Donaldson Torit PowerCore VH 1-4 User manual

VH 3-18
VH 1-4 VL 2-8
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
Torit®PowerCore®
VH 1-4, 1-6, 2-8, 2-12, 2-16, 2-20, 3-18, 3-24, 3-30
VL 1-4, 1-6, 2-8, 2-12, 2-16, 2-20, 3-18, 3-24, 3-30
Installation and Operation Manual
Installation, Operation, and Service Information
IOM AG8039501 (ENG)
Revision 5
English
Master Language
This manual is property of the owner. Leave with the collector when set-up and start-up are complete. Donaldson Company reserves the
right to change design and specifications without prior notice.
Illustrations are for reference only as actual product may vary.

Donaldson Company, Inc.
Model Number _____________________________ Serial Number ______________________________
Ship Date _________________________________ Installation Date _____________________________
Customer Name _______________________________________________________________________
Address _____________________________________________________________________________
____________________________________________________________________________________
Filter Type ____________________________________________________________________________
Accessories __________________________________________________________________________
Other________________________________________________________________________________
Data Sheet
Process owners/operators have important responsibilities relating to combustible hazards.
Process owners/operators must determine whether their process creates combustible dust,
fume, or mist. If combustible dust, fume, or mist is generated, process owners/operators should at a
minimum:
• Comply with all applicable codes and standards. Among other considerations, current NFPA standards
require owners/operators whose processes involve potentially combustible materials to have a current
Hazard Analysis, which can serve as the foundation for their process hazard mitigation strategies.
• Prevent all ignition sources from entering any dust collection equipment.
• Design, select, and implement fire and explosion mitigation, suppression, and isolation strategies that
are appropriate for the risks associated with their application.
• Develop and implement maintenance work practices to maintain a safe operating environment, ensuring
that combustible dust, fume, or mist does not accumulate within the plant.
Donaldson recommends process owners/operators consult with experts to insure each of these
responsibilities are met.
As a manufacturer and supplier of Industrial Filtration Products, Donaldson can assist process owners/
operators in the selection of filtration technologies. However, process owners/operators retain all
responsibility for the suitability of fire and explosion hazard mitigation, suppression, and isolation strategies.
Donaldson assumes no responsibility or liability for the suitability of any fire and/or explosion mitigation
strategy, or any items incorporated into a collector as part of an owner/operators hazard mitigation strategy.
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.
DO NOT operate this equipment until you have read and understand the instruction warnings in the
Installation and Operations Manual. For a replacement manual, contact Donaldson Torit.
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 Torit representative. Instruct all
personnel on safe use and maintenance procedures.

Torit PowerCore, Model VH and VL 1-4 through 3-30
i
DANGER indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a hazardous
situation which, if not avoided, could result in minor or moderate injury.
NOTICE is used to address practices not related to personal injury that
may result in damage to equipment.
Magnehelic®and Photohelic®are registered trademarks of Dwyer Instruments, Inc.
Contents
Description................................................................................1
Purpose and Intended Use ....................................................1
Operation...................................................................................4
Inspection on Arrival...............................................................5
Installation Codes and Procedures ......................................5
Installation.................................................................................5
Foundations or Support Framing .......................................6
Collector Location................................................................6
Site Selection .......................................................................6
Rigging Instructions.................................................................6
Hoisting Information ............................................................6
VH Typical Installation.............................................................7
VL Typical Installation .............................................................8
Standard Equipment................................................................9
Hopper and Leg Installation ...............................................9
Provisional Anchor Bolt Recommendations....................9
Inlet Manifold (Standard) or Outlet Manifold (optional
where available) Installation............................................10
Hopper Access ...................................................................11
Clean Air Outlet...................................................................11
Compressed Air Installation.............................................12
Electrical Wiring.................................................................12
Antistatic Grounding Installation.....................................12
Solid-State Timer Installation...............................................15
Solenoid Connection..........................................................15
Timer and Solenoid Specifications..................................15
Preliminary Start-Up Check ................................................17
Maintenance Information.....................................................18
Operational Checklist ........................................................18
Filter Removal and Installation.........................................18
Valve and Diaphragm Service Procedures....................21
Dust Disposal ......................................................................22
Compressed Air Components...........................................22
Optional Equipment................................................................23
Fan Blower ..........................................................................23
TBI Style Damper and Silencer Support Bracket.........24
55-Gallon Drum Pack .........................................................25
Dumpster Pack ...................................................................27
Rotary Valve and Transition-VH Only ..............................28
Magnehelic®Gauge .........................................................29
Photohelic®Gauge.............................................................30
Delta P Control....................................................................32
Delta P Plus Control ..........................................................33
Platforms and Ladders ......................................................34
Heavy Duty Cold Climate Kit with Weather Cover-VH
Only.......................................................................................35
Pre-Wired Solenoids to Junction Box............................36
Explosion Vent ....................................................................37
Troubleshooting......................................................................38

