Sierra EGL-T12 User manual

1953 W. Gulf To Lake Hwy, Lecanto, FL 34461
Phone: [phone] FAX: [phone]
[e-mail] www.Dentalvacuums.com
EGL-T12 Triple Oil-less Air
Compressor (1-6 Users)
2022 USER MANUAL/Installation Instructions

TABLE OF CONTENTS
Cover
Congratulations
Customer support
Warranty Policy
Safety
Safety Continued
System Layout
System Layout Cont.
Specifications
Installation
Installation Cont.
Start-up Procedure
Preventative Maintenance
Troubleshooting
Troubleshooting Cont.
Maintenance Log
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4
5
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12
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On the Purchase of your Eagle-T12 oil-less dental compressor. Our Eagle-T12
oil-less dental compressors provide clean dry air to each chair
flawlessly, requiring less maintenance than traditional compressors. Now that’s
peace of mind you can stand behind! We are certain you will love your new product!
If you are not satisfied 100% with this products please reach out and let us know,
we are successful because of your FEEDBACK!
352-527-1975
Email: [e-mail]
2
Congratulations!

CUSTOMER SUPPORT
“We are happy to help you with any questions or
concerns you may have about your equipment”
Contact Us at 352-527-1975
We're here to help!
Sierra Dental Equipment Inc.
1953 W. Gulf to Lake Hwy
Lecanto, FL 34461
[email protected]
DentalVacuums.com
Look for us… on social media!
3

WARRANTY POLICY
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Sierra Dental Equipment Limited Warranty
Warranty for the EAGLE-T12 oil-less compressor is limited to the original purchaser
of the unit. Sierra Dental Equipment is only obligated under this warranty to the
repair or replacement of defective parts or materials The defect(s) must be
reported to Sierra Dental Equipment within the valid warranty period.
Sierra Dental Equipment will examine the product to determine if the parts are
defective. Equipment that has been abused, neglected, or damaged by being
improperly installed/maintained are not covered by this warranty. We are not
responsible for work performed on the unit.
Warranty Period
Warranty is valid only with the return of the warranty card within 30 days of
purchase for a period of 3 years or 2100 hours whichever comes first . YOU
MUST INCLUDE a copy of the start-up procedure which came with your new
compressor. This is to confirm little to no leaks in the air system.
Warranty Service and Return Policy
To obtain warranty service, product must be returned to Sierra Dental Equipment for
examination at the purchaser’s expense. All returns must be authorized, and a return
material authorization (RMA#) number must be obtained from Sierra Dental Equipment.
Returned units must be properly packaged for shipping. We are not responsible for
shipping damages or shipping charges. Sierra Dental Equipment will, at their
discretion, repair or replace defective parts.**PLEASE NOTE** there is a 25% re-
stocking fee on all returns.
YOU MUST DO A PRESSURE TEST AFTER THE COMPRESSOR IS INSTALLED TO
VALIDATE WARRANTY! (See pg. 12)

SAFETY
WARNING
To prevent fire or electrical shock, do
not expose this unit to rain or
moisture, excessive heat or improper ventilation.
ATTENTION USERS
Alerts users of important operating
and maintenance instructions. Read
carefully to avoid any problems
Warns users of a potentially hot
surface and a danger of burns
Warns users that uninsulated voltage
is present and can cause electric
shock
5
Use of the Eagle-T12 air compressor not in compliance with the
instructions specified in this manual may result in
permanent failure and voided warranty of the unit.

