CHIEF Vulcan ADU CHH5404 User guide

VULCAN ADU INFRARED HEATER
FOR CAR BODY SHOP ORIGINAL INSTRUCTION MANUAL
TROLLEY ITEM CHH5404
GENERATOR ITEM CHH5402
CHILLER ITEM CHH5403
ITEM CHH5408
ITEM CHH5409
CHIEF Automotive Technologies 996 Industrial Drive . Madison, IN 47250
Phone: [phone] Fax [phone] EMAIL [email protected]
DOCUMENT NUMBER:
IN20784
EDITION:
09 / 29 / 2016

TABLE OF CONTENTS
INTRODUCTION ................................................................................................................................3
SYMBOLS USED................................................................................................................................3
IDENTIFICATION OF THE MAIN PARTS OF THIS MACHINE..........................................................4
STANDARD ACCESSORIES .............................................................................................................4
OPTIONS............................................................................................................................................4
TECHNICAL SPECIFICATIONS.........................................................................................................4
GENERAL DESCRIPTION.................................................................................................................5
SAFETY REQUIREMENTS................................................................................................................5
INSTALLATION..................................................................................................................................6
ASSEMBLY ........................................................................................................................................6
COOLING SYSTEM............................................................................................................................6
ELECTRIC INSTALLATION................................................................................................................6
WORK ................................................................................................................................................7
PRELIMINARY CHECKS....................................................................................................................7
PROGRAMMING................................................................................................................................7
PROCESS ..........................................................................................................................................8
DESCRIPTION ...................................................................................................................................8
MAINTENANCE..................................................................................................................................9
ORDINARY MAINTENANCE..............................................................................................................9
EXTRAORDINARY MAINTENANCE..................................................................................................9
SERVICE AND WARRANTY............................................................................................................10
DISPOSAL........................................................................................................................................10

3
INTRODUCTION
PLEASE READ THIS INSTRUCTION MANUAL
CAREFULLY BEFORE INSTALLING AND USING
YOUR MACHINE
The purpose of this manual, and enclosed documents, is to
transmit information necessary for the user to use this product
skillfully and safely. This manual provides information on safety,
installation, use, maintenance and disposal of this product. This
manual is addressed to the plant manager who must hand it out
to the personnel in charge of the installation, use and
maintenance of this machine. The manager must make sure the
information provided in this manual, and in the enclosed
documents, is read and fully understood before operating this
machine. This manual should be stored in a known place that is
easy to access by all personnel involved, and should be referred
to whenever any doubts arise.
This manual is an integral and essential part of the product; it
must be kept for the machine's entire service life and must go
with it in case it is transferred to a new user.
The time invested in adhering to these instructions will be amply
rewarded by the perfect working order and safety of the
machine. It is mandatory to comply with that which is outlined in
this manual.
The machines described in this manual are designed solely for
professional use in an industrial environment. They are not
intended for use at home or in public low-voltage power lines that
power buildings used for household purposes, as this can cause
radio frequency interference.
This machine should be used only with original accessories or
approved by the manufacturer.
Any changes, even though slight, are prohibited because they
may compromise machine safety, and shall void the machine's
EC certification.
The purpose of this machine consists in repair work at car body
shops using infrared heating to remove the panels glued to the
inside of a motor vehicle.
This machine is not suitable for production work.
CHIEF Automotive Technologies is not responsible for any injury
or damage to people, animals, property and to the Vulcan ADU
itself either caused by:
- failure to comply with all requirements of current safety
standards;
- wrong installation;
- improper or incorrect use of the Vulcan ADU;
- non-compliant use as compared to that specified in this
manual;
- lack of maintenance;
- changes or tampering, even slight, or any unauthorized
intervention;
- use of non-original or incompatible accessories or spare parts;
- total or partial failure to comply with instructions;
- special events.
The content of this manual is the property of CHIEF Automotive
Technologies and is protected by copyright. All rights reserved.
This manual may not be reproduced, even partially, for uses
other than to support the product, subject-matter of this manual,
without prior written permission.
SYMBOLS USED
The following symbols are used in this manual and on the
machine to: highlight potential hazards, indicate prohibitions and
requirements for safe product use and to identify machine parts.
WARNING! The information contained in this
section is of utmost importance. Read it
carefully.
WARNING! Part subject to heat.
WARNING! Fire hazard.
Personnel must wear safety goggles.
Personnel must wear safety gloves.
Personnel must read this instruction manual.
Do not wear magnetic stripe documents.
Do not dispose of electrical equipment with
household waste.

