Kampmann Lufterhitzer TOP Series User manual

TOP
unit heaters
Installation and operating instructions
Keep these instructions in a safe place for future use!
Kampmann.co.uk/installation_manuals
I 343 06/17 EN SAP-Nr. 1069153

2
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
1 General .............................................................................. 4
1.1 About these instructions ....................................... 4
1.2 Explanation of symbols ......................................... 4
1.3 Copyright protection............................................. 5
1.4 Customer service.................................................... 5
2 Safety ................................................................................ 6
2.1 Intended use .......................................................... 6
2.2 Limits of operation and use .................................. 7
2.3 Safety information................................................. 8
3 Transport and storage ....................................................... 10
4 Delivery .............................................................................. 10
5 Technical data..................................................................... 10
6 Installation ......................................................................... 11
7 Hydraulic connections ....................................................... 12
8 Factory-tted accessories.................................................. 12
9 Electrical wiring ................................................................. 13
9.1 Safety information................................................. 13
9.2 Motor protection .................................................. 14
9.2.1 AC fans .................................................................. 14
9.2.2 EC fans ................................................................... 15
9.3 Wiring..................................................................... 16
9.3.1 Three-phase motors............................................... 16
9.3.2 AC single-phase motors ........................................ 18
9.3.2.1 Single-phase controller ......................................... 18
9.3.2.2 Continuously variable power
module type ...31 V ............................................... 20
9.3.2.3 KaControl recirculation air
module type ...31C1............................................... 23
9.3.3 EC single-phase motor........................................... 25
9.3.3.1 Control with 0-10 VDC type ...33/34 .................... 26
9.3.3.2 KaControl recirculation air
module type ...33C1/34C1 ..................................... 27

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TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
10 Commissioning .................................................................. 28
10.1 Pre-commissioning checks .................................... 28
10.2 Commissioning ...................................................... 29
Post-commissioning checks................................................ 29
11 Decommissioning (longer-term) ...................................... 30
12 Maintenance and cleaning ............................................... 30
12.1 Housing .............................................................................. 30
12.2 Heat exchanger ..................................................... 30
12.3 Motor ..................................................................... 30
13 Operating faults ................................................................ 32
13.1 All unit heaters ..................................................... 32
13.2 AC single-phase motor
with motor junction box type ...31/36 ................. 32
13.3 AC single-phase motor
with power module type ...31V ........................... 33
13.4 AC single-phase motor with KaControl
recirculation air module type ...31C1 .................. 33
13.5 EC single-phase motor
with motor junction box type ...33/34 ................. 34
13.6 EC single-phase motor with KaControl
recirculation air module type ...33C1/34C1 .......... 34
14 Disposal ............................................................................. 35
15 Declaration of Conformity ............................................... 36

4
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
1 General
1.1 About these instructions
  Theseinstructionsensurethesafeandefcienthandlingof
this equipment. These instructions form an integral part of the
equipment and have to be kept in the direct vicinity of the
equipment and available to personnel at all times.
All personnel must have carefully read through these
instructions prior to commencing all work on the equipment.
A fundamental prerequisite for safe working is compliance
with all the stated safety instructions and other instructions
contained in this manual.
In addition, all local occupational health and safety at work
regulations apply, as do general safety provisions governing the
use of the equipment.
Illustrations in these instructions are intended to provide a
basic understanding and may differ from the actual model.
Anyone involved with the installation, commissioning and
use of this product is obliged to pass these instructions
on to tradespeople who are involved at the same time or
subsequently, as well as to end users or operators. Retain these
instructionsuntilnaldecommissioning!
1.2 Explanation of symbols
Notes
DANGER!
This combination of symbol and signal word
indicates an immediately hazardous situation,
which will cause death or injuries if not avoided.
Risk from electrocution!
Dangerfromhazardouselectricalvoltage!Death
of severe bodily injury can occur if appropriate
precautionarymeasuresarenottaken!