1
Donaldson Company, Inc.
Combustible materials such as buffing lint, paper, wood, metal dusts, weld fume, or flammable
coolants or solvents represent potential fire and/or explosion hazards. Use special care when
selecting, installing, and operating all dust, fume, or mist collection equipment when such combustible
materials may be present in order to protect workers and property from serious injury or damage due to a
fire and/or explosion.
Consult and comply with all National and Local Codes related to fire and/or explosion properties of
combustible materials when determining the location and operation of all dust, fume, or mist collection
equipment.
Standard Donaldson Torit equipment is not equipped with fire extinguishing or explosion protection systems.
The Torit PowerCore VH and VL collectors are
continuous duty dust collectors that uses rectangular
style filter packs with the proprietary axial flow
PowerCore filter media. The system is designed to
provide optimum performance for high efficiency, low
operating pressure drop (energy usage) within a small
size collector. Continuous duty means the filter packs
can be pulse cleaned on-line without interrupting airflow
through the collector. Standard sizes range from 4 to 30
filter packs.
Options include anti-static Ultra-Web®media, various
cleaning controls including 24VDC, explosion vents and
several dust container options.
The VH and VL-Series collectors separate solid
particulate from an airstream as part of the dust control
system for a process.
The VH-Series is commonly used in minerals, mining and
abrasive blasting markets.
The VL-Series is commonly used on light and fluffy dusts
of bulk density, 40-lb/cuft.
Although primarily designed for negative pressure
systems, the VH and VL-Series can be configured for
applications under positive pressure. Contact Donaldson
Torit for information on positive pressure systems.
Description Purpose and Intended Use
Misuse or modification may result
in severe personal injury and/or
property damage.
Do not misuse or modify.

2
Torit PowerCore, Model VH and VL 1-4 through 3-30
Collectors are rated for the following loads as calculated
per relevant sections of the IBC 2009 code*:
Basic Wind Speed & Exposure ............90 mph, Exposure C
Seismic Spectral Acceleration, Ss ................................ 1.5 g
Seismic Spectral Acceleration, S1 ................................ 0.6 g
Installed Unit Base Elevation........................................Grade
Risk Category.......................................................................... II
Compressed air, psig ..................................................... 90-100
Housing rating, inches water gauge ................................ -20
Control Power.............................24 VDC or 120 Volt 50/60 Hz
*If collector was supplied with a Record Drawing,
the specifications on the drawing will supersede the
standard specifications above.
Front View
VH 1-6
Typical Side View
VH Rating and Specification Information

3
Donaldson Company, Inc.
Front View
VL 1-6
Typical Side View
VL Rating and Specification Information
Collectors are rated for the following loads as calculated
per relevant sections of the IBC 2009 code*:
Basic Wind Speed & Exposure ............90 mph, Exposure C
Seismic Spectral Acceleration, Ss ................................ 1.5 g
Seismic Spectral Acceleration, S1 ................................ 0.6 g
Installed Unit Base Elevation........................................Grade
Risk Category.......................................................................... II
Compressed air, psig ..................................................... 90-100
Housing rating, inches water gauge ................................ -20
Control Power.............................24 VDC or 120 Volt 50/60 Hz
*If collector was supplied with a Record Drawing,
the specifications on the drawing will supersede the
standard specifications above.

