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AFX-OHACBOverhead Active Chilled Beam
AirFixture Overhead Active Chilled Beam
(OHACB) systems are designed to maintain a
comfortable indoor climate, and engineered for
low energy consumption and compatability in a
low-height ceiling void. These systems provide
full cooling, heating, ventilation and humidity
control – all with near-silent operation and
minimal maintenance requirements.
Concept & Technology
Air Distribution & Facade Orientation
Product Features
Dimensions
Performance Data
Selection Example
Selection Summary
Guide Specifications
3
4
5–6
7–8
9–16
17–18
19
20
Chiller
Tempered
Water
Circuit
ActiveChilled Beams
Air Handling Unit
+-
Nozzles
Mixing Section
Heat Exchange
Perforated Screenor Linear Bar Grille
Room Air
ConditionedVentilation Air
FIGURE 2: Operating Principle of the Active Chilled Beam
CONCEPT
The principle of the active chilled beam system is to use terminal chilled water heat exchangers in the ceiling to offset the room sensible cooling loads or to provide sensible heating. The ventilation and humidity control requirements are
taken care of using a separate primary conditioned air supplied by a central air handling unit.
Due to the relatively high supply chilled water temperatures – approximately 57°F (14°C) – the heat exchangers
operate dry avoiding many of the maintenance and health concerns that are associated with other systems that use
terminal heat exchangers such as fan coil units.
The system provides large energy savings primarily because the amount of air circulated throughout the building can
be reduced very close to the ventilation and humidity control requirements. This will result in large reductions in air
handling unit fan power and energy consumption.
Further energy savings result from the use of high chilled water temperatures serving the heat exchangers. This can
allow the water chiller to operate at higher water temperatures improving chiller operating efficiency and energy con-
sumption.
TECHNOLOGY
AirFixture Overhead Active Chilled Beams integrate the primary air distribution function with the secondary air heat
exchange using a proprietary air nozzle technology to induce secondary room air into the unit and through the heat
exchanger before mixing with the primary air. The resulting mixture of primary air and induced secondary room air is
then supplied to the room through the contoured diffusers which are designed to keep the air close to the ceiling using the Coanda effect.
AirFixture’s AFX-OHACB series units are designed with a nominal width of 24" (600mm) to integrate with the ceiling
grids of the most common ceiling configurations. Standard nominal unit lengths are 48"–120" (1200mm–3000mm) in 12" (300mm) increments; special lengths are also available to satisfy specific ceiling requirements.
FIGURE 1: Overhead Active Chilled Beam System
Overhead Active Chilled Beam
3
AFX-OHACB
Comfort Zone
6’1.8m
3.3’1.0m
1.6’0.5m
Facade
Facade
AIR DISTRIBUTION
The shape of the supply slot diffusers are specifically designed to create two opposing discharge air flows from the active chilled beam, which travel along the suspended ceiling. The velocity of the supply air along the suspended ceil-
ing creates a Coandă effect, whereby velocity differences in cool air flow press the air stream against the suspended ceiling, extending air throw and preventing cool air from dropping into the comfort zone prematurely. It is necessary
for the suspended ceiling to be flat and free of any obstacles, such as light fixtures situated close to the supply slots, as any obstructions can interfere with the Coandă effect.
FACADE ORIENTATION
Orientation of the active chilled beam in relation to the facade has no influence on operation. The choice between the two most common installation arrangements, perpendicular and parallel, is generally determined by:
• Aesthetics (fitting into the pattern of the suspended ceiling)
• Level of flexibility to create offices within the floor plan
• Number of active chilled beams required to condition the space
• Available distance for air throw – the air must have the opportunity to mix with room air before intersecting a wall
or an opposing air stream from another chilled beam
• Obstructions in the suspended ceiling that might interfere with air flow, such as lighting fixtures
• Obstructions in the facade or floor that might interfere with air flow, such as radiators or floor convectors
FIGURE 3: Air Distribution Pattern Based on Coandă Effect
FIGURE 4A: Perpendicular to Facade FIGURE 4B: Parallel to Facade
4
PRODUCT FEATURES
High Capacity Nozzle ConfigurationsAFX-OHACB series active chilled beams are available with eight (8) optional nozzle configurations. Each is designed to provide high induction rates for secondary room air, resulting in high cooling and heating capacities. This makes
them suitable for applications in building perimeter zones with higher loads, as well as internal zones. Nozzles are
factory installed and can be blanked if single-side discharge is required.
Low Height
The AFX-OHACB series is available up to a maximum height of 8-1/4" (210mm), providing compatibility with reduced
height ceiling voids to maximize ceiling heights. Alternatively the building slab-to-slab height can be reduced, allowing
more floors in a given building height.
Flexible SizesUnits are available in lengths between 48"–120" (1200mm–3000mm), providing compatibility with most common ceil-
ing configurations. Unit lengths can be also be custom tailored to match specific installation requirements.
Diffuser OptionsThe AFX-OHACB series is available with either perforated return air diffusers or linear blade diffusers. Performance is identical for both configurations; options are offered to best match the aesthetic requirements of the building. Exposed metal surfaces are powder coated with a standard finish color RAL 9010 (20% gloss); other RAL colors are available to match project requirements. Units can also be supplied with either perforated or linear blade center diffusers.
FIGURE 5: High Efficiency Air Nozzles
FIGURE 6A: Perforated Return Diffuser FIGURE 6B: Linear Blade Return Diffuser
Overhead Active Chilled Beam
5
AFX-OHACB
Simple MountingUnits can be easily suspended from the overhead concrete slab, using threaded rod or hanging wire support systems
to match with metal panel, fiber board or plaster ceilings. Units can also be installed without false ceilings.
Minimal NoiseEfficiently shaped nozzles create maximum induction at a minimum sound level.
Low Maintenance
AFX-OHACB series active chilled beams include no filter, fan, drain pan or any other moving parts. As a result, main-
tenance is limited to cleaning exposed metal surfaces and using a standard vacuum hose to remove dust from the
heat exchanger every 2–5 years, depending on the cleanliness of the supply air. The heat exchanger can be easily
accessed by releasing the center diffuser, which is equipped with safety hanging wires.
ControlsThe AFX-OHACB can be supplied with constant air volume controllers for primary air, water control valves with room
control sensors, as well as balancing and isolation valves and condensation sensors.
Air Distribution Control (Optional)AFX-OHACB series units can be supplied with optional air discharge deflectors, which create a variable air discharge
pattern. These deflectors can be independently adjusted to provide an array of distribution patterns.
15°15°
15°
15°
15°15
°
FIGURE 7: Air Discharge Deflectors for Distribution Control
6
2 Duct Connections
(Models AFX-OHACB-8/10)
A
E/4 E/4E/2
E
F
KØD
C
B
E
C1
F
K1
ØD1
Overhead Active Chilled Beam
DIMENSIONS
Side Duct Connection
Top Duct Connection
7
AFX-OHACB
Water Connections (Nominal Diameter)
Dimensional Data (Nominal)
UNIT SIZE48"
(1200mm)60"
(1500mm)72"
(1800mm)96"
(2400mm)120"
(3000mm)
A47-3/4"
(1195mm)59-3/4"
(1495mm)71-3/4"
(1795mm)95-3/4"
(2395mm)119-3/4"
(2995mm)
B23-3/4"
(595mm)23-3/4"
(595mm)23-3/4"
(595mm)23-3/4"
(595mm)23-3/4"
(595mm)
C3-3/4"
(96mm)3-3/4"
(96mm)3-3/4"
(96mm)3-3/4"
(96mm)3-3/4"
(96mm)
C1 8-5/8"(221mm)
8-5/8"(221mm)
8-5/8"(221mm)
8-5/8"(221mm)
8-5/8"(221mm)
D(1x) Ø 5"(123mm)
(1x) Ø 5"(123mm)
(1x) Ø 5"(123mm)
(2x) Ø 5"(123mm)
(2x) Ø 5"(123mm)
D1 (1x) Ø 5"(123mm)
(1x) Ø 5"(123mm)
(1x) Ø 5"(123mm)
(1x) Ø 6"(158mm)
(1x) Ø 8"(198mm)
E41-7/8"
(1064mm)53-11/16"(1364mm)
65-1/2"(1664mm)
89-1/8"(2264mm)
112-3/4"(2864mm)
F18-1/16"(460mm)
18-1/16"(460mm)
18-1/16"(460mm)
18-1/16"(460mm)
18-1/16"(460mm)
K8-1/4"
(210mm)8-1/4"
(210mm)8-1/4"
(210mm)8-1/4"
(210mm)8-1/4"
(210mm)
K1 11-1/4"(285mm)
11-1/4"(285mm)
11-1/4"(285mm)
11-1/4"(285mm)
11-1/4"(285mm)
UNIT WEIGHT55lb
(25 kg)66lb
(30kg)75lb
(34kg)97lb
(44kg)119lb(54kg)
UNIT SIZE4'–6'
(1.2m–1.8m)7'–10'
(2.4m–3.0m)
CHILLED WATER1/2"
(12mm)
5/8"
(15mm)
HOT WATER 1/2"
(12mm)
1/2"
(12mm)
8
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.48
1.1
76
06
55
50
.63
2.0
46
67
25
1
10
60
.51
38
23
00
0.6
31
.17
24
23
40
0.9
52
.64
27
64
38
1.2
74
.68
29
69
37
0.3
20
.50
50
37
61
0.4
81
.17
63
69
56
0.6
32
.04
70
13
52
11
90
.63
41
25
82
0.6
31
.17
25
59
40
0.9
52
.64
29
34
38
1.2
74
.68
31
05
37
0.3
20
.50
52
65
62
0.4
81
.17
66
34
57
0.6
32
.04
73
16
53
H1
93
0.1
93
12
01
80
.63
1.1
72
18
43
90
.95
2.6
42
49
13
71
.27
4.6
82
66
13
60
.32
0.5
04
39
35
70
.48
1.1
75
57
35
30
.63
2.0
46
14
14
9
11
00
.26
37
23
87
0.6
31
.17
22
86
39
0.9
52
.64
26
27
38
1.2
74
.68
27
98
36
0.3
20
.50
46
59
58
0.4
81
.17
59
14
54
0.6
32
.04
64
82
50
12
70
.35
41
27
56
0.6
31
.17
23
88
40
0.9
52
.64
27
64
38
1.2
74
.68
29
34
37
0.3
20
.50
48
86
60
0.4
81
.17
62
17
55
0.6
32
.04
68
24
51
14
40
.45
43
31
25
0.6
31
.17
24
91
40
0.9
52
.64
28
66
38
1.2
74
.68
30
37
37
0.3
20
.50
51
13
61
0.4
81
.17
64
82
56
0.6
32
.04
71
27
52
16
10
.57
46
34
94
0.6
31
.17
25
59
40
0.9
52
.64
29
34
38
1.2
74
.68
31
39
37
0.3
20
.50
53
02
62
0.4
81
.17
67
10
57
0.6
32
.04
73
92
53
YK
-OH
AC
B-4
(4')
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=20°F
CO
OL
ING
(T
RC -
TC
HS =
18
°F)
HE
AT
ING
(T
HW
S -
TR
H =
70
°F)
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
Ove
rhe
ad
Active C
hill
ed B
eam
2-W
ay A
ir Fl
ow /
4-Pi
peP
ER
FO
RM
AN
CE
DA
TA
AF
X-O
HA
CB
9
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
20°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 2
0°F
.
