Sealey Power PRODUCTS SSC12710 User manual

INSTRUCTIONS FOR:
SILENT ELECTRIC ROTARY SCREW COMPRESSORS
270ltr BELT DRIVE 10hp
MODEL No's: SSC12710 & SSC12710D
Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions
and properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS AND
CAUTIONS. USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY
CAUSE DAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
1.1.7. DO NOT pull the powered appliance by the power cable.
1.1.8. DO NOT pull power plugs from sockets by the power cable.
1.1.9. DO NOT use worn or damage leads, plugs or connections.
Immediately replace or have repaired by a qualified electrician.
1.1.10. ELECTRICAL CONNECTION TO MAINS POWER SUPPLY.
Three-phase compressors are supplied with cable, but
without plug. The plug of the power supply cable must never
be used as a switch but must be plugged into a power socket
that is controlled by an adequate differential switch (magneto
thermal switch). It is advisable to install the connector,
magneto thermal switch and fuses near to the compressor
(3mtr away at the most). The magneto thermal switch
must be rated at 25A and the fuses must be 32A. The
fuse rating refers to the type gl (standard) fuse. If cartridge
fuses type aM (delayed) are used the rating should be
reduced by 20%. The rating of the magneto thermal switches
refer to switches type K.
Ensure that the installed power in kW is at least double the
input of the electric motor. All silent rotary screw compressors
have 'Star/Delta' starting, which enables the motor to start-up
with as little electrical energy consumption as possible.
1.1.11. This product must be fitted with a 3-phase plug
according to the diagram, and will require a minimum of
16Amps per phase, (preferably 32Amp) electrical supply.
You must contact a qualified electrician to ensure an
appropriately fused supply is available.
Connect GREEN/YELLOW wire to earth (E) terminal.
Connect the live wires to live 1, 2 and 3. Check for the
correct direction of rotation (see arrow on side panel) to
confirm correct wiring of 3-phase plug when you first
run the compressor (refer to section 4.8.1).
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12
SSC12710D
1.1. ELECTRICAL SAFETY
 WARNING! ELECTRICAL INSTALLATION OF
COMPRESSOR TO A 3-PHASE 415VOLT SUPPLY
MUST ONLY BE CARRIED OUT BY A QUALIFIED
ELECTRICIAN.
Make sure the power supply cable is correctly connected
to the earth. It is the user’s responsibility to read,
understand and comply with the following:
You must check all electrical equipment and appliances to
ensure they are safe before using. You must inspect power
supply leads, plugs and all electrical connections for wear
and damage. You must ensure the risk of electric shock is
minimised by the installation of appropriate safety devices.
An RCCB (Residual Current Circuit Breaker) should be
incorporated in the main distribution board.
You must also read and understand the following instructions
concerning electrical safety.
1.1.1. The Electricity At Work Act 1989 requires all portable
electrical appliances, if used on business premises, to be
tested by a qualified electrician, using a Portable Appliance
Tester (PAT), at least once a year.
1.1.2. The Health & Safety at Work Act 1974 makes owners of
electrical appliances responsible for the safe condition of the
appliance and the safety of the appliance operator. If in any
doubt about electrical safety, contact a qualified
electrician.
1.1.3. Ensure insulation on all cables and the product itself is safe
before connecting to mains power supply.
1.1.4. Ensure that cables are always protected against short circuit
and overload.
1.1.5. Regularly inspect power supply, leads, plugs and all electrical
connections for wear and damage, especially power
connections, to ensure that none are loose.
1.1.6. Important: The mains voltage must correspond with that
indicated on the electrical data nameplate for each machine;
the admitted tolerance must remain within +/- 6%.
For example:
Voltage, 400Volt: minimum tolerance 376Volt
Voltage, 400Volt: maximum tolerance 424Volt

When completed, check that there are no bare wires,
that all wires have been connected correctly, that the
cable external insulation extends beyond the cable
restraint and that the restraint is tight. Never use the
earth connection instead of the neutral. The earth connection
must be achieved according to the EN 60204 industrial
safety standards.
1.1.12. THE IMPORTANCE OF THE EARTH CONNECTION
This compressor must be connected to earth to safeguard
the operator against electrical shocks whilst the machine is
in use. The electrical connection must be carried out only by
a qualified electrical engineer. The earth wire of the power
supply cable of the compressor must be connected only and
exclusively to the PE pin of the terminal board of the actual
compressor.
1.1.13. If it is necessary to replace a plug on the power supply cable
ensure that the earth wire is connected. All electrical repairs
must be carried out exclusively by a qualified electrical
engineer. Avoid all risks of electric shocks. Never use the
compressor with a damaged electrical mains supply cable.
Regularly check all electrical cables. Never use the
compressor in or near water or near a hazardous area where
electrical shocks may be encountered.
1.1.14. CHECK THE ROTATION DIRECTION
These 10hp compressors are equipped with a phase
sequence relay (KR) that, every start, checks the rotation
direction and, in case of wrong rotation direction, stops
the compressor (“AL3” error message on the electrical
board). Disconnect the compressor from the mains power,
reverse two phases of the power cable on the terminals for
connection of the cable line and restart the compressor.
1.2. SAFETY (INSTALLATION).
IMPORTANT! The compressor must be installed and
commissioned by qualified personnel.
7 DO NOT USE THE COMPRESSOR IF IT IS FAULTY. Ensure
that the compressor is in good order and condition before use.
If the compressor is noisy or vibrates excessively when
running, stop it immediately. If in any doubt do not use the unit
and contact an electrician/service agent.
3 OPERATE THE COMPRESSOR AT THE RATED VOLTAGE.
Operate the compressor at the voltage specified on the
electric data plate. You could damage or burn-out the motor
and other electric components if the compressor is operated at
a higher or lower voltage than its rated voltage.
3 USE THE COMPRESSOR CORRECTLY. Operate the
compressor in compliance with the instructions provided in this
manual. DO NOT allow children to use the compressor or
those who are not familiar with it.
1.3. SAFETY (OPERATIONAL AREA/ENVIRONMENTAL).
3 OPERATIONAL AREA. Keep the work area clean and remove
any tools or unnecessary items that are not required. Install
the compressor on a firm surface away from any heat sources.
3USE THE COMPRESSOR IN A WELL VENTILATED AREA.
Ensure there is adequate ventilation space all around the
compressor.
7DO NOT USE THE COMPRESSOR IN THE PRESENCE OF
FLAMMABLE LIQUIDS OR GAS. The compressor may
produce sparks while running. DO NOT use the compressor
where there may be paints, gasoline, chemical compounds,
glues or any other flammable or explosive material.
3KEEP UNAUTHORISED PERSONS AWAY FROM THE
WORKING AREA. All non-essential persons must be kept at a
safe distance from the operational area. Prevent children or
anyone else from touching the power supply cable of the
compressor.
7DO NOT USE THE COMPRESSOR OUTDOORS. DO NOT
install the compressor in damp or wet locations or in areas
where condensation may form.
7DO NOT COVER THE COMPRESSOR or restrict air flow
around the machine whilst operating.
3 IF THE COMPRESSOR IS USED FOR PAINTING JOBS.
a) DO NOT work in closed rooms or near naked flames.
b) Check that the area selected for spraying is provided with
an air change system or adequate ventilation.
c) Wear face and nose mask.
3 When the compressor is not in use, it should be switched
off, isolated from the mains supply and the air drained
from the tank.
3 STORE THE COMPRESSOR APPROPRIATELY. If the
compressor is not used immediately, it must be stored in a dry
place away from atmospheric agents until it is installed.
