Dantherm DanX 1 User manual

DanX 1/2/3
User manual
Rev. 3.2 - 068011
en

Der tages forbehold for trykfejl og ændringer
Dantherm can accept no responsibility for possible errors and changes
Irrtümer und Änderungen vorbehalten
Dantherm n’assume aucune responsabilité pour erreurs et modifications éventuelles

0. TABLE OF CONTENTS
1
1. General
1.1 Introduction.........................................................................................................................................3
1.2 Foundation for the unit .......................................................................................................................3
1.3 Minimum distances.............................................................................................................................3
2. Transportation
2.1 Unloading ...........................................................................................................................................4
2.2 Lifting with a forklift or crane...............................................................................................................4
2.3 Storage...............................................................................................................................................5
3. Installation
3.1 Introduction.........................................................................................................................................6
3.2 Unit construction.................................................................................................................................6
3.3 Installation of unit ...............................................................................................................................7
3.4 Duct mounting ....................................................................................................................................7
3.5 Installation and connection of components........................................................................................8
3.5.1 Condensed water outlets ..................................................................................................... 8
3.5.2 Supply air temperature duct sensor..................................................................................... 9
3.5.3 Return air humidity / temperature duct sensor..................................................................... 9
3.5.4 Room air humidity / temperature sensor.............................................................................. 9
3.5.5 Separate outdoor sensor...................................................................................................... 9
3.5.6 LPHW coil........................................................................................................................... 10
3.5.7 Frost thermostat for LPHW coil.......................................................................................... 10
3.5.8 Water cooled condenser.................................................................................................... 11
3.5.9 Electrical heating coil ......................................................................................................... 11
3.6 Electrical connection ........................................................................................................................12
3.6.1 Main current ....................................................................................................................... 12
3.6.2 Components....................................................................................................................... 12
3.6.3 Electrical heating coil ......................................................................................................... 12
4. Controls
4.1 Introduction.......................................................................................................................................13
4.1.1 Unit function DanX 1/2/3 HP.............................................................................................. 13
4.1.2 Unit function DanX 1/2/3 XD.............................................................................................. 13
4.1.3 Controls in general............................................................................................................. 13
4.2 MVC 80 controller.............................................................................................................................14
4.3 Quick Access Menu..........................................................................................................................16
4.3.1 Password handling............................................................................................................. 16
4.3.2 Start display ....................................................................................................................... 18
4.3.3 Set Point Menu................................................................................................................... 19
4.3.3.1 Set Point change .................................................................................................. 20
4.3.4 Unit Status Menu................................................................................................................ 21
4.4 Service Menu....................................................................................................................................22
4.4.1 Set Point change in Unit Time Program............................................................................. 22
4.4.1.1 Modify a daily program ......................................................................................... 23
4.4.1.2 Add a daily program.............................................................................................. 25
4.4.2 Time program Unit Configuration....................................................................................... 27
4.4.2.1 Filter Check Date.................................................................................................. 27
4.4.2.2 Heating Coil .......................................................................................................... 27
4.4.2.3 Closed mode cooling ............................................................................................ 27
4.4.2.4 Signal TP External (PIR sensor or pool cover switch).......................................... 27
4.4.2.5 Wake up function.................................................................................................. 29
4.4.2.6 BMS Set point Control .......................................................................................... 29
4.4.3 Interface Configuration (Modbus) ...................................................................................... 30
4.4.4 System data ....................................................................................................................... 30
4.4.4.1 Date / Time change .............................................................................................. 31
4.4.4.2 Day light saving..................................................................................................... 31

