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OPERATOR’S MANUAL
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
STAINLESS STEEL FLUID HEATER
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
651747-2-M
RELEASED: 4-1-03
REVISED: 1-24-11
(REV. E)
FLUID HEATER DATA
Models 651747-2-M.......................
Wetted Parts Material Stainless Steel............
Vol ts AC 220......................
Amperes 8.3......................
Watts 2000.........................
Accuracy ±1.9_ C(3-1/2_ F)......................
Temperature Rise Above Ambient 38_ C (100_ F)...
Recovery Rate per Hour 56.8 liters (15 gallons)..........
Maximum Working Pressure 35 MPa (5000 p.s.i.).......
Maximum Temperature Range 16 - 121_ C (60 - 250_ F)......
Surface Temperature Code T3 (200_ C / 392_ F)........
Fluid Passage Diameter 9.4 mm (0.370”)...........
Fluid Passage Length 232.9 cm (91.7”)............
Fluid Passage Volume 0.162 lit. (9.86 in.
3
)............
Inlet / Outlet Port Size (female) 1/2 - 14 N.P.T.F. - 1.....
Weight 8.2kg(18lbs)........................
Environment Approval Group II 2 G Ex dII B T3............
CENELEC Standard
EN 60079-0 & EN 670079-1..............
Notified Body Certification TRL04ATEX11052........
GENERAL DESCRIPTION
The Arostainless steelfluid heatermodels are wired for 220 volt ACapplications. The heating element is a 2000 watt cartridge type and is thermostatically controlled. The wiring, heating element and thermostat are
protected by a preset heat limiter.
The thermostat is adjustable up to approximately 121_ C (250_ F). The
heater is off when the thermostat knob is turned counterclockwise as far
as possible. The heater will not switch on until the knob is rotated to at
least ambient room temperature.
Fluid heaters have been tested in water soluble oil. Some of this fluid
may be left within the heater, therefore flush out this fluid with a solvent
compatible with the material to be pumped.
• This unit utilizes an explosion-proof electrical section and internally
spiraling material section. The material enters the base under line
pressure from the pump and is heated and delivered thru to the material outlet at the top.
• Twoor more paint heaters may be coupled together by plumbing the
material outlet of the first heater to the material inlet of the next, etc.
However,the distance of piping run between the units should be limited to no more than three feet (see figure 4, page 4).
TYPICAL INSTALLATION
The heater inlet and outlet should be plumbed (up flow) as shown (see
figure 4, page 4), to minimize chances of trapped air inside the heater. If
the inlet and outlet are reversed (down flow), the temperature rise will be
different.
DIMENSIONAL DATA
651747-2-M FLUID HEATER
7-1/2”
(190.5 mm)
4-3/16”
3/4 - 14 N.P.T.F.
Mounting holes (hidden)
Thermometer - Do not overtighten. For orientation only.
1/2 - 14 N.P.T.F.
(Outlet)
8-13/16”
(223.8 mm)
0891
3-3/4”
(95.3 mm)
4-3/4”
(120.7 mm)
(105.6 mm)
16-1/16”
(408.0 mm)
1/2 - 14 N.P.T.F. (Inlet)
Figure 1
OPERATING PRECAUTIONS
Heed all warnings.
•
WARNING
WARNING
this equipment could result in serious injury. The possibility of
injection into the flesh is a potential hazard. Never allow any
part of the human body to come in front of, or in direct contact
with, the material outlet. An injection injury can be serious. If
injection should occur, contact a qualified physician for immediate treatment.
CAUTION
during flushing operation.
CAUTION
sure compatible pressure rating and longest service life.
CAUTION
Do not exceed 35 MPa (5000 p.s.i.) maximum.
HIGH PRESSURE DEVICE. Improper usage of
Electrical supply power to the heater must be off
Use only genuine Aro replacement parts to as-
Do not remove cover when energized.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276
www.ingersollrandproducts.com
FAX(800) 892-6276
© 2010 CCN 15200561
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POWER SUPPLY AND INSTALLATION
MAINTENANCE
Do not use neutral as earth ground. A single phase power / earth
ground is required. If this is not available, use a transformer to obtain
single phase power.
Provisions should be made for a quick disconnect or shut-off of all electrical power to this unit.
All wiring must comply with all local and / or national electrical codes.
