Nordson Spectrum VT Feed Center User manual

SpectrumrVT Feed Center
Customer Product Manual
Part 1611362−01
Issued 06/18
NORDSON CORPORATION •AMHERST, OHIO •USA
For parts and technical support, call the Industrial Coating
Systems Customer Support Center at [phone] or
contact your local Nordson representative.
This document is subject to change without notice.
Check http://emanuals.nordson.com for the latest version.

Part 1611362−01 E2018 Nordson Corporation
Contact Us
Nordson Corporation welcomes requests for information, comments, and
inquiries about its products. General information about Nordson can be
found on the Internet using the following address:
http://www.nordson.com.
Address all correspondence to:
Nordson Corporation
Attn: Customer Service
555 Jackson Street
Amherst, OH 44001
Notice
This is a Nordson Corporation publication which is protected by copyright.
Original copyright date 2018. No part of this document may be
photocopied, reproduced, or translated to another language without the
prior written consent of Nordson Corporation. The information contained
in this publication is subject to change without notice.
Trademarks
Encore, HDLV, Prodigy, Spectrum, Nordson, and the Nordson logo are
registered trademarks of Nordson Corporation.
AeroDeck is a trademark of Nordson Corporation.
All other trademarks are the property of their respective owners.

Change Record i
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Change Record
Revision Date Change
01 06/18 New Release.

Change Record
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Table of Contents iii
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Table of Contents
Safety 1-1..................................................
Introduction 1-1.............................................
Qualified Personnel 1-1......................................
Intended Use 1-1...........................................
Regulations and Approvals 1-1...............................
Personal Safety 1-2.........................................
Fire Safety 1-2.............................................
Grounding 1-3..............................................
Action in the Event of a Malfunction 1-3........................
Disposal 1-3...............................................
Description 2-1.............................................
Introduction 2-1.............................................
Components 2-3............................................
Transfer Pumps 2-4......................................
Spectrum Hopper 2-5.....................................
VT Inline Powder Feed Pump 2-6...........................
Optional Component List 2-7...............................
Sieve Screens 2-7.....................................
Electrical and Pneumatic Controls 2-8.......................
Specifications 2-10...........................................
Size and Weight 2-10......................................
Electrical Requirements 2-11................................
Air Requirements 2-11.....................................
Exhaust Air Flow 2-11...................................
Compressed Air Supply 2-11.............................
Air Pressure 2-12.......................................
Installation 3-1.............................................
Unpacking 3-1..............................................
Preparing for Installation 3-1..................................
Anchor Feed Center 3-2...................................
Anchor Feed Center Controller 3-3..........................
Extraction Duct Connection 3-3...............................
Electrical Connections 3-4...................................
Pneumatic Connections 3-4..................................
Reclaim and Fresh Powder Feed Options 3-4..................

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Operation 4-1..............................................
Controls (Home Screen) 4-2..................................
Alarm Screen 4-4.........................................
Sieve Operation 4-5.........................................
Reclaim and Fresh Powder Transfer Pump Operation 4-5.........
Reclaim Transfer Pump Operation 4-5.......................
Fresh Powder Transfer Pump Operation 4-5..................
Powder Level Sensor Operation 4-6...........................
Hopper Operation 4-6.....................................
Silencing the Low Powder Alarm 4-6......................
Startup 4-7.................................................
VT Inline Powder Feed Pump Operation 4-7....................
Color Change Procedure 4-8..................................
Prepare for the Color Change Procedure 4-8.................
Light Tower Indicator Definitions 4-9.......................
Begin the Color Change Procedure 4-9......................
Prepare for Hopper Purge 4-10..............................
Move the Reclaim Hose 4-11................................
Clean the Booth 4-11.......................................
Clean the Cyclone Pan 4-12.................................
Return to the Feed Center 4-12..............................
Blow off the Pick-Up Tube Arm 4-13..........................
Move the Fresh Powder Hose 4-13...........................
Clean Critical Points on the Feed Center 4-14..................
Reassemble the Feed Center Components 4-15...............
Clean the Cyclone 4-16.....................................
Complete the Color Change 4-17.............................
Configuration 4-18............................................
Transfer Pump Configuration 4-18............................
Hopper Configuration 4-19..................................
VT Inline Pump Configuration 4-20...........................
Ultrasonic Sieve Configuration 4-21..........................
Manual Operations 4-22.......................................
Shutdown 4-23...............................................
Maintenance 5-1...........................................
Daily Maintenance 5-1.......................................
VT Inline Powder Feed Pump 5-2..............................
Recommended Cleaning Procedure 5-2.....................

