Series UH Unit Heater
Industrial heater with energy efficient EC axial fan Heating coils for LTHW, MTHW, HTHW and Steam
Comprehensive range of accessories Available in four sizes
Suitable for use with biomass boiler systems
2
CONTENTS Identification 2 Introduction Authority
Description 2 Unit Description Code Composition/Manufacture - Basic Unit Range - Casings and Heating Coils Range - Motors Range - Accessories and Options
Accessories 4 Performance 6 Heat Outputs Air Volume Flow Rates Leaving on Temperature Hydraulic Resistance Horizontal Application - Mounting Heights Horizontal Application - Air Throws Vertical Application - Air Throws Performance with Accessories Mass of components (kg) Coil Water Content Sound Power Levels Electrical Data
Application 15 General Selection Noise Level Air Stream Temperature Hydraulic Resistance Quantity and Size of Units Location Controls
Construction 16 Handling Storage Preparation Installation Details Pipe Work Connections Ductwork Connections Electrical Connections Wiring Diagrams Dimensions
Engineering Specification 22 Prices / Conditions of Sale 23 Supply 23
IDENTIFICATION
Introduction This Product Catalogue provides comprehensive information about Series UH Unit Heaters and guidance on selection, application, use and supply. Series UH Unit Heaters are intended to provide warm air heating in industrial buildings when used in conjunction with a pumped hot water or steam system. They are normally suspended at high level and may be used in the horizontal or vertical discharge mode.
Authority Dunham-Bush Limited operates a quality control system and is a registered firm of Assessed Capability to BS EN ISO 9001: 2008.
Unit Description Code Series UH Unit Heaters are identified by a simple description code which is used for specifying, ordering and manufacture. Full details are given in the SUPPLY - ordering section on page 23.
Composition/Manufacture Basic Unit Each basic unit heater is assembled from 1.6 mm mild steel casing panels, a heating coil constructed from copper tubes and aluminium fins, a discharge louvre assembly with individually adjustable blades and a fan plate assembly, comprising electric motor, axial fan and guard. A set of four hanging plates is supplied for site fixing to suit the required horizontal or vertical discharge application.
DESCRIPTION
Range - Casings and Heating Coils Series UH Unit Heaters are offered in four casing sizes, 1, 2, 3 and 4. Each casing is offered with a choice of four hot water coils, A, B, C and D and one steam coil S. Standard hot water coils have screwed connections but coils A and B can also be supplied with flanged connections. Standard steam coil has flanged connections.
Range - Fan Motors Series UH Unit Heaters have variable speed single phase energy efficient EC motors. Speed control is either via a potentiometer (remote of fitted) or via a 0-10V DC control signal by others.
Range - Accessories and Options A wide range of accessories and options are offered including wall/ceiling brackets, wide spread discharge, discharge cone, discharge nozzle, four sides discharge, inlet box, filter box, mixing box, flanged connections (hot water coils A and B), contactors, switches and thermostats. Note: When any discharge accessory is fitted, the standard discharge louvre assembly is omitted.
3
COMPOSITION - FEATURES
Diagram 1: Series UH standard features
Standard hanging plates
Optional LTC
Heating coil connections (Valves and pipework by others)
Coil access panel
Standard inlet guard
Axial Fan
Energy efficient EC Fan motor
Electrical connections and controls box
Standard discharge louvres
4
ACCESSORIES
Wall/Ceiling Brackets Wall/ceiling brackets are supplied loose for fixing to the
back/top of units on site. They facilitate mounting directly to a wall or ceiling, thus eliminating the need for drop rods. When wall/ceiling brackets are specified, hanging plates
are not supplied. Please note Wall/ceiling brackets are unsuitable for use with mixing boxes
Four Sides Discharge Four sides discharge is factory fitted and replaces the
standard adjustable louvre. It provides air discharge in four directions and has individually adjustable horizontal louvres which may be used to vary the air discharge angle. Please
note the four sided discharge is only suitable for rooms with low ceiling heights.
Wide Spread Discharge Wide spread discharge is factory fitted and replaces the standard adjustable discharge louvre. Wide spread discharge has two sets of individually adjustable louvres which allows a greater spread of air in both horizontal and vertical discharge applications.
Discharge Cone Discharge cone is factory fitted and replaces the standard adjustable discharge louvre. It is usually used for vertical discharge applications to increase air throw and thus mounting height.
5
ACCESSORIES
Discharge Nozzle Discharge nozzle is factory fitted and replaces the
standard adjustable louvre. Used for both horizontal and vertical discharge applications to increase air throw and
mounting height. It also provides angled discharge and is often used for door curtain applications.
Filter Box Filter box is factory fitted. It is complete with a washable
G3 panel filter in a metal frame and has removable panels for filter access. It provides filtration of room air and can
also be connected to an outside air duct.
Inlet Box Inlet box is factory fitted. It encloses the unit inlet and is complete with welded mesh inlet screen. It provides a connection for an outside air duct. Inlet box has removable panels for access to the motor/fan.
Mixing Box Mixing box is factory fitted. It is complete with two sets of inter-linked blades and has inlets for outside air duct connection and re-circulation with welded mesh screen. It has removable panels for access to motor/fan. Three mixing box options are offered:-
Manual actuator.
Electric actuator BELIMO or equal.
Extended spindle for electric actuator by others. Further accessories page 12
6
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
13
03
.79
24
.15
0.5
71
10
3.8
72
9.1
70
.32
Me
diu
m6
20
05
.24
21
.72
1.0
31
80
5.5
02
5.3
60
.69
Hig
h8
28
06
.99
20
.70
1.7
52
50
6.9
82
3.1
51
.07
Lo
w4
20
05
.56
23
.06
0.5
51
80
6.8
63
1.6
20
.95
Me
diu
m6
31
07
.81
20
.89
1.1
12
80
9.7
02
8.7
21
.82
Hig
h8
44
01
0.1
01
9.0
31
.80
40
01
3.0
82
7.1
23
.18
Lo
w4
45
01
2.7
02
3.4
02
.79
38
01
2.2
72
6.7
82
.50
Me
diu
m6
75
01
9.6
02
1.6
72
.17
66
01
9.4
52
4.4
42
.88
Hig
h8
10
40
26
.35
21
.01
3.7
69
30
27
.05
24
.12
3.4
7
Lo
w4
71
02
2.8
82
0.6
42
.56
62
02
5.0
53
3.5
13
.42
Me
diu
m6
11
50
34
.18
24
.65
5.4
21
05
06
8.6
83
0.5
45
.23
Hig
h8
16
50
44
.87
22
.55
5.8
01
49
05
0.9
92
0.3
88
.70
Lo
w4
13
02
.25
29
.32
0.2
01
10
2.4
63
3.5
80
.16
Me
diu
m6
20
02
.80
26
.64
0.2
71
80
3.2
42
9.9
50
.24
Hig
h8
28
03
.55
25
.51
0.5
02
50
3.8
12
7.6
40
.31
Lo
w4
20
03
.48
29
.43
0.2
51
80
4.1
83
4.2
60
.37
Me
diu
m6
31
04
.34
26
.63
0.3
62
80
5.3
73
0.9
10
.55
Hig
h8
44
05
.06
25
.51
0.4
64
00
7.0
32
9.5
81
.00
Lo
w4
45
06
.54
27
.06
0.7
73
80
6.8
72
9.9
80
.82
Me
diu
m6
75
09
.55
25
.56
1.6
46
60
10
.00
27
.57
1.7
1
Hig
h8
10
40
12
.36
28
.85
2.6
59
30
12
.83
26
.44
2.7
2
Lo
w4
71
01
2.3
62
9.4
42
.81
62
01
4.4
43
4.3
13
.90
Me
diu
m6
11
50
18
.01
27
.99
1.6
51
05
02
2.5
93
2.8
44
.82
Hig
h8
16
50
24
.45
27
.79
3.1
31
49
03
1.6
93
2.6
45
.28
Lo
w4
13
01
.80
31
.49
0.0
21
10
1.9
93
5.0
30
.12
Me
diu
m6
20
02
.23
29
.25
0.2
01
80
2.6
03
1.9
60
.18
Hig
h8
28
02
.60
27
.71
0.2
42
50
3.0
33
0.0
40
.22
Lo
w4
20
02
.79
31
.56
0.1
71
80
3.3
93
5.6
10
.26
Me
diu
m6
31
03
.44
29
.21
0.2
52
80
4.3
13
2.7
70
.39
Hig
h8
44
03
.99
27
.51
0.3
14
00
5.1
33
0.6
40
.51
Lo
w4
45
05
.20
29
.59
0.5
23
80
5.5
03
2.0
00
.56
Me
diu
m6
75
06
.45
27
.13
0.7
56
60
7.1
22
8.9
50
.88
Hig
h8
10
40
8.4
42
6.7
31
.30
93
09
.11
28
.12
1.4
3
Lo
w4
71
08
.52
29
.95
1.3
66
20
11
.05
34
.78
2.3
7
Me
diu
m6
11
50
12
.74
29
.18
1.5
01
05
01
6.5
43
3.0
62
.59
Hig
h8
16
50
17
.13
28
.61
2.3
21
49
02
2.9
63
2.7
82
.91
Ple
ase n
ote
coils
type A
and B
are
not
reccom
ended a
t th
ese o
pera
tin
g c
onditio
ns h
ence n
ot
show
n in
the t
able
above.
