Seifert 3BHB022684R0101 User manual

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Table of Content 3BHB022684R0101
1. User manual 2 ..................................................................................................................................
2. Legal regulations 2 .........................................................................................................................
3. Safety instructions 3 ......................................................................................................................
4. Technical functions 4 ......................................................................................................................
5. Technical data 4 ..............................................................................................................................
6. Performance Graph 5 ......................................................................................................................
7. Mounting 6 .......................................................................................................................................
8. Mounting Principle 7 .......................................................................................................................
9. Dimensions (H x W x D) 8 ...............................................................................................................
10. Electrical connection 9 .................................................................................................................
11. Wiring diagram 10 .........................................................................................................................
12. Taking into operation 13 ..............................................................................................................
13. Trouble shooting 13 ......................................................................................................................
14. Maintenance & Cleaning 13 .........................................................................................................
15. Transport & Storage 14 ................................................................................................................
16. Parts supplied 14 ..........................................................................................................................

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1. User manual
This instruction manual contains information and instructions to enable the user to work safely, correctly and
economically on the unit. Understanding and adhering to the manual can help one:
Avoid any dangers.
Reduce repair costs and stoppages.
Extend and improve the reliability and working life of the unit.
PLEASE ENSURE TO USE THE RIGHT VERSION OF THE INSTRUCTION MANUAL SUITABLE FOR YOUR
UNIT.
Conditions of use
󰾬The unit is to be used exclusively for the dissipation of heat from control cabinets and enclosures in order to
protect temperature sensitive components in an industrial environment. To meet the conditions of use, all the
information and instructions in the instruction manual must be adhered to.
General danger
Indicates compulsory safety regulations which are not
covered by a specific pictogram such as one of the following.
High electric voltage
Indicates electric shock danger.
Important safety instruction
Indicates instructions for safe maintenance and operation of
the unit.
Attention
Indicates possible burns from hot components.
Attention
Indicates possible damage to the unit.
Instruction
Indicates possible danger to the environment.
2. Legal regulations
Liability
The information, data and instructions contained in this instruction manual are current at the time of going to
press. We reserve the right to make technical changes to the unit in the course of its development. Therefore,
no claims can be accepted for previously delivered units based on the information, diagrams or descriptions
contained in this manual. No liability can be accepted for damage and production caused by:

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Disregarding the instruction manual
Operating error
Inappropriate work on or with the unit
The use of non-specified spare parts and accessories
Unauthorised modifications or changes to the unit by the user or his personnel
The supplier is only liable for errors and omissions as outlined in the guarantee conditions contained in the main
contractual agreement. Claims for damages on any grounds are excluded.
3. Safety instructions
Upon delivery the unit is already meeting current technical standards and can therefore be safely taken into
operation. Only authorised personnel is allowed to work on the unit. Unauthorised personnel must be prohibited
from working on the unit. Operating personnel must inform their superiors immediately of any malfunction of
the unit.
Please note that before starting to work on or with the unit, a procedure must be carried out inside the cabinet
on which the unit is to be mounted.
Before commencing work inside the cabinet, the control cabinet manufacturer's instruction must be read with
regards to:
Safety instructions.
Instructions on taking the cabinet out of operation.
Instructions on the prevention of unauthorised cabinet reconnection.
The electric equipment meets the valid safety regulations. One can find dangerous voltages (above 50 V AC or
above 100 V DC)
Behind the control cabinet doors.
On the power supply in the unit housing.
The unit has to be operated according to the type plate and the wiring diagram, and must be protected
externally from overloading and electrical faults via suitable protective devices.
Danger through incorrect work on the unit
The unit can only be installed and maintained by technical competent and qualified
personnel, using only supplied material according to the supplied instructions.
󰾬
Danger from electrical voltage
Only specialised personnel are allowed to maintain and clean the unit. The personnel must
ensure that for the duration of the maintenance and cleaning, the unit is disconnected from
the electrical supply.
Attention
Damage to the unit through the use of inappropriate cleaning materials. Please do not use
aggressive cleaning material.
Instruction
Damage to the environment through unauthorised disposal. All spare parts and associated
material must be disposed according to the environmental laws.