4
Torit PowerCore, Model VH and VL 1-4 through 3-30
During normal operation, dust-laden air enters the unit
through the inlet. Airflow is directed towards the filters
and heavier particulate falls directly into the storage
bin. The filter packs remove fine particulate and clean,
filtered air passes through the filter packs to the clean-
air plenum and discharges through the clean-air outlet.
Filter cleaning is accomplished using pulse-jet
technology. Air diaphragm valves provide the pulse
cleaning when an electronic solenoid valve actuates the
pulse cleaning. Filters are easily removed without tools
when they need to be changed.
door door
VH Normal Operation VH Filter Cleaning Operation
door
door
VL Normal Operation VL Filter Cleaning Operation
Unit Operation
Operation

5
Donaldson Company, Inc.
Inspection on Arrival
1. Inspect collector upon delivery.
2. Report any damage to the delivery carrier.
3. Request a written inspection report from the Claims
Inspector to substantiate any damage claim.
4. File claims with the delivery carrier.
5. Compare collector received with description of
product ordered.
6. Report incomplete shipments to the delivery carrier
and your Donaldson Torit representative.
7. Remove crates and shipping straps. Remove loose
components and accessory packages before lifting
collector from truck.
8. Check for hardware that may have loosened during
shipping.
9. Use caution removing temporary covers.
Installation Codes and Procedures
Codes may regulate recirculating
filtered air in your facility.
Consult with the appropriate authorities
having jurisdiction to ensure compliance
with all national and local codes regarding
recirculating filtered air.
Safe and efficient operation of the collector depends on
proper installation.
Authorities with jurisdiction should be consulted
before installing to verify local codes and installation
procedures. In the absence of such codes, install
collector according to the National Electric Code,
NFPA No. 70-latest edition and NFPA 91 (NFPA 654 if
combustible dust is present).
A qualified installation and service agent must complete
installation and service of this equipment.
All shipping materials, including shipping covers, must
be removed from the collector prior to or during collector
installation.
Failure to remove shipping
materials from the collector will
compromise collector performance.
Inspect collector to ensure all hardware is properly
installed and tight prior to operating collector.
Installation
Use proper equipment and adopt
all safety precautions needed for
servicing equipment.
Electrical service or maintenance work 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 service or
maintenance work.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
Turn compressed air supply OFF, bleed and
lock out lines before performing service or
maintenance work.
Site selection must account for
wind, seismic zone, and other
load conditions when selecting the location for
collectors.
Codes may regulate acceptable locations for
installing dust collectors. Consult with the
appropriate authorities having jurisdiction to
ensure compliance with all national and local
codes regarding dust collector installation.
Collectors must be anchored in a manner
consistent with local code requirements.
Anchors must be sufficient to support dead,
live, seismic, and other anticipated loads.
Consult a qualified engineer for final selection
of anchorage.
Do not set compressed-air
pressure above 100-psig as
component damage can occur.
All compressed air components must be sized
to meet the system requirements of 90-100-psig
supply pressure.
The compressed-air supply must be oil
and moisture free. Contamination in the
compressed air used to clean filters will result
in poor cleaning, cleaning valve failure, or poor
collector performance.
Purge compressed air lines to remove
debris before connecting to the collector’s
compressed air manifold.

