Watts BLUCHER Connected Roof Installation and operating instructions

USER MANUAL & INSTALLATION GUIDE
BLÜCHER®Connected Roof
SIPHONIC
ROOF
GREEN
ROOF
BLUE
ROOF
GRAVITY
ROOF
INTELLIGENT
ROOF
BALCONY
& PARKING
REV. 01 / OCTOBER 2020

2 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
Content
1 Introduction ................................................................................................................................... 3
2 Scope of delivery........................................................................................................................... 4
3 Safety instructions and regulations............................................................................................. 4
4 Technical specication................................................................................................................. 5
4.1 Product overview ..................................................................................................................... 5
4.2 Gateway specications ............................................................................................................ 6
4.3 Monitor specications .............................................................................................................. 7
5 Mechanical installation................................................................................................................. 7
5.1 Gateway .................................................................................................................................. 7
5.2 Monitor ................................................................................................................................. 10
6 Commissioning ........................................................................................................................... 12
6.1 SD card ................................................................................................................................. 12
6.2 Conguration le .................................................................................................................... 13
7 Functions ................................................................................................................................. 14
7.1 Display ................................................................................................................................. 14
7.1.1 Menu structure.............................................................................................................. 14
7.1.2 Menu content................................................................................................................ 15
7.1.3 Display information ........................................................................................................ 16
7.2 Info button ............................................................................................................................. 16
7.3 Relay ................................................................................................................................. 17
7.4 Measurement values.............................................................................................................. 18
7.4.1 Water Level ................................................................................................................... 18
7.4.2 Temperature.................................................................................................................. 18
7.5 Diagnostics............................................................................................................................ 18
7.5.1 Offset ............................................................................................................................ 18
7.5.2 Systems Diagnostics ..................................................................................................... 20
7.6 Monitor modes ...................................................................................................................... 20
7.6.1 Operation Mode ............................................................................................................ 20
7.6.2 Test Mode ..................................................................................................................... 20
7.7 Power up / reboot.................................................................................................................. 20
8 Modbus interface ........................................................................................................................ 21
8.1 Supported function codes...................................................................................................... 21
8.2 Modbus Termination .............................................................................................................. 21
9 Gateway software update .......................................................................................................... 21
10 Service and maintenance........................................................................................................... 22
11 Troubleshooting .......................................................................................................................... 23
12 Disclaimer ................................................................................................................................. 24
13 Appendix – Conguration le parameters................................................................................ 25
14 Appendix – Modbus tables......................................................................................................... 26

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 3
1 Introduction
Thank you for buying this BLÜCHER®Connected Roof product. We hope that it will live up to
your expectations and make monitoring your roof performance easier.
All documents related to this product can be found at www.blucher.com.
BLÜCHER®Connected Roof allows you to easily supervise the performance of your roof.
The system is designed to detect a possible blocked drainage system before any major
issues occur.
The system consists of Gateway(s) and Monitors. The Monitor is mounted next to the roof
drain and collects water level- and temperature data. The Monitor sends a wireless signal to
the Gateway.
The Gateway functions as a master to the Monitors with one Gateway monitoring up to 16
Monitors. Additional Gateways must be installed if you have more than 16 Monitors in the
system.
You can set the system up in different ways to receive the information.
1) The information can be read directly on the Gateway display.
2) You can use the relay output to trigger a visual or an acoustic alarm.
3) You can use the Modbus signal to communicate directly with the Building Management
System (BMS).
4) You can apply a GSM-gateway to receive the information on your mobile phone or via
email.
This user manual and installation guide describes the installation and start-up for BLÜCHER®
Connected Roof Gateway item number #900.000.400, and how to connect the Connected
Roof Monitor item number #900.100.400 to the Gateway.
Prior to installation, please read these installation and operating instructions. Installation
and operation must comply with local regulations and accepted codes of good practice.
Receives signal
from roof monitors
Sending signal
to Gateway
Building Management
System
Climate change

