Donaldson Torit Unimaster UMA-H Series User manual

Installation
and Operation Manual
IOM AD3547701
Revision 1
Unimaster®Dust Collector
Models UMA 40, 70, 100, 150, and 250
built after August 2005
Models UMA 450 and 750
built after March 2006
Throughout this manual
statements indicating
precautions necessary
to avoid equipment failure are
referenced in a Note. Statements
indicating potential hazards that
could result in personal injury or
property damage are referenced
in a Caution! box.
Installation,
Operation, and
Service Information
This manual is property of the owner. Leave with the unit when set-up and
start-up are complete. Donaldson Company reserves the right to change design
and specifications without prior notice.
UMA-H 250
Hopper Base
UMA-B 250
Bin Base
UMA-D 250
55-Gallon Drum Base

Donaldson Company, Inc.
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Caution!
Application of Dust Control Equipment
• Combustible materials such as buffing lint, paper, wood, aluminum or steel dust, weld
fume, or flammable solvents represent fire or explosion hazards. Use special care when
selecting and operating all dust or fume collection equipment when combustible
materials are present to protect workers and property from damage due to fire and/or
explosion. Consult and comply with National and Local Codes relating to fire or
explosion and all other appropriate codes when determining the location and operation
of dust or fume collection equipment.
• When combustible materials are present, consult with an installer of fire extinguishing
systems familiar with these types of fire hazards and local fire codes for
recommendations and installation of fire extinguishing and explosion protection
systems. Donaldson dust collection equipment is not equipped with fire extinguishing
or explosion protection systems.
• DO NOT allow sparks, cigarettes or other burning objects to enter the hood or duct of
any dust or fume control equipment as these may initiate a fire or explosion.
• For optimum collector performance, use only Donaldson replacement parts.
Warning – Improper operation of a dust control system may contribute to conditions in the
work area or facility that could result in severe personal injury and product or property
damage. Check that all collection equipment is properly selected and sized for the intended use.

Unimaster Dust Collector, Model UMA
3
This manual contains specific
precautionary statements relative to
worker safety. Read thoroughly and
comply as directed. Discuss the use
and application of this equipment
with a Donaldson representative.
Instruct all personnel on safe use and
maintenance procedures.
Data Sheet
Model Number _______________________________ Serial Number ________________________________
Ship Date ____________________________________ Installation Date ______________________________
Customer Name ____________________________________________________________________________
Address ____________________________________________________________________________
____________________________________________________________________________
Filter Type ____________________________________________________________________________
Accessories ____________________________________________________________________________
Other ____________________________________________________________________________
Contents
Description ........................................................... 4
Purpose and Intended Use .................................... 4
Operation ............................................................. 5
Inspection on Arrival ........................................... 6
Installation Codes and Procedures ....................... 6
Installation ........................................................... 6
Site Selection .................................................. 6
Unit Location ................................................. 6
Electrical Wiring .................................................. 7
Rigging Instructions ............................................. 7
Hoisting Information ..................................... 7
Standard Equipment ............................................ 8
Unit Installation ............................................. 8
Inlet Assembly.............................................. 10
Electrical Connection ................................... 12
Optional Equipment ........................................... 16
Explosion Vents ............................................ 16
Magnehelic®Gauge ..................................... 17
Caster Base .................................................. 19
Static Grounding .......................................... 19
Preliminary Start-Up Check............................... 20
Start-Up ............................................................ 20
Shut-Down ......................................................... 20
Service Information ........................................... 20
Operational Checklist .................................. 20
Filter Removal ............................................. 22
Filter Replacement ....................................... 22
Troubleshooting ................................................. 24
Warranty ............................................................ 28
Magnehelic®is a registered trademark of Dwyer Instruments, Inc.

