Buderus PW 500 Buffer Cylinder Installation Guide

PW 500…1000.6 (W) | PW 750.6 PN6 (W)
P 500…1000.6 (W) | P 500…1300.6 M(W) |
PR 500…1300.6 E(W) | PNR 500…1300.6 E(W)
PRZ 500…1000.6 E(W) | PNRZ 750…1000.6 E(W)
Read carefully before carrying out installation and maintenance.

PW 500 Buffer Cylinder

Key to symbols and safety instructions
1.1 Key to symbols
Warnings
**** Warnings in the text are indicated by a warning triangle. In addition, signal words are used to indicate the type and seriousness of the ensuing risk if measures for minimising the danger are not taken.
The following keywords are defined and can be used in this document:

• NOTICE indicates that material damage may occur.
• CAUTION indicates that minor to medium personal injury may occur.
• WARNING indicates that serious or life-threatening personal injury may occur.
• DANGER indicates that severe to life-threatening personal injury will occur.

Important information
** This symbol indicates important information where there is no risk to people or property.
Additional symbols**

Table 1
1.2 Safety instructions
General
These installation and maintenance instructions are intended for contractors.
Failure to observe the safety instructions can result in serious injuries.
▶ Read and follow the safety instructions.
▶ Install and commission cylinders and their accessories according to the relevant installation instructions.
Transport and installation
▶ At least two persons are required for transportation and installation!
Siting and conversion
▶ Fire hazard! Soldering and welding can lead to a risk of fire as the thermal insulation is combustible. The buffer cylinder must only be installed or converted by an authorised contractor.
▶ Never use open expansion vessels.
▶ Never close the pressure relief valve!
Function
▶ Observe these installation and maintenance instructions to ensure trouble- free operation.
▶ Risk of scalding! When the buffer cylinder is in operation, temperatures over 60 °C can occur.
Service work
▶ Recommendation to customers: Arrange a maintenance and inspection contract with an approved contractor.
▶ Only use genuine spare parts.
Instructing the customer
▶ Instruct the user in how to operate the buffer cylinder and draw their attention to safety-related points.
▶ Hand over the installation and maintenance instructions to the user for safekeeping near the heating system.

Product information

2.1 Product Description
These installation and maintenance instructions apply to the following types:
Buffer cylinder:

• PW 750.6 PN6 for increased operating pressure

• PW 500, 750, 1000.6 (W) (special version for heat pumps)

• P 500, 750, 1000.6 (W)

• P 500, 750, 990, 1000, 1300.6 M(W)
  Buffer cylinder with connections for temperature-dependent return feed and connection for a immersion heater:

• PR 500, 750, 1000, 1300.6 E(W)
  Solar buffer cylinder with connections for temperature-dependent return feed and connections for the solar system and immersion heater:

• PNR 500, 750, 1000, 1300.6 E(W)
  Heat pump buffer cylinder with connections for temperature-dependent return feed and connections for the immersion heater:

• PRZ 500, 750, 1000.6 E(W)
  The PRZ 500, 750, 1000.6 E(W) is also equipped with a separating plate. The separating plate makes it possible to divide the interior of the cylinder into standby and heating areas. In addition, the flow feed lance ensures that the heat pump inflow remains stable. Special flow and return pipes in the heating areas ensure a low temperature loss.
  Heat pump buffer cylinder with connections for temperature-dependent return feed and connections for the solar system and immersion heater:

• PNRZ 750, 1000.6 E(W)
  The PNRZ 750, 1000.6 E(W) also has two separating plates. The separating plates make it possible to divide the interior of the cylinder into standby, heating and solar areas. In addition, the flow feed lance  ensures that the heat pump inflow remains stable. Special flow and return pipes in the heating areas ensure a low temperature loss.

