Beko BEKOMAT 31U User guide

EN - english
Instructions for installation and operation
Condensate drain
BEKOMAT®31U (BM31U)
01-1607

2 BEKOMAT® 31U
Dear customer,
Thank you for deciding in favour of the BEKOMAT® 31U condensate drain. Please read the installation
and operating instructions carefully before mounting and starting up the BEKOMAT® 31U , and follow
our directions. Perfect functioning of the BEKOMAT® 31U , and thus reliable condensate discharge,
can only be guaranteed when the provisions and notes stipulated here are strictly adhered to.

BEKOMAT® 31U 3
1Pictograms and symbols ........................................................................................................................ 4
2Safety instructions .................................................................................................................................. 4
3Proper use .............................................................................................................................................. 6
4Exclusion from the scope of application ................................................................................................. 6
5Technical data ........................................................................................................................................ 7
6Electrical data ......................................................................................................................................... 8
7Dimension drawing ................................................................................................................................. 9
8Climate zones and performance data .................................................................................................. 10
9Function ................................................................................................................................................ 11
10Installation ............................................................................................................................................ 13
11Electrical installation ............................................................................................................................. 16
12Inspection and maintenance ................................................................................................................ 19
13Troubleshooting and fault elimination .................................................................................................. 22
14Elements and components ................................................................................................................... 23
15Recommended spare parts .................................................................................................................. 23
16Accessories .......................................................................................................................................... 24
17Declaration of conformity ..................................................................................................................... 26

Pictograms and symbols
4 BEKOMAT® 31U
1 Pictograms and symbols
Observe the installation and operating instructions
Observe the installation and operating instructions (on the type plate)
General danger symbol (danger, warning, caution)
General danger symbol (danger, warning, caution) for supply voltage and
supply voltage-carrying plant components
2 Safety instructions
Please check whether or not these instructions correspond to the device type.
Adhere to all advice given in these operating instructions. They include essential information
which must be observed during the installation, operation and maintenance. Therefore it is
imperative for the service technician and the responsible operator / technical staff to read
these operating instructions prior to installation, start-up and maintenance.
The operating instructions must be accessible at any time at the place of application of
the BEKOMAT® 31U .
In addition to these operating instructions, local or national regulations must be complied
with, if necessary.
Make sure that the BEKOMAT® 31U is operated only within the permissible limit values
indicated on the type plate. Any deviation involves a risk for persons and materials, and
may result in malfunction and service failures.
If you have any queries regarding these installation- and operating instructions, please
contact BEKO TECHNOLOGIES GMBH.
Danger!
Compressed air!
Risk of serious injury or death through contact with quickly or suddenly escaping
compressed air or through bursting plant components or plant components which
are not secured.
Measures:
• Do not exceed the maximum operating pressure (see type plate).
• Only carry out service measures when the system is pressureless.
• Use pressure-resistant installation material only.
• The feed pipe must be tubed firmly.
Discharge pipe: short, fixed pressure hose onto pressure-resistant pipe.
• Make sure that persons or objects cannot be hit by condensate or escaping compressed air.

