Bosch THERM 1000 O Installation And Use Manual
Installation and use manual
Gas tankless water heater
THERM 1000 O
6720818788-00.3V
W6 / W10 KB
6 720 818 788 (2015/11) EG
Please read the installation instructions before installing the appliance!
Please read the operating instructions before operating the appliance!
Please observe the safety instructions in the operating instructions!
The installation site must meet the requirements for sufficient ventilation!
We suggest that the installation should be carried out by an authorized company Bosch!
6 720 818 788 (2015/11)
2 | Index
Index
1 Symbology . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Symbology . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . 3
2 Instructions regarding the appliance . . . . . 4
2.1 Category and type . . . . . . . . . . . . . . . 4
2.2 List of models . . . . . . . . . . . . . . . . . . . 4
2.3 Material contained in the package . . . 4
2.4 Description of the appliance . . . . . . . 4
2.5 Rating plate . . . . . . . . . . . . . . . . . . . . . 4
2.6 Special accessory (not contained in the
package) . . . . . . . . . . . . . . . . . . . . . . . 4
2.7 Dimensions . . . . . . . . . . . . . . . . . . . . . 5
2.8 Appliance construction . . . . . . . . . . . 6
2.9 Electrical schema . . . . . . . . . . . . . . . . 7
2.10 Operation description . . . . . . . . . . . . 8
2.11 Technical features . . . . . . . . . . . . . . . 9
3 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Before operating the appliance . . . . 10
3.2 Batteries . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Switch on and off . . . . . . . . . . . . . . . 10
3.4 Output adjustment . . . . . . . . . . . . . . 11
3.5 Temperature adjustment . . . . . . . . . 11
3.6 Bleeding of the appliance . . . . . . . . . 11
3.7 Cleaning the front of the appliance . 11
3.8 Fault diagnosis . . . . . . . . . . . . . . . . . 12
4 Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Installation (only by qualified technicians) . .
12
5.1 Important information . . . . . . . . . . . 12
5.2 Choice of installation site . . . . . . . . . 12
5.3 Fixing of the appliance . . . . . . . . . . . 14
5.4 Water connection . . . . . . . . . . . . . . . 14
5.5 Gas connection . . . . . . . . . . . . . . . . . 14
5.6 Start-up . . . . . . . . . . . . . . . . . . . . . . . 15
5.7 Remove the front . . . . . . . . . . . . . . . 15
6 Adjustments (only by qualified technicians)
15
6.1 Adjustment of the appliance . . . . . . 15
6.2 Conversion to another type of gas . . 15
7 Maintenance (only by qualified technicians)
16
7.1 Periodic maintenance works . . . . . . 16
7.2 Combustion gas control device . . . . 16
8 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9 Environmental protection . . . . . . . . . . . . . . 19
6 720 818 788 (2015/11)
Symbology | 3
1 Symbology
1.1 Symbology
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
Other symbols
1.2 Safety instructions
If you smell gas:
▶ Close the gas shut-off valve.
▶ Open the windows.
▶ Do not switch on any electrical switches.
▶ Extinguish possible flames.
▶ Contact from another location to the gas company and to an
authorized service Bosch.
If you smell gas flue:
▶ Switch the appliance off.
▶ Open doors and windows.
▶ Request a visit from an authorized service Bosch.
Assembly, modifications
▶ The appliance's assembly, as well as the installation
modifications can only be carried out by an authorized
service Bosch.
▶ The ducts that conduct the gas flue should not be modified.
▶ Do not close or reduce the openings for air circulation.
Maintenance
▶ The maintenance of the appliance should only be carried out
by an authorized service Bosch.
▶ The user of the appliance should ensure, within regular
intervals, technical interventions of control and
maintenance of the appliance.
▶ The appliance should be maintained annualy.
▶ Only original spare parts should be used.
Highly flammable and explosive materials
▶ Flammable materials should not be stored or used (paper,
solvents, paint, etc.) near the appliance.
Combustion air and ambient air
▶ To avoid corrosion, combustion air and ambient air should
be free from aggressive substances (e.g. halogenated
hydrocarbons which contain chlorine and fluorine
compounds).
Clarifications for the user
▶ Inform the user about the operation and handling of the
appliance.
▶ Inform the user that he/she should not perform
modifications or repairs on their own.
Damages caused by errors of use
Errors of use may cause material or personal damages.
▶ Ensure that children do not play with the appliance or use it
without the supervision of an adult.
▶ Ensure that the users are well instructed on how to operate
the appliance.
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.
This symbol indicates important information
where there is no risk to people or property.
Symbol Meaning
▶ Operational step
Reference in another point in the document
• Enumeration/Item of a list
– Enumeration/Item of a list (level 2)
Table 1
6 720 818 788 (2015/11)
4 | Instructions regarding the appliance
2 Instructions regarding the appliance
2.1 Category and type
2.2 List of models
[W] Gas tankless water heater
[D] Display hot water temperature
[6] Capacity (l/min)
[B] Electronic ignition powered by type LR20 batteries
(2x1.5V)
[GN] Appliance set for natural gas H
[GLP] Appliance set for liquefied petroleum gas
2.3 Material contained in the package
• Gas heater
• Fixing elements
• Installation and use manual
2.4 Description of the appliance
• Appliance to fix onto walls,
• Ignition by electronic device controlled by the opening of the
water valve,
• LPG/Natural gas burner.
• Safety devices:
– Ionization sensor against accidental extinction of the
burner flame,
– Control device of the combustion gases that switches the
appliance off if the conditions of gas flue exhaustion are
poor,
– Temperature limiter which avoids the overheating of the
combustion chamber,
– Relief and drain valve.
2.5 Rating plate
The rating plate is located on the cover of the appliance, on the
right side.
This plate has the indications on the performance of the
appliance, appliance's code, approval data and production
coded data (FD).
2.6 Special accessory (not contained in the
package)
• Conversion kit of natural gas for LPG and LPG for natural
gas. The conversion to another type of gas should only be
carried out by an authorized service BOSCH.
Model W6 / W10/ WD10 KB
Category II
2-3
Type B
11BS
Table 2
W 6 B GN/GLP
W/WD 10 B GN/GLP
Table 3
Code
numbers
Wobbe Index (Wi)
(15 °C)
Gas type
G20 45.67 MJ/m
3
Natural gas group 2H
G30 80.58 MJ/m
3
LPG
group 3B/P
Table 4
6 720 818 788 (2015/11)
Instructions regarding the appliance | 5
2.7 Dimensions
Fig. 1
6720818788-03.2V
Appliance A B C D E
Water inlet Gas inlet
Cold/Hot GN/GLP
W6 300 484 170 151 Ø 95 1/2” 1/2”
W10/WD10 320 526 170 220 Ø 115 1/2” 1/2”
Table 5 Dimensions in mm
6 720 818 788 (2015/11)
6 | Instructions regarding the appliance
2.8 Appliance construction
Fig. 2
[1] Flue pipe connection
[2] Control device of the combustion gases
[3] Chimney
[4] Temperature limiter
[5] Combustion chamber
[6] Ignition probes
[7] Burner
[8] Ignition unit
[9] Gas flow regulator
[10] Temperature Sensor (for WD model only)
[11] Electro valve 1
[12] Outlet hot water
[13] Gas inlet
[14] Fixation point
[15] Ionization probe
[16] Water flow regulator
[17] Batteries case
[18] Bleeder screw (pressure relief)
[19] Cold water inlet
1
2
3
5
6
4
7
8
9
15
14
10
12
11
13
6720818788-07.1V
16
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