Graco ProBell Parts list manual

Instructions and Parts
ProBell® Air Controllers 3A3954B
EN
For manual or electronic air control of a ProBell rotary applicator as part of a paint coating system. For
professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
Important Safety Instructions
Read all warnings and instructions in this manual and in your
ProBell® Rotary Applicator manual. Save these instructions.
100 psi (0.7 MPa, 7.0 bar) Maximum Air
Inlet Pressure
PROVEN QUALITY. LEADING TECHNOLOGY.

Contents
Models............................................................... 2
Related Manuals ................................................ 2
Warnings ........................................................... 3
ProBell System Information ................................. 5
System Connections and Features ...................... 6
Component Identification..................................... 7
Installation.......................................................... 9
Mount the Controller..................................... 9
Ground the Controller................................... 11
Controller Connections........................................ 12
Connect Air Lines......................................... 14
Connect Communication Cables ................... 14
Connect Power ............................................ 16
Set Air Control Identity ................................. 16
Wiring the Paint Trigger Input ....................... 16
Wiring the Optional Interlock Input................. 17
Troubleshooting.................................................. 18
Repair................................................................ 22
Prepare for Service ...................................... 24
Replace the Control Module.......................... 24
Replace a Trigger or Auxiliary Solenoid
Valve ............................................. 27
Replace the Voltage to Pressure (V2P)
Regulator ....................................... 28
Replace A Shaping Air Solenoid Valve........... 29
Replace the Pressure Switch ........................ 30
Replace a Pressure Gauge........................... 30
Replace A Pressure Regulator...................... 31
Replace the Bearing Air Filter ....................... 31
Parts.................................................................. 32
Electronic Air Controller (Model
24Z222) ......................................... 32
Manual Air Controller (Model 24Z221) ........... 35
Kits and Accessories........................................... 39
Technical Specifications...................................... 41
Graco Standard Warranty.................................... 42
Models
Model Description Certification
24Z221Manual Air Controller
24Z222 Electronic Air Controller
Related Manuals
Manual No. Description
334452 ProBell®Rotary Applicator, Instructions/Parts
334626 ProBell®Rotary Applicator, Hollow Wrist, Instructions/Parts
3A3657 ProBell®Electrostatic Controller
3A3953 ProBell®Speed Controller
3A3955 ProBell®System Logic Controller
3A4384 ProBell®System CGM Installation Kit
3A4232 ProBell®Cart Systems
3A4346 ProBell®Hose Bundle
3A4738 ProBell®Relective Speed Detection Kit
3A4799A ProBell®Air Filters Kit
23A3954B

Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The
exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific
risks. When these symbols appear in the body of this manual or on warning labels, refer back to these
Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout
the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or
solvent flowing through the system can cause static sparking. To help prevent fire or explosion:
• Electrostatic equipment must be used only by trained, qualified personnel who understand
the requirements of this manual.
• Ground all equipment, personnel, object being sprayed, and conductive objects in or close to
the spray location. Resistance must not exceed 1 megohm. See Grounding instructions.
•Donotuse
pail liners unless they are conductive and grounded.
• Always use the required arc detection settings and maintain a safe distance of at least 6
inches (152 mm) between the applicator and the workpiece.
•Stop operation immediately if static sparking or repeated arc detection errors occur. Do not
use equipment until you identify and correct the problem.
•Checka
pplicator resistance and electrical grounding daily.
• Use and clean equipment only in a well ventilated location.
• Always turn off and discharge the electrostatics when flushing, cleaning or servicing
equipment.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and
plastic drop cloths (potential static arc).
• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.
• Keep the spray area clean at all times. Use non-sparking tools to clean residue from the
booth and hangers.
• Keep a working fire extinguisher in the work location.
• Interlock the gun air and fluid supply to prevent operation unless ventilation air flow is above
the minimum required value.
• Interlock the Electrostatic Controller and fluid supply with the booth ventilation system to
disable operation if the air flow falls below minimum values. Follow your local codes.
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can
cause electric shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before
servicing or installing equipment.
•Con
nect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes
and regulations.
3A3954B 3

Warnings
WARNING
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated
system component. See Technical Specifications in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical
Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings.
For complete information about your material, request the Safety Data Sheet (SDS) from
distributor or retailer.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine
manufacturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals
and create safety hazards.
• Make sure all equipment is rated and approved for the environment in which youareusingit.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work location.
• Comply with all applicable safety regulations.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work location to help prevent serious
injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective
equipment includes but is not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent
manufacturer.
43A3954B

