Graco Reactor H-VR Use and care manual

Repair - Parts
H-VR
Hydraulic Variable Ratio, Heated, Plural-Component Proportioner
For spraying polyurethane foam and polyurea coatings.
Not for use in explosive atmospheres.
See page 3 for model information, including maximum
working pressure and approvals.
U.S. Patent Pending
Russian Patent No. 2359181
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
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313540L
EN

2313540L
Contents
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Supplied Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Important Two-Component Material Information . 7
Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 7
For all applications except spray foam . . . . . . . . 8
Material Self-ignition . . . . . . . . . . . . . . . . . . . . . . 8
Keep Components A and B Separate . . . . . . . . . 8
Moisture Sensitivity of Isocyanates . . . . . . . . . . . 8
Foam Resins with 245 fa Blowing Agents . . . . . . 9
Changing Materials . . . . . . . . . . . . . . . . . . . . . . . 9
Temperature Control Diagnostic Codes . . . . . . . 10
E01: High fluid temperature . . . . . . . . . . . . . . . 10
E02: High zone current . . . . . . . . . . . . . . . . . . . 11
E03: No zone current . . . . . . . . . . . . . . . . . . . . 11
E04: Fluid Temperature Sensor (FTS) or
thermocouple disconnected . . . . . . . . . . . . 12
E05: Circuit board overheated . . . . . . . . . . . . . 12
E06: Communication cable unplugged . . . . . . . 12
Motor Control Diagnostic Codes . . . . . . . . . . . . . 13
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
E21: No component A transducer . . . . . . . . . . . 13
E22: No component B transducer . . . . . . . . . . . 13
E23: High fluid pressure . . . . . . . . . . . . . . . . . . 13
E24: Pressure imbalance . . . . . . . . . . . . . . . . . 14
E27: High motor temperature . . . . . . . . . . . . . . 15
E30: Momentary loss of communication . . . . . . 16
E31: Pumpline reversing switch failure/high cycle
rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
E99: Loss of communication . . . . . . . . . . . . . . . 16
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reactor Electronics . . . . . . . . . . . . . . . . . . . . . . 17
Primary Heaters (A and B) . . . . . . . . . . . . . . . . 19
Hose Heat System . . . . . . . . . . . . . . . . . . . . . . 20
Hydraulic Drive System . . . . . . . . . . . . . . . . . . . 22
Proportioning System . . . . . . . . . . . . . . . . . . . . 24
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Pressure Relief Procedure . . . . . . . . . . . . . . . . 28
Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Proportioning Pumps . . . . . . . . . . . . . . . . . . . . . 29
Circuit Breaker Module . . . . . . . . . . . . . . . . . . . 31
Electric Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Motor Control Board . . . . . . . . . . . . . . . . . . . . . 33
Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Electric Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Temperature Control Module . . . . . . . . . . . . . . . 36
Primary Heaters . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heated Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Fluid Temperature Sensor (FTS) . . . . . . . . . . . . 41
Display Module . . . . . . . . . . . . . . . . . . . . . . . . . 43
Inlet Fluid Strainer Screen . . . . . . . . . . . . . . . . . 45
Change Hydraulic Fluid and Filter . . . . . . . . . . . 45
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sub Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . 58
Pump Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 58
Hydraulic Directional Valve Assembly . . . . . . . . 60
7.65 kW Single Zone Heater . . . . . . . . . . . . . . . 61
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Temperature Control . . . . . . . . . . . . . . . . . . . . . 63
Fluid Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Circuit Breaker Modules . . . . . . . . . . . . . . . . . . 65
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 70
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 70

Models
313540L 3
Models
H-VR SERIES
* Full load amps with all devices operating at maximum capabilities. Fuse requirements at various flow rates and
mix chamber sizes may be less.
Maximum flow rate given for 60 Hz operation. For 50 Hz operation, maximum flow rate is 5/6 of 60 Hz maximum
flow.
Part,
Series
Full Load
Peak
Amps* Per
Phase
Voltage
(phase)
System
Watts†
Primary
Heater
Watts
Max Flow
Rate
lb/min
(kg/min)
Approximate
Output per
Cycle (A+B)
gal. (liter)
Hydraulic
Pressure
Ratio
Maximum Fluid
Working Pressure
psi (MPa, bar)
256886 71 230V (3) 26,600 15,300 30 (13.6) Variable Variable 3500 (24.1, 241)
256887 41 400V (3) 26,600 15,300 30 (13.6) Variable Variable 3500 (24.1, 241)