6
Torit PowerCore, Model VH and VL 1-4 through 3-30
Collector Location
Donaldson Torit equipment is not
designed to support site installed
ducts, interconnecting piping, or electrical
services. All ducts, piping, or electrical
services must be adequately supported to
prevent severe personal injury and/or property
damage.
When hazardous conditions or materials are
present, consult with local authorities for the
proper location of the collector.
Dust collection equipment may
reach peak sound pressure
levels above 80 dB (A). Noise levels should be
considered when selecting collector location.
Locate the collector to ensure easy access to electrical
and compressed air connections, to simplify solids
collection container handling and routine maintenance,
and to ensure the straightest inlet and outlet ducts.
Foundations or Support Framing
Prepare the foundation or support framing in the
selected location. Foundation or support framing must
comply with local code requirements and may require
engineering.
Foundation and support framing must be capable of
supporting dead, live, wind, seismic and other applicable
loads. Consult a qualified engineer for final selection of
foundation or support framing.
Rigging Instructions
Suggested Tools & Equipment
Clevis Pins and Clamps Lifting Slings
Crane or Forklift Pipe Sealant
Drift Pins Pipe Wrenches
Drill and Drill Bits Screwdrivers
End Wrenches Socket Wrenches
Adjustable Wrench Spreader Bars
Torque Wrench (inch/lbs, 9/16-in Socket)
The collector is suitable for either indoor or outdoor
installations. Reference the Rating and Specification
Information.
Portable collectors require special installation
accommodations.
Note: Collectors with explosion vents are not
available in portable configurations.
Site Selection
This collector can be located on a foundation or
structural framing.
Provide clearance from heat sources and avoid any
interference with utilities when selecting the location.
Hoisting Information
Failure to lift the collector
correctly can result in severe
personal injury and/or property damage.
Use appropriate lifting equipment and adopt
all safety precautions needed for moving and
handling the equipment.
A crane or forklift is recommended for
unloading, assembly, and installation of the
collector.
Location must be clear of all obstructions, such
as utility lines or roof overhang.
Use all lifting points provided.
Use clevis connectors, not hooks, on lifting slings.
Use spreader bars to prevent damage to collector’s
casing.
Check the Specification Control drawing for weight and
dimensions of the collector and components to ensure
adequate crane capacity.
Allow only qualified crane or forklift operators to lift the
equipment.
Refer to applicable OSHA regulations and local codes
when using cranes, forklifts, and other lifting equipment.
Lift collector and accessories separately and assemble
after collector is in place.
Use drift pins to align holes in section flanges during
assembly.

7
Donaldson Company, Inc.
angle not to
exceed 30°
from vertical
(min 60°
from horizontal)
M10-1.5 x 25mm bolt
M10 flat washer
M10 flat washer
M10-1.5 hex nut
sealant
module flange
hopper flange
Do Not lift with
this orientation
X
Take center of gravity into
consideration when lifting unit.
Do not install blower before lifting unit.
1. Place hopper discharge-side up on ground or other
level surface and attach legs to hopper.
2. Assemble leg cross braces.
3. Turn hopper and leg assembly over and lift into
position over anchor bolts.
4. Level hopper.
5. Tighten all fasteners securely, including all anchor
bolts.
Tighten all hardware
before removing crane.
6. Apply rope sealant to upper hopper flange
(hopper/cabinet seam) so sealant is positioned on
the inner edge of the bolt holes (see instructions
shipped with collector).
7. Lift unit over leg and hopper assembly and lower
slowly.
8. Secure with bolts, washers, and nuts supplied.
Tighten all hardware
before removing crane.
9. Remove crane.
Steps 1-2
Steps 3-6
Steps 7-9
Apply sealant after
marriage of hopper
to cabinet and
cabinet to inlet
(steps 7-9)
VH Typical Installation
VH Typical Installation

8
Torit PowerCore, Model VH and VL 1-4 through 3-30
angle not to
exceed 30°
from vertical
(min 60°
from horizontal)
M10-1.5 x 25mm bolt
M10 flat washer
M10 flat washer
M10-1.5 hex nut
sealant
module flange
hopper flange
Do Not lift with
this orientation
X
Take center of gravity into
consideration when lifting unit.
Do not install blower before lifting unit.
1. Place hopper discharge-side up on ground or other
level surface and attach legs to hopper.
2. Assemble leg cross braces.
3. Turn hopper and leg assembly over and lift into
position over anchor bolts.
4. Level hopper.
5. Tighten all fasteners securely, including all anchor
bolts.
Tighten all hardware
before removing crane.
6. Apply rope sealant to upper hopper flange
(hopper/cabinet seam) so sealant is positioned on
the inner edge of the bolt holes (see instructions
shipped with collector).
7. Lift unit over leg and hopper assembly and lower
slowly.
8. Secure with bolts, washers, and nuts supplied.
9. Apply sealant around inlet opening.
10. Lift inlets individually onto collector. Secure with
bolts, washers, and nuts supplied.
Tighten all hardware
before removing crane.
11. Apply sealant to inlet flanges.
12. Lift inlet plenum and secure to inlet with bolts,
washers, and nuts supplied.
13. Support inlet plenum before removing crane.
14. Remove crane.
Apply sealant after
marriage of hopper
to cabinet and
cabinet to inlet
(steps 7-10)
Steps 1-2
Steps 3-6
Steps 7-9
VL Typical Installation
VL Typical Installation