ProBell System Information
ProBell System
Information
The ProBell Air Controller is an optional component in
the ProBell Rotary Applicator system. The Electronic
Air Controller sends air activation signals for the
paint, dump, and solvent (cup wash) valves. It also
electronically controls the inner and outer shaping
air pressures. The Manual Air Controller controls
all air in the system. Manual air regulators are
used to set the turbine and shaping air pressures.
This manual covers information specific to the Air
Controllers. It includes information on installation,
troubleshooting, repair, and parts. See the ProBell
Rotary Applicator manual (334452 or 334626) for
all system information, including how to install and
connect the whole system, required interlocks,
system grounding, and required electrical tests.
The applicator manual also contains all operation
information. See the System Logic Controller Manual
(3A3955) for details on how to set up parameters for
the Air Controller.
Figure 1 ProBell Electronic Air Controller, shown on
Cart (sold separately)
3A3954B 5

System Connections and Features
System Connections and Features
Air Line Port Label Speed Controller
Connections
Electronic
Air Controller
Connections
Manual Air
Controller
Connections
B(BearingAi
r) **
BK (Braking Air) 
BR (Bearing Air Return) **
DT (Dump Valve Trigger) 
PT (Paint Valve Trigger) 
SI (Shaping Air Inner) 
SO (Shaping Air Outer) 
ST (Solvent Trigger) 
TA (Turbine Air) **
Auxiliary Triggers (for system
flexibility)
1, 2, 3, 
*Insystems with a speed controller, bearing air, bearing air return, and turbine air must be used from the
speed controller, not the manual air controller.
63A3954B

Component Identification
Component Identification
Electronic Air Controller
Ref. Component
AControl Module — manages the operation
of all air controller components
BTerm
inal Blocks —provide electrical wire
connections
C Solenoid Valves — send air activation
signals for paint, dump, and solvent valves;
auxiliary signals available for system
flexibility
DAir Manifold — directs incoming air to the
controller components
EInner Shaping Air Solenoid Valve — shuts
off the flow of the inner shaping air
Ref. Component
FOuter Shaping Air Solenoid Valve — shuts
off the flow of the outer shaping air
GVoltage to Pressure Regulator — converts
voltage to pressure for the inner shaping air
HVolt
age to Pressure Regulator — converts
voltage to pressure for the outer shaping air
JOptocoupler — isolated input to trigger
paint valve from PLC
3A3954B 7

Component Identification
Manual Air Controller
Ref. Component
AControl Module — manages the operation
of all air controller components
B Terminal Blocks —provide electrical wire
connections
CSole
noid Valves — send air activation
signals for paint, dump, and solvent valves;
auxiliary signals available for system
flexibility
JPressure Switch — verifies that the bearing
air is at least 70 psi.
KHigh-Flow Remote — piloted regulator for
turbine air
LHigh-Flow Remote — piloted regulator for
inner shaping air
MHigh-Flow Remote — piloted regulator for
outer shaping air
Ref. Component
NOuter Shaping Air Regulator — air pressure
signal to regulator M
PInner Shaping Air Regulator — air pressure
signal to regulator L
RTurb
ine Air Regulator — air pressure signal
to regulator K
S Outer Shaping Air Gauge
TInner Shaping Air Gauge
UTurbine Air Gauge
VAir
Filter — supplementary coalescing
air filter, protects the bearing from any
particles that get through the main air
filtering system.
WOptocoupler — isolated input to trigger
paint valve from PLC
83A3954B

Installation
Installation
Mount the Controller
To reduce the risk of fire or explosion, do not install
equipment approved only for a non-hazardous
location in a hazardous location.
NOTE: Install the air controller in a non-hazardous
location only.
The air controller can be mounted on the control box
stand or wall mounted. The box comes with four
mounting brackets installed in a vertical orientation.
Remove and turn the brackets if a horizontal
orientation works better for your installation.
Wall Mounting
The pre-installed mounting brackets can be used to
mount the controller on any flat wall. Mount the Air
Controller in the non-hazardous area, as close to
the applicator as possible to minimize pressure loss
in the air lines.
1. Determine the mounting location. Ensure that
the wall is strong enough to support the weight
of the mounting bracket and the controller. See
Technical Specifications, page 41.
2. See the Dimensions or use the box as a template
to mark the mounting hole locations.
3. Drill holes and use four screws to attach the
controller to the wall.
Electronic Air Controller
3A3954B 9

Installation
Manual Air Controller
Cart Mounting
For some ordering options, the air controller will be
mounted on the cart at the factory. If the cart was
ordered separately, follow these steps:
1. Remove the 4 mounting brackets. Turn them so
they are oriented horizontally. Reattach them to
the air controller box.
2. Use four screws (provided with cart) to mount
the air controller box on the cart in the location
showninFigure1.
10 3A3954B