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
Heati
ng
Co
il / C
on
necti
on
typ
e
Ta
ble
1:
Un
it h
ea
ter
ou
tpu
ts L
PH
W 5
5/3
5°C
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
Typ
e D
/ S
cre
we
d o
nly
2 3 43
0°C 15°C 20°C
1 2 3 4 1 2 4 1
7
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
18
04
.68
21
.58
1.5
51
50
6.3
33
5.0
21
.86
13
07
.41
47
.26
1.8
51
10
7.2
65
4.7
61
.10
Me
diu
m6
27
06
.11
18
.76
2.5
32
30
8.5
73
0.9
03
.24
20
01
0.3
54
2.9
13
.43
18
01
1.1
05
1.1
22
.42
Hig
h8
37
07
.65
17
.14
3.8
33
10
10
.74
28
.72
4.9
12
80
13
.46
39
.86
5.5
72
50
14
.31
47
.47
3.9
0
Lo
w4
26
07
.01
22
.36
1.9
52
30
9.3
13
3.5
71
.69
20
01
1.5
14
7.7
22
.20
18
01
2.6
75
8.3
72
.87
Me
diu
m6
41
09
.48
19
.17
3.4
13
60
12
.97
29
.88
3.1
53
10
16
.39
43
.84
1.7
22
80
18
.21
53
.93
2.5
4
Hig
h8
57
01
2.0
11
7.4
65
.29
50
01
6.5
22
7.4
02
.36
44
02
1.2
44
0.0
32
.79
40
02
4.1
45
0.0
54
.27
Lo
w4
58
01
7.1
32
4.4
84
.95
52
02
0.7
43
3.0
72
.66
45
02
4.7
64
5.6
32
.50
38
02
3.8
55
2.0
52
.62
Me
diu
m6
88
02
3.1
42
1.8
18
.62
84
02
9.4
52
9.0
85
.10
75
03
6.2
84
0.1
15
.06
66
03
6.8
94
6.3
55
.90
Hig
h8
13
50
30
.07
18
.47
13
.96
12
30
38
.45
25
.92
6.3
11
04
04
6.9
83
7.4
66
.42
93
04
8.5
34
3.2
76
.62
Lo
w4
88
02
5.4
02
3.9
35
.86
83
03
3.1
53
3.1
28
.62
71
04
0.5
74
7.3
85
.09
62
04
2.7
85
7.2
16
.20
Me
diu
m6
14
00
35
.28
20
.90
10
.76
13
20
43
.63
29
.41
11
.38
11
50
58
.42
42
.13
7.1
61
05
06
5.7
05
1.8
81
1.7
8
Hig
h8
20
00
45
.00
18
.66
13
.78
18
80
59
.84
26
.39
20
.32
16
50
77
.43
39
.91
12
.00
14
90
87
.61
48
.46
19
.94
Lo
w4
18
03
.51
31
.19
0.9
11
50
4.8
24
1.6
41
.12
13
05
.61
50
.80
1.1
11
10
5.4
65
6.2
00
.65
Me
diu
m6
27
04
.56
29
.01
1.4
82
30
6.5
23
8.5
11
.96
20
07
.95
47
.96
2.1
01
80
8.3
75
3.5
71
.43
Hig
h8
37
05
.70
27
.76
2.2
23
10
8.1
53
6.8
02
.95
28
01
0.3
14
5.5
23
.40
25
01
0.9
85
1.4
22
.38
Lo
w4
26
05
.29
31
.86
1.1
62
30
6.7
13
9.1
90
.92
20
08
.54
50
.40
1.2
61
80
9.6
55
9.4
61
.72
Me
diu
m6
41
07
.12
29
.40
2.0
13
60
9.7
93
7.5
51
.86
31
01
2.4
64
8.3
42
.55
28
01
4.1
45
6.8
72
.52
Hig
h8
57
08
.99
28
.08
3.0
95
00
12
.46
35
.66
2.9
24
40
16
.23
45
.58
1.6
94
00
18
.69
53
.75
3.6
6
Lo
w4
58
01
2.9
83
3.5
64
.79
52
01
5.8
34
0.2
41
.61
45
01
9.1
15
0.2
11
.55
38
01
8.3
35
5.0
01
.60
Me
diu
m6
88
01
7.4
93
1.4
85
.14
84
02
2.3
93
7.1
03
.06
75
02
7.8
64
5.8
13
.11
66
02
8.4
45
0.7
33
.63
Hig
h8
13
50
22
.64
28
.91
8.2
71
23
02
9.1
43
6.6
45
.00
10
40
35
.99
43
.69
4.9
99
30
37
.30
48
.26
4.0
7
Lo
w4
88
01
9.2
83
3.1
73
.52
83
02
5.5
54
0.5
35
.34
71
03
1.4
95
1.7
73
.18
62
03
3.5
45
9.8
65
.74
Me
diu
m6
14
00
26
.29
30
.81
6.4
21
32
03
5.8
53
7.5
29
.96
11
50
45
.17
47
.57
6.2
11
05
05
1.2
95
5.5
08
.65
Hig
h8
20
00
33
.96
29
.08
10
.03
18
80
45
.90
35
.25
12
.49
16
50
59
.71
45
.01
7.4
51
49
06
8.2
35
2.9
01
2.6
2
Lo
w4
18
03
.03
34
.17
0.7
11
50
4.2
44
3.4
30
.89
13
04
.98
51
.76
0.8
91
10
4.8
85
6.7
70
.82
Me
diu
m6
27
04
.05
32
.44
1.1
92
30
5.8
44
1.0
51
.60
20
07
.15
49
.63
1.7
31
80
7.4
05
4.1
11
.14
Hig
h8
37
05
.05
31
.31
1.7
83
10
7.2
93
9.4
92
.40
28
09
.25
47
.40
2.7
92
50
9.8
65
2.7
01
.94
Lo
w4
26
04
.65
34
.85
0.9
22
30
5.8
64
1.1
20
.71
20
07
.55
51
.32
1.0
01
80
8.6
45
9.7
91
.40
Me
diu
m6
41
06
.34
32
.82
1.6
23
60
8.5
03
9.5
81
.43
31
01
0.9
74
9.3
62
.01
28
01
2.7
25
7.6
72
.89
Hig
h8
57
07
.99
31
.62
2.4
95
00
11
.11
38
.42
2.3
54
40
14
.55
47
.43
3.4
24
00
16
.86
54
.96
3.2
0
Lo
w4
58
01
1.6
03
5.5
93
.39
52
01
4.1
94
2.6
22
.47
45
01
7.2
25
1.7
21
.28
38
01
6.3
25
5.6
11
.29
Me
diu
m6
88
01
5.6
03
4.7
04
.17
84
02
0.0
33
9.7
83
.49
75
02
5.0
54
7.7
02
.50
66
02
5.6
15
2.1
82
.99
Hig
h8
13
50
20
.17
32
.39
6.6
91
23
02
6.0
33
7.5
54
.05
10
40
32
.31
45
.76
4.0
99
30
33
.55
49
.91
4.9
4
Lo
w4
88
01
7.2
53
6.2
52
.87
83
02
3.0
24
3.0
04
.40
71
02
8.4
55
3.2
32
.64
62
03
0.4
46
0.7
14
.80
Me
diu
m6
14
00
23
.83
34
.12
5.2
11
32
03
2.2
54
0.2
68
.20
11
50
40
.74
49
.38
5.1
31
05
04
6.4
45
6.6
87
.21
Hig
h8
20
00
30
.28
32
.55
8.1
11
88
04
1.2
53
8.1
91
0.2
71
65
05
3.7
94
7.0
36
.16
14
90
61
.74
54
.36
12
.17
2 3 4
0°C
1 2 3 4
15°C
1
20°C
1 2 3 4
Heati
ng
Co
il / C
on
necti
on
typ
e
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
Typ
e D
/ S
cre
we
d o
nly
Ta
ble
2:
Un
it h
ea
ter
ou
tpu
ts L
PH
W 8
0/6
0°C
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
8
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
18
05
.51
25
.40
7.4
61
50
7.1
83
9.6
98
.33
13
08
.22
52
.43
5.7
31
10
8.1
96
1.7
42
.72
Me
diu
m6
27
07
.25
22
.25
12
.37
23
09
.79
35
.30
11
.61
20
01
1.5
84
8.0
11
0.7
41
80
12
.34
56
.84
5.7
9
Hig
h8
37
09
.13
20
.47
16
.18
31
01
2.3
33
2.9
81
7.7
22
80
15
.15
44
.90
17
.61
25
01
6.0
45
3.2
19
.41
Lo
w4
26
08
.16
26
.02
6.7
52
30
10
.75
33
.76
3.8
12
00
12
.98
53
.83
4.0
21
80
13
.76
63
.37
5.3
9
Me
diu
m6
41
01
1.1
22
2.4
81
1.9
33
60
14
.99
34
.53
7.0
63
10
18
.41
49
.24
7.6
92
80
19
.91
58
.97
8.6
5
Hig
h8
57
01
4.1
72
0.6
11
8.6
65
00
19
.22
31
.87
9.3
04
40
24
.05
45
.32
9.7
34
00
26
.61
55
.16
14
.74
Lo
w4
58
01
9.7
22
8.1
92
0.6
85
20
23
.54
37
.54
9.0
94
50
27
.45
50
.58
9.9
03
80
26
.19
57
.15
7.5
6
Me
diu
m6
88
02
6.8
32
5.2
83
6.4
78
40
33
.72
33
.29
15
.89
75
04
0.6
24
4.9
11
7.9
06
60
40
.95
51
.54
14
.70
Hig
h8
13
50
35
.11
21
.56
57
.91
12
30
44
.32
29
.88
26
.30
10
40
52
.90
42
.18