Supplied Manuals
4313540L
Supplied Manuals
The following manuals are used with the Reactor™
HV-R Proportioner. Refer to these manuals for detailed
equipment information.
Order Part 15M334 for a compact disk of Reactor manu-
als.
Related Manuals
The following manuals are for accessories used with the
Reactor™.
Reactor Hydraulic Proportioner
Part Description
313539 Reactor H-VR Proportioner, Operation
Manual (English)
Reactor Electrical Diagrams
Part Description
312064 Reactor Hydraulic Proportioner,
Electrical Diagrams (English)
Fluid Pump
Part Description
313485 Pump Instructions-Parts Manual
(English)
Feed Pump Kits
Part Description
309815 Instruction-Parts Manual (English)
Air Supply Kit
Part Description
309827 Instruction-Parts Manual (English) for
Feed Pump Air Supply Kit
Circulation and Return Tube Kits
Part Description
309852 Instruction-Parts Manual (English)
Heated Hose
Part Description
309572 Instruction-Parts Manual (English)
Circulation Kit
Part Description
309818 Instruction-Parts Manual (English)
Circulation Valve Kit
Part Description
312070 Instruction-Parts Manual (English)
Data Reporting Kit
Part Description
309867 Instruction-Parts Manual (English)
Rupture Disk Assembly Kit
Part Description
309969 Instruction-Parts Manual (English)

Warnings
313540L 5
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
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 cord before servicing equipment.
• Use only grounded electrical outlets.
• Use only 3-wire extension cords.
• Ensure ground prongs are intact on power and extension cords.
• Do not expose to rain. Store indoors.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled or
swallowed.
• Read Safety Data Sheet (SDS) for handling instructions and to know the specific hazards of the
fluids you are using, including the effects of long-term exposure.
• When spraying, servicing equipment, or when in the work area, always keep work area well
ventilated and always wear appropriate personal protective equipment. See Personal Protective
Equipment warnings in this manual.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
PERSONAL PROTECTIVE EQUIPMENT
Always wear appropriate personal protective equipment and cover all skin when spraying, servicing
equipment, or when in the work area. Protective equipment helps prevent serious injury, including
long-term exposure; inhalation of toxic fumes, mists or vapors; allergic reaction; burns; eye injury and
hearing loss. This protective equipment includes but is not limited to:
• A properly fitting respirator, which may include a supplied-air respirator, chemically impermeable
gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local
regulatory authority.
• Protective eyewear and hearing protection.
SKIN INJECTION HAZARD
High-pressure fluid from gun, hose leaks, or ruptured components will pierce skin. This may look like just
a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
• Do not point gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.

Warnings
6313540L
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical
reaction and equipment rupture, and result in death, serious injury, and property damage.
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 com-
ponent. See Technical Data in all equipment manuals.
• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure in this manual when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
• Do not alter or modify equipment.
• 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 area.
• Comply with all applicable safety regulations.
OR
MOVING PARTS HAZARD
Moving parts can pinch or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment,
follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns:
• Do not touch hot fluid or equipment.
• Wait until equipment/fluid has cooled completely.
WARNING

Important Two-Component Material Information
313540L 7
Important Two-Component Material Information
Isocyanate Conditions
Spraying or dispensing fluids that contain isocyanates creates potentially harmful mists, vapors, and atomized
particulates.
• Read and understand the fluid manufacturer’s warnings and Safety Data Sheet (SDS) to know specific haz-
ards and precautions related to isocyanates.
• Use of isocyanates involves potentially hazardous procedures. Do not spray with this equipment unless you
are trained, qualified, and have read and understood the information in this manual and in the fluid manu-
facturer’s application instructions and SDS.
• Use of incorrectly maintained or mis-adjusted equipment may result in improperly cured material.which
could cause off gassing and offensive odors. Equipment must be carefully maintained and adjusted accord-
ing to instructions in the manual.
• To prevent inhalation of isocyanate mists, vapors and atomized particulates, everyone in the work area
must wear appropriate respiratory protection. Always wear a properly fitting respirator, which may include
a supplied-air respirator. Ventilate the work area according to instructions in the fluid manufacturer’s SDS.
• Avoid all skin contact with isocyanates. Everyone in the work area must wear chemically impermeable
gloves, protective clothing and foot coverings as recommended by the fluid manufacturer and local regu-
latory authority. Follow all fluid manufacturer recommendations, including those regarding handling of con-
taminated clothing. After spraying, wash hands and face before eating or drinking.
• Hazard from exposure to isocyanates continues after spraying. Anyone without appropriate personal pro-
tective equipment must stay out of the work area during application and after application for the time period
specified by the fluid manufacturer. Generally this time period is at least 24 hours.
• Warn others who may enter work area of hazard from exposure to isocyanates. Follow the recommenda-
tions of the fluid manufacturer and local regulatory authority. Posting a placard such as the following outside
the work area is recommended:
TOXIC FUMES
HAZARD
DO NOT ENTER DURING
SPRAY FOAM APPLICATION
OR FOR ___ HOURS AFTER
APPLICATION IS COMPLETE
DO NOT ENTER UNTIL:
DATE:
TIME:
____________
____________