4
IDENTIFICATION OF THE MAIN PARTS OF THIS MACHINE
1 –Compressed air inlet line
2 –Chiller power cord connection
3 –CAN cable to connect calibrator and lamp controls
4 –Pressure gauge (to be set to 1 bar)
5 –Air outlet for lamp cooling
6 –Lamp power cord connection
7 –Generator power cord
8 –Generator
9 –IR-Lamp
10 –Trolley
11 –Chiller
12 –Water inlet/outlet
STANDARD ACCESSORIES
The machine comes with the following parts:
1 Generator ITEM CHH5402
1 Lamp ITEM CHH5408 and connecting cables.
OPTIONS
1 Trolley ITEM CHH5480.
1 Chiller ITEM CHH5480.
1 Vulcan ADU Instruction Manual.
1 Control Unit Instruction Manual.
TECHNICAL SPECIFICATIONS
Power supply (three-phase) U1N
f
V
Hz
400
50
400
60
230
50
230
60
Insulation class
F
F
F
F
IP rating
IP21
IP21
IP21
IP21
Chiller cooling system capacity
l
Generator weight
Chiller cooling
lbs
Kg
57
26
57
26
57
26
57
26
Lamp weight
Lamp art. CHH5408
lbs
Kg
7
3
7
3
7
3
7
3
CONNECTION DATA
Power cable
Length
Core section
m
mm2
10
6
10
6
10
6
10
6
Required distribution system
cables / extension cords
Total L <= 15 m
Total L = 30 m
mm2
mm2
6
10
6
10
6
10
6
10
Required line protection
Plug
Delayed fuses (aM)
A
A
32
32
32
32
32
32
32
32
Compressed air minimum pressure
for rated performance
p1min
bar
psi
3
43.5
Compressed air maximum pressure
p1max
bar
psi
9
130.5
Compressed air hose min. inside Ø
mm
8
Minimum compressed air flow
l/min
120
Environmental operating conditions
Temperature
Humidity (non-condensing)
°F
%/°F
%/°F
°C
%/°C
%/°C
5-104
50/107
90/68
5-40
50/40
90/20
5-104
50/107
90/68
5-40
50/40
90/20
5-104
50/107
90/68
5-40
50/40
90/20
5-104
50/107
90/68
5-40
50/40
90/20
EMISSION DATA
Airborne noise
Standard cooling
Heat exchanger
dB(A)
< 70
< 70
< 70
< 70

5
GENERAL DESCRIPTION
Infrared heating, microprocessor controlled, fully automatic
system, suitable for bodywork applications.
New Vulcan ADU control touch screen with user-friendly
graphics, to aid the operator in using this machine. Choose
between automatic and manual mode or according to
temperature profiles. USB interface to export data relating to
performed heating profiles.
This heating system's main features are:
1. Temperature management both in °C and °F.
2. USB interface to load the pre-parameterized profiles for
the automatic and temperature profile operating modes.
3. Firmware upgrade through USB.
4. Alarms buzzer.
5. Automatic recognition of the type of heating tool
connected to the machine.
SAFETY REQUIREMENTS
This paragraph contains important information
on how to use the product safely. Anyone using
this product must read and understand its
contents before using the machine. You must
follow what is indicated.
Use the Vulcan ADU in a place that meets the following
characteristics:
It must be used in a closed environment and may not be
used outdoors.
Ambient temperature between 41 and 104 °F and not higher
than 914 yard above sea level.
In a well-ventilated, dry area, free from dust, vapours, acid
fumes.
Not to be used in environments with explosive atmosphere or
fire risk.
In a well-lit room in relation to the work to be done.
Floor must be level, smooth and obstacle-free.
If you plan on using this machine for work that may generate
fumes, you should install a suitable suction system.
The polymerization of adhesives can generate fumes that can be
harmful if inhaled. Follow the directions provided by the material
manufacturers, so as to take the necessary protective measures.
In order to use this machine safely, it must first of all be installed
by qualified personnel, complying with all the instructions
provided in the "INSTALLATION" chapter.
Experienced personnel should carry out the job. The machine
should be adjusted solely by personnel authorized to do so.
Since machine adjustments affect operational safety, whoever
performs said adjustments must possess the required skill.
Carefully follow the instructions provided in the "WORK"
paragraph.
It is forbidden for more than one person to work on this
machine at a time. Prohibit access to the work area to anyone
who is not authorized to operate this machine.
While working with this machine, use
tinted glasses to reduce glare due to
light reflection on heated parts. Wear
work gloves or use special tools when
handling heated sheets to avoid getting burnt.
Some parts of the machine (heating tools) may get
excessively hot if the machine is used at a too-fast
work pace. Carefully analyze work conditions and
use appropriate personal protective equipment
(such as gloves, aprons and other PPE clothing).
The sheets on which work is performed reach high
temperatures in the heated area. Make sure there
are no flammable materials in contact with or
close to the sheets on which you have to work as
they could ignite during the process. Always wear suitable
protective gloves to avoid getting burnt.
Your gloves should always be dry and in good condition.
Keep the area surrounding the machine free of
flammable materials. In case of fire do not use water
but do use adequate fire extinguishers.
Do not cover the machine's air grids. Insufficient
ventilation could cause excessive temperature and trigger a fire.
Do not pull the machine's cables when moving it around. Do not
pull its cord to remove the plug from the socket. Keep cords
away from heat, oil and sharp edges. If you damage the power
cord while working, unplug the power plug immediately. Do not
use the machine if the power cord is damaged.
Machine maintenance should be carried out by carefully
following the safety instructions provided in the
"MAINTENANCE" chapter. In particular, be sure to power off
the machine before carrying out maintenance in the heating
tool.