A
ltern
atively
, air c
oolin
g c
apacity c
an b
e c
alc
ula
ted fro
m the form
ula
: A
ir c
oolin
g c
apacity Q
S =
1.0
85 x
Airfl
ow (c
fm) x
(TR
C-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
18°F
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
8°F
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
70°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 7
0°F
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(l/s
)(P
a)
(NC
)(W
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)
A0
63
6≤15
73
0.0
43
.53
80
2.2
0.0
67
.94
30
1.7
0.0
81
44
60
1.4
0.0
21
.56
60
7.9
0.0
33
.58
40
6.7
0.0
46
.19
30
5.5
86
4≤15
97
0.0
43
.54
70
2.8
0.0
67
.95
30
2.1
0.0
81
45
70
1.7
0.0
21
.58
80
10
.60
.03
3.5
11
20
8.9
0.0
46
.11
23
07
.3
10
10
0≤15
12
10
.04
3.5
54
03
.20
.06
7.9
61
02
.40
.08
14
65
01
.90
.02
1.5
10
60
12
.60
.03
3.5
13
40
10
.70
.04
6.1
14
70
8.8
12
14
4≤15
14
60
.04
3.5
59
03
.50
.06
7.9
68
02
.70
.08
14
72
02
.20
.02
1.5
12
00
14
.30
.03
3.5
15
20
12
.10
.04
6.1
16
70
10
.0
14
19
61
71
70
0.0
43
.56
40
3.8
0.0
67
.97
30
2.9
0.0
81
47
80
2.3
0.0
21
.51
32
01
5.8
0.0
33
.51
67
01
3.3
0.0
46
.11
84
01
1.0
A1
84
2≤15
97
0.0
43
.54
10
2.4
0.0
67
.94
60
1.8
0.0
81
44
90
1.5
0.0
21
.58
30
9.9
0.0
33
.51
04
08
.30
.04
6.1
11
50
6.9
10
66
≤15
12
10
.04
3.5
49
02
.90
.06
7.9
57
02
.30
.08
14
60
01
.80
.02
1.5
10
00
11
.90
.03
3.5
12
60
10
.00
.04
6.1
13
90
8.3
12
95
≤15
14
60
.04
3.5
57
03
.40
.06
7.9
65
02
.60
.08
14
69
02
.10
.02
1.5
11
40
13
.60
.03
3.5
14
40
11
.50
.04
6.1
15
80
9.4
14
12
9≤15
17
00
.04
3.5
63
03
.70
.06
7.9
72
02
.90
.08
14
76
02
.30
.02
1.5
12
60
15
.00
.03
3.5
15
90
12
.70
.04
6.1
17
50
10
.4
16
16
91
81
94
0.0
43
.56
80
4.1
0.0
67
.97
80
3.1
0.0
81
48
30
2.5
0.0
21
.51
36
01
6.3
0.0
33
.51
72
01
3.7
0.0
46
.11
90
01
1.3
B1
12
47
≤15
14
60
.04
3.5
44
02
.60
.06
7.9
51
02
.00
.08
14
54
01
.60
.02
1.5
91
01
0.9
0.0
33
.51
15
09
.20
.04
6.1
12
70
7.6
15
73
≤15
18
20
.04
3.5
52
03
.10
.06
7.9
60
02
.40
.08
14
64
01
.90
.02
1.5
10
50
12
.60
.03
3.5
13
30
10
.60
.04
6.1
14
70
8.8
18
10
51
82
18
0.0
43
.55
90
3.5
0.0
67
.96
80
2.7
0.0
81
47
20
2.2
0.0
21
.51
17
01
4.0
0.0
33
.51
49
01
1.8
0.0
46
.11
63
09
.8
21
14
32
22
55
0.0
43
.56
50
3.9
0.0
67
.97
40
3.0
0.0
81
47
90
2.4
0.0
21
.51
28
01
5.3
0.0
33
.51
62
01
2.9
0.0
46
.11
78
01
0.6
24
18
62
62
91
0.0
43
.57
00
4.2
0.0
67
.98
00
3.2
0.0
81
48
50
2.5
0.0
21
.51
37
01
6.4
0.0
33
.51
74
01
3.8
0.0
46
.11
91
01
1.4
C1
18
57
≤15
21
80
.04
3.5
51
03
.10
.06
7.9
59
02
.30
.08
14
62
01
.90
.02
1.5
95
01
1.4
0.0
33
.51
21
09
.60
.04
6.1
13
30
7.9
22
85
20
26
70
.04
3.5
58
03
.50
.06
7.9
66
02
.60
.08
14
71
02
.10
.02
1.5
10
80
12
.90
.03
3.5
13
70
10
.90
.04
6.1
15
10
9.0
26
11
92
53
15
0.0
43
.56
30
3.8
0.0
67
.97
30
2.9
0.0
81
47
70
2.3
0.0
21
.51
19
01
4.2
0.0
33
.51
51
01
2.0
0.0
46
.11
66
09
.9
30
15
82
83
64
0.0
43
.56
80
4.1
0.0
67
.97
80
3.1
0.0
81
48
30
2.5
0.0
21
.51
28
01
5.3
0.0
33
.51
63
01
2.9
0.0
46
.11
79
01
0.7
34
20
33
14
12
0.0
43
.57
20
4.3
0.0
67
.98
30
3.3
0.0
81
48
80
2.6
0.0
21
.51
37
01
6.3
0.0
33
.51
73
01
3.8
0.0
46
.11
91
01
1.4
E1
24
58
20
29
10
.04
3.5
56
03
.30
.06
7.9
64
02
.60
.08
14
68
02
.00
.02
1.5
10
70
12
.80
.03
3.5
13
60
10
.80
.04
6.1
14
90
8.9
28
79
24
34
00
.04
3.5
61
03
.60
.06
7.9
70
02
.80
.08
14
74
02
.20
.02
1.5
11
70
14
.00
.03
3.5
14
80
11
.80
.04
6.1
16
30
9.7
32
10
32
83
88
0.0
43
.56
50
3.9
0.0
67
.97
50
3.0
0.0
81
48
00
2.4
0.0
21
.51
26
01
5.0
0.0
33
.51
59
01
2.7
0.0
46
.11
75
01
0.5
36
13
03
14
37
0.0
43
.56
90
4.1
0.0
67
.97
90
3.2
0.0
81
48
40
2.5
0.0
21
.51
34
01
6.0
0.0
33
.51
69
01
3.5
0.0
46
.11
86
01
1.1
40
16
03
34
85
0.0
43
.57
30
4.3
0.0
67
.98
30
3.3
0.0
81
48
90
2.6
0.0
21
.51
41
01
6.8
0.0
33
.51
78
01
4.2
0.0
46
.11
96
01
1.7
F1
28
50
22
34
00
.04
3.5
56
03
.40
.06
7.9
65
02
.60
.08
14
69
02
.00
.02
1.5
10
80
12
.90
.03
3.5
13
70
10
.90
.04
6.1
15
10
9.0
33
70
27
40
00
.04
3.5
61
03
.70
.06
7.9
70
02
.80
.08
14
75
02
.20
.02
1.5
11
80
14
.10
.03
3.5
15
00
11
.90
.04
6.1
16
50
9.8
38
93
30
46
10
.04
3.5
66
03
.90
.06
7.9
75
03
.00
.08
14
80
02
.40
.02
1.5
12
70
15
.20
.03
3.5
16
10
12
.80
.04
6.1
17
70
10
.6
43
11
93
45
22
0.0
43
.57
00
4.2
0.0
67
.98
00
3.2
0.0
81
48
50
2.5
0.0
21
.51
35
01
6.1
0.0
33
.51
71
01
3.6
0.0
46
.11
88
01
1.2
48
14
83
75
82
0.0
43
.57
30
4.4
0.0
67
.98
40
3.3
0.0
81
48
90
2.7
0.0
21
.51
42
01
6.9
0.0
33
.51
79
01
4.3
0.0
46
.11
97
01
1.8
G1
32
52
25
38
80
.04
3.5
57
03
.40
.06
7.9
65
02
.60
.08
14
69
02
.10
.02
1.5
11
10
13
.30
.03
3.5
14
10
11
.20
.04
6.1
15
50
9.3
38
73
30
46
10
.04
3.5
62
03
.70
.06
7.9
71
02
.80
.08
14
76
02
.30
.02
1.5
11
90
14
.30
.03
3.5
15
10
12
.00
.04
6.1
16
60
9.9
44
97
34
53
40
.04
3.5
67
04
.00
.06
7.9
77
03
.10
.08
14
82
02
.40
.02
1.5
12
70
15
.10
.03
3.5
16
00
12
.80
.04
6.1
17
60
10
.5
50
12
63
86
07
0.0
43
.57
10
4.2
0.0
67
.98
10
3.2
0.0
81
48
70
2.6
0.0
21
.51
33
01
5.9
0.0
33
.51
68
01
3.4
0.0
46
.11
85
01
1.0
56
15
84
16
79
0.0
43
.57
50
4.5
0.0
67
.98
60
3.4
0.0
81
49
10
2.7
0.0
21
.51
39
01
6.5
0.0
33
.51
75
01
4.0
0.0
46
.11
93
01
1.5
H1
44
47
31
53
40
.04
3.5
64
03
.80
.06
7.9
73
02
.90
.08
14
78
02
.30
.02
1.5
11
60
13
.90
.03
3.5
14
70
11
.70
.04
6.1
16
20
9.6
52
66
37
63
10
.04
3.5
67
04
.00
.06
7.9
77
03
.10
.08
14
82
02
.40
.02
1.5
12
30
14
.70
.03
3.5
15
60
12
.40
.04
6.1
17
10
10
.2
60
88
41
72
80
.04
3.5
70
04
.20
.06
7.9
81
03
.20
.08
14
86
02
.60
.02
1.5
12
90
15
.40
.03
3.5
16
40
13
.00
.04
6.1
18
00
10
.8
68
11
34
38
25
0.0
43
.57
30
4.4
0.0
67
.98
40
3.3
0.0
81
48
90
2.7
0.0
21
.51
35
01
6.1
0.0
33
.51
71
01
3.6
0.0
46
.11
88
01
1.2
76
14
24
69
22
0.0
43
.57
50
4.5
0.0
67
.98
60
3.4
0.0
81
49
20
2.7
0.0
21
.51
40
01
6.7
0.0
33
.51
77
01
4.1
0.0
46
.11
95
01
1.6
YK
-OH
AC
B-4
(1200m
m)
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=10°C
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
CO
OL
ING
(T
RC -
TC
HS =
10
°C)
HE
AT
ING
(T
HW
S -
TR
H =
35
°C)
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
10°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 1
0°C
.
