Bulletin A-180b - Brasch Manufacturing

Transcription

Bulletin A-180b
Contents
Product
Page
Wall Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Ceiling Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Baseboard Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
Cabinet Unit Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 7 - 8
Washdown Unit Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 12
Hazardous Location Unit Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 - 18
Architectural Electric Convectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 - 22
BRASCH
Architectural Forced Air WALL Heaters
Decorator Designed for Functional Beauty and Versatility
Rugged Grille: Heavy dark brown 18 gauge steel grille.
Richly Styled Grille: Grille is highlighted by a 14-gauge anodized extruded aluminum
frame.
Electric Element: Steel sheath with plate heat exchanger.
Fan Delay Switch: Allows fan to continue to run for a short period after thermostat is
satisfied to expel warm air from inside heater, also delays fan on start up to insure
delivery of heated air.
Unique Vane Axial Fan Wheel draws in large volumes of air then quietly discharges
heated air downward into room.
Tamper Resistant Thermostat and Disconnect Switch accessible through grille.
Specifications
Model Number
Watts
Volts
Weight
BWH7512
750
120
22 lb.
BWH1012
1000
120
22 lb.
BWH1512
1500
120
26 lb.
BWH4020
4000
208
29 lb.
BWH4820
4800
208
29 lb.
BWH1524
1500/1125
240/208
26 lb.
BWH2024
2000/1500
240/208
27 lb.
BWH3024
3000/2250
240/208
29 lb.
BWH4024
4000/3000
240/208
29 lb.
BWH4824
4800
240
29 lb.
BWH1527
1500
277
26 lb.
BWH2027
2000
277
27 lb.
BWH3027
3000
277
29 lb.
BWH4027
4000
277
29 lb.
BWH4827
4800
277
29 lb.
Field Installed Accessories
Model Number
Description
Weight
Box 3310
Rough-in Box Only (for advance installation)
10 lb.
3320EX33
Surface Mounting Adapter
1 lb.
3320EX16
2" Semi-recess Sleeve
1 lb.
Factory Installed Accessories
Suffix
Description
R
Day Night Relay
HD
16 Ga. Steel Heavy Duty Grill
E L E C T R I C H E AT I N G P R O D U C T S
Architectural Quality
Wall Mounted
■
■
■
■
■
■
■
■
Built-in disconnect switch
Built-in tamper resistant thermostat
Richly styled, rugged grille
Whisper-quiet sound level
Fan delay
1-Year element limited warranty
U.L. listed
CSA listed
Typical Specifications
Brasch Heavy-Duty Forced Air Heaters shall be
constructed of a heavy 18 gauge steel housing
with an extruded aluminum frame.The rough-in
dimensions are 19-5/16" high x 14-3/16" wide x
4" deep.The units shall be available in ratings
from 750 to 1500 watts at 120 and 1500 to 4800
watts at 240, 208 and 277 volts.The heaters shall
have a low-speed 600 RPM, 4-pole motor which
drives a vane axial blower to deliver a quiet 175
CFM of down flow air. The heating element
shall be of the sealed tubular type with large,
parallel steel fins for quick heat transfer. Unit
shall have as standard, a thermal overload cutoff for added safety, fan delay switch and a builtin tamperproof thermostat which shall be
calibrated to provide a range of 55°F. to 85°F.
and manual disconnect switch.
Optional accessories shall include a surface
mounting adapter, day-night relays. All heaters
shall be listed by Underwriter's Laboratories, Inc.
The heating element shall be supplied with a
manufacturer’s 1-year limited warranty.
1
Dimensions
2
B R A S C H M A N U FA C T U R I N G C O M PA N Y, I N C .
BRASCH
CEILING Heaters
Recess • Surface • T-Bar
Versatile application
Large volume of comfortably warm air is produced by a whisper-quiet heater. Ideal
for residential, commercial and industrial locations where wall and floor
applications are not feasible.
Quiet Operation
Because of the extremely quiet operation, the BCH may be used in restaurants,
nursing homes, schools and lobbies. They draw in large volumes of air and
discharge heated air downward into the needed areas. These heaters feature the
vane axial fan that has proven to be successful in other products.
Specifications
Model Number
Watts
Volts
Weight
BCH1512
1500
120
22 lb.
BCH4020
4000
208
22 lb.
BCH4820
4800
208
22 lb.
BCH2024
2000/1500
240/208
22 lb.
BCH3024
3000/2250
240/208
22 lb.
BCH4024
4000/3000
240/208
22 lb.
BCH4824
4800
240
22 lb.
BCH2027
2000
277
22 lb.
BCH3027
3000
277
22 lb.
BCH4027
4000
277
22 lb.
BCH4827
4800
277
22 lb.
Field Installed Accessories
Model Number
Description
Weight
Box 3310
Rough-in Box Only (for advance installation)
10 lb.
3380 EX33
Surface Mounting Box
1 lb.
TB 3380
T-Bar Mounting Box
7 lb.
Other Standard Features Include:
■ Neutral ceiling white, rust resistant
finish to blend in with most any
ceiling color or decor. Grille is shallow
in design to look unobtrusive.
■ Automatic fan delay. When
thermostat is satisfied, the fan
continues to run momentarily until
all heated air is discharged to insure
efficiency.
■ Disconnect switch.
■ Totally enclosed steel fin sheath
element for safety and long life.
■ Mounting Applications
Recess (Standard)
Surface (3380 EX33 Kit)
2x2 T-Bar (TB3380 Kit)
Typical Specifications
Brasch Electric Forced Air Heaters shall be
constructed of a heavy gauge steel housing.
The rough-in dimensions are 19-5/16" high x
14-3/16" wide x 4" deep. The finish shall be
baked-on enamel paint in Ceiling White color.
The units shall be available in ratings from
1500 through 4800 watts.
The heaters shall have a low speed 600
RPM motor which drives a vane axial blower to
deliver a quiet 175 CFM of down flow air. The
heating element shall be of the sealed tubular
type with large, parallel steel fins for quick heat
transfer. Unit shall have as standard a thermal
overload cutoff for added safety.
All heaters shall be listed by Underwriters'
Laboratories, Incorporated. The heating
element shall be supplied with a
manufacturer's 1 year limited warranty.
