Scheer MH 10 Micro User manual

revised 10/2021 - V 6
innovative heat systems
user guide
MH-water heater
MH 20 Micro L
MH 10/17
MH 15/23
MH 30/40
MH 10 Micro

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MH-SERIES
Dear customer,
thank you for choosing to install our MH-series into your vehicle.
With your purchase of the MH-series, you ensured for yourself, to have a heating system with currently the
highest technological standard and lowest fuel consumption.
The innovative and award-winning technology of our products with the “Blue Eciency®” burner, will
provide you with an especially user and maintenance friendly operation. This system will give you comfort
and highly reduced emissions.
The successfully proven blue-burner-system in“Duo-Block“ building technique, as well as the simple
operation over the boiler control eld, are very ecient and environmentally friendly.
We hope that, how to use the heating system and all of its functions are explained to you to your full
satisfaction, by the installing auto shop or service station. With this user guide we would like to give you
more information how to use it properly.
Please contact us for any questions or further information you need.
Your SCHEER-team
introduction
SCHEER
Heizsysteme & Produktionstechnik GmbH
Chausseestr. 16
D-25797 Wöhrden
Germany
Tel.: [phone]
Fax: + 49 (0) 4839 453
[e-mail]
www.scheer-heizsysteme.de
Note:
Always carefully follow SCHEER installation and repair instruction and heed all WARNINGS.
The heaters of the MH-series are type-tested and approved in accordance with the ECE Directives ECE R22 and
ECE R10.
SCHEER rejects any liability for problems and damage caused by the system installed by untrained
personnel.
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table of contents
introduction
table of contents
warning and safety signs (denition)
warning and safety signs
general operating instructions
control box A
control box M
heating controller
set unit function
control box warning lights
room thermostat (optional)
2
3
4
4
5
7
7
8
8
9
10
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warning and safety signs (denition)
The following table explains the used colors, words and their meaning used in this manual.
warning and safety signs
The use of the heater in areas with ammable materials can cause an explosion or a re. This can
cause serious injury or death.
• Never use the heater at fuel/gas stations or close to tanks with ammable content.
• Never use the heater at places with ammable vapors or combustible dust.
(e. g. close to: fuel, cole, wood dust, or grain storages)
• Never use the heater close to ammable materials.
(e. g. close to: dry gras and leafs, cardboard, paper etc.)
DANGER! Death or serious injury by re!
The use of the heater in non-ventilated areas can result in serious injury or death.
• Never use the heater in closed rooms (e.g. garage, storage).
• Never use the heater in closed rooms with a timer or tele start. (e.g. garage, storage)
DANGER! Death or serious injury by suocation!
(see also next page)
classication of the signal word according to ANSI Z535.4
signal word identication of hazard
NOTICE
Notice: [this header is] preferred to address practices
not related to personal injury. Used for property
damage.
CAUTION! Caution: Indicate[s] a hazardous situation which, if not
avoided, could result in minor or moderate injury.
WARNING! Warning: Indicate[s] a hazardous situation which, if not
avoided, could result in death or serious injury.
DANGER! Danger: Indicate[s] a hazardous situation which, if not
avoided, will result in death or serious injury.
Improper installation or improper repair can cause a re or the leakage of deadly carbon monoxide
leading to serious injury or death.
• The person to install and repair the heating system must have completed a SCHEER training course.
• Always follow all installation and repair instruction.
• Heed all warning and safety signs.
• All required technical documentations, tools, and equipment must be available for installation and
repair.
DANGER! Death or serious injury due to improper installation or repair.
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warning and safety signs
•
Surrounding temperatures higher than 110°C (230°F) can cause damage to the electronics.
• Never use or store the heater in areas of 110°C (230°F) or more.
NOTICE Risk of malfunction or damage by heat exposure!
•
If the water freezes in the heat circuit or fresh water supply system, it can cause damage to the
equipment.
• Make sure to have at least 20% of antifreeze mixed into the heating circuit water.
• In risk of frost, drain the fresh water out of a heat system with plate heat exchanger.