4 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
2 Scope of delivery
Please carefully check all components in the box. Should something be missing, contact your
dealer at once.
Gateway:
Item Description Quantity
Gateway Connected Roof Gateway 1
Power supply 5VDC, 1A 1
SD Card Micro SDHC, Class 4, 4 GB 1
Antenna 868 MHz SMA connection 1
Quick start Getting started instructions 1
Monitor:
Item Description Quantity
Monitor Connected Roof Monitor 1
Mounting bracket Mounting frame for Monitor 1
Quick start Getting started instructions 1
Optional accessories:
Item Description
External antenna 868 MHz SMA connection
w/ 3 m cable
Must to be ordered
separately, item number
(900.900.000)
3 Safety instructions and regulations
Installation must be suitable for the on-site conditions and comply with the local regulations
and technical rules.
Please note that alterations, or improper repairs to the product are not permitted. If alterations
or improper repairs are carried out, the CE-mark and the manufacturer’s warranty will
become invalid.
CAUTION
Correct, reliable operation of the product requires proper transport, storage, positioning
and assembly as well as careful operation. Only qualified personal should install or operate
the device.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 5
4 Technical specication
4.1 Product overview
GATEWAY
1. Antenna
2. Info button
3. SD card
4. Input for power supply
5. Relay output
6. Internal power supply
7. Modbus
8. Jumper switch
MONITOR
9. Mounting bracket
10.Level sensor
11.Monitor ID
1
2
3
4
223 mm
80 mm 567
8
10
11
9

6 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
4.2 Gateway specications
Power supply
Voltage 5V DC 1A
Nominal power 0,5 W
Electrical protection class Class 3
Wireless
Frequency 868 MHz
Antenna connector SMA
Signal range Up to 1500m in free line of sight
User input
Push button 1
Display
Type 0.96” OLED
Size 128*64 dot
SD card
Type MicroSDHC Class 4 or higher
Size >4 GB
Relay
Type 1RT NO/NC
Load limit 230VAC 5A
Connection 3 pin screw terminals (Max 1.5mm²)
MODBUS
Physical Layer RS485
Baud rate Up to 115200 Bauds
Connection 3 pin screw terminals (Max 1.5mm²)
Termination Yes, ON/OFF jumper conguration
Cable glands
Size PG7 (diameter 2.5-6.5mm)
Enclosure
IP protection IP 30
Material ABS
Size 120 x 65 x 40mm (without antenna and cable glands)
Mounting hole Ø4 mm
Environmental
Working temperature -10°C - 55°C
Storage temperature -30°C - 80°C
Humidity Below 80% non-condensing

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 7
4.3 Monitor specications
Power supply
Battery Lithium battery LS 14500 3.6V (internal) AA
Battery life Up to 10 years
Level Sensor
Sensor electrodes Stainless A2
Enclosure
IP protection IP68
Material Anti-UV PC
Size 120 x 65 x 60mm
Environmental
Working temperature -35°C - 85°C
Storage temperature -35°C - 85°C
5 Mechanical installation
5.1 Gateway
We recommend that the Gateway is placed centrally in relation to the Monitors, and in line
of sight to ensure the best possible signal strength. Please note that obstructions such as
concrete and metal can reduce the signal range.
Do not install the BLÜCHER®Connected Roof Gateway in areas with a risk of water exposure and high humidity levels.
The ambient temperature should be in the range between -10 °C and 55 °C and the humidity below 80% non-condensing.
Please consider the material/thickness of the gateway enclosure for maximized signal strength.
Temperature
-10 – 55°C
Humidity
< 80% - non
condensing

8 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
Mounting instructions
To mount the enclosure:
60 mm
Min. 50 mm
35 mm
To acces
Micro SD card
Unscrew the 4 no. screws on the front cover, then remove
the front cover to access the mounting holes. The mounting
holes are Ø4 mm, and screws are not included.
Ensure there is enough free space around the unit to
enable access to the SD card, and to allow space for
the antenna and cable glands.
If there is no room for the gateway, because of the antenna, or if the placement of the gateway will disturb the signal to the
antenna, an external can be an option. Item number #900.900.000
The external has a magnetic socket and can be mounted directly on metal. If preferred it can also be glued.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 9
Electrical wiring
In the bottom of the Gateway you can make three different electric wire connections - Relay,
Internal power and Modbus. Below you will nd the different ways to set it up.
Relay
Relay can be wired as NO or NC.
Internal power
As an alternative to the power
connector on the right side of the
Gateway, a 5V DC power supply
can be wired directly to the power
terminals.
Modbus
If connection to a Modbus RTU BMS
system is required, a suitable RS485,
cable must be used and connected to A,
B, GND. If connection to a Modbus RTU
BMS system is required, a suitable RS485
cable must be used and connected to A,
B, GND.

10 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
5.2 Monitor
We recommend that one Monitor is installed next to each drain on your roof. Monitors should
be installed at the primary drainage system and not at emergency outlets and drains. This
gives the system the best conditions to evaluate the performance of the drainage system.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 11
The Monitor should ideally be installed at the same invert level as the roof drain, giving the
system the best conditions to measure the right water level. If this is not possible, and the
Monitor ends up higher/lower than the roof drain, you will need to offset the water levels on
the Monitor in the cong le (see chapter 7.5).
Before installing the Monitor ensure that the surrounding
roof area and the bracket are cleaned carefully before
application of the recommended glue/sealer for the roof
type.
1. Clean Bracket
2. Clean Roof
3. Glue
Use glue/sealer
recommended for
you roof type
40 mm - 60 mm
Position the Monitor, including bracket, 40-60
mm from the edge of the drain. If the drain has
a leaf guard, the 40-60 mm distance is from
the edge of the leaf guard to the bracket.