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Description
The Unimaster series dust collectors are self-
contained, intermittent-duty dust collectors with
bag-style filters. Three standard configurations—
UMA-B, UMA-H, and UMA-D provide effective
cleaning in a variety of industrial settings.
Most popular is Model UMA-B and ships complete
with fan, easy-access filter assembly, multiple-inlet
hopper and dust bin with quick-release sealer gear.
Model UMA-H is a control unit with fan and filter
assembly only. The housing has an open bottom
and flanges to bolt directly to a dust container or
hopper. Model UMA-D includes a fan, easy-access
filter assembly, multi-inlet hopper and drum cover
assembly to fit a standard 55-gallon drum.
Standard sizes range from 43 to 753 sq ft of filter
area and features a UMA controller to control the
filter cleaning operation. Other options include
explosion relief vents, static grounding, weather
hoods and caster frames.
Purpose and Intended Use
The Unimaster dust collectors are used to separate
solid particulate from an airstream as part of a
manufacturing process. It is an ideal choice for
intermittent operations in plant processes. Several
small units can be installed at dust generation sites
throughout the plant resulting in total dust capture
and flexibility. Some typical installations include
blending/mixing, abrasive blasting, cleaning,
cutting, drilling, grinding, milling, packing,
polishing, sanding, and sawing.
Caution!
• Misuse or modification of this equipment
may result in personal injury.
• Do not misuse or modify.
Caution!
• Combustible materials such as buffing lint, paper, wood, aluminum or steel dust, weld fume,
and flammable solvents represent fire or explosion hazards.
• Use special care when selecting and operating all collection equipment when combustible
materials are present to protect workers and property from damage due to fire and/or explosion.
• Consult and comply with National and Local Codes relating to fire or explosion, and all
other appropriate codes when determining the location and operation of dust collection
equipment.
• Donaldson equipment is not equipped with fire extinguishing or explosion protection systems.

Unimaster Dust Collector, Model UMA
5
Operation
During normal operation, dust-laden air enters the
unit through the dirty-air inlet. The velocity is
reduced and natural pre-separation, caused by the
effects of gravity, takes place and heavier
particulate falls directly into the collection bin or
hopper. Fine particles collect on the outside surface
of the filter bag and clean, filtered air passes to the
center of the bag and discharges through the clean-
air outlet.
The Unimaster is an intermittent-duty collector,
which means that cleaning starts when the fan is
turned OFF and the appropriate fan run-down time
is complete. The solid-state timer automatically
starts the cleaning sequence 75-seconds after the
fan is turned OFF. This is the fan run-down time.
Power to controls must remain ON to operate the
cleaning mechanism. The vibration motor starts
and filter cleaning begins for a preset time of 30-
seconds.
Unit Operation
*Doors not shown on unit for illustrative purposes.
Filter Cleaning Operation*
hopper
dust storage
container
shaker
motor
junction
box
Normal Operation*
clean-air
plenum /
silencer
filter bags
and inserts
dirty-air
plenum
dirty-air inlet
clean-air outlet
fan