Important Two-Component Material Information
8313540L
For all applications except spray
foam
Material Self-ignition
Keep Components A and B
Separate
Moisture Sensitivity of
Isocyanates
Exposure to moisture (such as humidity) will cause ISO to par-
tially cure, forming small, hard, abrasive crystal that become
suspended in the fluid. Eventually a film will form on the sur-
face and the ISO will begin to gel, increasing in viscosity.
NOTE: The amount of film formation and rate of crystallization
varies depending on the blend of ISO, the humidity, and the
temperature.
Spraying or dispensing fluids that contain isocyanates
creates potentially harmful mists, vapors, and atomized
particulates.
• Read and understand the fluid manufacturer’s warnings
and Safety Data Sheet (SDS) to know specific hazards
and precautions related to isocyanates.
• Use of isocyanates involves potentially hazardous proce-
dures. Do not spray with this equipment unless you are
trained, qualified, and have read and understood the
information in this manual and in the fluid manufacturer’s
application instructions and SDS.
• Use of incorrectly maintained or mis-adjusted equipment
may result in improperly cured material. Equipment must
be carefully maintained and adjusted according to
instructions in the manual.
• To prevent inhalation of isocyanate mists, vapors, and
atomized particulates, everyone in the work area must
wear appropriate respiratory protection. Always wear a
properly fitting respirator, which may include a sup-
plied-air respirator. Ventilate the work area according to
instructions in the fluid manufacturer’s SDS.
• Avoid all skin contact with isocyanates. Everyone in the
work area must wear chemically impermeable gloves,
protective clothing and foot coverings as recommended
by the fluid manufacturer and local regulatory authority.
Follow all fluid manufacturer recommendations, including
those regarding handling of contaminated clothing. After
spraying, wash hands and face before eating or drinking.
Some materials may become self-igniting if applied too
thick. Read material manufacturer’s warnings and Safety
Data Sheet (SDS).
Cross-contamination can result in cured material in fluid
lines which could cause serious injury or damage equip-
ment. To prevent cross-contamination:
•Never interchange component A and component B
wetted parts.
• Never use solvent on one side if it has been contami-
nated from the other side.
NOTICE
Partially cured ISO will reduce performance and the life of all
wetted parts.
• Always use a sealed container with a desiccant dryer in
the vent, or a nitrogen atmosphere. Never store ISO in
an open container.
• Keep the ISO pump wet cup or reservoir (if installed)
filled with appropriate lubricant. The lubricant creates a
barrier between the ISO and the atmosphere.
• Use only moisture-proof hoses compatible with ISO.
• Never use reclaimed solvents, which may contain mois-
ture. Always keep solvent containers closed when not in
use.
• Always lubricate threaded parts with an appropriate
lubricant when reassembling.

Important Two-Component Material Information
313540L 9
Foam Resins with 245 fa
Blowing Agents
Some foam blowing agents will froth at temperatures above
90°F (33°C) when not under pressure, especially if agitated.
To reduce frothing, minimize preheating in a circulation sys-
tem.
Changing Materials
NOTICE
Changing the material types used in your equipment
requires special attention to avoid equipment damage
and downtime.
• When changing materials, flush the equipment
multiple times to ensure it is thoroughly clean.
• Always clean the fluid inlet strainers after flushing.
• Check with your material manufacturer for chemi-
cal compatibility.
• When changing between epoxies and urethanes
or polyureas, disassemble and clean all fluid com-
ponents and change hoses. Epoxies often have
amines on the B (hardener) side. Polyureas often
have amines on the B (resin) side.