12 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
6 Commissioning
Prior to commissioning, ensure that all Monitors have been installed and the Gateway is
mounted and wired according to the previous chapter.
1. Ensure power is OFF*
2. Remove SD card from the Gateway and open the Cong le in an editor
3. Edit the Cong le parameters to reect the application (see appendix 13)
4. Save the Cong le and place the SD card in the Gateway
5. Turn power ON*
6. Wait for all the Monitors to connect. This process can take up to 30 minutes. Alternatively,
enable Monitor Test mode to reduce time (see capture 7.6)
7. Verify that there are no errors or warnings in the display
8. Verify Modbus values and functionality**
* As an alternative to power OFF/ON the “Remove SD card” mode can be entered by pressing the Info button
for 5 seconds. When the SD card is mounted again, the Gateway will reboot and read the new configuration.
** This step is only for setting up BMS systems.
6.1 SD card
The SD card is used for conguring the Gateway and for storing log data. Out of the box,
the SD card will only contain the conguration le. This le is used to setup the system with
communication between a Gateway and Monitors.
NB: Before removing the SD card, either power off or press the Info button for 5 seconds to
enter “Remove SD card” mode.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 13
6.2 Conguration le
The cong le has sections that must be parameterized. All parameters are described in detail
in appendix 13.
Description
Monitor ID’s (Mandatory) Pair all relevant monitor ID’s. Monitor ID is unique and found
on the Monitor Label. One Gateway supports up to 16
Monitors. Omit all zeros ”0” in front of monitor ID. See label
and conguration le examples below.
General Settings (Optional) Gateway system settings. No changes needed.
Relay Settings (Optional) Only needed if the Relay function is needed.
Roof alarm setting (Optinal) To parameterized the sensitivity of Roof alarms.
BMS Settings (Optional) If Modbus RTU is used, all connection settings and Monitor
TAG’s are parametrized here.
Monitor ID

14 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
7 Functions
7.1 Display
The display provides information on measurement values, diagnostics, and system
information.
7.1.1 Menu structure
The menu is divided into 3 sections: start-up, waiting for data, and operation.
During start-up, the Gateway software version can be read.
Every time the Gateway has been re-booted it will wait up to 30 minutes until the rst Monitor
has been detected. When the rst Monitor has been detected the display will jump to
operation and show the Data view. By pressing the info button, the next Monitor’s data will be
shown.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 15
7.1.2 Menu content

16 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
7.1.3 Display information
XXX Symbol Description
Monitor ID XXXXX Unique ID on the Monitor, must be set-up in conguration le
Test mode When symbol is visible, Monitor is in Test mode.
Relay status
When lines are unconnected, relay is OFF
When lines are connected, relay is ON
Monitor
battery level
<5% (6 months) - Plan Monitor change for the near future
<20% (2 years)
<50% (5 years)
<100% (10 years)
Signal
strength
Signal too weak and will cause intermittent operation.
Low signal. Distance/obstructions on the limit.
High signal
Temperature XX°C Celsius degrees °C
Water level X/5 Level 1-5
Alarm YES/NO IF YES, alarm will be shown in the alarm list.
Version X.XX Monitor software version
7.2 Info button
The info button is used for performing several actions. See table below.
Next menu Short push
Clear alarm (Alarm list on display) Hold for 2 seconds
Remove SD card Hold for 5 seconds
Reboot Gateway Hold for 9 seconds

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 17
7.3 Relay
The relay functionality is parametrized in the Cong le.
Relay modes
OFF Default mode
Alarm roof Blocked drain, Blocked sensor
Alarm Monitor Low battery, Lost connection, Internal leak
Alarm Roof
and Monitor
Blocked drain, Blocked sensor, Low battery, Lost connection,
Internal leak
Temp One setpoint For application where only one setpoint is needed
Temp Two setpoints For application where two setpoints are needed
For more info on Alarm’s, see chapter 7.5 diagnostics
The parameters for the Temp modes, can be parametrized in the cong le, see Appendix 13.
Appending on the application, 1 or 2 set points can be selected, see below.
Hysteresis = 1C°
Setpoint 1= 4 C°
Hysteresis = 1C°
Setpoint 1= 4 C°
Setpoint 2 =2 C°