5
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
This symbol highlights useful hints,
recommendations and information for efcient and
trouble-free operation.
IMPORTANT NOTE!
This combination of symbol and signal word
indicates a possible dangerous situation, which can
cause material and environmental damage if not
avoided.
1.3 Copyright protection
The contents of this manual are protected by copyright. Their
use is permitted when using the product. Any further use is not
permitted without written permission from the manufacturer.
1.4 Customer service
Our Customer Service team is available is available for technical
information:
We are always interested in receiving information and
experiences relating to the use of our products which could be
of value for improving our products.
Address
Kampmann GmbH
Friedrich-Ebert-Str. 128–130
49811 Lingen (Ems)
Phone [phone]
Fax [phone]
Email [email protected]
Website www.kampmann.de

6
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
2 Safety
This section provides an overview of all important safety
aspects to ensure optimum protection of personnel as well
as safe and trouble-free operation. Additional order-related
safety information is contained in the sections covering the
individual phases of the product's life.
2.1 Intended use
Applications
TOP unit heaters should only be used
indoors (e.g. production halls, warehouses, workshops in
industry and commerce, sports halls, sales showrooms and
greenhouses etc.)
depending on the design of heat exchanger, TOP unit
heaters can either be connected to hot water, district hot
water, steam or thermal oil.
TOP should not be used
outdoors,
in humid areas, such as swimming pools, in wet rooms,
in areas where there is a risk of explosion,
in areas with a high dust content,
in areas with an aggressive atmosphere.
Protect the products from any moisture during storage and
installation. If in doubt, check the proposed use with the
manufacturer.Anyuseotherthantheusespeciedaboveis
deemed not to be correct and proper. The operator of the unit
is solely responsible for any damage arising as a result of this.
Correct and proper use is deemed to include observing the
installation instructions described in these instructions.
Specialist knowledge
The installation of this product requires specialist knowledge
of heating, cooling, ventilation and electrical engineering.
This knowledge, generally learned in vocational training in
oneoftheeldsmentionedabove,isnotdescribedseparately.
Damage caused by improper installation is the responsibility of
the operator.
Kampmann TOP unit heaters are constructed in line with
the state of the art and recognised safety regulations.
Nevertheless, their use can result in danger to people or
damage to the units or other material assets if they are
not appropriately installed and operated or correctly and
properly used.

7
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
The installer of these units should have adequate knowledge of
the following gained from specialist vocational training:
Safety and accident prevention regulations
Guidelines and recognised technical regulations, i.e.
Association of German Electricians (VDE) regulations, DIN
and EN standards.
Purpose and scope of the manual
This manual contains information on the operation of TOP unit
heaters. The information contained in these instructions can be
changedwithoutpriornotication.
2.2 Limits of operation and use
We would refer to VDI-2035 Sheets 1 & 2, DIN EN 14336 and
DIN EN 14868 with regard to the properties of the medium
used to protect the equipment. The following values provide
further guidance.
The water used should be free of contamination, such as sus-
pended substances and reactive substances.
Water quality
Ph*1 8-9
Conductivity*1 µS/cm < 700
Oxygen content (O2) mg/l < 0,1
Hardness °dH 4-8,5
Sulphur ions (S) Not measurable
Sodium ions (Na+) mg/l < 100
Iron ions (Fe2+,Fe3+) mg/l < 0,1
Manganese ions (Mn2+) mg/l <0,05
Ammonia ions (NH4+) mg/l < 0,1
Chlorine ions (Cl) mg/l < 100
CO2ppm < 50
Sulphate ions (SO42-) mg/l < 50
Nitrite ions (NO2-) mg/l < 50
Nitrite ions (NO3-) mg/l < 50
Limits of operation
Min. water temperature °C 5
Min./Max. air intake temperature °C -20 bis +40
Min./Max. air humidity % 15-75
Max. operating pressure bar see nameplate of the unit heater
Max. water temperature °C see nameplate of the unit heater
Min./Max. glycol percentage % 25-50