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Inspection on Arrival
1. Inspect unit on delivery.
2. Report any damage to the delivery carrier.
3. Request a written inspection report from the
Claims Inspector to substantiate claim.
4. File claims with the delivery carrier.
5. Compare unit received with description of
product ordered.
6. Report incomplete shipments to the delivery
carrier and your Donaldson representative.
7. Remove crates and shipping straps. Remove
loose components and accessory packages
before lifting unit from truck.
Installation Codes and Procedures
Installation
Site Selection
1. The unit can be used as a stand-alone collector
or located in the top of storage silos and bins,
or integrated into hoods for material handling
equipment such as belt conveyors and bucket
elevators.
2. Wind, seismic zone, and other live-load
conditions must be considered when designing
the mounting flange, hood supports, and/or pad
for the collector. Contact your Donaldson
representative for more information.
3. Provide appropriate clearance from heat
sources and interference with utilities.
Unit Location
1. When hazardous conditions or materials are
present, consult with local authorities for the
proper location and orientation of the unit.
2. Mounting flanges, hood supports, and/or pad
must be capable of supporting the entire weight of
the unit plus the weight of the collected material,
and ductwork.
3. Locate the unit as close to the dust source as
possible. Install anchor bolts to extend a
minimum of 2-inches above foundation unless
otherwise indicated on the Specification
Control drawing.
4. Locate the unit to ensure easy access to
electrical and connections, routine
maintenance, and filter inspection and
replacement.
Caution!
Donaldson equipment is not designed to
support site-installed ducts, interconnecting
piping, or electrical services. All ducts,
piping, or electrical services supplied by
others must be adequately supported to
prevent severe personal injury and/or
property damage.
Caution!
OSHA may have requirements regarding
recirculating filtered air in your facility.
Consult with the appropriate local
authorities to ensure compliance with all
codes regarding recirculating filtered air.
1. Safe and efficient operation of the unit depends
on proper installation.
2. Authorities with jurisdiction should be consulted
before installing to verify local codes and
installation procedures. In the absence of such
codes, install unit according to the National
Electric Code, NFPA No. 70-latest edition.
3. A qualified installation and service agent must
complete installation and service of this
equipment.
4. All shipping materials, including shipping
covers, must be removed from the unit prior to,
or during unit installation.
Note: Failure to remove shipping materials
from the unit will compromise unit
performance.

Unimaster Dust Collector, Model UMA
7
Electrical Wiring
Caution!
• Electrical installation must be
performed by a qualified electrician
and comply with all applicable
national and local codes.
• Turn power off and lock out electrical
power sources before performing
installation, service, or maintenance
work.
• Do not install in classified hazardous
atmospheres without an enclosure
rated for the application.
1. All electrical wiring and connections, including
electrical grounding, should be made in
accordance with the National Electric Code,
NFPA No. 70-latest edition.
2. Check local ordinances for additional
requirements that apply.
3. The appropriate wiring schematic and electrical
rating must be used. See unit’s rating plate for
required voltage.
4. If the unit is not furnished with a factory-
mounted disconnect, an electric disconnect
switch having adequate amp capacity shall be
installed in accordance with Part IX, Article
430 of the National Electrical Code, NFPA No.
70-latest edition. Check unit’s rating plate for
voltage and amperage ratings.
5. Refer to the wiring diagram for the number of
wires required for main power wiring and
remote wiring.
Rigging Instructions
Suggested Tools & Equipment
Crane or Forklift Socket Wrenches
Slings, Spreader Bars, End Wrenches
and Clevis Pins Large Crescent Wrench
Drift Pins Drill and Drill Bits
Clamps Pipe Sealant
Screwdrivers Pipe Wrenches
Hoisting Information
1. Use all lifting points provided.
2. Use clevis connectors, not hooks, on lifting slings.
3. Use spreader bars to prevent damage to units
casing.
4. Check the Specification Control drawing for
weight and dimensions of the unit,
subassemblies, and components to ensure
adequate crane capacity.
5. Allow only qualified crane operators to lift the
equipment.
6. Refer to applicable OSHA regulations and local
codes when using cranes, forklifts, and other
lifting equipment.
7. Lift unit and accessories separately, and
assemble after unit is in place.
8. Use drift pins to align holes in section flanges
during assembly.
Caution!
• Failure to lift the collector correctly can
result in severe personal injury or
property damage.
• Use appropriate lifting equipment and
adopt all safety precautions needed for
moving and handling the equipment.

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Typical Installation, UMA 40 to 150 Bin
Standard Equipment
Unimaster dust collectors are delivered partially
assembled. Unit installation, optional equipment
assembly, and electrical connections are completed
at the job site.
Caution!
The collector has a high center-of-gravity
and may overturn if not secured properly.
• Secure the collector to the lifting device.
• Use care when moving the unit.
Unit Installation
UMA-B 40 to 150
1. Prepare the foundation in the selected location.
Install anchor bolts to extend a minimum of
2-inches above foundation unless otherwise
indicated on the Specification Control drawing.
2. Lift unit into position over the anchor bolts and
lower slowly.
3. Level unit horizontally and vertically, using
steel shims under legs where required.
4. Secure unit to anchor bolts using customer-
supplied hardware.
UMA-B 150
Bin Base