Table 2 Connections (Fig. 1, page 58)
2.2 Scope of delivery
500 litre cylinder

• Storage cylinder made of PU rigid foam

• Thermal insulation:
  – ErP “B”: Additional thermal insulation 40 mm
  – ErP “C”: Foil jacket on flexible foam underlayer

• Casing lid

• Upper insulation

• Technical documents

750…1300 litre cylinder

• Storage cylinder

• PU rigid foam halves

• Thermal insulation:
  – ErP “B”: Polystyrene jacket, packaged separately
  – ErP “C”: Foil jacket on flexible foam underlayer

• Casing lid

• Upper insulation

• Floor insulation

• Bag of small parts
  – Fleece strip
  – Fleece circular blank
  – Compass and plug

• Technical documents

2.3 Determined use
These buffer cylinders may only be filled with heating water and used in sealed heating systems.
The buffer cylinders can be used for indirect potable water heating via a freshwater station.
Only fill solar heat exchangers with propylene glycol/water mixtures (heat transfer medium L or LS). The use of any other heat transfer medium is not permitted.
2.4 Specifications

• Technical data (Fig. 1, page 58 and Fig. 2, page 59).
• Pressure drop diagram for solar heat exchanger ( Fig. 3, page 60).

2.4.1 Permitted maximum values

Temperature-dependent feed flow rate:

Maximum 5 m3/h, function successfully tested up to:

| m3/h| –| 1.5| 1.5| –

Table 3 Permitted maximum values
2.4.2 Data plate
The data plate is located on the left, next to the connections
( Fig. 15, [2], page 64).

Table 4 Information on the data plate
2.5 Product data for energy consumption
The following product data meets the requirements of EU Regulations No. 811/2013 and No. 812/2013, which supplement Directive 2010/ 30/EU.

Part number| Product type| Cylinder volume (V)| Heat retention loss (S)| Energy efficiency class 1)
---|---|---|---|---
7735501282| PW 500.6-C| 500 l| 102 W| C
7735500817| PW 500.6 W-C| 500 l| 102 W| C
7735500820| PW 500.6-B| 500 l| 75 W| B
7735500821| PW 500.6 W-B| 500 l| 75 W| B
7735501686| PW 750.6S-B| 743 l| 88 W| B
7735500828| PW 750.6-C| 743 l| 113 W| C
7735500829| PW 750.6 W-C| 743 l| 113 W| C
7735501687| PW 1000.6S-B| 954 l| 93 W| B
7735500836| PW 1000.6-C| 954 l| 137 W| C
7735500837| PW 1000.6 W-C| 954 l| 137 W| C
7735501688| PW 750.6 PN6S-B| 732 l| 88 W| B
7735500844| PW 750.6 PN6-C| 732 l| 113 W| C
7735500845| PW750.6PN6W-C| 732 l| 113 W| C
7735500848| P 500.6-C| 500 l| 107 W| C
7735500849| P 500.6 W-C| 500 l| 107 W| C
7735500852| P 500.6-B| 500 l| 80 W| B
7735500853| P 500.6 W-B| 500 l| 80 W| B
7735501689| P 750.6S-B| 743 l| 91 W| B
7735500860| P 750.6-C| 743 l| 115 W| C
7735500861| P 750.6 W-C| 743 l| 115 W| C
7735501690| P 1000.6S-B| 954 l| 94 W| B
7735500868| P 1000.6-C| 954 l| 139 W| C
7735500869| P 1000.6 W-C| 954 l| 139 W| C
7735500872| P 500.6 M-C| 500 l| 110 W| C
7735500873| P 500.6 MW-C| 500 l| 110 W| C
7735500876| P 500.6 M-B| 500 l| 82 W| B
7735500877| P 500.6 MW-B| 500 l| 82 W| B
7735501691| P 750.6 MS-B| 743 l| 91 W| B
7735500884| P 750.6 M-C| 743 l| 117 W| C
7735500885| P 750.6 MW-C| 743 l| 117 W| C
7735501692| P 1000.6 MS-B| 954 l| 99 W| B
7735500892| P 1000.6 M-C| 954 l| 141 W| C
7735500893| P 1000.6 MW-C| 954 l| 141 W| C
7735501693| P990.6 MS-B| 982 l| 92 W| B
7735500896| P 990.6 M-C| 982 l| 131 W| C