3
Dimensions
4
BRASCH
BASEBOARD Heaters
Specifications
Model Number
B24-375A
B24-375B
B24-375C
B24-375D
B28-500A
B28-500B
B28-500C
B28-500D
B36-600A
B36-600B
B36-600C
B36-600D
B40-750A
B40-750B
B40-750C
B40-750D
B48-1000A
B48-1000B
B48-1000C
B48-1000D
B48-750D
B60-1250A
B60-1250B
B60-1250C
B60-1250D
B60-938D
B72-1500A
B72-1500B
B72-1500C
B72-1500D
B72-1125D
B84-1750B
B84-1750C
B84-1750D
B84-1313D
B96-2000B
B96-2000C
B96-2000D
B96-1500D
B120-2500B
B120-2500C
B120-2500D
B120-1875D
Volts
120
208
240/208
277/240
120
208
240/208
277/240
120
208
240/208
277/240
120
208
240/208
277/240
120
208
240/208
277/240
277
120
208
240/208
277/240
277
120
208
240/208
277/240
277
208
240/208
277/240
277
208
240/208
277/240
277
208
240/208
277/240
277
Watts
375
375
375/281
375/281
500
500
500/375
500/375
600
600
600/450
600/450
750
750
750/563
750/563
1000
1000
1000/750
1000/750
750
1250
1250
1250/938
1250/938
938
1500
1500
1500/1125
1500/1125
1125
1750
1750/1313
1750/1313
1313
2000
2000/1500
2000/1500
1500
2500
2500/1875
2500/1875
1875
Heater Length
24"
24"
24"
24"
28"
28"
28"
28"
36"
36"
36"
36"
40"
40"
40"
40"
48"
48"
48"
48"
48"
60"
60"
60"
60"
60"
72"
72"
72"
72"
72"
84"
84"
84"
84"
96"
96"
96"
96"
120"
120"
120"
120"
Stainless Steel Element
Rod with Aluminum Fins
■ All heaters are constructed of roll
formed steel and painted with a
powder coat textured finish for
outstanding durability and attractive
appearance. Brasch Baseboards are
available in both ivory and white - add
suffix w to model number for white.
■ Quick connect cable clamps are
located in right and left junction boxes
to restrain incoming field wiring
without the need for additional
hardware.
■ All baseboards are only 6" high and
extend 2 1/2" from the wall making
the Brasch Baseboard heater one of
the most compact baseboard heaters
on the market.
■ All baseboards are constructed with a
full length wireway along the back of
the heater. An optional wireway cover
can be ordered when specification
calls for an enclosed wireway.
■ Integral thermostats use the junction
box cover plate on the baseboard
heater. This eliminates the need for
stocking different colors of built-in
thermostats.
■ A 6" ground lead wire is provided in
both right and left junction boxes
allowing for easier ground connection.
■ The Brasch Baseboard has long-lasting
stainless steel element rod with its
aluminum chimney designed fins. The
fins are mechanically staked to the
element rod to allow excellent transfer
and dissipation of heat from the heater
into the room. By using a stainless steel
rod, the hum associated with other
models on the market is eliminated.
■ An over-temperature thermal limit
extends the entire length of the heated
area to serve as a safety device in case of
an air flow blockage in front of heater.
■ All units have 20 gauge junction boxes
at both ends of the heater. The front
and back of the heater are constructed
of 22 gauge roll formed steel.
■ The heater can be mounted to the
wall by using key hole knockouts
every 4" at the back of the heater.
5
Dimensions
Blank Sections
Baseboard Ivory
Length
Model #
Item
Model Number
Description
Weight
Disconnect Switch
DS
DSW
Disconnect Switch-Ivory
Disconnect Switch-White
1 lb.
Corner Sections
CS
CSW
Ivory Corner Section
White Corner Section
1 lb.
Joiner Kits
JK
JKW
1" Ivory Joiner Kit
1" White Joiner Kit
0.25 lb.
6" Blank Section
(Relay Not Included)
LVRS
LVRSW
6" Ivory Relay Section
6" White Relay Section
1.5 lb.
Receptacle Section
(Baseboard Mounted)
BDR115
BDR115W
Ivory - 15amp, 120 VAC
White - 15amp, 120 VAC
0.25 lb.
Receptacle Section
(Mtd. in 6" Blank Section)
DR115
DR115W
2 lb.
Transfer Switch
SR120
SR120W
2 lb.
Transfer Switch
SR220
SR220W
2 lb.
Wireway Adapters (to enclose wireway when specified)
6
Model Number
Baseboard Length
Adapter Length
Weight
WWA01
WWA02
WWA03
WWA04
WWA05
WWA06
WWA07
WWA08
WWA09
WWA00
24"
28"
36"
40"
48"
60"
72"
84"
96"
120"
20"
24"
32"
36"
44"
56"
68"
80"
92"
116"
1 lb.
1.5 lb.
2 lb.
2.5 lb.
3 lb.
4 lb.
5 lb.
6 lb.
7 lb.
8 lb.
White
Model #
24"
BBS024
BBS024W
28"
BBS028
BBS028W
36"
BBS036
BBS036W
40"
BBS040
BBS040W
48"
BBS048
BBS048W
60"
BBS060
BBS060W
72"
BBS072
BBS072W
84"
BBS084
BBS084W
96"
BBS096
BBS096W
120"
BBS120
BBS120W
Baseboard Accessories
Model #
TBS*
Description
SPST-In-built
22A/120-240V
18A/277V
TBS-TP
SPST-In-built
22A/120-240V
18A/277 V
TAMPERPROOF
TBD*
DPST-In-built
22A/120-240V
18A/277V
TBD-TP
DPST-In-built
22A/120-240V
18A/277V
TAMPERPROOF
* Used on all baseboard models
BRASCH
Electrical CABINET
UNIT Heaters
The Brasch Cabinet Unit Heater (BCUH) is ideal for commercial and
institutional applications such as offices, stores, schools, churches
and entry ways.
Standard units include a disconnect switch, built-in 24 volt thermostat
and disposable air filters but the Brasch Cabinet Unit Heater can also
be customized to meet your most demanding applications.
All units have a beige powder coated finish over an 18 ga. steel
housing that is 9 1⁄2" deep and 25" high and are manufactured with steel
sheathed finned tubular elements with full-length thermal protection.
Controls
• Choice of eight control options include, built-in or wall mounted
thermostats (24 or 120 volt) with built-in control transformer,
as needed.
• Independently adjustable heat settings (high / low) and fan motor
speeds (1550 / 1400 rpm) are standard, except 480 volt units have
a single fan speed.
• Power interrupt options include either a circuit breaker or
disconnect switch, except only circuit breakers can be used on
heaters that draw over 48 amps.
• Optional summer fan switch.
Mounting & Flow Configurations
• Mounting options include surface, semi-recessed or fully-recessed;
on walls or ceilings; and upright or inverted.
• Air flow can be configured in any combination of intake and output
through the top, bottom or front. In addition, a duct collar can
provide expanded application and flexibility.
Air Flow Configurations
(May be inverted)
A
Bottom In / Top Out
(Top In / Bottom Out)
B
Bottom In / Front Out
(Top In / Front Out)
C
Front In / Top Out
(Front In / Bottom Out)
D
Standard Models
Front In / Front Out
* = Factory wired for 3 phase
Field convertible to single phase
Custom Models
BRASCH
WASHDOWN UNIT Heaters
for Corrosion-Resistant Applications
Mounting Bracket Easy-mount bracket for
use with field-installed hanger
or optional mounting brackets
Scroll - 304 Stainless Steel
Plated Inlet Grille
Totally Enclosed Motor
Stainless Steel
Discharge Grille
Aluminum Fan Blade
Element
Thermostat
Three-Position Switch
(Heat - Fan - Off )
Pilot Light (Heater Energized)
Door Interlock
Disconnection Switch (Optional)
Rugged construction, stainless steel
enclosure for use in wet* and
corrosive* atmospheres (nonhazardous locations).