Unimaster Dust Collector, Model UMA
9
UMA-H
Note: Compare the position and spacing of the bolt
pattern on the unit’s mounting flange to the
bolt pattern on the mounting surface.
1. Apply two strips of sealant or caulk to the
mounting surface, one toward the inside of the
bolt pattern and one toward the outside of the
bolt pattern.
2. Lift unit into position over mounting surface
and lower slowly.
3. Use drift pins to align holes.
4. Secure with bolts, washers, and hex nuts
supplied. Tighten to form an airtight seal.
hopper or other
mounting surface
align mounting holes
or match-drill new holes
in the mounting flange
sealant or caulk
Typical Installation, UMA-H

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UMA-B 250 to 750, UMA-D, or Two-Piece Shipments
1. Prepare the foundation in the selected location.
Install anchor bolts to extend a minimum of
2-inches above foundation unless otherwise
indicated on the Specification Control drawing.
2. Lift base, leg, and hopper assembly into
position over the anchor bolts and lower slowly.
3. Level unit horizontally and vertically, using
steel shims under legs where required.
4. Secure unit to anchor bolts using customer-
supplied hardware.
5. Remove the lifting brackets from the top of the
base assembly.
6. Apply two strips of sealant or caulk to the
hopper’s top flange: one toward the inside of
the bolt pattern and one toward the outside of
the bolt pattern.
7. Lift collector section into position over the base
assembly and lower slowly.
8. Use drift pins to align holes.
9. Secure with bolts, washers, and hex nuts
supplied. Tighten to form an airtight seal.
Inlet Assembly
All models are shipped with the inlet specified at
the time of order. Side inlets are not
interchangeable with back inlets. Contact
Donaldson if additional changes are necessary.
1. Remove the inlet blank from the specified
location.
2. Replace damaged sealant if necessary.
3. Secure inlet to unit using the hardware removed
in Step 1.

Unimaster Dust Collector, Model UMA
11
Typical Installation, UMA-B 250 to 750, UMA-D, or Two-Piece Shipment
apply sealant
or caulk
toward inside
and outside
of bolt pattern
base, leg
and hopper
assembly
collector section
lifting brackets:
remove after positioning
the base, leg,
and hopper assembly

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Caution!
• Electrical installation must be
performed by a qualified electrician
and comply with all applicable
national and local codes.
• Turn power off and lock out electrical
power sources before performing
installation, service, or maintenance
work.
• Do not install in classified hazardous
atmospheres without an enclosure
rated for the application.
The UMA controller operates the fan and shaker in
the proper sequence to ensure effective filter cleaning.
The controller contains an across-the-line fan
starter and an across-the-line shaker motor starter.
1. Mount the controller in a convenient accessible
location, free of vibration and temperature
extremes.
Note: Do not mount the controller on the unit.
Mechanical vibration can damage the
control.
2. Using the wiring diagram supplied with the
controller, connect the power lead from a
customer-supplied disconnect switch to the
terminal block inside the controller, complying
with all applicable codes for motor branch
circuits.
Note: The national electric code requires all
connections to the electrical enclosure be
of the same rating.
3. Install conduit from the controller to the
junction box located on the side of the collector.
Use conduit and fittings compatible with the
rating of the controller’s enclosure.
4. Make the connections from the manual motor
protector inside the controller to the terminal
block in the junction box.
UMA Controller
The UMA Controllers are used with three-phase,
50- or 60-Hz power supplies or optional single-
phase power, and suitable for fan motors rated to
and including 30 horsepower.
Operation
Start
•Press START button.
-Fan contactor M1 is energized, timer
module sets, and the fan motor starts.
Average operating period for fan is 4
hours.
Clean
•Press CLEAN button.
-Fan contactor M1 is de-energized and
the timer is energized.
-After approximately 75-seconds, the
shaker motor contactor M2 is energized
and the shaker motor runs for
approximately 30-seconds.
-Shaker motor contactor is de-energized
and the timer resumes inactive status.
Note: Before a cleaning cycle can start
by pressing the CLEAN button, the
M1 fan contactor must have been
energized for at least 30-seconds.
In the event of a power supply failure during a
cycle, an internal safety feature ensures the
controller automatically resets ready for the fan to
be restarted. Reapplying power does not require
the cycle to be completed.
Electrical Connection