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Troubleshooting 6-1........................................
Repair 7-1.................................................
VT Inline Powder Feed Pump 7-1..............................
Pump Removal 7-1.......................................
Pump Installation 7-1.....................................
Venturi Throat Replacement 7-3............................
Injector Replacement 7-4..................................
Siphon Block 7-6...........................................
Disassembly 7-6.........................................
Reassembly 7-10..........................................
Pinch Valve Replacement 7-11..............................
Pinch Valve Removal 7-12................................
Pinch Valve Installation 7-12..............................
Blanking Plate Procedure 7-15..............................
Blanking Plate Installation 7-16............................
Adjusting the Clamp Handle 7-17..........................
Hopper 7-18................................................
Level Sensors 7-18........................................
Sieve Screen 7-18.........................................
Dump Valve Sleeve 7-20...................................
Parts 8-1...................................................
Introduction 8-1.............................................
Using the Illustrated Parts List 8-1..........................
Feed Center Controller 8-2...................................
Hopper 8-4................................................
Special Tools and Kits 8-5.................................
Sieve Screens 8-6........................................
Transfer Pump 8-7..........................................
VT Inline Pump 8-8.........................................
Options 8-9..............................................
Pump Manifold Siphon Block 8-10.............................
VT Siphon Pump Upgrade Kit 8-11..........................
VT Siphon Pump Pinch Valve Kit 8-11........................
VT Siphon Pump Check Valve Kit 8-11.......................
VT Siphon Pump Fluid Tube Kit 8-12.........................
VT 1-Pump Siphon Block Assembly Package 8-12.............
VT 2-Pump Siphon Block Assembly Package 8-12.............
Diagrams 9-1..............................................

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Safety 1-1
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Section 1
Safety
Introduction
Read and follow these safety instructions. Task- and equipment-specific
warnings, cautions, and instructions are included in equipment
documentation where appropriate.
Make sure all equipment documentation, including these instructions, is
accessible to all persons operating or servicing equipment.
Qualified Personnel
Equipment owners are responsible for making sure that Nordson equipment
is installed, operated, and serviced by qualified personnel. Qualified
personnel are those employees or contractors who are trained to safely
perform their assigned tasks. They are familiar with all relevant safety rules
and regulations and are physically capable of performing their assigned
tasks.
Intended Use
Use of Nordson equipment in ways other than those described in the
documentation supplied with the equipment may result in injury to persons
or damage to property.
Some examples of unintended use of equipment include
Susing incompatible materials
Smaking unauthorized modifications
Sremoving or bypassing safety guards or interlocks
Susing incompatible or damaged parts
Susing unapproved auxiliary equipment
Soperating equipment in excess of maximum ratings
Regulations and Approvals
Make sure all equipment is rated and approved for the environment in which
it is used. Any approvals obtained for Nordson equipment will be voided if
instructions for installation, operation, and service are not followed.
All phases of equipment installation must comply with all federal, state, and
local codes.

