Skov DOL 834 User manual

DOL 834
Climate Controller
Technical Manual
614091 • 2022-04-01 Software version 7.6
English For other language variants of this document we refer to:
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Français Pour les versions dans d'autres langues de ce document veuillez consulter:
http://docs.skov.com/1256

DOL 834
Technical Manual 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.
In case of an operating error or inappropriate use, ventilation systems can result in production
losses or cause loss of lives among livestock.
We recommend that ventilation systems should be mounted, operated and serviced only by
trained staff and that a separate emergency opening unit and an alarm system be installed as well
as maintained and tested at regular intervals, according to terms and conditions of sale and deliv-
ery.
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.
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.

DOL 834
Technical Manual
1 Product description ....................................................................................................................................... 7
2 Work routine ................................................................................................................................................... 9
3 Installation guide.......................................................................................................................................... 10
3.1 Selecting components............................................................................................................. 10
3.2 Slave relays .............................................................................................................................. 10
3.3 Setup of operation form .......................................................................................................... 10
3.4 View week number................................................................................................................... 11
3.5 Select type of Unit of measurements..................................................................................... 11
3.6 Connecting components......................................................................................................... 11
3.6.1 Installation wizard ...................................................................................................................... 11
3.6.2 The menu Show connection ...................................................................................................... 12
3.6.3 Manual I/O allocation ................................................................................................................. 12
3.7 Climate ...................................................................................................................................... 13
3.7.1 Air inlets ..................................................................................................................................... 13
3.7.2 Air outlet..................................................................................................................................... 13
3.7.2.1 Standard settings for stepless fan.............................................................................................. 13
3.7.2.2 Speed control............................................................................................................................. 13
3.7.2.2.1 Internal fan speed controller ...................................................................................................... 13
3.7.2.2.2 0-10 V speed control.................................................................................................................. 13
3.7.2.3 Dynamic MultiStep ..................................................................................................................... 14
3.7.2.4 Dynamic Air................................................................................................................................ 16
3.7.2.5 Setup for Dynamic Air ................................................................................................................ 16
3.7.2.6 Parking of fans ........................................................................................................................... 17
3.7.3 Recirculation .............................................................................................................................. 17
3.7.4 Heating....................................................................................................................................... 18
3.7.5 Setup of sensors ........................................................................................................................ 18
3.7.6 Active functions in the event of control failure............................................................................ 18
3.7.7 Setting of side cooling................................................................................................................ 19
3.8 Management ............................................................................................................................. 19
3.8.1 Set up equipment monitoring ..................................................................................................... 19
3.8.2 Auxiliary ..................................................................................................................................... 19
4 Calibration..................................................................................................................................................... 20
4.1 Calibration of Air Intake and Air Outlet.................................................................................. 20
4.1.1 Winch motor without feedback................................................................................................... 20
4.2 Calibration of climate sensors................................................................................................ 20
4.2.1 Calibration of pressure sensor ................................................................................................... 20
4.2.2 Calibration of CO2 sensor (installed as CO2 sensor) ................................................................ 21
4.2.3 Calibration of CO2 sensor (installed as auxiliary sensor) .......................................................... 22
4.2.4 Calibration of NH3 sensor.......................................................................................................... 22
4.2.5 Calibration of current sensor...................................................................................................... 22
5 Testing........................................................................................................................................................... 23
5.1 Testing basis components...................................................................................................... 23
5.1.1 Testing temperature and air humidity sensors........................................................................... 23
5.1.2 Testing Alarm............................................................................................................................. 23
5.2 Testing optional components: Manual control ..................................................................... 23
5.2.1 Testing climate functions ........................................................................................................... 24
5.2.1.1 Testing Air Intake and Air Outlet ................................................................................................ 24
5.2.1.2 Testing of Dynamic MultiStep .................................................................................................... 24
5.2.1.3 Stepless fans ............................................................................................................................. 25
5.2.1.4 MultiStep .................................................................................................................................... 25
5.2.1.5 Testing relay functions ............................................................................................................... 26
5.2.1.6 Emergency inlet ......................................................................................................................... 26
5.2.2 Testing management functions.................................................................................................. 27
5.2.2.1 Testing of current sensor ........................................................................................................... 27