6
The machine's cooling liquid contains ethylene glycol which is
harmful if swallowed and can cause redness and irritation if it
comes into contact with your eyes. Be careful when replacing
arms and electrodes.
If this machine comes into contact with water that penetrates into
its inner parts, power off the machine immediately and unplug
the power plug. Follow this same procedure whenever there is
any situation where there may be a risk of electric shock. After
an emergency, the machine may be restarted solely by trained
personnel who know which checks must be performed on the
machine.
In addition to the information provided in this paragraph, always
keep in mind the relevant prevailing regulations.
INSTALLATION
Firstly, make sure the place in which the machine is used
complies with the specifications outlined in the "SAFETY
RULES" paragraph.
On receiving the Vulcan ADU, check that the outside of the
packing is intact, otherwise report any anomalies to the person in
charge. Any damage to the packing should give rise to doubts as
far as what condition its contents might be in.
In order to handle the packing, use only a forklift or a transpallet,
paying attention to its weight and other handling instructions
reported on it.
Remove the packing and visually inspect machine integrity.
Ensure the machine has all the accessories that come with it
(page 4) as well as the optional items indicated in the compiled
and signed check-list (page 20). Promptly report any missing
parts to the supplier.
Use a suitable lifting device and straps to unload the machine
from the pallet.
All the material that makes up the packing should be disposed of
in full compliance with current environmental protection
regulations.
ASSEMBLY
Refer to the following instructions and directions shown in Fig. 2
(page 15) to assemble parts that are supplied disassembled.
If you purchased only the generator Item CHH5402, with lamp
included, be sure to have performed the following steps:
1. Connect the machine from an electric standpoint:
a. Connect the lamp power supply through the
appropriate ilme connector.
b. Connect the chiller power supply to the
generator.
c. Connect the CAN cable to the lamp's control
and also, where applicable, to the optional
calibrator through a "T" connection.
2. Connect the machine from a pneumatic standpoint;
3. Connect the machine from a hydraulic standpoint.
If you also purchased the chiller art. Item CHH5480, repeat steps
from 1 to 3 using the chiller in question.
If you also purchased the trolley Item CHH5404, place the chiller
and the generator above it and repeat steps from 1 to 3.
COOLING SYSTEM
In order to cool the machine adequately, it is equipped with a
chiller that maintains the water in the cooling circuit at a
temperature of 68°F. This machine cannot be used if connected
to a heat exchanger.
Fill the tank using only a mixture of water and antifreeze liquid for
car radiators. The antifreeze liquid is necessary for its anti-
corrosive properties.
Use only antifreeze liquid similar to that supplied: ethylene
glycol-based, in a concentration of about 50%, with the addition
of corrosion inhibitors.
Mix the antifreeze liquid with water in a range of 10 to 20%.
Use a higher percentage if you need to prevent the liquid from
freezing when the machine is kept in cold environments. Keep in
mind that this reduces machine performance, since increasing
glycol percentage decreases cooling efficiency.
Follow the antifreeze liquid manufacturer's instructions to
determine the amount to be used, in relation to the desired
freezing temperature. The table below shows an example for the
antifreeze liquid supplied (50% of glycol).
Freezing temperature
Percentage of antifreeze
liquid with 50% of glycol
0 °C / 32 °F
0 %
-2 °C / 28 °F
8 %
-5 °C / 23 °F
18 %
-10 °C / 14 °F
36 %
-15 °C / 5 °F
54 %
-20 °C / -4 °F
68 %
When filling and/or topping up the coolant, always be sure to use
perfectly clean liquids and containers.
ELECTRIC INSTALLATION
The installation should be carried out by
qualified personnel, aware of safety rules, who
closely adhere to the directions contained in this
manual.
The machines described in this manual are designed solely for
professional use in an industrial environment.
WARNING: the machines in question are not intended for use in
public low-voltage power lines that power buildings used for
household purposes. This can cause radio frequency
interference.
Before connecting the machine to the line, check that the mains
voltage matches that indicated on the plate. This machine was
built to be used solely at the supply voltage indicated on the
plate and is not set-up to be adjusted to other supply voltages.
Install a plug on the power cord; its required flow rate is indicated
in the technical specifications table (page 4). Figure 2 (page 13)
shows some connection examples,
It is mandatory to connect the machine to the ground wire.
Ensure the system's protective conductor is efficient and
complies with current regulations.
The technical features table (page 4) outlines supply line
requirements.
Do not use extension leads but if strictly necessary they should
be as short as possible and have a core section appropriate to
their length (indicated in the technical features table on page 4).
This machine is not designed to be powered by electricity
generating units. Using a unit of that type should be carefully
evaluated to avoid the presence of surges that could damage the
machine.

