Bosch OR80 OT User manual

Operating Instruction
Wall Hung Boiler Room Thermostat
OR80 OT Thermostat
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6 720 812 419-00.1O
6 720 812 419 (2014/07) en

2Contents
6 720 812 419(2014/07)OR80 OT Thermostat
Contents
1 Symbols and safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Product instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Electric parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Main functions and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Product appearance dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Installation steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Operation instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1 Temperature setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Time setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Function setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4 Weekly program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Contents | 3
6 720 812 419(2014/07) OR80 OT Thermostat
8 Basic operation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Temperature calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
10 Holiday mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
11 Boiler information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
12 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
13 Applicable models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4Symbols and safety precautions
6 720 812 419(2014/07)OR80 OT Thermostat
1 Symbols and safety precautions
1.1 Key to symbols
Warnings
The following keywords are defined and can be used in this document:
•NOTICE indicates a situation that could result in damage to property or
equipment.
•CAUTION indicates a situation that could result in minor to medium injury.
•WARNING indicates a situation that could result in severe injury or death.
•DANGER indicates a situation that will result in severe injury or death.
Important information
Additional symbols
Warnings in this document are identified by a warning triangle
printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent the risk are
not taken.
Thissymbolindicatesimportantinformationwherethereisnorisk
to people or property.
Symbol Explanation
▶ Step in an action sequence
Cross-reference to another part of the document
• List entry
– List entry (second level)
Table 1

Symbols and safety precautions | 5
6 720 812 419(2014/07) OR80 OT Thermostat
1.2 Safety instructions
General safety instructions
Thanks for using our room thermostat, please read the following content before
using:
▶ Please operate this product according to the instruction.
▶ Follow the manual to ensure complete functionality.
▶ Install and use heaters and other accessories according to the manual.
▶ Accessories only can be installed by authorized installer.
▶ Before installing the accessories:
Interrupt power supply of heaters and other members of bus (220~240V AC).
▶ Please inform the working way of the accessories, and guide customers to
operate.
▶ Heaterisswitchedonwhenfreezingdangeroccurs,andcomplywithanti-freezing
tips.
▶ The accessories must not be connected to power supply of 220~240V.
▶ Users should learn the product default setting (refer to “ 2.2 electric
parameters”).Don’t change default setting if not necessary.
▶ Mount the thermostat refer to “ 5.1 mounting position”
▶ HRT-196WT is powered by OT 3.3V low voltage.
▶ If the product breaks down within 12 months, we will fix it free of charge.
▶ There will be an extra charge under the follow situation even if it is within the
warranty expires:
– The fault is caused due to misuse or not follow the instruction;
– The destruction due to flood, fire, lighting strike;
– The damage caused during product dismantling and modification by the user
or mountainer not authorized by our company;
– Immersion in water, damp, collisions, extrusion which destroy the product.
▶ If you have any questions, please contact our manufacturer and agents.

6Product instruction
6 720 812 419(2014/07)OR80 OT Thermostat
Damage caused by operational errors
Operational errors may cause personal injury and/or property damage.
▶ Ensure that children should not operate and/or play with the equipment under
unattended circumstances.
▶ Ensure that the equipment only can be touched by personnel who can operate the
equipment correctly.
2 Product instruction
OR80 room thermostat has the advantages of easy operation and practicality.
2.1 Proper use
Please carefully read this manual before using, and operate according to
requirements specified in the manual.
2.2 Electric parameters
When communication between OT controller and wall-hung boiler is
abnormal, hint "Error E1" will appear, and other failures please refer
to error code introduction of wall hung boiler.
Temperature setting range 5~35 °C
Measurement precision 0.1 °C
Hysteresis temperature ± 1 °C
Display LCD Dot matrix
Temperature sensor NTC
Power supply OT low voltage
Table. 2

Product instruction | 7
6 720 812 419(2014/07) OR80 OT Thermostat
2.3 Main functions and features
• 24H Custom program function
• Recycle control temperature from Sunday to Monday
• Setting temperature in multi period per day
• Menu operation mode
• Temperature calibration
• 128*64 dot matrix display screen
• Display current temperature/time/week/working condition
• 1 user program function,7 fixed modes
• Program preview
• Fault display function
• Reset, quit operation function
2.4 Cleaner
▶ Use wet cleaning cloth to wipe the housing of controller. Must not use irritant or
corrosive detergent.