Temperature Control Diagnostic Codes
10 313540L
Temperature Control Diagnostic Codes
Temperature control diagnostic codes appear on tem-
perature display.
These alarms turn off heat. E99 clears automatically
when communication is regained. Codes E03 through
E06 can be cleared by pressing . For other codes,
turn main power OFF then ON to
clear.
NOTE: For hose zone only, if FTS is disconnected at
startup, display will show hose current 0A.
E01: High fluid temperature
Causes of E01 Errors
• Thermocouple A or B (310) senses a fluid tempera-
ture above 230°F (110°C).
• Fluid temperature sensor (FTS) senses a fluid tem-
perature above 230°F (110°C).
• Overtemperature switch A or B (408) senses a fluid
temperature above 230°F (110°C) and opens. At
190°F (87°C) the switch closes again.
• Thermocouple A or B (410) fails, is damaged, is not
touching the heater element (407), or has a poor
connection to the temperature control board.
• Overtemperature switch A or B (408) fails in the
open position.
• The temperature control board fails to turn off any
heat zone.
• Zone power wires or thermocouples are switched
from one zone to another.
• Failed heater element where thermocouple is
installed.
• Loose wire
Checks
Check which zone is displaying the E01 error.
1. Check that connector B is firmly plugged into tem-
perature control module (see FIG. 9, page 36).
2. Clean and re-plug connections.
3. Check connections between the temperature con-
trol module and overtemperature switches A and B
(308), and between temperature control module and
thermocouples A and B (410) or FTS (21) [depend-
ing on which zone is displaying E01]. See TABLE 6,
page 36. Ensure that all wires are securely con-
nected to connector B.
Code Code Name Alarm
Zone
Corrective
Action page
01 High fluid temperature Individual 10
02 High zone current Individual 11
03 No zone current with
hose heater on
Individual 11
04 FTS not connected Individual 12
05 Board overtemperature Individual 12
06 Communication cable
unplugged from module
Individual 12
99 Loss of communication A 16
Troubleshooting this equipment requires access to
parts that may cause electric shock or other serious
injury if work is not performed properly. Have a quali-
fied electrician perform all electrical troubleshooting.
Be sure to shut off all power to the equipment and
relieve all pressure (see Pressure Relief Procedure,
page 28) before repairing.

Temperature Control Diagnostic Codes
313540L 11
4. Remove connector B from temperature control mod-
ule, and check continuity of overtemperature
switches A and B, thermocouples A and B, or FTS
by measuring resistance across the pins on the plug
end; see TABLE 1.
NOTE: Before doing the following checks, note
which zone (A, B, FTS, or all) has high fluid tempera-
ture.
5. Verify fluid temperature, using an external tempera-
ture sensing device.
• If temperature is too high (sensor reading is
229°F [109°C] or above):
6. Check if thermocouples A and B are damaged, or
not contacting the heater element, page 39.
7. To test that temperature control module turns off
when equipment reaches temperature setpoint:
a. Set temperature setpoints far below displayed
temperature.
b. Turn zone on. If temperature rises steadily,
power board is failing.
c. Verify by swapping with another power module.
See Replacing Temperature Control Assem-
bly Modules, page 37.
d. If the swapped module does not fix the problem,
the power module is not the cause.
8. Verify continuity of heater elements with an ohmme-
ter, see page 38.
E02: High zone current
1. Check hose connections for electrical short, page
40.
2. Exchange zone module with another one. Turn
zone on and check for error (see page 37). If error
disappears, replace faulty module.
a. For hose zone: If error still occurs, perform
Transformer Primary Check and Trans-
former Secondary Check, starting on page 42.
NOTE: When there is a high current error, the LED
on that zone’s module will turn red while the error is
displayed.
E03: No zone current
1. Check for tripped circuit breaker inside electrical
cabinet or at power source for that zone. Replace
circuit breaker if it trips habitually.
2. Check for loose or broken connection at that zone.
3. Exchange zone module with another one. Turn
zone on and check for error (see page 37). If error
disappears, replace faulty module.
4. If E03 occurs for all zones, the contactor may not be
closing. Verify wiring from heater control to contac-
tor coil.
a. Hose zone: test hose continuity, page 40.
b. Perform Transformer Primary Check and
Transformer Secondary Check, starting on
page 42.
NOTE: When a no current error occurs, the LED on
the specific zone’s module turns red when the error
is displayed.
Table 1: Sensor Connector Continuity Checks
Pins Description Reading
1 & 2 OT switch A nearly 0 ohms
3 & 4 OT switch B nearly 0 ohms
5 & 6 Thermocouple A 4-6 ohms
8 & 9 Thermocouple B 4-6 ohms
11 & 12 FTS approximately 35
ohms per 50 ft (15.2
m) of hose, plus
approximately 10
ohms for FTS
10 & 12 FTS open