7
WORK
PRELIMINARY CHECKS
Make sure the floor is level, smooth and obstacle-free. While
moving this machine, any obstacles on the floor could cause the
wheels to lock and overturn the machine.
Check that the machine is not exposed to water splashes or
penetration of liquids, dirt, metal filings, etc.
Check that the cables do not get in people's way and do not
cause danger or risk of being damaged.
Check the machine's condition each time before using it and
also that of the power cable and plug; do not use the machine if
you notice any defects.
Before connecting the plug and turning on the machine,
check that all safety requirements have been met.
Connect the plug only to a socket having characteristics that
correspond to the specifications provided (capacity and sizing of
the protective devices indicated in the specifications table) and
equipped with a protective conductor (ground wire).
PROGRAMMING
You can work in the following three ways:
- The manual mode is used when you have to heat a part by
supplying heat in a constant manner to it, without the control
unit having any limits on the temperature that the heated piece
can reach.
- The automatic mode is used when you have to heat a part at
a user-defined temperature and you want to prevent the
temperature of the heated object from exceeding the set value,
even in case of prolonged exposure to infrared radiation. The
Vulcan ADU will modulate power so that the object to be
heated will not exceed the temperature set on the control unit.
- The profile mode generates a temperature profile that varies
over time and contains 5 different temperature values at the
most. Heating that varies according to a thermal profile is
useful to reduce paint drying time or the polymerization time of
structural adhesives. Drying or adhesive polymerization
operations are performed in this work mode.
The programming instructions are included in the control unit
manual.
AUTOMATIC mode
Allows the user to access the Vulcan ADU automatic work mode.
This mode is used when a part needs to be heated at a
temperature defined by the user and when the user wants to
prevent the temperature of the heated object from exceeding the
set value, even in case of prolonged exposure to infrared
radiation. The Vulcan ADU will modulate power so that the object
to be heated will not exceed the temperature set on the control
unit.
MANUAL mode
Allows the user to access the Vulcan ADU manual work mode.
This mode is used when a part needs to be heated through
constant heat without the control unit having any limits on the
temperature that the heated part can attain.
TEMPERATURE PROFILES mode
Allows the user to access the Vulcan ADU profile work mode.
This mode allows the generating of a temperature profile that
varies over time and that features up to 5 different temperature
values. Heating, according to a variable thermal profile, is useful
to reduce paint drying time or polymerization time of structural
adhesives.