8Product description
6 720 812 419(2014/07)OR80 OT Thermostat
3 Product description
Fig. 1
[1] + (increase)/ Up key
[2] Boiler working condition
[3] Mode/Return key
[4] – (decrease)/ Down key
[5] Current mode
[6] Week date
[7] Current room temperature
[8] Program preview
[9] Heating working condition
[10] DHW water working condition
[11] Left key
1
3
4
2
11
13
15
12
14
7 56910 8
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Product appearance dimensions | 9
6 720 812 419(2014/07) OR80 OT Thermostat
[12] 24H Display
[13] Main menu/confirm/set key
[14] Current time
[15] Right key
4 Product appearance dimensions
Fig. 2
The back plate of room thermostat is a standard 86*86 design and can be mounted
in standard junction box or fixed on the wall.
8733201143-02.1O
135.4 0.5 21 0.3
89.2 0.4

10 Installation
6 720 812 419(2014/07)OR80 OT Thermostat
5 Installation
5.1 Mounting position
Avoid installing the thermostat close to fridge, radiator, kitchen, computer, window,
doorway or other over-cooling, over-heating and temperature changed frequently
areas. The best position to install the thermostat is a dry place which can precisely
reflect room temperature, and has low interference.
5.2 Installation steps
▶ Plug flathead screwdriver into recesses at product bottom, and move up to open
back cover, as shown in Fig. 3.
Fig. 3
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Installation | 11
6 720 812 419(2014/07) OR80 OT Thermostat
▶ Drill two holes from cable entries on the wall (space between hole centers is
60~80mm),fill the fitting expansion pipes, and then use fitting
screws(PA4*30mm) to fix the back cover, (see Fig. 4).
Fig. 4
▶ Connect wire to wire holder of PCB, and align four positioning buckles with four
square holes, then fix product onto the back cover, as shown in Fig. 5.
Fig. 5
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8733201143-05.1O

12 Operation instruction
6 720 812 419(2014/07)OR80 OT Thermostat
6Operation instruction
There are 6 function keys on OR80 OT room thermostat. Press the Prog key to enter
into main menu, press “+” and “-” key to choose function, and press “Prog” key to set
this function.
6.1 Temperature setting
The item “temperature setting” in main menu is used for setting temperature in three
modes:“+” and “-” keyisfor adjusting temperature, LEFT and RIGHT key is formoving
operation point position, and “Prog” key is used to save setting and return to last
menu.
Fig.6 Temperature setting
Default setting
Defrost temperature 5 °C
Economy temperature 17 °C
Comfortable temperature 20 °C
Table. 3
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Operation instruction | 13
6 720 812 419(2014/07) OR80 OT Thermostat
6.2 Time setting
Set current time and week under “Time/week”.
Fig. 7 Time setting
6.3 Function setting
“System Set” includes “Language”, “Temperature calibration”, “Sensor setting”,
“Boiler function” and “Restore factory defaults”.
• “Language” option includes CHINESE and ENG LISH;
• “Temperature calibration” is for correcting temperature;
• “Sensor setting” option is for selecting indoor temperature sensor and outside
temperature sensor;
• “Boiler function” option is used for setting “CH” and “DWH” working condition;
• “Restore factory defaults” can restore all temperatures and functions to default
values.
6720812419-05.1O
Main menu
Setting temp.
Time/week Set time/week
User prog. Hour
Sys settings 12 ˖00 MON
Weekly prog. 
Holiday mode
Boiler Info
Exit 

