Webasto BBW 46 Скачать руководство пользователя страница 10

Combustion Air Supply

The combustion air required must be drawn in from the out-
side of the vehicle.

The combustion air should be drawn in at a splash-water
protected location.

The combustion air intake opening must be so located that
the possibility of clogging due to contamination is remote.
It 

must not point in the direction of travel.

The combustion air line can be so routed that it features sev-
eral bends (total of  270°, smallest bending radius 50 mm).
The combustion air line can have a length of max. 1000 mm.

On no account should the combustion air be extracted
from areas occupied by persons. If the heater is located in
an enclosed installation casing, a ventilation opening of at
least 3 cm2 is required.

Where the heater is installed in the vicinity of the vehicle tank
in a common installation space, combustion air must be
drawn in from the outside of the vehicle and the exhaust gas
be discharged to the atmosphere. The lead-through openings
must be splash-proof.

Exhaust Pipe

The exhaust pipe (inside diameter 22 mm) may have a
length of up to 5m and may feature several bends (in total
720°, smallest bending radius 50 mm).

The exhaust silencer is preferably to be mounted in the vi-
cinity of the heater.
It must not be installed near the combustion air intake
opening.

Operation of the BBW 46 / DBW 46 heater is also per-
missible without silencer.

The discharge opening of the exhaust pipe 

must not point

in the direction of travel (see Fig. 14).

Rigid pipes made of unalloyed steel with a minimum wall
thickness of 1.0 mm or flexible tubes of alloyed steel
should be used as exhaust pipes.

NOTE:
Any condensation water that may have collected in the ex-
haust pipe must be drained immediately. If necessary, it is
permitted to drill a condensation water drain hole.

Electrical Connections

Control Unit/Heater Connection

The electrical connection of the heaters is to be performed
in accordance with Fig. 16.

The connection of the digital timer should be carried out in
accordance with the circuit diagram  shown in Fig. 15.

Vehicle Fan

The activation of the vehicle fan is controlled by the vehicle
fan relay, see circuit diagram shown in Fig. 16.

Connection of Telestart Receiver T60

The connection of Telestart receiver T60 is to be carried
out as shown in Fig. 16.

Fig 13:

Exhaust silencer

Direction of flow (optional)

direction of discharge approximately vertical 90° 

±

  10°

Fig 14:

Exhaust Pipe Discharge Opening

Installation Position 

BBW 46 / DBW 46

Содержание BBW 46

Страница 1: ...Water Heaters Installation Instructions BBW 46 DBW 46 Be sure to read these Operating Instructions prior to putting the heater into operation 9 1998 ...

Страница 2: ...BW 46 3 Connection to the Cooling System 5 Re Positioning of Circulating Pump 5 Fuel Circuit Connection 5 Combustion Air Supply 8 Exhaust Gas Pipe 8 Electrical Connections 8 Allocation of Telestart T60 9 Installation of Telestart Receiver 9 Circuit Diagrams 12 Initial Start Up 13 Technical Data 14 Version 15 BBW 46 DBW 46 I ...

Страница 3: ...side of the bottom of the vehicle it must be positioned near the lateral or rear edge of the driver s cab or vehicle Exhaust pipes must be routed so that the possibility of ex haust fumes entering the interior of the vehicle is remote The functioning of any parts of the vehicle essential for its operation must not be impaired The openings of the combustion air inlet and exhaust gas outlet pipes mu...

Страница 4: ...ct splashwater area of the wheels Type Plate The type plate must be located at a place where it is pro tected against damage and where it can be easily viewed once the heater has been installed or else a type plate du plicate is to be used The years not applicable must be removed from the type plate Mount The heater mount must be fitted to the vehicle body or the intermediate support by means of a...

Страница 5: ...er pump of vehicle engine 4 Vehicle engine with standard equipment 5 Water heater 6 Battery 7 Fuse holder 8 Control unit 9 Relay for vehicle fan 10 Regulating valve of vehicle heating 11 Heat exchanger of vehicle heating 12 Vehicle heating fan 13 Switch for vehicle heating fan 14 Fuse bank in vehicle 15 Digital timer 16 Fuel extractor 17 Fuel metering pump 18 Exhaust silencer 19 Circulating pump B...

Страница 6: ...hicle engine 4 Vehicle engine with standard equipment 5 Water heater 5A Non return valve 6 Battery 7 Fuse holder 8 Control unit 9 Relay for vehicle fan 10 Regulating valve for vehicle heating 11 Heat exchanger vehicle heating 12 Vehicle heating fan 13 Switch for vehicle heating fan 14 Fuse bank in vehicle 15 Digital timer 16 Fuel pick up 17 Fuel metering pump 18 Exhaust silencer 19 Circulating pum...