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1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
2.3 Safety information
  Onlyallowaqualiedelectriciantoperforminstallation,
assembly and maintenance work on electrical units in
compliance with VDE guidelines. The connection should comply
with the applicable VDE regulations and provisions laid down
by the regional electricity providers.
Non-compliance with the regulations and operating
instructions can result in the units malfunctioning with
consequential damage and danger to people. There is a danger
of fatal injury caused by wires being swapped due to incorrect
wiring!
Regularly check the unit heater's electrical equipment.
Immediately replace loose connections and faulty cables.
Disconnect all parts of the system from the mains power supply
and prevent them from being reconnected before starting any
connectionandmaintenancework!
EC fans
Electrical loading (>50 C) between the mains conductor and
protective conductor after switching off the mains power
supply when switching several fans in parallel.
 Ensurethatacontactsafetydeviceistted.Themains
connections and PE need to be shorted before working on
the electrics.
Important:
Note the maximum flow temperatures to protect the fan!
Long periods of fan idleness with high water temperatures can
lead to impermissible heating of the fan motor. The flow
temperatures should therefore be limited depending on the use
and motor configuration.
Should a temperature limit not be possible or not be sensible for
the intended use, there is also an option of using appropriate
valves (thermoelectric, motorised or solenoid) to shut off the
heating medium.
This can interrupt the flow of medium before the fan is switched
off and the heat exchanger cools down. Appropriate fan
controllers with a fan run-on relay and connection terminals for
the motorised valve are available on request.
Max. flow temperatures*
Type of installation
Use Motor design Ceiling Wall
without shut-off
valve
AC fan 100 °C 120 °C
EC fan 100 °C 120 °C
with shut-off valve AC fan 200 °C 200 °C
EC fan 160 °C 160 °C
* Fan models and operation for higher temperatures on request.

9
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Please note the following safety-relevant information
Disconnect all parts of the system that are being
worked on. Ensure that the system cannot be
accidentallyre-connected!
Before commencing installation/maintenance
work, wait until the fan has come to a standstill
after the unit has been switched off. After
working on the unit, remove any tools, the short
circuit detector or other parts of the unit.
 Caution!Pipes,casingsandttingscanbecome
very hot or very cold depending on the
operatingmode!
 Caution!Weargloves,safetyshoesandsuitable
protectiveclothingwhentransportingtheunit!
Sharp edges cannot be ruled out despite care
during manufacture.
The operator of the unit is responsible for
the EMC conformity of the entire system in
accordance with the local applicable standards.
The terminals and connectors are still energised even when
the unit is switched off. Check whether the terminals and
connectors are de-energised with a two-pin voltage tester.
Only open the unit 5 minutes after all poles of the voltage
have been switched off.
The protective conductor carries high leakage currents
(depending on the frequency, intermediate voltage and motor
capacity). Therefore check EN-compliant earthing under test
conditions (EN 50 178, art. 5.2.11). Hazardous voltage can occur
at the motor housing without earthing.
In the event of a fault, the rotor and impeller can be energised.
Rotor and impeller are base-insulated.
 Donottouchwhentted!
The fan runs when control voltage is applied or the saved fan
speed starts up automatically when mains power has failed.
Do not go near the hazard area of the unit.
High temperatures are produced at the fan's electronic
housing.
Burning hazard.
The fan is protected from blockage. Protective functions are
integrated depending on the fan type, which cause the fan to
switch off automatically in the event of various faults.
Please refer to the operating instructions for the respective
fan.
Please read these instructions in full to ensure correct and
proper installation and the correct operation of TOP unit
heaters.