Safety
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Personal Safety
To prevent injury, follow these instructions.
SDo not operate or service equipment unless you are qualified.
SDo not operate equipment unless safety guards, doors, or covers are
intact and automatic interlocks are operating properly. Do not bypass or
disarm any safety devices.
SKeep clear of moving equipment. Before adjusting or servicing any
moving equipment, shut off the power supply and wait until the
equipment comes to a complete stop. Lock out power and secure the
equipment to prevent unexpected movement.
SRelieve (bleed off) hydraulic and pneumatic pressure before adjusting or
servicing pressurized systems or components. Disconnect, lock out,
and tag switches before servicing electrical equipment.
SObtain and read Safety Data Sheets (SDS) for all materials used.
Follow the manufacturer’s instructions for safe handling and use of
materials, and use recommended personal protection devices.
STo prevent injury, be aware of less-obvious dangers in the workplace
that often cannot be completely eliminated, such as hot surfaces, sharp
edges, energized electrical circuits, and moving parts that cannot be
enclosed or otherwise guarded for practical reasons.
Fire Safety
To avoid a fire or explosion, follow these instructions.
SDo not smoke, weld, grind, or use open flames where flammable
materials are being used or stored.
SProvide adequate ventilation to prevent dangerous concentrations of
volatile materials or vapors. Refer to local codes or your material SDS
for guidance.
SDo not disconnect live electrical circuits while working with flammable
materials. Shut off power at a disconnect switch first to prevent
sparking.
SKnow where emergency stop buttons, shutoff valves, and fire
extinguishers are located. If a fire starts in a spray booth, immediately
shut off the spray system and exhaust fans.
SClean, maintain, test, and repair equipment according to the instructions
in your equipment documentation.
SUse only replacement parts that are designed for use with original
equipment. Contact your Nordson representative for parts information
and advice.

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Grounding
WARNING: Operating faulty electrostatic equipment is hazardous and can
cause electrocution, fire, or explosion. Make resistance checks part of your
periodic maintenance program. If you receive even a slight electrical shock
or notice static sparking or arcing, shut down all electrical or electrostatic
equipment immediately. Do not restart the equipment until the problem has
been identified and corrected.
Grounding inside and around the booth openings must comply with NFPA
requirements for Class II, Division 1 or 2 Hazardous Locations. Refer to
NFPA 33, NFPA 70 (NEC articles 500, 502, and 516), and NFPA 77, latest
conditions.
SAll electrically conductive objects in the spray areas shall be electrically
connected to ground with a resistance of not more than 1 megohm as
measured with an instrument that applies at least 500 volts to the circuit
being evaluated.
SEquipment to be grounded includes, but is not limited to, the floor of the
spray area, operator platforms, hoppers, photoeye supports, and
blow-off nozzles. Personnel working in the spray area must be
grounded.
SThere is a possible ignition potential from the charged human body.
Personnel standing on a painted surface, such as an operator platform,
or wearing non-conductive shoes, are not grounded. Personnel must
wear shoes with conductive soles or use a ground strap to maintain a
connection to ground when working with or around electrostatic
equipment.
SOperators must maintain skin-to-handle contact between their hand and
the gun handle to prevent shocks while operating manual electrostatic
spray guns. If gloves must be worn, cut away the palm or fingers, wear
electrically conductive gloves, or wear a grounding strap connected to
the gun handle or other true earth ground.
SShut off electrostatic power supplies and ground gun electrodes before
making adjustments or cleaning powder spray guns.
SConnect all disconnected equipment, ground cables, and wires after
servicing equipment.
Action in the Event of a Malfunction
If a system or any equipment in a system malfunctions, shut off the system
immediately and perform the following steps:
SDisconnect and lock out electrical power. Close pneumatic shutoff
valves and relieve pressures.
SIdentify the reason for the malfunction and correct it before restarting the
equipment.
Disposal
Dispose of equipment and materials used in operation and servicing
according to local codes.

Safety
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Description 2-1
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Section 2
Description
Introduction
The Nordson SpectrumrVT Feed Center conditions and supplies powder
for up to 36 powder spray guns, with a maximum of 32 automatic spray
guns and 4 manual spray guns. It contains a fresh powder feed system
using the Nordson dense phase technology/high density-low velocity, along
with an ultrasonic sieve, level sensors, reclaim circuit, and
electrical/pneumatic controls via a touch screen operator interface.
The Spectrum VT provides quick color changes and automatic purge
cleaning. The VT hopper receives reclaimed and fresh powder. The
powder is then sieved and sent to the spray guns using the Spectrum
Venturi (VT) inline powder feed pumps.
The Spectrum VT is offered in two configurations:
Configuration Hopper Hopper Capacity
in3(cm3)
Components
Standard 300-mm Hopper 1343 (22000) Up to 18
pumps/spray guns
Large 425-mm Hopper 2686 (44000) Up to 36
pumps/spray guns
PD19386
Standard Configuration Large Configuration
Figure 2-1 Spectrum VT Feed Center Configurations