9
Donaldson Company, Inc.
Standard collectors include a base unit, leg pack, hopper,
110VAC solid state timer board in NEMA 4 enclosure,
Magnehelic Gauge, compressed air connection and
sprinkler tap.
5. Turn leg and hopper assembly over and position over
anchor bolts. Secure each leg pad to the foundation
anchor bolts with customer-supplied flat washers,
lock washers, and nuts. Do not tighten hardware at
this time.
6. Level hopper.
7. Tighten all hardware securing legs, cross braces,
hopper gussets, and foundation anchor bolts.
Tighten all hardware before
removing crane.
8. Apply sealant/gasket per instructions.
9. Lift unit per rigging instructions and place on hopper.
Align with drift pins. Attach base unit to hopper with
supplied hardware. Tighten after all hardware is in
place.
Leg and Cross Brace Assembly
2. Stand the hopper on the body to hopper flange with
the discharge end up.
3. Use drift pins to align holes.
4. Reference the Leg and Cross Brace Assembly
drawings. Attach the legs to the hopper gusset using
the hardware supplied.
Standard Equipment
Anchor should project
a minimum of 1 3/4-in
and account for nut,
washer, base plate
and shims/grout.
Embedment depth
Typical Foundation Anchor
Provisional Anchor Bolt Recommendations
1. Consider Hilti HIT-HY 200 Anchor System or
equivalent. Quantity of anchor bolts should match the
number of holes provided in the base plates.
2. Anchor diameter is typically 1/8-in less than
baseplate hole diameter.
3. Corrosive environment or outdoor installation may
require stainless steel anchors.
Anchors must comply with local
code requirements and must be
capable of supporting dead, live, wind, seismic,
and other applicable loads.
Anchor sizes shown are provisional, as final
anchor sizing will depend on jobsite load
conditions, collector location, foundation/
framing design variables and local codes.
Consult a qualified engineer for final selection
of anchors.
Leg sets for standard collector sizes are shown in the
Rating and Specification Information. Reference Typical
Foundation Anchor and leg assembly drawing shipped
with the collector prior to starting assembly.
1. Prepare the foundation or support framing in the
selected location. Locate and install anchors.
Hopper and Leg Installation

10
Torit PowerCore, Model VH and VL 1-4 through 3-30
Inlet and Outlet (where available) Manifold Installation
Inlet Manifold (Standard) or Outlet Manifold
(optional where available) Installation
1. Inlets, inlet and outlet manifolds are to be installed
following field installation of hopper and legs and
anchoring of collector.
2. Lift and install individual inlets referencing assembly
drawings shipped with collector.
The inlet and outlet manifolds are
considered part of the duct system
and must be supported in the field by others.
inlets
Step 2 Step 3
Step 4
inlet
manifold
outlet manifold
3. Lift inlet manifold and bolt to individual inlets
referencing assembly drawing shipped with
collector.
Tighten all hardware and
support inlet manifold before
removing crane to prevent personal injury and/
or property damage.
Inlet and outlet manifolds are considered part
of the duct system and must be supported in
the field by others.
4. Lift outlet manifold and bolt to collector referencing
assembly drawing shipped with collector.

11
Donaldson Company, Inc.
Hopper Access
Completely turn off and lock out
any dust collector and ancillary
equipment before removing hopper access
cover.
Use caution when removing hopper access
cover to avoid personal injury.
Use special care reaching inside hopper for
any dust related hazards or ancillary equipment
or any other components.
Clean Air Outlet
Remove clean air plenum outlet cover or temporary
shipping cover.
VH Clean Air Plenum Outlet Covers
VL Power Hole Covers
VH Power Hole Cover
Hopper Access