14 Operation instruction
6 720 812 419(2014/07)OR80 OT Thermostat
Fig. 8 Function setting
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Operation instruction | 15
6 720 812 419(2014/07) OR80 OT Thermostat
6.4 Weekly program
This function is used for setting temperature mode.
These modes include: office worker, comfort, economy, outing, morning shift,
middle shift, night shift and user-defined. User-defined mode is a custom program
mode (see part 7), other modes are set as follows:
office worker
Time period Temperature
08:00-12:00 Frost temperature
12:00-13:30 Comfort temperature
13:30-17:30 Frost temperature
17:30-08:00 Comfort temperature
Table. 4

16 Operation instruction
6 720 812 419(2014/07)OR80 OT Thermostat
Comfort
Time period Temperature
00:00-00:00 Comfort temperature
Economy
Time period Temperature
00:00-00:00 Economy temperature
Outing
Time period Temperature
00:00-00:00 Frost temperature
Table. 5

Operation instruction | 17
6 720 812 419(2014/07) OR80 OT Thermostat
Fig. 9 Weekly program
Morning
Time period Temperature
07:30-16:00 Frost temperature
16:00-07:30 Comfort temperature
Middle shift
15:30-00:00 Frost temperature
00:00-15:30 Comfort temperature
Night shift
23:30-08:00 Frost temperature
08:00-23:00 Comfort temperature
Table. 6
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18 Program
6 720 812 419(2014/07)OR80 OT Thermostat
7 Program
There are as many as 48 programmable time zones per day of this thermostat, and
user can set any temperature among the setting ranges in this 48 programmable
time zone. Following is a 6 programmable time zone example:
Fig. 10 Program
▶ Press “Prog” to enter main menu;
▶ Press ( - ) to select “User prog.”and press “Prog” to enter interface;
Time period Temperature setting
06˖00-11˖30 Economy temperature
11˖30-13˖00 Comfort temperature
13˖00-18˖00 Economy temperature
18˖00-23˖30 Comfort temperature
23˖30-03˖00 Economy temperature
03˖00-06˖00 Comfort temperature
Table. 7
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Program | 19
6 720 812 419(2014/07) OR80 OT Thermostat
▶ When the cursor is at 00:00, setting start time to 06:00 with ”>/<” key;
▶ Setting the time to 6:00 with “<” key.
Fig. 11
▶ Press “Mode” key to move the cursor to “comfort temperature”;
▶ Move the cursor to “start” -6:30 with “>”, repeat the above two steps to set the
temperature for the second time period as “comfort temperature”;
▶ Repeat the above operation to set the temperature of other time periods.
▶ Press “+” and “-” key to copy the temperature mode of last 30 minutes, for
instance: if the temperature mode of 06:00 and 06:30 are required the same,
users can easy set by directly pressing “+”.
▶ Save the last step and press “prog” to quit program. All program points will be
automatically save in “User Prog”;
▶ End programming.
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20 Basic operation procedure
6 720 812 419(2014/07)OR80 OT Thermostat
8 Basic operation procedure
For initial operation, please take the following steps:
▶ Please connect the room thermostat according to “section 5.1”.
▶ After thermostat is connected, LCD display board is shown as below:
Fig. 12
Press “Prog” to enter main menu.
▶ Choose “Setting temp” and press “Prog” key to enter temperature setting. User
can set temperature value for three modes: anti-frost mode, economy mode and
comfort mode :
– De-Frost temperature: This temperature is suitable for the situation when
people stay out for a long time (such as: on vacation). And this mode will not
only save energy but also can assure boiler’s and pipeline’s safety. Setting
temperature range: 5-35 °C Default: 5 °C.
– Economy temperature: this mode is suitable for the situation when user can
come home in a short time (such as: working hours).Setting temperature
range:5-35 °C.Default point: 17 °C.
– Comfort temperature: this temperature is suitable for the situation when
people stay at home. Setting temperature range:7-35 °C.Default point: 20 °C.
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