*Refer to installation and application data for
applicable environments or consult factory.
Nema 4x Non-Metallic Enclosure
Control Components
(24-volt Standard)
The BWUH unit heaters are electric unit
heaters constructed for use in areas
that require washing or hosing of
equipment due to dirty or dusty
industrial environment in nonhazardous locations. the totallyenclosed watertight construction made
with corrosion-resistant material make
the BWUH Series ideal for industrial
heating applications. The BWUH Series
is made with all built-in controls and
safety temperature controls wired in a
non-metallic Nema 4x control panel
with single-point power connections.
9
Standard Features:
Options
Sample Specification
■ Up to 48 KW
■ Teflon anodized aluminum fan blade
(3-30 kw only)
The electric unit heater shall be Brasch
BWUH Series rated for washdown
applications and shall include built-in
controls. Heaters shall be UL Listed
assemblies containing all limits and
controls as required by UL
specifications. Controls shall be housed
in a Nema 4x non-metallic control
enclosure fixed to bottom of unit
heater. The control enclosure will open
from bottom for ease of installation
and service. The control enclosure will
include contactors, 24-volt transformer,
fusing (NEC required) pilot light (power
on), thermostat and 3-position switch
(heat - off - fan).
■ Up to 600 Volts
■ Disconnect switch with enclosure
interlock
■ Heavy-duty 304 stainless steel
shroud
■ Nema 4x non-metallic control panel
■ 24-volt transformer and control circuit
■ 3-position switch (off - heat - fan)
■ Capillary thermostat with stainless
steel sensor
■ Automatic reset thermal cutout
■ Totally enclosed UL Listed motor
■ Pilot light (power on indicator)
■ Chrome-plated finned tubular element
■ Control panel on bottom of unit for
ease in installation and service
■ Single-point power connection
■ Meets all UL, NEC, and OSHA
requirements (when installed as
directed)
■ Corrosion-resistant in high humidity
and water-saturated areas (for areas
where corrosion-resistance is needed
in non-hazardous areas, contact
factory for heater applications and
optional materials).
■ Remote 24-volt thermostat
■ Stainless steel wall/ceiling mounting
bracket (3.3-15 kw)
■ Cast iron painted mounting bracket
available on all units for wall/ceiling or
pipe mounting
■ Hanging bracket for use with
threaded rod
The heater scroll will be 16 gauge 304
stainless steel with 304 stainless steel
outlet louvre. The inlet grille will be
chrome plated.
The motor shall be totally enclosed,
permanently lubricated, designed to
resist moisture and corrosion, and
factory-wired to Nema 4x enclosure.
Single point line voltage connection
available for 208, 240, 277, 480, and 600
volt service.
Door interlock disconnect on Nema 4x
control enclosure shall be factory
installed and wired.
Heavy-duty heating elements factory
wired and sealed for washdown
application shall be plated for
corrosion resistance.
10
Washdown Unit Heater
Catalog
Number
KW
BTU
HR
Heater
Volts
Phase
Standard
Control
Voltage
Max.
Amps
Motor
Voltage
HP
RPM
BWUH3.3-2081
BWUH3.3-2083
BWUH3.3-2401
BWUH3.3-2403
BWUH3.3-2771
BWUH3.3-4803
BWUH3.3-6003
3.3
3.3
3.3
3.3
3.3
3.3
3.3
11200
11200
11200
11200
11200
11200
11200
208
208
240
240
277
480
600
1
3
1
3
1
3
3
24
24
24
24
24
24
24
15.9
19.2
13.7
7.9
11.9
4.0
3.2
208
208
240
240
277
480
600
1/30
1/30
1/30
1/30
1/30
1/30
1/30
1550
1550
1550
1550
1550
1550
1550
BWUH5.0-2081
BWUH5.0-2083
BWUH5.0-2401
BWUH5.0-2403
BWUH5.0-2771
BWUH5.0-4803
BWUH5.0-6003
5.0
5.0
5.0
5.0
5.0
5.0
5.0
17100
17100
17100
17100
17100
17100
17100
208
208
240
240
277
480
600
1
3
1
3
1
3
3
24
24
24
24
24
24
24
24.1
13.9
20.8
12.1
18.1
6.1
4.8
208
208
240
240
277
480
600
1/30
1/30
1/30
1/30
1/30
1/30
1/30
1550
1550
1550
1550
1550
1550
1550
BWUH7.5-2081
BWUH7.5-2083
BWUH7.5-2401
BWUH7.5-2403
BWUH7.5-2771
BWUH7.5-4803
BWUH7.5-6003
7.5
7.5
7.5
7.5
7.5
7.5
7.5
25600
25600
25600
25600
25600
25600
25600
208
208
240
240
277
480
600
1
3
1
3
1
3
3
24
24
24
24
24
24
24
36.1
20.8
31.3
18.0
27.0
9.0
7.2
208
208
240
240
277
480
600
1/30
1/30
1/30
1/30
1/30
1/30
1/30
1550
1550
1550
1550
1550
1550
1550
BWUH10-2081
BWUH10-2083
BWUH10-2041
BWUH10-2403
BWUH10-2771
BWUH10-4803
BWUH10-6003
10.0
10.0
10.0
10.0
10.0
10.0
10.0
34130
34130
34130
34130
34130
34130
34130
208
208
240
240
277
480
600
1
3
1
3
1
3
3
24
24
24
24
24
24
24
47.8
27.7
41.2
24.1
36.1
12.1
9.6
208
208
240
240
277
480
600
1/30
1/30
1/30
1/30
1/30
1/30
1/30
1550
1550
1550
1550
1550
1550
1550
BWUH15-2081
BWUH15-2083
BWUH15-2041
BWUH15-2403
BWUH15-4803
BWUH15-6003
15.0
15.0
15.0
15.0
15.0
15.0
51200
51200
51200
51200
51200
51200
208
208
240
240
480
600
1
3
1
3
3
3
24
24
24
24
24
24
72.1
41.7
62.5
36.1
18.1
14.5
208
208
240
240
480
600
1/30
1/30
1/30
1/30
1/30
1/30
1550
1550
1550
1550
1550
1550
BWUH20-2083
BWUH20-2403
BWUH20-4803
BWUH20-6003
20.0
20.0
20.0
20.0
68260
68260
68260
68260
208
240
480
600
3
3
3
3
24
24
24
24
55.6
48.2
24.1
19.3
208
240
480
600
1/3
1/3
1/3
1/3
1625
1625
1625
1625
BWUH25-2083
BWUH25-2403
BWUH25-4803
BWUH25-6003
25.0
25.0
25.0
25.0
85325
85325
85325
85325
208
240
480
600
3
3
3
3
24
24
24
24
69.5
60.2
30.1
24.1
208
240
480
600
1/3
1/3
1/3
1/3
1625
1625
1625
1625
BWUH30-2083
BWUH30-2403
BWUH30-4803
BWUH30-6003
30.0
30.0
30.0
30.0
102390
102390
102390
102390
208
240
480
600
3
3
3
3
24
24
24
24
83.9
72.3
36.1
28.9
208
240
480
600
1/3
1/3
1/3
1/3
1625
1625
1625
1625
BWUH40-4803
BWUH40-6003
40.0
40.0
136520
136520
480
600
3
3
24
24
46.2
38.5
480
600
1/3
1/3
1625
1625
BWUH48-4803
BWUH48-6003
48.0
48.0
163824
163824
480
600
3
3
24
24
57.8
46.2
480
600
1/3
1/3
1625
1625
11
CFM
Outlet
400
400
400
700
700
1400
1400
1400
1800
1800
KW
3.3
5.0
7.5
10.0
15.0
20.0
25.0
30.0
40.0
48.0
H
RPM
Outlet
500
500
500
660
660
1000
1000
1000
1000
1000
A
G
F° Temp
Rise Outlet
26
40
60
45
45
45
56
68
70
84
Air Throw
Ft.
