Skov DA 820 LPC Manual

DA 820 LPC • DA 820 • ECT
820 • DCT 820 Fans
Technical User Guide
604347 • 2022-06-07
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http://docs.skov.com/1221

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 3
Product and Documentation Changes
SKOV A/S reserves the right to change this document and the product herein described without further notice.
In case of doubt, please contact SKOV A/S.
The date of change appears from the front and back pages.
IMPORTANT
Notes concerning alarm systems
Breakdowns, malfunctions or faulty settings may cause substantial damage and financial losses when regulat-
ing and controlling the climate in a livestock house. It is therefore essential to install a separate, independent
alarm system that monitors the house climate concurrently with the climate and production controller. According
to EU-directive No. 98/58/EU, an alarm system must be installed in all mechanically ventilated houses.
We would like to draw your attention to the fact that the product liability clause of general terms and conditions
of sale and delivery specifies that an alarm system must be installed.
Note
• All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without
the expressed written permission of SKOV A/S in each case.
• All reasonable efforts have been made to ensure the accuracy of the information contained in this manual.
Should any mistakes or imprecise information occur in spite of this, SKOV A/S would appreciate being noti-
fied thereof.
• Irrespective of the above, SKOV A/S shall not accept any liability with regard to loss or damage caused or
alleged to be caused by reliance on any information contained herein.
• Copyright by SKOV A/S.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide
1 Product description ....................................................................................................................................... 7
2 Product survey ............................................................................................................................................... 8
2.1 DA 820 fans ............................................................................................................................... 8
2.1.1 LPC accessories ........................................................................................................................ 11
3 Mounting guide............................................................................................................................................. 13
3.1 Recommended tools................................................................................................................ 13
3.2 Positioning of the fan in the exhaust unit ............................................................................. 14
3.3 Safety distance......................................................................................................................... 16
3.4 Mounting the motor controller................................................................................................ 16
3.4.1 Position of motor controller/frequency converter ....................................................................... 16
3.4.2 Mounting distances for the motor controller/frequency converter .............................................. 17
3.4.3 Positioning of the motor controller ............................................................................................. 17
4 Installation guide.......................................................................................................................................... 18
4.1 Electrical connection............................................................................................................... 18
4.2 cUL ............................................................................................................................................ 18
4.3 Mains supply dimensioning relative to harmonic distortion ............................................... 18
4.4 Cabling in the exhaust unit ..................................................................................................... 19
4.5 Cabling into the motor controller/frequency converter ....................................................... 19
4.6 Connection in the motor controller/frequency converter .................................................... 20
4.6.1 Terminals for power supply........................................................................................................ 21
4.6.2 Terminals for power supply of fan.............................................................................................. 22
4.6.3 Signal terminals ......................................................................................................................... 22
4.6.4 Terminals on relay module......................................................................................................... 23
4.7 LED indication on the motor controller/frequency converter.............................................. 24
4.8 Alarms....................................................................................................................................... 24
4.9 Adjusting the jumper and connecting the shutter................................................................ 25
4.10 Cable plans and circuit diagrams........................................................................................... 26
4.10.1 General information about circuit diagrams ............................................................................... 26
4.10.1.1 Color code.................................................................................................................................. 26
4.10.1.2 Power supply isolator................................................................................................................. 26
4.10.1.3 Letter Code ................................................................................................................................ 26
4.10.2 Circuit diagrams for OFF/AUTO/ON switch ............................................................................... 27
4.10.2.1 Control voltage (LPC with DA 74CO)......................................................................................... 27
4.10.2.2 Control voltage (LPC with DA 74CV) ......................................................................................... 28
4.10.2.3 Control voltage (ON/OFF with DA 74CO) .................................................................................. 29
4.10.3 DA 820 LPC 230 V with DA 74CO ON/OFF .............................................................................. 30
4.10.3.1 Cable plan.................................................................................................................................. 30
