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SMART GUARD®Pro
Version: 0803
INDEX
Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
General safety instructions
Top inlet installation instructions (part 1 of 2)
Top inlet installation instructions (part 2 of 2)
Bottom inlet installation instructions (part 1 of 2)
Bottom inlet installation instructions (part 2 of 2)
General drain description and installation notes
Maintenance and troubleshooting
Technical specifications
Service chart
SAFETY and PROPER USAGE
To ensure safe and enduring performance of this product, you must comply strictly with the instructions enclosed herein. Non-compliance
with instructions or improper handling of the product will void your warranty! This product is designed for use exclusively with types of
fluids or gasses as stated in its documentation. Usage of this product in conditions not specified in the product documentation or contrary to
the instructions hereby provided is considered IMPROPER. The manufacturer will not be held liable for any damages resulting from
improper use of the product.
ATTENTION
-
Observe valid and generally accepted safety rules when planning, installing and using this product.
Take proper measures to prevent unintentional operation of the product or damage to it.
Do not attempt to disassemble this product or lines in the system while they are under pressure.
Always turn off the voltage supply before working on the system.
It is important that personnel use safe working practices and observe all regulations and legal requirements for safety when operating this
product. When handling, operating or carrying out maintenance on this product, personnel must employ safe engineering practices and
observe all local health & safety requirements & regulations. International users refer to regulations that prevail within the country of
installation. Most accidents which occur during the operation and maintenance of machinery are the result of failure to observe basic safety
rules or precautions. An accident can often be avoided by recognising a situation that is potentially dangerous. Improper operation or
maintenance of this product could be dangerous and result in an accident causing injury or death. The manufacturer cannot anticipate every
possible circumstance which may represent a potential hazard. The WARNINGS in this manual cover the most common potential hazards
and are therefore not all-inclusive. If the user employs an operating procedure, an item of equipment or a method of working which is not
specifically recommended by the manufacturer he must ensure that the product will not be damaged or made unsafe and that there is no risk
to persons or property.
PLEASE NOTE: YOUR WARRANTY WILL BE INVALIDATED IF THE EQUIPMENT HAS NOT BEEN INSTALLED OR
MAINTAINED IN ACCORDANCE WITH THESE INSTRUCTIONS.
SAFETY
Switch off the voltage supply before
installation or maintenance is carried out!
Depressurise the system before installation or
maintenance is carried out!
1
TOP INLET INSTALLATION INSTRUCTIONS (part 1 of 2)
IMPORTANT NOTICE
Before installing this product make sure
it complies with your request and
that it suits your application!
Unpack the unit and visually inspect for
any transport damage incurred after
leaving our factory
Install the specially designed ballvalve with
strainer to the ½” connection.
Locate a suitable ½” connection on your
pressure vessel, dryer, filter or compressor
NB: Ensure that the orifice of the BVS is ½”
NPT
Make sure the drain gets installed upright!
Make sure you only use straight
threaded adapters when installing
drain.
Do not install sideways, upside down or at an angle
2
TOP INLET INSTALLATION INSTRUCTIONS (part 2 of 2)
IMPORTANT NOTICE
Before installing this product make sure
it complies with your request and
that it suits your application!
Install the drain directly under the ballvalve
and strainer. The bottom condensate inlet
of the drain, remains closed.
Connect
outputinspect
of the drain
Unpackthe
thecondensate
unit and visually
for
to
a
condensate
cleaner.
any transport damage incurred after
You can do this
withour
flexible
tubing with an
leaving
factory
inner diameter of 4 mm or greater
Connect the other side of the flexible tubing
Locatetoa suitable
½” connection
your condensate
cleaner.on your
pressure vessel, dryer, filter or compressor
Connect the power cable to a suitable
power source.
Install the specially designed ballvalve with
strainer to the ½” connection.
NB: The PURO range of condensate cleaners is
recommended
thethat
correct
voltageofisthe
specified
NB:Note:
Ensure
the orifice
BVS is ½”
on the drain.
Optional ALARM cables are available!
NPT
Make
sureisthe
gets
installed
upright!
The
drain
nowdrain
at full
system
pressure
and
will discharge any condensate it receives
from your compressed air system.
The drain function is automatic and
continuous.
You can press the TEST button
to check the drains functionality.
you only by
useturning
straightthe red
SlowlyMake
opensure
the ballvalve
threaded
adapters
whenthe
installing
handle and
pressurise
system
drain.
3 Do not install sideways, upside down or at an angle
BOTTOM INLET INSTALLATION INSTRUCTIONS (part 1 of 2)
4
BOTTOM INLET INSTALLATION INSTRUCTIONS (part 2 of 2)
Connect an air bleed line from the top
condensate inlet to a higher situated
connection point from your compressed air
system. It is recommended that you install a
ballvalve for maintenance purposes.
Install the drain directly on to the ballvalve
and strainer by using the bottom
condensate inlet.
The top condensate inlet will be used
as an air bleed.
Connect the power cable to a
suitable power source.
Connect the condensate output of the drain
to a condensate cleaner.
Note: the correct voltage is specified
on the drain.
NB: The PURO range of condensate cleaners is
recommended
You can do this with flexible tubing with an inner
diameter of 4 mm or greater
Optional ALARM cables are available!
The drain is now at full system pressure and
will discharge any condensate it receives
from your compressed air system.
The drain function is automatic and
continuous.
You can press the TEST button
to check the drains functionality.
Slowly open both of the ballvalves and
pressurise the system.
Press the test button to unlock any air locks.