20
20
20
28
28
35
35
35
42
42
Mounting
Bracket
A5520
A5520
A5520
A5520
A5520
W5550
W5550
W5550
W5550
W5550
Weight
58
58
58
64
64
158
158
158
193
193
E
Dimension Data
C
Heater
Size
3-7.5
10-15
20-30
40-48
D
B
Figure 1
Rec. Mtg.
Height/Ft.
6
6
6
6
6
6
6
6
6
6
Figure 2
Figure 3
A
12
14
16
18
B
18
19
27
31
C
19.75
21.75
28.75
30.75
D
15.25
15.25
19.50
19.50
E
16.25
18.00
17.50
19.50
F
6 ft.
6 ft.
6 ft.
6 ft.
G
8.00
8.00
15.50
21.75
H
6.00
6.00
4.50
2.75
F
COLUMN STABILIZING
COMPONENTS
MOUNTING
BRACKET
ATTACHMENT
ASSY.
Mounting Bracket Kits
Ideal for use in buildings
that have substantial walls.
Arm (only) can be bolted
directly to structure steel.
Simple and economical if
adequate overhead
structure exists. Requires
1/2" pipe, cut and threaded
(not supplied).
WALL BRACKET
ROOF OR
OVERHEAD
STRUCTURE
MOUNTING ARM
Particularly useful in
buildings with
insufficient strength
to use other type of
mounts. Requires 3
1/2" pipe (4" O.D. not supplied).
3 1/2" SCHEDULE 40
(PIPE) (NOT SUPPLIED)
1/2" PIPE
(NOT SUPPLIED)
BASE ASSEMBLY
A5520
3.3-15 kw only
WALL OR STRUCTURE
WMK
HMK
PMK
Optional - Wall Mounted Thermostat
The T109 series of controls is intended for
use in harsh environments. They tolerate
continuous spraying with water, high
humidity, airborne contaminates and
moderately corrosive conditions. The nickel
plated sensing bulb is attached directly to
the bottom of the case where it is shielded
from damage or accumulators of insulating
particles. The molded Noryl case is sealed
at the cover with a neoprene gasket and
the adjusting knob opening is closed with
a lubricated 0 ring. Underwriters
Laboratories has tested the T109 and found
it meets the requirement for NEMA 4x
enclosures.
12
Raintight Industrial Thermostat
High levels of accuracy and sensitivity are
provided by the T109. Switching is done by
heavy duty, precision, snap action switches.
Setting is accomplished by rotating the
adjusting knob. The dial face is printed
with large contrasting numbers and letters
on a lustrous background for good
visibility. Force and motion for switch
actuation are provided by changes in
temperature expanding or contracting the
fluid contained with the sensing bulb and
transmitted hydraulically and through an
appropriate linkage to the switch operator.
Color coding clearly identifies the function
of each conductor.
Model Controls
Switch
Action
TA109 Heating
SPST
TD109 Heating, 2pole 2 SPST
Operation
Opens circuit
on temp rise
Opens two
switches on
temp. rise
The T109 is available with the following
characteristics: Range 40 - 100°F Differential: 2.5°F
Electrical Ratings:
120VAC 240VAC 277VAC
Full Load
16.0A
12.0A
10.0A
Locked Rotor
80.0A
60.0A
50.0A
Non-inductive
24.0A
25.0A
22.0A
Pilot Duty
125VA
125VA
125VA
BRASCH
HAZARDOUS LOCATION Heaters
Explosion Proof Electric Heater
Epoxy Coated
14 Ga. Cold Rolled Steel Cabinet
Pressure Relief Valve
Rated at 200 PSI
Spiral Aluminum Finned
Tubular Steel Heat Exchanger Core,
Liquid Filled Operation
14 Ga. Steel
Adjustable Louvers
with Minimum Position Stops
24V Control Circuit
Transformer
Cast Aluminum Control Enclosure
with Oversized Opening
Heavy Duty Load
Carrying Contactor
Etched Aluminum Data Plates
Riveted to Case
Built-in
Thermostat 45-90°F (optional)
■ Liquid to air heat exchanger with low
watt density heating elements in
ethylene glycol solution that provides
freeze protection to -45°C.
■ Ball bearing permanently lubricated
explosion proof motor. Chrome
plated guard meets OSHA
requirements.
■ Heavy-duty control contactor with 24
Volt control circuit provided on all
models.
Copper Sheathed
Immersion Type
Heating Element
CAUTION
Before installing and operating heaters
confirm location, classification and
properties of flammable vapors, liquids,
gases, dusts and fibers which may be
present. Each room, section or area
should be considered individually.
For further information consult National
Electric Code and National Fire Prevention
Association (ANSI) standards. All models
conform to OSHA requirements when
mounted at any height.
For Class I, Group D,
Divisions 1 & 2 and Class II,
Groups E, F and G,
Divisions 1 & 2
13
BHUH Features
Designed for rugged industrial
applications in hazardous locations
where the possibility of explosion or
fire exists due to the presence of
certain flammable gases, vapors,
powdered metals or dusts.
Abbreviated descriptions of UL classes,
groups and divisions. Before selecting
any heater for a particular application,
refer to Article 500 as well as other
standards referenced in the National
Electric Code.
■ Permanently sealed, liquid to air,
■ Ethylene Glycol to water mixture
Class I: Equipment does not have
surface operating temperature in
excess of the ignition temperature of
the specific gas or vapor.
