no
supplemental
cooling
and
only
rely
on
the
holding
tank
as
ahea|sink
or storage
systems
without
some
source
for
cooling
the
hot
water
and
will
suffer
short
tests
and
more
maintenanee
on
the-
dynamometer.
SECTION
38
WATER
REQUIREMENTS
FOR
COI\TII{UOUS
TESTING
Incoming
'Water
Temperature
0F
-Gallons
Per
Minute
400
5
10
15
20
25
30
35
40
45
500
6
12
18
24
30
36
42
4B
54
600
a
14
21
28
35
42
49
56
63
700
8
16
24
32
40
48
56
64
72
900
9
18
27
36
45
54
63 72
81
900
10
20
30 40
50
60
70
80
90
't000
13
26
39
52
65
78
91
104
117
1
100
17
34
51
6B
85
142
119
136
153
Horsepower
100
204
300
400
500
600
700
800
900
: 60'F
Exawple:
water
requires
7
gpm
to test
100
H.p.
Gravity
feed
systems
are
not
recommended
due io
fo* pressure
creatid
by
them,
reducing
the
required
volume
for
cooling
several
areas
of caution
should
be
used
when plumbing
the
system.
1.
Retum
lines
from
the
dynamometer
back
to
the
cooling
system
or drain
must
be
of the
correct
size
as not to
create
more
than
8-10
P.S.I
of back pressure
on
the
dynamometer's
tank.
NOTE:
The
rotor
on
the
dynamometer
will not pump
water.
Water
must
be forced
through
the
system
for proper
cooling.
It
is
intended
to
create
a
pressure
drop
from
the
incoming
watJr
30-
60 P.S.I
down
to a
maximum
of
8-19
lbs
on
the
outlet.
Pressures
greater
than
8-10
lbs.
on
the
dynamometer
tank
will
reduce
water
seal
life.

AW 200 Specifications

General

Brand	AW
Model	200
Category	Measuring Instruments
Language	English