12
Torit PowerCore, Model VH and VL 1-4 through 3-30
Antistatic Grounding Installation
If the collector is equipped with antistatic filters and
bonded, the collector will need to be grounded by a
qualified electrician.
1. Follow the instructions provided by the antistatic
grounding drawing provided.
2. Ground the collector using the grounding lug at the
rear of the collector.
3. Take resistance readings from the filter media to
ground to ensure conductivity. Records results as
indicated on the drawing.
Electrical Wiring
Electrical installation, service,
or maintenance work 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 service or
maintenance work.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
All electrical wiring and connections, including electrical
grounding, should be made in accordance with the
National Electric Code (NFPA No. 70-latest edition).
Check local ordinances for additional requirements that
apply.
The appropriate wiring schematic and electrical rating
must be used. See collector’s rating plate for required
voltage.
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 collector’s rating plate for
voltage and amperage ratings.
Refer to the wiring diagram for the number of wires
required for main power wiring and remote wiring.
1. Remove the plastic pipe plug from the collector’s air
manifold and connect the compressed-air supply
lines. Use thread-sealing tape or pipe sealant on all
compressed-air connections.
2. Install a customer-supplied shut-off valve, bleed-
type regulator with gauge, filter, and automatic
condensate valve in the compressed-air supply line.
3. Set compressed-air supply to 90-psig. The valve
should open and close sequentially at factory set
15-second intervals (10-second intervals on VH and
VL 2-20 and 3-30 units).
Compressed Air Installation
Turn compressed air supply OFF, bleed and
lock out lines before performing
service or maintenance work.
A safety exhaust valve should be used to
isolate the compressed air supply. The safety
exhaust valve should completely exhaust
pressure in the collector manifolds when
closed, should be capable of being interlocked
with fire or explosion mitigation equipment
and should include provisions to allow closed-
position locking.
Do not set compressed-air pressure above
100-psig as component damage
can occur.
All compressed air components must be sized
to meet the system requirements of 90-100-psig
supply pressure.
The compressed-air supply must be oil
and moisture free. Contamination in the
compressed air used to clean filters will result
in poor cleaning, cleaning valve failure, or poor
collector performance.
Purge compressed-air lines to remove
debris before connecting to the collector’s
compressed-air manifold.

13
Donaldson Company, Inc.
shut-off valve/safety exhaust valve*
compressed-air
supply*
automatic
condensate
valve*
air regulator*
bleed-type
air filter*
*customer supplied
VH
Turn power off and lock out
electrical power sources.
Turn compressed air supply OFF, bleed
and lock out lines before performing
service or maintenance work.
VH Compressed Air Installation

14
Torit PowerCore, Model VH and VL 1-4 through 3-30
shut-off valve/safety exhaust valve*
compressed-air
supply*
automatic
condensate
valve*
air regulator*
bleed-type
air filter*
*customer supplied
VL
Turn power off and lock out
electrical power sources.
Turn compressed air supply OFF, bleed
and lock out lines before performing
service or maintenance work.
VL Compressed Air Installation

15
Donaldson Company, Inc.
Solid-State Timer Installation
Electrical installation, service
or maintenance work during
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.
Timer and Solenoid Specifications
Power to the solid-state timer is supplied to Terminals
L1 and L2, which are intended to operate in parallel
with the fan starter’s low-voltage coil. On fan start-up,
power is supplied to the timer and the preset OFF time is
initiated. At the end of the OFF time, the timer energizes
the corresponding solenoid valve to provide the ON time
cleaning pulse for one diaphragm valve and then steps to
the next until all filters have been cleaned.
To pulse when the fan is OFF, install a toggle switch as
shown on the Solid-State Timer Wiring Diagram. When
the toggle switch is ON, the timer receives power and
energizes the solenoid valves’ pulse-cleaning operation
even though the fan is turned OFF.
The solid-state timer is used to control the filter cleaning
system. Available timers include 3, 6, and 10-pin solenoid
valve control.
Solenoid Connection
The collector is equipped with a solenoid valve (typically
120V) that controls the pulse-cleaning valves, which
clean the filters.
Wire the solenoids to the solid-state timer following the
wiring diagram supplied with the collector. Filter life and
cleaning operation will be affected if not wired correctly.
1. Using the wiring diagram supplied, wire the fan
motor, fan-motor starter, solid-state timer, and
solenoid valves. Use appropriate wire gauge for
rated amp load as specified by local codes.
2. Plug the program lug into the pin that corresponds
with the number of solenoid valves controlled for
3-10 PIN. For 20 and 32 PIN solenoid controls, set
the switch positions on the DIP switch labeled LAST
CHANNEL to the corrersponding number of pulse
valves using the chart printed on the timer board.
3. With power supply ON, check the operation of the
timer and valves. The valves should open and close
sequentially at factory set 15-second intervals
(10-second intervals on VH and VL 2-20 and 3-30
units).
4. If a gauge or similar device is used to control the
solid-state timer, the jumper on the pressure switch
portion of the timer should be removed. The solenoid
valves pulse only when the differential pressure
reaches the high-pressure setpoint. The valves will
continue to pulse until the low-pressure setpoint is
reached.
The solid-state timer voltage must
match the voltage of the rating of
the timer provided (typically 120VAC, 240 VAC
also available).
Do not mount the solid-state timer directly
to the collector as mechanical vibration can
damage the timer.