1.4. SAFETY (AIR/PRESSURE).
 WARNING! THE AIR TANK IS A PRESSURE VESSEL AND
THE FOLLOWING SAFETY MEASURES APPLY:
7DO NOT tamper with the safety valve and DO NOT modify
or alter the tank in any way. DO NOT strap anything to the
tank.
7DO NOT subject the tank to impact, vibration or to heat
and DO NOT allow contact with abrasives or corrosives.
7 DO NOT drill, weld or deform the compressed air tank.
7 DO NOT UNSCREW THE OUTLET CONNECTION WHEN
THE TANK IS PRESSURISED. DO NOT unscrew the
connection for any reason whatsoever without first checking if
the tank is discharged.
3Ensure the air supply valve is turned off before disconnecting
the air supply hose.
3 PNEUMATIC CIRCUIT. Use recommended pneumatic hoses.
Read the instructions regarding any accessory used with the
compressor. Ensure the safe working pressure of any air
appliance used exceeds the compressor maximum pressure.
3Ensure the air hose is not tangled, twisted or pinched.
7DO NOT operate the compressor without an inlet air filter.
1.5. SAFETY (TRAINING/GOOD PRACTICE).
7DO NOT allow anyone to operate the compressor unless they
have received full instructions and adequate training.
3 KEEP THESE USE AND MAINTENANCE INSTRUCTIONS
for future reference and make then available to the compressor
operator. The operator must be familiar with all the controls and
compressor characteristics before starting to work with the
machine.
3 AVOID ACCIDENTAL START-UP. Ensure that the main switch
is turned OFF before connecting the compressor to the
electrical power supply. Never move the compressor while it is
connected to the electrical power supply or when the tank is
pressurised.
3 PRECAUTIONS FOR THE POWER SUPPLY CABLE. DO NOT
disconnect the power supply plug by pulling on the cable. Keep
the cable away from heat, oil and sharp edges. DO NOT stand
on the electrical cable or squash it under heavy weights.
3 LOOK AFTER THE COMPRESSOR WITH CARE. Follow the
maintenance instructions. Inspect the power supply cable on a
regular basis and if damaged it must be repaired or replaced
by an authorised service centre. Visually check the outside
appearance of the compressor, ensuring that there are no
visual anomalies. Contact your nearest Sealey dealer if
necessary.
3 CHECK FOR FAULTY PARTS OR AIR LEAKS. Before each
use, visually inspect the compressor. If a safety guard or other
parts are damaged, they must be checked carefully to evaluate
whether they continue to provide the intended protection.
Check the alignment of moving parts, hoses, gauges,
pressure reducers, pneumatic connections and every other part
that may be crucial for the normal operational efficiency of the
compressor. All damaged parts must be properly repaired or
replaced by an authorised service centre or replaced following
the instructions provided in instruction manual.
3 TURN THE COMPRESSOR OFF WHEN IT IS NOT IN USE.
When the compressor is not in use turn the main ON/OFF
switch to the OFF position (“0”).
7DO NOT DEFACE THE CERTIFICATION PLATE ATTACHED
TO THE END OF THE COMPRESSOR TANK.
1.6. SAFETY (PERSONAL/MECHANICAL).
7 DO NOT USE THE COMPRESSOR WITHOUT THE SAFETY
GUARDS FITTED. Never use the compressor without all the
safety guards properly fitted in their correct place (i.e.
panelling, belt guard, safety valve). If these parts are to be
removed for maintenance or servicing purposes, ensure that
they are correctly reinstalled before using the compressor
again.
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12

2. INTRODUCTION & SPECIFICATIONS
High performance, top of the range screw compressors offer high
continuous output of air with low running costs. One of the most
economical ways to get compressed air 24/7 with minimal downtime.
Very few moving parts means servicing/maintenance will be less
frequent and less expensive compared to an equivalent piston
compressor. Insulated Class F 10hp motor with IP54 protected
control box which is easy to operate with digital display showing key
information like air pressure, oil temperature and maintenance
schedules. Features an insulated outer casing to minimise noise
(67dB.A at 1m) and offers protection to inner components. Also fitted
with a drain valve tap at base of unit to ensure easy function tank
drain when required. Model No. SSC12710D has a built in air dryer
allowing the unit to produce cleaner purified air especially required
when paint spraying. The dryer reduces the air temperature and
helps prevent corrosion which can cause air lines and fittings to
become clogged.
3. PREPARATION
MODEL No: SSC12710 SSC12710D
Motor Output (hp) 10 10
Voltage/Phase 415/3ph 415/3ph
Rated Supply (Amp) 32 32
Max Free Air Delivery
cfm (ltr/min)
30.2(860) 30.2(860)
Max. Pressure psi/bar 145/10 145/10
Tank Capacity (ltr) 270 270
Weight kg 217 257
Noise Level dB.A 67 67
Noise Level LwA N/A N/A
Overall Size (WxDxH) 1550 x 590 x 1255 1550 x 590 x 1255
3.1. TRANSPORTING AND HANDLING THE PACKED
COMPRESSOR.
The packed compressor must be transported by qualified
personnel using a forklift truck. Before moving the compressor
ensure that the load-bearing capacity of the forklift truck is
sufficient to take the weight to be lifted. Position the forks
exclusively as shown in fig.1A. Once the forks have been
positioned in the points indicated, lift slowly and smoothly.
Never stand near the area where the compressor is being
handled and never stand on the crate while it is being moved.
fig.1A fig.1B
7 DO NOT PUT OBJECTS OR PARTS OF THE BODY INTO
THE PROTECTION GRILLS. Never put your hands, fingers or
other parts of the body near moving parts of the compressor.
To do so may cause physical injuries and damage to the
compressor.
7 DO NOT TOUCH HOT PARTS OF THE COMPRESSOR.
To avoid burns do not touch the compressor cylinder, cylinder
head, motor or pipe from head to tank as these may be hot and
will remain so for some time after shutdown.
3 ALWAYS WEAR SAFETY GOGGLES. Always wear goggles or
equivalent means of eye protection. Never direct compressed
air towards any part of your body or that of others.
3 WEAR APPROPRIATE CLOTHING. DO NOT wear unsuitable
clothing, ties or jewellery as these may get caught up in moving
parts. Tie back long hair or wear a cap to cover your hair if
necessary.
3 PROTECT YOURSELF AGAINST ELECTRIC SHOCKS. Avoid
accidentally touching the metal parts of the compressor with
your body, such as pipes, the tank or metal parts connected to
earth. Never use the compressor where there is water or in
damp rooms.
1.7. SAFETY (MAINTENANCE/PARTS).
WARNING! Compressor must only be serviced by an
authorised agent. DO NOT tamper with, or attempt to
adjust, pressure switch or safety valve.
3 SPARE PARTS. Use only original and identical spare parts to
replace worn or damaged ones. Repairs must be made
exclusively by an authorised service agent.
3 MAINTENANCE. Regular maintenance of the compressor is
essential to ensure a long working life. Follow the maintenance
schedule detailed in these instructions.
7DO NOT dis-assemble compressor for any reason. The unit must
be checked by qualified personnel only.
3DO drain condensation from tank daily, inspect inside
walls for corrosion every three months and have a
detailed tank inspection carried out annually. Tank shell
must not fall below the certified thickness at any point.
3When not in use, store the compressor carefully in a safe, dry,
childproof location.
3 KEEP THE INTAKE GRILLS CLEAN. Keep the motor
ventilation grills clean. Regularly clean these grills if the work
area is particularly dirty.
7 DO NOT CLEAN PLASTIC PARTS USING SOLVENTS.
Solvents such as gasoline and thinners or other compounds
that contain hydrocarbons may damage the plastic parts. Clean
them with a soft cloth and soapy water or other suitable liquids.