10
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Please note all applicable safety and accident
prevention regulations.
 Attention!Riskofsharpedges!Weargloves,
safety shoes and suitable protective clothing
duringtransportation!
 Caution!DonotcarryTOPunitheatersbytheir
louvres!
Use suitable means of transport to avoid any
damagetoyourhealth!
Please note the transport information printed on
the packaging.
Modications to the unit
  DonotundertakeanymodicationsorupgradestotheTOP
without discussing them with the manufacturer as they can
impair the safety and operation of the unit.
Do not carry out any measures on the unit not described in this
manual. Make sure that on-site systems and cabling are suitable
forconnectiontotheintendedsystem!
3 Transport and storage
Interim storage
Store the units in dry, dust-free and weather-proof rooms
withoutanytemperatureuctuations.
Never stack the units on top of each other to prevent
damagetothem!
Use the original packaging for storage.
Store TOP unit heaters in the position shown on the
packaging.
4 Scope of delivery
  Providematerialsforxingtheunitsheaters,e.g.screws,plugs
etc., on site, depending on the type of mounting and support
structure.
Check immediately on receipt:
Is the delivery damaged?
Have the items ordered been delivered?
Check model numbers.
Is the delivery and number of items delivered correct?

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TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
5 Technical data
Please refer to the typeplate on the unit heater for precise
technical data.
The unit conforms to the provisions of:
89/392 EEC, 73/23 EEC; 89/336 EEC; 79/196 EEC.
6 Installation
Qualications
Installation of this product requires specialised knowledge of
heating, cooling and ventilation. This knowledge, generally
learnedinvocationaltraininginoneoftheeldsmentioned
above, is not described separately. Damage caused by improper
installation is the responsibility of the operator.
Wall brackets can be used to mount unit heaters upright or
suspended on the wall, and ceiling brackets to suspend them
from the ceiling. Unit heaters can also be mounted on wall or
ceiling brackets provided on site. When installing unit heaters,
leave a minimum gap A between the motor guard and the wall
or ceiling.
If you do not leave this minimum gap, the output of the unit
heaters will be reduced and the noise level will increase. When
using accessory components, ensure that you maintain the
minimumgapandleavesufcientspacearoundelementsthat
requireaccessformaintenance(e.g.lters).
Ceiling-mounted
Wall-mounted
Overview of types
Unit size Type Minimum clearance A Standard clearance A *
4 44 _ _ 36 / 44 _ _ 31 / 44_ _33 / 44_ _34 135 mm 240 mm
5 45 _ _ 36 / 45 _ _ 31 / 45_ _33 / 45_ _34 150 mm 235 mm
6 46 _ _ 36 / 46 _ _ 31 / 46_ _33 195 mm 280 mm
7 47 _ _ 36 / 47 _ _ 31 / 47_ _33 255 mm 320 mm
* when using wall brackets type 3_044
Example showing AC fan with
motor junction box
Technical data
Series 44 45 46 47
Operating voltage 3 x 400 V (500V) or 1 x 230 V ~ 50 Hz
Enclosure type IP 54 IP 54 IP 54 IP 54
Water content l 1.6 - 6.1 2.2 - 8.2 3.4 - 11.5 4.8 - 16.8
Weight kg 26 - 62 34 - 92 46 - 125 55 - 150
Sound pressure level1) dB(A) 13 - 56 19 - 64 20 - 62 22 - 61
1) The sound pressure levels were calculated based on an assumed room insulation of 16 dB(A).
This corresponds to a distance of 5 m, a room volume of 3000 m³ and a reverberation time of 2.0 s (in accordance with VDI 2081).

12
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
7 Hydraulic connection
Connect the TOP as per the labels on the product.
Route the pipes so that no mechanical stresses are transferred
to the heat exchanger and that the unit can be accessed with
ease for maintenance and repair work.
Provide ventilation and drainage for the pipes on site.
Properly seal pipe connections not being used.
Important note:
The LPHW heat exchanger is suitable for use with hot water
heating systems in compliance with DIN 18380. Ensure that
operating conditions and water quality conform to VDI 2035
and comply with industry-standard installation regulations.
Caution! Hold the connections on the heat exchanger with
a pipe wrench or other suitable tool when connecting the
pipework.
8 Factory-tted accessories
Several combinations of components are possible e.g. …FR
Description of accessories Sufx to unit heater type
Frost protection thermostat . . . . . . F
Repair switch . . . . . . R
Continuously variable power
module including repair switch
for unit heater type ending 31
. . . . . . V
KaControl recirculation air
module including repair switch
for unit heater type ending 31,
33 and 34.
. . . . . . C1