Table 5 Product data for energy consumption

Part number| Product type| Cylinder volume (V)| Heat retention loss (S)| Energy efficiency class 1)
---|---|---|---|---
7735500897| P 990.6 MW-C| 982 l| 131 W| C
7735501694| P1300.6 MS-B| 1258 l| 111 W| B
7735500900| P 1300.6 M-C| 1258 l| 158 W| C
7735500901| P 1300.6 MW-C| 1258 l| 158 W| C
7735500904| PR 500.6 E-C| 500 l| 108 W| C
7735500905| PR 500.6 EW-C| 500 l| 108 W| C
7735500908| PR 500.6 E-B| 500 l| 80 W| B
7735500909| PR 500.6 EW-B| 500 l| 80 W| B
7735501695| PR 750.6 ES-B| 743 l| 88 W| B
7735500916| PR 750.6 E-C| 743 l| 115 W| C
7735500917| PR 750.6 EW-C| 743 l| 115 W| C
7735501696| PR 1000.6 ES-B| 954 l| 94 W| B
7735500924| PR 1000.6 E-C| 954 l| 139 W| C
7735500925| PR 1000.6 EW-C| 954 l| 139 W| C
7735501697| PR1300.6 ES-B| 1258 l| 108 W| B
7735500928| PR 1300.6 E-C| 1258 l| 156 W| C
7735500929| PR 1300.6 EW-C| 1258 l| 156 W| C
7735500932| PNR 500.6 E-C| 495 l| 110 W| C
7735500933| PNR 500.6 EW-C| 495 l| 110 W| C
7735500936| PNR 500.6 E-B| 495 l| 82 W| B
7735500937| PNR 500.6 EW-B| 495 l| 82 W| B
7735501698| PNR 750.6 ES-B| 725 l| 91 W| B
7735500944| PNR 750.6 E-C| 725 l| 117 W| C
7735500945| PNR 750.6 EW-C| 725 l| 117 W| C
7735501699| PNR1000.6 ES-B| 932 l| 100 W| B
7735500952| PNR 1000.6 E-C| 932 l| 141 W| C
7735500953| PNR 1000.6 EW-C| 932 l| 141 W| C
7735501591| PNR1300.6 ES-B| 1233 l| 111 W| B
7735500956| PNR 1300.6 E-C| 1233 l| 158 W| C
7735500957| PNR 1300.6 EW-C| 1233 l| 158 W| C
7735500960| PRZ 500.6 E-C| 500 l| 106 W| C
7735500961| PRZ 500.6 EW-C| 500 l| 106 W| C
7735500964| PRZ 500.6 E-B| 500 l| 79 W| B
7735500965| PRZ 500.6 EW-B| 500 l| 79 W| B
7735501592| PRZ 750.6 ES-B| 743 l| 91 W| B
7735500972| PRZ 750.6 E-C| 743 l| 115 W| C

Table 5 Product data for energy consumption

Regulations

Part number| Product type| Cylinder volume (V)| Heat retention loss (S)| Energy efficiency class 1)
---|---|---|---|---
7735500973| PRZ 750.6 EW-C| 743 l| 115 W| C
7735501593| PRZ 1000.6 ES-B| 954 l| 100 W| B
7735500980| PRZ 1000.6 E-C| 954 l| 139 W| C
7735500981| PRZ 1000.6 EW-C| 954 l| 139 W| C
7735501594| PNRZ 750.6 ES-B| 724 l| 93 W| B
7735500988| PNRZ 750.6 E-C| 724 l| 119 W| C
7735500989| PNRZ 750.6 EW-C| 724 l| 119 W| C
7735501595| PNRZ1000.6ES-B| 931 l| 100 W| B
7735500996| PNRZ 1000.6 E-C| 931 l| 143 W| C
7735500997| PNRZ1000.6EW-C| 931 l| 143 W| C

Table 5 Product data for energy consumption

1. for DHW treatment
   3Regulations
   Observe the following directives and standards:

• Local regulations

• EnEG (in Germany)

• EnEV (in Germany)
  Installation of, and equipment for, heating and water heating systems:

• DIN and EN standards
  – DIN 4753, part 1: DHW cylinders and DHW heating systems for potable and heating water; requirements, identification, equipment and testing
  – DIN 4753, part 5: Thermal insulation of DHW cylinders up to 1000 l nominal capacity – requirements and testing (product standard)
  – DIN EN 12828: Heating systems in buildings – Design for DHW heating systems
  – DIN EN 12897: Water supply – regulation for cylinder DHW heaters (product standard) – DIN 18380: VOB

1. ; heating systems and central water heating systems
2. – DIN 18381: VOB
   ; gas, water, and waste water installation work within buildings
   – VDE regulations

Transport

DANGER: Risk to life through falling load.
▶ Only use lifting cables that are in a faultless condition.
▶ Only insert hooks into the lifting eyes provided.
Tilting danger with forklift trucks or pallet trucks.
WARNING: Risk of injury through carrying heavy loads and inadequately securing loads for transport!
▶ At least two persons are required for transportation and installation.
▶Use suitable means of transport.
▶ Secure the buffer cylinder to prevent it falling.