DOL 834
5.2.2.2 Testing auxiliary sensor ............................................................................................................. 27
5.3 Testing network connection ................................................................................................... 27
6 Service........................................................................................................................................................... 28
6.1 Settings..................................................................................................................................... 28
6.1.1 Climate....................................................................................................................................... 28
6.1.1.1 Setting of exhaustion (MultiStep) ............................................................................................... 28
6.1.1.2 Fan settings ............................................................................................................................... 28
6.1.1.3 Stepless to step ......................................................................................................................... 29
6.1.1.4 Setting outside temperature limit ............................................................................................... 29
6.1.1.5 Setting of heating ....................................................................................................................... 30
6.1.2 Network settings ........................................................................................................................ 30
6.1.3 UTC time.................................................................................................................................... 31
6.2 Display ...................................................................................................................................... 31
6.3 Backup ...................................................................................................................................... 31
6.3.1 Backup of historical data............................................................................................................ 32
6.3.1.1 IMX based CPU module (2 LAN ports) ...................................................................................... 33
6.3.2 SD card and USB stick .............................................................................................................. 33
6.4 Software update ....................................................................................................................... 35
6.4.1 Preparing for a software update................................................................................................. 35
6.4.2 Carrying out the software update............................................................................................... 35
6.4.3 Check after software update ...................................................................................................... 36
6.5 Control parameters.................................................................................................................. 37
6.5.1 Control modes............................................................................................................................ 37
6.5.1.1 Adaptive control ......................................................................................................................... 37
6.5.1.2 P-band adjustment..................................................................................................................... 39
6.5.1.3 PID control ................................................................................................................................. 39
6.5.2 Ventilation .................................................................................................................................. 39
6.5.2.1 Cycle time .................................................................................................................................. 40
6.5.3 Heating....................................................................................................................................... 41
6.5.3.1 Room heating and stand-alone heater....................................................................................... 41
6.5.3.2 Floor heating .............................................................................................................................. 42
6.5.4 Cooling....................................................................................................................................... 42
6.5.4.1 Side cooling ............................................................................................................................... 42
6.5.5 Humidity ..................................................................................................................................... 43
6.5.5.1 Humidity control ......................................................................................................................... 43
6.5.5.1.1 Humidity control at adaptive ventilation mode ........................................................................... 44
6.5.5.1.2 Humidity control at PID ventilation mode ................................................................................... 44
6.5.5.1.3 Humidity control at adaptive heat mode..................................................................................... 44
6.5.5.1.4 Humidity control at PID heat mode ............................................................................................ 44
6.5.5.2 Humidification ............................................................................................................................ 45
6.5.5.3 Synchronizing with fans ............................................................................................................. 45
6.6 Adjustment of pressure........................................................................................................... 46
6.6.1 Adjusting negative pressure curve............................................................................................. 46
6.6.2 Setting change between roof and side ventilation ..................................................................... 47
6.6.3 Setting of minimum air inlet........................................................................................................ 47
6.6.4 Synchronization of room heating and air inlets .......................................................................... 48
6.6.5 Adjustment of stepless unit ........................................................................................................ 48
6.7 Curve for recirculation unit..................................................................................................... 49
6.8 System ...................................................................................................................................... 49
6.8.1 Resetting data............................................................................................................................ 49
7 General .......................................................................................................................................................... 51
7.1 About......................................................................................................................................... 51
8 Troubleshooting instructions ..................................................................................................................... 52
8.1 Temperature sensor control table.......................................................................................... 52
8.1.1 Table relating to DOL 114 temperature sensor control.............................................................. 52
Technical Manual

DOL 834
Technical Manual
8.1.2 Table relating to DOL 12 temperature sensor control................................................................ 53
9 Technical data .............................................................................................................................................. 54
9.1 Dimensioned sketch ................................................................................................................ 55
10 Functionality ................................................................................................................................................. 56