3 USE ORIGINAL SPARE PARTS ONLY. The use of non-original
spare parts will invalidate the warranty and could seriously
damage the compressor. Original spare parts are available
from your local Sealey dealer.
3 MOVING OR MAINTAINING THE COMPRESSOR. Disconnect
the compressor from the electric power supply and completely
discharge the pressure from the tank before moving it or
carrying out any service, inspection, maintenance, cleaning,
replacing or inspection of parts.
3 ENSURE THAT EACH SCREW, BOLT AND GUARD IS
FIRMLY SECURED IN PLACE.
 WARNING! If an electrical fuse blows, ensure that it is
replaced with one of identical type and rating.
1.8. SAFETY (COMMON SENSE).
WARNING: The warnings, cautions and instructions
discussed in this instruction manual cannot cover all
possible conditions and situations that may occur. It must
be understood that common sense and caution are factors
which cannot be built into this product, but must be
applied by the operator.
3 USE THE COMPRESSOR EXCLUSIVELY FOR THE
APPLICATIONS SPECIFIED IN THIS INSTRUCTION
MANUAL. The compressor is a machine that produces
compressed air. Never use the compressor for purposes other
than those specified in this instruction manual.
3 WARNING. Pay attention to everything you do. Use your
common sense. DO NOT use the compressor if you are tired.
The compressor must never be used if you are under the
influence of alcohol, drugs or intoxicating medicines.
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12
DANGER! DO NOT DIRECT THE JET OF COMPRESSED AIR
DIRECTLY TOWARDS YOUR BODY. To avoid all risks never
direct the jet of air towards other people or animals.
7 DO NOT STOP THE COMPRESSOR BY PULLING ON THE
POWER SUPPLY CABLE (unless in an emergency). Use the
ON/OFF buttons on the control panel to stop the compressor.
7 DO NOT MODIFY THE COMPRESSOR IN ANY WAY.
Contact your local Sealey dealer for all repairs required. Any
unauthorised modification may impair the efficiency of the
compressor and may also cause serious accidents for those
who do not have the technical skill required to make such
modifications.
3 WE RESERVE THE RIGHT TO MAKE MODIFICATIONS
WHERE NECESSARY WITHOUT NOTICE.

3.2. UNPACKING THE COMPRESSOR.
3.2.1. To avoid damages and to protect the compressor during
transport it is placed on a wooden pallet, to which it is
secured by nuts and bolts. A cardboard cover is then strapped
to the pallet. All the shipping and handling information and
symbols are printed on the compressor packing. Using a forklift
truck take the compressor as near as possible to the place
where it is to be installed. Note! The machine must be
unpacked by qualified personnel using appropriate tools and
equipment.
3.2.2. Release the strapping holding the cardboard cover onto the
pallet and with the help of a second person lift the cover up
and off the compressor as shown in fig.1B.
3.2.3. Inspect the compressor for any shortages or damage. If
anything is found to be missing or damaged contact your
supplier.
3.2.4. Remove the four sets of nuts and bolts that secure the
compressor feet to the pallet as indicated in fig.1C.
3.2.5. Dispose of the packaging in accordance with local authority
regulations.
3.3. STORING THE PACKED AND UNPACKED COMPRESSOR.
3.3.1. If the compressor is not to be unpacked immediately store it in
a dry place at a temperature between +5°C and +40°C and
sheltered away from the weather. If the compressor is not used
immediately after unpacking it, place sheets over it to protect it
from dust, which may settle on the components. The oil is to be
replaced and the operational efficiency of the compressor is to
be checked if it is not used for long periods.
fig.1C
4.1. The compressor must be installed as indicated in these
instructions. Any machine failure due to incorrect
installation will invalidate the warranty.
4.1.1 The compressor should be operated on a flat surface.
4.1.2. Check the oil level, consulting the oil level inspection window.
Use only synthetic oil (see maintenance section for oil
specification).
4.1.3. Confirm the mains voltage corresponds with the voltage shown
on compressor data plate. Have a qualified electrician wire in
the compressor in accordance with Section 1.1.
4.1.4. When fully installed, start the compressor and ensure that
everything is in good working order before operational use.
Check the direction of rotation (see section 4.8.1) to
confirm correct wiring of 3-phase plug. Re-check oil levels.
4.2. ROOM TEMPERATURE.
4.2.1. For correct functioning of the compressor the room
temperature must not be lower than 5°C or higher than 45°C.
4.2.2. If the compressor is operated at a room temperature
lower than the minimum value, the condensate could be
separated within the circuit resulting in water mixing with the
oil. The resulting deterioration in oil quality would fail to
guarantee the even formation of an effective lubricating film
between moving parts with the possibility of seizure.
4.2.3. If the compressor works at a room temperature higher than
maximum value, the compressor would take in air that is too
hot, which would prevent the heat exchanger from adequately
cooling the oil in the circuit, raising the working temperature of
the machine, thus causing the thermal safety device to trip,
which stops the compressor due to the excessive temperature
of the air/oil mixture at the screw outlet.
4.2.4. The maximum temperature of the room is to be measured
while the compressor is running.
4.3. VENTILATION REQUIREMENTS.
4.3.1. The room must be provided with outlets that lead outdoors
near the floor and ceiling that will allow the natural circulation
of air. If this is not possible, install some fans or extractors (see
fig.2B) that guarantee an air flow rate 50% higher than that
taken in by the compressor (min. flow 2500m³/h). Ducts for the
inlet and outlet of the air can be used in unfavourable
environments. These ducts must be the same size as the
intake and delivery grills. If these ducts are longer than 3meters
contact the Authorised Service Centre.
4.4. SPACE REQUIRED FOR MAINTENANCE.
4.4.1. The compressor must be installed in a large room that is well-
ventilated, dust-free and sheltered away from rain and frost.
The compressor takes in a large amount of air that is required
for internal ventilation. A dusty atmosphere would in time
cause damage and inefficient performance. Dust drawn into
the machine will be taken into the air filter causing it to clog
rapidly. Incoming dust will also settle onto the components and
will be blown against the cooling radiator, consequently
compromising the efficiency of the heat exchanger. It is
therefore obvious that the cleanliness of the area in which the
compressor is installed is crucial for the correct efficiency of
the machine, avoiding excessive running and maintenance
costs. To facilitate maintenance and to create a favourable
circulation of air, the compressor must have sufficient free
space all around it as shown in figures 2A & 2B.
4.5. LIGHTING.
4.5.1. The compressor has been designed with the intention of
minimising areas of shade in order to facilitate the operator’s
interaction with the compressor both from a control and a
maintenance point of view. The lighting system in the area of
installation should be configured to further enhance this
interaction and should be considered as crucial for the operator’s
safety. Therefore, the room in which the compressor is
installed must be neither under lit nor over lit, and without shadow
zones, dazzling lights or stroboscopic effects due to the lighting.
4. INSTALLATION
fig.2A
fig.2B
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12

4.6. UNSUITABLE ENVIRONMENTAL CONDITIONS.
4.6.1. DO NOT install the compressor in an environment where there
is a risk of fire and/or explosion.
4.6.2. DO NOT install the compressor in an environment where there
is a risk that the machine may overheat. (Maximum permitted
operating temperature 45ºC).
4.6.3. DO NOT install the compressor in an atmosphere where the
humidity will be higher than 80%.
4.6.3. DO NOT install the compressor at an altitude of more than
1000m.
4.6.4. NOTE: This compressor is designed to work with a tank of a
specific size i.e. 270ltr. No liability will be accepted for any
related malfunctions or problems resulting from the compressor
being connected to a smaller tank. The compressor should not
be modified in any way.