A
ltern
ativ
ely,
air
cool
ing
capa
city
can
be
calc
ulat
ed fr
om th
e fo
rmul
a: A
ir co
olin
g ca
paci
ty W
= 1
.213
x A
irflow
(l/s
) x (T
RC-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
10°C
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
0°C
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
35°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 3
5°C
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
10
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(cfm
)(i
n.
w.c
.)(N
C)
(Btu
/hr)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
A0
21
0.1
6≤15
46
00
.63
1.6
11
94
56
0.9
53
.61
22
52
51
.27
6.4
62
38
84
0.4
81
.47
39
77
17
0.6
32
.61
50
37
16
0.7
94
.05
55
30
14
28
0.2
7≤15
59
80
.63
1.6
12
35
47
0.9
53
.61
26
96
61
.27
6.4
62
86
65
0.4
81
.47
52
65
22
0.6
32
.61
66
66
21
0.7
94
.05
73
48
19
34
0.4
1≤15
73
60
.63
1.6
12
69
69
0.9
53
.61
30
71
61
.27
6.4
63
27
65
0.4
81
.47
63
25
27
0.6
32
.61
79
92
25
0.7
94
.05
87
87
22
40
0.5
8≤15
87
40
.63
1.6
12
93
49
0.9
53
.61
33
78
71
.27
6.4
63
58
36
0.4
81
.47
71
58
30
0.6
32
.61
90
90
29
0.7
94
.05
99
99
25
47
0.7
81
71
01
20
.63
1.6
13
17
31
00
.95
3.6
13
65
18
1.2
76
.46
38
56
60
.48
1.4
77
91
63
30
.63
2.6
19
99
93
20
.79
4.0
51
09
84
28
A1
28
0.1
8≤15
59
80
.63
1.6
12
08
17
0.9
53
.61
23
88
51
.27
6.4
62
52
54
0.4
81
.47
49
24
21
0.6
32
.61
62
49
20
0.7
94
.05
68
55
17
34
0.2
7≤15
73
60
.63
1.6
12
49
18
0.9
53
.61
28
32
61
.27
6.4
63
03
75
0.4
81
.47
59
46
25
0.6
32
.61
75
37
24
0.7
94
.05
82
95
21
40
0.3
9≤15
87
40
.63
1.6
12
83
29
0.9
53
.61
32
42
71
.27
6.4
63
44
65
0.4
81
.47
67
80
29
0.6
32
.61
85
98
27
0.7
94
.05
94
69
24
47
0.5
2≤15
10
12
0.6
31
.61
31
05
10
0.9
53
.61
35
83
81
.27
6.4
63
78
76
0.4
81
.47
74
99
32
0.6
32
.61
95
07
30
0.7
94
.05
10
45
32
6
53
0.6
71
81
15
00
.63
1.6
13
37
81
10
.95
3.6
13
85
68
1.2
76
.46
40
95
60
.48
1.4
78
14
33
40
.63
2.6
11
03
02
32
0.7
94
.05
11
32
52
9
B1
42
0.2
1≤15
92
00
.63
1.6
12
49
18
0.9
53
.61
28
66
61
.27
6.4
63
03
75
0.4
81
.47
56
43
24
0.6
32
.61
71
58
23
0.7
94
.05
78
78
20
51
0.3
0≤15
11
04
0.6
31
.61
27
64
90
.95
3.6
13
17
37
1.2
76
.46
33
78
50
.48
1.4
76
40
12
70
.63
2.6
18
10
52
60
.79
4.0
58
90
12
2
59
0.4
11
81
28
70
.63
1.6
13
00
39
0.9
53
.61
34
46
71
.27
6.4
63
65
16
0.4
81
.47
70
45
30
0.6
32
.61
89
01
28
0.7
94
.05
98
10
25
68
0.5
32
21
47
10
.63
1.6
13
20
71
00
.95
3.6
13
65
18
1.2
76
.46
38
90
60
.48
1.4
77
61
33
20
.63
2.6
19
62
03
00
.79
4.0
51
05
67
27
76
0.6
72
61
65
50
.63
1.6
13
37
81
10
.95
3.6
13
85
68
1.2
76
.46
41
29
70
.48
1.4
78
10
53
40
.63
2.6
11
02
64
32
0.7
94
.05
11
28
72
8
C1
11
70
.22
≤15
25
29
0.6
31
.61
27
30
90
.95
3.6
13
13
97
1.2
76
.46
33
44
50
.48
1.4
76
32
52
70
.63
2.6
17
99
22
50
.79
4.0
58
78
72
2
16
30
.31
20
35
41
0.6
31
.61
29
69
90
.95
3.6
13
41
27
1.2
76
.46
36
17
60
.48
1.4
76
89
32
90
.63
2.6
18
71
12
70
.79
4.0
59
58
22
4
21
60
.41
25
46
90
0.6
31
.61
31
73
10
0.9
53
.61
36
51
81
.27
6.4
63
89
06
0.4
81
.47
74
23
31
0.6
32
.61
93
93
30
0.7
94
.05
10
30
22
6
27
80
.53
28
60
24
0.6
31
.61
33
78
11
0.9
53
.61
38
56
81
.27
6.4
64
09
56
0.4
81
.47
78
78
33
0.6
32
.61
99
61
31
0.7
94
.05
10
94
62
8
34
50
.65
31
74
95
0.6
31
.61
35
49
11
0.9
53
.61
40
60
91
.27
6.4
64
29
97
0.4
81
.47
82
57
35
0.6
32
.61
10
45
33
30
.79
4.0
51
15
14
29
E1
81
0.2
32
01
74
70
.63
1.6
12
79
89
0.9
53
.61
32
07
71
.27
6.4
63
37
85
0.4
81
.47
64
01
27
0.6
32
.61
81
05
26
0.7
94
.05
89
01
22
93
0.3
12
42
02
30
.63
1.6
13
03
71
00
.95
3.6
13
48
07
1.2
76
.46
36
85
60
.48
1.4
77
00
72
90
.63
2.6
18
86
32
80
.79
4.0
59
73
42
5
10
60
.41
28
22
99
0.6
31
.61
32
42
10
0.9
53
.61
37
19
81
.27
6.4
63
95
86
0.4
81
.47
75
37
32
0.6
32
.61
95
07
30
0.7
94
.05
10
45
32
6
11
90
.51
31
25
75
0.6
31
.61
34
12
11
0.9
53
.61
39
24
81
.27
6.4
64
16
37
0.4
81
.47
79
92
34
0.6
32
.61
10
11
33
20
.79
4.0
51
10
97
28
13
10
.62
33
28
51
0.6
31
.61
35
83
11
0.9
53
.61
41
29
91
.27
6.4
64
36
87
0.4
81
.47
84
08
35
0.6
32
.61
10
64
33
40
.79
4.0
51
17
03
30
F1
93
0.2
02
22
02
30
.63
1.6
12
79
89
0.9
53
.61
32
07
71
.27
6.4
63
75
36
0.4
81
.47
64
77
27
0.6
32
.61
81
81
26
0.7
94
.05
90
14
23
11
00
.28
27
23
91
0.6
31
.61
30
37
10
0.9
53
.61
35
15
71
.27
6.4
63
71
96
0.4
81
.47
70
83
30
0.6
32
.61
89
38
28
0.7
94
.05
98
47
25
12
70
.37
30
27
59
0.6
31
.61
32
76
10
0.9
53
.61
37
53
81
.27
6.4
63
99
26
0.4
81
.47
76
13
32
0.6
32
.61
96
20
30
0.7
94
.05
10
56
72
7
14
40
.48
34
31
27
0.6
31
.61
34
46
11
0.9
53
.61
39
58
81
.27
6.4
64
23
17
0.4
81
.47
80
67
34
0.6
32
.61
10
18
83
20
.79
4.0
51
12
11
28
16
10
.59
37
34
95
0.6
31
.61
36
17
11
0.9
53
.61
41
63
91
.27
6.4
64
43
67
0.4
81
.47
84
46
36
0.6
32
.61
10
68
13
40
.79
4.0
51
17
79
30
G1
11
40
.24
25
24
83
0.6
31
.61
29
34
90
.95
3.6
13
34
47
1.2
76
.46
35
83
60
.48
1.4
76
66
62
80
.63
2.6
18
40
82
70
.79
4.0
59
27
92
3
13
10
.31
30
28
51
0.6
31
.61
31
39
10
0.9
53
.61
36
17
81
.27
6.4
63
82
26
0.4
81
.47
71
20
30
0.6
32
.61
90
14
28
0.7
94
.05
99
23
25
14
80
.39
34
32
19
0.6
31
.61
33
44
11
0.9
53
.61
38
22
81
.27
6.4
64
06
06
0.4
81
.47
75
75
32
0.6
32
.61
95
82
30
0.7
94
.05
10
52
92
7
16
50
.49
38
35
87
0.6
31
.61
35
15
11
0.9
53
.61
40
26
81
.27
6.4
64
26
57
0.4
81
.47
79
16
33
0.6
32
.61
10
03
73
20
.79
4.0
51
10
59
28
18
20
.60
41
39
54
0.6
31
.61
36
85
12
0.9
53
.61
41
97
91
.27
6.4
64
47
07
0.4
81
.47
82
57
35
0.6
32
.61
10
45
33
30
.79
4.0
51
15
14
29
H1
15
30
.20
31
33
11
0.6
31
.61
32
07
10
0.9
53
.61
36
85
81
.27
6.4
63
92
46
0.4
81
.47
69
31
29
0.6
32
.61
87
87
28
0.7
94
.05
96
58
24
17
80
.28
37
38
62
0.6
31
.61
33
78
11
0.9
53
.61
38
56
81
.27
6.4
64
09
56
0.4
81
.47
73
48
31
0.6
32
.61
93
17
29
0.7
94
.05
10
22
62
6
20
30
.36
41
44
14
0.6
31
.61
35
15
11
0.9
53
.61
40
26
81
.27
6.4
64
26
57
0.4
81
.47
77
26
32
0.6
32
.61
97
72
31
0.7
94
.05
10
75
62
7
22
90
.46
43
49
66
0.6
31
.61
36
17
11
0.9
53
.61
41
63
91
.27
6.4
64
43
67
0.4
81
.47
80
67
34
0.6
32
.61
10
18
83
20
.79
4.0
51
12
11
28
25
40
.57
46
55
18
0.6
31
.61
37
53
12
0.9
53
.61
42
99
91
.27
6.4
64
57
27
0.4
81
.47
83
32
35
0.6
32
.61
10
56
73
30
.79
4.0
51
16
28
29
YK
-OH
AC
B-6
(6')
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=20°F
CO
OL
ING
(T
RC -
TC
HS =
18
°F)
HE
AT
ING
(T
HW
S -
TR
H =
70
°F)
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
Ove
rhe
ad
Active C
hill
ed B
eam
PE
RF
OR
MA
NC
E D
ATA
AF
X-O
HA
CB
11 2-W
ay A
ir Fl
ow /
4-Pi
pe
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
20°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 2
0°F
.