DOL 834
Technical Manual 7
1 Product description
DOL 834 is a house controller developed for insect farming systems with a focus on the soldier fly and meal-
worms. It is thus intended for breeding and growth of larvae and pupae, but can be adapted to most types of in-
sect farming systems.
Insect farming is an intensive form of production. The insects generate a lot of heat, just like the level of CO2
and NH3 can be high in relation to the room. It requires efficient ventilation with high and uniform air change en-
suring good production conditions throughout the insect house.
DOL 834 meets the insects' special needs for climate control with recirculation, humidification, ventilation boost
and curve control, which is performed on an hourly basis. The ventilation can be controlled as an equal pressure
system and as a central exhaust system.
The house controller is available in two variants, both of which are used in a total insect ventilation system:
• DOL 834 Insect (section ventilation)
• DOL 834 CE Insect (central exhaust)
The climate controller is operated via a touch display with graphical views of e.g. the ventilation status, icons
and curves. Page views may be adapted in accordance with the user requirements so that the most frequently
used working procedures are easily accessible.
Nursery, grow-out and pupa house
Central exhaust - fan bank
DOL 834 CE insect
Air outlet
DOL 834 insect
Air inlet
DOL 834 insect
Recirculation unit
DOL 834 insect
Air inlet
DOL 834 CE insect
Figure1: Ventilation components in an insect house with grow-out crates
In production systems for soldier flies, humidity control and removal of humidity with the ventilation air is crucial
in pupa, nursery and growth sections. The flies are produced here in a moist substrate, and the heat production
of the larvae is released especially in the form of water vapor.
During the growth-out period, the moisture content of the substrate changes. Typically, the substrate has a dry
matter content of approx. 30 % at the start, while at the end it must have a dry matter content of 50-60 %. Dur-
ing the production it is important to maintain such a high moisture content in the substrate that the larvae can
eat the dry matter. The larvae have no teeth and therefore they have to suck in the food. Likewise, it must be
avoided that the surface dries out, as this can make the substrate inaccessible to the larvae, and cause it to
form cakes/crusts, which will be sieved off together with the larvae at the end of production. At the end, it must
be so dry that the larvae can be sieved from the frass. See the section about Humidity.

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8 Technical Manual
Fly houses
Air inlet
DOL 834 insect
Air inlet for recirculation
DOL 834 CE
Air outlet
DOL 834 insect
Figure2: Ventilation components in an insect house with fly cages.
In fly houses, the focus is on good air quality. Here the flies hatch, after which they mate and lay eggs in fly
cages over a period of 10-14 days. They consume no nutrition and only a little moisture from a damp surface.
Therefore, they have a very modest heat and humidity production. However, it is also important to avoid humid
areas inside the fly cages. See the section about CO2.

DOL 834
Technical Manual 9
2 Work routine
This technical manual deals with the installation of the controller and and is aimed primarily at the technicians
and electricians who will be mounting, installing and testing the controller.
According to current national and in Europe also EU regulations, the installation must be carried out by expert
personnel.
Note that electrical equipment may not be opened without removing the supply voltage, and only competent per-
sonnel may carry out servicing operations and troubleshooting.
The following checklist indicates the main points of the work flow regarding set up of the house controller.
Mounting
1. House controller.
2. Emergency opening, if applicable.
Installation
1. Connect cables according to the circuit diagrams for the emergency opening of the system.
2. Set voltage in the controller.
3. Connect mains voltage to the controller.
4. Select components in the house controller's menu Technical | Installation | Installation wizard by
reviewing all points in the Installation Installation wizard.
5. Connect the individual components by means of the controller's menu Technical | Installation |
Show connections and the circuit diagrams.
6. Customize the controller page views to show precisely those functions and values used in the individual
house.
7. Adjust the system.
8. Test the system.
Start-up
1. Setting and calibration.