4.10.3.2 Terminals in LPC 230 V fan ....................................................................................................... 30
4.10.3.3 Terminals in DA 74CO ............................................................................................................... 31
4.10.3.4 Circuit diagram .......................................................................................................................... 31
4.10.4 DA 820 LPC 230 V with thermal cutout and DA 74CO ON/OFF ............................................... 32
4.10.4.1 Cable plan.................................................................................................................................. 32
4.10.4.2 Terminals in LPC 230 V fan with thermal cutout........................................................................ 32
4.10.4.3 Terminals in DA 74CO ............................................................................................................... 33
4.10.4.4 Circuit diagram .......................................................................................................................... 33
4.10.5 DA 820 LPC 400 V with DA 74CO ON/OFF .............................................................................. 34
4.10.5.1 Cable plan.................................................................................................................................. 34
4.10.5.2 Terminals in LPC 400 V fan ...................................................................................................... 34
4.10.5.3 Terminals in DA 74CO ............................................................................................................... 35
4.10.5.4 Circuit diagram .......................................................................................................................... 35
4.10.6 DA 820 LPC 230 V with DA 74CV stepless ............................................................................... 36
4.10.6.1 Cable plan.................................................................................................................................. 36
4.10.6.2 Terminals in LPC 230 V fan ....................................................................................................... 36
4.10.6.3 Terminals in DA 74CV ............................................................................................................... 37

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
4.10.6.4 Circuit diagram .......................................................................................................................... 37
4.10.7 DA 820 LPC 230 V with thermal cutout and DA 74CV stepless ................................................ 38
4.10.7.1 Cable plan.................................................................................................................................. 38
4.10.7.2 Terminals in LPC 230 V fan with thermal cutout........................................................................ 38
4.10.7.3 Terminals in DA 74CV ............................................................................................................... 39
4.10.7.4 Circuit diagram .......................................................................................................................... 39
4.10.8 DA 820 LPC 400 V with DA 74CV stepless ............................................................................... 40
4.10.8.1 Cable plan.................................................................................................................................. 40
4.10.8.2 Terminals in LPC 400 V fan ...................................................................................................... 40
4.10.8.3 Terminals in DA 74CV ............................................................................................................... 41
4.10.8.4 Circuit diagram .......................................................................................................................... 41
4.10.9 DA 820 LPC/DA 74CV stepless with reverse ............................................................................ 42
4.10.9.1 Cable plan.................................................................................................................................. 42
4.10.9.2 Circuit diagram .......................................................................................................................... 43
4.10.10 DA 820 LPC/DA 74CV stepless with alarm relay....................................................................... 44
4.10.10.1 Cable plan.................................................................................................................................. 44
4.10.10.2 Circuit diagram........................................................................................................................... 45
4.10.11 DA 820 ON/OFF 230 V with DA 74CO ON/OFF........................................................................ 46
4.10.11.1 Cable plan.................................................................................................................................. 46
4.10.11.2 Terminals in ON/OFF fan 230 V ................................................................................................ 46
4.10.11.3 Terminals in DA 74CO 230 V..................................................................................................... 47
4.10.11.4 Circuit diagram........................................................................................................................... 47
4.10.12 DA 820 ON/OFF 230 V with thermal cutout and DA 74CO ON/OFF ........................................ 48
4.10.12.1 Cable plan.................................................................................................................................. 48
4.10.12.2 Terminals in ON/OFF fan 230 V with thermal cutout ................................................................. 48
4.10.12.3 Terminals in DA 74CO 230 V..................................................................................................... 49
4.10.12.4 Circuit diagram........................................................................................................................... 49
4.10.13 DA 820 ON/OFF 400 V with DA 74CO ON/OFF........................................................................ 50
4.10.13.1 Cable plan.................................................................................................................................. 50
4.10.13.2 Terminals in ON/OFF fan 400 V ................................................................................................ 50
4.10.13.3 Terminals in DA 74CO 400 V..................................................................................................... 51