Unimaster Dust Collector, Model UMA
13
ground lug
L1
L2
L3
N
1L1
1L3
1L2
fan
(F)
X1
H1 H3
X2
H2 H4
shaker timer
32
1
XF
fan motor
M1 OL1
M2 OL2
shaker motor
FU1
M1
PB1
clean
PB2
start M1OL
FNQ-R1/2
FU2
115V
460V
FU3
MDL-1/2
T1
TR1
M2 OL2
M1
Typical Wiring Diagram, Three-Phase Power Supply

Donaldson Company, Inc.
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230-Volt, Single Phase Power Supply Wiring Diagram
ground lug
L1
L2
N
1L1
1L2
fan
(F)
X1
H1 H3
X2
H2 H4
shaker timer
32
1
XF
fan motor
M1 OL1
M2 OL2
shaker motor
FU1
M1
PB1
clean
PB2
start M1OL
FNQ-R1
FU2
115V
230V
FU3
MDL-1/2
T1
TR1
M2 OL2
M1
1L2
1L2
3L2
3L2

Unimaster Dust Collector, Model UMA
15
115-Volt, Single Phase Power Supply Wiring Diagram
ground lug
L1
L2
N
fan
(F)
shaker timer
32
1
fan motor
M1 OL1
M2 OL2
shaker motor
FU1
M1
PB1
clean
PB2
start M1OL1
FU3
MDL-1/2
TR1
M2 OL2
M1
N1
N1
N2
N2

Donaldson Company, Inc.
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Optional Equipment
Explosion Vents
Note: Remove all shipping materials, including
covers, from the explosion relief vents
prior to installation. Failure to remove
shipping covers will seriously
compromise explosion vent operation.
•Explosion relief vents must be safely directed
outdoors away from personnel, buildings,
property, offices, walkways, and catwalks to
reduce risk of damage to property and personal
injury. Explosion venting calculations are based
on formulas from NFPA-68, 1998 for outdoor
applications only, with no duct or obstructions
on the explosion vent panel.
•Explosion vents are suitable for negative
pressure installations only.
•Contact Donaldson for assistance in calculating
safe and specific venting requirements for Torit
equipment.
Note: Standard explosion vents are intended for
outdoor installations only.
Caution!
• Personal injury, death, or property
damage can result from material
discharge during venting.
• The material discharged from an
enclosure during the venting of an
explosion should be directed safely to
an outside location.
• The risk of damage or injury can be
minimized or avoided by locating
vented equipment outside buildings and
away from normally occupied areas.

Unimaster Dust Collector, Model UMA
17
Magnehelic Gauge
The Magnehelic is a differential pressure gauge
used to measure the pressure difference between
the clean- and dirty-air plenum and provides a
visual display of filter change requirements. Mount
the high-pressure tap in the dirty-air plenum and
the low-pressure tap in the clean-air plenum.
1. Choose a convenient, accessible location on or
near the unit for mounting that provides the
best visual advantage.
2. Mount the pressure tap hardware on the clean-
air chamber panel. Mount the pressure tap with
the tee inside the dirty-air chamber.
3. Plug the pressure ports on the back of the gauge
using two, 1/8-in NPT pipe plugs. Install two
1/8-in NPT male adapters supplied with the
gauge into the high- and low-pressure ports on
the side of the gauge. Attach the mounting
bracket using three, #6-32 x 1/4-in screws.
4. Mount the gauge and bracket assembly to the
supporting structure using two, self-drilling screws.
Magnehelic Gauge Pressure Tap Location
remove bolt and install
low pressure tap
remove bolt and install
high pressure tap
clean-air plenum
dirty-air plenum