■ High-performance electric motor
Class II: Equipment does not have
surface temperature greater than the
ignition temperature of the specified
dust.
finned tube heat exchanger core.
used a heat transfer fluid in the
heater core, providing -45°C, (-49°F)
freeze damage protection.
driven fan blows air across finned
tubes to effect uniform heat transfer
and area heat distribution.
■ Automatic Reset capillary type high
limit provides high temperature
regulation and is rated for 100,000
cycles of service.
■ Stainless steel and aluminum
pressure relief valve for overpressure condition.
■ 14 Ga. steel cabinet epoxy paint
finish contains heater core, motor
and fan assembly.
■ Narrow gap safety fan guard shields
all moving parts.
■ Adjustable louvers allow directional
control of air.
■ Copper conductor wires enclosed in
rigid metal conduits carry all
electrical power.
(Box lugs furnished for field
connections within an approved
enclosure)
Group D: Atmospheres such as but
not limited to acetone, alcohol,
gasoline, lacquer solvent vapors,
natural gas, propane or other gases or
vapors of equivalent hazard.
Group E: Atmospheres containing
combustible metal dust regardless of
resistivity, or other combustible dust of
similar hazard characteristics having
resistivity of less than 10° OHMCentimeter.
Group F: Atmospheres containing
carbon black, charcoal, coal or coke
dust.
Group G: Atmospheres containing
combustible dust having resistivity of
10° OHM-Centimeter or greater.
Division I: A location in which
ignitable concentrations of flammable
material exist under normal operating
conditions.
Division II: Locations in which
flammable materials will normally be
confined within closed containers and
escape only in the case of accidental
rupture, breakdown or during
maintenance operations. Any
equipment approved for Division I is
automatically also approved for
Division II.
Built-in Hydraulic Thermostat
optional on all BHUH models
■ Stainless steel bulb and capillary
■ 125 VA pilot duty
■ Used on 24 volt, 120 volt or 208-240
volt line voltage control
■ 60° to 90° temp range
■ Adjustable from front of unit with
screwdriver.
Hazardous Location
Thermostat Wall Mounted
Specifications
■ TW161 Single Pole
■ 22 Amps 125-277 Vac
■ 3/4 HP 125 Val
■ 1 1/2 HP 250-277 Vac
■ 5 1/2" H x 5 1/2" W x 4 3/4" D
■ Can be used for heating or cooling
applications
Installation Conditions
1. Refer to owner's manual.
2. The BHUH Series electric unit
heaters have been listed by the
Underwriters Laboratories for
maximum surface temperatures. Use
only in atmospheres having an
ignition temperature higher than
165°C (T3B) for Class I operation and
165°C (T3B) for Class II.
3. Altitude restrictions - see
specification table.
4. Heater must be installed in
permanently mounted upright
position and connected to fixed
power supply.
5. Do not operate in atmospheres
corrosive to steel and aluminum.
14
Specifications
BHUH Model A
UL
Capacities
Available
UL Listing
UL Temperature Code
AIR
CFM@70°F, (21°C)
FPM
Air Temp, Rise
BHUH Model C
10KW 34,120 BTU
15KW 51, 180 BTU
20KW 68,240 BTU
25KW 85,300 BTU
580
1000
3KW 16.3°F*
5KW 27.2°F
7.5KW 40.8°F
24 ft.
8 ft.
7.5KW 5500 ft.
3* & 5KW 8000 ft.
10KW 8000 ft.
Ambient Temp. Limits
Min. -45°C, (-49°F)
Max. 40°C, (104°F)
RPM
Propeller Fan 3 Wing, Alum.
Motor
1725
1725
12" Dia.
16" Dia.
Motor Voltage/Phase same as element. PSC,
Explosion-Proof, Permanently Lubricated, Ball Bearing
1/4 HP
1/4 HP
Horizontal Throw
Max. Mtg. Height from floor
Max. Operational Altitude
MTR/BLADE
3KW 10,236 BTU*
5KW 17,060
7.5KW 25,590 BTU
Class I, Group D, Divisions 1 & 2
Class II, Groups E, F & G, Divisions 1 & 2
Class I: T3B 165°C (329°F)
Class II: T3B 165°C (329°F)
BHUH Model B
1500
1600
10KW 21.0°F
40 ft.
10 ft.
2450
2000
15KW 19.0°F
20KW 25.5°F
25KW 32.3°F
43 ft.
13 ft.
25KW 5500 ft.
20KW 7000 ft.
15KW 8000 ft.
1725
20" Dia.
1/2 HP
HEAT
EXCHANGER
Heat Exchanger
Core Material
Heat Transfer Fluid
Heating Elements
Heavy wall, liquid filled with immersion elements.
Steel with aluminum fins.
Ethylene-glycol solution, protected to -45°C (-49°F)
Three, low watt density, immersion type copper sheathed.
PROTECTION
Thermal Cut-Out
Relief Valve
Snap action capillary type rated 100,000 cycles pilot duty.
Stainless steel and aluminum construction, opens @ 200 PSI
CABINET
Cabinet
Fan Guard
Fasteners
Conduit Material
Control Box
Hanger Connections
14 gauge cold rolled steel, epoxy coated, individually adjustable louvers.
Wire, less than 1/4" spacing, plated, split design for easy removal
Zinc plated.
3/4 rigid metal
Cast aluminum with over-sized opening. (2) 1" NPS with conduits stops for field wiring.
5/8" NC tap, 2 holes.
CONTROLS
Contactors
Heavy duty, break all ungrounded conductors rated 100,000 cycles @ full load.
Built-in and pre-wired.
Built-in and pre-wired - 24 volt secondary (standard) 120 volt (optional)
24 volt standard on all models
120 volt optional on all models (not available on 600V models)
Line voltage on 208 and 240 volt models only
Explosion proof 40° - 90°F operating range 22A
125-277VAC - 3/4HP @ 125VAC; 1 1/2 HP @ 250-277VAC
125 VA pilot duty Sensing Bulb and Capillary made from 300 Series Stainless Steel ASW Tube
132 lbs. 3 & 5KW
158 lbs. 10KW
190 lbs. 15 & 20KW
167 lbs. 7.5KW
225 lbs. 25KW
Control Transformer
Control Circuits
Remote wall mounted
Thermostat Model TW161
Built-in "T" Option
Heater Net Weight
Shipping Weight
15
Mounting Bracket Kits
Roof or Overhead
Structure
1/2" Pipe
(Not Supplied)
Column Stabilizing Components
Mounting Arm Assy.
Attachment Assy.
BHHM
Hanging Mounting Kit
Simple and economical if adequate
overhead structure exists. Requires 1/2"
pipe, cut and threaded (no supplied).
3 1/2" Schedule 40 (Pipe),
(Not Supplied)
Attachment
Assembly
3 to 7.5KW Models
10KW Models
15 to 25KW Models
HANGING KITS
BHHM
All Models
WALL MOUNTING KITS
BHWM 75
3 to 7.5KW Models
BHWM 10
10KW Models
BHWM 25
15 to 25KW Models
Wall Bracket
Base Assembly
PIPE KITS
BHPM 75
BHPM 10
BHPM 25
Mounting Arm
Sample Specifications
BHPM
Pipe Mounting Kit
Particularly useful in buildings with
insufficient strength to use other type
of mounts. Requires 3 1/2" pipe (4" O.D.