27
.54
93
05
4.2
34
8.3
52
3.0
0
Lo
w4
88
02
9.1
52
7.4
72
2.0
18
30
36
.85
36
.81
27
.20
71
04
4.4
35
1.8
91
5.9
86
20
45
.89
61
.37
21
.51
Me
diu
m6
14
00
40
.80
24
.16
38
.13
13
20
52
.16
32
.77
49
.74
11
50
64
.53
46
.53
29
.30
10
50
71
.10
56
.15
44
.99
Hig
h8
20
00
52
.34
21
.70
58
.69
18
80
67
.23
29
.66
79
.14
16
50
86
.01
43
.22
47
.37
14
90
95
.34
53
.06
74
.14
Lo
w4
18
04
.33
34
.93
4.7
71
50
5.6
84
6.3
95
.40
13
06
.53
56
.67
5.2
31
10
6.5
26
4.1
83
.26
Me
diu
m6
27
05
.68
32
.43
7.8
32
30
7.7
34
2.8
89
.56
20
09
.19
53
.10
7.0
31
80
9.8
16
0.1
83
.79
Hig
h8
37
07
.14
31
.01
12
.05
31
09
.73
41
.01
11
.46
28
01
2.0
15
0.5
71
1.4
82
50
12
.72
57
.20
6.1
3
Lo
w4
26
06
.42
35
.47
5.9
42
30
8.4
94
5.6
02
.46
20
01
0.3
15
7.7
62
.62
18
01
0.9
96
5.6
43
.56
Me
diu
m6
41
08
.73
32
.66
7.6
43
60
11
.81
42
.20
4.5
43
10
14
.59
54
.04
4.9
92
80
15
.88
62
.01
7.0
3
Hig
h8
57
01
1.1
13
1.1
61
1.9
25
00
15
.12
40
.70
7.1
84
40
19
.03
50
.86
6.3
14
00
21
.18
58
.90
9.6
9
Lo
w4
58
01
5.5
43
7.2
21
4.7
25
20
18
.62
44
.69
5.8
94
50
21
.82
55
.21
6.4
83
80
20
.86
60
.51
4.9
6
Me
diu
m6
88
01
2.1
23
4.9
02
3.4
78
40
26
.61
41
.27
11
.41
75
03
2.2
25
0.6
21
1.6
96
60
32
.54
55
.89
9.6
3
Hig
h8
13
50
27
.59
31
.95
38
.39
12
30
34
.93
38
.55
16
.96
10
40
41
.90
48
.41
18
.95
93
04
3.0
45
3.3
81
6.1
0
Lo
w4
88
02
2.9
93
6.6
71
4.2
28
30
29
.26
44
.24
19
.34
71
03
5.4
05
6.3
51
0.5
36
20
36
.72
64
.11
14
.30
Me
diu
m6
14
00
32
.13
34
.03
24
.57
13
20
41
.37
40
.99
33
.62
11
50
51
.33
52
.01
19
.26
10
50
56
.79
59
.85
29
.85
Hig
h8
20
00
41
.17
32
.07
38
.78
18
80
53
.27
38
.50
51
.71
16
50
68
.32
49
.33
32
.53
14
90
76
.08
57
.34
49
.13
Lo
w4
18
03
.93
38
.11
3.9
91
50
5.1
84
8.6
34
.56
13
05
.97
58
.08
4.4
31
10
5.9
76
5.0
02
.76
Me
diu
m6
27
05
.15
35
.83
6.5
92
30
7.0
54
5.4
08
.05
20
08
.39
54
.79
5.9
51
80
8.9
66
1.2
83
.21
Hig
h8
37
06
.48
34
.53
10
.07
31
08
.86
43
.70
9.6
62
80
10
.96
52
.46
9.7
12
50
11
.62
53
.53
5.1
8
Lo
w4
26
05
.84
38
.62
4.9
82
30
77
3.0
04
7.8
84
.35
20
09
.42
59
.07
2.2
11
80
10
.07
65
.40
3.0
3
Me
diu
m6
41
07
.94
36
.05
6.4
13
60
10
.75
44
.76
5.8
13
10
13
.32
55
.63
4.2
12
80
14
.53
63
.02
5.9
6
Hig
h8
57
01
0.0
83
4.6
99
.99
50
01
3.7
54
2.8
16
.02
44
01
7.3
65
2.7
16
.89
40
01
9.3
76
0.1
58
.22
Lo
w4
58
01
4.1
54
0.2
41
2.3
95
20
16
.97
47
.07
6.5
94
50
19
.94
56
.74
5.4
93
80
19
.09
61
.65
4.2
1
Me
diu
m6
88
01
9.2
23
8.1
11
9.7
38
40
24
.25
43
.94
9.6
07
50
29
.42
52
.52
11
.26
66
02
9.7
45
7.3
69
.56
Hig
h8
13
50
25
.09
35
.41
32
.22
12
30
31
.80
41
.44
14
.27
10
40
28
.24
50
.49
16
.01
93
03
9.3
15
5.0
51
3.6
3
Lo
w4
88
01
0.7
43
9.7
31
1.9
78
30
26
.74
46
.71
16
.38
71
03
2.3
95
7.8
38
.94
62
03
3.6
76
5.0
41
2.2
1
Me
diu
m6
14
00
29
.24
37
.32
22
.15
13
20
37
.77
43
.73
28
.46
11
50
46
.92
53
.84
17
.68
10
50
52
.05
61
.10
25
.46
Hig
h8
20
00
37
.45
35
.53
32
.58
18
80
48
.62
41
.45
45
.18
16
50
62
.43
51
.37
27
.57
14
90
69
.65
58
.76
43
.33
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
20°C
1 2 3 4
Ta
ble
3:
Un
it h
ea
ter
ou
tpu
ts L
PH
W 8
0/7
0°C
2 3
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
4
15°C
1 2 3 4
0°C
1
Typ
e D
/ S
cre
we
d o
nly
He
ati
ng
Co
il / C
on
ne
cti
on
typ
e
9
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
18
07
.21
33
.24
3.2
81
50
9.4
95
2.4
53
.73
13
01
0.9
36
9.7
43
.63
11
01
0.9
48
2.5
02
.27
Me
diu
m6
27
09
.46
29
.06
5.4
12
30
12
.91
46
.54
6.5
92
00
15
.37
63
.72
4.8
51
80
16
.43
75
.68
2.6
3
Hig
h8
37
01
1.9
12
6.6
98
.28
31
01
6.2
34
3.4
27
.89
28
02
0.0
05
9.4
67
.92
25
02
1.3
07
0.6
34
.25
Lo
w4
26
01
0.7
03
4.1
34
.09
23
01
4.1
85
1.1
13
.58
20
01
7.2
77
1.5
81
.82
18
01
8.4
58
4.9
72
.48
Me
diu
m6
41
01
4.5
52
9.4
37
.23
36
01
9.7
14
5.4
13
.13
31
02
4.4
06
5.2
63
.45
28
02
6.6
07
8.7
94
.88
Hig
h8
57
01
8.5
22
6.9
48
.19
50
02
5.2
34
1.8
44
.95
44
03
1.8
25
9.9
65
.66
40
03
5.4
67
3.5
28
.31
Lo
w4
58
02
5.9
33
7.0
79
.26
52
03
1.0
94
9.5
75
.41
45
03
6.5
16
7.2
76
.31
38
03
4.9
67
6.2
85
.13
Me
diu
m6
88
03
5.2
23
3.7
91
7.8
48
40
44
.42
43
.85
7.8
67
50
53
.86
59
.55
9.2
06
60
54
.46
68
.42
7.8
2
Hig
h8
13
50
45
.99
28
.25
26
.37
12
30
58
.28
39
.29
12
.99
10
40
70
.03
55
.83
13
.07
93
07
2.0
06
4.2
01
1.1
3
Lo
w4
88
03
8.3
53
6.1
49
.78
83
04
8.8
84
8.8
31
3.3
27
10
59
.25
69
.20
8.7
86
20
61
.60
82
.38
9.9
3
Me
diu
m6
14
00
53
.57
31
.73
18
.11
13
20
69
.06
43
.38
23
.12
11
50
85
.83
61
.89
14
.40
10
50
95
.18
75
.17
22
.02
Hig
h8
20
00
68
.64
28
.46
26
.64
18
80
88
.90
39
.21
36
.72
16
50
11
4.2
05
7.3
92
2.4
41
49
01
27
.36
70
.88
35
.19
Lo
w4
18
06
.03
42
.78
2.3
51
50
7.9
95
9.1
52
.71
13
09
.24
73
.96
2.6
61
10
9.2
78
4.9
01
.67
Me
diu
m6
27
07
.90
39
.25
3.8
72
30
10
.85
54
.12
4.7
82
00
12
.97
68
.77
4.9
81
80
13
.88
78
.96
3.5
5
Hig
h8
37
09
.92
37
.24
5.9
13
10
13
.63
51
.45
7.2
92
80
16
.92
65
.11
5.7
92
50
17
.97
74
.60
3.1
0
Lo
w4
26
08
.96
43
.58
2.9
42
30
11
.91
57
.93
1.5
82
00
14
.59
75
.48
3.3
21
80
15
.67
87
.18
1.8
3
Me
diu
m6
41
01
2.1
73
9.6
15
.18
36
01
6.5
35
3.0
82
.26
31
02
0.5
97
0.0
83
.52
28
02
2.5
68
1.8
23
.60
Hig
h8
57
01
5.4
73
7.5
05
.87
50
02
1.1
35
0.0
43
.56
44
02
6.7
96
5.4
94
.11
40
03
0.0
27
7.2
36
.10
Lo
w4
58
02
1.7
64
6.1
07
.33
52
02
6.1
65
6.7
13
.92
45
03
0.8
67
1.8
74
.61
38
02
9.6
17
9.6
23
.76
Me
diu
m6
88
02
9.5
14
2.8
11
2.8
78
40
37