Страница 7: ...ng of the sys tem is ensured During heating operation inadequate bleeding may lead to a malfunction due to overheating Re Positioning of Circulating Pump The circulating pump may be integrated into the water cir cuit either by installation at the location provided on the heater or at a heater remote location It is important that the correct direction of flow through the heater be observed water ou...

Страница 8: ...For fuel extraction from flow or return lines it is imperative that the special Webasto fuel pick up see Fig 10 be used The fuel pick up is to be mounted so that any air or gas bubbles that may form are automatically discharged to ward the tank see Fig 10 Air or gas bubbles in the fuel line of the vehicle can form if there is a leak in the vehicle s carburettor or fuel pump or if the ambient tempe...

Страница 9: ...es leading from the metering pump to the heater should not be routed in a downward pitch To prevent the fuel lines from sagging freely suspended lines must be secured Mounting should be performed in such a manner that the lines are protected against flying stones and thermal influence exhaust pipe Connecting Two Pipes Using a Hose The proper connection of fuel lines using a hose is shown in Fig 11...

Страница 10: ...adius 50 mm The exhaust silencer is preferably to be mounted in the vi cinity of the heater It must not be installed near the combustion air intake opening Operation of the BBW 46 DBW 46 heater is also per missible without silencer The discharge opening of the exhaust pipe must not point in the direction of travel see Fig 14 Rigid pipes made of unalloyed steel with a minimum wall thickness of 1 0 ...

Страница 11: ...way for tuning and thus allocating a second transmitter Retrofitting the T60 Telestart Receiver NOTE The BBW 46 DBW 46 water heaters can be retrofitted with the T60 Telestart remote control The retrofit kit T60 consists of the following parts Transmitter T60 with 2 alkaline LR1 1 5V batteries Standard antenna T6 Receiver T6 Mounting hardware bag comprising 2 sheet metal screws 1 receptacle housing...

Страница 12: ...ling in the ve hicle roof and then directed to the right or left to the chassis member NOTE In the case of lack of space the antenna may be installed up to 15 cm off centre Clean windshield or rear window using grease dissolv ing cleaner e g methylated spirits Peel off protective film from antenna and glue antenna in place NOTE Do neither shorten nor sharply bend antenna cable Route antenna cable ...

Страница 13: ... rt bl bl bl br br or or rt rt rt vi vi gn gn gn rt bl rt 87a 85 86 87 30 30 E1 E2 31 31 gn ws rt sw rt ws sw br br rt sw br br br 87a 87b 87 3 4 1 5 2 6 ϑ ϑ 1 9 7 8 8 7 6 4 5 4 1 6 3 1 2 3 12 2 2 11 1 1 2 2 10 5 Y A F4 F2 F1 F3 K6 R2 24V 12V A2 A4 S3 B3 W1 W1 W1 W1 M3 S2 S1 R1 A1 M1 X1 X1 X1 M2 B1 B2 X2 E K7 Fig 16 Automatic control circuit BBW 46 DBW 46 12V digital timer and Telestart T6 legend ...

Страница 14: ...tal for presetting operating time R1 Resistor for part load operation R2 Resistor only required for 12 volt glow plugs in a 24 volt heater S1 Switch for vehicle fan S1 or S2 depending on vehicle S2 Switch for vehicle fan S1 or S2 depending on vehicle S3 Switch for circulating pump for separate activation V3 Diode in pos A2 V108 Transistor in pos A2 W1 Cable harness X1 Connector 12 pole X2 Connecto...

Страница 15: ...inguished during operation fuel is de livered for max 90 seconds In the event of overheating fuel supply is immediately stopped CAUTION No visual indication occurs in the case of overheating Fault Lock Out Due to Undervoltage In the case of an undervoltage of 9 5 0 V in the case of 12 volt heaters or 19 1 V in the case of 24 volt heaters measured at the input of the control unit occur ring over a ...

Страница 16: ...rising burner Heat output full load part load 4 6 kW 2 3 kW Fuel petrol diesel Fuel consumption full load part load 0 63 l h 0 23 l h 0 58 l h 0 29 l h Rated voltage 12 or 24 volts Operating voltage range 10 14 volts or 20 28 volts Rated power consumption without circulating pump without vehicle fan full load part load 44 W 33 W Max permissible ambient temperature Heater operation storage Control ...

Страница 17: ... DBW 46 Supplementary Heater Water heater for diesel fuel Type BBW 46 Supplementary Heater Water heater for petrol fuel The BBW 46 DBW 46 water heaters are designed for 12 volt or 24 volt operation BBW 46 DBW 46 15 ...

Страница 18: ......

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