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10 Technical Manual
3 Installation guide
3.1 Selecting components
There are two ways to carry out installation of the controller.
At the initial installation: Use Installation wizard which will guide you through all the options of the functions.
At adaptation of the existing installation: Use the menu Technical | Manual installation which enables you
to go directly to the relevant function.
Select components in the installation menu of the controller.
( Technical | Installation | Start installation or Manual
installation).
It is not possible to select more components than there is avail-
able I/O for.
You must therefore be aware of whether the controller accepts
your wish to connect a component
If missing I/O, you can:
• install extra I/O modules (if these are available).
• uninstall components.
While functions are selected in the Installation and Show con-
nections setup menus, all alarms will be delayed. Thus, no
alarms will be generated until 2 minutes after the last change in
the installation menu.
This is indicated as info in the alarm menu for as long as the
delay is active.
This does not apply to alarms from CAN bus communication (I/
O modules).
3.2 Slave relays
Using slave relays, the power may be distributed on multiple relays. This is especially useful if the power load is
larger than the max. current of the relays.
For several functions it is possible to select a slave relay which will work in the same way as the master relays -
however, with a delay of up to 1 sec. When the controller is set to Manual, the slave relays will also follow the
master relays.
For heating - when the master is 0-10 V output, the slave relay relay will switch on when the heating is switched
on.
3.3 Setup of operation form
Operation form Setting of operation form (continuous/batch production).

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Technical Manual 11
3.4 View week number
View week number View of week number at the top of all pages.
3.5 Select type of Unit of measurements
Unit of measurements The controller can display the units as both metric and US units.
3.6 Connecting components
The majority of the connection terminals are universal. Different components can therefore be installed using
the individual terminals.
When you select a component from the menu Technical
| Installation | Manual installation the house controller allo-
cates I/O on the basis of a list. This means that the house con-
troller selects the first available I/O on the list, and that the com-
ponents are allocated I/O in the order they are selected.
The same I/O allocation in several controllers – i.e. when the in-
dividual components are connected to the same terminal num-
bers – is ensured by saving the set-up on a USB stick and en-
tering the set-up into several controllers.
3.6.1 Installation wizard
The installation wizard starts automatically when you switch the controller on for the first time. The wizard pro-
vides a structured walk-through of the installation of controller functions. We recommend using the wizard for in-
stallation.
Thus it supports that necessary selections and settings are made in connection with the controller setup.
Choose between:
•Technical | Installation wizard: A complete installation
walk-through.
•Technical | Manual installation: Installation or adaptation of
a specific function, for example, cooling. Here individual
changes can be saved.
Press the arrow buttons in the top right corner to move one step
forwards or backwards in the installation.
Press the X in the upper left corner to terminate the installation
before all steps are completed.
Press Cancel to finish without saving.
Press Confirm to save changes.
Also see section Work Routine for an overview of the complete
procedure for setting up the house controller.

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12 Technical Manual
3.6.2 The menu Show connection
When you have selected all the components in the installation menu, the house computer will show you where
to connect the individual components.
See the menu Show connection for where exactly to connect the individual components.
When a wiring diagram in the Circuit Diagrams and Cable Plans reads "See Show connection", it refers to this
menu.
3.6.3 Manual I/O allocation
If you want to decide the I/O-allocation for one or more components yourself, you can change it manually under
the menu item Manual I/O allocation.
Select the menu Technical | Installation | Manual I/O
allocation, and press the component to be changed.
Choose between the listed terminals. Please note if a terminal
is currently allocated to another function.
Press the required terminal.
If you use a terminal that is currently used by another function,
the house controller will change the I/O allocation for this func-
tion.
Check in the menu Show connections that the house controller
has moved the first allocated function to another terminal.
The controller will change the I/O allocation instantly.
If the I/O allocation can be changed, the house controller will
accept it.
If the I/O allocation cannot be changed, the house controller will
reject it, and the I/O allocation will remain unchanged.