NOTICE Risk of malfunction or damage by frost!
general operating instructions
Note: SCHEER cannot be held liable for:
• Defects and damage, which are due to installation or repair by unauthorized and untrained persons.
• Failure to comply with the instructions and the warning/safety signs.
• The installation of non-original spare parts.
Please note the following general operating instructions after installing and during the use of the
MH-heating system:
• The heating system must be turned o before you get fuel at gas stations.
• The year of the rst start-up must be permanently marked on the identication plate.
• Make sure all existing shut-o valves of the fuel return line are open before using the system.
• Check the openings of the combustion air supply and exhaust pipe for dirt and clean if necessary.
• After replacing the vehicles cooling uid make sure to bleed the system of air thoroughly. Add cooling
uid when needed.
• After replacing the heating circuit water (solution) make sure to bleed the system of air thoroughly.
Add solution when needed. (at least 20% antifreeze)
• Make sure to use the fuel and operation power indicated on the identication plate.
• In case of heavy smoke development, unusual burner noise, or smell of fuel, disable the heating
system by removing its fuse. Operate the system only, after a technical inspection by a SHEER trained
person.
• Turn on the heating system at least once a month for 10 min.
• The heating system must be checked by a SCHEER trained person, before each heating season.
• Liability claims can only be asserted, if the claimant can prove adherence to the installation,
maintenance, and safety instructions.
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Disposal of old equipment
At the end of its service life the device has to be disposed of in accordance with national regulations.
It is recommended to contact a company specializing in waste disposal or contacting the disposal
department of your commune.
general operating instructions
WARNING!
To prevent misuse and the associated dangers, make your old equipment unusable before disposal. There-
for disconnect the device from the power supply and remove the power cable from the device. To dispose
the device, observe the regulations applicable in your country and in your commune.
WARNING!
Danger due to electrical current!
The device may only be operated on properly installed single sockets with protective contact.
Do not disconnect the mains cable from socket by pulling the cable, always touch the housing of
the mains plug.
The MH-heating systems are approved for the use of „diesel“ and „heating oil“. Any other type of fuel for
operating have to be in advance approved by the manufacturer SCHEER. The heaters are designed for 230 Volts.
The connection in the vehicle has to be fed from the battery of the vehicle via an inverter approved in road traf-
c within the scope of the ECE Regulation. Alternatively, the heater can also be done via a 230V direct supply
(for example: direct supply of the campsite).
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control box A
control box M
Item No.
control box A 0754481
STL* release
button
STL indicator
Burner demand
hot water (optional)
Radiators (optional)
Underoor heating (optional) Tank-Control
(if the tank is empty - lights up
red) (optional)
electric heating (optional)
*Safety temperature limiter
electric-
heating burner on / lock
burner request
electric-
heating
active
on / o
Polarity LED
STL LED
heating controller
Item No.
control box M-
single stage 0754486
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heating controller
Symbol for heat request Actual value boiler temperature
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warning lamp: safety-temperature-limiter (STL)
If the lamp lights, the (STL) was triggered by a too high operating temperature.
• Let the heating system cool down.
• Push the reset (STL) button all the way in. (followed by a click sound)
• The heating system is ready to start again.
In case the (STL) is triggered again, let the system be repaired by a SCHEER trained person.
warning lamp: burner
If the lamp lights, it was triggered by a malfunction of the burner.
• Press and hold the burner suppressor button briey for about 1 second, not longer than 2 seconds.
• The warning lamp of the burner will turn o and the burner is reset.
If the burner should switch to malfunction twice, please have a repair carried out by your specialist company.
• NOTICE Repeated emtying of fueltank can cause damage to the burner!
• If the heater is operated without fuel it can cause damage (e. g. on the oil nozzle).
control box warning lamp
• NOTICE
MH: warning lamp STL MH Micro: warning lamp STL
• NOTICE
MH Micro: warning light
burner with reset button
(additional reset button on
the control unit)
MH: reset button on the contol unit
NOTICE
Polarity: This light must be permanently lit green. Otherwise, connect with correct polarity.