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4. Technical functions
Air-air heat exchangers are intended as complementary accessories to large industrial equipment which include
a motor-operated fan or blower together with a heat exchanger module. These may also include an electric
heater. The fan or blower is intended to recirculate air and allow heat exchange. The heat exchanger is
designed for air heat transfer only.
Cooling function may be controlled by an on-board or remote controller or thermostat. Heating function, when
installed is provided by an electrical heating element. The unit seals the cabinet which ensures that the clean air
inside does not come into contact with the ambient air which may well be dirty or polluted. The unit is fit for
purpose within the rated/declared ambient conditions (e.g. dusty and oily air or high air temperatures between
-5°C and 55°C), also indicating the rated allowable ingress and environment.
Heat exchangers are used where the heat generated by energy losses in control cabinets must be conducted
away to protect temperature-sensitive components. The characteristic graph shown in the section “Performance
graph” applies to external (ambient) air as the coolant.
In air-to-air heat exchangers, the internal temperature of the control cabinet cannot be cooler than the ambient
temperature. There are natural limits to the cooling performance, dependent on the air supply temperature and
the requirement for a temperature difference of at least 5K. Unlike systems in which the heat generated is
allowed to escape by air convection through ventilation slots, with the heat exchanger, the clean air inside the
control cabinet is prevented from mixing with the air outside, which may well be unclean.
5. Technical data
Order Number 3BHB022684R0101
Heat exchanger performance 165 W/K
Temperature range -5°C - +65°C
Air volume flow (system / unimpeded) Ambient air circuit 1400 m³/h
Cabinet air circuit 1200 m³/h
Mounting Roof mounted
Housing Material Mild steel, powder coated
Dimension H x W x D 1,025 (975) x 750 (700) x 320 (320) mm (Housing)
Weight 65 kg
Voltage / Frequency 230 V ~ 50/60 Hz
Rated current 2.9 A @ 50 Hz
4 A @ 60 Hz
Starting current 5.5 A @ 50 Hz
7.5 A @ 60 Hz
Max. current 2.9 / 4 A
Max. power 670 / 900 W
Fuse 6 A (T)
Connection 8 - pole terminal block
Ingress protection IP 54
Approvals CE, cURus File Number: SA9672

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6. Performance Graph
T = Temperature difference between ambient and internal temperature
P = heat exchanger performance

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7. Mounting
Danger from electrical voltage
The unit must be mounted by specialist personnel (qualified electricians). The personnel must ensure that the
cabinet is disconnected from the electrical supply for the duration of the mounting operation. Therefore take the
cabinet out of operation, following the relevant instructions before mounting work commences.
Danger through incorrect work on the unit. Only specialists are allowed to put the unit into operation.
Mounting preparations
Several points must be checked before the unit can be mounted. These checks must be made to ensure safety
and the trouble-free operation of the unit. These checks must be carried out with absolute thoroughness to
ensure that the unit works perfectly.
Transport damage check
On delivery the carton containing the unit must be examined for signs of transport damage. Any transport
damage to the carton could indicate that the unit itself has been damaged in transit which in the worst case
could mean that the unit will not function.
Location and space requirements
The location of the cabinet must allow for sufficient air circulation to and from the unit. The unit should be
mounted roughly horizontally. It is therefore advisable to check that the cabinet is in a horizontal position. The
max. deviation from the vertical or horizontal should not excess 20 degrees.
Sealing
To guarantee that the unit works perfectly ensure that, the control cabinet is completely sealed (to min. IP54 to
EN 60529) and a good seal exists between the control cabinet and the unit. If necessary the cabinet mounting
surface should be reinforced.