A
ltern
atively
, air c
oolin
g c
apacity c
an b
e c
alc
ula
ted fro
m the form
ula
: A
ir c
oolin
g c
apacity Q
S =
1.0
85 x
Airfl
ow (c
fm) x
(TR
C-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
18°F
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
8°F
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
70°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 7
0°F
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(l/s
)(P
a)
(NC
)(W
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)
A0
10
40
≤15
12
10
.04
4.8
57
03
.40
.06
10
.86
60
2.6
0.0
81
9.3
70
02
.10
.03
4.4
10
50
8.3
0.0
47
.81
33
07
.90
.05
12
.11
46
07
.0
13
68
≤15
15
80
.04
4.8
69
04
.10
.06
10
.87
90
3.2
0.0
81
9.3
84
02
.50
.03
4.4
13
90
11
.10
.04
7.8
17
60
10
.50
.05
12
.11
94
09
.3
16
10
3≤15
19
40
.04
4.8
79
04
.70
.06
10
.89
00
3.6
0.0
81
9.3
96
02
.90
.03
4.4
16
70
13
.30
.04
7.8
21
10
12
.60
.05
12
.12
32
01
1.1
19
14
52
12
30
0.0
44
.88
60
5.2
0.0
61
0.8
99
03
.90
.08
19
.31
05
03
.10
.03
4.4
18
90
15
.10
.04
7.8
24
00
14
.30
.05
12
.12
64
01
2.6
22
19
52
42
67
0.0
44
.89
30
5.6
0.0
61
0.8
10
70
4.2
0.0
81
9.3
11
30
3.4
0.0
34
.42
09
01
6.6
0.0
47
.82
64
01
5.8
0.0
51
2.1
29
00
13
.9
A1
13
45
≤15
15
80
.04
4.8
61
03
.60
.06
10
.87
00
2.8
0.0
81
9.3
74
02
.20
.03
4.4
13
00
10
.40
.04
7.8
16
50
9.8
0.0
51
2.1
18
10
8.7
16
68
≤15
19
40
.04
4.8
73
04
.30
.06
10
.88
30
3.3
0.0
81
9.3
89
02
.60
.03
4.4
15
70
12
.50
.04
7.8
19
90
11
.90
.05
12
.12
19
01
0.4
19
96
18
23
00
.04
4.8
83
04
.90
.06
10
.89
50
3.8
0.0
81
9.3
10
10
3.0
0.0
34
.41
79
01
4.3
0.0
47
.82
27
01
3.5
0.0
51
2.1
25
00
11
.9
22
12
92
22
67
0.0
44
.89
10
5.4
0.0
61
0.8
10
50
4.2
0.0
81
9.3
11
10
3.3
0.0
34
.41
98
01
5.8
0.0
47
.82
51
01
5.0
0.0
51
2.1
27
60
13
.2
25
16
62
63
03
0.0
44
.89
90
5.9
0.0
61
0.8
11
30
4.5
0.0
81
9.3
12
00
3.6
0.0
34
.42
15
01
7.1
0.0
47
.82
72
01
6.2
0.0
51
2.1
29
90
14
.3
B1
20
52
16
24
30
.04
4.8
73
04
.40
.06
10
.88
40
3.3
0.0
81
9.3
89
02
.70
.03
4.4
14
90
11
.90
.04
7.8
18
90
11
.30
.05
12
.12
08
09
.9
24
75
21
29
10
.04
4.8
81
04
.80
.06
10
.89
30
3.7
0.0
81
9.3
99
02
.90
.03
4.4
16
90
13
.40
.04
7.8
21
40
12
.80
.05
12
.12
35
01
1.2
28
10
22
53
40
0.0
44
.88
80
5.2
0.0
61
0.8
10
10
4.0
0.0
81
9.3
10
70
3.2
0.0
34
.41
86
01
4.8
0.0
47
.82
35
01
4.0
0.0
51
2.1
25
90
12
.3
32
13
32
93
88
0.0
44
.89
40
5.6
0.0
61
0.8
10
70
4.3
0.0
81
9.3
11
40
3.4
0.0
34
.42
01
01
6.0
0.0
47
.82
54
01
5.2
0.0
51
2.1
27
90
13
.3
36
16
83
24
37
0.0
44
.89
90
5.9
0.0
61
0.8
11
30
4.5
0.0
81
9.3
12
10
3.6
0.0
34
.42
14
01
7.0
0.0
47
.82
71
01
6.2
0.0
51
2.1
29
80
14
.2
C1
55
55
23
34
00
.04
4.8
80
04
.80
.06
10
.89
20
3.7
0.0
81
9.3
98
02
.90
.03
4.4
16
70
13
.30
.04
7.8
21
10
12
.60
.05
12
.12
32
01
1.1
77
77
27
40
00
.04
4.8
87
05
.20
.06
10
.81
00
04
.00
.08
19
.31
06
03
.20
.03
4.4
18
20
14
.50
.04
7.8
23
00
13
.80
.05
12
.12
53
01
2.1
10
21
02
31
46
10
.04
4.8
93
05
.60
.06
10
.81
07
04
.30
.08
19
.31
14
03
.40
.03
4.4
19
60
15
.60
.04
7.8
24
80
14
.80
.05
12
.12
72
01
3.0
13
11
31
34
52
20
.04
4.8
99
05
.90
.06
10
.81
13
04
.50
.08
19
.31
20
03
.60
.03
4.4
20
80
16
.50
.04
7.8
26
30
15
.70
.05
12
.12
89
01
3.8
16
31
63
36
58
20
.04
4.8
10
40
6.2
0.0
61
0.8
11
90
4.7
0.0
81
9.3
12
60
3.8
0.0
34
.42
18
01
7.4
0.0
47
.82
76
01
6.5
0.0
51
2.1
30
40
14
.5
E1
38
58
29
46
10
.04
4.8
82
04
.90
.06
10
.89
40
3.7
0.0
81
9.3
99
03
.00
.03
4.4
16
90
13
.50
.04
7.8
21
40
12
.80
.05
12
.12
35
01
1.2
44
78
33
53
40
.04
4.8
89
05
.30
.06
10
.81
02
04
.00
.08
19
.31
08
03
.20
.03
4.4
18
50
14
.70
.04
7.8
23
40
14
.00
.05
12
.12
57
01
2.3
50
10
13
56
07
0.0
44
.89
50
5.7
0.0
61
0.8
10
90
4.3
0.0
81
9.3
11
60
3.4
0.0
34
.41
99
01
5.8
0.0
47
.82
51
01
5.0
0.0
51
2.1
27
60
13
.2
56
12
63
96
79
0.0
44
.81
00
06
.00
.06
10
.81
15
04
.60
.08
19
.31
22
03
.60
.03
4.4
21
10
16
.80
.04
7.8
26
70
15
.90
.05
12
.12
93
01
4.0
62
15
54
27
52
0.0
44
.81
05
06
.30
.06
10
.81
21
04
.80
.08
19
.31
28
03
.80
.03
4.4
22
20
17
.60
.04
7.8
28
10
16
.80
.05
12
.13
09
01
4.7
F1
44
50
31
53
40
.04
4.8
82
04
.90
.06
10
.89
40
3.7
0.0
81
9.3
11
00
3.0
0.0
34
.41
71
01
3.6
0.0
47
.82
16
01
2.9
0.0
51
2.1
23
80
11
.4
52
69
35
63
10
.04
4.8
89
05
.30
.06
10
.81
03
04
.10
.08
19
.31
09
03
.30
.03
4.4
18
70
14
.90
.04
7.8
23
60
14
.10
.05
12
.12
60
01
2.4
60
93
39
72
80
.04
4.8
96
05
.70
.06
10
.81
10
04
.40
.08
19
.31
17
03
.50
.03
4.4
20
10
16
.00
.04
7.8
25
40
15
.20
.05
12
.12
79
01
3.3
68
11
94
28
25
0.0
44
.81
01
06
.10
.06
10
.81
16
04
.60
.08
19
.31
24
03
.70
.03
4.4
21
30
16
.90
.04
7.8
26
90
16
.10
.05
12
.12
96
01
4.1
76
14
84
59
22
0.0
44
.81
06
06
.40
.06
10
.81
22
04
.90
.08
19
.31
30
03
.90
.03
4.4
22
30
17
.80
.04
7.8
28
20
16
.90
.05
12
.13
11
01
4.8
G1
54
59
35
65
50
.04
4.8
86
05
.10
.06
10
.89
80
3.9
0.0
81
9.3
10
50
3.1
0.0
34
.41
76
01
4.0
0.0
47
.82
22
01
3.3
0.0
51
2.1
24
50
11
.7
62
77
39
75
20
.04
4.8
92
05
.50
.06
10
.81
06
04
.20
.08
19
.31
12
03
.40
.03
4.4
18
80
15
.00
.04
7.8
23
80
14
.20
.05
12
.12
62
01
2.5
70
98
42
84
90
.04
4.8
98
05
.80
.06
10
.81
12
04
.50
.08
19
.31
19
03
.60
.03
4.4
20
00
15
.90
.04
7.8
25
30
15
.10
.05
12
.12
78
01
3.3
78
12
24
49
46
0.0
44
.81
03
06
.10
.06
10
.81
18
04
.70
.08
19
.31
25
03
.70
.03
4.4
20
90
16
.70
.04
7.8
26
50
15
.80
.05
12
.12
92
01
3.9
86
14
94
61
04
30
.04
4.8
10
80
6.4
0.0
61
0.8
12
30
4.9
0.0
81
9.3
13
10
3.9
0.0
34
.42
18
01
7.4
0.0
47
.82
76
01
6.5
0.0
51
2.1
30
40
14
.5
H1
72
51
41
87
30
.04
4.8
94
05
.60
.06
10
.81
08
04
.30
.08
19
.31
15
03
.40
.03
4.4
18
30
14
.60
.04
7.8
23
20
13
.80
.05
12
.12
55
01
2.2
84
69
43
10
19
0.0
44
.89
90
5.9
0.0
61
0.8
11
30
4.5
0.0
81
9.3
12
00
3.6
0.0
34
.41
94
01
5.5
0.0
47
.82
46
01
4.7
0.0
51
2.1
27
00
12
.9
96
90
46
11
64
0.0
44
.81
03
06
.10
.06
10
.81
18
04
.70
.08
19
.31
25
03
.70
.03
4.4
20
40
16
.20
.04
7.8
25
80
15
.40
.05
12
.12
84
01
3.6
10
81
14
48
13
10
0.0
44
.81
06
06
.40
.06
10
.81
22
04
.90
.08
19
.31
30
03
.90
.03
4.4
21
30
16
.90
.04
7.8
26
90
16
.10
.05
12
.12
96
01
4.1
12
01
41
51
14
56
0.0
44
.81
10
06
.60
.06
10
.81
26
05
.00
.08
19
.31
34
04
.00
.03
4.4
22
00
17
.50
.04
7.8
27
90
16
.60
.05
12
.13
07
01
4.7
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
HE
AT
ING
(T
HW
S -
TR
H =
35
°C)
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=10°C
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
CO
OL
ING
(T
RC -
TC
HS =
10
°C)
YK
-OH
AC
B-6
(1800m
m)
NO
ZZ
LE
12
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
10°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 1
0°C
.
