2024年4月17日发(作者：)
BRAUN PASS THRU DRYER
500 PT – Vertical Slide Door - NGF/PGF
G.A. BRAUN, INC.,79 GENERAL IRWIN BLVD. NORTH SYRACUSE, NY. 13212, 315-475-3123
TM-500PT-GAS FIRED-VERTICAL SLIDE DOOR 110817
11/8/17
Page 1 of 5
BRAUN PASS THRU DRYER
500 PT – Vertical Slide Door - NGF/PGF
G.A. BRAUN, INC.,79 GENERAL IRWIN BLVD. NORTH SYRACUSE, NY. 13212, 315-475-3123
RECOMMENDED CAPACITY
Terry: 250 – 600 lbs clean dry weight [113 - 272 kg]
Blended Fabric: 250 – 600 lbs clean dry weight [113 - 272 kg]
Barrier Fabrics: 150 – 500 lbs clean dry weight [113 - 227 kg]
(ISO Gowns, non-breathable material, etc.)
Industrial Mats: 250-600 lbs clean dry weight [113 - 272 kg]
*Running under 300 lbs [136 kg] clean dry weight with any product may result in
reduced dryer performance and efficiency
**Running over recommended capacities may result in poor dryer performance
and reduced efficiency
SPECIFICATIONS CONTINUED
Minimum air pressure required, filtered and dry
Air consumption including lint blow down*
4 Water supply
(Fire suppression system) (40psi minimum)
5 Air intake duct connection (Optional SPLIT duct)
90-100psi [620kpa]
60cfm [1.7m
3
/min]
3/4”NPT
28 1/2" x 25 1/4”
[718mm x 641mm]
Air intake duct connection (COAXIAL duct) 28 1/4” x 34 1/8”
[717mm x 866mm]
Air intake duct size SEE PAGE 3
7 Exhaust duct opening (1 ½” flanged perimeter) 17” x 14”
[432mm x 355mm]
Exhaust duct volume 10,000cfm
3
[283m/min]
Exhaust duct size SEE PAGE 3
Maximum external duct total static pressure allowed 1/2” wc. [13mm wc]
*- Consumption based on lint blow down cycle at 32 (programmable) seconds
consuming approx 60 ft.
3
[1.7m
3
/min]Programmed collection times can be
increased depending on lint type, causing an increase in air consumption.
LINT COLLECTION
On-board-
Single screen with #62 stainless steel screen mesh, single stage with automatic
screen blow down/lint removal 2639 in.
2
[1.53m
2
]
FLOOR LOADING
Weight of dryer assembly * 9,220 lbs [4,182 kg]
Weight of operational loaded dryer
(at rated capacity and 60% moisture retention)
10,120 lbs [3,983
kg]
Lagging 3/4” x 6”lg (4 req’d)
*- Does not include weight of ducting or utility connections. See notes on
ductwork.
FOUNDATION
Floor must be able to support machine, suggested minimum 6”, 2500psi
concrete. This is necessary to maintain floor integrity and prevent pull out of
lagging anchors.
OPENING REQUIREMENTS TO RECEIVE UNIT
Height: 130” [3,302mm] Width: 80” [2,032mm] (include 3” rolls & 3” skids)
Refer to rigging instructions in O&M manual
SPECIFICATIONS
Gas Models NGF/PGF
1Gas supply connection
Natural gas supply pressure
Propane gas supply pressure
2 Gas vent connection (CSA)(IRI)
Burner firing range, NGF (BTU/HR x 1000)
Nominal firing range, NGF (BTU/HR x 1000)
Combustion Blower
Ignition type
500 PT Models
165 ft
3
[4.67 m
3
]
60”w x 50”h
[1524mm x 1270mm]
Loading height – One way tilt 57 1/2” [1,461mm]
Unload height 37 1/2” [953mm]
Minimum dryer spacing, center to center 153 1/2” [3,899mm]
Min dryer spacing if placing lint vacuum between dryers
159 1/2” [4,051mm]
Maximum machine depth 139” [3,531mm]
3Compressed air connection 1”NPT
Basket volume (78”dia. x 60”deep)
Door opening
SHIPPING WEIGHTS/SIZES
Optional 3 piece disassembly (not including skids)
Shell dimensions 90”H x 88 1/2”W x 77”D
[2286mm x 2248mm x 1956mm]
Shell weight 4600 lbs [2,087 kg]
Base dimensions 39 1/2”H x 92”W x 69”D
[1003mm x 2338mm x 1753mm]
Base weight 2520 lbs [694 kg]
Tower dimensions (laying down) 36 1/2”H x 70”W x 122”D
[927mm x 1778mm x 3099mm]
Tower weight 2,020 lbs [916 kg]
Additional break down is available on the shell if necessary. Contact sales.