8
PROCESS
Strictly respect all safety requirements when working.
Refer to the control unit manual for the operating information.
If necessary, calibrate the lamp's temperature sensor by placing
the calibrator on the surface to be processed, press the
calibration start key (22) and wait until the screen displays that
control unit calibration is finished. Refer to the control unit
manual for any further relevant information.
Place the lamp on the surface to be processed. Heating starts by
pressing the start trigger (25). You can see operating
temperature and power applied to the lamp on the control unit
monitor. Refer to the control unit manual for any further relevant
information.
Once the surface process is over, you can terminate the heating
procedure in the ways described in the control unit manual.
If any problems occur, an appropriate error message will be
displayed on the screen.
At the end of the process, the display shows the temperature
values reached by the surface to be heated and the power and
set point temperature used.
To avoid performing low-quality work, it is advisable to adhere to
the following recommendations:
The glass of the lamp must always be clean;
When the process is finished, power off the machine, unplug the
electrical plug and shut off the compressed air supply. Store the
machine in a dry, protected place. Before powering off the
machine and unplugging the plug, wait until the system properly
cools down the lamp; wait until the message clears from the
control unit (approximately 5 minutes after using it the last time).
IR-LAMP AND CALIBRATOR
20 Temperature sensor
21 Calibrator interface
22 Calibrator start button
23 Calibration done
24 Handgrip
25 Control trigger to start the heating process
DESCRIPTION
The cables that connect the heating tool to the machine are very
light and flexible, ensuring good tool handling during the heating
stages.
The heating tool has an anatomic grip (24) that houses the start
control trigger (31).
The start triggers begins the heating stage.

9
MAINTENANCE
The following maintenance operations are to be performed
solely by trained personnel, able to perform the specified
operations safely. When possible, the machine should be
powered off, the power cord unplugged and the compressed
air supply disconnected.
Warning! After powering off the machine, some of its inner parts
remain live for several minutes (power capacitors). Wait at least
5 minutes before performing maintenance inside the Vulcan
ADU.
ORDINARY MAINTENANCE
GENERAL INFORMATION
Check the cleanliness of the heating tool's contact surfaces. If
necessary, clean it with a soft cloth.
Check the cleanliness of the infrared lamp glass and, if
necessary, clean it with isopropyl alcohol and a soft cloth.
Keep the machine clean. Do not use water jets to clean the
machine as they could penetrate inside. Also avoid using
strong solvents, thinners or gasoline that could damage the
paint or the machine's plastic parts.
Clean the control unit's screen using a dry soft cloth; do not
use water, solvents, alcohol or abrasive cloths. Limit the
exposure of the control panel to direct sunlight.
ELECTRICAL CIRCUIT
You should frequently check the condition of the power cord,
the plug and the heating tool connecting cables. Replace the
power cord if you notice any cracks, cuts, scrapes, etc.
Make sure the machine is connected to the protective
conductor and that the ground wire, both inside the power cord
and the heating tool connecting cable, is not interrupted.
Periodically check the ground efficiency of the system.
COOLING CIRCUIT
Keep the water level in the chiller within the “normal” water
level.
Clean the chiller heat exchanger, Item CHH5480, using
compressed air, on a regular basis.
Check that slag/waste of any kind does not deposit inside the
tank and hoses, otherwise remove and wash properly.
WARNING: do not keep the machine in places where the
coolant could FREEZE.
If you have to store the machine in a place where the aforesaid
risk subsists, be sure to use an appropriate amount of antifreeze
otherwise empty the cooling circuit completely.
EXTRAORDINARY MAINTENANCE
Only specialized technicians are allowed to perform
interventions inside the machine.
The machine is equipped with a thermostatic safety device. If it
overheats, the following message is displayed:
TEMP
Do not power off the machine but let it cool down. This message
clears automatically once the machine has cooled.
The control unit's internal memory is powered by a lithium battery
type CR2032. Replace the battery in case of a memory
malfunction. Perform the replacement after unplugging the
power cord and be sure to use only a similar battery.