Safety instructions
BEKOMAT® 31U 5
Danger!
Supply voltage!
There is the risk of an electric shock involving injury or death when coming into contact
with non-insulated components carrying supply voltage.
Measures:
• During electric installations, all regulations in force need to be adhered to (e.g. VDE 0100 / IEC 60364).
• When the control unit is open, service and installation works must only be undertaken when the
system is deactivated.
• The removed control unit has no IP degree of protection.
• All types of electrical works must be carried out by authorised and qualified personnel only.
Further safety instructions:
• For installation and operation, the national regulations and safety codes in force
must also be adhered to.
• Do not use the BEKOMAT® 31U in hazardous areas.
• Regarding the inlet screw joints, excessive tightening forces must be avoided.
This applies in particular to conical screw joints.
• The BEKOMAT® 31U will only function when voltage is applied.
• Do not use the test button for permanent drainage.
• Use genuine spare parts only. This is imperative to ensure perfect functioning.
Additional advice:
• The removed control unit has no IP degree of protection.
• During installation, use spanner flat at the feed pipe (wrenchsize SW27) as a back rest.
• The service unit must not be dismantled.
Caution!
Malfunction during operation!
Through incorrect installation and poor maintenance, malfunction may occur at the
BEKOMAT® .
Condensate which is not discharged may cause damage to plants and in production
processes.
r
Measures:
• Condensate drainage which is reliable in performance directly optimises the compressed-air quality.
• To prevent damage and breakdowns, it is imperative to observe the following:
• Exact compliance with the specifications of use and with the performance parameters of
the BEKOMAT®, in connection with the case of application (see "Proper use" section)
• Exact compliance with the installation- and operation instructions in this manual
• Regular maintenance and control of the BEKOMAT® in accordance with the instructions
in this operating manual

Proper use
6 BEKOMAT® 31U
3 Proper use
• The BEKOMAT® 31U is an electronically level-controlled condensate drain for compressed-air plants.
• The device is employed within the permissible performance parameters (see "Technical data").
• The BEKOMAT® 31U is able to drain condensate under operating pressure from the plant components
virtually without compressed-air loss.
• For its function, the BEKOMAT® 31U requires a supply voltage and an operating pressure
(see "Technical data").
• As far as the employment in plants with increased demands on compressed air is concerned
(food industry, medical technology, laboratory equipment, special processes etc.), the operator must
decide on measures for the monitoring of the compressed-air quality. These have an effect on the
safety of the subsequent processes and may prevent damage to persons and plants.
• It is the task of the operator to ensure that the indicated conditions are met during the entire operating
time.
4 Exclusion from the scope of application
• The BEKOMAT® 31U as a condensate drain alone cannot guarantee a defined compressed-air quality,
for this purpose, other additional technical devices are required.
• BEKOMAT® 31U is not suitable for use in plants carrying vacuum or atmospheric ambient pressure
or in ex-areas.
• The BEKOMAT® 31U must not be exposed to permanent direct solar or thermal radiation.
• The BEKOMAT® 31U must not be installed and operated in areas with an aggressive atmosphere.
• The BEKOMAT® 31U is not heatable and, therefore, not suitable for the use in areas where frost
is likely to occur.
• The BEKOMAT® 31U is not suitable for CO2 plants.

Technical data
BEKOMAT® 31U 7
5 Technical data
min./max. operating pressure 0,8...16 bar (12...230 psi)
min./max. temperature +1...+70 °C (+34...+158 °F)
Condensate inflow G ½ (NPT ½) internal
max. screw-in depth 13,5 mm (½")
Condensate outflow G ¼ Ø 8 ... 10 mm hose connector
Condensate oil-contaminated + oil-free
Housing aluminium + plastic, glass fibre-reinforced
Weight (empty) 0.8 kg (1.8 lbs)
This product has been tested to the requirements of CAN/CSA-C22.2 No. 61010-1-12, third edition, inclu-
ding a later version of the same standard incorporating the same level of testing requirements.
Max. performance for the "blue" climate zone – see also Chapter "Climate zones and performance data"
max. compressor performance 2.5 m³/min (87.5 scfm)
max. refrig.-dryer performance 5 m³/min (175 scfm)
max. filter performance 25 m³/min (875 scfm)