4.7. POSITIONING THE COMPRESSOR.
4.7.1. Once the position in which the compressor is to be installed
has been identified ensure that the compressor is set on a flat
surface. No special foundations or bases are required for the
compressor .
4.7.2. Lift the compressor using a forklift truck (forks at least 900mm
long) and insert the vibration-damping pads (1) into the
transit bolt holes (2) in the metal feet as shown in fig.3.
DO NOT SECURE THE COMPRESSOR RIGIDLY TO THE
FLOOR.
fig.3
fig.4
fig.5
4.8. ELECTRICAL CONNECTION TO MAINS POWER SUPPLY.
Refer to section 1.1 (ELECTRICAL SAFETY).
4.8.1. CHECK THE ROTATION DIRECTION DURING THE
INSTALLATION PROCEDURE. (See fig.4-1)
These 10 Hp compressors are equipped with a phase
sequence relay (KR), see fig.5, that during every start up,
checks the rotation direction and, in case of wrong rotation
direction, stops the compressor (“AL3” error message on the
control panel). Disconnect the compressor from the
mains power, reverse two phases of the power cable on the
terminals for connection of the cable line and restart the
compressor. This procedure should be carried out by a
qualified electrician.
4.9. CONNECTING TO THE TANK COMPRESSED AIR OUTLET.
4.9.1. When connecting to the tank compressed air outlet always use
pneumatic hoses with the maximum pressure characteristics
and cross section appropriate to the output of the compressor.
Connect to the compressor using the 1/2" female BSP fitting
shown in fig.6-1. Use hose of the same diameter (or greater)
as the compressor outlet. If a connection hose leaks or is faulty
never try to repair it but replace it with a sound one.
 WARNING! Ensure that you have read, understood and
apply Section 1 safety instructions.
 IMPORTANT! The use of extension leads to connect this
compressor to the mains is not recommended as the
resulting voltage drop reduces motor, and therefore screw
performance which may cause damage to your compressor.
NOTE: Take care when selecting tools for use with the
compressor. Air tool manufacturers normally express the
volume of air required to operate a tool in cubic feet per minute
(cfm). This refers to free air delivered by the compressor (‘air
out’) which varies according to the pressure setting. Do not
confuse this with the compressor displacement which is the air
taken in by the compressor (‘air in’). ‘Air out’ is always less
than ‘air in’ due to losses within the compressor.
5.1. OPERATIONAL PRINCIPLE.
5.1.1. Air is drawn in through the air filter and passes through a valve
that controls its flow rate to the screw where it mixes with the
oil and is compressed. The air/oil mix produced by compression
is passed to a tank where an initial separation by gravity takes
place. The oil, being heavier, settles to the bottom. It is then
cooled and sent through a heat exchanger, filtered and injected
into the screw again. (The temperature is kept under control by
an electric fan that is directly controlled by a thermostat fitted
on the heat exchanger). The oil is required to reduce the heat
produced by the compression processes, to lubricate the
bearings and to maintain the screw lobes coupling. The air
is then sent through an oil separator filter to be additionally
purified from residue oil particles. It is cooled by means of
another heat exchanger producing a low temperature output
with acceptable oil residues (<3p.p.m). A safety system
monitors the crucial points of the machine and indicates any
abnormal conditions. The temperature of the air/oil mix at the
screw outlet is controlled by a thermostatic probe, which stops
the compressor if the temperature becomes too high.
fig.6
5. OPERATION
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12

fig.7
5.2 CONTROLS, INDICATORS AND SAFETY DEVICES (fig.8).
1. DISPLAY. Displays various functions including alarms and the
delivery screw unit temperature.
2. GREEN LEDs. These two LEDs indicate whether the
temperature is displayed in degrees Fahrenheit (°F) or
Centigrade (°C).
3. YELLOW LED. This LED indicates the current status of
the compressor.
4. START This button is used to turn the compressor on.
5. STOP This button is used to turn the compressor off.
6. h/RESET A single press of this button will reset the
compressor. If the button is held down the display will show the
total compressor usage in hours.
7. EMERGENCY STOP
BUTTON
This mechanically locking
push button is used to
immediately stop the
compressor in the case of
emergency only. With the
push button locked down it is
impossible to start the
compressor (The code 'AL3'
will be shown on the display).
To start the compressor
again, rotate the emergency
button to release it, then
press button h/RESET, then press the START button.
fig.8
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12
5.3. DESCRIPTION OF FUNCTIONS.
5.3.1. ON CONNECTION TO THE POWER SUPPLY. When the
compressor is first connected to the power supply, the display
shows the text “OFF”. The appropriate green temperature led
will be ON. The yellow led regarding compressor status will
be OFF. If an alarm condition exists the related alarm code will
be flashing on the display.
5.3.2. SWITCHING THE COMPRESSOR ON. From “OFF” status the
compressor can be switched on by pushing the 'start'
button. Immediately the air-end temperature appears on the
display and the 'star–delta' motor start up procedure begins.
The yellow led regarding compressor status starts to flash as
the motor begins to run. The yellow led stops flashing when the
compressor reaches load status.
5.3.3. AUTOMATIC OPERATION OF PRESSURE SWITCH. When
the maximum pressure is reached the solenoid valve operates
and the compressor begins idle running. After 120 seconds of
idle running time the motor turns off. The display continues to
show the air-end temperature and the yellow led continues to
flash but at an increased frequency for 30 seconds before the
compressor can be restarted. After 30 seconds the flashing
frequency of the led slows down and the compressor is
ready to start again when the pressure in the system goes
down below the minimum pressure.
5.3.4. SHUT DOWN & START UP PROCESSES. If the 'stop'
button is pushed when the motor is running in 'star–delta' mode,
the compressor turns off after 30 seconds of idle running;
during this time the display shows the air-end temperature and
the yellow led is flashing slowly. When the motor is off, the
display shows the text “OFF” and the yellow led continues to
flash (but faster than before) for 30 seconds after which the
motor turns off. If the 'start' button is pushed during the
'restart time', the compressor will only start after the
'restart time' has elapsed. If the 'stop' button is pushed
when the compressor is in stand-by status (the motor is off
waiting for pressure switch signal), the display immediately
shows the text “OFF” and the “restart time” begins with the
related fast flashing of the yellow led, also in this case if the
button is pushed the compressor will start again only after
the “restart time” has elapsed.
5.3.5. Note: If the 'stop' button is pushed after the 'start' button
and when the motor is still in 'star–delta' mode, the motor stops
immediately and the display shows the text “OFF”, the led
turns off immediately (there is no “restart time” is this case).
Pushing the 'start' button (even after a very short time) the
motor starts immediately as described in section 5.3.2.
5.3.6. RESET BUTTON & SCREW DELIVERY TEMPERATURE:
The display shows the compressor temperature in degrees
Fahrenheit (°F) or Centigrade (°C), depending on the initial
settings made. The alarm high temperature is 105°C (221°F)
and to reset the alarm the temperature has to be under 95°C
(203°F). In the case of a high temperature alarm, the
compressor stops (regardless of its status) and is not possible
to start it again, the display shows alternately the air-end
temperature and the alarm code “AL1”, and the yellow led is
off. To reset the alarm and start the compressor again the user
must push the 'reset' button.
5.3.7. If the air-end temperature is below – 5°C (23°F), the alarm
code “AL2” appears alternating with the air-end temperature,
the yellow led is off and the appropriate green temperature
led related will be flashing. The alarm can be reset by pushing
the 'reset' button and is accepted only if the temperature is
above -5°C (23°F).
