Dometic 750000005 (TJ18F) Refrigerator User Manual

Freightliner Refrigerator
Troubleshooting Guide
For
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Before initiating troubleshooting, the following equipment is recommended:
Multimeter, 20 gauge (min) wires to use as jumpers, and 12Vdc source.
Before applying power, stand unit upright for a minimum of 1 hour to allow compressor oil
to settle.
NOTE: Although, Dometic states on the packaging to always keep unit
upright, we cannot control how the carrier handles our boxes. This also
applies if the unit has been set on its side to affix any accessories.
If there are any questions, please contact our warranty and service department at 1-800-2348778 or 804-764-1313.
Load dump
including
Power Input
Danfoss
Module
Cap Tube
(Expansion Device)
Condenser Coil
Refrigerator Components
Speed Resistor
Compressor
Condenser
Cooling Fan
Strainer
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Locating the Dataplate
There are two Dataplates bearing the model number, serial number and technical data. One
is located on the right-side panel inside the appliance (fig. 1) and the other is located on the
back of the unit (fig 2).
Figure 1
Figure 2
The first three digits of the serial number indicate the Year and Week of manufacture.
Example: the Dataplate above has a serial number of 71305899
7=Year 2007
13=13th week of the year
05899=Sequential Unit Number
TROUBLE-SHOOTING
The guidelines are arranged sequentially and should be followed in order until the problem
is solved. Start with “General Trouble-Shooting” sections A and B; then, go to “Specific
Trouble-shooting of Electrical Components”, start with section A and work systematically
to section D.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 2 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
General Trouble-Shooting
A: Appliance Does Not Operate. Check:
1. The thermostat knob is “ON”, and turned, at least, half way.
2. The electrical system circuit breaker for the refrigerator is “ON”.
3. The fuse between the Danfoss Module electronic control unit and the power source
is good.
4. The power supply cable is not faulty, loose or poorly connected.
5. The voltage on the Load Dump module corresponds to that of the battery. If there is
a voltage drop of 0.2-0.4v check:
Positive Lead
from
Multimeter
Negative lead
from
multimeter
A. The size of the cable connecting the battery to the Load Dump module
corresponds to specifications (see electrical wiring guidelines in this
manual).
B. All connection points in the power circuit are properly tightened and
secure.
C. There are no signs of oxidation on the battery poles or contact points
and the battery is properly maintained.
6. Insure the LOAD DUMP module is installed properly on the Danfoss Module. The
three pins on the LOAD DUMP module must “line up” with the top three pins of the
Danfoss Module.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 3 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
LOAD DUMP
Module
DANFOSS
Module
7. The battery is delivering sufficient power. If the power voltage is less than
10.4VDC, the unit will not operate. Check incoming voltage with multimeter by
putting the black lead on the negative terminal of the LOAD DUMP module and the
red lead on the positive terminal as shown. Unit must be running to check this
function.
Negative lead
from
multimeter
Positive Lead
from
Multimeter
8. If 12 volts are available to the unit as shown in step 7, check to see if the LOAD
DUMP module is defective. This module is used as a surge protector for the unit.
Removed the module from the unit and remove all wires. Wire the Danfoss module
as shown with the wires that were on the LOAD DUMP module.
See Wiring
Diagram in the
later sections
LOAD DUMP
Module
DANFOSS
Module
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 4 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
The LOAD DUMP module is defective if the unit operates while wired to the
DANFOSS module. Replace Load Dump module.
9. If LOAD DUMP module is working properly, check the speed resistor. This
component is used to control the speed of the compressor and is located on the “T”
terminal of the DANFOSS module.
Speed Resistor
Turn off power and disconnect the speed resistor from the Danfoss module.
Remove the speed resistor from the blue wire and connect the blue wire on the
Danfoss module terminal “T” where the speed resistor was removed.
Connect power (12volts) back to the unit. If the unit performs, the speed resistor is
faulty. Replace Speed Resistor.
10. Test the Thermostat Circuit. Remove the blue wire that is connected on terminal
“C” and remove the (black) Speed resistor (attached to the other blue wire)
connected to terminal “T” of the Danfoss module. These two wires represent the
thermostat circuit.
Blue Wire from
thermostat
Speed Resistor connected to
other blue wire from
thermostat
Make sure the thermostat knob is turned on, remove the speed resistor, set
multimeter to check continuity and connect meter leads to these wires as shown.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 5 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Thermostat knob
lead connections
If the thermostat is working correctly, the multimeter should indicate continuity.
In addition, check the speed resistor with the multimeter. This resistor is used to set
the compressor motor speed. Connect multimeter leads to either end of resistor
assembly and set meter to resistance, Ω. This is a 277-ohm resistor. It should read
between 265 and 280 ohms.