13
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
9 Electrical wiring
9.1 Safety information
The electrical wiring of this product requires technical
knowledge of electrical engineering. This knowledge, generally
learnedinvocationaltraininginoneoftheeldsstated,is
not described separately here. Errors with the wiring can lead
totheunitbeingdamaged!Themanufacturerisnotliable
for any damage to people and materials caused by the wrong
wiring and/or improper handling. Note the following safety
information before starting work on the controller and the TOP
unit heater:
Regularly check the unit heater's electrical equipment.
Immediately replace loose connections and faulty cables.
Disconnect the system and ensure that it cannot be
accidentally reconnected.
Only use the wiring diagrams enclosed to carry out the
electrical connection.
Only wire the unit in accordance with currently applicable
VDE and EN guidelines, as well as Technical Wiring
Regulations stipulated by the regional energy supply
companies.
 Onlyconnecttheunittoxedwiring.
The operator of the unit is responsible for the EMC
conformity of the entire system in accordance with the local
applicable standards.
EC fans
Electrical loading (>50 C) between the mains conductor and
protective conductor after switching off the mains power
supply when switching several fans in parallel.
 Ensurethatacontactsafetydeviceistted.Themains
connections and PE need to be shorted before working on
the electrics.
The terminals and connectors are still energised even when
the unit is switched off. Check whether the terminals and
connectors are de-energised with a two-pin voltage tester.
Only open the unit 5 minutes after all poles of the voltage
have been switched off.
The earth wire carries high leakage currents (depending on the
frequency, intermediate voltage and motor capacity). Therefore
check EN-compliant earthing under test conditions (EN 50 178,
art. 5.2.11). Hazardous voltage can occur at the motor housing
without earthing.

14
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
In the event of a fault, the rotor and impeller can be energised.
Rotor and impeller are base-insulated.
 Donottouchwhentted!
The fan runs when control voltage is applied or the saved fan
speed starts up automatically when mains power has failed.
Do not go near the hazard area of the unit.
High temperatures are produced at the fan's electronic
housing.
Burning hazard.
The fan is protected from blockage. Protective functions are
integrated depending on the fan type, which cause the fan to
switch off automatically in the event of diverse faults.
Please refer to the operating instructions for the respective
fan.
Please read these instructions in full to ensure correct and
proper installation and the correct operation of TOP unit
heaters.
9.2 Motor protection
9.2.1 AC fans
Thermal contacts (temperature detectors) are embedded
in the motor windings, which open when the maximum
winding temperature of 155°C is exceeded. Combined with
an appropriate protective switch, the motor is switched
off whenever it impermissibly heats up. The motor is thus
protected against overload operation, over- and undervoltage,
unacceptably high ambient temperatures and jammed rotors.
Thermal contacts meet the conditions for protection against
overloading of equipment with electric motor drive (VDE 0730).
Commercial motor protection switches or bi-metal trips are not
suitable as motor protection with multi-stage motors. Only
appropriately wired controllers or modules or a similar type of
switch may be used.
Single-phase controller
The thermal contacts switch off and lock the motor via
the single-phase controller whenever the motor heats up
inadmissibly.