0. TABLE OF CONTENTS
2
4.5 Alarms ..............................................................................................................................................31
4.5.1 Alarm menu........................................................................................................................ 32
4.5.2 Alarm buffer........................................................................................................................ 32
4.5.3 Points in alarm ................................................................................................................... 32
4.5.4 Critical alarm ...................................................................................................................... 32
4.5.5 Non critical alarm ............................................................................................................... 32
4.6 Control description DanX 1/2/3 HP ..................................................................................................33
4.6.1 Humidity control ................................................................................................................. 33
4.6.2 Temperature control........................................................................................................... 34
4.6.3 Evaporator de-icing............................................................................................................ 34
4.6.4 Fan control ......................................................................................................................... 35
4.7 Control description DanX 1/2/3 XD ..................................................................................................35
4.7.1 Humidity control ................................................................................................................. 35
4.7.2 Temperature control........................................................................................................... 35
4.7.3 Fan control ......................................................................................................................... 36
5. Commissioning
5.1 Introduction.......................................................................................................................................37
5.2 Dampers DanX 1/2/3 HP..................................................................................................................37
5.3 Dampers DanX 1/2/3 XD..................................................................................................................38
5.4 Fans..................................................................................................................................................39
5.5 Frost thermostat ...............................................................................................................................39
5.6 Cooling circuit DanX 1/2/3 HP..........................................................................................................39
6. Maintenance
6.1 Introduction.......................................................................................................................................40
6.2 Maintenance plan.............................................................................................................................40
6.3 Cabinet .............................................................................................................................................40
6.4 Fans..................................................................................................................................................41
6.5 Filter..................................................................................................................................................41
6.6 Heating coil.......................................................................................................................................41
6.7 Double cross flow heat exchanger...................................................................................................41
6.8 Dampers...........................................................................................................................................41
6.9 Cooling circuit...................................................................................................................................42
7. Fault finding
7.1 Introduction.......................................................................................................................................43
7.2 Fault finding......................................................................................................................................43
8. Disposal
8.1 Disposal of the unit...........................................................................................................................44
9. Appendix
9.1 Modbus register XD..........................................................................................................................45
9.2 Modbus register HP..........................................................................................................................46
9.3 Declaration of the unit ......................................................................................................................47
9.4 External spare parts .........................................................................................................................48
9.5 Internal spare parts ..........................................................................................................................49
9.6 Spare parts, cooling circuit...............................................................................................................50
9.7 Technical data DanX 1.....................................................................................................................51
9.8 Technical data DanX 2.....................................................................................................................52
9.9 Technical data DanX 3.....................................................................................................................53

1. GENERAL
3
1.1 Introduction
The DanX 1/2/3 type HP and XD equipment is designed for the use for ventilation, humidity
and temperature control in private and hotel swimming pool areas. The use of the unit
includes the required inspection and maintenance for these units, which is described in the
final chapter of this manual.
Unloading, transportation, assembly and connecting of the DanX 1/2/3 should only be
carried out by trained professionals or by people supervised by authorized staff. It is the
responsibility of the fitter to read and understand this guide and other given information.
1.2 Foundation for the unit
The DanX 1/2/3 unit must be installed in a location that meets the following requirements:
•The supporting structure must be level, stable and vibration-free.
•The supporting structure must be able to bear the weight of the unit (up to 500 kg).
•The deflection of the substructure should be max. 1 mm/m.
•For the connection of the condensate drain, it is necessary that the height between
condense outlet of the unit and the substructure is at least the required height for the
water trap.
1.3 Minimum distances
For the operation, maintenance and servicing of parts as heating coils, dampers, filters and
others a minimum clearance of 850/850/1100 mm (DanX 1/2/3) between inspection side of
the unit and the wall should be foreseen. It is also recommended to have a minimum
clearance of 200 mm between the wall and the side of the unit were the water outlet is
located.

2. TRANSPORTATION
4
2.1 Unloading
The unit is delivered in one module placed on wooden cross beams and wrapped in
protective packing. The following steps should be followed when unloading the modules:
•Find a suitable place for unloading, as the unit can be heavy (up to 500 kg).
•Unload the modules with a forklift or crane (see instructions below).
•Do not tilt or lay down the unit with an integrated refrigeration system (DanX 1/2/3HP).
•Check packing and unit for damage in transit and report any damage to the driver and
to Dantherm Air Handling immediately.
•Retain packing until the unit is placed on the mounting location to avoid damages on
cabinet parts or connecting pieces.
•As the unit is delivered with a built-in control panel, it should be handled with
caution and stored in a safe and dry location until installation is carried out.
2.2 Lifting with a forklift or crane
If a fork-lift is used, it must be ensured that the forks are long enough to fully reach under the
unit, so that the bottom of the cabinet is not damaged. Rough and incorrect handling can
damage the unit and hereby result in glitch. Make sure that the unit’s centre of gravity is as
near as possible to the centre of the two forks, so the module can be transported stable.
When using a crane for lifting, please be aware of the following general points:
•Only use a hoist that can manage the weight of the unit!
•Never use a hoist which is damaged!
•Use soft straps!
•Lift the module cautiously, without jerky movements!
•Do not touch down hard!
Never walk under a module when it is lifted with a crane. There is always a risk that the
crane or helping material may break and cause serious injury or death.
Lifting is carried out as follows:
•Insert 2 bars of round iron (min. 1”) in the holes of the base frame and secure them.
•Use four soft straps, push them over the iron bars and put them together in the crane
hook.