Temperature Control Diagnostic Codes
12 313540L
E04: Fluid Temperature Sensor
(FTS) or thermocouple
disconnected
1. Check temperature sensor connections to long
green connector (B) on temperature control module,
page 35. Unplug and re-plug sensor wires.
2. Test fluid temperature sensor continuity with ohm-
meter, page 10.
3. If an error occurred for the hose zone, check FTS
connections at each section of hose.
4. If an error occurred for the hose zone, test FTS by
plugging directly into machine.
5. To verify heater control module is not causing the
problem, use a wire to short-circuit the two pins cor-
responding to the FTS (red and yellow for A or B
zone, red and purple for hose). The display will
show the control heater module temperature.
6. If an error occurred for the hose zone, temporarily
use the current control mode. Refer to Reactor
H-VR Operation manual 313539.
E05: Circuit board overheated
NOTE: Each module has an on-board temperature
sensor. Heat is turned off if module temperature
exceeds 185°F (85°C) within the heater module.
1. Check that fan above electrical cabinet is operating.
2. Check that electrical cabinet door is properly
installed.
3. Check for obstructions blocking cooling holes in bot-
tom of electrical cabinet.
4. Clean heatsink fins behind heater control modules.
5. Ambient temperature may be too high. Allow Reac-
tor to cool by moving to a cooler location.
E06: Communication cable
unplugged
1. Unplug and re-plug cable that connects heater con-
trol module to heater module.
2. Replace communication cable if problem persists.
ti9878a
F

Motor Control Diagnostic Codes
313540L 13
Motor Control Diagnostic Codes
Motor control diagnostic codes E21 through E27 appear
on pressure display.
There are two types of motor control codes: alarms and
warnings. Alarms take priority over warnings.
Alarms
Alarms turn off Reactor. Turn main power OFF
then ON to clear.
NOTE: Alarms can also be cleared, except for code
23, by pressing .
Warnings
Reactor will continue to run. Press to clear. A
warning will not recur for a predetermined amount of
time (varies for different warnings), or until main power
is turned OFF then ON .
E21: No component A
transducer
1. Check transducer A connection at J3 on motor con-
trol board, page 34, and clean contacts.
2. Reverse A and B transducer connections. If error
moves to transducer B (E22), replace transducer A,
page 13. If error does not move, replace motor con-
trol board, page 33.
E22: No component B
transducer
1. Check transducer B connection at J8 on motor con-
trol board, page 34, and clean contacts.
2. Reverse A and B transducer connections. If error
moves to transducer A (E21), replace transducer B,
page 13. If error does not move, replace motor con-
trol board, page 33.
E23: High fluid pressure
1. Relieve pressure. Verify low pressure with analog
gauges. Turn main power OFF then ON
. If error persists, do checks below.
2. If pressure imbalance is set to Warning instead of
Alarm (see page 33), an E23 will occur. See E24:
Pressure imbalance for causes and checks.
3. Ensure at least one pump is in the number 1 posi-
tion. See Setup section of Reactor H-VR Operation
manual 313539.
4. If error still persists, reduce hydraulic pressure.
Code Code Name Alarm (A) or
Warning (W)
Corrective
Action
page
21 No transducer (compo-
nent A)
A13
22 No transducer (compo-
nent B)
A13
23 High fluid pressure A 13
24 Pressure imbalance A/W (to
select, see
page 33)
14
27 High motor temperature A 15
30 Momentary loss of com-
munication
A16
31 Pumpline reversing switch
failure/high cycle rate
A16
99 Loss of communication A 16
Code Code Name Alarm (A) or
Warning (W)
Corrective
Action
page