DOL 834
Technical Manual 13
3.7 Climate
3.7.1 Air inlets
The house controller includes different types of air intake:
Roof inlet Air inlet in the roof which regulates via a flap, a fan and a recirculation fan.
Side inlet E.g. wall inlets regulated by a winch motor.
A combination of the two types of air inlets allows the possibility to accommodate an increasing need for ventila-
tion by automatic adjustment of the ventilation mode.
3.7.2 Air outlet
3.7.2.1 Standard settings for stepless fan
The house controller has a range of standard settings for a range of different fan types.
When you choose to load a standard setting, it is not necessary to carry out further settings for fan.
Select the menu Technical | Installation | Manual installation | Climate | Ventilation | Air outlet |
Side outlet | Stepless | Load stepless fan settings.
Select the required fan type.
The setup can be viewed and adjusted in the menu Technical |
Service | Stepless | Adjust stepless. See also the section Ad-
justment of stepless unit [}48].
3.7.2.2 Speed control
3.7.2.2.1 Internal fan speed controller
With an internal fan speed controller, it is necessary to enter the typical voltage of the mains supply to obtain the
correct control of the fan. Measure the voltage by means of a voltmeter or possibly contact an electrician.
Select the menu Technical | Installation | Manual installation | Climate| Ventilation | Air outlet|
Select a type of outlet | Fan speed control
Power supply Enter the typical mains supply voltage to obtain correct control of the fan.
3.7.2.2.2 0-10 V speed control
When the fan is controlled by a 0-10 V speed control, voltages must be set corresponding to the fan stopped
and the fan running at full speed. This settings will depend on the type of fan speed controller used.
Select the menu Technical | Installation | Manual installation | Climate | Ventilation | Air outlet|
Select a type of outlet | Fan speed control
Stop fan Voltage at 0 % fan capacity.
Full speed Voltage at 100 % fan capacity.
Note that the factory setting for both menu items is 5.0 V. The house controller will send an alarm if the settings
are not adjusted.

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14 Technical Manual
3.7.2.3 Dynamic MultiStep
See section Setting of Exhaustion (MultiStep) for a general description of MultiStep.
Dynamic MultiStep makes it possible to reduce power consumption for the fans in the MultiStep system. This is
achieved by the fans' ability to run at two speeds (Low and High) and by letting them run as long as possible at
low speed.
When a low level of ventilation is needed ventilation is carried out as an ordinary MultiStep system, but the fan
output is limited so that it can only provide a percentage of the fan's maximum capacity.
All exhaust units that are set up to run only in the low area in the Dynamic MultiStep system must be able to run
at reduced capacity.
When a high degree of ventilation is required, the fan output varies steplessly from low to full speed and the
flaps are fully open.
0-10 volt output
The 0-10 V output makes it possible to run at low speeds on the
fan, and from here to run the fan steplessly up to full speed.
Low speed and Full speed
When a fan connect to a 0-10 V output has been selected, a
voltage value must be set which corresponds to the fan running
at low and full speed.
Please note that most fan types have stopped at 10 volt.
Depending on which type of fan has been selected, the voltage
is set at low speed to 4-6 volts.
For each MultiStep unit, set whether it should be activated
when the Dynamic MultiStep system runs at high speed, at low
speed or with both.

DOL 834
Technical Manual 15
Ventilation sequence
The livestock house's ventilation system
Flap in stepless unit: The stepless ventilation sequence is
achieved by opening and closing the flap.
Fan in stepless unit: The stepless fan runs as long as possible at
low speed.
Variable ON/OFF: 0- 10 V control signal to fan in stepless ON/
OFF.
Max. output in % at low and high regulation.
Method of Operation
1 stepless unit
2 MultiStep units
From low to high regulation
Figure3: Principle diagram of Dynamic MultiStep system.
Outputs Low High
Stepless unit 8.5 13
MultiStep 1 8.5 13
MultiStep 2 17 26
34 52
Table1: Examples of outputs