Reverse polarity protection prevents the wrong polarity (reversal of polarity) in the DC power supply (reversal of
negative and positive poles) or AC power supply (reversal of outer conductor and neutral conductor) of a device
and can thus minimise possible damage. polarity (reversed polarity) and can thus minimise possible damage.
• NOTICE
Other mains modules and control boxes may only be used in consultation
with the manufacturer SCHEER.
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Room thermostat - WLAN (optional)
Please read these operating instructions for all information on the
installation and operation of your thermostat. Ensure that the
thermostat is installed and connected by a professionally qualied
person and that it complies with all regional regulations.
In the box you will nd:
1x Thermostat
1x QC Passed
2x Screws
1x external Floor Sensor (2.5m)
About the thermostat
The thermostat has been developed to control industrial, commercial,, civil or domestic hot water heating sys-
tems, such as radiatiors or underoor heating.
functions
• N etworking through Modbus and WLAN
• 0.5 ° C given
• Short-term memory in the event of a power failure
• 5 + 1 + 1 weekly program with 6 periods comprehensive time program
• Controllable by Amazon Echo, Google Home, Tmall Genie
dimensions
86
86
39
2613 26
26
Room thermostat Item No.
incl. WLAN connection 0170106
Technical Data
Power Supply 95~240VAC, 50~60Hz Timing error <1%
Current Load max 5A Shell Material PC + ABS (re proof)
Sensor NTC3950, 10k Installation Box 86x86mm square/
Europ. 60mm round
Accuracy ±0,5°C Wire Terminals 2*1,5mm² / 1x2,5mm²
Set Temp. Range: 5-35°C Protection Class IP20
Display Temp. Range 5~99°C Storage Temp -5~45°C
Ambient Temp.: 0~45°C Power Consumption <1,5W
Ambient Humidity: 5~95% RH (not condensing)
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Before starting the installation, make sure that
the power supply and all other connecting
cables are voltage-free!
NOTICE
Your thermostat is suitable for installation within a standard 86mm pattress box or European 60mm pattress
box.
Step 1
Keep power o.
Step 2
Remove the mounting Plate by rotating the LCD part.
Step 3
Connect power supply, with the appropriate terminals.
Installation
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Installation
Step 4
Fix the mounting plate into the wall with screws in the box.
Step 5
Fasten body of thermostat and the mounting plate through rotating.
Homescreen quick reference
day roomtemperature
heating period
AM / PM
time
downuppowerclock
mode
manual mode
time mode
heating active
ext. sensor active
set temperature
room temperature
lock
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operation
1. Power on/o: Press to turn the thermostat on/o.
2. Manual/ Time program mode: Touch to change between manual mode and program mode. In manual
mode, will show in the bottom left of the screen. In programmable mode, the period icon will show on
the right side.
3. Setting Temperature: In the time program mode the temperature can only be controlled by the set hea-
ting program. In the manual mode, press to set the desired temperature.
4. Adjusting/Setting the Clock: Touch the to set minute, hour and weekday (1 = Monday, 2 = Tuesday etc.)
by using the arrows. Press once more to conrm and exit.
5. Locking your Thermostat: Press and hold the for 5 seconds to lock/unlock your thermostat. In item
3 of the device parameters, you can select full lock( included).
6. Adjusting/setting the Program Schedules: When Wi-Fi connection is made, your thermostat will automa-
tically accept the program schedule made via the APP on your device (see below for detailed instructions)
To set the program schedules through your thermostat (NOT via your smartphone/tablet) simply follow the
instructions as below:
Please note: Setting the programme schedule through your thermostat can only be carried out if there is
no Wi-Fi connection between your thermostat and smartphone/tablet
7. Setting / adapting the time program on the thermostat: The time program can only be set on the device
if there is no active WLAN connection and time program mode is activated. Touch to change between
manual/ time program mode. In program mode, touch and hold the icon until the weekday schedule
settings appear (1 2 3 4 5 will show along the top of the screen). Use the arrows to adjust the„on“
time.