15
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Continuously variable power module type V
The thermal contacts switch off the motor via the stage switch
whenever the motor heats up inadmissibly (without locking the
motor!).Apotential-freeNCcontactofferstheoptiontolock
the 0-10 V control signal to "0 V" via an on-site controller.
  Theunitisnotshortcircuit-proof!Thedevicewillbedamaged
beyond repair if the motor cable short circuits. Even when the
motor is idle, the motor cables (U1 and U2) still carry mains
potential!
KaControl recirculation air module type ...31C1
The thermal contacts switch off the motor via the KaControl
module whenever the motor heats up inadmissibly. In addition,
the KaControl system sets the speed signal to 0 V. In neither
caseisthemotorlocked!
  Theunitisnotshortcircuit-proof!Thedevicewillbedamaged
beyond repair if the motor cable short circuits. Even when the
motor is idle, the motor cables (U1 and U2) still carry mains
potential!
9.2.2 EC fans
All EC fans have an integral overload protection; no upstream
motor protection device is needed.
Electromechanical control
The motor junction box contains a relay with a potential-free
changeover 24 to 250 V/ 2 A. This signals a fault of the fan or
power failure only for types 45xx33, 46xx33 and 47xx33. In
fault mode, the relay is energised (Contact C – NO closed). In
the event of a fault, the relay becomes de-energised (Contact
C - NO open)
There is no fault signal contact in fan types 44xx33, 44xx34 and
45xx34andthereforenofanfaultorpowerfailureisreported!
KaControl recirculation air module type ... 33C1/34C1
This is signalled to the KaControl system in the event of a fan
fault type 45xx33C1, 46xx33C1 and 47xx33C1 and the red LED
in the housing lights up.
There is no fault signal contact in fan types 44xx33, 44xx34 and
45xx34!Intheeventofapowerfailureattheunitheater,there
is no signal via the KaControl system and the red LED does not
light up.
Fan fault indicator

16
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
9.3.1 Three-phase motor
The three-phase outer rotor motor can be switched between
2stageswitha2-stagethree-phaseswitch(Y/Δconguration).
Themotorineachofthetwoswitchingcongurations(YorΔ)
can be switched between 5 stages by voltage reduction using a
5-stage three-phase controller.
  Thefansareoperatedwithaclockwiserotatingeld!
Caution! Operation of this unit on frequency converters is only
permittedifthefrequencyconverterhasasineltereffective
onallpoles.Missingsinelterscanleadtoseverethermal
damage to the fan motor. In this case, the manufacturer
accepts no warranty.
Three-phase parallel connection
Several TOP units, even of different sizes, can be connected
in parallel to a stage switch if the switching power of the
stage switch is not exceeded.
The thermal contacts of all TOP unit heaters have to be
switched in series.
If several TOP unit heaters are connected to a stage switch,
we recommend the use of intermediate terminal boxes.
Suitable three-phase switching units
Different switches from our range are available to switch and
control the speed of the motors. The above table provides an
overview of the available switches, their switching power and
the resulting max. number of TOP unit heaters, which can be
connected to a switch unit.
Max. number of connectable TOP unit heaters
Description Type Imax. 44 _ _ 36 45 _ _ 36 46 _ _ 36 47 _ _ 36
2-stage three-phase switch
with room thermostat connection 30049 10 A 19 13 10 5
2-stage three-phase switch with room ther-
mostat connection 30051 10 A 19 13 10 5
5-stage three-phase controller 2 A 30751 2 A 4 3 2 1
5-stage three-phase controller 4 A 30752 4 A 9 6 4 2
5-stage three-phase controller 8 A 30754 8 A 18 12 9 5
Electronic 2-stage three-phase controller 30177 10 A 19 13 10 5
30277
Switching stage 1 Y-connection
Switching stage 2 Delta connection
TOP with
motor junction box
9.3 Electrical wiring
Damage can be caused by the use of incompatible switching
devices and inadequate protective equipment.
The manufacturer does not accept any warranty in these cases.
Only connect up units that have a circuit breaker which switches
off all poles from the mains power supply with a minimum
contactgapof3mm!