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8. Mounting Principle

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9. Dimensions (H x W x D)

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10. Electrical connection
Danger from electrical voltage
The unit should only be connected by qualified electricians.
The personnel must ensure that the unit is disconnected form the
electrical supply for the duration of connection work and is protected
against unauthorised reconnection.
Note: Check that the available voltage, frequency and fuse rating are the same as those stated on the unit data
label.
Connection to the main electrical supply
The mains connection is made via a 5-core cable. To connect the unit to the mains proceed as follows:
Take the control cabinet out of operation in the prescribed manner.
See the connection details on the circuit diagram.
Note the connections of the 5-core cable from the following table.
Black L Phase
Blue N Neutral
Yellow / green Earth protection
Brown L1 Phase
Grey N1 Neutral
Note: Connect the unit to the mains. Take the control cabinet back into operation in the prescribed manner.
Power consumption and start-up current are stated on the data label and under technical data.
Connecting the alarm and door contact interface
To avoid unnecessary run-time, the heat exchanger can be switched on and off through the door contact. There
is also an alarm contact that notifies about high cabinet temperature and about fan-failure.
The alarm/door contact interface is made via a 5-core cable. To connect the alarm/operation interface proceed
as follows:
Take the control cabinet out of operation in the prescribed manner
See the connection details on the circuit diagram.
Note the connections of the 5-core cable from the following table.
Brown T1 Door contact 1
Grey T2 Door contact 2
Pink P1 Alarm high temperature NC
Red P2 Alarm Common
Violet P3 Alarm high temperature NO
Attention: The door contact (T1, T2) must be switched potential-free.
Attention: The current that will operate the alarm contact (P1, P2, P3)
must be less than 0,5 A / 24VAC or 0,5 A / 24VDC.
The temperature adjustment range for the alarm temperature is
between 40°C (left-hand stop) and 70°C (right-hand stop). The alarm
temperature is pre-set in our works at 60°C.
To change the setting for the alarm temperature:
Remove the MCB access plate on the front of the unit.
Using a screwdriver turn the adjustment wheel on the potentiometer “ALARM” slightly to the right

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(higher) or to the left (lower).
Please note that the setting for the alarm signal should be at least 5 - 10°C higher than the setting for the
cabinet internal temperature.
Check that the new setting meets the requirements and if not repeat the above process. Inspect and if
necessary replace the MCB access plate sealing tape.
11. Wiring diagram
Connector J1: Molex mini-fit jr. 4-pole Alarm
1 Violet NO
2 Red Common
3 Pink NC
4 not connected
Connector J3/J5/J7/J9: Molex mini-fit jr. 2-pole capacitor
1 Brown
2 Blue
Connector J11:Molex KK. 2-pole Door contact
1 Brown ON
2 Grey ON
Connector J18/19:Molex mini-fit jr. 2-pole LED
1 Black +
2 Red -
Connector J4/6/8/10: Molex mini-fit jr. 4-pole Fan
1 Black Live Black #1
2 Blue Neutral Black #2
3 Brown CAP Black #3
4 Yellow/green Earth Yel / gr.
Connector J22/23/24/25: JST 3-pole Hall Signal
1 Red 5 VDC Black #4
2 Blue Neutral Black #6
3 Brown 0 VDC. Black #5
A - Type Connector: AMP round 4-pole Fan
1 Black Live Black #1
2 Blue Neutral Black #2
3 Brown CAP Black #3
4 Yellow/green Earth Yel/gr.
B - Type Connector: Molex mini-fit j. 4-pole Fan

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1 Red 5 VDC Black #4
2 Black 0 VDC Black #5
3 White Hall Black #6
4 not connected
Component lables
C1 - 4 Capacitor for fan
F1 - 4 Fan fuse 31.5 A (T)
LED D3/5/7/9 Fuse OK
LED D23/25/27/29 Fan OK - green
LED D24/26/28/30 Fan FAULT - red
Test buttons
0 - 10 sec All fans ON
10 - 20 sec. Fan 1 ON, fans 2,3,4 OFF
20 - 30 sec Fans 1,2 ON, Fans 3,4 OFF
30 - 40 sec Fans1,2,3 ON, Fan 4 OFF
40 - 120 sec All fans OFF
S1 - 1-4 (ON) Fan selection
- 5 (ON) LT5165 selection
TEMP - Control set-point potentiometer
CB - Circuit breaker / protector 2-pole 6 A Type C