Press the icon and use the arrows to set the o time (2nd period).
Press the icon and use the arrows to set the temp. Repeat this process for periods 3 - 6.
Press the icon once more to enter the Saturday schedule settings (6 will show along the top of the
screen). Repeat the above process to set the periods as well as temp. as well as Sunday schedule. Press
once more to conrm and exit.
Default settings for program schedule
heating
periode
weekday
(Monday-Friday)
(1 2 3 4 5)
Weekend
(Saturday)
6
Weekend
(Sunday)
7
time temperature time temperatur time temperatur
period 1 06:00 AM 20°C 06:00 AM 20°C 06:00 AM 20°C
period 2 08:00 AM 15°C 08:00 AM 20°C 08:00 AM 20°C
period 3 11:30 AM 15°C 11:30 AM 20°C 11:30 AM 20°C
period 4 01:30 PM 15°C 01:30 PM 20°C 01:30 PM 20°C
period 5 05:00 PM 22°C 05:00 PM 20°C 05:00 PM 20°C
period 6 10:00 PM 15°C 10:00 PM 15°C 10:00 PM 15°C
A separate schedule may be set for weekdays (Mon - Fri) and for weekends (Sat or Sun).
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Change the system settings
Turn o the device.
Press and at the same time for 5 seconds to get to the system settings. Then press to cycle through the
available settings and use to change the parameter values. All changes will be saved automatically.
code function setting an options default
1 temperature
compensation
-7 bis +9°C {for internal sensor) -1
2 deadzone
temperature
1-5°C 1
3 button locking 00: all buttons locked exept on/o
01: all buttons locked
01
4 sensor types In: Internal Sensor (to control the temp.)
Ou: External Sensor (to control the temp.)
AL: Internal/ External Sensor (Internal sensor to
control the temp., external sensor to limit the
oor temp.)
AL
5 min. set tempature 5-15°C 05
code function setting an options default
6 max. set temperature 15-45 °C 35
7 display mode 00: display of set temp. and room temp.
01: display of only set temp. 00
8 low temperature protection setting 0-10°C 00
9 high temprature protection setting 25-70°C 45
A economy mode 00: non-energy saving mode
01: energy saving mode 0
B economy temprature 0-30°C 20
C standby brightness 3-99 20
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Wi - connection
Before using your Wi thermostat for the rst time, you must congure the Wi signal and settings through
your smartphone or tablet. This will allow communication between your connected devices.
Step 1: Download the APP„smart life“
Fig. 1-1 Fig. 1-2 IOS Fig. 1-3 Android
Search for IOS devices in the Apple Store, for Android devices in the Google Play Store for“Smart Life”and load
them. Alternatively, you can scan the QR code (Fig. 1-2).
step 2: Register your account
Fig. 2-1 Fig. 2-2 Fig. 2-3 Fig. 2-4
Open„Smart Life“, you will get a piece of notication (Fig2-1) Click Allow to go into the page of registration (Fig
2-2). Press register and enter your phone no. or email (Fig 2-3) then you can get a verication code. Input your
password and conrm (Fig 2-4) to complete your registration. lf you have an account, please log in.
Schritt 3: Connect your Wi signal
Connect in EZ mode. If your router does not support this or your Wi signal is weak and you can‘t establish a
connection to the thermostat, try the AP mode.
EZ-Modus
On your thermostat
Hold for eight (8) seconds. While the thermostat is switched o the backlight will be on and the icon will
ash one time per second.
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In the App
Fig. 3-1.1 Fig. 3-1.2 Fig. 3-1.3
Fig. 3-2 Fig. 3-3 Fig. 3-4
Press the„+“ on the upper right corner of the page (see Fig 3-1-1) to add your device. Click Conrm, when the
indicator rapidly blinks (Fig 3-2),f then select your network and go back to your app to enter the password of
your network Fig 3-3) and conrm. The app will connect automatically (Fig 3-4). This may typically take up to
5~90 seconds to complete. Your room name can be edited when the device is connected (Fig 4-4).