1. IMPORTANT - This equipment:
a) Has hot, electrical, and moving parts;
b) May start or stop automatically, depending on the tank’s pressure or the tripping of electrical
protection elements;
c) May cause mechanical or electrical interferences in nearby equipment;
d) Must not be operated in places where non-authorized people, children, or animals may have
access;
e) Requires an authorized person to supervise its use and ensure proper maintenance;
f) Must be installed and operated in areas well ventilated and protected against humidity and
water;
g) Must be installed and operated in areas that do not exceed 100 degrees Fahrenheit.
2. Never exceed the maximum pressure of 100 psi.
3. Before any maintenance, be sure the equipment is unplugged and not energized.
4. Never change the adjustment of the safety valve or pressure switch. They are factory regulated and any
adjustments made once in the field could void your warranty. If any adjustments to the pressure switch
is needed, call your authorized dealer for Sierra Dental Equipment Inc.
5. Never perform welding jobs or repairs on the air pressure tank because this can affect its resistance or
disguise more serious problems. If there is any leakage, crack, or corrosion, immediately stop operating
the equipment and contact your authorized dealer for Sierra Dental Equipment.
6. Air compression is a heat generating process. The pump unit and tubes are subject to high
temperatures. Therefore, one must be careful when handling them in order to avoid burns.
7. Before connecting the compressor to a power supply, verify that all electrical fittings are tight.
8. Never use solvents to clean your compressor.
1. The use of solvents or paint accumulation may cause explosion risks and irreversible damage
to the product in general. Cleaning products and the environment may not contain solvents.
9. Do not remove the attached accessories when the compressor is pressurized. Do not clean or touch
the electric components without unplugging the compressor from the electrical power supply. Not
following the orientations may cause physical and material damage.
10. In case of any irregularities with the equipment, stop operating it immediately and contact your
authorized dealer for Sierra Dental Equipment Inc.
SAFETY CONTINUED
6

SYSTEM LAYOUT
Air muffler & Auto purge
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Tank
Power cord
Low voltage control box
Drain
Purge shut off valve
Purge silencer
Purge solenoid valve Strainer Coalescing filter
¾ HP Compressor
heads (x3)
Desiccant dryer
Solenoid Coil
Low voltage reset
24v Remote
wires
Capacitors (x3)
Outlet

SYSTEM LAYOUT
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Pressure gauge
Fan shrouds (x3)
Rubber feet
ASME Safety valve
Pressure switch
Heat Exchanger
Inlet Filters (x3)

SPECIFICATIONS
SITE REQUIREMENTS
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Voltage 230 Volts
Circuit breaker rating 15 Amp
Minimum wire size 14 Gauge
Minimum trunk line size ½”
Max ambient temp. 100°F
Minimum ambient temp. 50°F
This equipment must be installed in a well ventilated mechanical room to
prevent overheating and failure not covered by the warranty.
Description Specification
Model # EGL-T12
Max users 6
Air dryer Yes/Dessicant/Auto purge
Number of heads 3
Total horsepower 2.25
CFM 7.58
Tank gallons 30 g
Voltage 230 V AC
Amps 12
Decibels 67
Weight 205 lbs.
Height 32"
Width 39"
Depth 22"

INSTALLATION
1. Location: Install the compressor in a covered, well ventilated area, free of dust, gases,
toxic gases, humidity, or any other kind of pollutant. The maximum ambient
temperature recommended during operation should be no greater than 95 degrees
a. IMPORTANT: Avoid installation in small places such as a storeroom or closet.
2. Position: Mount at least 32 inches (800mm) from any obstacle, to allow good ventilation
during operation and to make maintenance easier.
a. Compressor Installation: When connected to the air network, the discharge
connection must be joined by means of a hose or expansible gaskets so that the
charges, thermal expansion, piping’s weight, mechanical and thermal shocks or
obstructions are not transmitted to the air tank. Physical damage to the
compressed air tank may occur if the above warnings are not followed.
3. Foundation/Floor: The compressor must be placed on a concrete base, which must be
able to bear the equipment’s weight. The equipment must be level. The compressor is
equipped with rubber feet (Assembled by installer)
4. Electric Connection:
a. Consult a specialized electrician to evaluate the electrical power supply and to
select the adequate protections and input devices, and to perform the
installation service. USE A MULTI-METER to check the actual line voltage.
(MUST BE 220-240 Volts AC)
b. 208 V will require the controller to be rewired for 230.
Transformer Orange wire needs to be swapped with transformer Red wire for 208v operation.
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YOU MUST DO A PRESSURE TEST AFTER THE COMPRESSOR IS
INSTALLED TO VALIDATE WARRANTY! (See pg. 12)