17
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Three-phase wiring diagrams
Connection to 2-stage switch unit
Connection to 5-stage switch unit
niedrige Drehzahl: Y-Schaltung hoheDrehzahl:Δ-Schaltung
low speed:
Y-connection
high speed;
Δ-connection
2-stage, three-phase controller
5-stage three-phase controller 5-stage three-phase controller
To further unit heaters
Terminal strip on
the unit heater
Terminal strip on the
unit heater

18
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
9.3.2 AC single-phase motors
The fan motors (230 V/50 Hz) are equipped with a single-
phase winding with capacitor auxiliary phase. The speed can
be changed using a 7-stage single-phase controller by voltage
reduction (transformer principle), a continuously variable
single-phase controller, a continuously variable power module
or a KaControl recirculation air module.
9.3.2.1 Single-phase controller
The fan motor has a 230 V main winding with capacitor
auxiliary winding. The units are factory-wired to the correct
direction of rotation (wiring diagram 1, page 18).
If there is no air output then the direction of rotation is
incorrectlywired! 
Parallel connection of AC single-phase motor
Several TOP units, even of different sizes, can be connected
in parallel to a single-phase controller up to the maximum
switching power of the single-phase controller. If several TOP
unit heaters are connected to a single-phase controller, we
recommend the use of intermediate terminal boxes.
Important: Switch the thermal contacts of all fan motors in
series!
Important: Switchthemotorwindingsofallfansinparallel!
Suitable controllers for AC single-phase motors
Different controllers from our range are available to switch and
control the speed of the motors. The table at the bottom of
page 18 provides an overview of the available controllers, their
switching power and the resulting max. number of TOP unit
heaters, which can be connected to a controller.
TOP with motor junction
box

19
TOP unit heaters 1.53
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
Single-phase wiring diagrams
Wiring diagram 1 single-phase; factory wiring
Regelgerät Regelgerät
Wiring diagram 2 single-phase; Reversal of fan
direction
Drehrichtungsumkehr durch Umverdrahtung von
zwei Motoranschlussadern:
Verbindung: U1-Z1 ==> U1-Z2
Verbindung: V1-Z2 ==> V1-Z1
Klemmenleiste
Motorklemmbrett
Klemmenleiste
Motorklemmbrett
Max. number of connectable TOP single-phase unit heaters per controller
TOP type series Type Imax. 44 _ _ 31 45 _ _ 31 46 _ _ 31 47 _ _ 31
7-stage single-phase controller 30771 4 A 5 3 2 1
7-stage single-phase controller 30772 7.5 A 10 5 4 3
Electronic continuously variable
Single-phase controller
30540 4.5 A 6 3 2 1
30543
Control unit Control unit
Reversal of fan direction by switching the wires
of two motor connection wires:
Connection: U1-Z1 ==> U1-Z2
Connection: V1-Z2 ==> V1-Z1
Terminal board Terminal board
Motor terminal board Motor terminal board

20
1.53 TOP unit heaters
Unit heaters (2-stage three-phase motor/1-stage AC single-phase motor/continuously variable EC single-phase motor)
Installation and operating instructions
9.3.2.2 Continuously variable power module type ...31V
The continuously variable speed controller offers the option of
controllingthefanmotoreitherviaa0-100KΩpotentiometer,
0-10 VDC signal or 0-5 V DC signal. The type of control is
pre-set by a jumper.
To guarantee a reliable start up, the fan is operated for 30
seconds at 120 VAC. A minimum voltage limit of 100 VAC is
factory-set.
The maximum limit can be selected via the DIP switch.
Models 44, 45 and 46: (see Table 1)
Model 47: (see Table 2)
The fan and the power module can be disconnected from the
mains power supply via the integral master switch.
All additional electrical components are not disconnected from
themainspowersupplybythemasterswitch!
TOP with power module
DIP switch
position Resulting
maximum voltage
DIP 1 DIP 2
0 0 140 VAC
0 1 160 VAC
1 0 190 VAC
1 1 230 VAC
(factory setting)
Table 1
DIP switch
position Resulting
maximum voltage
DIP 3 DIP 4
0 0 140 VAC
0 1 160 VAC
1 0 190 VAC
1 1 230 VAC
(factory setting)
Table 2
DIP switch for power
module for models 44,
45 and 46
DIP switch for power
module for model 47