Electrical data
8 BEKOMAT® 31U
6 Electrical data
Supply voltage
(see type plate)
95…240 VAC ±10% (50…60 Hz) /100…125 VDC ±10%
or
24…48 VAC ±10% (50…60 Hz) / 18…72 VDC ±10%
Power consumption P = 0.6 ... 3 VA (W)
Recommended
cable-jacket diameter Ø 5.0…10 mm (0.20“…0.39“)
Recommended
wire cross-section
Spring-loaded terminal
0.75...1.5 mm² (AWG 16...20)
Recommended
wire cross-section
Screw terminal
0.75...2.5 mm² (AWG 14...20)
Recommended
stripping of cable jacket ~ 50 mm (~ 1.97")
Recommended
length of the wire end tube
Spring-loaded terminal
~ 8 mm (~ 0.31 inch)
Recommended
length of the wire end tube
Screw terminal
~ 6 mm (~ 0.24 inch)
Protection class IP 67
Overvoltage category
(IEC 61010-1) II
VAC = V alternating current
VDC = V direct current

Dimension drawing
BEKOMAT® 31U 9
7 Dimension drawing

Climate zones and performance data
10 BEKOMAT® 31U
8 Climate zones and performance data
Climate zone
Max.
compressor performance
m³/min.
Max.
dryer performance
m³/min.
Max.
filter performance
m³/min.
green 3,0 6,0 30,0
blue 2,5 5,0 25,0
red 1,5 3,0 15,0
The indicated performance data are based on a moderate climate and apply to Europe, large parts
of Southeast Asia, North and South Africa, parts of North and South America (climate zone: blue).
For dry and / or cool climate (climate zone: green), the following factor applies:
performance in the "blue" climate zone approx. x 1.2
For warm and / or humid climate (tropics; climate zone: red), the following factor applies:
performance in the "blue" climate zone approx. x 0.7

Function
BEKOMAT® 31U 11
9 Function
Via the inlet line (1) the condensate flows into the
BEKOMAT® 31U and accumulates in the housing (2).
A capacitively functioning sensor (3) continuously
registers the filling level and relays a signal to the
electronic control as soon as the container is filled.
The pilot valve (4) is activated and the membrane (5)
opens the outlet line to discharge the condensate (6).
When the BEKOMAT® 31U is empty, the outlet line
is reclosed tightly in time before unnecessary
compressed-air losses occur.
When applying supply voltage, theBEKOMAT® 31U
carries out a self-test.
The LED is lit orange for 1 second; subsequently,
the device changes over to the "ready-to-operate"
state and the LED is lit green.
Ready to operate, voltage is applied.
Test of the valve function (manual drainage):
Press and hold the push-button for approx. 2 s.
Do not use for permanent drainage.
1 2 3
4
4
5
6

Function
12 BEKOMAT® 31U
The BEKOMAT® 31U releases a maintenance
message for a service that is to be carried out.
Depending on the operating mode, a visual
maintenance message (service) is activated
which signalises the replacement of the service unit.
The maintenance message is indicated
by the flashing supply voltage-LED "Power".
The maintenance message is released after
2 x 8.760 h or one million switching cycles.
The maintenance signal is released when
one of these two values is reached.
In the event of a power outage or when the
energy supply is deactivated, the status of
the timer will be maintained.
The activities to be carried out regarding
maintenance are described in the chapter
entitled "Check and maintenance".
Prior to the replacement of the service unit, a reset
needs to be carried out. The control unit is released
by actuating the arresting hook. When removed, the
TEST button must be pressed and held for at least
five seconds.

Installation
BEKOMAT® 31U 13
10 Installation
Danger!
Compressed air!
Risk of serious injury or death through contact with quickly or suddenly escaping
compressed air or through bursting plant components or plant components which
are not secured.
Measures:
• Do not exceed the maximum operating pressure (see type plate).
• Only carry out service measures when the system is pressureless.
• Use pressure-resistant installation material only.
• The feed pipe must be tubed firmly.
Discharge pipe: short, fixed pressure hose onto pressure-resistant pipe.
• Make sure that persons or objects cannot be hit by condensate or escaping compressed air.
Caution!
Malfunction during operation!
Through incorrect installation and poor maintenance, malfunction may occur at the
BEKOMAT® .
Condensate which is not discharged may cause damage to plants and in production
processes.
r
Measures:
• Condensate drainage which is reliable in performance directly optimises the compressed-air quality.
• To prevent damage and breakdowns, it is imperative to observe the following:
• Exact compliance with the specifications of use and with the performance parameters of
the BEKOMAT®, in connection with the case of application (see "Proper use" section)
• Exact compliance with the installation- and operation instructions in this manual
• Regular maintenance and control of the BEKOMAT® in accordance with the instructions
in this operating manual