2”NPT
18” w.c. [457mm wc]
7” w.c. [178mm wc]
1”NPT
100 to 2800
800
500cfm [14.2m
3
/min]
Direct spark
Customer is responsible to meet all Local, State,
and Federal Code requirements, to include
obtaining any applicable permits to install or
operate this equipment.
EXPANSION ANCHOR
3/4" DIA. x 6" LG.
3/4" DRILL
IN CONCRETE
4 PLACES.
BASE FRAME
(TO BE LEVEL)
CONCRETE FLOOR
Please consult Braun Inside Sales for all LOW NOx
emissions requirements
8 ELECTRICAL SPECS
3-PHASE SUPPLY VOLTAGE/FREQUENCY 208/3/60 240/3/60 480/3/60 600/3/60
Conduit Connection1 1/4"1 1/4"1 1/4"1 1/4"
Machine Disconnect (Internally Mounted Circuit Breaker) (Amps)1251256060
Machine Full Load Amps (FLA)95884636
MAIN BLOWER 25HP (FLA)66623225
BASKET MOTOR 7.5HP(FLA)2221108
COMBUSTION BLOWER 1HP (FLA)4.13.61.81.4
Grounding: Ground machine to an earth ground (zero potential) per National Electric Code (NEC) section 250 and any applicable local codes. Use a
ground wire sized in accordance with NEC Table 250.122. Do not rely on conduit, machine anchorage, etc. Connect the ground wire between the ground
lug on the incoming power junction box on the machine and the external disconnect box or other location as required to assure a reliable earth ground.
Branch Circuit Protection: Size external fuses or circuit breakers per the recommended minimum branch circuit requirements listed above. Installation
of this branch circuit must be in accordance with the National Electric Code (NEC) and any applicable local codes.
o Use only Dual Element (Time-Delay) fuses FRN (up to 250V), FRS (250 to 600V).
o If an inverse time circuit breaker is to be used instead of fuses, it should have the same characteristics as FRN/FRS type fuses.
Wire Sizing: Wire shall be sized in accordance with the National Electric Code and any applicable local codes. The required wire size will vary with the
length of the wire run as well as any specific local codes. The use of THHN type copper supply conductors with a minimum of 90 deg C insulation is
strongly recommended.
TM-500PT-GAS FIRED-VERTICAL SLIDE DOOR 110817
11/8/17
Page 2 of 5
BRAUN PASS THRU DRYER
500 PT – Vertical Slide Door - NGF/PGF
G.A. BRAUN, INC.,79 GENERAL IRWIN BLVD. NORTH SYRACUSE, NY. 13212, 315-475-3123
EQUIPMENT SPECIFICATION
BRAUN 500PT-NGF/PGF DRYER
General-
Shell Continued-
Basket size 78”dia. x 60”deep
[1,1981mm x 1,524 mm]
Cylinder volume (Gross) 165 ft
3
[4.67 m
3
]
Nominal capacity _________500 Lbs [136 kg]
Cylinder opening (Usable) 60” [1524mm] Wide x
50” [1270mm] High
Basket rotation speed (fixed) 28rpm
Basket motor size 7.5hp [5.6kW]
Main blower motor size 25hp [18.6kW]
Combustion blower motor size 1hp [.75kW]
Overall dimensions (dryer not tilted & doors closed)
Refer to page 1
Overall dimensions (dryer tilted & doors open)
Refer to page 1
Basket Drive-
Single drive shaft
Drive shaft bearings (2)
Drive wheels (2)
Drive belt (single cog type)
Idler wheels (2) (Maintenance free)
Shell-
Construction 7ga Carbon steel cabinet type
Swing out face plates for easy, no-rigging required, access to basket and
seals
Drive and idler wheels removable through shell
On board lint collector
Removable blower housing contains blower motor and wheel.
