Webasto Product N.A., Inc.
22
www.techwebasto.com
TECHNICAL DATA
DBW 2010/2020/300 COOLANT HEATERS
4.2
T
ECHNICAL
D
ATA
OF
THE
C
IRCULATING
P
UMPS
*Choice of circulating pump depends on resistance of coolant circuit.
4.3
P
ERMISSIBLE
E
XTENSION
OF
THE
C
ONNECTIONS
*Other dimensions upon request.
**Heaters built until model number DBW 2020.31 and DBW 300.10 inclusively.
CIRCULATING PUMP
U 4810
U 4846
U 4814
U 4851
MP Pump
FLOW RATE
l/h (gal/h – US)
1600 (7.0)
against 0.15
bar
1650 (7.26)
against 0.15
bar
5200 (22.9)
against 0.2 bar
6000 (26.4)
against 0.4 bar
3406 - 4542
(15 - 20)
NOMINAL VOLTAGE
12 or 24
12 or 24
12 or 24
24
12
OPERATING VOLTAGE
10-14 or
20-28
10-14 or
20-28
10-14 or
20-28
20-28
10-14
POWER CONSUMPTION
Watt
25
30
104
209
72
DIMENSIONS
L
mm (inch)
W
H
166 (6.5)
94 (3.7)
77 (3.0)
180 (7.0)
74 (2.9)
112 (4.4)
248 (9.76)
100 (3.9)
106 (4.17)
285 (11.22)
115 (4.53)
118 (4.64)
214 (8.42)
106 (4.16)
106 (4.16)
WEIGHT
kg (lb)
0.8 (1.8)
22 (48.5)
2.1 (4.6)
2.8 (6.17)
2.5 (5.5)
RECOMMENDED FOR HEATER*
DBW 2010
DBW2010
DBW 2020
DBW 300
DBW 2020
DBW 300
Scholastic
Heater™
HEATER
DBW 2010
DBW 2020
DBW 300
Scholastic
Series
FUEL LINE:
internal diameter
mm (inch)
maximum length
m (ft)
suction head
m (ft)
6* (0.25)
10 (33)
2 (6.6)
6* (0.25)
10 (33)
2 (6.6)
6* (0.25)
10 (33)
2 (6.6)
6* (0.25)
10 (33)
2 (6.6)
COMBUSTION AIR INTAKE PIPE:
internal diameter
mm (inch)
maximum length
m (ft)
maximum degree of bends total
m (ft)
80 (3.2)
5 (16.5)
270°
80 (3.2)
5 (16.5)
270°
80 (3.2)
5 (16.5)
270°
80 (3.2)
5 (16.5)
270°
EXHAUST PIPE:
internal diameter
mm (inch)
maximum length
m (ft)
maximum degree of bends total
m (ft)
38 (1.5)
5 (16.5)
270°
70 or 80**
(2.75 or 3.2**)
5 (16.5)
270°
70 or 80**
(2.75 or 3.2**)
5 (16.5)
270°
38 (1.5)
5 (16.5)
270°
HOSE CONNECTIONS - INLET/OUTLET
outside diameter
mm (inch)
18 (0.75)
38 (1.5)
38 (1.5)
25 (1.0)
TEMPERATURE DIFFERENCE BETWEEN INLET
and OUTLET
(ΔΤ)
°C (°F)
10 (18)
10 (18)
10 (18)
10 (18)