5.3.8. If the air-end temperature drops below – 40°C (- 40°F) it means
that the temperature sensor is short circuited. In this case the
compressor stops immediately regardless of its status and it is
not possible to start it again The display shows alternately the
air-end temperature and the alarm code “AL0”, the yellow
led will be off. The alarm can be reset by pushing the
'reset' button and it will only be accepted when the
temperature rises above -5°C (23°F).

5.3.9 ALARM CODES (AL5) 'Control panel internal malfunction'.
If the control panel has an internal malfunction, the display
shows the alarm code “AL5”. In this case the compressor
stops immediately regardless of status and it is not possible to
restart it. The code alarm will flash on the display, the yellow
led and the temperature led will be off. The alarm can be reset
by pushing the 'reset' button only when the problem is
resolved.
5.3.10 ALARM CODES (AL6) 'Maintenance required'.
When the set maintenance hours have expired, the alarm
code “AL6” appears on the display, this message does not
affect the normal function of the compressor. The alarm code
flashes alternately with the text that normally appears on the
display depending on the function. The flashing continues
when the compressor is “OFF”. The alarm can be reset by
pushing the 'reset' button only when the maintenance
tasks have been performed.
IMPORTANT: Failure to maintain the compressor as
advised in these instructions will invalidate the warranty.
5.3.11 CHECKING HOURS OF COMPRESSOR OPERATION:
During the normal working of the compressor, regardless of
its status except under alarm condition, or when the display
shows the text “OFF”, the worked hours (loading hours + idle
running hours) can be displayed when the 'reset' button is
pushed for 4 seconds. Subsequent pushes of the button will
cycle the display through four pages of information. The
worked hours are divided between two displays: the first one
shows the hours worked in units of thousands, the second
one the worked hours up to 999 (example: for worked hours
of 24563, the first display is 024, and the second display is
563). If the 'reset' button is pushed again after the second
display of the worked hours, the time (in hours) to
maintenance will appear, also displayed in 2 parts as
explained above, (example: hours to maintenance 1561, first
display is 001 and second display is 561) From this condition,
if the 'reset' button is pushed again, the display returns to
text “OFF” or the air-end temperature display. If, during the
cycle, the button is not pressed for 10 seconds the display
returns to the original message.
5.4. AUXILIARY CONTROL DEVICES.
5.4.1. AIR CIRCUIT PRESSURE CONTROL GAUGE
Indicates the system air pressure value (see 1 in fig.9 below)
5.4.2. TANK PRESSURE GAUGE.
Indicates the air pressure value in the tank
(see 1 in fig.10 below)
5.4.3. TANK PRESSURE RELIEF VALVE
(see 2 in fig.10 below)
fig.9
fig.10
fig.11
5.5. BEFORE USE CHECKS
5.5.1. CHECK THE CORRECT OPERATION OF THE SAFETY
DEVICES BEFORE STARTING.
5.5.2. OIL LEVEL Check the oil level as indicated in Section 7
“Compressor maintenance”.
5.5.3. DO NOT START THE COMPRESSOR WITH THE GUARDS
OPEN TO AVOID INJURY DUE TO MOVING COMPONENTS
OR ELECTRICALLY POWERED EQUIPMENT.
5.6. STARTING THE COMPRESSOR.
5.6.1. Following a power cut the compressor will start only if the
START button is pressed.
Ventilation must occur as illustrated below.
5.6.2. It is of important that the compressor works with all the
panels firmly closed. The failed observance of these
and the following standards may lead to accidents that could
cause personal injury and serious damages to the compressor
or its equipment.
5.6.3. INITIAL START UP PROCEDURE
Before initially starting the compressor (or following extended
inoperative periods), start the machine intermittently by
pressing the START & STOP buttons on and off for 3 or
4 seconds. After this it is advisable to run the compressor for a
few minutes with the air outlet tap open. Gradually shut-off
the air tap and load to maximum pressure, checking if the
inputs on each phase of the power supply are within the limits
and also if the pressure switch trips. At this stage, when the
max pressure value is achieved, the pressure switch will initiate
idle running for 2 minutes. After this time, if there is no air
consumption, the compressor will stay in the stand-by condition.
Discharge the air from the tank until the starting pressure is
reached (2bar difference compared to maximum pressure).
Shut-off the air outlet tap and wait for the pressure switch to
trip, which will shut-on the intake valve and close the internal
discharge.
Original Language Version SSC12710 & SSC12710D Issue: 3 - 23/02/12

5.7. STOPPING THE COMPRESSOR IN AN EMERGENCY.
Press the emergency stop button on control panel (see section
5.2.) to stop the compressor immediately.
5.8. MANUFACTURER'S
CALIBRATION AND SETTINGS.
The minimum setting pressure is:
Mod/bar set.pressure
10 8
Note! By disconnecting the
power supply from the external
switch the compressor is
completely without power.
The thermal relay is set according
to the following parameters
for the Star/Delta version:
Power HP: (10)
Rated voltage 380/415V: (7,5 A)
Disconnect the electrical power supply from the
compressor before opening the electrical cabinet.
The setting of trip switch 1 must not differ from the specification
above; if the trip switch should trip, check the input of the motor
of the compressor, the voltage on the line terminals L1+L2+L3
during operation and the power connections inside the electric
control panel and of the terminal board of the motor and
compressor.
5.9. CORRECT COMPRESSOR PERFORMANCE.
For the correct operational performance of the machine under
full continuous load at the maximum working pressure, ensure
that the temperature of the work area in a closed room does
not exceed +45°C. It is advisable to use the compressor with a
maximum service of 80% in one hour under full load in order to
ensure the maximum efficiency of the product.
6.2.2. The dryer comes provided with all necessary control, safety
and adjustment devices, therefore no auxiliary devices are
needed. A system overload not exceeding the maximum
operative limits can worsen the operational performance of
the dryer (e.g. high dew point), but it will not affect its safety.
The user must provide the dryer with a line protection and a
ground terminal.
6.2.3. Use of the machine in safe conditions
This system has been designed and manufactured in
compliance with the European safety directive in force,
therefore any installation, use and maintenance operations
must be performed following the instructions contained in this
manual. Any installation, use and maintenance operation
requiring to access the internal parts of the dryer must be
performed by qualified personnel. The manufacturer will not be
liable in case of different uses or non-compliance with those
detailed in this manual.
6.2.4. Control panel
The dryer is provided with an electronic system for parameter
modification. Reset operations can be performed by means of
the digital control panel located on the front of the dryer. The
control panel illustrated in fig.12 is composed of 5 keys (ON/
OFF, TEST, SET, DOWN and UP) and a 3 digit display, with
three signalling LEDs indicated by icons.
 WARNING! Ensure that you have read, understood and
apply Section 1 safety instructions.
6.2. PREPARING TO USE THE DRYER.
6.2.1 Functional description
This compact drying system, having a refrigeration cycle, has
been designed for the cost effective elimination of the
condensate contained in compressed air by cooling it down
to approximately +3°C. The operational principle of the dryer
is shown in the diagram below. The air output is virtually
humidity free, and the condensate collected in the separator is
discharged through appropriate draining devices. Before exiting
the dryer, treated air is counter current pre-heated by the air
entering the system thus avoiding condensation on the external
surfaces of the tubing and resulting in a more compact unit.
6. USING THE DRYER - SSC12710D ONLY
fig.12
Original Language Version
6.1. ELECTRICAL SAFETY.
 IMPORTANT! The dryer mains cable is supplied without a
plug. Fit a UK 13Amp plug as described below.
Refer also to sections 1.1.1 to 1.1.5 in the compressor
electrical safety section.