4.10.13.4 Circuit diagram........................................................................................................................... 51
4.10.14 ECT 820-6 ON/OFF 230 V with DA 74CO ON/OFF .................................................................. 52
4.10.14.1 Cable plan.................................................................................................................................. 52
4.10.14.2 Terminals in ECT fan 230 V....................................................................................................... 52
4.10.14.3 Terminals in DA 74CO 230 V..................................................................................................... 53
4.10.14.4 Circuit diagram........................................................................................................................... 53
4.10.15 ECT 820-6 Triac regulated with DA 74CV stepless ................................................................... 54
4.10.15.1 Cable plan.................................................................................................................................. 54
4.10.15.2 Terminals in ECT fan 230 V....................................................................................................... 54
4.10.15.3 Terminals in DA 74CV 230 V ..................................................................................................... 55
4.10.15.4 Circuit diagram........................................................................................................................... 55
4.10.16 DCT 820-6 ON/OFF 400 V with DA 74CO ON/OFF .................................................................. 56
4.10.16.1 Cable plan.................................................................................................................................. 56
4.10.16.2 Terminals in DCT ON/OFF fan 400 V ........................................................................................ 56
4.10.16.3 Terminals in DA 74CO 400 V..................................................................................................... 57
4.10.16.4 Circuit diagram........................................................................................................................... 57
5 Maintenance instructions ............................................................................................................................ 58
5.1 Cleaning.................................................................................................................................... 58
5.1.1 Fan............................................................................................................................................. 58
5.1.2 Motor controller/frequency converter ......................................................................................... 58
5.2 Recycling/Disposal .................................................................................................................. 58
6 Troubleshooting guide ................................................................................................................................ 59
7 Technical data .............................................................................................................................................. 61
7.1 DA 820 LPC 1x230 V ................................................................................................................ 61
7.1.1 ErP/Ecodesign DA820 LPC 1x230 V ........................................................................................ 63
7.2 DA 820 LPC 3x400 V ................................................................................................................ 64
7.2.1 ErP/Ecodesign DA820 LPC 3x400 V ........................................................................................ 66
Technical User Guide

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide
7.3 DA 820 1x230 V ........................................................................................................................ 67
7.3.1 Erp/Ecodesign DA 820 1x230 V ............................................................................................... 69
7.4 DA 820 3x400 V ....................................................................................................................... 70
7.4.1 Erp/Ecodesign DA 820 3x400 V ............................................................................................... 72
7.5 ECT 820-6 1x230V .................................................................................................................... 73
7.5.1 Erp/Ecodesign ECT 820-6 1x230 V ........................................................................................... 75
7.6 DCT 820-6 3x400 V ................................................................................................................... 76
7.6.1 Erp/Ecodesign DCT 820-6 3x400 V........................................................................................... 78
7.7 Dimensioned sketch ................................................................................................................ 79
7.7.1 Motor controller 1x230 V............................................................................................................ 79
7.7.2 Motor controller 3x400 V............................................................................................................ 79
7.7.3 DA 820 LPC fan ......................................................................................................................... 80
7.7.4 DA 820 ON/OFF fan .................................................................................................................. 80
7.7.5 ECT-/DCT- 820-6 fan................................................................................................................. 80
7.7.5.1 3-blade ....................................................................................................................................... 80
7.7.5.2 5-blade ....................................................................................................................................... 80

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 7
1 Product description
An LPC fan is an energy efficient fan unit consisting of a PM motor
with matching motor control and opimised wing design for LPC
(Low Power Consumperion) and Dynamic MultiStep systems.
All variants of LPC fans are completed at the factory, so both the
motor and fan blade match the current application.
ON/OFF fans are constructed using a standard-dimensioned AC
motor, as well as an optimized blade design.
All ON/OFF fans are completed at the factory, so both the motor
and fan blade match the current application.
ECT/DCT fans are supplied with an integrated motor and fan
blades cast in aluminum. ECT/DCT fans are used as ON/OFF fans.
ECT fans can also be used as a Triac regulated fan.
