How to Order
How to Calculate Outlet Air Temperature
HAW
22 14
04
Symbol
Rc
06
14
20
30
Accessory (Option)
F
With screw flange
Nil —
Symbol
Description
D With auto drain
Port size
1
2
Rc
3
4
Rc 1
1
2
Rc 2
3B JIS 10K FF flange
HAW2
Size Applicable model
HAW7
HAW22, 37
HAW55, 75
HAW110
Symbol
2
Applicable air compressor kW
2.2
7.5
Reciprocating type
15
22
37
55
75
7
22
37
55
75
110
Screw type
22
37
55
75
110
Basic size
Correction Factor by Cooling
Water Temperature
Air pressure 0.7 MPa
Correction
factor
HAW2
HAW7
HAW22
HAW37
HAW55
HAW75
HAW110
Model
200
300
400
500
1000
1500
2000
3300
4000
4000
5700
7000
35.5
36
36.5
33.5
36
38
33.5
36
36.5
33.5
35
36
50°C
38.5
40
42
36
40
45.5
36
40
42.5
36
40
41
70°C
41.5
43
45.5
37
43
49.5
37
43
45.5
37
42
43.5
100°C
—
—
—
—
—
—
37.5
47
51
38
44.5
48
180°C
Inlet air temperature
Conditions: • Air pressure 0.7 MPa, Cooling water temperature 30°C.
• Inlet air temperature 50°C is saturated air. At 70°C or more, it is humid air with dew point 67°C.
Air flow
(
l/min (ANR))
5
5
17
25
7000
8600
10000
34.5
36
37
38
40
42.5
40
44
46
43
49
54
36
10000
12000
14000
34.5
35.5
36
38
40
41.5
39.5
43
44.5
42
47
49.5
40
15000
18000
20000
34.5
35.5
36
39
40
42.5
41
43
45.5
45
48.5
52
45
Cooling water
(l/min)
Outlet air temperature can be calculated with
inlet air temperature, cooling water tempera-
ture and amount of air in the following proce-
dure.
(Example) Inlet air temperature: 100°C,
Cooling water temperature: 20°C, Cooling
water flow: 17 l/min
Air flow: 2000 l/min (ANR), Air pressure: 0.7
MPa, Model: HAW22-14
Outlet air temperature at above conditions
Use outlet air temperature of 37°C from
outlet air temperature table. At this time
correction factor line becomes .
To get correction factor of 1.3 use cooling
water temperature correction factor at
20°C.
To get outlet air temperature divide 37°C
from (1) by 1.3 from (2).
Outlet air temperature = 37 ÷ 1.3 =
28.5°C
Outlet Air Temperature
Caution on Design
1.
If the supply of coolant water is disrupted,
the system will overheat, creating a dan-
gerous situation. Therefore, make sure to
take safety measures against water failure.
2. An excess or insufficient flow of coolant
water can damage the heat exchanger
tube. Therefore, design within the rated
water flow range (refer to the model col-
umn).
Warning
Mounting
1. Install the unit horizontal with pipe line.
2. Make sure to correctly connect the com-
pressed air inlet/outlet and the coolant
water inlet/outlet.
3. Use union joints to connect the coolant
water pipes so that they can be easily re-
moved during maintenance.
4. Connect a drain pipe because a large
amount of drainage is created when the
compressed air is cooled.
The drain pipe must have a minimum pipe
bore of 10 mm, and a maximum length of
5 m (when installing an optional auto
drain).
Caution
Maintenance
1. Inspect the quality of the coolant water
and replace the circulating water on a reg-
ular basis. If the coolant water is cooled in
a cooling tower, it is susceptible to the ad-
hesion of water scale.
2. If there is a likelihood that the coolant wa-
ter will be frozen, drain the coolant water
to prevent damage. Also, drain the coolant
water when the equipment will not be
used for a long period of time.
3. If the cooling performance has been re-
duced, clean the inside of the coolant wa-
ter pipes. (Refer to the instruction manual
for details on the cleaning.)
Caution
1. Design the piping for coolant water and
compressed air with a bore that is greater
than the bore of the piping connections.
2. The quality of the coolant water to be
used must exceed the water quality that
has been specified by the Japan Refriger-
ation and Air Conditioning Industry Asso-
ciation. (Refer to the instruction manual.)
Poor quality coolant water damages the
heat exchanger and reduces perfor-
mance. Therefore, inspect the water qual-
ity and replace the circulating water on a
regular basis.
3. Never use sea water for cooling.
Caution
Precautions
Be sure to read before handling.
Refer to front matters 42 and 43
for Safety Instructions and
pages 6 to 8 for Air Preparation
Equipment Precautions.
(1)
(2)
(3)
Inlet cooling water temperature (°C)
16
Series HAW