Description
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Introduction (contd)
The color change operation is automatic and is initiated by the touch screen
control panel. During a color change, the VT hopper cycles through a
number of cleaning processes. High-pressure purge air is pulsed through
the powder feed pumps, hoses, and spray guns to clean them of powder.
This also cleans the sieve section and hopper itself, leaving minimal
cleaning for the operator. The reclaim and fresh powder transfer pumps can
be purged manually, as required.
The Spectrum VT feed center requires a remote air extraction system that
provides a constant airflow through the enclosure, preventing powder
escaping into the spray room. The typical extraction system has a dust
collector assembly consisting of an exhaust fan, primary cartridge filters,
pulse valves and controls, and final filters. A round duct connection is
provided at the top of the feed center enclosure.

Description 2-3
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Components
See Figure 2-2.
PD19386
1
3A
4
5
2
6
7
8
3B
9
10
11
12
13
14
Figure 2-2 Major Components of Spectrum VT (shown with large system configuration)
1. Extraction duct
2. Stack sleeve
3A. Manual air spray gun (high pressure)
3B. Manual air spray gun (low pressure)
4. Hopper fluidizing gauge
5. Hopper fluidizing regulator
6. Spectrum hopper
7. Waste powder ports
8. Vibratory box feeder (VBF)
9. Primary transfer pump
10. Pump manifold
11. Secondary fresh powder transfer
pump (optional on standard)
12. Pick-up tube
13. Bulk powder
14. Siphon block
Note: Reclaim transfer pump located near cyclone.

Description
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Transfer Pumps
The Spectrum VT uses the Prodigyrhigh capacity HDLV pump as a transfer
pump for both fresh and reclaimed powder.
The fresh powder transfer pump is mounted to the feed center to deliver
fresh powder into the system from a box, drum unloader, or both.
NOTE: Generally, there is one fresh powder transfer pump with the
300-mm hopper, and there are two fresh powder transfer pumps with the
425-mm hopper.
The reclaim transfer pump is mounted near the cyclone to transport
over-sprayed powder from the booth recovery system to the feed center.
NOTE: Reclaim transfer pumps are sold separately.
For information related to transfer pumps, see Prodigy High Capacity HDLV
Pump manual.

Description 2-5
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Spectrum Hopper
See Figure 2-3. The Spectrum hopper has 12-mm tubing connections.
10014043
2
1
3
5
4
6
8
7
Figure 2-3 VT Hopper
1. Fresh powder inlet
2. Reclaim powder inlet
3. Sieve screen
4. Lid latch
5. Powder tube knob
6. Level sensors
7. Lid sensor
8. Dump valve

Description
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VT Inline Powder Feed Pump
See Figure 2-4.
SpectrumRVT inline powder pumps are used in powder feed centers to
draw powder from a container, atomize the powder stream, and transfer it to
powder spray guns. The pumps can be used with 11-mm or 12.7-mm
Nordson antistatic powder feed hose.
PD18821
Figure 2-4 VT Inline Powder Pump

Description 2-7
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Optional Component List
Optional components include:
SAdditional fresh powder transfer pump (300-mm hopper only)
SVT inline powder feed pumps
SReclaim transfer pump
SSieve screens
Sieve Screens
See Table 2-1.
The ultrasonic sieve screen conditions the powder received from the
transfer pumps before delivery to the spray guns.
The sieve screens are offered in a range of sizes, varying by microns.
Table 2-1 Sieve Screens
Part Number Size Microns Wire Diameter
768675
300-mm
300 0.065 mm
768676 250 0.100 mm
768677 200 0.090 mm
768678 160 0.100 mm
1610110 300 0.112 mm
1612914 500 0.160 mm
1612915
425-mm
500 0.160 mm
1610111 300 0.112 mm
1610112 300 0.065 mm
1610113 250 0.100 mm
1610114 200 0.090 mm
1610115 160 0.100 mm

Description
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Electrical and Pneumatic Controls
See Figure 2-5 and Figure 2-6.
NOTE: For electrical requirements for the Spectrum feed center , refer to
page 2-11.
PD18838_08
1
3
4
5
2
Figure 2-5 Electrical and Pneumatic Controls (1 of 2)
1. Light tower
2. Electrical control panel
3. Main Disconnect
4. Touch screen interface
5. Emergency stop