INSTALLATION
5. The electrical input wires must be in accordance to the motor power, voltage and
distance from electrical energy source.
6. Before installing the product, verify that the product voltage is compatible to the local
electrical power supply (220-240) –(208) require the 24v transformer to be rewired.
See page 10.
7. In order to avoid electrical shock, a grounding installation must be utilized.
8. For your safety, a circuit breaker/fuse must be installed.
9. Grounding Instructions: This product must be grounded in the event of an electrical
short circuit or insulation failure; the grounding reduces the risk of electric shock by
providing an escape wire for the electric current. This product is equipped with a cord
having a grounding wire. Ensure that the product is properly installed and grounded in
accordance with all local codes and regulations.
10. WARNING: The incorrect installation of the grounding wire connector may result in an
electric shock. If it is necessary to replace or repair both the cable and the connector,
do not connect or join the grounding wire to the neutral wire or any other. The green
wire, with or without yellow stripes, is only to the grounding function. In case of doubts
regarding the grounding information or whether the product is properly grounded,
make sure you contact a qualified electrician to verify the connections.
11. The thermal protector is located inside the electrical motor. This will shut the electric
motor off automatically.
-INSTALLATION EXPENSES ARE PURCHASER’S RESPONSIBILITY
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START-UP PROCEDURE
After installation is complete, perform the following start up procedure:
1. Confirm the voltage is between 220-240 Volts AC.
2. Completely open discharge ball valve (Top of tank, next the pressure switch)
3. Turn the compressor on using the main power switch. (Located on the pressure switch) The
compressor will automatically turn off when tank reaches 100 psi.
4. Once the compressor & trunk line has been filled to 100 psi. Close the discharge ball valve, wait
10 minutes.
5. Open discharge valve while monitoring the pressure gauge for any loss greater than 3psi.
6. If there is a pressure drop, address where the air is leaking from in your air lines and at each
operatory. Once all the leaks are addressed. Repeat steps 1-4. DO NOT INSTALL this
compressor on a leaking air system, THIS WILL VOID YOUR WARRANTY.
Your EAGLE-T12 Compressor is ready to operate.
This compressor is preset from the factory to automatically start at 80 psi and shut off at 100 psi.
Sign Here to Verify STEPS 1-5 for WARRANTY VALIDATION
VOLTAGE: __________________________
Installer
Name:______________________Signature:_______________________Date:___/___/_____
Dentist
Name:______________________Signature:_______________________Date:___/___/_____
12
You MUST INCLUDE a signed copy of this with
your WARRANTY card to validate warranty.
You MUST INCLUDE a signed copy of this with your
WARRANTY card to validate warranty.