1. VOB: German contract construction procedures – Part C: General technical specifications in construction contracts (ATV)
   A crane is appropriate for transport. Alternatively the cylinder can be transported using a pallet truck or forklift truck ( Fig. 4, page 60).
   **** Applies to 750…1300 litre cylinders:
   ▶ Remove the foil jacket and rigid foam shells before transporting and store in a clean place.

assembly

▶ Check that the buffer cylinder is complete and undamaged.
5.1 Installation location
NOTICE: Risk of material damage from frost and corrosion.
▶ Site the buffer cylinder in a dry, frost-free room.
If there is a danger that water may collect on the floor of the installation site:
▶ Position the buffer cylinder on a plinth.
▶ Site the buffer cylinder in dry, ventilated internal areas that are free from the risk of frost.
▶ Observe the minimum room height ( table 6, page 58, table 7, page 59 and table 8, page 60) and minimum wall clearances
( fig. 5, page 61) in the installation location.
5.2 Installing the temperature sensor
500 litre cylinder ( Fig. 7, page 62)
Assembly is also possible once the insulation has been installed.
▶ Observe the technical guide when positioning the sensor.
▶ Apply heat conducting paste to the contact surfaces.
▶ Insert the temperature sensor with installation set (part of the sensor set) in the sensor pocket until it comes to a stop.
▶ Mark the temperature sensor leads at the end of each lead according to sensor use.
▶ Route the sensor lead to the controller, ensuring it will be possible to install the insulation.
▶ Electrical connection to the sensor leads. Observe the controller installation instructions during this process.
750…1300 litre cylinder ( Fig. 8, page 62)
▶ Observe the technical guide when positioning the sensor.
▶ Apply heat conducting paste to the contact surfaces.
▶ Insert the temperature sensor into the spring clip so that the entire length of the sensor surface makes contact with the storage cylinder.
▶ Mark the temperature sensor leads at the end of each lead according to sensor use.
▶ Route the sensor lead to the controller, ensuring it will be possible to install the insulation.
▶ Electrical connection to the sensor leads. Observe the controller installation instructions during this process.
5.3 Positioning the buffer cylinder, fitting the thermal insulation
NOTICE: Material damage from a low ambient temperature.
If the ambient temperature is below 15 °C, the foil jacket tears while closing the zipper.
▶ Warm the foil jacket (in a warmed-up room) to above 15 °C.
The following applies for the ErP “B” cylinder with one connection level:
▶The hydraulic connection can be established before the thermal insulation is installed.
The following applies for the ErP “B” cylinder with two connection levels:
▶ If necessary remove perforated material on connector pipes.
▶ Covers are available (as accessory) for the slots
500 litre cylinder ( Fig. 9, page 63)
▶ Remove packaging.
▶ Remove casing lid and top insulation.
▶ Remove thermal insulation (ErP “B”) or foil jacket (ErP “C”) and store provisionally.
▶ Unscrew the cylinder from the pallet.
▶ Optional: fit the adjustable feet (accessory).
▶ Position and align the cylinder.
▶ Fitting the thermal insulation
– ErP “B”: establish hydraulic connection, fit separate thermal insulation. Close with Velcro fastener
– ErP “C”: fit foil jacket. Close the zipper.
▶ Place the top insulation and casing lid on.
▶ Remove the plug from the connector.
750-1300 litre cylinder ( Fig. 9, page 63)
▶ Remove packaging.
▶ Provisionally store bag with accessories and floor insulation panel.
▶ Remove casing lid and top insulation.
▶ Provisionally store thermal insulation:
– ErP “B”: separately packaged polystyrene jacket.
– ErP “C”: remove foil jacket.
▶ Remove fixing straps.
▶ Pull off the PU rigid foam halves.
▶ Unscrew cylinder from the pallet.
▶ Lift the cylinder off the pallet.
▶ Optional: fit the adjustable feet (accessory).
▶ Position and align the cylinder.
▶ Attach floor insulation panel, paying attention to the slots for the feet.
▶ Fitting the thermal insulation
– Fit PU rigid foam half-shells, draw together using a ratchet strap, tap. Fit fixing straps. Remove ratchet strap.
– ErP “B”: fit fleece strip round the connector pipes and attach fleece circular blank for the cover and push in firmly. Make a hole for the connector in the polystyrene jacket by cutting round the perforation with a cutter knife. Fold down top layer, unroll to the right. Pay attention to the position of the connector. Close Velcro fastener
– ErP “C”: fit foil jacket, pull zipper shut
▶ Place the top insulation and casing lid on.
▶Mount logo.
▶ Remove the plug from the connector.
5.4 Hydraulic connection
Before installing pipework:
▶ Install the thermal insulation/foil jacket.
Observe the technical guide when establishing the hydraulic connection.
DANGER: Risk of fire from soldering and welding!
▶ As far as possible, carry out any soldering and welding work before fitting the thermal insulation.
▶ Take appropriate protective measures when soldering and welding as the thermal insulation is combustible (for example, cover the thermal insulation).
▶ Check the integrity of the thermal insulation after completing work.
NOTICE: Water damage from leaking connections.
▶ Fit all connection lines free from stress.
To prevent damage to the buffer cylinder:
▶ Use installation material on the heating circuit side that is heatresistant up to 90 °C.
▶ For solar connections, use installation material that is heat-resistant up to 130 °C.
▶ Only use the buffer cylinder in sealed systems.
▶ Never use open expansion vessels.
We recommend using screw fittings with shut-off valves to connect lines to the cylinder.
▶ Install a drain valve on site at the lowest point of the lower connection.
5.5 Immersion heater (accessory)
If an immersion heater is used:
▶( Fig. 22, page 66)
– ErP “C”: cut round perforation to create recess.
– ErP “B”: insert compasses, turn to cut out circular piece.
▶ Install the immersion heater in accordance with the separate installation instructions.
▶ When the cylinder installation is complete, inspect the earth connection (including the metal connection fittings).