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5. Thirty-five feet of plastic tubing is supplied and
must be cut in two sections. Connect one
section of tubing from the gauge’s high-pressure
port to the pressure fitting located in the dirty-
air chamber. Connect remaining tubing from
the gauge’s low-pressure port to the fitting in
the clean-air chamber. Additional tubing can be
ordered from your representative.
6. Zero and maintain the gauge as directed in the
manufacturer’s Operating and Maintenance
Instructions provided.
Magnehelic Gauge Assembly
1/8-in NPT x 90°
male elbow
clean-air plenum
3/8-in flat washer
1/8-in NPT coupling
mounting bracket
#6-32 x 1/4-in mounting screws
support structure
mounting surface
Magnehelic gauge
high-pressure port
low-pressure port
two, 1/8-in NPT
adapters
plastic tubing
two, 1/8-in NPT pipe plugs
two, self-drilling screws
1/8-in NPT x 90° male elbow
dirty-air plenum drill location
3/8-in flat washer
1/8-in NPT adapter
1/8-in NPT x 90° elbow
static pressure tee

Unimaster Dust Collector, Model UMA
19
Caster Base
Models UMA 40 to 250 must be lifted into the
optional caster frame.
Static Grounding
Units using antistatic filter bags must be properly
grounded.
1. If the collector is ordered with antistatic filter
bags, the grounding lug and internal
components are factory installed.
2. Connect the grounding boss to ground using the
grounding lug provided.
Static Grounding
grounding lug
connect to ground
brass nut
antistatic ground bar
brass bolt
brass bolts

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Caution!
•Do not look into fan outlet to
determine rotation.
• Check that the exhaust plenum is free
of tools or debris before checking
blower/fan rotation.
• Stand clear of exhaust to avoid
personal injury.
Preliminary Start-Up Check
1. Check all electrical connections for tightness
and contact.
2. Check for and remove all loose items in or near
the inlet and outlet of the unit.
3. Check that all remote controls are wired into
the control system, and all service switches are
in the OFF position.
4. Check that all optional accessories are installed
properly and secure.
5. Check that hopper discharge is open and the
storage container is sealed, if equipped. Excess
airflow to the blower will cause electrical
failure.
6. Turn power ON at source.
7. Turn the fan motor ON then OFF to check for
proper rotation by referencing the rotation
arrow located on the motor’s mounting plate.
To reverse rotation, single-phase power supply:
Follow manufacturer’s instructions on the
motor’s nameplate.
To reverse rotation, three-phase power supply:
Turn electrical power OFF at source and switch
any two leads on the output-side of the fan-
motor starter.
Caution!
• Turn power off and lock out electrical
power sources before performing
installation, service, or maintenance
work.
Start-Up
Press the Start button on the controller panel to
start the unit.
Shut-Down
1. Press the Clean button on the controller.
2. The fan stops when fan run-down cycle is
complete.
3. The cleaning cycle starts and when finished, the
unit turns OFF.
Service Information
Operational Checklist
1. Monitor overall performance of the collector.
2. Monitor exhaust.
3. Monitor pressure drop across filters.
4. Monitor dust disposal.
Check Weekly
1. Pressure drop across filters range from 1 to 6 “wg.
2. Inspect explosion relief vent, if equipped, for
damage, snow, or ice.
Check Monthly
1. Door seals for condition and contact. Replace
or adjust as necessary.
2. Check that the clean-air chamber is free of dust
accumulation. If dust is present, check the
surrounding filter bags for tears or loose seals.
3. Check rubber seals for tears and over
compression.
4. Check that the shaker mechanism bolts are
tight and secure. Check for diaphragm wear or
damage, broken locators on the shaker bar, or
torn shaker-bar support straps. Replace as
necessary.