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DESCRIPTION OF NORMAL OPERATION
Condensate generated by the Compressed air system enters the drain bowl through the inlet port. Sensors located outside the drain bowl
reservoir constantly monitor the liquid volume inside the reservoir. When the liquid volume reaches a predetermined volume, the solenoid
valve is opened. Liquid is discharged from the drain bowl reservoir, under pressure, through the outlet port. The operation is automatic and
continuous.
OPERATING THE DRAIN





Ensure drain is installed in accordance with this manual.
Switch on power supply. LED will indicate power on.
Ensure air pressure is between minimum 0 bar g (0 psi g) and maximum 16 bar g (230 psi g).
Test solenoid valve operation by pressing the test button for minimum 2 seconds.
Drain operation will now be fully automatic.
INSTALLATION NOTES
A. UNPACKING
Although the manufacturer takes every precaution with packaging, it is advisable after carefully removing the product from it's box and
packing material to carry out a thorough visual inspection for any sign of transit damage incurred after leaving our factory.
B. DIRECT CONNECTION TO THE COMPRESSED AIR SYSTEM OR PRESSURE VESSEL
· Make sure that no solid matter (e.g. sealing compound residue) gets into the unit during the installation.
· Make sure that the pipeline is thoroughly clean.
· Use quality sealing compound only!
· Install a ballvalve strainer in front of the unit
· Use a proper tool for fixing the unit to your pipe work! Never use the unit as a lever.
. The unit can only be mounted in an upright position.
. Incorrect installation can prevent air from escaping the drain bowl, causing an air-lock.
. Ensure inlet pipe work / fittings are vertical to prevent air locking.
. Ensure ALL inlet pipe work/ fittings have a minimum internal diameter of 10 mm or greater to prevent air-locking.
. Ensure ALL outlet pipe work / fittings have a minimum internal diameter of 4 mm or greater.
. One drain is required for each pressure vessel being drained.
. Only use the correct threaded adapters.
C. POWER SUPPLY / ELECTRICAL CONNECTION
Power Supply
Please ensure voltage of drain model supplied correctly matches the supply voltage of the installation site. (Refer to the label on the drain).
The method of electrical connection and cable used should be appropriate for the regulations and conditions that prevail in the country of use.
®
The SMART GUARD Pro is pre-wired, the wire colours are:
BROWN
=
Phase
BLUE
=
Phase
YELLOW/GREEN =
Earth (Must be connected)
BLACK (2x)
=
Alarm Relay (OPTIONAL)
The unit can also be standard equipped with a wall plug for North American.
The optional ALARM feature can be connected to any alarm device with a voltage range of 5 to 230 VAC or DC
D. DISPOSAL OF CONDENSATE
Condensate produced by the compressed air system should be disposed of in a responsible manner and in accordance with laws and
regulations that prevail in the country of installation. We suggest you install a PURO Condensate Cleaner after each compressed air draining
point (please refer to the PURO Condensate Cleaner installation manuals for more details).
6
MAINTENANCE
Depressurise the unit (exhaust all compressed air from unit) and switch off electrical supply before carrying out any work or
maintenance on the unit!
-
Regular maintenance is not required on this product, however it is recommended that you clean internally with the special
maintenance kit brush and externally with a damp cloth at least once a year. DO NOT rinse or wash internal / external
components with solvents. Use maintenance kit.
TROUBLESHOOTING
?
?
Check supply voltage
Check pressure
Check the ballvalves are in the open position
Check the strainer is clean and
not blocked with debris
ANY PROBLEMS? Check the following:





Check installation is in accordance with this manual
Inlet / outlet pipe internal diameter too small causing air-lock or back pressure.
Excessive use of bends / elbows in inlet / outlet pipe work causing air-lock/ back pressure.
Outlet pipe too long / too high causing back pressure.
More than one condensate source connected providing alternative path for condensate.
®
Incorrect installation of the condensate drain may result in condensate carryover from the unit being drained. The SMART GUARD Pro is
volume operated and relies on liquid triggering a transducer interface outside of the drain bowl reservoir. As the condensate enters the drain
bowl reservoir, the air within the reservoir MUST be allowed to escape via the top inlet pipe work (Air bleed). If this air cannot escape due
to narrow inlet pipe work / fittings, long or horizontal pipe work, the drain will fail to operate (this is called an air-lock).
FAULT DIAGNOSIS TABLE
Problem
1. LED is off
2. Air bleed from outlet port
3. Bowl does not seem to fill with condensate, drain does not seem to work due to air locking!
Check
1. Check power supply. Press test button for minimum 2 seconds and observe.
2. Debris trapped under seal. Damage to seal.
3. If you are using the bottom inlet, you must bleed the air thru the top inlet back to your system.
Action
1. Locate and eliminate supply fault.
2. Press and hold the test button to clear (drain valve will open). Replace seal with Service Kit.
3. Make sure you connect the top inlet to a higher point in your system, this will function as an air bleed.
7
TECHNICAL SPECIFICATIONS
INLET & OUTLET CONNECTIONS
VOLTAGE (See label on unit)
MAX. OPERATING PRESSURE
MIN. OPERATING PRESSURE
MAX. OPERATING TEMPERATURE
MIN. OPERATING TEMPERATURE
WEIGHT
CONFORMITY
G1/2” or NPT 1/2”
230V or 115V 50/60Hz (+/-10%)
16 bar
(230 psig)
0 bar
( 0 psig)
50 ºC
(120 ºF)
2 ºC
( 36 ºF)
1,5Kg
( 3 lbs)
CE
IDENTIFY ALL COMPONENTS DIAGRAM:
NB: The top inlet is used as the air bleed should the bottom inlet be applied
8
Service Chart:
DATE DESCRIPTION
NAME/SIGNATURE REMARK
9