Burner accessible through tower
INSTALLATION NOTES
1.
2.
3.
4.
All dimensions shown are inches. Millimeters are shown in brackets [ ].
These specifications are subject to change without notice. Please contact G.A. Braun for verification of, or to obtain the latest release.
Mechanical contractor shall install the main gas pressure reducing regulator and CSA approved gas shut off valve included with each dryer, for each dryer
installed. Failure to do so may result in unsatisfactory dryer performance.
An external compressed air tank reservoir with trim is provided for the dryer. This provides a volume of air to power the lint collection system. Stand alone
dryers will have an individual tank. Multiple dryers may share a tank reservoir. Mechanical contractor is responsible to mount and plumb tank(s). Contact
G.A. Braun for details.
(This section pertains only to central lint collection vacuum systems) The external central lint collection vacuum unit shall be installed with separate main
circuit breaker. It is not powered by the individual dryers. See interconnect wiring diagram provided with the System Installation Book for complete details.
The vacuum unit is provided with a control box with interconnect terminations for each dryer, power on/off, power on indication light, and a manual vacuum
unit test button.
1 15/16” dia. [49mm]
Roller type
10” x 3” [254mm x 76mm]
Gates PowerGrip
10” x 3” [254mm x 76mm]
Large, swinging lift off removable, access doors for access to basket drive,
gas train, and lint collector
Lightweight plastic door panels allow for easy liftoff and removal for
access to dryer components.
Sealed basket drying chamber minimizes outside air infiltration
Basket-
Type t-304 Stainless steel perforated panels
Type t-304 Stainless steel ribs
Removable perforation panels
Removable ribs
Heavy steel running ring and cross-member welded cage construction
Over running stainless basket gap rings protect garments from damaging
pinch points
Electrical/Controls-
SG4 touch screen PLC control
Central located controls electrical and pneumatic
Plug and play harnesses for electrical
Plug and play pneumatic
Ambient, inlet, and exhaust temperature probes
Over temperature safety
Fire Suppression-
Automatic water valve activation
Manual water valve override
Standard on all Braun Dryers
5.
DUCTWORK- Reference Appendix A in the O&M Manual for specific ductwork requirements.
1.
2.
3.
4.
Ductwork sizing is critical. A qualified mechanical contractor or engineer should size the ductwork. Failure to follow good duct design practices will
result in improper and poorly functioning equipment.
The duct connections on the equipment do not indicate final duct sizes. The ducts must be sized to provide adequate air flow to and from the dryer.
Air volume in an industrial dryer is much higher than a conventional HVAC system. Industrial dryers may move as much as 14,000CFM of
turbulent air. Check the technical specifications for the correct dryer airflow and static pressure requirements.
Careful consideration must be given to the ductwork design. Airflow through the dryer is not smooth or uniform. The tumbling process inside the
dryer will cause the air flow to surge. There will be periods of full air volume flow followed by sudden nearly full blocked air flow. The interval
between periods of full and zero flow is just a few seconds. The volume of the air the dryer is moving is significant. Suddenly stopping an air
volume this size causes the air to compress and will put significant pressure on the ductwork. The same is true when the air is released. The
compressed air behind the blockage and the power in the main blower suddenly release an excess air amount into the ductwork. The closest
analogy to this is when you kink a garden hose, you can feel the hose expand behind the kink, and the water coming out of the hose stops. When
the kink is released, the sudden surge from the hose is greater than the original flow because the hose has to return to its original size. In this
analogy, the kink is the goods tumbling in the dryer and the hose is the ductwork going to and from the dryer. The duct design must resist and
withstand the pressure the turbulent air puts on it.