Wi - connection
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Fig. 4-1 Fig. 4-2 Fig. 4-3 Fig. 4-4
Then go to“Connect now” and establish a connection to the thermostat‘s WLAN network“SmartLife-XXXX”(Fig.
4-2 and 4-3). Return to the app and press„Connect now“ again. The app automatically connects to the room
thermostat (Fig. 3-4). This can take anywhere from 5 to 90 seconds. If the device is connected, you can change
the device name (Fig. 4-4) and add further thermostats.
AP-Modus
On you thermostat
With the device turned o, press for 8 seconds. The backlight turns on and the icon ashes once per
second. Press and hold again for 8 seconds. The symbol ashes every 3 seconds.
In the app
Press the„+“ symbol in the upper right corner of the app screen (Fig. 3-1-1 to 3-1-3) to add your device. Press
Conrm when the displayed indicator lamp ashes rapidly (Fig. 3-2). Select your WiFi network and enter your
WiFi password in the app to connect the thermostat to your WiFi network (Fig. 3-3).
Wi - connection
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Programming the termostat via APP
Fig. 5-1 Fig. 5-2 Fig. 5-3 Fig. 5-4
When your thermostat is connected successfully, it will display on the homescreen (Fig 5-1) of the APP. The
round button is to turn on/o your thermostat.
Click the three dots (upper right corner) (Fig. 5-2) to begin programming your thermostat.
• On / o switch : switches the device on and o.
• Locking / unlocking the buttons : If the button is green, the screen is locked, if it is grey, the screen is
unlocked
• Economy mode : in this mode, the temperature is maintained at 20 °C. This temperature can‘t be chan-
ged.
• Manual mode : In this mode, the room temperature can be set manually (time program deactivated)
• Time program mode: The temperature follows the temperatures set in the time program, depending on
the preset heating plan.
• The yellow slider can be used to set the room temperature in manual mode. The current room temperature
is displayed a few seconds after the adjustment.
• In time program mode, click on the Schedule Setting (at the bottom of the page) to go to the Schedule
page (see Fig. 5-2), where you simply click on the Working Days (Mon - Fri) and then click the time / temp to
adjust it to your preferred schedule.
• You can set the time and temperature for 6 periods (Fig. 5-3).
• After clicking the Weekend (Saturday - Sunday) settings at the top of the page, repeat the steps.
• Once your schedule is set, click SAVE and the app will send the schedule to the thermostat and report that
the schedule has been saved.
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More features and troubleshooting
Abb. 6-1 Abb. 6-2 Abb. 7-1 Abb. 7-2
If you use several room thermostats, you have the option of grouping these room thermostats in the app. So
you can set the temperature of all three devices at once.
To do so, press the three dots in the top right corner of the app (Fig. 5-2) and then „Create group“ (Fig. 6-1).
Select all the devices you want and conrm.
In addition to creating groups, the device name can also be changed in the menu. Your device can be shared
and information about your device can be obtained.
How do I share a device?
Option 1: Follow the steps in the previous section, but click on„Share device“ in the menu.
Option 2: Click on your prole at the bottom right on the app start page (Fig. 6-2). Select Device Sharing and
add the account you want to share a device with. Now you see the account you shared with and which device
you have shared. Any number of devices can be shared.
How to connect your device to Amazon Echo or Google Home?
Go to the menu and press Amazon Echo or Google Home. Follow the instructions on the screen.
Simple failure Handling
No. Phenomenons Handling
1 Power is on but the display stays o Check whether the connections between the LCD panel
and the thermostat body have come loose.
2Display lights up, but does not show
anything
Use a new LCD panel or new Power Unit Box to
replace the old one.
3Room tempreture massivly varies from
actual room temperature
Perform the temperature calibration in point 1 of the op-
tions for the high performance range
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SCHEER
Heizsysteme & Produktionstechnik GmbH
Chausseestr. 16
D-25797 Wöhrden
Germany
Tel.: + 49 (0) 4839 / 905-0
Fax.: [phone] / 453
[e-mail]
www.scheer-heizsysteme.de
top class heating systems
- MH-series -