2. TRANSPORTATION
5
2.3 Storage
If the unit is not installed at once but should be stored, note the permissible storage
conditions:
•Do not leave the unit standing outside, but in a building.
•Do not remove the original packaging.
•Protect the unit until the installation from dust, dirt and damage.
•The air temperature in storage should be between 5 °C to 40 °C.
•The storage should be in a dry non-condensing atmosphere.

3. INSTALLATION
6
3.1 Introduction
There are two types of DanX 1/2/3 units for swimming pool ventilation; the HP and XD
version, which are both installed in the same way.
The units shown in the drawing in this manual are always left hand, with the outdoor air
coming from the right-hand side. If you have a right-hand unit, all components of the unit are
the other way around.
Assembly of the DanX 1/2/3 unit should only be carried out by trained professionals or by
people supervised by authorized staff. It is the responsibility of the fitter to read and
understand this guide and other given information.
3.2 Unit construction
The DanX 1/2/3 HP and XD consist of a double cross flow heat exchanger in combination
with a built-in mixing box and direct driven EC fans. The HP model is furthermore equipped
with a compressor driven heat pump. The cooling circuit is filled with refrigerant and does
not need any extra installation.
The units duct connections are as follows (left hand unit):
1) Return air connection, either top or side.
2) Supply air connection, only top.
3) Outdoor air connection, only top.
4) Exhaust air connection, either top or side.

3. INSTALLATION
7
3.3 Installation of unit
Before placing the unit, the wooden pallet must be removed and the separate delivered feet
mounted on the base frame. To do so the following must be done:
•Unwrap the module, open the inspection door and take out the separate box with the
feet.
•Lift the unit with a fork lift or pallet lift and unscrew the wooden pallet (1).
•Screw the feet (2) on the base frame and place the unit where it should be installed.
•For transport reasons the handles are not fitted from the factory. Find the handles
inside the unit and fit one handle with lock and one without in each door. The handle
(1) is fixed to the lock with a screw (2) and the plastic blinder (3) is pressed into the
handle.
3.4 Duct mounting
The ducts connected to the unit must be suspended or underpinned with support elements,
if you fit the ducts on the side of the unit, as the duct connection panels are not strong
enough to hold the duct work.
The ducts can be connected to the DanX 1/2/3 directly, or with flexible connections to
suppress vibrations of the unit. For the flexible connection to work probably, it is important
that it is not totally stretched. When a flexible connection is used, an earth connection must
be mounted between unit and duct work.

3. INSTALLATION
8
It is very important to remove the small rubber plug inside the valve; otherwise the valve
cannot work with overpressure! Secondly the arrow with PA+ must show in the direction of
the drainage!
3.5 Installation and connection of components
All components and duct work of the air handling unit must be installed correctly before
starting up and commissioning the DanX unit.
Installation and connection work should only be carried out by trained professionals or by
people supervised by authorized staff. It is the responsibility of the fitter to read and
understand this guide and other given information.
All temperature sensors are ready mounted and wired to the control panel; just the supply air
temperature sensor and return air temperature / humidity sensor have to be installed in the
duct system.
3.5.1 Condensed water outlets
Drainage from the condensate tray (1”) takes place in two outlets, one on the exhaust side
(positive pressure, outlet on the side) and one on the supply side (negative pressure, outlet
in the front).
Normally it is only necessary to connect the drainage from the exhaust air side. We
recommend using our special ball valve to avoid that humid air is blown through the outlet
into the technical room.
Remove the small rubber plug inside the valve!
The drainage on the front of the unit (supply side) has been blocked by the factory as only
very little condensate will appear on that side of the heat exchanger and this small amount of
condense will then evaporate again into the airstream. If it should show that more condense
then normal is produced, it is possible to remove the plug from the outlet and connected the
outlet with the help of a ball valve to the drain. If you connect a ball valve to this outlet it is
important that the arrow with PA- must show in the direction of the drainage, as the supply
side works with under pressure!
When using a ball valve on the under-pressure side the small rubber plug inside the valve
should not be removed!