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16 Technical Manual
3.7.2.4 Dynamic Air
Dynamic Air is installed by choosing a number of sensors placed on the stepless unit. For each stepless unit, a
number of chimneys controlled in parallel and a number of Dynamic Air sensors can be used.
Measuring the varying stepless output provides an accurate expression of the output of the ventilation system
according to which regulation can be carried out by varying fan revolutions/the flap position.
Air outlet 1-1
Air outlet 2-1
1-16 air outlet
1-16 air outlet
1-3 sensors
1-3 sensors
Technically, one sensor is sufficient for 6 air outlets, but SKOV A/S usually recommends that a Dynamic Air
sensor is installed in every other stepless exhaust unit in order to ensure optimum regulation conditions. The cli-
mate controller regulates stepless air outlet without sensors based on a calculated output.
3.7.2.5 Setup for Dynamic Air
Dynamic Air mode Dynamic Air makes it possible to regulate the stepless air outlet in order to carry
out the correct air change.
• In livestock houses with direct exhaustion, fan speed is regulated.
• In livestock houses with a duct system, the flap is regulated (according to a
curve value). See also the section Adjustment of stepless unit [}48].
Selection of regulation mode for Dynamic Air:
Dynamic Flow: Measurement of the actual amount of air.
Dynamic Control: Measurement and control of the actual amount of air.
Please pay attention to the fact that you can only select Dynamic Control if a fan
speed controller is employed.
Chimney type Choice of in which type of air outlet the Dynamic Air sensor is placed, so that cli-
mate controller can adjust the air measurement according to the dimensions of
the air outlet.
Minimum fan speed When applying Dynamic Control and frequency-controlled stepless speed control
(0-10 V), a minimum fan speed can be entered, so it does not run too slowly.
Although Dynamic Control has been selected, it is important that the curve values
of the fan in the stepless outlet are also set, due to the fact that climate controller
will regulate according to these values in case of an error situation.
Maximum fan speed

DOL 834
Technical Manual 17
To ensure that the chimney can provide the necessary air output, the climate controller will increase the flap
opening by 2% pr. minute (in relation to the stepless curve), if the fan has been running at maximum speed for
more than 1 minute.
In the same way the climate controller will reduce the flap opening by 2% pr. minute (in relation to the stepless
curve) when the fan speed is 10% below the maximum speed for 1 minute. This helps to ensure that the flap po-
sition is stable and does not alternate between opening and closing.
3.7.2.6 Parking of fans
With this function, fans can be taken temporarily out of service. This can, for example, be used in cold periods
where some fans are closed for insulation purposes, or if a fan is defective and awaiting repair.
The function is available in the LPV and CT variants and for all type of ON/OFF MultiStep.
We recommend that you use parking of fans which are not in use as this will enable the ventilation regulation to
automatically adapt to the altered ventilation capacity.
Please not that if a MultiStep is set up to be active in case of failure, the controller will try to start it in case of
failure no matter if it is parked. See also the section Active functions in the event of control failure [}18].
3.7.3 Recirculation
As a recirculation unit, two groups of fans are used located in horizontal chimney ducts with flaps. Each group
blows the air one way and the other way, respectively.
By running the 2 fan groups alternately, the air direction in the house can be reversed. This ensures that the
temperature and air humidity can be kept at the required level.
1 to 2 recirculation
2 to 1 recirculation
1
2
2
1
Figure4: The air direction is indicated as “1 to 2” or “2 to 1”.
1 to 2 recirculation
2 to 1 recirculation
All fans and flaps in each group are controlled by the same signal.
A temperature sensor is placed on each side, in that way the house controller can
calculate the temperature difference between the 2 sides.
It is important that the location and connection of the temperature sensors match the
location and connection of recirculation units so that the air direction is as required.
See also section regarding Speed control [}13].

DOL 834
18 Technical Manual
3.7.4 Heating
Room heating can be regulated as common or individual heating, depending on the number of temperature sen-
sors (not for Heat controlled by own sensor).
Common regulation: A sensor combination with a common setpoint for all room heaters
Individual regulation: A sensor combination for each room heater.
Heat control
(only house heaters)
Choose whether heat sources 1 and 2 should start in parallel or sequentially.
Heat distribution Distribution of capacity between heat sources 1 and 2 (for separate heat control only)
Sequential heating is typically used when there are two different heat sources in the
house.
For example:
• heating pipes and air heaters
• heating pipes and blow heater as extra capacity
It is important to distribute correctly between the two types of heat sources, in order to
obtain a steady heat control. The heating system’s dimensions and output determine the
actual distribution.
3.7.5 Setup of sensors
Temperature sensor se-
lection
Location of temperature sensors for ventilation and heat control.
You can set up several temperature sensors in the livestock house to register the
temperature in each zone.
Number of auxiliary sen-
sors
Select a number of auxiliary sensors.
Auxiliary sensor setup Select the required type of auxiliary sensor.
Name the auxiliary sensor according to function to make it recognizable in alarms
and other info.
3.7.6 Active functions in the event of control failure
When installing MultiStep air outlet and side cooling, you must decide how these functions is to react in an
emergency situation.
MultiStep air outlet
Activated: When the control fails, the air outlet is active.
Deactivated: When the control fails, the air outlet is inactive.