- not supplied).
Wall or Structure
BHWM
Wall Mounting Kit
Ideal for use in buildings that have
substantial walls. Arm only can also be
bolted directly to structural steel.
Physical Dimensions
Inches
Model
A
B
3Ø
BHUH-A
17 3/4
22 3/8
BHUH-B
20 3/4
BHUH-C
24 3/4
C
1Ø
D
E
F
G
19 3/4
20 5/8
16 1/4
10 1/2
14
3
26 3/8
20 3/4
21 5/8
20 1/4
11 1/2
18
4
30 3/8
22 1/2
—
24 1/4
12 1/2
22
4 1/2
Contactors shall supply and install Brasch type
BHUH explosion-proof suspended fan-forced unit
heaters of the capacity and voltage listed on the
plans. Heaters shall be UL listed for Class I, Group D,
Divisions 1 & 2 and Class II, Groups E, F and G,
Divisions 1 & 2, UL temperature code shall be T3B
(165°C) for Class 1, and T3B (165°C) for Class II,
indicating maximum operating surface
temperatures.
Heat exchangers shall be heavy walled, liquid filled,
with three, low watt density, immersion type
copper sheathed elements hermetically sealed into
the core along with the high limit thermal cut-out.
Heat transfer fluid shall be ethylene-glycol solution,
protected to -45°C (-49°F).
Motors shall be PSC, explosion-proof, permanently
lubricated, ball bearing type, 1725 rpm.
Contactors shall be built-in and pre-wired into an
explosion-proof enclosure. Contactors shall be
heavy duty and break all ungrounded conductors
and be rated for 100,000 cycles at full load. Control
transformers shall be built-in and pre-wired.
Control circuits shall be 24 volt.
Cabinet shall be 14 gauge cold rolled steel, epoxy
coated plated fan guard shall have less than 1/4
inch spacing to conform with OSHA requirements.
All fasteners shall be zinc plated. Heater conduits
shall be cadmium plated seamless steel or
aluminum.
Mounting Kits
Brasch offers three mounting kits available for the
Series: the BHPM Pipe Mounting Kit; the BHHM
Hanging Mounting Kit; and the BHWM Wall
Mounting Kit. Each of these is illustrated and
described in this brochure.To order, specify the
type of kit with the heater model desired. Consult
our Sales Department for details.
16
Performance Data
Model
Volts
Phase
KW
Heater
Amps
Line
Amps
BTU/HR
BHUH 3-2081
BHUH 3-2083
BHUH 3-2401
BHUH 3-2403
BHUH 3-4803
BHUH 3-6003
208
208
240
240
480
600
1
3
1
3
3
3
3.0
3.0
3.0
3.0
3.0
3.0
14.4
8.3
12.5
7.2
3.6
2.9
16.3
9.8
14.8
8.6
4.3
3.5
10250
10250
10250
10250
10250
10250
16.6
16.6
16.6
16.6
16.6
16.6
BHUH 5-2081
BHUH 5-2083
BHUH 5-2401
BHUH 5-2403
BHUH 5-4803
BHUH 5-6003
208
208
240
240
480
600
1
3
1
3
3
3
5.0
5.0
5.0
5.0
5.0
5.0
24.0
13.9
20.8
12.0
6.0
4.8
26.0
15.4
23.1
13.4
6.7
5.4
17100
17100
17100
17100
17100
17100
BHUH 7.5-2081
BHUH 7.5-2083
BHUH 7.5-2401
BHUH 7.5-2403
BHUH 7.5-4803
BHUH 7.5-6003
208
208
240
240
480
600
1
3
1
3
3
3
7.5
7.5
7.5
7.5
7.5
7.5
36.1
20.8
31.3
18.0
9.0
7.2
38.0
22.3
33.6
19.4
9.7
7.8
BHUH 10
BHUH 10-2083
BHUH 10-2401
BHUH 10-2403
BHUH 10-4803
BHUH 10-6003
208
240
240
480
600
3
1
3
3
3
10.0
10.0
10.0
10.0
10.0
27.8
41.7
24.1
12.0
9.6
BHUH 25
BHUH 15-2083
BHUH 15-2403
BHUH 15-4803
BHUH 15-6003
208
240
480
300
3
3
3
3
15.0
15.0
15.0
15.0
BHUH 20-4803
BHUH 20-6003
480
600
3
3
BHUH 25-4803
BHUH 25-6003
480
600
3
3
Size
BHUH 7.5
Air Temp
Min Cir
Rise Deg F Ampacity
Max Fuse
Amps
Min. Wire
AWG?*
20.4
12.3
18.5
10.8
5.4
4.4
25
15
20
15
15
15
10
14
12
14
14
14
27.6
27.6
27.6
27.6
27.6
27.6
32.4
19.2
28.9
16.8
8.4
6.8
35
20
30
20
15
15
8
12
10
12
14
14
25600
25600
25600
25600
25600
25600
41.4
41.4
41.4
41.4
41.4
41.4
47.5
27.9
42.0
24.3
12.2
9.8
50
30
45
25
15
15
8
10
8
10
14
14
29.3
44.0
25.5
12.7
10.2
34150
34150
34150
24150
34150
21.7
21.7
21.7
21.7
21.7
36.6
55.0
31.8
15.9
12.8
40
60
35
20
15
8
6
8
12
14
41.6
36.1
18.0
14.4
43.5
38.1
19.0
15.2
51200
51200
51200
51200
19.2
19.2
19.2
19.2
54.4
47.6
23.8
19.0
60
50
25
20
6
8
10
12
20.0
20.0
24.1
19.2
25.1
20.0
68300
68300
26.2
26.2
31.3
25.1
35
30
8
10
25.0
25.0
30.1
24.1
31.1
24.9
85400
85400
32.8
32.8
38.8
31.1
40
35
8
8
*Supply conductors must be suitable for 90°C
Controls
Thermostats
■ Standard unit includes 24 volt
■ Add suffix "T" to model # for built-in
■ 120 volt option — delete 24 suffix
■ Remote thermostat — see wall
transformer and contactors
on model # — add 120 to model #
thermostat
thermostat specifications on page 16
■ 600 volt models available with 24
volt controls only
17
18
Fusing Not Required on 24V Class II
Transformer
3 Phase Heater with 120 Volt Control
Shown:
BRASCH
ARCHITECTURAL ELECTRIC CONVECTORS
Architectural Convectors are custom
built with unsurpassed craftsmanship.
Standard length and custom fitted
draft barrier, sill height and pedestal
heaters meet the most demanding
architectural specifications. Low initial
cost and negligible maintenance make
them suitable for all projects stressing
energy and cost optimization.