3. INSTALLATION
9
It is not possible to change from a duct sensor to a room sensor, or the other way
around.
If you wish to change the sensor, you need a software update for the controller!
3.5.2 Supply air temperature duct sensor
The supply air duct sensor must be installed after connecting the DanX 1/2/3 unit to the duct
system. You find the coiled up (10m) sensor on the top deck of the unit.
The duct sensor is installed in the supply air duct of the swimming pool, after the heating
coil in the following way.
•Drill an 8 mm hole in the supply air duct at least 1.5 m from the last component of the
unit.
•Place the sensor in the hole.
•Fasten the sensor housing to the duct with two screws and close the sensor.
3.5.3 Return air humidity / temperature duct sensor
The return air temperature and humidity sensor have to be installed after connecting the
DanX 1/2/3unit to duct system. You find the coiled up (10m) sensor on the top deck of the
unit.
The duct temperature / humidistat sensor is installed in the return air duct from the
swimming pool. Please follow the instructions, following with the duct sensor.
3.5.4 Room air humidity / temperature sensor
If you have ordered a room thermostat / humidistat sensor instead of a duct mounted on, this
will only be connected to the terminal strip of the unit with a short cable to test the function.
When installing the unit, you must replace this cable with a cable of the right length, to
connect the room temperature / humidistat sensor between the pool room and the unit.
The room temperature/humidistat sensor should be installed at a height of minimum 2,5m
and not above doors where people entering or leaving the pool hall. Secondly the sensor
should not be placed where heating, ventilation or the sun can have an influence on the
measuring result. Otherwise please follow the instructions, following with the room sensor.
3.5.5 Separate outdoor sensor
If there is ordered a separate outdoor temperature sensor, you will find the sensor
separately in the unit without cabling. Install the sensor outside the building where there is
no direct sunlight. Disconnect the standard outdoor sensor which is installed inside the DanX
1/2/3 unit (see electrical diagram) and connect the new outdoor sensor to the two terminals.

3. INSTALLATION
10
3.5.6 LPHW coil
The LPHW coil is connected in the following way:
•Connect the water supply to the inlet of the coil.
•Connect the water return to the outlet of the coil, so the water flow is always counter
flow.
•Connect the two-way valve outside the unit to the water system, as shown in the
drawings.
•After mounting the water valve, set the maximum flow for the coil on the valve (see
also separate instructions).
•Install the actuator to the valve and connect it to the electrical panel (se electrical
diagram)
NB!
When connecting the heat exchanger, counter hold with a suitable tool in order to avoid any
damage to the pipes.
3.5.7 Frost thermostat for LPHW coil
In case a frost thermostat is installed, it is easier to do so before installing the supply air
duct. You will find the thermostat delivered separately in a plastic bag together with all
brackets needed.
•Mount the frost thermostat on the top deck of the unit with the bracket delivered with
the thermostat.
•Mount the bracket for the bulb after the heating coil in the duct outlet.
•Take the duct and drill a hole, run the bulb with the capillary tube through the hole and
fasten the bulb to the bulb holder. Then mount the duct on the DanX unit.
•The thermostat is prewired and the wire only must be connected to the main terminal
strip of the unit (see wiring diagram).

3. INSTALLATION
11
3.5.8 Water cooled condenser
The heat pump in a DanX 2/3 HP may be fitted with a water-cooled condenser for transfer of
surplus heat, which is not used for heating the supply air for the pool or sanitary water. The
entry for the water pipes is at the bottom of the unit, where the condenser is placed. The
piping has then to be connected to the water-cooled condenser inside the compressor
cabinet.
NB!
Piping material must be suitable for chlorine water. Please be aware of the maximum water
volume, which is 800 l/h, as a to high water velocity can destroy the water-cooled condenser
and cooling circuit of the DanX unit.
3.5.9 Electrical heating coil
The heater is designed for insertion into standard spiral ducting and is fixed to the ducting
with screws. When installing the heater, the following has to be taken care of:
•The air must flow through the heater in the direction of the arrow (located on the side
of the heater close to the connection box).
•The heater can be fitted in either horizontal or vertical ducting.
•The electrical connection cabinet can be placed freely facing upwards or sideways to
a maximum angle of 90°. Fitting with the box facing downwards is NOT allowed.
•The distance from (to) the heater to (from) a duct bend, valve, filter, etc. should
correspond to at least twice the duct diameter; otherwise there is a risk that the airflow
through the heater is uneven which can cause activation of the overheating cut-out.
•The heaters may be insulated in accordance with valid regulations for ventilation
ducting. However, the insulation material must be incombustible. The cover of the
heater must be free from insulation, so that the type plate is visible and the cover can
be removed.
•The distance from the heater’s metal casing to any wood or other combustible material
must NOT be less than 30 mm.
•The maximum ambient temperature allowed is 30°C.