.32
51
.84
5.6
97
50
45
.44
65
.24
6.7
26
60
46
.03
72
.83
5.7
3
Hig
h8
13
50
38
.49
38
.64
18
.99
12
30
48
.89
47
.96
9.3
91
04
05
1.0
96
2.0
51
0.9
09
30
60
.78
69
.19
9.5
8
Lo
w4
88
03
2.2
04
5.3
48
.69
83
04
1.2
85
6.2
49
.77
71
05
0.2
17
3.6
46
.46
62
05
2.4
28
5.1
18
.57
Me
diu
m6
14
00
44
.91
41
.60
13
.08
13
20
58
.25
51
.59
18
.38
11
50
72
.60
67
.35
10
.58
10
50
80
.83
78
.84
16
.33
Hig
h8
20
00
57
.47
38
.83
20
.62
18
80
74
.92
48
.05
26
.85
16
50
96
.49
63
.49
17
.86
14
90
10
8.0
47
5.1
32
6.0
6
Lo
w4
18
05
.63
45
.96
2.0
81
50
7.4
96
1.3
82
.41
13
08
.68
75
.36
2.3
61
10
8.7
18
5.6
81
.48
Me
diu
m6
27
07
.37
42
.65
3.4
12
30
10
.16
56
.64
4.2
32
00
12
.17
70
.46
4.4
21
80
13
.04
80
.05
2.1
5
Hig
h8
37
09
.26
40
.76
5.2
03
10
12
.76
54
.13
6.4
52
80
15
.87
66
.99
5.1
52
50
16
.86
75
.92
2.7
6
Lo
w4
26
08
.38
46
.73
2.6
02
30
11
.15
60
.21
2.2
82
00
13
.70
76
.78
2.9
41
80
14
.74
87
.92
3.6
7
Me
diu
m6
41
01
1.3
74
3.0
04
.57
36
01
5.4
75
5.6
42
.00
31
01
9.3
27
1.6
73
.24
28
02
1.2
18
2.8
14
.21
Hig
h8
57
01
4.4
54
1.0
25
.14
50
01
9.7
75
2.7
83
.14
44
02
5.1
26
7.3
33
.64
40
02
8.2
07
8.4
75
.44
Lo
w4
58
02
0.3
74
9.1
26
.49
52
02
6.4
65
7.8
24
.00
45
02
8.9
97
3.4
24
.11
38
02
7.8
38
0.7
33
.35
Me
diu
m6
88
02
7.6
14
6.0
21
1.3
88
40
34
.95
54
.50
6.7
37
50
42
.64
67
.14
5.9
76
60
43
.20
74
.28
5.1
0
Hig
h8
13
50
35
.99
42
.10
15
.56
12
30
45
.77
50
.85
8.3
11
04
05
5.3
46
4.1
39
.68
93
05
7.0
37
0.8
58
.52
Lo
w4
88
03
0.1
54
8.4
17
.69
83
03
8.7
55
8.7
18
.70
71
04
7.1
97
5.1
15
.76
62
05
2.4
28
5.1
18
.57
Me
diu
m6
14
00
42
.03
44
.89
11
.58
13
20
54
.65
54
.33
16
.35
11
50
68
.19
69
.17
9.4
31
05
08
0.8
37
8.8
41
6.3
3
Hig
h8
20
00
53
.76
42
.29
18
.23
18
80
70
.26
50
.99
28
.87
16
50
.90
.58
65
.52
15
.90
14
90
10
8.0
47
5.1
32
6.0
6
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
Typ
e D
/ S
cre
we
d o
nly
1
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
Ta
ble
4:
Un
it h
ea
ter
ou
tpu
ts L
PH
W 1
10
/9
0°C
0°C 20°C15°C
1 2 3 4 4
He
ati
ng
Co
il / C
on
ne
cti
on
typ
e
2 3 4 1 2 3
10
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
18
08
.05
37
.09
3.9
61
50
10
.53
58
.20
4.4
61
30
12
.10
77
.17
4.3
2
Me
diu
m6
27
01
0.5
73
2.4
66
.56
23
01
4.3
45
1.7
17
.91
20
01
7.0
37
0.5
95
.77
Hig
h8
37
01
3.3
12
9.8
41
0.0
53
10
18
.05
48
.28
9.4
52
80
22
.26
65
.93
9.4
4
Lo
w4
26
01
1.9
23
8.0
24
.93
23
01
5.7
55
6.8
02
.04
20
01
9.1
17
9.2
42
.17
Me
diu
m6
41
01
6.2
33
2.8
36
.33
36
02
1.9
45
0.5
33
.77
31
02
7.0
67
2.3
74
.14
Hig
h8
57
02
0.6
73
0.0
79
.89
50
02
8.1
04
6.6
15
.97
44
03
5.3
06
6.5
36
.80
Lo
w4
58
02
8.8
44
1.2
31
2.1
75
20
34
.51
55
.03
6.5
04
50
40
.39
74
.42
5.3
4
Me
diu
m6
88
03
9.2
13
6.9
51
9.3
98
40
49
.37
48
.74
9.4
47
50
59
.67
65
.97
10
.98
Hig
h8
13
50
51
.26
31
.48
31
.77
12
30
64
.83
43
.71
14
.01
10
40
77
.64
61
.90
15
.59
Lo
w4
88
04
2.6
44
0.1
71
1.7
38
30
54
.08
54
.03
15
.81
71
06
5.4
37
6.4
28
.62
Me
diu
m6
14
00
59
.62
35
.31
21
.78
13
20
76
.47
48
.04
27
.47
11
50
94
.90
68
.43
17
.09
Hig
h8
20
00
76
.45
31
.69
32
.05
18
80
98
.51
43
.45
42
.25
16
50
12
6.3
66
3.5
02
6.6
4
Lo
w4
18
06
.86
46
.61
2.9
51
50
9.0
36
4.8
93
.36
13
01
0.4
18
1.3
83
.27
Me
diu
m6
27
09
.00
42
.64
4.8
72
30
12
.28
59
.27
5.9
32
00
14
.63
75
.64
6.1
4
Hig
h8
37
01
1.3
24
0.3
87
.45
31
01
5.4
45
6.3
07
.09
28
01
9.1
17
1.5
87
.13
Lo
w4
26
01
0.1
84
7.4
63
.68
23
01
3.4
96
3.6
23
.23
20
01
6.4
38
3.1
41
.64
Me
diu
m6
41
01
3.8
44
2.9
96
.51
36
01
8.7
55
8.1
92
.82
31
02
3.2
47
7.1
53
.12
Hig
h8
57
01
7.6
14
0.6
27
.36
50
02
4.0
05
4.8
04
.45
44
03
0.2
87
2.0
65
.10
Lo
w4
58
02
4.6
65
0.2
59
.11
52
02
9.5
76
2.1
64
.87
45
03
4.7
47
9.0
25
.69
Me
diu
m6
88
03
3.4
94
6.5
61
6.0
48
40
42
.25
56
.71
7.0
77
50
51
.25
71
.66
8.2
9
Hig
h8
13
50
43
.73
41
.86
23
.71
12
30
55
.43
52
.37
11
.69
10
40
66
.62
68
.12
11
.76
Lo
w4
88
03
6.4
74
9.3
71
0.8
18
30
46
.48
61
.44
11
.98
71
05
6.3
98
0.8
57
.91
Me
diu
m6
14
00
50
.94
45
.17
16
.29
13
20
65
.67
56
.25
20
.78
11
50
81
.66
73
.88
12
.96
Hig
h8
20
00
65
.26
42
.06
23
.95
18
80
84
.53
52
.28
33
.00
16
50
10
8.6
46
9.6
02
0.1
8
Lo
w4
18
06
.47
49
.79
2.6
41
50
8.5
26
7.1
23
.02
13
09
.84
82
.78
2.9
5
Me
diu
m6
27
08
.48
46
.03
4.3
62
30
11
.59
61
.79
5.3
32
00
13
.83
77
.32
5.5
4
Hig
h8
37
01
0.6
64
3.8
96
.66
31
01
4.5
75
8.9
88
.14
28
01
8.0
57
3.4
06
.43
Lo
w4
26
09
.60
50
.61
3.3
02
30
12
.73
65
.90
2.9
02
00
15
.54
84
.44
1.4
8
Me
diu
m6
41
01
3.0
44
6.3
85
.83
36
01
7.6
96
0.7
52
.53
31
02
1.2
67
8.7
42
.81
Hig
h8
57
01
6.5
94
4.1
46
.60
50
02
2.6
35
7.5
33
.99
44
02
8.6
07
3.8
94
.59
Lo
w4
58
02
3.2
75
3.2
68
.18
52
02
7.9
36
4.5
34
.38
45
03
2.8
68
0.5
65
.13
Me
diu
m6
88
03
1.5
94
9.7
71
4.4
08
40
39
.88
59
.37
6.3
67
50
48
.44
73
.55
7.4
7
Hig
h8
13
50
41
.23
45
.32
21
.27
12
30
52
.29
55
.25
10
.50
10
40
62
.95
70
.19
10
.60
Lo
w4
88
03
4.4
25
2.4
39
.71
83
04
3.9
56
3.9
01
0.8
07
10
53
.37
82
.33
7.1
4
Me
diu
m6
14
00
48
.05
48
.46
14
.62
13
20
62
.06
58
.98
18
.74
11
50
77
.25
75
.70
11
.70
Hig
h8
20
00
61
.53
45
.51
21
.49
18
80
79
.87
55
.23
29
.74
16
50
10
2.7
37
1.6
31
8.2
2
Ple
ase n
ote
coils
type D
is n
ot
reccom
ended a
t th
ese o
pera
tin
g c
onditio
ns h
ence n
ot
show
n in
the t
able
above.
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessories p
lease c
onta
ct
Dunham
-Bush.