A
ltern
ativ
ely,
air
cool
ing
capa
city
can
be
calc
ulat
ed fr
om th
e fo
rmul
a: A
ir co
olin
g ca
paci
ty W
= 1
.213
x A
irflow
(l/s
) x (T
RC-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
10°C
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
0°C
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
35°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 3
5°C
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(cfm
)(i
n.
w.c
.)(N
C)
(Btu
/hr)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
A0
30
0.1
7≤15
64
40
.95
1.1
42
83
26
1.4
32
.58
32
07
41
.90
4.6
23
34
44
0.6
31
.77
54
16
17
0.7
93
.14
68
55
17
0.9
54
.92
75
37
16
38
0.2
8≤15
82
80
.95
1.1
43
37
87
1.4
32
.58
38
22
51
.90
4.6
23
99
24
0.6
31
.77
71
96
23
0.7
93
.14
91
28
23
0.9
54
.92
10
03
72
1
47
0.4
2≤15
10
12
0.9
51
.14
37
87
81
.43
2.5
84
33
36
1.9
04
.62
45
04
50
.63
1.7
78
63
52
70
.79
3.1
41
09
08
28
0.9
54
.92
12
00
62
5
55
0.5
9≤15
11
96
0.9
51
.14
41
63
91
.43
2.5
84
74
37
1.9
04
.62
49
48
50
.63
1.7
79
81
03
10
.79
3.1
41
23
85
31
0.9
54
.92
13
63
52
9
64
0.7
91
71
37
90
.95
1.1
44
47
09
1.4
32
.58
50
84
71
.90
4.6
25
32
36
0.6
31
.77
10
79
43
40
.79
3.1
41
36
73
35
0.9
54
.92
15
03
63
2
A1
40
0.2
0≤15
87
40
.95
1.1
43
10
57
1.4
32
.58
35
49
51
.90
4.6
23
68
54
0.6
31
.77
67
42
21
0.7
93
.14
85
22
22
0.9
54
.92
93
55
20
49
0.3
0≤15
10
58
0.9
51
.14
36
51
81
.43
2.5
84
16
36
1.9
04
.62
43
33
50
.63
1.7
78
10
52
60
.79
3.1
41
02
64
26
0.9
54
.92
11
32
52
4
57
0.4
2≤15
12
41
0.9
51
.14
40
95
91
.43
2.5
84
64
17
1.9
04
.62
48
45
50
.63
1.7
79
27
92
90
.79
3.1
41
17
41
30
0.9
54
.92
12
91
52
7
66
0.5
5≤15
14
25
0.9
51
.14
44
70
91
.43
2.5
85
08
47
1.9
04
.62
53
23
60
.63
1.7
71
02
64
32
0.7
93
.14
12
99
13
30
.95
4.9
21
42
79
30
74
0.7
01
81
60
90
.95
1.1
44
81
11
01
.43
2.5
85
49
48
1.9
04
.62
56
98
60
.63
1.7
71
10
97
35
0.7
93
.14
14
05
23
50
.95
4.9
21
54
53
32
B1
59
0.2
2≤15
12
87
0.9
51
.14
34
46
71
.43
2.5
83
92
46
1.9
04
.62
40
95
40
.63
1.7
77
72
62
40
.79
3.1
49
77
22
50
.95
4.9
21
07
19
23
70
0.3
1≤15
15
17
0.9
51
.14
38
56
81
.43
2.5
84
36
86
1.9
04
.62
45
72
50
.63
1.7
78
71
12
70
.79
3.1
41
10
59
28
0.9
54
.92
12
15
82
6
81
0.4
11
81
74
70
.95
1.1
44
19
79
1.4
32
.58
47
77
71
.90
4.6
24
98
25
0.6
31
.77
96
20
30
0.7
93
.14
12
15
83
10
.95
4.9
21
33
70
28
91
0.5
22
21
97
70
.95
1.1
44
50
49
1.4
32
.58
50
84
71
.90
4.6
25
32
36
0.6
31
.77
10
37
83
30
.79
3.1
41
31
43
33
0.9
54
.92
14
43
03
0
10
20
.65
26
22
07
0.9
51
.14
47
43
10
1.4
32
.58
53
91
81
.90
4.6
25
63
06
0.6
31
.77
11
05
93
50
.79
3.1
41
39
76
35
0.9
54
.92
15
37
73
2
C1
78
0.2
1≤15
17
01
0.9
51
.14
36
85
81
.43
2.5
84
19
76
1.9
04
.62
43
68
50
.63
1.7
78
59
82
70
.79
3.1
41
09
08
28
0.9
54
.92
12
00
62
5
93
0.2
92
02
02
30
.95
1.1
44
12
99
1.4
32
.58
46
75
71
.90
4.6
24
87
95
0.6
31
.77
94
31
30
0.7
93
.14
11
93
13
00
.95
4.9
21
31
05
28
10
80
.40
25
23
45
0.9
51
.14
45
04
91
.43
2.5
85
11
87
1.9
04
.62
53
23
60
.63
1.7
71
01
13
32
0.7
93
.14
12
80
23
20
.95
4.9
21
40
89
30
12
30
.51
28
26
67
0.9
51
.14
48
11
10
1.4
32
.58
54
59
81
.90
4.6
25
69
86
0.6
31
.77
10
75
63
40
.79
3.1
41
35
97
34
0.9
54
.92
14
96
13
1
13
80
.64
31
29
89
0.9
51
.14
50
84
11
1.4
32
.58
57
67
81
.90
4.6
26
03
96
0.6
31
.77
11
28
73
60
.79
3.1
41
43
17
36
0.9
54
.92
15
71
83
3
E1
10
20
.20
20
22
07
0.9
51
.14
37
53
81
.43
2.5
84
26
56
1.9
04
.62
44
36
50
.63
1.7
78
74
92
80
.79
3.1
41
10
59
28
0.9
54
.92
12
15
82
6
12
30
.29
24
26
67
0.9
51
.14
41
97
91
.43
2.5
84
77
77
1.9
04
.62
49
82
50
.63
1.7
79
54
43
00
.79
3.1
41
21
20
31
0.9
54
.92
13
29
42
8
14
40
.40
28
31
27
0.9
51
.14
45
72
10
1.4
32
.58
51
86
71
.90
4.6
25
39
16
0.6
31
.77
10
26
43
20
.79
3.1
41
29
91
33
0.9
54
.92
14
31
73
0
16
10
.53
31
34
95
0.9
51
.14
48
79
10
1.4
32
.58
55
28
81
.90
4.6
25
76
76
0.6
31
.77
10
90
83
40
.79
3.1
41
37
86
35
0.9
54
.92
15
18
83
2
18
60
.67
33
40
46
0.9
51
.14
51
52
11
1.4
32
.58
58
69
81
.90
4.6
26
10
86
0.6
31
.77
11
47
63
60
.79
3.1
41
45
06
37
0.9
54
.92
15
98
33
4
F1
12
70
.20
22
27
59
0.9
51
.14
39
58
81
.43
2.5
84
47
06
1.9
04
.62
46
75
50
.63
1.7
78
82
52
80
.79
3.1
41
11
73
28
0.9
54
.92
12
30
92
6
15
30
.29
27
33
11
0.9
51
.14
43
33
91
.43
2.5
84
94
87
1.9
04
.62
51
52
50
.63
1.7
79
65
83
00
.79
3.1
41
22
34
31
0.9
54
.92
13
44
62
8
17
80
.39
30
38
62
0.9
51
.14
46
75
10
1.4
32
.58
53
23
71
.90
4.6
25
52
86
0.6
31
.77
10
37
83
30
.79
3.1
41
31
43
33
0.9
54
.92
14
43
03
0
20
30
.51
34
44
14
0.9
51
.14
49
82
10
1.4
32
.58
56
30
81
.90
4.6
25
86
96
0.6
31
.77
10
98
43
50
.79
3.1
41
39
00
35
0.9
54
.92
15
30
13
2
22
90
.65
37
49
66
0.9
51
.14
52
21
11
1.4
32
.58
59
37
81
.90
4.6
26
17
66
0.6
31
.77
11
55
23
60
.79
3.1
41
46
20
37
0.9
54
.92
16
05
93
4
G1
14
80
.21
25
32
19
0.9
51
.14
40
26
81
.43
2.5
84
57
26
1.9
04
.62
47
77
50
.63
1.7
79
09
02
90
.79
3.1
41
15
14
29
0.9
54
.92
12
65
02
7
17
40
.29
30
37
70
0.9
51
.14
43
68
91
.43
2.5
84
98
27
1.9
04
.62
51
86
50
.63
1.7
79
73
43
10
.79
3.1
41
23
47
31
0.9
54
.92
13
55
92
9
19
90
.38
34
43
22
0.9
51
.14
46
75
10
1.4
32
.58
53
23
71
.90
4.6
25
56
26
0.6
31
.77
10
34
03
30
.79
3.1
41
30
67
33
0.9
54
.92
14
35
53
0
22
50
.49
38
48
74
0.9
51
.14
49
48
10
1.4
32
.58
56
30
81
.90
4.6
25
86
96
0.6
31
.77
10
83
23
40
.79
3.1
41
37
11
35
0.9
54
.92
15
07
43
2
25
00
.60
41
54
26
0.9
51
.14
51
86
11
1.4
32
.58
59
03
81
.90
4.6
26
14
26
0.6
31
.77
11
28
73
60
.79
3.1
41
43
17
36
0.9
54
.92
15
71
83
3
H1
19
10
.17
31
41
38
0.9
51
.14
44
02
91
.43
2.5
85
01
67
1.9
04
.62
52
21
50
.63
1.7
79
46
93
00
.79
3.1
41
19
68
30
0.9
54
.92
13
18
02
8
23
30
.26
37
50
58
0.9
51
.14
47
09
10
1.4
32
.58
53
23
71
.90
4.6
25
56
26
0.6
31
.77
10
03
73
20
.79
3.1
41
27
26
32
0.9
54
.92
13
97
62
9
27
50
.36
41
59
78
0.9
51
.14
49
48
10
1.4
32
.58
56
30
81
.90
4.6
25
86
96
0.6
31
.77
10
56
73
30
.79
3.1
41
33
70
34
0.9
54
.92
14
69
53
1
31
80
.48
43
68
97
0.9
51
.14
51
52
11
1.4
32
.58
58
69
81
.90
4.6
26
10
86
0.6
31
.77
10
98
43
50
.79
3.1
41
39
38
35
0.9
54
.92
15
30
13
2
36
00
.61
46
78
17
0.9
51
.14
53
57
11
1.4
32
.58
60
74
91
.90
4.6
26
34
77
0.6
31
.77
11
40
03
60
.79
3.1
41
44
30
36
0.9
54
.92
15
87
03
3
YK
-OH
AC
B-8
(8')
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
No
ise C
rite
ria
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=20°F
CO
OL
ING
(T
RC -
TC
HS =
18
°F)
HE
AT
ING
(T
HW
S -
TR
H =
70
°F)
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
Ove
rhe
ad
Active C
hill
ed B
eam
PE
RF
OR
MA
NC
E D
ATA
AF
X-O
HA
CB
13 2-W
ay A
ir Fl
ow /
4-Pi
pe
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
20°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 2
0°F
.