3. INSTALLATION
12
3.6 Electrical connection
The installation of the DanX control panel should only be carried out by professional
electricians! When working on the electric panel, always switch of the electric power before
opening the panel door!
For the exact connection of the unit and its components, please refer to the separate
electrical diagrams.
3.6.1 Main current
The main current of the unit is installed in the following way:
•Remove the small panel together with the main service
breaker (1) at the front of the unit.
•Run the main current cable through the gland (2) on the
top of the unit.
•Connect the cable to the main service breaker, according
to the electrical diagram in chapter 9, and the earth wire
to the unit.
•Reinstall the main service breaker panel on the unit.
3.6.2 Components
Most of the components and sensors are already connected to the electric panel by the
factory. But a few, which are accessories, or are installed at the building site (for example
pumps), must be connected on site according to the electrical diagrams. To connect these
components to the electrical panel, you can run the wiring through the glands on top of the
unit into the electrical panel and connect them to the terminals.
3.6.3 Electrical heating coil
The power supply to the electrical heating coil will not be delivered by the DanX 1/2/3, but
must come separately from the building site. The 2-10V control signal (INT/GND/CTR) must
be connected to the electrical panel, where the valve actuator is normally installed and the
alarm contact (1/2) where the frost thermostat is connected. See also the electrical diagram
delivered with the electrical heating coil.

4. CONTROLS
13
4.1 Introduction
A complete DanX 1/2/3 ventilation system for swimming pools requires a control system that
corresponds to the actual unit configuration in the most energy efficient way possible. The
controls are built into the unit and factory tested before delivery thereby providing the most
reliable and energy efficient operation possible. This chapter gives you an introduction how
to set the control system for exactly your swimming pool.
4.1.1 Unit function DanX 1/2/3 HP
The DanX 1/2/3 HP consists of a double cross flow heat exchanger in combination with a
compressor driven heat pump and a mixing box.
The DanX 1/2/3 HP uses a minimum of outdoor air required for hygienic reasons in the pool
hall. To keep pressure drop low and the dehumidification capacity of the heat pump high,
only a part of the humid swimming pool air is run through the heat exchanger and
evaporator.
Part of the exhaust air is leaving the unit and part of the exhaust air is re-circulated to join
the outdoor air. These two airstreams are then preheated in the double cross flow heat
exchanger and afterwards heated in the heat pumps condenser. If the supply air
temperature is too low, the re-heater is activated. In this operation mode the
dehumidification is obtained with the dry outdoor air and heat pump. If the dehumidification
capacity is not enough, the amount of dry outdoor air automatically increases.
If the unit is running in night/closed mode, the outdoor and exhaust air damper are fully
closed and the dehumidification is only done with the heat pump.
4.1.2 Unit function DanX 1/2/3 XD
The DanX 1/2/3 XD consists of a double cross flow heat exchanger and a mixing box.
The DanX 1/2/3 XD is uses a minimum of outdoor air required for hygienic reasons in the
pool hall. To keep pressure drops low, only part of the outdoor air is run through the heat
exchanger. The rest is re-circulated and heated in the re-heater. If the dehumidification
capacity is not enough, the amount of dry outdoor air automatically increases.
If the unit is running in night/closed mode, the outdoor and exhaust air damper are fully
closed and opens only partly if dehumidification is needed.
4.1.3 Controls in general
At the front of the unit you will find the main service breaker. This breaker disconnects all
power to the unit and control panel, so no safety function like a frost thermostat is active any
longer! Neither outdoor/exhaust air damper will be closed, which will lead cooled air the pool
room. Therefore, do not stop the unit with this switch! Always stop the unit with the help of
the controller!
In the front door you will find the DanX 1/2/3 control system, which is based on a Honeywell
MVC 80 controller. On the left- or right-hand side of the controller you will see a RJ45
connection, which is used for easy servicing. Your service company will have to right tools to
use this service device.