1 2 3 4
Ta
ble
5:
Un
it h
ea
ter
ou
tpu
ts M
TH
W 1
20
/1
00
°C
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
Typ
e D
/ S
cre
we
d o
nly
Heati
ng
Co
il / C
on
necti
on
typ
e
20°C
1 2 3 4
0°C 15°C
41 2 3
11
PERFORMANCE
Air on Temperature
Bas
ic
Un
it S
ize
Fa
n
Sp
ee
d
Fa
n
Co
ntr
ol
Vo
lta
ge
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Hyd. Res. kPa
Lo
w4
18
08
.99
41
.41
2.2
51
50
11
.86
65
.55
2.5
8
Me
diu
m6
27
01
1.7
83
6.1
83
.72
23
01
6.1
25
8.1
24
.55
Hig
h8
37
01
4.8
23
3.2
15
.68
31
02
0.2
65
4.2
06
.95
Lo
w4
26
01
3.3
44
2.5
42
.81
23
01
7.7
16
3.8
42
.48
Me
diu
m6
41
01
8.1
33
6.6
64
.97
36
02
4.6
05
6.6
72
.16
Hig
h8
57
02
3.0
63
3.5
45
.62
50
03
1.4
75
2.1
93
.41
Lo
w4
58
03
2.3
44
6.2
46
.98
52
03
8.8
46
1.9
43
.74
Me
diu
m6
88
04
3.9
14
1.3
72
.29
84
05
5.4
65
4.7
45
.43
Hig
h8
13
50
57
.29
35
.19
18
.13
12
30
72
.70
49
.01
8.9
6
Lo
w4
88
04
6.2
94
3.6
27
.53
83
05
9.5
15
9.4
58
.41
Me
diu
m6
14
00
64
.81
38
.39
11
.32
13
20
83
.99
52
.76
15
.84
Hig
h8
20
00
82
.33
34
.13
17
.61
18
80
10
7.8
84
7.5
82
2.9
7
Lo
w4
18
07
.80
50
.94
1.7
41
50
10
.35
72
.24
2.0
1
Me
diu
m6
27
01
0.2
14
6.3
62
.85
23
01
4.0
66
5.6
83
.53
Hig
h8
37
01
2.8
34
3.7
54
.35
31
01
7.6
56
2.2
25
.39
Lo
w4
26
01
1.6
05
1.9
82
.17
23
01
5.4
47
0.6
51
.92
Me
diu
m6
41
01
5.7
44
6.8
33
.83
36
02
1.4
16
4.3
33
.54
Hig
h8
57
02
0.0
04
4.1
05
.97
50
02
7.3
66
0.3
82
.63
Lo
w4
58
02
8.1
65
5.2
65
.41
52
03
3.9
06
9.0
62
.91
Me
diu
m6
88
03
8.1
95
0.9
99
.49
84
04
8.3
46
2.7
25
.63
Hig
h8
13
50
49
.78
45
.57
15
.49
12
30
63
.30
57
.67
6.9
3
Lo
w4
88
04
0.2
85
2.9
65
.82
83
05
2.0
76
7.0
28
.39
Me
diu
m6
14
00
56
.33
48
.37
8.7
31
32
07
3.4
16
1.1
11
2.3
7
Hig
h8
20
00
71
.49
44
.64
13
.59
18
80
94
.21
56
.55
17
.92
Lo
w4
18
07
.41
54
.11
1.5
81
50
9.8
57
4.4
61
.83
Me
diu
m6
27
09
.69
49
.76
2.5
92
30
13
.37
68
.19
3.2
2
Hig
h8
37
01
2.1
74
7.2
73
.95
31
01
6.7
86
4.8
94
.91
Lo
w4
26
01
1.0
25
5.1
31
.97
23
01
4.6
87
2.9
21
.74
Me
diu
m6
41
01
4.9
45
0.2
23
.47
36
02
0.3
56
6.8
82
.23
Hig
h8
57
01
8.9
84
7.6
15
.42
50
02
5.9
96
3.1
12
.39
Lo
w4
58
02
6.7
75
8.2
74
.93
52
03
2.2
67
1.4
42
.65
Me
diu
m6
88
03
6.2
85
4.1
98
.64
84
04
5.9
66
5.3
75
.12
Hig
h8
13
50
47
.27
49
.04
14
.08
12
30
60
.17
60
.56
6.3
1
Lo
w4
88
03
8.2
85
6.0
75
.29
83
05
0.9
77
0.9
28
.35
Me
diu
m6
14
00
53
.50
51
.69
9.8
51
32
07
1.8
56
5.1
41
2.4
1
Hig
h8
20
00
67
.88
48
.14
12
.32
18
80
92
.35
60
.73
18
.10
Ple
ase n
ote
coils
type C
and D
are
not
reccom
ended a
t th
ese o
pera
tin
g c
onditio
ns h
ence n
ot
show
n in
the t
able
above.
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
Ta
ble
6:
Un
it h
ea
ter
ou
tpu
ts H
TH
W 1
40
/1
10
°C
Typ
e D
/ S
cre
we
d o
nly
Heati
ng
Co
il / C
on
necti
on
typ
e
2
Typ
e A
/ S
cre
we
d o
r F
lan
ge
dT
yp
e B
/ S
cre
we
d o
r F
lan
ge
dT
yp
e C
/ S
cre
we
d o
nly
0°C
1 2 3 4
20°C
1
15°C
1 2 3 4 3 4
12
PERFORMANCE
Air on Temperature
Ba
sic
Un
it S
ize
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Air Vol Flow Rate
l/s
Output kW
L.A.T. °C
Lo
w1
80
6.7
23
0.9
41
80
7.3
53
3.8
71
80
8.2
83
8.1
61
80
9.5
34
3.9
11
80
10
.43
48
.06
Me
diu
m2
70
8.7
62
6.7
12
70
9.6
02
9.5
02
70
10
.83
33
.26
27
01
2.4
73
8.3
02
70
13
.66
41
.95
Hig
h3
70
10
.99
24
.63
37
01
2.0
52
7.0
13
70
13
.61
30
.49
37
01
5.6
83
5.1
43
70
17
.18
38
.50
Lo
w2
60
9.9
03
1.5
82
60
10
.90
34
.77
26
01
2.3
53
9.4
02
60
14
.28
45
.55
26
01
5.6
84
9.9
9
Me
diu
m4
10
13
.34
26
.98
41
01
4.7
22
9.7
64
10
16
.70
33
.78
41
01
9.3
33
9.1
04
10
21
.24
42
.95
Hig
h5
70
16
.86
24
.53
57
01
8.6
22
7.0
95
70
21
.17
30
.79
57
02
4.5
33
5.6
85
70
26
.96
39
.22
Lo
w5
80
22
.64
32
.37
58
02
4.8
73
5.5
65
80
28
.12
40
.21
58
03
2.4
54
6.3
95
80
35
.58
50
.86
Me
diu
m8
80
30
.49
28
.73
88
03
3.5
53
1.6
18
80
37
.98
35
.79
88
04
3.8
74
1.3
48
80
48
.13
45
.36
Hig
h1
35
03
8.3
42
3.5
51
35
04
2.2
42
5.9
51
35
04
7.8
82
9.4
11
35
05
5.3
73
4.0
11
35
06
0.7
83
7.3
4
Lo
w8
80
32
.50
30
.62
88
03
5.5
53
3.4
98
80
40
.02
37
.71
88
04
6.0
14
3.3
68
80
50
.34
47
.44
Me
diu
m1
40
04
5.1
12
6.7
21
40
04
9.4
12
9.2
71
40
05
5.6
93
2.9
81
40
06
4.0
93
7.9
61
40
07
0.1
64
1.5
6
Hig
h2
00
05
7.1
02
3.6
82
00
06
2.5
92
5.9
52
00
07
0.6
12
9.2
72
00
08
1.3
23
3.7
22
00
08
9.0
73
6.9
3
Lo
w1
80
5.7
04
1.2
71
80
6.3
44
4.1
91
80
7.2
64
8.4
61
80
8.5
15
4.2
01
80
9.4
15
8.3
4
Me
diu
m2
70
7.4
33
7.8
22
70
8.2
74
0.3
92
70
9.4
94
4.1
52
70
11
.13
49
.17
27
01
2.3
15
2.8
1
Hig
h3
70
9.3
13
5.8
63
70
10
.37
38
.23
37
01
1.9
14
1.7
03
70
12
.39
48
.47
37
01
5.4
84
9.6
9
Lo
w2
60
8.3
44
1.6
12
60
9.3
44
4.7
82
60
10
.78
49
.39
26
01
2.7
05
5.5
12
60
14
.09
59
.95
Me
diu
m4
10
11
.22
37
.69
41
01
2.5
84
0.4
44
10
14
.55
44
.44
41
01
7.1
84
9.7
44
10
19
.07
53
.58
Hig
h5
70
14
.15
35
.59
57
01
5.9
03
8.1
35
70
18
.43
41
.80
57
02
1.7
74
6.6
75
70
24
.20
50
.20
Lo
w5
80
19
.14
42
.36
58
02
1.3
54
5.5
35
80
24
.59
50
.15
58
02
8.9
05
6.3
25
80
32
.02
60
.78
Me
diu
m8
80
25
.72
39
.24
88
02
8.7
54
2.0
98
80
33
.17
46
.25
88
03
9.0
45
1.7
98
80
43
.29
55
.79
Hig
h1
35
03
2.2
93
4.8
41
35
03
6.1
63
7.2
11
35
04
1.7
74
0.6
61
35
04
9.2
34
5.2
41
35
05
4.6
34
8.5
6
Lo
w8
80
27
.63
41
.03
88
03
0.6
64
3.8
98
80
35
.12
48
.09
88
04
1.1
05
3.7
38
80
45
.32
57
.80
Me
diu
m1
40
03
8.2
93
7.6
81
40
04
2.5
64
0.2
11
40
04
8.8
24
3.9
21
40
05
7.2
04
8.8
81
40
06
3.2
65
2.4
7
Hig
h2
00
04
8.4
13
5.0
72
00
05
3.8
73
7.3
32
00
06
1.8
54
0.6
42
00
07
2.5
44
5.0
72
00
08
0.2
64
8.2
8
Lo
w1
80
5.3
74
4.7
21
80
6.3
44
4.1
91
80
6.9
35
1.9
01
80
8.1
75
7.6
31
80
8.3
05
8.2
2
Me
diu
m2
70
6.9
94
1.4
62
70
8.2
74
0.3
92
70
9.0
44
7.7
72
70
10
.68
52
.80
27
01
0.7
95
3.1
4
Hig
h3
70
8.7
53
6.6
13
70
10
.37
38
.23
37
01
1.3
54
5.4
33
70
13
..4
15
0.0
63
70
13
.50
50
.24
Lo
w2
60
7.8
34
4.9
62
60
8.8
24
8.1
22
60
10
.26
52
.72
26
01
2.1
85
8.8
32
60
13
.57
63
.27
Me
diu
m4
10
10
.51
41
.26
41
01
1.8
74
4.0
14
10
13
.84
47
.99
41
01
6.4
65
3.2
94
10
18
.35
57
.12
Hig
h5
70
13
.25
39
.28
57
01
4.9
94
1.8
15
70
17
.51
45
.48
57
02
0.8
65
0.3
45
70
23
.28
53
.86
Lo
w5
80
17
.97
45
.69
58
02
0.1
84
8.8
65
80
23
.41
53
.47
58
02
7.7
25
9.6
45
80
30
.84
64
.09
Me
diu
m8
80
24
.14
42
.74
88
02
7.1
64
5.5
98
80
31
.57
49
.75
88
03
7.4
35
5.2
78
80
41
.68
59
.28
Hig
h1
35
03
0.2
83
8.6
01
35
03
4.1
44
0.9
71
35
03
9.7
44
4.4
11
35
04
7.1
94
8.9
91
35
05
2.5
85
2.3
0
Lo
w8
80
26
.01
44
.51
88
02
9.0
44
7.3
68
80
33
.49
51
.55
88
03
9.4
65
7.1
98
80
43
.79
61
.26
Me
diu
m1
40
03
6.0
34
1.3
41
40
04
0.2
84
3.8
61
40
04
6.5
34
7.5
61
40
05
4.9
15
2.5
21
40
06
0.9
75
6.1
1
Hig
h2
00
04
5.5
23
8.8
72
00
05
0.9
74
1.1
32
00
05
8.9
44
4.4
42
00
06
9.6
14
8.8
62
00
07
7.3
35
2.0
6
Above o
utp
uts
for
basic
unit f
itte
d w
ith s
tandard
lo
uvre
d d
ischarg
e.