A
ltern
atively
, air c
oolin
g c
apacity c
an b
e c
alc
ula
ted fro
m the form
ula
: A
ir c
oolin
g c
apacity Q
S =
1.0
85 x
Airfl
ow (c
fm) x
(TR
C-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
18°F
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
8°F
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
70°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 7
0°F
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(l/s
)(P
a)
(NC
)(W
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)
A0
14
43
≤15
17
00
.06
3.4
83
03
.30
.09
7.7
94
02
.50
.12
13
.89
80
1.9
0.0
45
.31
43
08
.60
.05
9.4
18
10
8.7
0.0
61
4.7
19
90
7.9
18
70
≤15
21
80
.06
3.4
99
04
.00
.09
7.7
11
20
3.0
0.1
21
3.8
11
70
2.3
0.0
45
.31
90
01
1.4
0.0
59
.42
41
01
1.5
0.0
61
4.7
26
50
10
.6
22
10
51
62
67
0.0
63
.41
11
04
.50
.09
7.7
12
70
3.4
0.1
21
3.8
13
20
2.6
0.0
45
.32
28
01
3.6
0.0
59
.42
88
01
3.8
0.0
61
4.7
31
70
12
.6
26
14
72
03
15
0.0
63
.41
22
05
.00
.09
7.7
13
90
3.8
0.1
21
3.8
14
50
2.9
0.0
45
.32
59
01
5.4
0.0
59
.43
27
01
5.6
0.0
61
4.7
36
00
14
.3
30
19
62
43
64
0.0
63
.41
31
05
.30
.09
7.7
14
90
4.0
0.1
21
3.8
15
60
3.1
0.0
45
.32
85
01
7.0
0.0
59
.43
61
01
7.2
0.0
61
4.7
39
70
15
.8
A1
19
51
≤15
23
00
.06
3.4
91
03
.70
.09
7.7
10
40
2.8
0.1
21
3.8
10
80
2.2
0.0
45
.31
78
01
0.6
0.0
59
.42
25
01
0.7
0.0
61
4.7
24
70
9.8
23
75
≤15
37
90
.06
3.4
10
70
4.4
0.0
97
.71
22
03
.30
.12
13
.81
27
02
.50
.04
5.3
21
40
12
.80
.05
9.4
27
10
13
.00
.06
14
.72
99
01
1.9
27
10
42
03
28
0.0
63
.41
20
04
.90
.09
7.7
13
60
3.7
0.1
21
3.8
14
20
2.8
0.0
45
.32
45
01
4.6
0.0
59
.43
10
01
4.8
0.0
61
4.7
34
10
13
.6
31
13
72
33
76
0.0
63
.41
31
05
.40
.09
7.7
14
90
4.1
0.1
21
3.8
15
60
3.1
0.0
45
.32
71
01
6.2
0.0
59
.43
43
01
6.4
0.0
61
4.7
37
70
15
.0
35
17
42
74
25
0.0
63
.41
41
05
.80
.09
7.7
16
10
4.4
0.1
21
3.8
16
70
3.3
0.0
45
.32
93
01
7.5
0.0
59
.43
71
01
7.7
0.0
61
4.7
40
80
16
.3
B1
28
55
17
34
00
.06
3.4
10
10
3.9
0.0
97
.71
15
03
.00
.12
13
.81
20
02
.40
.04
5.3
20
40
12
.20
.05
9.4
25
80
12
.30
.06
14
.72
83
01
1.3
33
76
21
40
00
.06
3.4
11
30
4.5
0.0
97
.71
28
03
.40
.12
13
.81
34
02
.70
.04
5.3
23
00
13
.80
.05
9.4
29
20
13
.90
.06
14
.73
21
01
2.8
38
10
12
54
61
0.0
63
.41
23
04
.90
.09
7.7
14
00
3.7
0.1
21
3.8
14
60
2.9
0.0
45
.32
54
01
5.1
0.0
59
.43
21
01
5.3
0.0
61
4.7
35
30
14
.1
43
12
92
85
22
0.0
63
.41
32
05
.30
.09
7.7
14
90
4.0
0.1
21
3.8
15
60
3.1
0.0
45
.32
74
01
6.4
0.0
59
.43
47
01
6.6
0.0
61
4.7
38
10
15
.2
48
16
13
15
82
0.0
63
.41
39
05
.60
.09
7.7
15
80
4.2
0.1
21
3.8
16
50
3.3
0.0
45
.32
92
01
7.4
0.0
59
.43
69
01
7.6
0.0
61
4.7
40
60
16
.2
C1
37
52
22
44
90
.06
3.4
10
80
4.1
0.0
97
.71
23
03
.10
.12
13
.81
28
02
.60
.04
5.3
22
70
13
.60
.05
9.4
28
80
13
.80
.06
14
.73
17
01
2.6
44
73
27
53
40
.06
3.4
12
10
4.6
0.0
97
.71
37
03
.50
.12
13
.81
43
02
.90
.04
5.3
24
90
14
.80
.05
9.4
31
50
15
.00
.06
14
.73
46
01
3.8
51
99
30
61
90
.06
3.4
13
20
5.0
0.0
97
.71
50
03
.80
.12
13
.81
56
03
.10
.04
5.3
26
70
16
.00
.05
9.4
33
80
16
.20
.06
14
.73
72
01
4.8
58
12
73
47
04
0.0
63
.41
41
05
.30
.09
7.7
16
00
4.1
0.1
21
3.8
16
70
3.3
0.0
45
.32
84
01
6.9
0.0
59
.43
59
01
7.1
0.0
61
4.7
39
50
15
.7
65
16
03
77
88
0.0
63
.41
49
05
.70
.09
7.7
16
90
4.3
0.1
21
3.8
17
70
3.5
0.0
45
.32
98
01
7.8
0.0
59
.43
78
01
8.0
0.0
61
4.7
41
50
16
.5
E1
48
50
26
58
20
.06
3.4
11
00
4.3
0.0
97
.71
25
03
.30
.12
13
.81
30
02
.60
.04
5.3
23
10
13
.80
.05
9.4
29
20
14
.00
.06
14
.73
21
01
2.8
58
72
31
70
40
.06
3.4
12
30
4.9
0.0
97
.71
40
03
.70
.12
13
.81
46
02
.90
.04
5.3
25
20
15
.10
.05
9.4
32
00
15
.30
.06
14
.73
51
01
4.0
68
99
35
82
50
.06
3.4
13
40
5.3
0.0
97
.71
52
04
.00
.12
13
.81
58
03
.20
.04
5.3
27
10
16
.20
.05
9.4
34
30
16
.40
.06
14
.73
78
01
5.0
76
13
13
99
46
0.0
63
.41
43
05
.70
.09
7.7
16
20
4.3
0.1
21
3.8
16
90
3.4
0.0
45
.32
88
01
7.2
0.0
59
.43
64
01
7.4
0.0
61
4.7
40
10
16
.0
88
16
64
21
06
70
.06
3.4
15
10
6.0
0.0
97
.71
72
04
.50
.12
13
.81
79
03
.60
.04
5.3
30
30
18
.10
.05
9.4
38
30
18
.30
.06
14
.74
22
01
6.8
F1
60
50
30
72
80
.06
3.4
11
60
4.6
0.0
97
.71
31
03
.40
.12
13
.81
37
02
.70
.04
5.3
23
30
13
.90
.05
9.4
29
50
14
.10
.06
14
.73
25
01
2.9
72
72
35
87
30
.06
3.4
12
70
5.0
0.0
97
.71
45
03
.80
.12
13
.81
51
03
.00
.04
5.3
25
50
15
.20
.05
9.4
32
30
15
.40
.06
14
.73
55
01
4.1
84
97
39
10
19
0.0
63
.41
37
05
.40
.09
7.7
15
60
4.1
0.1
21
3.8
16
20
3.2
0.0
45
.32
74
01
6.4
0.0
59
.43
47
01
6.6
0.0
61
4.7
38
10
15
.2
96
12
74
21
16
40
.06
3.4
14
60
5.7
0.0
97
.71
65
04
.40
.12
13
.81
72
03
.40
.04
5.3
29
00
17
.30
.05
9.4
36
70
17
.60
.06
14
.74
04
01
6.1
10
81
61
46
13
10
0.0
63
.41
53
06
.00
.09
7.7
17
40
4.6
0.1
21
3.8
18
10
3.6
0.0
45
.33
05
01
8.2
0.0
59
.43
86
01
8.4
0.0
61
4.7
42
40
16
.9
G1
70
53
34
84
90
.06
3.4
11
80
4.7
0.0
97
.71
34
03
.50
.12
13
.81
40
02
.80
.04
5.3
24
00
14
.30
.05
9.4
30
40
14
.50
.06
14
.73
34
01
3.3
82
73
38
99
50
.06
3.4
12
80
5.1
0.0
97
.71
46
03
.80
.12
13
.81
52
03
.00
.04
5.3
25
70
15
.40
.05
9.4
32
60
15
.60
.06
14
.73
58
01
4.3
94
95
41
11
40
0.0
63
.41
37
05
.40
.09
7.7
15
60
4.1
0.1
21
3.8
16
30
3.2
0.0
45
.32
73
01
6.3
0.0
59
.43
45
01
6.5
0.0
61
4.7
37
90
15
.1
10
61
21
44
12
86
0.0
63
.41
45
05
.70
.09
7.7
16
50
4.3
0.1
21
3.8
17
20
3.4
0.0
45
.32
86
01
7.1
0.0
59
.43
62
01
7.3
0.0
61
4.7
39
80
15
.9
11
81
50
47
14
31
0.0
63
.41
52
06
.00
.09
7.7
17
30
4.5
0.1
21
3.8
18
00
3.6
0.0
45
.32
98
01
7.8
0.0
59
.43
78
01
8.0
0.0
61
4.7
41
50
16
.5
H1
90
43
37
10
92
0.0
63
.41
29
05
.20
.09
7.7
14
70
3.9
0.1
21
3.8
15
30
3.0
0.0
45
.32
50
01
4.9
0.0
59
.43
16
01
5.1
0.0
61
4.7
34
80
13
.8
11
06
44
21
33
40
.06
3.4
13
80
5.5
0.0
97
.71
56
04
.20
.12
13
.81
63
03
.20
.04
5.3
26
50
15
.80
.05
9.4
33
60
16
.00
.06
14
.73
69
01
4.7
13
09
04
61
57
70
.06
3.4
14
50
5.8
0.0
97
.71
65
04
.40
.12
13
.81
72
03
.40
.04
5.3
27
90
16
.60
.05
9.4
35
30
16
.80
.06
14
.73
88
01
5.4
15
01
19
50
18
20
0.0
63
.41
51
06
.10
.09
7.7
17
20
4.6
0.1
21
3.8
17
90
3.6
0.0
45
.32
90
01
7.3
0.0
59
.43
68
01
7.6
0.0
61
4.7
40
40
16
.1
17
01
53
55
20
62
0.0
63
.41
57
06
.20
.09
7.7
17
80
4.8
0.1
21
3.8
18
60
3.7
0.0
45
.33
01
01
8.0
0.0
59
.43
81
01
8.2
0.0
61
4.7
41
90
16
.7
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
No
ise C
rite
ria
YK
-OH
AC
B-8
(2400m
m)
HE
AT
ING
(T
HW
S -
TR
H =
70
°F)
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=10°C
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
CO
OL
ING
(T
RC -
TC
HS =
18
°F)
14
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
10°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 1
0°C
.