Motor Control Diagnostic Codes
14 313540L
E24: Pressure imbalance
NOTE: Upon initial start-up this diagnostic code will
not cause an alarm for 2 minutes.
NOTE: If the pressure difference between compo-
nents A and B exceeds 500 psi (3.5 MPa, 35 bar), an
E24 will occur. This default value is adjustable; see
the operation manual.
NOTE: If spraying at a ratio other than 1:1, an E24
may occur. Size hoses and mix chamber appropri-
ately to avoid pressure imbalance.
NOTE: E24 can be an alarm or a warning, as desired.
Set DIP switch on motor control board ON for alarm,
OFF for warning. See page 33.
Fast E24 Errors
Fast E24 errors occur:
• within 10 seconds of turning the pumps on, or
• as soon as you trigger the gun.
Causes of Fast E24 Errors
• one side of the gun is plugged.
• a pressure transducer has failed.
• damaged pump seals or check valve.
• no feed pressure or empty material drum.
• plugged heater.
• plugged hose.
• plugged manifold.
• one PRESSURE RELIEF/SPRAY valve is leaking or
is set to PRESSURE RELIEF/CIRCULATION .
Checks for Fast E24 Errors
NOTE: If a fast E24 error occurs, first check the
readings of the analog gauges.
• If the gauge readings are very close:
1. Clear the error (page 13) and try running the unit
again.
2. If E24 recurs and the gauge readings are still very
close, a pressure transducer has failed.
The digital display always shows the higher of the
two pressures. As soon as the higher analog pres-
sure drops below the lower analog pressure, the
display changes to the new higher reading. Knowing
this, the following checks will show which trans-
ducer has failed, or if the motor control board has
failed.
3. For testing purposes only, set DIP switch 2 on the
motor control board to OFF. See page 33. This will
allow the Reactor to continue to run with a pressure
imbalance.
c. Run the unit until pressure is 1000-1500 psi
(7-10.5 MPa, 70-105 bar). Shut down the unit,
clear the alarm, and power back up, but do not
depressurize the unit.
d. Check the analog gauges to see which pressure
is higher, and check if the display matches.
If the higher gauge and display match, that
transducer is communicating with the motor
control board. Continue with step e.
If the higher gauge and display do not
match, that transducer is not communicating
with the motor control board. Check wire con-
nections and replace transducer, page 35.
e. Turn pumps off. Reduce pressure of higher
component by slightly turning PRESSURE
RELIEF/SPRAY valve for that component
toward PRESSURE RELIEF/CIRCULATION
, while watching the display and the analog
gauges. As soon as the higher analog pressure
drops below the lower analog pressure, the dis-
play should change to the new higher reading.
Continue reducing the original higher pressure
an additional 200 psi (1.4 MPa, 14 bar); digital
display should stop dropping.
f. Repeat for the other side, to check the other
transducer.
ti9877a
1
Turn valve slightly
to reduce pressure
of higher
1

Motor Control Diagnostic Codes
313540L 15
4. To test if the failure is with the transducer or the
socket on the motor control board:
a. Reverse connections at J3 and J8 on the motor
control board.
b. Run the unit until pressure is 1000-1500 psi
(7-10.5 MPa, 70-105 bar).
c. If the problem stays on the same side as before,
replace the motor control board. If the problem
appears to move to the other side, replace the
transducer.
• If the gauge readings are not very close:
NOTE: Turn PRESSURE RELIEF/SPRAY valve only
enough to balance pressure. If you turn it com-
pletely, all pressure will bleed off.
2. If you cannot get the pressures to balance:
a. Check for damaged pump seals or check
valves.
b. Check if you’ve run out of material.
c. Check for a plugged fluid path by using the feed
pump to push fluid through the gun manifold.
3. If you are able to balance pressures, try running the
unit.
4. If a fast E24 error occurs again, and the gauges
readings are not very close:
a. Check and clean the gun inlet screens.
b. Check and clean the gun mix chamber impinge-
ment ports and center port. See gun manual.
NOTE: Some mix chambers have counter bored
impingement ports, requiring two drill sizes to clean
completely.
Slow E24 Errors
Slow E24 errors occur gradually. The pressures are bal-
anced when you begin spraying, but slowly become
imbalanced until an E24 occurs.
NOTE: If spraying at a ratio other than 1:1, an E24
may occur. Size hoses and mix chamber appropri-
ately to avoid pressure imbalance.
Causes of Slow E24 Errors
• one side of the gun is partially plugged.
• the A or B proportioner pump has failed.
• the A or B feed pump has failed.
• the A or B feed pump pressure is set too high.
• the hose is not heating properly.
• kinked supply hose.
• bottom of drum is damaged, causing blockage of
feed pump inlet.
• drum is not vented.
E27: High motor temperature
Causes of E27 Errors
• Motor temperature is too high. Reduce pressure,
gun tip size, or move Reactor to a cooler location.
Allow 1 hour for cooling.
• Make sure there is no obstruction to fan airflow.
Ensure that the motor/fan shroud is installed.
• Check that the motor overtemperature wire assem-
bly is plugged into J9 on the motor control board,
page 34.
• If the preceding checks do not correct the problem,
perform the following tests:
1. Turn main power OFF .
1. Secure bleed lines in grounded waste containers, or
route back to respective component A or B supply
drum. Reduce pressure of higher component by
slightly turning PRESSURE RELIEF/SPRAY valve
for that component toward PRESSURE
RELIEF/CIRCULATION , until gauges show
balanced pressures.
ti9877a
1
Turn valve slightly
to reduce pressure
of higher
1