6.1.1. Important: Ensure that the voltage marked on the appliance
matches the power supply to be used and that the plug is fitted
with the correct fuse - see fuse below.
a) Connect the GREEN/YELLOW earth wire to the earth
terminal ‘E’.
b) Connect the BROWN live wire to the live terminal ‘L’.
c) Connect the BLUE neutral wire to the neutral terminal ‘N’.
d) After wiring, check that there are no bare wires, that
all wires have been correctly connected, that the cable
outer insulation
extends beyond the
cable restraint and
that the restraint is
tight. Double
insulated products,
which are always
marked with this
symbol, are fitted
with live (brown) and
neutral (blue) wires
only. To rewire,
connect the wires as
indicated in diagram.
DO NOT connect
either wire to
the earth terminal.
6.1.2. DO NOT pull or carry the appliance by the power cable.
6.1.3. DO NOT pull the plug from the socket by the cable.
6.1.4. DO NOT use worn or damaged cables, plugs or connectors.
Immediately have any faulty item repaired or replaced by a
qualified electrician.
FUSE RATING 13AMP
SSC12710 & SSC12710D Issue: 3 - 23/02/12

6.3. REMOTE SIGNALLING ALARM.
The dryer control board is equipped with a digital output for the
remote signalling alarm. This digital output is controlled by a
relay configured as normally open. When an alarm is detected,
this relay closes a circuit.
Proceed as follows to activate a remote alarm output:
6.3.1. The user must provide a signaller in compliance with output
relays electrical features (solenoid coil, light bulb, acoustic
signaller, ...).
6.3.2. Disconnect the dryer from electrical power supply, remove
cover and left side panel.
6.3.3. Connect the signaller to the terminal blocks (See below).
The activation of the above function is at the user’s
discretion. The user must purchase all necessary
installation material. Any operation which needs
access to the dryer must be carried out by qualified
personnel.
6.4. BEFORE DRYER START UP.
Before starting the machine, make sure that all operating
parameters correspond to the nominal data outlined in this
instruction. The dryer is supplied already tested and preset for
normal operation, and does not require any calibration.
Nevertheless, it is necessary to check the operating
performance during the first working hours.
6.2.4 Control panel (continued)
NOTE: when the controller is in OFF position, some parts of
the system remain live. Therefore, for safety purposes,
disconnect the electrical power before performing any
operation on the machine.
6.2.5. CONDENSATE DISCHARGE PARAMETERS PROGRAMMING.
Push the SET key for 10 seconds to enter the parameters
configuration menu. The display will show in sequence the set
point value, the code of the first modifiable parameter (C8 and
its value). Only if strictly necessary, use the UP and/or DOWN
keys to change the displayed parameter value. Press the SET
key to store the previously changed parameter value or to
browse the parameters without changing them. 15 seconds
after the last performed operation, the controller will return
automatically to the normal operation mode.
CODE CAUSE OUTPUTS ACTIONS
HtA High Dew – point
value
(delayed alarm).
Alarm output ON.
Refrig. Compressor
output OFF. Fan
output ON. Discharge
cycle standard.
Resettable by
switching off the
control board when
dew-point returns to
preset range.
If it persists call our
Service Centre.
Ht2 Very high Dew –
point value
(immediate alarm).
LtA Low Dew – point
value.
Alarm output ON
Refrig. Compressor
output OFF.
Fan output OFF.
Discharge cycle
standard.
Automatic reset
when
dew-point returns to
preset range.
If it persists call our
Service Centre.
PF1 Interruption or short
circuit on the PTC
probe input line.
Alarm output ON.
Refrig. Compressor
output OFF.
Fan output OFF.
Discharge cycle
standard.
Resettable by
switching off the
control board and
replacing the faulty
probe.
Call our Service
Centre.
ESA Energy saving
mode activated.
Alarm output OFF.
Refrig. Compressor
output OFF.
Fan output OFF.
Discharge cycle
standard.
No action
necessary.
Automatic Reset.
ES2
ASt Series of alarms
very close to each
other.
Alarm output ON.
Refrig. Compressor
output OFF.
Fan output ON.
Discharge cycle
standard.
Call our Service
Centre.
NOTE: Changes entered for timing values will be effective only after
exiting the programming, while changes to other variables will be
immediately effective. Please remember that eventual changes to the
configuration parameters of the machine could negatively affect its
efficiency. Thus, changes have to be arranged in collaboration with
the manufacturer.
6.2.6 ANOMALY/FAULT WARNING
The controller is capable of recognizing certain types of
anomalies/faults occurring in the drying circuit. In such cases,
an alarm message will blink on the display, alternated to the
current dew – point value.
Note: PF1 has priority over all other alarm messages.
Original Language Version
This display means the unit is ON with low load.
This display means the unit is ON with normal load.
This display means the unit is ON with normal - high load.
This display means the unit is ON with high load.
LED LED Status - ON Compressor energised
LED Status 'Blinking' Programming mode activated
LED LED Status - ON Condensate drain energised
LED LED Status - ON Speed of the fan = 100%
LED Status 'Blinking' Speed of the fan < 100%
ON / OFF: Push for 3 seconds to switch ON or OFF. When the unit is
OFF the display shows 'OFF'.
TEST - To activate a condensate drainage cycle, push for 3 seconds
during normal operation.
SET - When pushed and released during normal operation it displays
the set point value (decimal). When pushed for 10 seconds it gives
access to the condensate drain parameters programming menu (C8 &
C9). Having set new configuration values, push again to store them.
UP - When pushed whilst setting the set point or configuration values, it
increases the displayed value by one unit per second, during the first 10
seconds then by 0.1 of a second thereafter.
DOWN - When pushed whilst setting the set point or configuration
values, it decreases the displayed value by one unit per second, during
the first 10 seconds then by 0.1 of a second thereafter. When pushed
for ten seconds during normal operation, it starts an automatic test cycle
of the controller.
PARAMETER DESCRIPTION RANGE SET
VALUE
C8 Delay between condensate
discharges
1 ÷ 999
(min)
1
C9 Time required for condensate
discharge
1 ÷ 999
(sec)
1
WARNING FOR USERS:
IT’S FORBIDDEN TO MODIFY THE OTHER CONFIGURATION
PARAMETERS OF THE ELECTRONIC CONTROLLER WITHOUT
THE SERVICE CENTRE’S AUTHORIZATION AND
COLLABORATION.
SSC12710 & SSC12710D Issue: 3 - 23/02/12

TROUBLESHOOTINGNG
PROBLEM POSSIBLE CAUSE AND REMEDY
● Luminous
switch /
Control panel
display OFF.
1. Check if the line is electrically powered.
2. Check cabling.
3. Check the electronic control board; if the
trouble persists, replace it.
● The
compressor
will not start.
1. Check cabling and control.
2. Activation of compressor’s internal thermal
protection; wait one hour and check again. If the
fault persists: stop dryer and call a refrigeration
engineer.
3. Check the compressor’s electrical components.
4. Short circuit in the compressor. Replace it.
● The fan
doesn’t work.
1. Check the protection fuse (if present), and
replace it if necessary.
2. Check cabling.
3. Check the electronic control board; if the trouble
persists, replace it.
4. Short circuit in the fan. Replace it.
● Condensate
drain absent
(no water or
air).
1. Check cabling.
2. Drainage system pre-filter is dirty, clean it.
3. Drainage solenoid valve coil is burnt out,
replace it.
4. Drainage solenoid valve clogged/jammed, clean
or replace it. (fig.13)
5. Check the electronic card, if the trouble
persists, replace it.
6. The temperature on the display of the control
panel is lower then the nominal value, call a
refrigeration engineer.