The fan is designed for mounting in exhaust units and wall exhaustion in livestock houses where the ventilation
system operates in the low-pressure range, i.e. in LPV, diffuse livestock houses and Combi-Tunnel livestock
houses.
The fans bear a CE marking and have a sturdy four-point suspension.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
8 Technical User Guide
2 Product survey
2.1 DA 820 fans
445026 DA 820 LPC 10 fan 230V1 50/60Hz
445028 DA 820 LPC 12 fan 230V1 50/60Hz
The motor controller is to receive a 10-0 V signal
Motor 1.2 kW.
The fan comes with a 2-meter cable for the wiring between motor and motor
controller.
445983 DA 820 PM motor cable 230V LPC 5m can be ordered, if 2m is in-
sufficient.
The power supply to the motor controller does not require a shielded cable.
It comes with motor controller, fan blades and fan suspension.
3-blade, 230 V adjustable fan.
To be applied if you require a low energy consumption, both at partial and
full load.
ErP 2015 approved.
DA 820 LPC 10 should not be used for negative pressure higher than 90
Pa.
DA 820 LPC 12 should not be used for negative pressure higher than 130
Pa.
445027 DA 820 LPC 10 fan 400V3 50/60Hz
445029 DA 820 LPC 12 fan 400V3 50/60Hz
The motor controller is to receive a 10-0 V signal
Motor 1.2 kW.
The fan comes with a 2-meter cable for the wiring between motor and motor
controller.
The power supply to the motor controller does not require a shielded cable.
It comes with motor controller, fan blades and fan suspension.
3-blade, 400 V adjustable fan.
To be applied if you require a low energy consumption, both at partial and
full load.
ErP 2015 approved.
DA 820 LPC 10 should not be used for negative pressure higher than 90
Pa.
DA 820 LPC 12 should not be used for negative pressure higher than 130
Pa.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 9
445036 DA 820 LPC 10 fan 230V1 50/60Hz TH
445039 DA 820 LPC 12 fan 230V1 50/60Hz TH
The fan is the same as part no. 445026/445028, but includes a thermal
cutout.
Cable for the thermal cutout is a separate cable.
DA 820 LPC 10 should not be used for negative pressure higher than 90
Pa.
DA 820 LPC 12 should not be used for negative pressure higher than 130
Pa.
445030 DA 820 ON/OFF fan High Flow 230V1 50Hz
445031 DA 820 ON/OFF fan High Flow 230V1 60Hz
445034 DA 820 ON/OFF fan Low Energy 230V1 50Hz
Motor 1.1 kW.
2 m cable.
3-blade, 1x230 V fan.
It cannot be Triac regulated, and it is therefore used as an ON/OFF fan.
High pressure stability, high performance, and relatively high energy con-
sumption and noise level.
The fan is primarily used where high working pressure is required, for in-
stance in connection with air cleaning, etc.
It comes with fan blades and fan suspension.
ErP 2015 approved.
DA 820 High Flow 50 Hz should not be used for negative pressure higher
than 130 Pa.
DA 820 High Flow 60 Hz should not be used for negative pressure higher
than 120 Pa.
DA 820 Low Energy 50 Hz should not be used for negative pressure higher
than 80 Pa.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
10 Technical User Guide
445032 DA 820 ON/OFF fan High Flow 400V3 50Hz
445033 DA 820 ON/OFF fan High Flow 400V3 60Hz
445035 DA 820 ON/OFF fan Low Energy 400V3 50Hz
Motor 1.1 kW.
2 m cable.
3-blade, 3x400 V fan.
It cannot be Triac regulated, and it is therefore used as an ON/OFF fan.
High pressure stability, high performance, and relatively high energy con-
sumption and noise level.
The fan is primarily used where high working pressure is required, for in-
stance in connection with air cleaning, etc.
It comes with fan blades and fan suspension.
ErP 2015 approved.
DA 820 High Flow 50 Hz should not be used for negative pressure higher
than 130 Pa.