4. CONTROLS
14
4.2 MVC 80 controller
The DanX 1/2/3 control system is based on a Honeywell MVC 80 controller, with a software
program by Dantherm to perform control strategies and functions in the most energy efficient
way.
(1) LCD display.
Generally, when the display has not been in use, the display will show the following
information. For easier reading press any button to light up the display.
You will now see the actual day, month, year and time at the top and the actual pool hall
condition (Temperature and Humidity) below. For a more exact explanation see 4.3 Quick
access.
(2) Operating keys. These keys provide the following functions:
Home key calls up the Home menu, which provides information about the unit
status. The Home menu is displayed by default if no operating key has been
pressed for 10 minutes.
Application keys 1 and 2, not used in this unit.
Service key calls up the Service menu including user service functions and
Installer Service submenu.
Alarm key calls up the Alarm menu, which provides information about alarm
history, critical and non-critical alarms and acknowledges alarms.
Cancel key returns to the previous screen, discards current inputs and confirms
alarm messages

4. CONTROLS
15
(3) Rotate & Push button, which works as follows:
(4) LED´s, which indicate the operational status of the controller. In the DanX 1/2/3
application only the Power LED and the Alarm LED are in function.
Power LED (Green)
Alarm LED (red)
Turning the button
Navigate –Highlight - Adjust
•Navigates through menus and
lists
•Highlights items (menu, list,
option, value, command
symbol)
•Adjust options (On, Off, etc.)
and values (temperature,
humidity, etc.)
Pushing the button
Select - Save
•Selects items (menu, list,
option, value, command
symbol)
•Saves options and values
Power LED behaviour
Reason
1
ON
Normal operation
2
OFF
Power supply not OK
Alarm LED behaviour
Reason
1
OFF after power up
Normal operation
2
Lit continuously after power up
Controller has encountered a hardware
problem.
3
Flashes continuously
4 x ON/OFF followed by pause
Sensor failure of analog input

4. CONTROLS
16
4.3 Quick Access Menu
When no keys are pressed the display will show the following information. For easier reading
press the Rotate button to light up the display.
1) Shows the actual day, month, year and time.
2) Shows if the program is secured by a password.
3) Shows if the actual shown point is running in AUTO mode or MANUAL mode
4) Shows the actual pool hall conditions (Temperature and Humidity).
As the user of the unit you should normally not change a point from Auto mode
into Manual mode. This should only be done by professional service technicians!
The only exception is the Function_Switch point (see 4.3.2).
4.3.1 Password handling
There are three different access levels in the program. In Level 1 values can be changed
without using a password. This is possible in the Time Program and for the switch point
(Function_Switch) in the Start Display.
To change set points in the Set Point menu, you must use the level 2 password to get
access. All other points are on access level 3 and can only be changed by entering a service
password, which your Dantherm service technician has*.
It is possible to change the password under the service menu, but it is not recommended by
Dantherm, as new software must be uploaded to the controller if the password has been
forgotten.
Icon
Access level
Password
Points which can be changed in
1
Non
Time Program
2
2222
Set Point menu
3
*
All service points for the unit

4. CONTROLS
17
To access level 2 or 3 highlight the icon in the top right of the start display by rotating the
Rotate button. Press the Rotate button and you now have the possibility to enter your
password.
Find the right number by rotating the Rotate button and then press the Rotate button to
accept. Do so with all 4 numbers. After having accepted the last one, the password icon will
change either to or , depending on the password you have entered.

4. CONTROLS
18
4.3.2 Start display
The start display will show the actual pool hall conditions.
Rotate the Rotate button a few times; the start display will change to the air volumes:
Rotate the Rotate button a few times; the start display will change to the following screen:
Function_Switch. This function is normally set to AUTO, which means the unit is running
with the set points of the Time Program. For service reasons you can change this point to
STOP. You can do this without a password; you just have to highlight the AUTO setting by
rotating the Rotate button.
Then press the Rotate button and AUTO will start to flash. Now you can rotate the Rotate
button and you change the setting, to for example STOP. When you see STOP, press the
Rotate button again and the controls will now accept the command.
The display will now look like the following. Please note that at the same time you have
stopped the unit over the Function_Switch point, the Unit_Status will change from Open Pool
to Stop and the sign for Auto mode will switch to Manual mode .