● Air flows
continuously
through the
condensate
drainage.
1. Drainage solenoid valve jammed, clean or
replace it. (fig.13)
2. Verify the condensate drainage times.
3. Check the control. If the trouble persists,
replace it.
● Water in the
pipes
downstream of
the dryer.
1. The dryer is off; turn it on.
2. Close by-pass (if present).
3. Condensate drainage absent; see specific
section.
4. The temperature on the control panel display is
higher than the nominal value; see specific section.
● The
temperature
on the control
panel display
is higher than
the nominal
value.
1. Check if the compressed air inlet/outlet is
connected properly.
2. The compressor doesn’t start; see specific
section.
3. The fan doesn’t turn; see specific section.
4. The flow rate and/or temperature of the air
entering the dryer are higher than the nominal
values; restore the nominal conditions.
5. The ambient temperature is higher than the
nominal values; restore the nominal conditions.
6. The condenser is dirty; clean it.
7. Condensate drain absent (no water nor air);
see specific section.
8. Check if the temperature control probe in the
evaporator is positioned improperly or faulty.
9. Gas leakage in the refrigerating circuit: stop
dryer and call a refrigeration engineer.
10. Check cabling.
● The dryer
does not let
compressed
air flow
through.
1. Check if the compressed air inlet/outlet is
connected properly.
2. The temperature on the control panel display is
lower than the nominal value; call a refrigeration
engineer.
3. Check if the temperature control probe in the
evaporator is positioned improperly or faulty.
4. Check if the connecting tubing is clogged.
5. Check if by-pass (if present) is installed
properly.
6. Check electronic control board. If the trouble
persists, replace it.
fig.13
Original Language Version
6.5. DRYER START UP.
6.5.1. The operations specified below must be performed after the
first start up and at each start up after a prolonged inactive
period of time due to maintenance operations, or any other
reason.
6.5.2. Make sure that all instructions contained in chapters
INSTALLATION SITE and INSTALLATION have been
adhered to.
6.5.3. Check if by-pass is locked properly (if fitted).
6.5.4. Activate current supply and press the ON/OFF switch on the
control panel for at least 1 second.
6.5.5. Wait 5 to 10 minutes until machine has achieved its standard
operating parameters.
6.5.6. Slowly open the air outlet valve and successively open the air
inlet valve.
6.5.7. If existent, close the by-pass.
6.5.8. Check if the condensate drainer is working properly. Check if
all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power
supply, use ON/OFF key to stop the dryer. Wait 10 minutes
before switching the dryer on again, in order to allow freon
pressure re-balance.
6.6. DRYER MAINTENANCE.
Before attempting any maintenance operation, make sure that:
a) No part of the system is under pressure.
b) No part of the system is electrically powered.
6.6.1.WEEKLY OR EVERY 40 HOURS OF OPERATION
Verify the temperature on the control panel display.
Visually check if the condensate is drained.
6.6.2.MONTHLY OR EVERY 200 HOURS OF OPERATION
Clean the condenser with a compressed air jet, taking care not
to damage the cooling battery aluminium wings.
At the end of the above mentioned operations, check if the
dryer is working properly.
6.6.3. YEARLY OR EVERY 2000 HOURS OF OPERATION
Check if the flexible tube used for condensate drainage is
damaged and replace it if necessary.
Check if all connecting pipes are properly tightened and fixed.
At the end of the above mentioned operations, check if the
dryer is working properly.
6.7. TROUBLESHOOTING.
NOTE: FOLLOWING CONDITIONS ARE NORMAL
CHARACTERISTICS OF OPERATION AND NOT FAULTS:
• Variable speed of the fan.
• Visualization of message ESA in case of operation without load.
• Visualization of negatives values in case of operation without load.
Troubleshooting and eventual control and/or maintenance
operations must be performed by qualified personnel.
For maintaining the refrigerating circuit of the machine, contact
a refrigeration engineer.
IMPORTANT: The temperature control probe is extremely
delicate. DO NOT remove the probe from its position. In case of
any faults, please contact your Service Centre.
SSC12710 & SSC12710D Issue: 3 - 23/02/12

 WARNING! Ensure that you have read, understood and
apply Section 1 safety instructions.
7.1. MAINTENANCE SCHEDULE TABLE.
7.1.1. Before performing any jobs within the sound-proof
cabinet, ensure that: The main line switch is turned off
(position “0”) The compressor is disconnected from the
compressed air system and all the pressure has been
released from the compressor and internal pneumatic
circuit.
7.1.2. Weekly: it is advisable to inspect the compressor, paying
special attention to oil leaks and scale due to settled dust and
oil.
7.1.3. Note! If the compressor is used for more than 3000 hours/
year the tasks indicated below are to be performed more
frequently.
7. COMPRESSOR MAINTENANCE
Interval
(hours) TASKS TO BE PERFORMED See section
Weekly
Check if the filters of the electric cabinet are clogged
Check if the anti-dust pre-filter is clogged 7.8
Drain condensate on a weekly basis.
500
hours
after
first
start
Change oil and oil filter. 7.2
& 7.3
Check the electrical connections and tighten if necessary
every
2500
hours or
at least
every
year
Replace the oil filter cartridge 7.3
Replace the oil separator filter cartridge 7.4
Replace the air filter cartridge 7..5
Check the transmission 7.6
Clean the air/oil radiator. 7.9
Check filters in electrical cabinet and replace if
necessary
Clean inverter dissipator (if equipped)
Check the safety valve
Check the electrical connections and tighten if necessary
Change oil 7.2
every
7500
hours
Check the hydraulic seals
Overhaul the suction valve
every
12500
hours
Check the hoses and replace if necessary
Overhaul oil separator flange
Grease the minimum pressure valve
Replace Fluorflon pipes 6x4 and 10x10
Replace the screw oil seal
Replace the screw oil seal
Replace the bearings of the radiator fan motor (to be
done by service centre).
Replace the delivery OR flange
Clean the compressor externally when not in use
every
20000
hours
Replace inverter fan (if equipped)
Replace the bearings of the screw (to be done by
Technical Service centre)
7.2 CHANGING THE OIL.
7.2.1 Change the oil following the initial 500 hours of use and then
every 2500 hours thereafter, or at least once a year.
In case of infrequent use (only a few hours of duty per
day) you should change the oil every 6 months.
7.2.2 Referring to fig.14 identify the oil filler cap (1) and the oil drain
tap (2). Unscrew the oil filler cap (1) and put to one side.
Ensure that the oil drain tap is shut off (i.e. tap handle at 90° to
the body of the tap). Have to hand a pipe and container ready
to collect the oil.
7.2.3. Unscrew the hex nut from the end of the oil drain tap. Screw in
the tail piece attachment supplied with the compressor. Push
the pipe onto the tailpiece and ensure that the other end is in
the collection container. Open the drain tap fig.14-2. Once
emptied, close tap, remove the tail piece attachment and
screw the hex nut (with seal) back into place.
7.2.4. Fill-up with oil as shown in fig.15 until the level is halfway up
the sight glass. See fig.15-3. Screw oil filler cap (1), with its
seal, back into the oil filler hole.
7.2.5. Once the oil and oil filter have been changed follow the initial
start up procedure by pressing the START & STOP buttons on
and off for 3 or 4 seconds to start the machine intermittently.
After this, leave the compressor to run for roughly 5 minutes
then turn it off and check the oil level again. Check the oil
level once a month.
7.2.6. Never mix different types of oil, therefore always ensure that
the circuit is completely empty before filling-up with oil. Each
time the oil is changed the filter is also to be replaced.
fig.15
Original Language Version
fig.14
7.2.7. Recommended oil.
Mineral oil : Grade 46st
Part No. Qty. Description
SCPO1S 1ltr Mineral oil.