Fo
r unit o
utp
uts
with f
itte
d in
let
or
dis
carg
e a
ccessorie
s p
lease c
onta
ct
Dunham
-Bush.
(165
.0°C
)
8
(151
.8°C
)
4 64 6 8 4 6 8 4 6 8 4 6 8 4 6 44 6 8 4 6 84 6 86 8
(111
.4°C
)(1
20
.2°C
)(1
33
.5°C
)
Fa
n C
on
tro
l
Vo
lta
ge
4 6 8
15°C
1
0°C
1 2 3 4
Ta
ble
7:
Un
it h
ea
ter
ou
tpu
ts f
or
fla
ng
ed
"S
F" S
tea
m C
oil
(G
au
ge
pre
ssu
res d
ry s
tea
m a
s b
elo
w)
20°C
1 2 3 4
6.0
Ba
r
2 3 46 88 4
0.5
Ba
r1
.0 B
ar
2.0
Ba
r4
.0 B
ar
13
VERTICAL AND HORIZONTAL AIR THROWS Vertical and horizontal air throws of basic units with discharge louvres, operating at specific conditions are listed in Table 6. If the air temperature difference (leaving air temperature minus room temperature) varies, due to different operating conditions, or if the air volume flow rate is reduced due to inclusion of accessories, such as discharge cone/nozzle or filter box, the new vertical air throw can be determined from the graphs on page 13. NOTE: If it is proposed to use a discharge cone/nozzle, filter box or if units are to work against ductwork resistance, please consult Dunham-Bush. Increased air throws and mounting heights shown overleaf.
Basic
Unit Size
Heating Coil /
Connection type
Mount
HeightThrow
Mount
HeightThrow
Mount
HeightThrow
Type A / Screwed or
Flanged2.0 5.0 3.0 8.0 4.0 11.0
Type B / Screwed or
Flanged2.0 2.0 2.0 6.0 2.0 10.0
Type C / Screwed
only2.0 2.0 2.0 4.0 2.0 7.0
Type D / Screwed
only2.0 2.0 2.0 3.0 2.0 6.0
Type S Steam Coil /
Flanged Only2.0 4.0 2.0 8.0 2.0 13.0
Type A / Screwed or
Flanged2.0 7.0 3.0 9.0 4.0 11.0
Type B / Screwed or
Flanged2.0 6.0 2.0 8.0 3.0 10.0
Type C / Screwed
only2.0 3.0 2.0 5.0 2.0 8.0
Type D / Screwed
only2.0 2.0 2.0 4.0 2.0 7.0
Type S Steam Coil /
Flanged Only2.0 5.0 2.0 8.0 3.0 11.0
Type A / Screwed or
Flanged2.0 10.0 3.0 14.0 5.0 21.0
Type B / Screwed or
Flanged2.0 8.0 2.0 13.0 3.0 19.0
Type C / Screwed
only2.0 4.0 2.0 11.0 3.0 18.0
Type D / Screwed
only2.0 4.0 2.0 9.0 2.0 14.0
Type S Steam Coil /
Flanged Only2.0 9.0 2.0 13.0 4.0 19.0
Type A / Screwed or
Flanged2.0 8.0 4.0 15.0 5.0 23.0
Type B / Screwed or
Flanged2.0 9.0 3.0 14.0 4.0 20.0
Type C / Screwed
only2.0 7.0 2.0 12.0 3.0 17.0
Type D / Screwed
only2.0 7.0 2.0 10.0 2.0 14.0
Type S Steam Coil /
Flanged Only2.0 11.0 3.0 16.0 5.0 22.0
1
2
3
4
Fan Speed
Low Medium High
Low Medium High
Basic
Unit Size
Heating Coil /
Connection type
Mount
Height
Mount
Height
Mount
Height
Type A / Screwed or
Flanged2.0 3.0 5.0
Type B / Screwed or
Flanged2.0 2.0 3.0
Type C / Screwed
only2.0 2.0 2.0
Type D / Screwed
only2.0 2.0 2.0
Type S Steam Coil /
Flanged Only2.0 2.0 3.0
Type A / Screwed or
Flanged2.0 3.0 4.0
Type B / Screwed or
Flanged2.0 2.0 3.0
Type C / Screwed
only2.0 2.0 2.0
Type D / Screwed
only2.0 2.0 2.0
Type S Steam Coil /
Flanged Only2.0 2.0 3.0
Type A / Screwed or
Flanged2.0 3.0 6.0
Type B / Screwed or
Flanged2.0 3.0 4.0
Type C / Screwed
only2.0 2.0 3.0
Type D / Screwed
only2.0 2.0 2.0
Type S Steam Coil /
Flanged Only2.0 3.0 5.0
Type A / Screwed or
Flanged2.0 4.0 7.0
Type B / Screwed or
Flanged2.0 3.0 6.0
Type C / Screwed
only2.0 2.0 4.0
Type D / Screwed
only2.0 2.0 3.0
Type S Steam Coil /
Flanged Only2.0 3.0 6.0
4
1
2
3
Fan Speed
Table 8: Air throws in metres unit mounted horizontally. Table 9: Air throws in metres unit mounted vertically. Based on 75°C mean LTHW or steam at 1 bar Based on 75°C mean LTHW or steam at 1 bar (gauge) and 20°C entering air. (gauge) and 20°C entering air. For other conditions please see graphs overleaf. For other conditions please see graphs overleaf.
NOTES 1 Mounting heights are from floor to underside of unit. 2 Mounting heights listed ensure air will generally reach floor level. If this is considered unnecessary mounting heights may be increased accordingly. 3 Vertical air throw and mounting heights of units discharging vertically downwards can be increased by fitting a discharge cone. Refer to performance graphs overleaf. 4 Air throws and mounting heights of units mounted horizontally can be increased by fitting discharge nozzles. 5 Mounting heights should never be less than 2 metres, for comfort and safety.
14
APPLICATION Vertical air throws with standard discharge louvre
UH1
50 K
40 K
30 K
25K
20K
15K
10K
100
200
300
400
500
0 1 2 3 4 5 6
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH2
50 K
40 K
30 K
25K
20K
15K
10K
200
300
400
500
600
700
800
0 1 2 3 4 5
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH3
50 K40
K30
K25
K20
K15
K10
K
500
700
900
1100
1300
1500
1700
0 1 2 3 4 5 6 7 8
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH4
50 K
40 K
30 K
25K
20K
15K
10K
700
1000
1300
1600
1900
2200
2500
2800
0 1 2 3 4 5 6 7 8 9
10
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
Vertical air throws with discharge cone or nozzle
UH1
50 K
40 K30
K25
K20
K15
K10
K
100
200
300
400
500
0 1 2 3 4 5 6 7 8 9
10
11
12
13
14
15
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH2
50 K
40 K
30 K
25K
20K
15K
10K
200
300
400
500
600
700
800
0 1 2 3 4 5 6 7 8 9
10
11
12
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH3
50 K
40 K
30 K
25K
20K
15K
10K
500
700
900
1100
1300
1500
1700
0 2 4 6 8
10
12
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
UH4
50 K
40 K
30 K
25K
20K
15K
10K
700
1000
1300
1600
1900
2200
2500
2800
0 2 4 6 8
10
12
14
16
18
20
22
Vertical Air Throw (m)
Air V
olu
me F
low
Rate
(l/
s)
Graphs: Air throws in metres plotted against air volume flow rate in l/s for different values of “Δt – EAT” in Kelvin
where Δt – EAT = discharge air temperature minus entering air temperature.
15
APPLICATION
General Series UH unit heaters are suitable for a wide range of industrial warm air space heating applications, such as factories, warehouses and workshops. Basic units are suitable for horizontal or vertical application and are designed to re-circulate room air. By the addition of various accessories, they can also be used for the following applications: 1 An inlet box can be added where heaters are required to introduce outside air. (Note, units are suitable for operating against limited external resistance). 2 When a mixture of re-circulation and outside air is required, a manual mixing box with multi-leaf dampers can be added to all units. 3 For automatic operation, an electric actuator can be fitted to the mixing box. 4 A filter box can be added to all heaters to remove dust etc. from the inlet air.
Selection Horizontal or Vertical Units The choice of whether to use horizontal or vertical units is usually determined by room height and type of application. In general, horizontal mounting is recommended for rooms of moderate height with no major obstructions to air flow, bearing in mind the throw and recommended mounting heights - see Performance. The louvre assembly may be adjusted to vary the angle of inclination of discharge air, but where it is also necessary to adjust the spread angle, a wide spread discharge can be fitted to the outlet, with consequent reduction in throw. Series UH unit heaters should be applied to discharge vertically when they must be fitted in a roof space, at greater heights than recommended for horizontal mounting. The vertical air throws given in the performance section for basic units are those obtained with the discharge louvres in the vertical or near vertical positions. Angling the louvres will have the effect of increasing the air spread but decreasing the vertical throw. When greater mounting heights are required a discharge cone or discharge nozzle can be fitted. This has the effect of increasing the outlet velocity but decreasing the air volume flow rate and output slightly - see Performance. Units with four sides discharge are only suitable for low ceiling heights and mounting heights up to 2.5 metres.
Noise Levels The room sound pressure level and hence the noise criteria NC or noise rating NR, can be determined using the sound power levels listed in Table 7. • Lp = Lpr + Lpd Where Lp is the total room sound pressure level, Lpr is the reverberant sound pressure level, taking into account the room acoustic characteristics and surface area. Lpd is the direct room sound pressure level, taking into account distance from the unit to the listener and the directivity. Lp can be plotted on the appropriate curves, to find the NR number.