16
Torit PowerCore, Model VH and VL 1-4 through 3-30
Disconnect, fuses, low voltage blower starter, and 1TGS switch are customer-supplied.
Use wiring diagram provided with collector.
Wiring by others
Wiring by factory
Solid-State Timer Typical Wiring Diagram for VH 2-12
Input
105-135V/50 -60Hz/1Ph (standard) or 24VDC (optional)
Output Solenoids
The load is carried and turned ON and OFF by the 200
watt maximum-load-per-output solid-state switch.
Pulse ON Time
Factory set at 100-milliseconds.
Do not adjust pulse ON time
unless the proper test equipment
is available. Too much or too little ON time can
cause shortened filter life.
Pulse OFF Time
Factory set at 15-seconds (VH and VL 2-20 and 3-30 units
are set at 10-seconds), adjustable from 1 to 1.5-second
minimum to maximum 60 to 66-second.
Operating Temperature Range
-20° F to 130° F
Transient Voltage Protection
50 kW transient volts for 20-millisecond duration once
every 20 seconds, 1% duty cycle.
Solenoid Valves
115-V at 19.7 watts each
24VDC @ 18 VA watts
Compressed-Air
Set compressed-air supply at 90-psig.
Do not increase supply pressure
above 100-psig as component
damage can occur.

17
Donaldson Company, Inc.
Preliminary Start-Up Check
Instruct all personnel on safe use and maintenance
procedures.
Electrical work during
installation, service or
maintenance 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 service or
maintenance work.
Check that hopper discharge is properly set
and functioning.
Turn compressed air supply OFF, bleed and
lock out lines before performing service or
maintenance work.
Check that the collector is clear and free of all
debris before starting.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
Optional fans over 600 lbs must be
independently supported.
5. Check that fan exhaust damper is set to the fully-
closed position.
6. Check and remove all loose items in or near the inlet
and outlet of the collector.
7. Check that all remote controls and solenoid
enclosures (if applicable) are properly wired and all
service switches are in the OFF position.
8. Check that all optional accessories are installed
properly and secured.
9. Turn power ON at source.
10. Turn the compressed-air supply ON. Adjust pressure
regulator for 90-psig.
11. Turn fan motor ON.
Do not look into fan outlet to
determine rotation. View the fan
rotation through the back of the motor.
Check that the exhaust plenum is free of tools
or debris before checking blower/fan rotation.
Stand clear of exhaust to avoid personal injury.
12. Adjust airflow with the exhaust damper.
Excess airflow can shorten filter
life, cause electrical system
failure and fan motor failure.
13. Turn powered hopper discharge devices ON.
1. Check all electrical connections for tightness and
contact.
2. Check for proper rotation as noted on the fan and/or
hopper discharge device housing.
To reverse rotation, single-phase power supply:
Follow manufacturer’s instructions on the motor’s
nameplate.
To reverse rotation, three-phase power supply:
Switch any two leads on the motor junction box.
Do not interchange a power lead
with the ground wire. Severe
personal injury and/or property damage may
result.
3. All access panels should be sealed and secure.
4. Check that the dust container is properly sealed and
clamped.