SCPO5 5ltr Mineral oil.
SSC12710 & SSC12710D Issue: 3 - 23/02/12

7.3. REPLACING THE OIL FILTER.
Replace the oil filter after the first 500 hours of use then every
2500/3000 hours and in any event, each time the oil is
changed. Refer to fig.16.
7.3.1. Loosen and remove the four bolts retaining the front panel
using a 3mm hex key. Lift off the panel and put to one side.
7.3.2. Loosen the oil filter using a suitable wrench. Unscrew the filter
and lift off. Lubricate the sealing gasket on the new filter and
screw into place. Once the sealing gasket has made contact
with the housing tighten a further ¾ of a turn. Refit cabinet front
panel.
7.4. REPLACING THE OIL SEPARATOR FILTER.
7.4.1. Refer to fig.16. Loosen and remove the four bolts retaining
the front panel using a 3mm hex key. Lift off the panel and put
to one side.
7.4.2. Loosen the oil separator filter using a suitable wrench.
Unscrew the filter and lift off. Lubricate the sealing gasket on
the new filter and screw into place. Once the sealing gasket
has made contact with the housing tighten a further ¾ of a
turn. Refit cabinet front panel.
7.7. REPLACING THE DRIVE BELT.
7.7.1 Loosen and remove the four bolts retaining the front panel
using a 3mm hex key. Lift off the panel and put to one side.
7.7.2 Referring to fig.19, turn the nut 'A' to slacken the belt. Slide the
belt out, replace it with a new one and tighten as described in
the previous section.
7.5. REPLACING THE AIR FILTER CARTRIDGE.
7.5.1. Referring to fig.16. Loosen and remove the four bolts retaining
the front panel using a 3mm hex key. Lift off the panel and put
to one side.
7.5.2. Turn the top of the filter housing anti-clockwise and lift off. Lift
out the old air filter, clean out the air filter housing and replace
the air filter with a new one. Ensure the new filter is correctly
seated within the housing. Place the top of the filter housing
onto the housing itself in the same orientation that it was
removed and turn clockwise to lock in place. See fig.17. Refit
cabinet front panel.
7.6. CHECKING DRIVE BELT TENSION.
7.6.1 Every 500 hours of use it is advisable to check and if
necessary tighten the belt.
7.6.2 Loosen and remove the four bolts retaining the front panel
using a 3mm hex key. Lift off the panel and put to one side.
7.6.3 Using a dynamo meter apply a perpendicular force at point 'Y'
of between 25N and 35N (see fig.18).
fig.17
7.8. DRAINING THE CONDENSATE.
7.8.1 Drain the condensate from the air tank on a weekly basis using
the tap outlet secured to the foot of the tank. See fig.20. Attach
a suitable tailpiece and drainage tube to thread 'X'. Direct the
tube into a suitable container and open the drainage tap.
7.8.2 The condensate drained is considered as a polluting mix that
must be disposed of according to local authority regulations.
Ideally the condensate should be passed through special
water/oil separators prior to disposal.
fig.19
7.9. CLEANING THE AIR/OIL RADIATOR.
Clean the radiator on a weekly basis to remove dust and
impurities. Using a compressed air gun on a low pressure
setting, blow from the inside outwards making sure that no dirt
settles inside the compressor. See fig.21.
fig.20
Original Language Version
fig.18
fig.16
SSC12710 & SSC12710D Issue: 3 - 23/02/12
The belt must give by roughly 5mm. Refer to fig.19, turn the nut
'A' to tighten the belt. Apply a maximum force 40N. An
excessive force could damage the bearings in both the
motor and the screw unit!

7.10. ELECTRIC MOTOR MAINTENANCE.
The bearings of the electric motor are pre-lubricated and
are maintenance free. In normal conditions (ambient
temperature up to 30°C) replace the motor bearings after
every 12500 hours of use. In more adverse conditions
(ambient temperature up to 40°C) replace the motor
bearings after every 8000 hours of use. The bearings must be
replaced in any event after every 4 years.
fig.21
ALARM CODE CONDITIONS
Alarm
code.
Problem Causes Solutions
AL0
Machine
stopped –
temperature
probe
anomalies.
Damage of
temperature
probe or
electric
cable.
Disconnect from the main power,
replace the temperature probe and
check the cables.
To restart the compressor press the
RESET button on the main board.
AL1
The
machine
stops, as
the oil
alarm has
triggered.
Excessive
temperature
of air/ oil
mix outlet
from the
screw
(105°C).
Check the oil level. Check if the
radiator is clean.
To restart the compressor press the
RESET key on the main board.
AL2
Machine
stopped:
low
temperature
thermostat
tripped.
Ambient
temperature
below 0°C.
To start the machine again ensure
the compressor installation
environment guarantees a minimum
ambient temperature above - 5°C.
To restart the compressor press the
RESET button on the main board.
AL3
Machine
stopped: the
compressor
will not start.
Emergency
button
pressed.
Turn the emergency button
clockwise to unlock it. Press the
reset button on the control panel.
Wrong
rotation
direction.
Switch off power to the compressor
and reverse two phases of the power
cable on the terminals for connection
of the cable line.
AL4
Machine
stopped-
motor
thermal
protection
switch
tripped.
The thermal
protection
switch of the
motor has
tripped.
Check if the electrical power supply
is correct, check if the three power
supply phases are more or less at
the same value. Check if the cables
are firmly fitted to the terminal board.
Check if the electrical cables have
melted. Check if the fan in-take grill
is clean or obstructed in some way.
(paper, leaves, rags).
To restart the compressor press the
RESET key on the main board.
Machine
stopped:
temperature
thermostat
tripped.
The internal
thermal
protection
switch of the
fan motor
has tripped.
Check if the electrical power supply
is correct, check if the three power
supply phases are more or less at
the same value. Check if the cables
are firmly fitted to the terminal board,
check if the electrical cables have
melted. Check if the fan intake grill is
clean or obstructed in some way.
(paper, leaves, rags).
To restart the compressor press the
RESET key on the main board.
Compressor
is running
but fails to
load.
The suction
valve has
failed to
open
Check if the pressure probe is
working correctly and also if the
commanding solenoid valve (NC
solenoid valve) is working regularly.
AL5 Control panel internal malfunction. (See section 5.3.9)
AL6 Maintenance required. (See section 5.3.10)
7.11. DIAGNOSING THE ALARM CODE STATUS/ANOMALIES/
FAULTS.
Before doing any job on the compressor ensure that:
• The main ON/OFF switch is turned to the OFF position (“0”)
• The EMERGENCY/STOP button is pressed down into the
security position.
• The compressor is shut-off from the compressed air system.
• The compressor and the internal pneumatic circuit are
completely de-pressurised.
If you are unable to rectify the anomaly encountered on your
compressor contact your nearest authorised service centre.
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY: Guarantee is 12 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.
01284 757500
01284 703534
[e-mail]
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park,
Bury St. Edmunds, Suffolk,
IP32 7AR
www.sealey.co.uk
Web
email
IMPORTANT WARNING - Air contaminants taken into
the compressor will affect optimum performance.
Example: Body ller dust or paint over-spray will
clog the pump intake lter and may cause internal
damage to pump/motor components.
Please note that any parts damaged by any type of
contamination will not be covered by warranty.
Original Language Version
Parts support is available for this product. To obtain a parts listing and/or diagram, please log on to
www.sealey.co.uk, email [e-mail] or phone [phone].
SSC12710 & SSC12710D Issue: 3 - 23/02/12