■ Front cover enclosures are available
Application
■ Aluminum sheath element has
Brasch Architectural Convectors are
ideal for perimeter heating of schools,
lobby areas, public buildings, nursing
homes and other commercial
applications providing individual room
control and warm air draft protection
for wall and window exposures.
Heating capabilities to 750 watts per
foot in a wide variety of cabinet styles
provide continuous clean horizontal
lines to complement any building
project. Enclosures are available in
standard and special painted colors and
in clear and color anodized finishes.
in continuous lengths up to
maximums (see Table 1) to eliminate
unnecessary splices (special order).
Aluminum only.
■ Full length thermal cutout with
automatic reset prevents
overheating when airflow is blocked.
Heating elements mounted on free
floating nylon bushings for quiet
operation.
mechanically bonded fins for cooler
operating temperatures.
■ Built-in 1/2 inch EMT raceway allows
field wiring from either end. (3/4
inch EMT also available).
■ Control section can accommodate
optional controls as required.
■ Junction boxes in heaters (except
DBTS) will accept most controls (see
page 23).
■ Optional controls include
thermostat, disconnect (with or
without 20 amp fuse and fuse
block), power relay, transformer relay
and PE switch.
■ Accessories (see page 23) include
end caps, wall trim splice plates,
inside and outside corners, mullion
fronts, inside fillers, blank sections,
control sections, 1/4 inch wire mesh
under grille, pedestals and duplex
receptacles.
■ Disconnect switch and relay,
separately or in combination with
thermostat, allow for right hand wire
entry. Integral thermostat allows
wire entry at either end.
Finishes
The standard finish on all heaters is ASI
Bronze paint. Other standardized paint
colors which are available are Eggshell
White, Beige, Gray, and Black. Anodized
finishes can be provided on aluminum
enclosure heaters. Those available are
204R1 Clear, 313R1 Bronze and Black.
Actual samples of any of the foregoing
finishes can be provided upon request.
Additionally, special painted colors can
be provided to match submitted color
samples. Heater backs (except RDBTPD) are not finished unless specified.
Construction Features
■ Snap-fit construction saves
installation time, eliminates
unsightly screws.
Snap-fit Construction
Back Cover
■ Pencil-proof louvers have 1/4 inch
spacings.
1/4" Pencil-proof Louvers
■ Heavy gauge extruded aluminum
grilles with 15 degree angled
louvers direct heated air away from
wall for cleaner operation.
Junction Box
Features Built-in
Thermostat And
Disconnect if Required
■ Enclosures are fabricated of heavy
gauge materials to assure
compliance with architectural
requirements to withstand years of
rough usage. All enclosures can be
finished to match window mullions,
wall surfaces and interior decor.
High Efficiency
Bonded Aluminum
Fins Assure Cool
Surface Temperatures
■ Multiple heaters factory wired on
the same backplate are available up
to maximum front enclosure lengths
(see Table 1).
Full Length
Thermal Overload
Protection
Aluminum Front Cover
19
Standard Profile Draft Barriers
DBF & DBT
Dual Element Draft Barriers
DBCF & DBCT
Rounded Pedestal Draft
Barriers RDBT-PD
These heaters have a 6" x 3 1/2" profile
with a snap-fit extruded aluminum
enclosure and a 12 ga. aluminum
backplate. The DBF is available with up
to 250 watts per foot of heating and the
DBT with up to 300 watts per foot of
heating. DBF is designed for floor
mounting with front inlet and top
outlet. DBT is designed for wall
mounting with bottom inlet and top
outlet but pedestals can be supplied for
floor mounting.
These heaters have a 7" x 5" profile with
a snap-fit extruded aluminum
enclosure and a 10 ga. aluminum
backplate. The DBCF is available with up
to 650 watts per foot of heating and the
DBCT with up to 750 watts per foot of
heating. DBCF is designed for floor
mounting with front inlet and top
outlet. DBCT is designed for wall
mounting with bottom inlet and top
outlet but pedestals can be supplied for
floor mounting.
The RDBT-PD heater has a rounded 6" x
7" profile with a flat bottom and a flat
top and has an extruded aluminum
enclosure.The heater is supported on 1
3/4" - 2 1/4" adjustable pedestals.The
RDBT-PD is available with up to 300
watts per foot of heating.The heater is
designed for floor mounting with
bottom inlet and top outlet.
Low Profile Draft Barriers
DBTS & CB
Sill Height Draft Barriers ASHDB
The DBTS heater has a 4" x 2 5/8" profile
and the CB heater has a 4 1/2" x 2 5/8"
profile. Both have a snap-fit extruded
aluminum enclosure and a 14 ga.
aluminum backplate.The DBTS heater is
available with up to 300 watts per foot of
heating.The CB heater is available with up
to 250 watts per foot of heating. Both are
designed for wall mounting with bottom
inlet and top outlet but pedestals can be
supplied for floor mounting.
Standard Elements
The following standard elements are
available in even foot lengths at the
watts per foot heat outputs shown for
single phase voltages:
277
240
208
120
________________________________
125
94
93
125
165
124
106
188
188
141
113
250
200
150
141
250
188
188
333
250
212
375
282
250
DBCF, DBCT and ASHDB can be furnished
with any combination of two elements.
Special elements at different heat
outputs and/or lengths are available.
The ASHDB has a standard 5 1/2" depth
and heights are available from 8" to 20"
in 1/16" increments—specify height
required. The front cover is 16 ga. steel
and the backplate is 18 ga. steel. The
grille is extruded aluminum. The
ASHDB is available with up to 500
watts per foot of heating. The heater is
designed for wall mounting with
bottom inlet and top outlet. Pedestals
can be supplied for floor mounting of
8" height only.
Table 1: Model Comparisons
Type
Enclosure
Dimension
(H x D)
DBF
Standard
6" x 3 1/2"
Front Inlet
Top Outlet
250
.100" Extruded
Aluminum/15 Ft.
Extruded
Aluminum
Floor
Painted
Bronze
Color or Clear Anodized
Std. and Spcl. Painted Colors
DBT
Standard
6" x 3 1/2"
Bottom Inlet
Top Outlet
300
.100" Extruded
Aluminum/15 Ft.
Extruded
Aluminum
Wall
Painted
Bronze
DBTS
Low Profile
4" x 2 5/8"
Bottom Inlet
Top Outlet
300
.070" Extruded
Aluminum/15 Ft.
Extruded
Aluminum
Wall
Painted
Bronze
CB
Low Profile 4 1/2" x 2 5/8" Bottom Inlet
Top Outlet
250
.070" Extruded
Aluminum/15 Ft.
Extruded
Aluminum
Wall
Painted
Bronze
Model
Airflow
Maximum
Heat
Watts/Ft
Front
Enclosure/
Max Length
Finishes
Grilles
Mounting
Standard
Optional
DBCF
Dual Element
7" x 5"
Front Outlet
Top Outlet
650
.100" Extruded
Aluminum/12 Ft.