A
ltern
ativ
ely,
air
cool
ing
capa
city
can
be
calc
ulat
ed fr
om th
e fo
rmul
a: A
ir co
olin
g ca
paci
ty W
= 1
.213
x A
irflow
(l/s
) x (T
RC-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
10°C
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
0°C
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
35°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 3
5°C
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(cfm
)(i
n.
w.c
.)(N
C)
(Btu
/hr)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
(gp
m)
(ft.
w.c
.)(B
tu/h
r)(°
F)
A0
36
0.1
6≤15
70
30
.95
1.4
13
17
37
1.4
33
.14
36
51
51
.90
5.5
93
95
84
0.6
32
.07
68
93
22
0.7
93
.68
87
11
22
0.9
55
.75
95
82
20
47
0.2
6≤15
91
10
.95
1.4
13
82
28
1.4
33
.14
44
02
61
.90
5.5
94
77
75
0.6
32
.07
91
28
29
0.7
93
.68
11
59
02
90
.95
5.7
51
27
26
27
57
0.3
9≤15
11
19
0.9
51
.41
43
33
91
.43
3.1
45
01
67
1.9
05
.59
54
25
60
.63
2.0
71
09
46
35
0.7
93
.68
13
82
43
50
.95
5.7
51
52
26
32
68
0.5
5≤15
13
24
0.9
51
.41
47
77
10
1.4
33
.14
55
28
81
.90
5.5
95
97
16
0.6
32
.07
12
42
33
90
.79
3.6
81
57
18
40
0.9
55
.75
17
30
93
6
78
0.7
41
71
53
20
.95
1.4
15
15
21
11
.43
3.1
45
93
78
1.9
05
.59
64
49
70
.63
2.0
71
36
73
43
0.7
93
.68
17
30
94
40
.95
5.7
51
90
51
40
A1
51
0.2
0≤15
99
30
.95
1.4
13
61
78
1.4
33
.14
41
63
61
.90
5.5
94
53
85
0.6
32
.07
85
22
27
0.7
93
.68
10
79
42
70
.95
5.7
51
18
93
25
61
0.3
0≤15
12
01
0.9
51
.41
42
31
91
.43
3.1
44
87
97
1.9
05
.59
52
89
60
.63
2.0
71
03
02
32
0.7
93
.68
13
02
93
30
.95
5.7
51
43
17
30
72
0.4
1≤15
14
06
0.9
51
.41
47
43
10
1.4
33
.14
54
94
81
.90
5.5
95
93
76
0.6
32
.07
11
74
13
70
.79
3.6
81
48
85
38
0.9
55
.75
16
36
23
4
83
0.5
4≤15
16
14
0.9
51
.41
51
86
11
1.4
33
.14
60
05
81
.90
5.5
96
48
37
0.6
32
.07
12
99
14
10
.79
3.6
81
64
38
41
0.9
55
.75
18
10
43
8
93
0.6
91
81
82
20
.95
1.4
15
56
21
21
.43
3.1
46
44
99
1.9
05
.59
69
95
70
.63
2.0
71
40
89
44
0.7
93
.68
17
83
94
50
.95
5.7
51
96
19
41
B1
72
0.2
0≤15
14
06
0.9
51
.41
41
97
91
.43
3.1
44
84
57
1.9
05
.59
52
55
60
.63
2.0
79
77
23
10
.79
3.6
81
23
85
31
0.9
55
.75
13
59
72
9
87
0.2
9≤15
16
96
0.9
51
.41
45
72
10
1.4
33
.14
52
89
71
.90
5.5
95
73
26
0.6
32
.07
11
05
93
50
.79
3.6
81
40
14
35
0.9
55
.75
15
41
53
2
10
20
.40
18
19
86
0.9
51
.41
49
13
10
1.4
33
.14
56
98
81
.90
5.5
96
17
66
0.6
32
.07
12
19
63
80
.79
3.6
81
54
15
39
0.9
55
.75
16
96
83
6
11
70
.53
22
22
76
0.9
51
.41
52
21
11
1.4
33
.14
60
39
81
.90
5.5
96
55
17
0.6
32
.07
13
14
34
10
.79
3.6
81
66
65
42
0.9
55
.75
18
29
43
8
13
10
.67
26
25
66
0.9
51
.41
54
94
12
1.4
33
.14
63
81
91
.90
5.5
96
89
37
0.6
32
.07
14
01
44
40
.79
3.6
81
77
25
45
0.9
55
.75
19
50
64
1
C1
10
60
.24
≤15
20
71
0.9
51
.41
43
33
91
.43
3.1
45
01
67
1.9
05
.59
54
59
60
.63
2.0
71
09
08
34
0.7
93
.68
13
82
43
50
.95
5.7
51
51
88
32
12
30
.32
20
24
02
0.9
51
.41
48
11
10
1.4
33
.14
55
62
81
.90
5.5
96
03
96
0.6
32
.07
11
93
13
80
.79
3.6
81
51
12
38
0.9
55
.75
16
62
73
5
14
00
.41
25
27
33
0.9
51
.41
52
21
11
1.4
33
.14
60
39
81
.90
5.5
96
55
17
0.6
32
.07
12
84
04
10
.79
3.6
81
62
48
41
0.9
55
.75
17
87
73
8
15
70
.52
28
30
64
0.9
51
.41
55
62
12
1.4
33
.14
64
49
91
.90
5.5
96
96
17
0.6
32
.07
13
59
74
30
.79
3.6
81
72
33
43
0.9
55
.75
18
97
54
0
17
40
.64
31
33
95
0.9
51
.41
58
69
12
1.4
33
.14
67
90
10
1.9
05
.59
73
70
80
.63
2.0
71
43
17
45
0.7
93
.68
18
14
24
60
.95
5.7
51
99
60
42
E1
13
10
.21
20
25
66
0.9
51
.41
44
02
91
.43
3.1
45
08
47
1.9
05
.59
55
28
60
.63
2.0
71
10
97
35
0.7
93
.68
14
05
23
50
.95
5.7
51
54
53
32
15
70
.29
24
30
64
0.9
51
.41
48
79
10
1.4
33
.14
56
64
81
.90
5.5
96
14
26
0.6
32
.07
12
12
03
80
.79
3.6
81
53
39
39
0.9
55
.75
16
89
23
6
18
20
.40
28
35
59
0.9
51
.41
52
89
11
1.4
33
.14
61
08
91
.90
5.5
96
65
47
0.6
32
.07
13
02
94
10
.79
3.6
81
64
76
42
0.9
55
.75
18
14
23
8
20
80
.52
31
40
57
0.9
51
.41
56
30
12
1.4
33
.14
65
17
91
.90
5.5
97
09
77
0.6
32
.07
13
82
44
40
.79
3.6
81
74
98
44
0.9
55
.75
19
24
04
0
23
30
.65
33
45
52
0.9
51
.41
59
71
13
1.4
33
.14
68
93
10
1.9
05
.59
74
73
80
.63
2.0
71
45
44
46
0.7
93
.68
18
40
74
60
.95
5.7
52
02
63
43
F1
15
90
.19
22
31
05
0.9
51
.41
45
38
10
1.4
33
.14
52
55
71
.90
5.5
95
69
86
0.6
32
.07
11
21
13
50
.79
3.6
81
41
65
36
0.9
55
.75
15
60
43
3
19
10
.28
27
37
26
0.9
51
.41
50
16
11
1.4
33
.14
58
01
81
.90
5.5
96
27
87
0.6
32
.07
12
27
13
90
.79
3.6
81
55
29
39
0.9
55
.75
17
04
43
6
22
20
.38
30
43
47
0.9
51
.41
53
91
11
1.4
33
.14
62
44
91
.90
5.5
96
75
67
0.6
32
.07
13
14
34
10
.79
3.6
81
66
65
42
0.9
55
.75
18
33
13
9
25
40
.50
34
49
68
0.9
51
.41
57
32
12
1.4
33
.14
66
20
91
.90
5.5
97
20
08
0.6
32
.07
13
93
84
40
.79
3.6
81
76
50
45
0.9
55
.75
19
39
24
1
28
60
.63
37
55
89
0.9
51
.41
60
39
13
1.4
33
.14
69
61
10
1.9
05
.59
75
75
80
.63
2.0
71
46
20
46
0.7
93
.68
18
52
14
70
.95
5.7
52
03
77
43
G1
18
20
.20
25
35
59
0.9
51
.41
45
72
10
1.4
33
.14
53
23
71
.90
5.5
95
76
76
0.6
32
.07
11
51
43
60
.79
3.6
81
45
82
37
0.9
55
.75
16
05
93
4
22
00
.29
30
43
06
0.9
51
.41
50
84
11
1.4
33
.14
58
69
81
.90
5.5
96
38
17
0.6
32
.07
12
34
73
90
.79
3.6
81
56
42
39
0.9
55
.75
17
19
53
6
25
90
.40
34
50
50
0.9
51
.41
54
94
12
1.4
33
.14
63
81
91
.90
5.5
96
89
37
0.6
32
.07
13
10
54
10
.79
3.6
81
65
51
42
0.9
55
.75
18
21
83
8
29
70
.53
38
57
94
0.9
51
.41
58
69
12
1.4
33
.14
67
90
10
1.9
05
.59
73
70
80
.63
2.0
71
37
49
43
0.7
93
.68
17
38
54
40
.95
5.7
51
91
27
40
33
50
.67
41
65
41
0.9
51
.41
61
76
13
1.4
33
.14
71
31
10
1.9
05
.59
77
46
80
.63
2.0
71
43
17
45
0.7
93
.68
18
14
24
60
.95
5.7
51
79
82
70
H1
25
40
.19
31
49
68
0.9
51
.41
51
86
11
1.4
33
.14
60
05
81
.90
5.5
96
51
77
0.6
32
.07
12
00
63
80
.79
3.6
81
51
88
38
0.9
55
.75
16
70
33
5
30
70
.28
37
60
02
0.9
51
.41
55
28
12
1.4
33
.14
63
81
91
.90
5.5
96
92
77
0.6
32
.07
12
72
64
00
.79
3.6
81
61
35
41
0.9
55
.75
17
72
53
7
36
00
.38
41
70
36
0.9
51
.41
58
01
12
1.4
33
.14
67
22
91
.90
5.5
97
26
88
0.6
32
.07
13
37
04
20
.79
3.6
81
69
30
43
0.9
55
.75
18
63
43
9
41
30
.50
43
80
70
0.9
51
.41
60
39
13
1.4
33
.14
69
95
10
1.9
05
.59
75
75
80
.63
2.0
71
39
38
44
0.7
93
.68
17
65
04
50
.95
5.7
51
94
30
41
46
60
.64
46
91
07
0.9
51
.41
62
44
13
1.4
33
.14
72
34
10
1.9
05
.59
78
48
80
.63
2.0
71
44
30
46
0.7
93
.68
18
29
44
60
.95
5.7
52
01
12
42
YK
-OH
AC
B-1
0 (
10')
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=50°F
CO
OL
ING
(T
RC -
TC
HS =
18
°F)
HE
AT
ING
(T
HW
S -
TR
H =
70
°F)
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
Ove
rhe
ad
Active C
hill
ed B
eam
PE
RF
OR
MA
NC
E D
ATA
AF
X-O
HA
CB
15 2-W
ay A
ir Fl
ow /
4-Pi
pe
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
20°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 2
0°F
.