Motor Control Diagnostic Codes
16 313540L
2. Allow motor to cool completely. Check continuity
between pins 1 and 2 on connector J9 on the motor
control board, page 33. If the resistance is infinity,
the motor thermal switch or the wire harness is bad.
Check wiring, measure thermal switch continuity at
motor, and replace failed part.
3. Unplug motor from J9 on motor control board. Install
jumper across pins 1 and 2 on board. If error still
occurs, replace motor control board.
4. If the E27 error is still occurring, the problem is with
the motor control board.
E30: Momentary loss of
communication
If communication is lost between the display and the
motor control board, the display will normally show E99.
The motor control board will register E30 (the red LED
will blink 30 times). When communications are recon-
nected, the display may show E30 briefly (no more than
2 seconds). If the display shows E30 continuously, there
is a loose connection causing the display and board to
repeatedly lose and regain communication.
E31: Pumpline reversing switch
failure/high cycle rate
Failure of a pumpline switch or switch mechanism may
result in a high cycle rate, causing an E31 to occur.
Replace the switch or switch mechanism. See Pumps
Do Not Reverse Direction, page 27.
E31 may also occur if the system is modified to produce
a higher flow rate.
E99: Loss of communication
If communication is lost between the motor control dis-
play and the motor control board, or the temperature
control display and the temperature control module, the
affected display will show E99.
1. Check all wiring between the display and the motor
control board and the temperature control module.
Pay close attention to the wire crimping at J13 on
the motor control board (page 34) and (C) on the
temperature control module (page 36). Unplug and
re-plug connectors.
2. Incoming voltage should be 230 Vac. Check the
temperature control module voltage at terminal
block (805) on the circuit breaker module (see page
65). Check the motor control board voltage at
motor/pumps circuit breaker (813), see page 31.
• Check if temperature control module or motor
control board is causing error:
3. Swap display connection on temperature control
module (C) with display connection on motor control
board (J13).
4. If error no longer occurs, the board or module was
at fault. Switch connections back to ensure connec-
tor was not poorly connected.

Troubleshooting
313540L 17
Troubleshooting
Reactor Electronics
Before performing any troubleshooting procedures:
1. Relieve pressure, page 28.
2. Turn main power OFF .
3. Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
PROBLEM CAUSE SOLUTION
Both sides of display do not
illuminate.
No power.
Plug in power cord.
Turn disconnect ON .
Low voltage. Ensure input voltage is within specifi-
cations, page 43.
Loose wire. Check connections, page 43.
Display disconnected. Check cable connections, page 43.
Temperature display does not
illuminate.
Display disconnected. Check cable connections, page 43.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Defective circuit board. Swap display connection to motor
control board with connection to
heater control board. If temperature
display illuminates, heater control
board is causing problem. Otherwise,
display cable or display is failing.
Pressure display does not
illuminate.
Display disconnected. Check cable connections, page 43.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Defective circuit board. Swap display connection to motor
control board with connection to
heater control board. If pressure dis-
play illuminates, motor control board
is causing problem. Otherwise, dis-
play cable or display is failing.
Erratic display; display turns on and
off.
Low voltage. Ensure input voltage is within specifi-
cations, page 43.
Poor display connection. Check cable connections, page 43.
Replace damaged cable.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Display cable not grounded. Ground cable, page 43.
Display extension cable too long. Must not exceed 100 ft (30.5 m)