PREVENTATIVE MAINTENANCE
In order to guarantee the compressor’s perfect operation and good warranty status which will ultimately
extend the service life, please follow these recommendations below:
1. Monthly
a. Check the operation of the pressure switch (80-100psi)
b. Check the tank for condensation using the drain petcock (The tank’s pressure must not be
greater than 10 psi) If moisture is present you need to replace the filter & desiccant in your
drying system. Further maintenance may be required if the filter has not been changed
recently or regularly. Moisture in your air lines is the first sign of a leak. Air leakage causes
premature failure not covered by warranty.
c. Check for abnormal noise or vibration. If the problem persists after the following corrective
actions are taken, contact your local authorized dealer for Sierra Dental Equipment Inc.
d. Check the intake filters. When an intake filters are clogged it is necessary that they be
replaced. Contact your local authorized dealer for Sierra Dental Equipment Inc. for
replacement filters –Do Not Wash the Filter Element
2. Quarterly
•Change the intake filter elements & coalescing filter every (175) hours or quarterly (whichever
occurs first)
a. Clean the compressor’s external surface with neutral detergent and a wet cloth
2,500 HOURS/ TOP END SERVICE KIT/ Call (352-527-1975)
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Motor(s) will not start
-Check supply voltage with a multimeter. (220- 240 is acceptable) Buck-boost
transformer will be necessary if your voltage is above or below the acceptable
voltage.
-Damaged motor or start capacitor.
-Automatic Thermal protector tripped. (Motor will re-start as soon as temperature
decreases) If this happens, contact technical support.
-Manual Thermal protector tripped. If this happens, you can reset the breaker
manually. If the problem persists, call technical support.
Purge valve is leaking air from the tank.
-In Tank Check valve is not sealing because of impurities on seal. Remove and
inspect/clean Or Replace.
-Check voltage at the solenoid coil plug. (220-240V)
-Clean or replace purge solenoid.
Low pressure or no pressure
-The demand is above the compressor’s capacity (1-6 User)
-Filter(s) may clogged. Inspect/Replace filter element(s)
-Air leaks (See page 12)
Notes:
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
TROUBLESHOOTING
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The compressor unit overheats
-High ambient temperature (MAX 100 degrees Fahrenheit)
Improve installation conditions (climate control, ventilation,)
-Inadequate electric power supply. -Check supply voltage with a multimeter. (220-
240 is acceptable) Buck-boost transformer will be necessary if your voltage is
above or below the acceptable voltage.
-Demand is above compressor’s capacity (1-6 Users)
-Filter(s) may be clogged. Inspect/Replace filter element(s)
-Operating in a non-adequate environment. Improve local conditions.
Abnormal noise or vibrations
-Loose connections. Find and re-fasten them
-Loose fan cover
-Damaged motor mount
-Compressor installed incorrectly
-Contact your local authorized dealer for Sierra Dental Equipment Inc.
-Damaged connecting rod(s) bearings. See Preventative Maintenance Section
Moisture in the air lines/operatories
-Drain the tank. Make sure there is less than 10 psi before opening the drain.
If water is present perform dryer maintenance.
-Air leaks. See page 12.
Notes:
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
TROUBLESHOOTING
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16
MAINTENANCE LOG
Date of
Service
Working
Hours
Ambient
Temp. Services Provided Additional Remarks
Technician
Signature

START-UP PROCEDURE
After installation is complete, perform the following start up procedure:
1. Confirm the voltage is between 220-240 Volts AC.
2. Completely open discharge ball valve (Top of tank, next the pressure switch)
3. Turn the compressor on using the main power switch. (Located on the pressure switch) The
compressor will automatically turn off when tank reaches 100 psi.
4. Once the compressor & trunk line has been filled to 100 psi. Close the discharge ball valve, wait
10 minutes.
5. Open discharge valve while monitoring the pressure gauge for any loss greater than 3psi.
6. If there is a pressure drop, address where the air is leaking from in your air lines and at each
operatory. Once all the leaks are addressed. Repeat steps 1-4. DO NOT INSTALL this
compressor on a leaking air system, THIS WILL VOID YOUR WARRANTY.
Your EAGLE-T12 Compressor is ready to operate.
This compressor is preset from the factory to automatically start at 80 psi and shut off at 100 psi.
Sign Here to Verify STEPS 1-5 for WARRANTY VALIDATION
VOLTAGE: __________________________
Installer
Name:______________________Signature:_______________________Date:___/___/_____
Dentist
Name:______________________Signature:_______________________Date:___/___/_____
12
You MUST INCLUDE a signed copy of this with
your WARRANTY card to validate warranty.
You MUST INCLUDE a signed copy of this with your
WARRANTY card to validate warranty.