18 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
7.4 Measurement values
7.4.1 Water Level
5
4
3
2
10 mm
10 mm
10 mm
6 mm
3 mm
1
Water level is measured in
increments from sensor pin 1 to 5,
corresponding to 0-42mm water
level. Water level information is
updated every 30 minutes, or if the
water level values change.
7.4.2 Temperature
Temperature values are updated every 30 minutes. Should the temperature change more
than +/-4 degrees from last update, the temperature will be updated more frequently.
7.5 Diagnostics
There are two types of diagnostics, Roof diagnostics and Monitor systems diagnostics:
See detail in chapter 7.5.1 and 7.5.2
7.5.1 Roof diagnostics
The Gateway incorporates an algorithm that activates an alarm based on water level across
all Monitors over time. Two alarm conditions can be detected:
Roof Diagnostics
Blocked drain Appears when a Monitor detects higher water level than expected.
Remedy: Clean drain inlet from debris or pipe blockage
Blocked sensor Appears when a Monitor detects lower water level than expected.
Remedy: Excessive debris has settled around the sensor preventing it
from measuring. Remove debris from sensor area.

REV. 01 - OCTOBER 2020 - BLÜCHER®CONNECTED ROOF 19
Roof alarm settings
To compensate for different roof designs and conditions the behavior of the default algorithm
can be customized. This is to avoid unwanted alarms that relate to e.g. roof design aws.
You can offset the values at each monitor in the conguration le. This is done in “ROOF
ALARM SETTINGS”. You can offset each monitor +/- 5 levels.
Roof alarms setting
SAMPLE_NUMBER Numbers of samples
SAMPLE_PERIOD Time in minutes between samples
BLOCKED_SENSOR_LIMIT_FACTOR
BLOCKED_DRAIN_LIMIT_FACTOR
Sensitivity of the algorithm:
Higher value = Lower sensitivity
Lower value = Higher sensitivity
BLOCKED_SENSOR_ALARM_SET_COUNTER
BLOCKED_DRAIN_ALARM_SET_COUNTER
Counter of incidents that activate an alarm
BLOCKED_SENSOR_NOALARM_RESET_COUNTER
BLOCKED_DRAIN_NOALARM_RESET_COUNTER
Number of no incidents to set counter to 0.
AUTOMATIC_ALARM_REMOVING Alarm removes automatic after time
WATER_LEVEL_OFFSET_ID_1=0
WATER_LEVEL_OFFSET_ID_2=0
WATER_LEVEL_OFFSET_ID_3=0
WATER_LEVEL_OFFSET_ID_4=0
WATER_LEVEL_OFFSET_ID_5=0
WATER_LEVEL_OFFSET_ID_6=0
WATER_LEVEL_OFFSET_ID_7=0
WATER_LEVEL_OFFSET_ID_8=0
WATER_LEVEL_OFFSET_ID_9=0
WATER_LEVEL_OFFSET_ID_10=0
WATER_LEVEL_OFFSET_ID_11=0
WATER_LEVEL_OFFSET_ID_12=0
WATER_LEVEL_OFFSET_ID_13=0
WATER_LEVEL_OFFSET_ID_14=0
WATER_LEVEL_OFFSET_ID_15=0
WATER_LEVEL_OFFSET_ID_16=0
Offset: +/- 5 levels, see gure below.
If a monitor is installed lower than the drain
Offset water levels -X levels
If a monitor is installed higher than the drain
Offset water levels +X levels

20 BLÜCHER®CONNECTED ROOF - REV. 01 - OCTOBER 2020
7.5.2 Monitor Systems Diagnostics
Monitor systems diagnostics
Lost connection The RF alarm is set to appear whenever no communication/signal
between a Monitor and Gateway hasn’t been registered for more than
40 hours.
Battery alarm Appears if Monitor’s battery voltage goes below 2.4V or the battery
level is below 20%.
Internal water leak Appears if water is detected inside the Monitor box.
7.6 Monitor modes
7.6.1 Operation Mode
This operating mode is designed to maximize battery lifetime. Measurement values,
diagnostics, and system data are transmitted when measurement values change, or at least
every 30 minutes.
Out of the box, the Monitor operates in OPERATION MODE, ready to use and connect to a
Gateway.
7.6.2 Test Mode
In TEST mode, measurement values are sent every
3 minutes. This mode is used to debug or speed up
commissioning. To enter TEST mode, short circuit pin
0 and 1 for two seconds. Successful activation will
result in a short “beep” sound.
TEST mode will automatically end after 60 minutes.
7.7 Power loss / reboot
Power Loss: If a gateway loses power (power outlet or product reset), it will lose memory
and will await a new frame from a monitor. Furthermore, it will also reset any previous alarms
and the algorithm to determine alarms in the system.