DOL 834
Technical Manual 19
3.7.7 Setting of side cooling
Cooling mode If there are more cooling pumps, they can be set to running either sequentially or in
parallel.
Side cooling relay ratio Side cooling features up to three relays.
The percentage share between cooling relays that are controlled sequentially.
E.g. with two relays: 50 %/50 %
The controller automatically calculates the percentage share for relay 1.
Side cooling
Activated: When the control fails, side cooling is active and runs
until the emergency situation is over.
Deactivated: When the control fails, the side cooling is not ac-
tive.
Note that in an emergency situation the house controller cannot regulate according to temperature and
humidity. If you select Yes (Active at failure), side cooling runs no matter whether the temperature is too
low and humidity is too high in the house.
Note also that a combination of a high inside temperature and high air humidity can be life-threatening to
the animals.
3.8 Management
3.8.1 Set up equipment monitoring
Select number of current sensors.
Then select the function to be monitored by each sensor. One
function, for example, MultiStep 3 can be associated with multi-
ple current sensors.
The function can be named for recognition in alarm log and
overview.
3.8.2 Auxiliary
Number of auxiliary sen-
sors
Select a number of auxiliary sensors.
Auxiliary sensor setup Select the required type of auxiliary sensor.
Name the auxiliary sensor according to function to make it recognizable in alarms
and other info.

DOL 834
20 Technical Manual
4 Calibration
4.1 Calibration of Air Intake and Air Outlet
The controller must be adapted to the winch motor after installation.
Winch motors with feedback must be calibrated by a technician, while winch motors without feedback are cali-
brated automatically once the technician has set up a time for Air inlet time.
During the automatic calibration, the air inlets/air outlets open and close completely for a short time and then re-
turn to the position which the controller calculates.
The change-over switch on the winch motor must be se to AUT.
4.1.1 Winch motor without feedback
Time Setting of the time of day when the automatic calibration shall run.
Running time Setting of the time it takes to run from fully open to fully closed.
Runs before recalibra-
tion
Setting of the number of times the inlet flap has to run before it calibrates automati-
cally.
Minimum voltage
Maximum voltage
When the air inlets or air outlets are 0-10 V controlled, the output voltage can be ad-
justed via Min. voltage and Max. voltage.
1. Select the menu Technical | Calibration | Climate | Side inlets | Calibration.
2. Select ON to start calibration.
3. Check that the correct inlet(s) open(s) and close(s) correctly.
4. Wait until the calibration is finished and the display shows Calibration ended again.
Calibration of other air inlets and air outlets are carried out in the same way.
4.2 Calibration of climate sensors
Temperature and humidity
The connected temperature and humidity sensors can be calibrated using an offset.
If, in connection with manual measurements, the current value is measured to a level that differs from the regis-
trations provided by the installed sensors, you can adjust the read-out value so that it corresponds to your ob-
servation.
0-10V sensors
Adapt the controller to the sensors after installation.
When a sensor is 0-10 V controlled, you can adjust the output voltage via Minimum voltage and Maximum volt-
age.
When Min. value and Max. value are set, you should also indicate the range within which the sensor can mea-
sure.
4.2.1 Calibration of pressure sensor
Depending on the control type (positive pressure/negative pressure), for which the DOL 18 is to be used, it must
be installed and adjusted in different ways.
When installing the pressure sensor, dip switches must be set up and tubes must be placed. Also see the Cir-
cuit Diagrams and Cable Plans document.