TM-500PT-GAS FIRED-VERTICAL SLIDE DOOR 110817
11/8/17
Page 3 of 5
BRAUN PASS THRU DRYER
500 PT – Vertical Slide Door - NGF/PGF
G.A. BRAUN, INC.,79 GENERAL IRWIN BLVD. NORTH SYRACUSE, NY. 13212, 315-475-3123
In addition to ductwork, restricted ducting puts stress on the lint collection system. The restriction can make the air flow even more turbulent. The
internal lint collection system is a single pass system. That means the exhaust air only passes through the lint collection screen once, before
exiting the dryer to atmosphere. The screen collects approximately 85% of the lint in the exhaust air stream. As more lint accumulates on the lint
collection screen, the amount of lint bypassing the screen gradually decreases. At the end of the dry cycle, the lint screen is collecting almost all of
the lint expelled by the tumbling goods. Turbulent airflow causes the collected lint to be constantly being lifted from the screen and re-deposited,
effectively beating it against the collection screen. The more turbulent the air flow the greater the frequency and intensity of the beating. The
beating action will release even more lint into the exhaust air stream exiting the dryer and expelled to atmosphere.
5.
Do not exceed a total duct system static pressure of .5 in. w.c.. This is the combined static pressure of the exhaust and inlet duct. (TOTAL
INLET DUCT SP”w.c.)+(TOTAL EXHAUST DUCT SP”w.c.)= TOTAL SYSTEM SP. Duct static pressure in excess of the rated amount will cause
operational issues, including but not limited to, ignition failures, frequent inlet and/or exhaust over temperature alarms, unsatisfactory or increased
dry time, increased utility consumption, possible damage to external ductwork, and significantly reduce equipment life.
In some cases, by preference or necessity, the dryer inlet air will not be ducted. Instead, the air may come directly from inside the building.
Makeup air will have to be ducted into the building to account for the air that is pumped out by the equipment exhaust. Refer to the equipment
specifications to determine the amount of building makeup air required as indicated by the EXHAUST DUCT VOLUME. The total number of
machines drawing from inside air will determine the total makeup air volume required. Do not overlook the significance of providing proper makeup
air. Inadequate makeup air will produce some of the same results as static pressure above the rated amount. It can also result in possible direct or
indirect injury to employees, reduce performance of building heating and cooling systems or make them inoperable, degrade building working
environment, and reverse the venting of dangerous exhaust gases on other gas fired equipment, or process equipment in the building. If the lack of
makeup air is significant enough it could possibly reduce the structural integrity of the building.
Do not install any type of screen over the ends of the exhaust or inlet ducts.
Roof penetration and flashing/curb is by owner. The type and style of roof penetration weather protection for the dryer ducting is best determined
by the roof manufacturer, and/or mechanical contractor.
Minimum duct material shall be galvanized 18ga construction, for top inlet and exhaust models. Duct material IS 16ga for rear exhaust models on
the first 20ft of exhaust duct connection from the blower discharge. The 16ga material gives some protection against impact, either internal or
external. After 20ft, 18ga ducting is okay. If using square duct to transition to an external lint collector, a heavier gauge material may be needed to
include bracing support on the square ductwork. G.A. Braun discourages the use of square ductwork, but if used, it must be adequately supported
to withstand the normal surging tendencies of the industrial dryer. Stainless steel ducting is not required. SMACNA rules for high pressure duct
construction SHALL apply.
noise. The seams will become brittle and break over time if the oil-canning is excessive. These ducts tend to build lint internally, more so than
round duct. If square ducting is used, responsibility for structurally bracing this ductwork to prevent breakage is the sole responsibility of
the contractor installing said ductwork. G.A. Braun will assume no responsibility for square ductwork breakage at any point during its
life span.
6.
7.
8.
9.
10.
Round (spiral) duct is recommended over square or rectangular ducting. Square and rectangular ducts tend to “oil-can” and produce excess
11.