11. An additional test to use if a multimeter is not available:
Turn the unit off and disconnect both blue wires that were connected to the Danfoss
module terminals “T” and “C”. Place the jumper wire across these terminals as
illustrated.
Energize unit and if unit operates, this action indicates the problem may be a bad
thermostat. Replace thermostat.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 6 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Change DanFoss Module. Isolate unit from its source of energy by disconnecting the
power before performing the following procedure:
A. Remove all wires from compressor module and load dump (make note where
they are connected).
B. Removed Danfoss module from the compressor by removing the mounting screw
and twisting the module to the rear to disconnect it from the compressor.
C. Use screw driver to pry connector from compressor terminals. Use caution.
D. If changing the Danfoss module does not fix the problem, this may indicate the
compressor is bad.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 7 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
B: Insufficient Refrigerating Capacity. Check:
1. The door is sealed properly and the refrigerator is not positioned close to heat
sources.
2. Ice build up in and on freezer compartment. 1/8” maximum. Defrost Freezer by
turning power off and let ice melt. Do not chip ice off freezer compartment
because freezer plate can be damaged.
3. The refrigerator is sufficiently ventilated.
4. Dust has not blocked the condenser ventilation sources.
5. The Condenser Cooling Fan rotates freely.
6. The compressor and fan are operating properly. The compressor is very quiet
during operation so it may be difficult to ascertain if it is running. A metal tube
or a screw driver, position on the compressor and your ear, may help you hear
the compressor motor when energized. If fan is running but the compressor
kicks on and off, or the compressor is not running, change the Danfoss module
(see Section A #12). If problem persists, it may indicate the compressor is bad
or a refrigerant leak.
7. The inside temperature needs to be around 34F to 40F. If the temperature starts
in this range but increases over time, put the refrigerator on a test bench, start it,
let it run for an hour and check the Cap Tube/ Strainer Assembly located in the
back of the unit. Look for condensation and/or ice accumulations as illustrated
in the following pictures:
Ice accumulation around the cap
tube usually indicates blockage.
Water condensation around strainer
usually indicates moisture in the system.
If condensate or ice accumulates in these areas, replace unit.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 8 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Specific Trouble-Shooting of
Electrical Components
A: Check incoming voltage
1. Hold multimeter leads to the positive (+) and negative (-) terminals of the load dump
module. The red lead from the multimeter is held to the “+” terminal and black lead
from the multimeter is held to the “-“ terminal. You should read positive voltage. If
the reading is negative, check DC polarity. If it is reversed, correct wire
connections.
2. The inrush current must not drop the voltage more than 3% or .36 volts when the
compressor is initially energized. Monitor this voltage by using a multimeter at
start-up. For 12vdc system, the cutout is around 10.4 volts and the cut-in is 11.7
volts. If there is a drop in current, at start-up, below the cut out voltage, then the
compressor will not operate. A drop in voltage will occur if the wire size is too
small or poor connection.
3. Verify that voltage at unit is equal to voltage at source. If the voltage is less than at
the source then the wire used from source to unit is too small.
B. Checking the Compressor
1. Remove all wires from compressor module (make note where they are connected).
2. Removed Danfoss module from the compressor by removing the mounting screw
and twisting the module to the rear to disconnect it from the compressor. See
Section A #12 in “General Troubleshooting” Section.
3. Compressor windings can be checked for defects by measuring the resistance on the
current lead-in pins. If the measured values between all pins are approximately the
same (approximately 2.2-2.5 ohms). The compressor motor is OK.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 9 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Compressor terminals
(Current lead-in pins)
4. Check each pin (motor winding) for continuity to ground. A multimeter can be used
in some cases but an insulation tester by “Meggar” should be used. If there is any
continuity to ground then the compressor is internally shorted and will need to be
replaced. This is not a field operation.
5. If a problem is not found in the compressor then the Danfoss module needs to be
replaced.
C. Checking the Fan
1. The Condenser Cooling Fan should come on after a five second delay once the
compressor starts.
2. Visually inspect fan for any blockages and make sure that it can turn freely.
3. If the fan can spin freely and is not working then first check the fan terminals “+”
(the lower of the two “+” symbols) and “F” on the module for voltage. The reading
should be approximately 12 volts.
Condenser fan
terminals
(Current lead-in pins)
4. If there is voltage at the module terminals then remove the fan wires from the
module and check for continuity through the fan itself by placing meter leads in each
fan wire push-on terminal. If there is no continuity through the fan then replace it.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 10 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
D. The Refrigerant Circuit
1. If the refrigerator seems to be running properly and passes all of the above tests and
there is no cooling in the unit then the problem may be a refrigerant leak.