A
ltern
atively
, air c
oolin
g c
apacity c
an b
e c
alc
ula
ted fro
m the form
ula
: A
ir c
oolin
g c
apacity Q
S =
1.0
85 x
Airfl
ow (c
fm) x
(TR
C-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
18°F
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
8°F
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
70°F
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 7
0°F
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
CO
OL
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
WA
TE
R
FL
OW
WA
TE
R
ΔP
WA
TE
R
HE
AT
ING
CA
PA
CIT
Y
ΔT
WA
TE
R
(l/s
)(P
a)
(NC
)(W
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)(l
/s)
(KP
a)
(W)
(°C
)
A0
17
39
≤15
20
60
.06
4.2
93
03
.70
.09
9.4
10
70
2.8
0.1
21
6.7
11
60
2.3
0.0
46
.21
82
01
0.8
0.0
51
12
30
01
1.0
0.0
61
7.2
25
30
10
.1
22
65
≤15
26
70
.06
4.2
11
20
4.5
0.0
99
.41
29
03
.40
.12
16
.71
40
02
.80
.04
6.2
24
10
14
.40
.05
11
30
60
14
.60
.06
17
.23
36
01
3.4
27
98
19
32
80
.06
4.2
12
70
5.1
0.0
99
.41
47
03
.90
.12
16
.71
59
03
.20
.04
6.2
28
90
17
.20
.05
11
36
50
17
.50
.06
17
.24
02
01
6.0
32
13
82
43
88
0.0
64
.21
40
05
.60
.09
9.4
16
20
4.3
0.1
21
6.7
17
50
3.5
0.0
46
.23
28
01
9.6
0.0
51
14
15
01
9.8
0.0
61
7.2
45
70
18
.2
37
18
52
84
49
0.0
64
.21
51
06
.00
.09
9.4
17
40
4.6
0.1
21
6.7
18
90
3.8
0.0
46
.23
61
02
1.6
0.0
51
14
57
02
1.8
0.0
61
7.2
50
30
20
.0
A1
24
51
≤15
29
10
.06
4.2
10
60
4.2
0.0
99
.41
22
03
.20
.12
16
.71
33
02
.60
.04
6.2
22
50
13
.50
.05
11
28
50
13
.60
.06
17
.23
14
01
2.5
29
75
19
35
20
.06
4.2
12
40
4.9
0.0
99
.41
43
03
.80
.12
16
.71
55
03
.10
.04
6.2
27
20
16
.20
.05
11
34
40
16
.40
.06
17
.23
78
01
5.1
34
10
22
34
12
0.0
64
.21
39
05
.50
.09
9.4
16
10
4.3
0.1
21
6.7
17
40
3.5
0.0
46
.23
10
01
8.5
0.0
51
13
93
01
8.8
0.0
61
7.2
43
20
17
.2
39
13
52
74
73
0.0
64
.21
52
06
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00
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02
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02
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0.0
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21
.1
YK
-OH
AC
B-1
0 (
3000m
m)
NO
ZZ
LE
PR
IMA
RY
AIR
FL
OW
PL
EN
UM
PR
ES
SU
RE
NO
ISE
CR
ITE
RIA
AIR
CO
OL
ING
CA
PA
CIT
Y
ΔT=10°C
CO
OL
ING
WA
TE
R F
LO
W 1
CO
OL
ING
WA
TE
R F
LO
W 2
CO
OL
ING
WA
TE
R F
LO
W 3
CO
OL
ING
(T
RC -
TC
HS =
10
°C)
HE
AT
ING
(T
HW
S -
TR
H =
35
°C)
HE
AT
ING
WA
TE
R F
LO
W 1
HE
AT
ING
WA
TE
R F
LO
W 2
HE
AT
ING
WA
TE
R F
LO
W 3
16
1) A
ir co
olin
g ca
paci
ties
are
base
d on
ΔT A
C =
TR
C-T
CS
A =
10°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
air c
oolin
g c
apacity b
y the
required (
TR
C-T
CS
A)
div
ided b
y 1
0°C
.
A
ltern
ativ
ely,
air
cool
ing
capa
city
can
be
calc
ulat
ed fr
om th
e fo
rmul
a: A
ir co
olin
g ca
paci
ty W
= 1
.213
x A
irflow
(l/s
) x (T
RC-T
CS
A).
2)
Wate
r coolin
g c
apacitie
s a
re b
ased o
n T
RC-T
CH
S =
10°C
. F
or
oth
er
conditio
ns m
ultip
ly the table
wate
r coolin
g c
apacity b
y the r
equired (
TR
C-T
CH
S)
div
ided b
y 1
0°C
.
3)
Wate
r heating c
apacitie
s a
re b
ased o
n 4
-pip
e c
hill
ed b
eam
s w
ith T
HW
S-T
RW =
35°C
. F
or
oth
er
conditio
ns, m
ultip
ly the table
wate
r heating c
apacity b
y the r
equired (
TH
WS-T
RW)
div
ided b
y 3
5°C
.
4) P
erfo
rman
ce ra
tings
are
sub
ject
to to
lera
nces
of p
lus/
min
us 5
%.
Overhead Active Chilled Beam
SELECTION EXAMPLE
Specified DataOffice (LxWxH):Occupants:
Occupant Load Per Person:
Summer Room Design Condition (TRS
):
Summer Primary Air Temperature (TCSA
):
Chilled Water Supply Temperature (TCHS
):
Summer Room Sensible Load:
Winter Room Design Condition (TRW
):
Heating Water Supply Temperature (THWS
):
Winter Supply Air Temperature (TAIR,H
):
Winter Room Heating Requirement:
Cooling Calculations1. Quantify ventilation requirements according to ASHRAE 62-2010:
• (4 people x 5 cfm) + (0.06 cfm/ft2 x 500 ft2) = 50 cfm
2. Calculate primary airflow rate to handle the latent cooling demand:
• QLatent
= Primary Air CFM (4840)(WRoom
- WPrimary
)
• Primary Air CFM =
• = = 97.8 cfm
Primary air flow rate needed to condition latent load = 98 cfm.
3. Sensible load of primary air:
• QS = 1.085 (98) (75F - 55F) = 2126 Btu/h
4. Temperature differences required to make cooling selection:
• ΔTAC
= TRC
- TCHS
= 75F - 55F = 20F
• ΔTWC
= TRC
- TCHS
= 75F - 57F = 18F
5. Capacities needed (two (2) units):
• Primary Air = 49 cfm ea.
• Total Capacity Needed = 8189 Btu/h / 2 = 4049 Btu/h ea.
• Air Sensible Cooling = 2126 Btu/h / 2 = 1063 Btu/h ea.
25' x 20' x 9' Area = 500 ft2
4
250 Btu/h Sensible / 155 Btu/h Latent
75°F db / 50% RH / 55°F dp / W=0.00924 lbs/lb55°F db / 51°F dp / W=0.00793 lbs/lb
57°F
8189 Btu/h
70°F db / 50% RH140°F db
55°F db
9212 Btu/h
17
QLatent––
4840 x (WRoom
- WPrimary
)
620 Btu/h––– 4840 x (0.00924 - 0.00793)
q = 500 gpm ΔT––
500 (gpm)
AFX-OHACB
18
Heating Calculations1. Using two (2) 8’ units:
• Primary Air = 49 cfm ea. @ 55°F db
• Total Heating Needed = 9212 Btu/h / 2 = 4606 Btu/h
2. Deficit due to primary air:
• QS = 1.085 (49 cfm)(55-70) = -797 Btu/h
3. Total heating needed from chilled beam:
• QT = 4606 Btu/h + 797 Btu/h = 5403 Btu/h
4. Unit selection:
• AFX-OHACB-8 with A1 air nozzle will deliver cooling capacity of:
1241 Btu/h air side @ 57 cfm / 4095 Btu/h water side @ 0.95 gpm
• AFX-OHACB-8 with A1 air nozzle will deliver heating capacity of:
8105 Btu/h water side @ 0.95 gpm
Overhead Active Chilled Beam
19
SELECTION SUMMARY
AFX-OHACB-8
Unit Size
Length x Width:
Room ConditionsCooling:
Heating:
Primary AirCooling EAT:
Heating EAT:
Air Volume Needed:
Unit Air Pressure Drop:
Sound Level:
Cooling
Chilled Water EWT:
Chilled Water LWT:
Water Volume:
Water Pressure Drop:
Air Sensible Cooling:
Water Sensible Cooling:
Total Sensible Cooling:
Heating
Hot Water EWT:
Hot Water LWT:
Water Flow:
Water Pressure Drop:
Air Heating Capacity:
Water Heating Capacity:
Total Heating Capacity:
8' x 24" / (2) 5"Ø Connection
75°F db / 50% RH70°F db / 50% RH
55°F db / 55°F dp
55 F db
98 cfm total / 49 cfm ea. unit
0.3 in. w.g.
≤ 15 NC
57°F
66°F
0.95 gpm
1.14 ft. w.g.
1214 Btu/h
4095 Btu/h
5336 Btu/h
140°F
111°F
0.63 gpm
1.8 ft. w.g.
-797 Btu/h
9279 Btu/h
8482 Btu/h
AFX-OHACB
20
GUIDE SPECIFICATIONS
AirFixture AFX-OHACB series active chilled beams shall be used to compensate for external and internal heat loads
of a building, and shall maintain thermal comfort in a room within specified comfort and noise criteria.
Functional Description● Primary air will be supplied by the central air handling unit to the chilled beam air plenum box. The primary air shall then pass through the induction nozzles into the mixing section to mix with the induced room air before being
distributed into the room by two slot supply diffusers.
● Induction nozzles shall induce air from the room through the inlet air diffuser and then through the fin and tube cooling/heating exchanger before mixing with the primary air and being supplied to the room. The size and quantity
of induction nozzles shall be factory installed to provide the required unit capacity with the specified primary air flow, air inlet pressure and noise level.
● Heat exchangers shall be 2-pipe type for cooling only or cooling/heating changeover systems or 4 pipe type for systems with separate cooling and heating circuits.
● The units shall incorporate two linear slot air supply diffusers and shall be designed so that the supply air is discharged horizontally across the ceiling using the Coandă effect to increase air throw of the units and ensure air mixing with the room air above the occupied zone. The inlet air diffuser for the room air shall be perforated or provided with linear bar air inlet grille and shall be easily removable for cleaning the heat exchanger and shall be
provided with safety hanging wires.
Construction of the Chilled Beam● The primary air plenum box shall be manufactured from galvanized sheet steel and shall have one or more round air connections. The plenum should be internally insulated to prevent condensation if the primary supply air
temperature is less than the surrounding air dew point.
● The nozzle plate and chilled beam body shall be manufactured from galvanized steel with a minimum thickness of 22 ga. (0.8mm).
● The heat exchangers shall be made from seamless copper tubes with aluminum fins and shall have 1/2" or 5/8"
(12mm or 15mm) diameter water connections depending on unit size and connections. Heat exchangers shall be
suitable to operate at 250 psi working pressure and shall be factory pressure tested at 300 psi pressure.
● The supply air diffuser and room air inlet diffuser shall be manufactured from galvanized steel with a minimum thickness of 20 ga. (1mm) and shall be finished with polyester powder paint to RAL9010 with 20% gloss or with an alternative finish to be specified.
● The active chilled beams shall be tested and rated in accordance with Standard EN15116.
InstallationThe active chilled beam shall include 9/32" (7mm) diameter mounting holes for suspension by 1/4" (6mm) diameter
threaded rod or suspension wires.
V160210
AirFixture ©2016 AirFixture, LLC 51 Kansas Avenue | Kansas City, KS 66105 | P: 913.312.1100 | F: 913.312.1105 | www.airfixture.com