• Electrical codes that apply must be strictly adhered to. Failure to do
so may lead to shock hazard or serious injury.
• Some local electrical codes may require the installation of rigid con-
duit.
• The installer of this system assumes full responsibility for com-
pliance with these codes.
• Aro is not responsible for accidents resulting from improper installa-
tion of components or hardware.
• No electrical power should be in the system at the time the cover is
removed.
AIR AND LUBE REQUIREMENTS
Commonly used solvents and their lowest boiling points as pertains to
the Aro free flow system:
Hydrocarbons (Petroleum Naphthas)
VM & P 244 (118)
Mineral Spirits 314 (157)
Odorless Mineral Spirits 353 (178)
Aromatics (Terpenes)
Benzene 172 (78)
Toluene 230 (110)
Xylene 281 (138)
Gum Turpentine 311(155)
Dipentene 347 (175)
Alcohols
Methanol 147 (64)
Isobutyl Alcohol 223 (106)
Nybutyl Alcohol 241 (116)
Keytones
MEK 174 (79)
Acetone 122 (50)
Diacetone 284 (140)
k International Critical Tables (ref.)
Boiling Point _ F(_ C) k
NOTE: The (26) fluid track is a cast assembly and cannot be disassembled for cleaning. Do not allow material to solidify inside the
heater. Flush the paint heater with the proper solvent immediately following each use.
CAUTION
surefrom the system before servicing any part of the fluid heater system.
CLEANING
1. When cleaning the fluid heater, use only solvents compatible with
the material being pumped.
2. The fluid heater should be flushed with solvent when changing medias, or when it is not being used for a period of time.
NOTE: For other maintenance problems, see “Trouble Shooting”, page
4.
Shut the electrical supply off and relieve all pres-
DISASSEMBLY
NOTE: The following procedure is for the repair of the (27) heater cartridge assembly or (24) thermostat.
1. Relieve all fluid pressure in the system.
2. Rotate the (19) adjusting knob counterclockwise to the “off” position.
3. Disconnect the power supply to the fluid heater assembly.
4. Disconnect the fluid lines.
5. Remove the six (2) cap screws.
6. Remove the (16) cover.
7. Remove the two (10) machine screws and (11) lockwashers from
the (15) housing, which retain the thermostat assembly.
8. Remove (as one unit) the (8) terminal block, (24) thermostat and (9)
mounting plate by carefully lifting it out and removing the power lead
wires (1 and 3) from the first two positions on the (8) terminal block
(refer to figure 3).
9. Remove the (27) heater cartridge assembly leads from the (8) terminal block third and fourth positions.
10. Carefully finish removing the assembly by pulling the thermostat
capillary tube out of the (26) fluid track body.
NOTE: Special care must be taken not to sharply bend or kink the capillary tube which will ruin the thermostat. Do not use pliers or other tools
which may also damage the tube.
HEATER CARTRIDGE REMOVAL
OPERATING INSTRUCTIONS
START-UP PROCEDURE
1. Fill the system with fluid.
2. Circulate the fluid thru the system.
CAUTION
vent in the system. Solvents can expand if there is no circulation,causing excessive and hazardous pressure in the system.
3. Turn the power on.
4. Set the thermostat just below the boiling point of the lowest boiling
solvent in the coating material (see table above).
5. Allow fluid to circulate thru the heater for 5 - 10 minutes.
6. Readjust the thermostat as necessary.
To adjust t he temperature, turn the knob:
SHUTTING THE SYSTEM OFF
1. Allow the fluid to circulate for 5 - 10 minutes after shutting the heater
off, to cool the system.
2. Always leave the solvent or fluid in the heater.
Page2of4
Power should never be on when there is only sol-
a. Clockwise -- higher temperature
b. Counterclockwise -- lower temperature
1. Pull the (27) heater cartridge assembly from the (26) fluid track.
NOTE: If the (27) heater cartridge assembly does not easily come
out, do the following:
a. Remove the (28) pipe plug from the bottom of the (26) fluid
track.
b. Carefully drive the (27) heater cartridge assembly out thru
the top of the heater (toward the cover).
REASSEMBLY
1. Reassembly is done in the reverse order.
NOTE: When reinstalling the (16) cover, be certain the (19) adjusting
knob is turned out.
2. Rotate the adjusting knob clockwise out as far as it will go and turn it
back in carefully to align the slots with the thermostat.
651747-2-M