Support ductwork independently of the dryer duct connections. This will help prevent sound transmission from the equipment to the duct work.
Also, the dryer is not designed to bear the weight of the duct work.
12.
Use of a zero or no loss stack above the roof is recommended, unless ducting to a second stage lint collection device located above the roof line.
A no loss stack can be used on both the inlet and exhaust ducts. Maintain at least 5ft. of separation between the ends of the stacks.
13.
A goose neck on the exhaust and a weather cap on the inlet are acceptable. Size the ductwork accordingly to account for the restrictions these will
add to the duct system.
14.
For dryers that are directly exhausted to atmosphere the exhaust duct should be sized so the air velocity does not fall below 2,400 ft./min. This will
help keep any lint collector bypass material from settling out in the ductwork. Exhaust air duct velocity MUST not exceed 3,500 ft./min. Failure to
keep airflow within these specified limits will void any warranty support of said dryer.
15.
For dryers that are connected to an external lint collector the exhaust duct should be sized so the air velocity does not exceed 1,800 ft./min. in the
ductwork leading up to the lint collector. After the lint collector, the exhaust air duct velocity MUST not exceed 3,500 ft./min. Failure to keep
airflow within these specified limits will void any warranty support of said dryer. Pay attention to the internal static pressure of the lint collector.
This is part of the duct design total system static pressure calculation.
16.
The prevailing wind direction in your area can affect the discharge direction of the free exhaust air. Goose neck and mitered elbow exhaust ducts
require special attention. They should not face into the prevailing wind. Be careful not to exhaust one dryer directly toward the inlet of another
dryer, or other equipment fresh air intakes. No loss exhaust stacks are not affected by wind direction.
17.
Exhaust discharge can be harmful or dangerous. Pay attention to the proximity of other equipment to the dryer exhaust discharge (This should
apply to any equipment with high exhaust discharge temperature). This includes but is not limited to roof top air handling equipment, roof vents,
and roof access hatches. Avoid discharging into or near these. A barrier may be required to isolate and protect those items that may be damaged
by, or create a danger to, if the exhaust discharge is allowed to blow towards/into them.
18.
All elbows shall be long radius and designed with a center line bend radius of at least 2x’s.
19.
On models with coaxial ductwork, the exhaust duct is inside the inlet duct. Size the exhaust duct first, and then the inlet duct. Do not forget to
subtract the area of the exhaust duct from the area of the inlet duct. Do not forget to add the static pressure to the inlet duct from the exhaust duct
(Friction from the incoming air on the internal exhaust duct). Failure to do so will cause the inlet duct to be undersized. Undersized ductwork will
result in unsatisfactory operation of the dryer.
20.
The pictures and drawings below give an example of ductwork installations specific to Braun Dryers. This is an example only, and does not
represent your specific installation.
TM-500PT-GAS FIRED-VERTICAL SLIDE DOOR 110817
11/8/17
Page 4 of 5
BRAUN PASS THRU DRYER
500 PT – Vertical Slide Door - NGF/PGF
G.A. BRAUN, INC.,79 GENERAL IRWIN BLVD. NORTH SYRACUSE, NY. 13212, 315-475-3123
135° GOOSE45° MITERED
NECK. EXHAUSTNECK. EXHAUST
POINTED WITHPOINTED WITH
ZERO LOSS
PREVAIL WINDPREVAIL WIND
EXHAUST STACK.
.
NON DEPENDENT
ON WIND DIR.
CURBING &
ROOF LINE
PT Dryer with coaxial ducting
TM-500PT-GAS FIRED-VERTICAL SLIDE DOOR 110817
11/8/17
135° GOOSE45° MITERED
NECK. EXHAUSTNECK. EXHAUST
POINTED WITHPOINTED WITH
PREVAIL WIND
ZERO LOSS
PREVAIL WIND
DIR.
EXHAUST STACK.
DIR.
NON DEPENDENT
ON WIND DIR.
CURBING &
ROOF LINE
PT Dryer with split ducting
Page 5 of 5
发布评论