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12. Taking into operation
As described before the unit is controlled in relation to the cabinet internal temperature. The required cabinet
temperature can be set on the potentiometer on the controller.The temperature adjustment range is between
0°C (left-hand stop) and 60°C (right-hand stop). The thermostat is pre-set at 35°C.
To adjust the cabinet internal temperature proceed as follows:
Remove the MCB access plate on the front of the unit.
Using a screw driver turn the adjustment wheel on the potentiometer “TEMP” slightly to the right (higher)
or to the left (lower).
Please note that the setting for the alarm signal should be at least 5 - 10°C higher than the setting for the
cabinet internal temperature.
Check that the new adjustment meets the necessary requirements. If necessary, repeat the procedure. Inspect
and if necessary replace the MCB access plate sealing tape.
13. Trouble shooting
In case of a fault logon to our website www.seifertsystems.com to locate your nearest servicing office or find
your nearest contact in the chapter “contacts” in this manual.
14. Maintenance & Cleaning
Danger from electrical voltage
Maintenance and cleaning must be carried out by specialists
(electricians). The personnel must ensure that for the duration of this
work the unit and the cabinet are disconnected from the electrical
supply and protected against unauthorised reactivation.
Danger through incorrect work on the unit.
The instructions in the cabinet manufacturer’s manual must be
adhered to!
Damage to the unit through incorrect maintenance and
repair! Maintenance and repair must be carried out by the
manufacturer or another specialist.
Fan replacement
The rated life expectancy of the fan is L10 =30,000 hours under normal operating conditions.
To replace the internal or external fan, please proceed as following:
Remove the internal access panel by unscrewing the 10 fixing screws.
Disconnect the blower cables from the connectors.
Unscrew the four screws fixing the blower bracket to the cabinet.
Unscrew the fan from the bracket.
Re-assembly with the new blower is in reverse order.
Make sure that the blower cable length is the same as the one of the removed fan to ensure that the cable does
not come in contact with the blower while in operation. Make sure that the correct polarity is maintained. (Refer
to circuit diagram). Inspect and if necessary replace the internal access panel sealing tape.
In addition the unit should have regular functional tests (approx. every 2,000 hours depending on the grade of
ambient pollution).

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15. Transport & Storage
Malfunction due to transport damage
On delivery the carton containing the unit must be examined for signs
of transport damage. Any transport damage to the carton could
indicate that the unit itself has been damaged in transit which in the
worst case could mean that the unit will not function.
Storage conditions
The unit can only be stored in locations which meet the following conditions:
Temperature range: - 40°C to + 70°C
Relative humidity (at 25°C): max. 95%
Returning the unit
Damage to the unit through incorrect transport.
To avoid transport damage the unit should be returned in the original
packing or in a packing case and must be strapped to a pallet!
If the unit cannot be returned in the original packing please ensure that:
A space of at least 30 mm. must be maintained at all points between the unit and the external packing.
The unit must be firmly fixed in the packing.
The unit must be protected sufficiently by shock absorbing padding (hard foam corner pieces, strips or
cardboard corner pieces).
16. Parts supplied
1 x Control cabinet air-air heat exchanger LT-5165-UL
4 x Lifting hooks with washers
Seifert Systems GmbH Seifert Systems Ltd. Seifert Systems AG Seifert Systems Inc. Seifert Systems Pty Ltd.
Albert - Einstein Str. 3 HF09/10 Wilerstrasse 16 75 Circuit Drive 105 Lewis Road
Hal-Far Industrial Estate North Kingstown Wantirna South
42477 Radevormwald Birzebbuga, BBG 3000 4563 Gerlafingen RI 0285 3152 Victoria
Deutschland Malta Switzerland USA Australia
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