2. Do not attempt to charge unit in field. Contact your service dealer or Dometic
Corporation at 804-764-1313 or 1-800-234-8778. Ask for the service department.
ELECTRICAL CONNECTION
Before connecting the appliance to the power supply, check that the line voltage
corresponds to the indications on the appliance rating plate and those of the compressor
plate. This appliance complies with the EC directive 89/336 governing radio suppression.
DC Wiring
For Direct Current (DC) refrigerators, connect the appliance to the DC distribution center.
A circuit breaker of 15 Amps (maximum) must be used if the system is 12VDC. Make sure
that proper polarity is maintained at all times. Check that all grounding systems are in good
working order. The appliance must be wired and grounded in accordance with the
Electrical Wiring Guidelines in this manual.
DANFOSS Compressor Data
Voltage Range
12V systems: From 10.4V to 17V
The electrical unit will calibrate automatically to the applied voltage. This means that if the
battery voltage is less than 17V, the electronic unit assumes that it is working in a 12V
system. If the voltage is higher than 17V, the electronic unit assumes that it is working in a
24V system. However, the compressor does not run at power supply voltages between 17V
and 22.8V, the desired battery protection cut-out voltage for 24V systems.
Protection Systems
The Danfoss compressor protection system facilitates protection against compressor
overload and start failure, fan overload and electronic unit overheating as well as destructive
battery discharge. When an overload protection is activated, the compressor enters a cycle
in which it makes start attempts at approximately 60 second intervals until a successful start
is achieved.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 11 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
Overload Protections
The compressor overload and start protection cuts off power to the compressor if the
compressor speed drops below approximately 1,900 rpm, or if this motor speed is not
reached during the start sequence. Possible reasons for overload protection activating could
be too high refrigeration system pressures during operation or lack of pressure equalizing at
start.
The fan overload protection stops the compressor if the fan current exceeds 0.5 A (avg) or 1
A (peak).
An overheating of the electronic unit heat sink will cause the compressor to stop. Restart
will occur automatically when a normal temperature has been reached. If a fan is installed,
it will continue to run when the compressor stops due to overload or electronic unit
overheating.
Voltage Protection
If a voltage outside any concerned range is applied to the electonic unit, the compressor
does not start, or it stops if the voltage limit is exceeded during operation. The compressor
will restart automatically approximately 1 minute after the supply voltage has reached the
reset voltage within the range in question.
Battery protection
The Danfoss electronic unit provides protection as follows:
Standared Battery Protection Settings
12V cut-out
10.4
12V cut-in
11.7
Final Installation Notes
For all appliances, AVOID the use of any electrical adapters or extension cords.
After installation, allow the appliance to sit for at least one hour before starting.
The manufacturer assumes no responsibility for any injuries or damage caused by
noncompliance with any of the installation regulations.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 12 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 13 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 14 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
This drawing illustrates model TJ18F. It is to be used only as a reference for
model TJ18FP3.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 15 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
ID
Service Part
Description
4
3311370.000
THERMOSTAT KIT
14
3310735.000
KIT, WARNING DECAL
100
3311359.000
TRAY KIT
101
3311360.000
FAN KIT
103
3311363.000
RETAINER KIT
107
3311451.000
FRAME KIT, TJ18F
109
3311368.000
MODULE KIT, DANFOSS
110
3311369.000
RESISTOR KIT
112
3311371.000
HOUSING KIT, THERMOSTAT
113
3311373.000
LIGHT KIT
116
3311377.000
SHELF KIT
117
3311380.000
HINGE KIT
119
3311462.000
GUIDE KIT, DOOR TRUCK
121
3311443.000
DOOR KIT, TJ18 TRUCK
123
3311468.000
PANEL KIT, TJ18
124
3311361.000
SHELF KIT, WIRE
125
3311364.000
DOOR KIT, FREEZER
126
3311366.000
PAN KIT, DRAIN
127
3311465.000
LOAD DUMP KIT
128
3311376.000
SHELF KIT
129
3311466.000
LATCH KIT
130
3311467.000
LATCH KIT
135
3312372.000
HARNESS KIT, FREIGHTLINER
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 16 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
This drawing illustrates model TJ22F.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 17 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
ID
Service Part
Description
4
3311370.000
THERMOSTAT KIT
14
3310735.000
KIT, WARNING DECAL
100
3311359.000
TRAY KIT
101
3311360.000
FAN KIT
103
3311363.000
RETAINER KIT
107
3311454.000
FRAME KIT, TJ22F
109
3311368.000
MODULE KIT, DANFOSS
110
3311369.000
RESISTOR KIT
112
3311372.000
HOUSING KIT, THERMOSTAT
113
3311373.000
LIGHT KIT
116
3311378.000
SHELF KIT
117
3311380.000
HINGE KIT
119
3311462.000
GUIDE KIT, DOOR TRUCK
121
3311445.000
DOOR KIT, TJ22 TRUCK
123
3311469.000
PANEL KIT, TJ22
124
3311362.000
SHELF KIT, WIRE
125
3311365.000
DOOR KIT, FREEZER
126
3311366.000
PAN KIT, DRAIN
127
3311465.000
LOAD DUMP KIT
129
3311466.000
LATCH KIT
130
3311467.000
LATCH KIT
135
3312372.000
HARNESS KIT, FREIGHTLINER
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 18 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
WARNING
Dometic Corporation, Environmental Division (Dometic) manufacturers of Dometic
Refrigerator products, makes the following safety warnings concerning the application,
installation, use and care of its products. Although these warnings are extensive, there may
be specific hazards which may arise out of circumstances which we have not outlined
herein. Use this as a guide for developing an awareness of potential hazards of all kinds.