Air Stream Temperatures The entering air temperature at high level is usually higher than the internal design temperature. The approximate entering air temperature at the mounting height of a unit heater can be found as follows:- For leaving air temperatures up to 50˚C a temperature increase of 1.4 K per metre of mounting height above working level can be expected.
Outputs, LTHW Flow Rate and Hydraulic Resistance The outputs and hydraulic resistances are given on the output tables on pages 6 to 12 at various standard conditions. The LTHW flow rate can be determined using the formula: m = Q / 4.2 Δt where m is water mass flow rate (kg/s), Q is output, (kW) and Δt is water temperature difference (K). For outputs, flow rates and resistances outside of these conditions please contact Dunham-bush for a bespoke selection.
Quantity and Size of Units The quantity of heaters decided upon must be sufficient to meet the heat loss plus any margin. If outside air is to be introduced, through the units, the outside air load should be added to the fabric loss. To achieve a reasonably uniform air temperature within the heated space, it is suggested that the room air volume should be circulated through the sum of the heaters approximately 4 to 5 times per hour. Best distribution is usually obtained by selecting several small units rather than one large unit.
Location All units should be installed within the recommended mounting height range. Horizontal application units should be located to blow along or at an angle to exposed walls. Heaters should be arranged so that they work together to produce a circular airflow pattern, taking into account the air throw. Vertical discharge units should be located so that the discharge air patterns overlap slightly, otherwise uneven heating may result. It should be remembered that at maximum mounting height the air spread will be the minimum and vice versa. A clearance of at least 300mm must be allowed behind horizontal units and above vertical discharge units for air inlet and maintenance purposes.
Controls Fan motors may be controlled manually or automatically, as shown in the wiring diagrams. NOTE: Adjustable LTC thermostat only to be used where pipework up to a maximum of 90°C.
Please also see note overleaf with reference to higher coil temperatures.
16
CONSTRUCTION Handling Weights of heaters and accessories are listed - Table 14 page 18. Units are shipped on pallets individually or in groups. Appropriate lifting equipment, such as a fork lift truck may be required for off-loading. Care should be taken to ensure units are not dropped or knocked under any circumstances. Storage Units should be stored under clean, dry conditions without stacking. Packing should not be removed until heaters are in the correct location, unless damage in transit is suspected (Note - buyer must examine goods promptly upon arrival and is not entitled to make any claim against the Company in respect of damaged goods, unless at the time of delivery the consignment note is endorsed by the buyer and countersigned by the carrier or shipping agent, with a note detailing the damage complaint). Each package is marked to show the register number and the size and type of units. If any reference or stencil number is given at the order stage, this will be marked on the package and paperwork. Preparation Supports must be provided for the unit heater, pipework and electrical conduit. When applicable, ducting should be properly supported and a flexible connection is recommended between the unit and any ductwork to reduce noise transmission. Installation Details Each unit is provided with four mounting plates which should be screwed to the sides of the heater, see illustrations. 8mm diameter drop rods, hooked at one end, with 50mm long screw thread at the other end, with washers and nuts for locking and adjustment are recommended. As an alternative to mounting plates and drop rods, a pair of wall/ceiling brackets can be supplied for all units except those fitted with mixing box. Pipework Connections Hot Water Coils See page 19 for positions and sizes of flow and return connections. Valves should be fitted for balancing and isolation purposes. An air vent should be fitted at the high point adjacent to each unit, to permit purging of air from the coil. A drain should be fitted at low level. Steam Coils See page 20 for position and sizes of steam and condensate connections. The steam supply must always be fitted to the top connection. A suitable steam trap, strainer and check valve must be fitted to the bottom condensate connection. NOTE – Higher Coil Temperatures: For vertical mounting applications where the flow temperature is in excess of 70°C or horizontal applications in excess of 100°C it is recommended a valve and actuator (by others) should be fitted to the pipework to isolate the unit when the fan is not running so as to prevent convected heat overheating the fan motor, thus tripping the thermal cut-out when the fan is off. Ductwork Connection Ductwork may be connected to units with inlet box, filter box or mixing box. The weld mesh screen on the inlet box or filter box may be removed and discarded. Flexible connections are recommended. Note : Basic units without inlet box or filter box are unsuitable for ductwork connection. Ductwork resistance should be taken into account when selecting units. Please contact Dunham-Bush sales and applications for help with selection. Electrical Connections All remote accessories will be required to be wired back to the terminal block in the unit according to the wiring diagram supplied with the unit. A hole will need to be made into the side of the electrical connections and controls box and suitable sized gland (by others) should be used. All site wiring must be in accordance with local regulations.
17
Heating Coil Data
Max. Working
Pressure (Bar g)
Max. Cold Test
Pressure (Bar g)
Max. Operating
Temp °C180 120
A / Screwed
16
24
120
A / Flanged B / Screwed
16 16 16
24 24 24 24 24 24
16 16
180 120 120
Heating Coil / Connection type
B / Flanged C / Screwed D / Screwed S / Flanged
180
16
Table 10: Maximum pressures and temperatures for Series UH heating coils
A B C D
1 0.5 1 1.1 1.6
2 0.6 1 2 2.3
3 1.05 2 2.8 3.5
4 2 4 5 6.1
COILBasic Unit Size
Table 11: Volume in litres for Series UH heating coils
Sound Data
Basic
Unit Size125Hz 250Hz 500Hz 1kHz 2kHz 4kHz
Low 54.2 54.2 48.7 46.9 46.7 41.3
Normal 62.4 62.4 58.2 57.2 57.6 54.3
High 70.7 69.2 65.2 64.2 64.9 62.5
Low 47.6 48.7 45.2 43.7 40.6 35.3
Normal 57.3 56.8 53.6 53.0 51.8 47.6
High 66.9 62.4 59.0 60.1 58.8 55.3
Low 53.6 52.8 50.3 50.2 50.8 44.5
Normal 66.6 67.2 61.8 59.2 60.0 56.6
High 73.1 70.2 66.7 65.8 65.2 63.0
Low 55.4 53.0 50.1 47.2 46.2 42.8
Normal 62.5 60.0 60.2 59.0 55.3 55.3
High 67.6 68.3 66.7 66.0 62.7 59.5
Fan Control
Voltage
4
6
MID FREQUENCY BAND Hz
4
6
8
1
8
4
4
6
8
2
4
6
8
3
Table 12: Radiated sound power levels for basic unit without accessories (dB ref 10-12 W) The room sound pressure level, hence the Noise rating (NR), can be determined using the sound power levels above
Motor Electrical Data
Basic Unit Size
IP5460 -2550 / 60 4.40 / 3.20 1440
Ingress
Protection
IP44
IP44
IP54
Min operating
Temp °C
-25
-25
-25
Max Operating
Temp °C
60
60
60
Max Fan Speed
RPM
2580
1900
1800
Max power
W
11
15
52
Max Current
50/60Hz
0.90 / 0.65
1.15 / 0.84
2.70 / 1.95
Operating
Voltage range
AC Frequency
Hz
50 / 60
50 / 60
200 / 277 84
200 / 277
200 / 2772
1
3 200 / 277 50 / 60
4
Table 13: Electrical data for unit heaters
18
Mass of Units
UH1 UH2 UH3 UH4
26.2 34 41.9 61.9
27.8 35 43 66.3
27.3 37 46.4 68.5
28.4 39 48.6 72.9
29.9 39 49.4 73
14.6 16 17.4 19.5
13.2 20 21 23.1
8.6 11 12.4 15.4
11.1 14 16 19.7
20.8 25 30 36.9
4.8 7 10 15
7.3 11 15.25 23.1
1.3 3 4.4 6.7
3.4 5 7.1 10.7
Basic Unit Coil B
Filter Box
Mixing Box
Basic Unit Coil B
Ceiling/Wall Brackets ‡
Inlet Box
Discharge Nozzle
Basic Unit Coil S
Ceiling/Wall Brackets †
Basic Unit Coil D
Basic Unit Size
Discharge Cone
DESCRIPTION
Basic Unit Coil A
Wide Spread Discharge
Four Sides Discharge Table 14: Masses of Heaters and accessories in Kg † Pair of brackets for basic unit ‡ Pair of brackets for unit with optional fitted inlet box or filter box
Dimensions
315 7
80 MAX
DIMA 100
120
DIM C
81.5
DIM
D
70 DIM E
ELECTRICAL
CONNECTION BOX
OPTIONAL
ADJUSTABLE
LOUVRE
COVER PLUGS IN HOLES
FOR MOUNTING PLATES OR
WALL/CEILING BRACKET FIXINGS
COIL
SIZE
DIM
EN
SIO
N
1 2 3 4
AS BS CS DS AS BS CS DS AS BS CS DS AS BS CS DS
A
B
C
D
E
450 450 450 450 550 550 550 550 650 650 650 650 800 800 800 800
¾" ¾" ¾" ¾" ¾" 1" 1" 1" ¾" 1" 1" 1" 1" 1¼" 1¼" 1¼"
37 37 37 37 37 44 44 44 37 44 44 44 44 51 51 51
287 287 287 287 387 387 387 387 487 487 487 487 637 637 637 637
46 68 89 111 46 68 89 111 46 68 89 111 46 68 89 111
DIM
A
Ø B BSP MALE
(SEE TABLE)
AIR FLOW
Diagram 2: Series UH LPHW coil screwed BSP connections dimensions as per table below.
SIZE
COIL AS BS CS DS AS BS CS DS AS BS CS DS AS BS CS DS
A
B ¾” ¾” ¾” ¾” ¾” 1” 1” 1” ¾” 1” 1” 1” 1” 1¼” 1¼” 1¼”
C 37 37 37 37 37 44 44 44 37 44 44 44 44 51 51 51
D
E 46 68 89 111 46 68 89 111 46 68 89 111 46 68 89 111
1 2 3 4
DIMENSION
450 550
287 387
650 800
487 637
For drawings of the full range of standard units please contact Dunham-Bush
19
Dimensions (cont.)