DA 820 High Flow 60 Hz should not be used for negative pressure higher
than 120 Pa.
DA 820 Low Energy 50 Hz should not be used for negative pressure higher
than 80 Pa.
445037 DA 820 ON/OFF fan Low Energy 230V1 50Hz TH
The fan is the same as part no. 445034, but includes a thermal cutout.
Cable for the thermal cutout is a separate cable.
DA 820 Low Energy 50 Hz should not be used for negative pressure higher
than 80 Pa.
409013 ECT 820-6 Triac/ON/OFF fan 230V1 50Hz
Motor 0.84 kW.
1.5 m cable.
3-blade, 1x230 V fan.
Can be used as a stepless Triac regulated fan and as an ON/OFF fan.
High output and good pressure stability.
It comes with fan blades and fan suspension.
ErP 2015 approved.
ECT 820- 6 Triac/ON/OFF 50 Hz should not be used for negative pressure
higher than 90 Pa.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 11
409014 ECT 820-6 Triac/ON/OFF 230V1 60Hz cUL
409016 ECT 820-6 Triac/ON/OFF fan 230V1 60Hz
Motor 1.75 kW.
1.5 m cable.
5-blade, 1x230 V fan.
Can be used as a stepless Triac regulated fan and as an ON/OFF fan.
High output and good pressure stability.
It comes with fan blades and fan suspension.
ErP 2015 approved.
ECT 820-6 Triac/ON/OFF 60 Hz should not be used for negative pressure
higher than 130 Pa.
409015 DCT 820-6 ON/OFF fan 400V3 50Hz
Motor 0.78 kW.
1.5 m cable.
3-blade, 3x400 V fan.
It cannot be Triac regulated, and it is therefore used as an ON/OFF fan.
High output and good pressure stability.
It comes with fan blades and fan suspension.
ErP 2015 approved.
DCT 820-6 ON/OFF 50 Hz should not be used for negative pressure higher
than 70 Pa.
2.1.1 LPC accessories
409145 Thermal protection for fan 230 V with alarm contact
409147 Thermal protection for fan 400 V with alarm contact
For the protection of a LPC fan with thermal cutout.
445076 LPC-2 relay module
Used for mounting in motor controller/frequency converter, if an alarm out-
put is required or reversing of fan is required.
1 x potential free output relay 1 A, 30 V DC/24 V AC.
1 x digital input.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
12 Technical User Guide
445983 DA 820 PM motor cable 230V LPC 5m
Is used for LPV fan 1x230 V in cases where 2 m cable is insufficient.
445993 DA 820 lifting kit
Is used when mounting DA 820 fans.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 13
3 Mounting guide
3.1 Recommended tools
A list of the recommended tools for mounting purposes can be seen below.
Item Description
Cordless drill
Screwdriver bits
Drill kit
Multimeter
Utility knife
Side cutter
Pointed pliers
Screwdriver
Allen key kit
Ladder

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
14 Technical User Guide
3.2 Positioning of the fan in the exhaust unit
The connection box on the fan must face downwards when the fan is used as a wall exhaustion.
Mount the four fan suspensions using 6 x 25 screws in
the marked positions. Be careful not to over-tighten the
screws.
DA- fans must face the fan blades downward.
Position the legs of the fan in the four fan suspension
units.
Fasten all four fan supports using cable ties around the
fan suspension and rubber suspension.
ECT-/DCT fans must face the fan blades upward.
Position the legs of the fan in the four fan suspension
units.
Fasten all four fan supports using cable ties around the
fan suspension and rubber suspension.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 15
In flat-ceiling livestock houses with DA 820 LPC 12, it
is recommended to raise the fans 75 cm in the chimney
to reduce the noise inside the house.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
16 Technical User Guide
3.3 Safety distance
If the distance from the floor to the fan blade is less than
270cm, mounting a protective mesh in the inlet bell
mouth may be required to meet the statutory require-
ments.
3.4 Mounting the motor controller
Incorrect mechanical mounting can result in overheating and reduced performance.