Extruded
Aluminum
Floor
Painted
Bronze
DBCT
Dual Element
7" x 5"
Bottom Outlet
Top Outlet
750
.100" Extruded
Aluminum/12Ft.
Extruded
Aluminum
Wall
Painted
Bronze
ASHDB
Sill Height
8" - 20"
X 5 1/2"
Bottom Inlet
Top Outlet
500
16 ga. Steel/
10 Ft.
Extruded
Aluminum
Wall
Painted
Bronze
RDBT-PD
Rounded
6" x 7"
Bottom Inlet
Top Outlet
300
.100" Extruded
Aluminum/12 Ft.
Extruded
Aluminum
Floor
Painted
Bronze
20
Accessories
Controls
IC
OC
EC
CS
ITS
Inside Corner
Outside Corner
End Cap—left or right
(N/A RDBT-PD)
IEC
Inside Fitting End Cap—
left or right (N/A DBTS, CB,
DBCF, AHSDB)
WT
Wall Trim
SP
Splice Plate, 1 1/2" - 6"
(N/A RDBT-PD)
MF
Mullion Front to 1 foot
(DBF, DBT, CB only)
IF
Inside Filler to 1 foot
(DBF, DBT, DBCT only)
BS
Blank Section—specify
length (1'-0" to 10'-0")
ASB Conduit 3/4" Raceway
(1/2" Standard)
ASB Mesh 1/4" wire mesh under grille
ASB DR
Duplex Convenience
Receptacles
ASB PD
Pedestals—specify 2" or 3"
(3" over 300W/Ft)
ITD
IDS
IDSF
PR
TR
PE
Control Section—6" or 12"
Single Pole Thermostat—
20 amps
Double Pole Thermostat—
20 amps
Double Pole Disconnect—
20 amps
Double Pole Disconnect
w/20 amp fuse and fuse
block
Power Relay—18 amps
Transformer Relay
Pressure Electric Switch
DBTS requires a CS with any controls. A
six inch CS will accept 1 or 2 controls, a
twelve inch CS will accept 3 controls. CB
will accept only a thermostat,
disconnect or power relay in the
junction box. More or other controls
require a CS. All other heaters will accept
any two of the following controls to be
installed in the junction box—
disconnect and thermostat, disconnect
and power relay or disconnect and PE
switch. Increase the length of the heater
enclosure by 6" or 12" when using a
control section. Integral thermostats are
mounted on the left side unless
otherwise specified; integral disconnects
are mounted on the right side unless
otherwise specified; integral relays are
mounted on the left side unless
otherwise specified. Heaters are wired
for either right or left hand entry where
there are no controls. Otherwise, entry is
in the junction box containing the
controls.
How to Order
Example: Model Number
DBF-2200-277-ASI Bronze-ITS
Model
Length (in feet)
When Ordering, specify:
■ Model Number
Watts per foot
Voltage
■ Length (in feet)
■ Watts Per Foot
Finish Color
■ Voltage
Built-in Controls
■ Finish Color
■ Built-in Controls
21
Sample Specification
Electric convectors shall be architectural series by Brasch Manufacturing Co., Inc. as scheduled:
Series Description
Height By Depth
DBF—Draft Barrier (front inlet)
6" x 3 1/2"
DBT—Draft barrier (bottom inlet)
6" x 3 1/2"
DBTS—Draft barrier (bottom inlet)
4" x 2 5/8"
CB—Draft barrier (bottom inlet)
4 1/2" x 2 5/8"
DBCF—Draft barrier (front inlet)
7" x 5"
DBCT—Draft barrier (bottom inlet)
7" x 5"
ASHDB—Sill Height (bottom inlet)
8" - 20" x 5 1/2"
RDBT-PD Rounded Pedestal (bottom inlet)
Draft barrier shall be fabricated of
aluminum extrusions with 1/4" pencilproof louvers at a 15" angle for
improved convection and cleaner
operation. Cabinets to have clean
square corners, suitable for front or
bottom intake and heating at watts per
foot as scheduled.
Sill height convectors shall be
fabricated of 16 gauge furniture steel
with 14 gauge extruded aluminum,
pencil-proof louvers installed at a 15°
angle for improved convection and
cleaner operation.
Enclosure covers, louvers and end caps
will snap-fit together without screws or
fasteners for easy maintenance. Wallmounted units shall have pre-punched
slots for quick installation. Pedestal and
22
6" x 7"
mullion-to-mullion units to have solid
finished backs without slots. Standard
backed acrylic bronze or optional
painted or anodized finish will be
provided in architectural colors as
scheduled.
Provide full length linear thermal
cutout with automatic reset on all units
to prevent overheating from blocked
airflow. Provide built-in EMT raceway
with factory wiring and 3/4" knockouts
on side and rear of junction boxes at
each end. Heater to accept field wiring
at either end when optional controls
are not included. Blank sections shall
be fully enclosed for branch circuit
wiring. Heating elements shall be
aluminum sheath with mechanically
bonded fins to maximize heat transfer
and limit fin temperatures to 330°F.
Elements shall be centered in freefloating nylon bushings for quiet
operation. Per schedule, controls
include single or double pole
thermostats, disconnect switches, and
relays. Thermostats shall be adjustable
(tamperproof ) through discharge
louver. Separate control sections shall
include factory mounted PE switches,
mercury contactors, circuit breakers
and control transformers (as
scheduled).
Accessories shall include end caps, wall
trim, splice plates, inside and outside
corners, and blank sections of
matching material for visual continuity.
All heaters and controls shall be listed by
Underwriters Laboratories, Inc. and
warranted for one year from date of sale.
Limited Warranty
All Brasch Manufacturing Company,
Inc. products covered in this bulletin
are warranted against defects in
workmanship and materials for one
year from date of purchase. This
warranty does not apply to damage
from accident, misuse or alteration; nor
where the connected voltage is more
than 5% above product nameplate
voltage; nor to equipment improperly
installed or wired or maintained in
violation of installation instructions.
This warranty is valid only in the fifty
states of the United States. No other
written or oral warranty applies. No
employee, agent, dealer or other
person is authorized to extend
warranty on behalf of Brasch
Manufacturing Company.
The customer shall be responsible for
all costs incurred in the removal or
reinstallation and shipping of the
product for repairs. Inoperative units
should be returned to Brasch, attention
of Service Manager for repair or
replacement at our option. Product will
be returned freight prepaid. Repair or
replacement is the exclusive remedy
available from Brasch who is not liable
for damages of any kind, including
incidental and consequential damage.
2310 Millpark Drive
M a r y l a n d H e i g h t s , MO 63043
314.291.0440 - Fax 314.291.0646
e-mail: [email protected]
www.braschmfg.com
©Brasch Manufacturing Company, Inc.

Bulletin A-180b - Brasch Manufacturing

Transcription

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