120
100
81.5
DIM
C
DIM A
75
OPTIONAL
ADJUSTABLE
LOUVRE
COVER PLUGS IN HOLES
FOR MOUNTING PLATES OR
WALL/CEILING BRACKET FIXINGS
DIM D 70
315 7
80 MAX.
STEEL FLANGE TO
BS4504-PN20-DN'B'-A1
DN'B' REFER TABLE
AIR FLOW
Diagram 3: Series UH HPHW coil flanged connections dimensions as per table below.
SIZE
COIL
A
B
C
D 6846 68 46 68
32
287 387 487 637
25
46 68 46
20 25 20 25
800
BF AF BF AF BF AF BFAF
450 550 650
DIMENSION20 20
1 2 3 4
For drawings of the full range of standard units please contact Dunham-Bush
100
120
DIM A 75
80 MAX 315 7
ELECTRICAL CONNECTION BOX
COVER PLUGS IN HOLES
FOR MOUNTING PLATES OR
WALL/CEILING BRACKET FIXINGS
OPTIONAL
ADJUSTABLE
LOUVRE
84
DIM
C
STEAM CONNECTION
STEEL FLANGE TO
BS EN 1092 PN16 - DN'B'
CONDENSATE CONNECTION
STEEL FLANGE TOBS EN 1092 PN16 - DN'B'
DN'B' REFER TABLE
DN'B' REFER TABLE
DIM D 70
DIM
A AIR FLOW
Diagram 4: Series UH Steam coil flanged connections dimensions as per table below.
SIZE
COIL
A
B
C
D
637
66
387
52
4
SF
800
40
650
25
487
52
1
SF
450
287
52
DIMENSION
SF
550
2525
3
SF
2
For drawings of the full range of standard units please contact Dunham-Bush Notes on dimensions for flanged connections on coils type ‘AF’, ‘BF’ & ‘SF’:
BS EN 1092 = British & European Standard for flanges PN 16 = "Flange Pressure Nominal" 16 - Refers to the pressure rating of the flange, 16 bar (gauge). DN 'B'= "Diameter Nominal" 'B' - The size of the flange. 'B' is the dimension given in the table in the row labeled
'B', e.g. this is 25mm for a UH3 BF.
20
Dimensions (cont.)
DIM A 35243
BASIC UNIT WITHOUT ACCESSORIES
Ø10
30
DIM A
BASIC UNIT WITH FITTED INLET OR FILTER BOX
Ø10
30
243 35
Diagram 5 & 6: Horizontal applications - Basic unit, no accessories (top) and unit with inlet box (bottom) dimensions as per table below
BASIC UNIT NO ACCESSORIES
30
Ø10
DIM B
DIM
A
DIM C
278
Diagram 7 & 8: Vertical applications - Basic unit, no accessories (left) and unit with inlet box (right) dimensions as per table below
SIZE
A
B
C
DIMENSION
321
710610510
580480380 730
4
450 550 650 800
860
21
Dimensions (cont.)
Diagram 7 & 8: Series UH Wall bracket positions and hole centres
22
ENGINEERING SPECIFICATION The series UH unit heaters shall be manufactured by Dunham-Bush Limited, Downley, Havant PO9 2JD. The size, performance, options and quantities shall be as specified elsewhere in the Unit Heater Schedule. In addition, each unit shall be designed and manufactured to ISO9001, and comply with the minimum specification below:-
Performance Series UH unit heaters shall be capable of the thermal, acoustic and air volumetric performance in accordance with BS4856 and as stated in the Unit Heater Schedule, when installed in accordance with the manufacturer’s recommendations.
Composition Units shall comprise casing, fan assembly, discharge louvre, coil and hanging plates, as standard. Additional features and options shall be as specified in the the Unit Heater Schedule.
Casing The casing shall be fabricated from 1.6mm thick mild steel sheet which shall be formed and assembled using discrete screw fixings to produce a rigid, durable and aesthetically pleasing chassis.
Discharge Louvre The standard discharge louvre shall formed be from 1.2mm mild steel and comprise a frame with individually adjustable louvre blades to diffuse and angle the air flow. Other discharge options are available and shall be fitted when specified in the Unit Heater Schedule.
Fan Assembly The fan assembly shall consist of a motor, axial fan and wire guard. The electronically commutated (EC) energy efficient motor shall have a minimum ingress protection rating of IP44, ‘lubricated for life’ bearings and infinitely variable speed control. Motors shall be suitable for a 230 Volts, 1 phase, 50/60 Hertz electrical supply and electrical termination shall be via an IP45 electrical connection box mounted on the side of the chassis. The control box shall also house the speed adjustment potentiometer or, when specified in the Unit Heater Schedule, terminals to accept an external 0-10Vdc speed input. The sickle shaped fan blades shall be profiled to give optimum air flow, acoustic and efficiency characteristics and be formed from composite material. The fan assembly shall comply fully with the ErP 2015 energy efficiency requirements.
Heating Coil Hot water coils shall be constructed from 3/8” seamless drawn copper tubes, expanded into aluminium plate fins with external male taper connections of the appropriate size to ISO7 (BSP male taper), as standard. When specified in the Unit Heater Schedule, coil types A and B shall be fitted with bi-metallic flanged connections to BS EN 1092-3:2003 type 7 PN16, of the appropriate size (Dunham-Bush recommend flanged connections for MTHW and HTHW applications). Steam coils shall be constructed from 1/2” seamless drawn copper tubes, expanded into aluminium plate fins with bi-metallic flanged connections to BS EN1092-3:2003 type 7 PN16, of the appropriate size, as standard. All coils are housed protective removable frame formed from 1.2mm galvanized steel. The frame and distribution headers shall be contained within the casework of the unit to give an aesthetically pleasing appearance
Coil Working and Test Pressures Coils with male taper screwed connections shall be suitable for a maximum working pressure and temperature of 16 bar (gauge) at 120°C and a maximum cold test pressure of 24 bar (gauge). Coils with flanged connections shall be suitable for a maximum working pressure and temperature of 16 bar (gauge) at 180°C and a maximum cold test pressure of 24 bar (gauge).
Finish All casing components and discharge louvre assembly shall be finished in polyester powder coating. Casing colour 10 A 03 flake grey 36% gloss. Discharge louvre 00 E 53 black 10% gloss. Colours to BS4800:1989.
PRICES AND CONDITIONS OF SALE
Prices Dunham-Bush do not issue price lists but will be pleased to supply a written quotation upon request.
Standard Conditions of Sale The standard Dunham-Bush Ltd. conditions of sale appear on the reverse side of all order acknowledgement forms. Additional copies are available on request.
23
SUPPLY
Availability Series UH unit heaters are built to order and supplied direct from our factory. The delivery period of heaters varies with demand and should therefore be checked at the ordering stage.
Ordering To ensure unit heaters are supplied as specified, a code system is used for order entry and manufacture. The combination of the letters and numbers listed overleaf generates the unit heater description code.
Packing Each Series UH unit heater is properly packed and marked with the register number and the size and type of unit. If any reference or stencil number is given at the ordering stage, it will be marked on the packing for site identification
SERIES UH FAN CONVECTOR DESCRIPTION CODES
N - None, S - Inlet Box With Mesh Screen, F - Inlet Box with Mesh Screen and Filter
N - None, M - Manual, E - Fitted 230V AC Actuator, A - Actuator by others or Special
N - None, 1 - Remote I/O Switch*, 3 - Remote M/O/A Switch*†
Isolating Valves
P - Mounting Plates, B1 - Mounting Brackets, Basic Unit, B2 - Mounting Brackets, Unit with Inlet/Filter Box
N - None, L - Standard Louvre, W - Widespread Discharge Louvre, C - Cone, Z - Nozzle, F - Fourway Discharge
N - None, 2 - Fitted Adjustable Low temperature cut off
N - None, R - Remote Thermostat
N - Not applicable on series UH
NN - None, R1 - Fitted 24V AC Enable Relay
N - None (Isolating valves by others)
N - None (Control valves by others)
N - No Speed Control (0-10V DC Signal by others OR slave unit), F - Fitted Fan Speed Potentiometer in Controls Box,
R - Remote Mounted Fan Speed Potentiometer*
SA - Standard, AA - Ambient
1, 2, 3 or 4
U - Universal
U - Universal
Component Component Description
UH - Unit Heater
Mounting
Discharge
Inlet Box
Mixing Box
Relay Control
LTC
Air Thermostat I/O
Air Thermostat H/L
18
11
12
13 Speed Control
14 Switch Function
Coil Entry
Air Vent
Coil
19
20
21
15
16
17
Product
Model
Size
Coil Hand
L - Low, M - Medium, H - High, Q - Special
Control Valves
NN - None (Ambient unit, no heating), AS - Type A Screwed Conections, BS - Type B Screwed Conections,
CS - Type C Screwed Conections, DS - Type D Screwed Conections, AF - Type A Flanged Connections,
BF - Type B Flanged Connections, SF - Steam Coil Flanged Connections
6
Motor Type
N - None (Air vent by others to be fitted elsewhere is system).
EC - 230V Single phase EC/DC Motor, QQ - Special
Fan Speed
7
8
9
10
4
5
Code
Position
1
2
3
* Complete with single gang surface mounted metal clad pattress box. (can be surface mounted using appropriate pattress box by others)
† Bypasses any thermostatic controls in manual mode.
121-602-002MK Logic faceplate with fitted Potentiometer*
MK Logic Manual/Auto/Off Switch*†
903-002-057-
121-601-003
Part Number
Part NumberRemote Speed Control Potentiometer
Remote Switches
MK Logic On/Off Switch*
-
Standard Part Number Tamperproof Part Number
121-601-001
Room Thermostats
Honeywell T6360B1028
Honeywell T6360B1069
903-002-056
U H U U N N N
3 4 5 7 9 10 11 12 13 14 16 17 18 19 20 21 6 15 8 1 2
24
Dunham-Bush Ltd Downley Road
Havant PO9 2JD
Tel.: 023 92 477 700 Fax.: 023 92 453 601
Email: [email protected] 115-000-000-E
www.dunham-bush.co.uk July 2016
Manufacturer reserves the right to change any product specification without notice.