3.4.1 Position of motor controller/frequency converter
Motor controller/frequency converter must not be built-in
or covered and must be mounted on a solid, level sur-
face.
In order to uphold protection classifications, access and
cooling, the motor controller/frequency converter must
be positioned as shown in section Mounting distances
for the motor controller/frequency converter [}17].

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 17
3.4.2 Mounting distances for the motor controller/frequency converter
In order to ensure access of cables and cooling of the
motor controller/frequency converter, the distances to
the surroundings must be met.
3.4.3 Positioning of the motor controller
The motor controller is positioned so that the ambient
temperature is between - 40°C and + 50°C.
Mount the motor controller as close to the fan as possi-
ble.
The 2 m cable included must not be extended.
However, for the LPC fan 1x230 V, a motor cable 230 V
LPC 5 m can be ordered if the 2 m is not sufficient.
Mount the controller on a wooden plate fastened to a
rafter on the ceiling or directly on the chimney.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
18 Technical User Guide
4 Installation guide
4.1 Electrical connection
Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali-
fied personnel in compliance with the applicable national and international standard EN 60204-1
and any other EU standards that are applicable in Europe.
The installation of a power supply isolator is required for each motor and power supply to facilitate
voltage-free work on the electrical equipment. The power supply isolator is not included.
4.2 cUL
Overcurrent protection provide overload protection to avoid overheating of the cables in the installation. Over-
current protection must always be carried out according to local and national regulations. Suitable for use on a
circuit capable of delivering not more than 5,000 rms symmetrical amperes, 480volt maximum. Circuit breakers
must be designed for protection in a circuit capable of supplying a maximum of 10,000 Arms (symmetrical), 480
V maximum; or the value rated on the individual circuit breaker.
For UL Compliance Use the breakers or fuses listed below in the table to ensure compliance with UL or IEC
61800-5-1. Circuit breakers must be designed for protection in a circuit capable of supplying a maximum of
10,000 Arms (symmetrical), 480 V maximum. In the event of malfunction, failure to follow the protection recom-
mendation may result in damage to the drive / frequency converter. Circuit breaker must comply with UL 489.
Input voltage
Nominal
[V]
Input voltage
Voltage range
[V]
Controller type Circuit breaker UL recommended
MCCB
Fuse UL recom-
mended
Recommended
by UL
[A]
Max. UL
[A]
Type: RK5, RK1,
J,T or CC
[A]
1 x 230 DA 820-10 LPC
DA 820-12 LPC
10 35 15
3x400 DA 820-10 LPC
DA 820-12 LPC
4 15 6
4.3 Mains supply dimensioning relative to harmonic distortion
LPC motor controllers function like any other electronic power converter by converting AC to DC. As this conver-
sion produces a non-sinusoidal current, the mains supply for the motor controller is affected by harmonic distor-
tion.
The electrician or the user of the equipment shall ensure, if necessary by contacting the supply company, that
the equipment is connected to a correctly dimensioned mains supply.
For more information, see the document Speed Controllers Power Quality.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
Technical User Guide 19
4.4 Cabling in the exhaust unit
Drill a hole in the exhaust unit duct for the fan cable and
pull it along a support to the same side as the motor con-
troller/frequency converter.
4.5 Cabling into the motor controller/frequency converter
In order to prevent water from running into the motor
controller/frequency converter via cables and screwed
connections, the cabling must be carried out so that it
can stand water around the cable in the gasket of the
screwed connection.

DA 820 LPC • DA 820 • ECT 820 • DCT 820 Fans
20 Technical User Guide
4.6 Connection in the motor controller/frequency converter
1Motor connection terminals (U, V, W, PE)
2Connection terminals for braking resistor (not used)
3Connector for optional module
4Terminal block for programming interface
5RJ12 programming connector (2 x slave / 1 x master)
63-point strain relief for modbus cable
7Power supply terminals for 1-phase (L, N, PE) and 3-phase (L1, L2, L3, N, PE)