Such awareness will be a key factor in assuring your SAFETY and comfort.
ELECTRICITY – Many Dometic products operate on 115 or 230 volt AC power and/or
12/24 volt DC power. Such voltages can be LETHAL: therefore, the chassis, cabinets,
bases, etc., on all components must be grounded together and connected to the vehicle’s
grounding system. Sparks can occur as switches, thermostats and relays open and close in
the normal operation of the equipment. Since this is the case, ventilating blowers for the
removal of hazardous fumes or vapors should be operated at least 5 minutes before and
during operation of any Dometic product or group of Dometic products. All electrical
connections must be covered and protected so accidental contact cannot be made by persons
using the equipment; as such contact could be LETHAL.
ELECTROLYSIS – Electrical leakage of any component can cause electrolytic
deterioration (electrolysis) resulting in vehicle component damage which could cause loss
of life. All Dometic components must be kept clean and dry and checked periodically for
electrical leakage. If any electrical leakage is detected, the component should be replaced or
the fault causing the leakage corrected before the component is put back into service.
GAS – Dometic Refrigerator components utilize R134a refrigerant, R409A or R404A,
R125/R143a/R134 (44%/52%/47%) which are non-toxic, nonflammable gases; however,
these gases contain no oxygen and will not support life. Refrigerant gas tends to settle in
the lowest areas of the compartment. If you experience a leak, evacuate all personnel, and
ventilate area. Do not allow open flames in the area of leaks because refrigerant gas, when
burned, decomposes into other potentially LETHAL gases. Refrigerant components operate
at high pressure and no servicing should be attempted without gloves, long-sleeved clothing
and eye protection. Liquid refrigerant can cause severe frost burns to the skin and eyes.
VENTILATION – Dometic Refrigerator components are designed to move air through a
heat exchanger by a blower or propeller fan. This design necessarily produces a suction on
one side of the air handling component and a pressure on the other side. Air handling
components must be installed so that the suction pressure action does not: (1) pressure an
area to the extent that structural failure occurs which could cause harm to occupants or
bystanders, or (2) cause a suction or low pressure in an area where hydrogen gas from
batteries, raw fuel vapor from fuel tanks, carbon monoxide from operating propulsion
engines, power generators or heaters, methane gas from sewage holding tanks, or any other
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 19 of 20
Freightliner Refrigerator Troubleshooting Guide
750000005 (TJ18F)
750000011 (TJ22F)
750000026 (TJ18FP3)
dangerous gas or vapor could exist. If a unit is installed in such a manner that allows
potentially lethal gases or vapors to be discharged by the air handling unit into the living
space, this could result in loss of life.
Maximum protection against the introduction of dangerous gases or vapors into living
spaces can be obtained through the introduction of clean air into the living space. Bear in
mind that the advent of air conditioning, whether it is for cooling or for heating, naturally
leads to the practice of closing a living space tightly. Never close all windows and doors
unless auxiliary ventilating systems, which introduce clean outside air into the living space,
are used. Always leave enough window and door openings to provide adequate ventilation
in the event potentially lethal gases or fumes should escape from any source.
Note:
Never sleep in any closed area when any equipment, which functions as a result of the
combustion of a volatile fuel, is in operation (such as engines, generators, power plants, or
oil-fired heaters, etc. At any time, the exhaust system of such devices could fail, resulting in
a build-up of LETHAL gases within the closed area.
DOMETIC CORPORATION, ENVIRONMENTAL DIVISION
P.O. Box 15299 I Richmond, VA 23227 USA
Phone +804 746 1313 | Fax +804 746 7248
www.dometic.com
Page 20 of 20