Commissioning

NOTICE: Risk of system damage from excessive pressure.
▶ Observe the maximum operating pressure ( tab. 3, page 32).
Commissioning must be performed by an authorised contractor.
▶ Check the tightness of all connections ( Fig. 23, page 67).
▶ Commission all assemblies and accessories as specified in the manufacturer’s technical documents.

Shutdown

DANGER: Risk of scalding from hot water!
▶ Allow the buffer cylinder time to cool down sufficiently after being shut down.
NOTICE: Cylinder damage from frost!
If there is a risk of frost when you are away from home, we recommend the following:
▶ Leave the buffer cylinder operational. or
▶ Take the buffer cylinder out of operation and drain it.
▶ If an immersion heater has been installed (accessory), isolate the buffer cylinder from the power supply.
▶ Switch off the temperature controller at the control unit.
▶ Fully drain the buffer cylinder.
▶ Shut down all assemblies and accessories of the heating system as specified in the manufacturer’s technical documentation.
▶ Open the system drain valve.
▶ For ventilation, open the air vent valve. The air vent valve is located at the top of the cylinder ( Fig. 15, [1], page 64).
▶ Close the shut-off valves.
▶ Depressurize the heat exchanger.
▶ Drain and blow out the heat exchanger.
To prevent corrosion:
▶ Leave the connector pipes open, so that the interior can dry out well.

Environment/disposal

Environmental protection is a key commitment of the Bosch Group.
Quality of products, efficiency and environmental protection are equally important objectives for us. All legislation pertaining to the environmental protection is strictly observed. To protect the environment we use the best possible technology and materials, subject to economic considerations.
Packaging
Where packaging is concerned, we participate in country-specific recycling systems that ensure optimum recycling. All of our packaging materials are environmentally compatible and can be recycled.
Used appliances
Old appliances contain materials that should be recycled.
The relevant assemblies are easy to separate and all plastics are identified. In this way the individual assemblies can be easily sorted and directed to recycling or disposal.

Service work

With buffer cylinders, apart from visual checks, no particular maintenance or cleaning work is necessary.
▶ Check all connections externally for leaks once a year.
▶ In the event of a fault, contact an approved contractor or the customer service.