Installation
14 BEKOMAT® 31U
Note:
It is imperative to observe all hazard statements and warnings listed here.
Please also observe all regulations and notes regarding industrial safety and fire prevention
at the place of installation.
As a matter of principle, only use suitable and appropriate tools and materials in a proper condition.
Do not use aggressive cleaners and improper devices such as high-pressure cleaners.
Please note that condensates may contain aggressive or harmful components. Therefore, skin contact
should be avoided.
Condensate is subject to mandatory waste disposal. As such, it must be collected in suitable containers,
and disposed of or processed properly.
Installation instructions:
• Only the displayed installation position of the
BEKOMAT® (3) is permissible. Never install
in a horizontal or any other tilted position.
• Feed pipe (1) and ball valve (2) at least G½.
• No filter or screen in the inlet line.
• Slope in the inlet line >1%.
• Use ball valves (2) only.
• Operating pressure: min. 0,8 bar (12 psig), max. 16
bar (230 psig). See type plate.
• Short pressure hose (4) fixed
on a pressure-resistant pipe.
• The required minimum pressure increases
by 0,1 bar (1,4 psi) per metre gradient in
the discharge pipe (5).
• Discharge pipe (5) rising by max. 5 m (16,4ft).
• Install manifold (6) ½" with a slope of 1%.
• Introduce the discharge pipe (5)
from the top into the manifold (6).
• Prior to the start-up, always carry out a leak test
and verify the correct engagement of the control
unit.
1 2 3 4 5 6

Installation
BEKOMAT® 31U 15
wrong correct
Pressure differences!
Each condensate accumulation point must be
drained separately.
Continuous slope!
Avoid a water pocket when installing the feed pipe
Deflector area!
If drainage is to be carried out directly from the pipe,
deflection of the air flow will be useful.
Ventilation!
If the slope in the inlet line is not sufficient or if any
other inflow problems occur, a venting line needs
to be installed.

Electrical installation
16 BEKOMAT® 31U
11 Electrical installation
Danger!
Supply voltage!
There is the risk of an electric shock involving injury or death when coming into contact
with non-insulated components carrying supply voltage.
Measures:
• During electric installations, all regulations in force need to be adhered to (e.g. VDE 0100 / IEC 60364).
• When the control unit is open, service and installation works must only be undertaken when the
system is deactivated.
• The removed control unit has no IP degree of protection.
• All types of electrical works must be carried out by authorised and qualified personnel only.
Note:
1.Read the permissible supply voltage on the type
plate and make sure this voltage is observed.
2. For the supply voltage, a reliably accessible
separator must be provided close-by
(e.g. power plug or switch), which separates
all current-carrying conductors.
3. At a low voltage supply (< 50 VAC / < 75 VDC),
only use a protective extra-low-voltage.
4. Carry out installation in accordance with
VDE 0100 / IEC 60364.
5. Observe the terminal assignment.
6. Do not install when the device is energised.
7. Unscrew the screws (1) and remove
the upper part of the cover (2).
8. Unscrew the threaded cable connection (3),
remove the plug (if there is one), and lead
the cable (4) for the power supply through.
9. Connect the cable (4) with terminals X1 (1.1, 1.2)
(5).
10. Install the cables as shown (see also
terminal assignment in the following text).
11. Tighten the threaded cable connection (3)
with a slightly sealing effect.
12. Put on the upper part of the cover (2)
and tighten the screws (1) fingertight.
X1.2 X1.1
N/- L/+
1
2
5
3
4