10
REPLACING THE QUARTZ GLASS LAMP
1. Refer to the assembly figure on page 17.
2. Power off the machine and electrically disconnect it
from the mains as a precaution.
3. Wait until the lamp is cold before continuing.
4. Disconnect the lamp from the generator by
disconnecting the ilme supply connector and the CAN
communication cable.
5. Remove the two no. 5 Allen screws of latch no. 9.
6. Remove latch no. 9.
7. Slide out the lamp's quartz glass (11) paying attention
not to touch it with your fingers; use gloves or a soft
cloth for this operation.
8. Fit the new quartz glass (11) paying attention not to
touch it with your hands.
9. Use isopropyl alcohol to clean the glass (11) in case
you touched it with your hands.
10. Refit latch no. 9.
11. Refit the two no. 5 Allen screws of latch no. 9.
12. Reconnect the lamp to the generator, connecting the
ilme supply connector and the CAN communication
cable.
REPLACING THE IR-LAMP
1. Refer to the assembly figure on page 17.
2. Power off the machine and electrically disconnect it
from the mains as a precaution.
3. Wait until the lamp is cold before continuing.
4. Disconnect the lamp from the generator by
disconnecting the ilme supply connector and the CAN
communication cable.
5. Open the two covers (10), located on the lamp's right-
hand and left-hand sides, proceeding with one cover at
a time as follows:
a. Place the lamp on one cover (on the side).
b. Remove the screws marked by numbers 1-2-3-
4.
c. Remove the cover (10).
d. Place the lamp on the opposite side.
e. Remove the screws marked by numbers 1-2-3-
4.
f. Remove the cover (10).
6. Remove the two no. 5 Allen screws of latch no. 9.
7. Remove latch no. 9.
8. Slide out the lamp's quartz glass (11) paying attention
not to touch it with your fingers; use gloves or a soft
cloth for this operation.
9. Remove the two no. 5 Allen screws that support latch
no. 8 which holds the infrared bulbs in place.
10. Slide out the electrical connection cables, of the
infrared lamp to be replaced, from the specific
connector no. 7.
11. Replace the damaged infrared lamp (6) paying attention
not to touch it with your fingers. Since the bulb should
not be touched with your fingers, used clean gloves
during this operation, but if you mistakenly touch the
lamps before installing them, be sure to clean them
using isopropyl alcohol.
12. Reconnect the electrical connection cables of the
infrared lamp by shortening them as required.
13. Refit the latch no. 8.
14. Refit the two no. 5 Allen screws of latch no. 8.
15. Refit the quartz glass (11) paying attention not to touch
it with your hands.
16. Refit the latch no. 9.
17. Refit the two no. 5 Allen screws of latch no. 9.
18. Close one lamp cover and refit the screws marked by
numbers 1-2-3-4.
19. Place the lamp on the side of the cover (10) that was
just mounted.
20. Close the cover (10) over the lamp and refit the screws
marked by numbers 1-2-3-4.
21. Reconnect the lamp to the generator, by connecting the
ilme supply connector and the CAN cable.
SERVICE AND WARRANTY
Contact your distributor either to order spare parts or for repairs.
To know the warranty conditions, see the general terms of sale
on the www.chiefautomotive.com website.
DISPOSAL
All the materials that make up the packing must be disposed of
in full compliance with the regulations in force on environmental
protection.
The control unit contains a lithium battery that must be replaced
on a regular basis. Do not dispose of that battery in your general
household waste and do not throw it in fire or water. Keep out of
each of children. You should collect and dispose of batteries
correctly, respecting the environment and local regulations.
The coolant must be disposed of in accordance with local
regulations.
Only for Countries belonging to the EC:
In accordance with that stipulated by European
Directive 2012/19/EU on Waste Electrical and
Electronic Equipment (WEEE), the presence of
this symbol means that the product should not be
disposed of as municipal waste. It must be
collected separately. The user is responsible for the proper
disposal of the product by contacting his/her relevant local
authority or local dealers. You will incur in sanctions if you
unlawfully dispose of this type of waste.
Correct disposal will help maximize recovery, recycling and
reuse of materials while minimizing potential adverse effects on
the environment and health.

11
TECHNICAL DOCUMENTATION
DRAWINGS AND TABLES
Fig. 1 Dimensions

12

13

14

15
Fig. 2 Trolley assembly

16
Fig. 3Replacing the glass and/or lamp

17
Fig. 4 Control unit assembly

18

19
Fig. 4Wiring Diagram

20