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PW… /P… /P…M/ PR…/PNR…/

PRZ../ PNRZ…

| __

H1

| __

H2/H3

| __

H4*

| __

H5/E

| __

H6/H7

| __

H8

| __

H9/H10/VLs

| __

H11/H12/RLs

| __

H13

---|---|---|---|---|---|---|---|---|---
500| 1620| 1440| –| 1110| 950| –| 710| 270| 130
750| 1630| 1440| –| 1110| 950| 830| 710| 270| 130
990| 1630| 1440| –| –| 950| –| 710| 270| 130
1000| 2070| 1880| 1550| 1300| 1150| 950| 800| 270| 130
1300| 2070| 1880| 1550| 1300| 1150| –| 800| 270| 130

500

| __

750

| 750

PN6

| __

1000

| __

500

| __

750

| __

1000

| __

500

| __

750

| __

990

| __

1000

| __

1300

| __

500

| __

750

| __

1000

| __

1300

D2| [mm]| 650| 790| 790| 790| 650| 790| 790| 650| 790| 900| 790| 900| 650| 790| 790| 900
V1| [l]| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –
V2| [l]| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –
V3| [l]| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –
V4| [l]| 500| 743| 732| 954| 500| 743| 954| 500| 743| 982| 954| 1258| 500| 743| 954| 1258
V5| [l]| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –
 | m²| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –| –
Insulation ErP Class C
D1| [mm]| 780| 960| 960| 960| 780| 960| 960| 780| 960| 1070| 960| 1070| 780| 960| 960| 1070
H| [mm]| 1775| 1820| 1820| 2255| 1175| 1820| 2255| 1175| 1820| 1845| 2255| 2280| 1775| 1820| 2255| 2280
A| [kg]| 83| 120| 212| 141| 85| 122| 143| 87| 120| 148| 145| 167| 90| 130| 151| 173
B| [kg]| 583| 863| 944| 1095| 585| 865| 1097| 587| 863| 1130| 1099| 1425| 590| 873| 1105| 1431
Insulation ErP Class B
D1| [mm]| 850| 1030| 1030| 1030| 850| 1030| 1130| 850| 1030| 1130| 1030| 1130| 850| 1030| 1030| 1130
H| [mm]| 1775| 1820| 1820| 2255| 1175| 1820| 2255| 1775| 1820| 1845| 2255| 2280| 1775| 1820| 2255| 2280
A| [kg]| 86| 129| 221| 151| 88| 131| 153| 90| 129| 160| 155| 181| 93| 139| 161| 187
B| [kg]| 586| 872| 953| 1105| 588| 874| 1107| 590| 872| 1142| 1109| 1439| 593| 882| 1115| 1445
 |  | PNR…E| PRZ…| PNRZ…E
---|---|---|---|---
 |  | 500| 750| 1000| 1300| 500| 750| 1000| 750| 1000
D2| [mm]| 650| 790| 790| 900| 650| 790| 790| 790| 790
V1| [l]| –| –| –| –| 300| 445| 620| 325| 445
V2| [l]| –| –| –| –| –| –| –| 115| 170
V3| [l]| –| –| –| –| 200| 305| 345| 305| 345
V4| [l]| 495| 725| 932| 1233| 500| 743| 954| 724| 931
V5| [l]| 11| 14| 17| 20| –| –| –| 14| 17
 | [m²]| 1,6| 2,1| 2,5| 2,9| –| –| –| 2,1| 2,5
Insulation ErP Class C
D1| [mm]| 780| 960| 960| 1070| 780| 960| 960| 960| 960
H| [mm]| 1775| 1820| 2255| 2280| 1775| 1820| 2255| 1820| 2255
A| [kg]| 111| 162| 189| 216| 96| 137| 158| 173| 200
B| [kg]| 606| 887| 1121| 1449| 596| 880| 1112| 897| 1131
Insulation ErP Class B
D1| [mm]| 850| 1030| 1030| 1130| 850| 1030| 1030| 1030| 1030
H| [mm]| 1775| 1820| 2255| 2280| 1775| 1820| 2255| 1820| 2255
A| [kg]| 114| 171| 199| 230| 99| 146| 168| 182| 210
B| [kg]| 609| 896| 1131| 1463| 599| 889| 1122| 906| 1141

Bosch Thermotechnik GmbH
Sophienstrasse 30-32
D-35576 Wetzlar
www.buderus.com

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