Electrical installation
BEKOMAT® 31U 17
Terminal assignment supply voltage (operating voltage)
X 1 Power supply
• X 1.1 L/+
• X 1.2 N/-
L = Outer conductor
N = Neutral conductor
L/+
N/-
phase neutral
1.1 1.2
Terminal assignment low voltage (operating voltage)
X 1 Power supply
• X 1.1 L/+
• X 1.2 N/-
L/+
N/-
power power
1.1 1.2

Electrical installation
18 BEKOMAT® 31U
Note:
At a low voltage supply (< 50 VAC / < 75 VDC), only use a protective extra-low-voltage.
Tighten the threaded cable connection with a slightly sealing effect.
Electric diagram
+24 VDC
+ 5 VDC
Service Unit
POWE
R
SENSOR
TEST
CONTROL
spring contacts
GND
X1.2
X1.1
POWER
VALVE

Inspection and maintenance
BEKOMAT® 31U 19
12 Inspection and maintenance
Danger!
Compressed air!
Risk of serious injury or death through contact with quickly or suddenly escaping
compressed air or through bursting plant components or plant components which
are not secured.
Measures:
• Do not exceed the maximum operating pressure (see type plate).
• Only carry out service measures when the system is pressureless.
• Use pressure-resistant installation material only.
• The feed pipe must be tubed firmly.
Discharge pipe: short, fixed pressure hose onto pressure-resistant pipe.
• Make sure that persons or objects cannot be hit by condensate or escaping compressed air.
Danger!
Supply voltage!
There is the risk of an electric shock involving injury or death when coming into contact
with non-insulated components carrying supply voltage.
Measures:
• During electric installations, all regulations in force need to be adhered to (e.g. VDE 0100 / IEC 60364).
• When the control unit is open, service and installation works must only be undertaken when the
system is deactivated.
• The removed control unit has no IP degree of protection.
• All types of electrical works must be carried out by authorised and qualified personnel only.
Caution!
Malfunction during operation!
Through incorrect installation and poor maintenance, malfunction may occur at the
BEKOMAT® .
Condensate which is not discharged may cause damage to plants and in production
processes.
r
Measures:
• Condensate drainage which is reliable in performance directly optimises the compressed-air quality.
• To prevent damage and breakdowns, it is imperative to observe the following:
• Exact compliance with the specifications of use and with the performance parameters of
the BEKOMAT®, in connection with the case of application (see "Proper use" section)
• Exact compliance with the installation- and operation instructions in this manual
• Regular maintenance and control of the BEKOMAT® in accordance with the instructions
in this operating manual

Inspection and maintenance
20 BEKOMAT® 31U
Note:
It is imperative to observe all hazard statements and warnings listed here.
Please also observe all regulations and notes regarding industrial safety and fire prevention at the place
of installation.
As a matter of principle, only use suitable and appropriate tools and materials in a proper condition.
Do not use aggressive cleaners and improper devices such as high-pressure cleaners.
Please note that condensates may contain aggressive or harmful components. Therefore, skin contact
should be avoided.
Condensate is subject to mandatory waste disposal. As such, it must be collected in suitable containers,
and disposed of or processed properly.
Maintenance recommendation:
After 2 x 8,760 operating hours or one million
switching cycles, a maintenance message is released.
The green power LED flashes. Afterwards, or at the
latest after two years (2 x 8,760 operating hours),
the service unit (5) needs to be replaced.
1.Prior to the replacement of the service unit,
a reset needs to be carried out. The control unit
is released by actuating the arresting hook.
When removed, the TEST button below the LED
must be pressed and held for at least five seconds.
2.Remove the control unit (1) by
pressing the arresting hook (2)
3.Unfasten the BEKOMAT® 31U from the outlet (3).
4.Remove the design shell (4) (if there is one)
using a screwdriver (10).
5.Detach the service unit (5) from the tubing
at the inlet by removing the union nut.
6.or remove the screws (6)
from the angle nozzle (7).
1
23
4
5
6
78 9 10