Troubleshooting
18 313540L
Hose display reads OA at startup. FTS disconnected or not installed. Verify proper installation of FTS (see
H-VR Operation manual 313539), or
adjust FTS to desired current setting.
Display does not respond properly to
button pushes.
Poor display connection. Check cable connections, page 43.
Replace damaged cable.
Display cable damaged or corroded. Clean connections; replace cable if is
damaged.
Ribbon cable on display circuit board
disconnected or broken.
Connect cable (page 43) or replace.
Broken display button. Replace, page 43.
Red stop button does not work. Broken button (fused contact). Replace, page 43.
Loose wire. Check connections, page 43.
Fan not working.
Blown fuse. Verify with ohmmeter; replace if nec-
essary (page 43).
Loose wire. Check fan wire.
Defective fan. Replace, page 43.
PROBLEM CAUSE SOLUTION

Troubleshooting
313540L 19
Primary Heaters (A and B)
Before performing any troubleshooting procedures:
1. Relieve pressure, page 28.
2. Turn main power OFF .
3. Allow equipment to cool.
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
PROBLEM CAUSE SOLUTION
Primary heater(s) does not heat.
Heat turned off.
Press or zone
keys.
Temperature control alarm. Check temperature display for diag-
nostic code, page 10.
Signal failure from thermocouple. See E04: Fluid Temperature Sen-
sor (FTS) or thermocouple discon-
nected, page 12.
Control of primary heat is abnormal;
high temperature overshoots or E01
error occurs intermittently.
Dirty thermocouple connections. Examine connection of thermocou-
ples to long green plug on heater
control board. Unplug and re-plug
thermocouple wires, cleaning off any
debris. Unplug and re-plug long
green connector.
Thermocouple not contacting heater
element.
Loosen ferrule nut (N), push in ther-
mocouple (410) so tip (T) contacts
heater element (407). Holding ther-
mocouple tip (T) against heater ele-
ment, tighten ferrule nut (N) 1/4 turn
past tight. See page 39 for illustra-
tion.
Failed heater element. See Primary Heaters, page 19.
Signal failure from thermocouple. See E04: Fluid Temperature Sen-
sor (FTS) or thermocouple discon-
nected, page 12.
Thermocouple wired incorrectly. See E04: Fluid Temperature Sen-
sor (FTS) or thermocouple discon-
nected, page 12. Power up zones
one at a time and verify that tempera-
ture for each zone rises.
A
B

Troubleshooting
20 313540L
Hose Heat System
Before performing any troubleshooting procedures:
1. Relieve pressure, page 28.
2. Turn main power OFF .
3. Allow equipment to cool.
Problems
Try the recommended solutions in the order given for
each problem, to avoid unnecessary repairs. Also,
determine that all circuit breakers, switches, and con-
trols are properly set and wiring is correct before assum-
ing there is a problem.
PROBLEM CAUSE SOLUTION
Hose heats but heats slower than
usual or it does not reach tempera-
ture.
Ambient temperature is too cold. Use auxiliary hose heat system.
FTS failed or not installed correctly. Check FTS, page 12.
Low supply voltage. Verify line voltage. Low line voltage
significantly reduces power available
to hose heat system, affecting longer
hose lengths.
Hose does not maintain temperature
while spraying.
A and B setpoints too low. Increase A and B setpoints. Hose is
designed to maintain temperature,
not to increase it.
Ambient temperature is too cold. Increase A and B setpoints to
increase fluid temperature and keep
it steady.
Flow too high. Use smaller mix chamber. Decrease
pressure.
Hose was not fully preheated. Wait for hose to heat to correct tem-
perature before spraying.
Low supply voltage. Verify line voltage. Low line voltage
significantly reduces power available
to hose heat system, affecting longer
hose lengths.
Hose temperature exceeds setpoint.
A and/or B heaters are overheating
material.
Check primary heaters for either a
thermocouple problem or a failed ele-
ment attached to thermocouple, page
12.
Faulty thermocouple connections. Verify that all FTS connections are
snug and that pins of connectors are
clean. Examine connection of ther-
mocouples to long green plug on
heater control board. Unplug and
re-plug thermocouple wires, cleaning
off any debris. Unplug and re-plug
long green connector on heater con-
trol board.