Blowers modules and air flow regulators Ultimate cabin control – ultra silent blower operation
Blowers modules and air flow regulators Functioning principles
Inline blower modules Provide fresh air to or extract air from the cabins Special fan design provides a high air flow at low noise Low electrical power consumption Removable engine body allows easy maintenance Speed controllable motor, two speed, Class B, IP44
Minimum air grille sections To obtain acceptable noise levels at maximal blower speed levels the requirements for grille and ducts sections should be observed. The size of the transition box behind the supply air-grille is also important.
Capacity BlueCool A/C component
Duct size S-Series (mm)
Duct size A-Series (mm)
Supply air grill (cm 2 )
Recommended supply air grill (“)
Return air grill (cm 2 )
Recommended return air grill (“)
4,000 BTU / h 6,000 BTU / h
– –
100 125 125 150 150
150 190 235 250 390
8 x 4
325 490 490 550 800
12 x 5 11 x 8 11 x 8 14 x 7 14 x 10 14 x 12
10 x 4 12 x 4 10 x 5 12 x 6
8,000 – 10,000 BTU / h 12,000 – 13,000 BTU / h 16,000 – 20,000 BTU / h
100 – 125 125 – 150 125 – 150
Model
X AØBCØDE
F
G H
250 350
188 303 176 115 97 100 90 80 60 188 258 176 115 123 100 90 80 60
Model 250 & 350
Model 160
24,000 BTU / h 27,000 BTU / h 36,000 BTU / h
–
2 x 150
2 x 250
2 x 10 x 5 2 x 12 x 6 2 x 12 x 6
1,000 1,600 1,600
Model
Speed level
Speed (r.p.m.)
Electrical power consump- tion
Air flow at free discharge
Maxi- mum
Sound pressure level* (dB(A))
Power supply
Ø Duct Weight Order number
2 x 150
–
650
2 x 14 x 10 2 x 14 x 10
–
2 x 150
2 x 380
operating tempera- ture
II
2,500 2,200 2,200 1,850 2,250 1,900 2,500 1,900
20 W 180 m 3 / h, 106 cfm 12 W 140 m 3 / h, 82 cfm 24 W 240 m 3 / h, 141 cfm 18 W 180 m 3 / h, 106 cfm 30 W 360 m 3 / h, 212 cfm 22 W 280 m 3 / h, 165 cfm 50 W 580 m 3 / h, 341 cfm 44 W 430 m 3 / h, 253 cfm
40 40 40 40 40 40 60 60
24 21 31 26 33 28 33
~230 V 50 Hz ~230 V 50 Hz ~230 V 50 Hz ~230 V 50 Hz
100 mm 4 inch 100 mm 4 inch 125 mm 5 inch 150 mm 6 inch
1.4 kg 3.1 lbs 2.0 kg 4.4 lbs 2.0 kg 4.4 lbs 2.7 kg 5.9 lbs
Inline extractor blower 160 Inline extractor blower 250 Inline extractor blower 350 Inline extractor blower 500
WBCL010152A
I
Blower outlets 90° turns with flexible ducts directly from blower outlets should be avoided at all costs as they introduce severe restrictions in the air-flow. All WB blowers (except on 24,000 BTU / h models) can be rotated through 45° steps to obtain a straight-line outlet from the blower. This facility should be used whenever possible. Return grille offset It should be avoided to place a return air grille direct- ly opposite the finned coil surface of an air handler, because this will allow propagation of direct blower- motor noise through the grille. The grille should be offsetted to chicane the return air to the coil inlet. Direct noise propagation will be reduced in a significant manner.
Duct type To avoid accidental crushing, flexible air-ducts should be of high quality with sufficiently strong steel spiral reinforcement. Spiral type ducts should be extended to their maximum length for the best interior smoothness. For very long duct sections smooth bore ducts (in PVC for example) should be preferred. This offers better smoothness than flexible spiral type ducting and hence reduces internal friction. For very short lengths non- insulated ducts can be used. For greater lengths it is advisable to use insulated type ducts to avoid conden- sation on the outside of the air-ducts. Big luxury yacht In general requirements for megayachts and big luxury vessels are even more stringent than the table here above. These special requirements can be obtained from Webasto on request.
II
WBCL010157A
I
II
WBCL010158A
I
II
WBCL010229A
I
29 * Sound pressure level radiated at 3 meters at free air conditions with rigid ducts at the inlet and at the outlet.
Air flow regulators Independent regulation of desired fresh- / extract air flow Eliminates the influence of alternating back pressure, caused by e.g. blocked air filters Continuous air flow ensures high comfort inside the cabin
No electrical or pneumatic wiring
Direct insertion into the air duct, which allows an easy application
Standard
Modular
Model
Ø D of ducting
Air flow limit
Order number
15 m 3 /h, 8.8 cfm 30 m 3 /h, 17.7 cfm 45 m 3 /h, 26.5 cfm 90 m 3 /h, 53 cfm 120 m 3 /h, 70.6 cfm 160 m 3 /h, 94.2 cfm
WBCL005243 WBCL005244 WBCL005245 WBCL005247 WBCL005248 WBCL005249
80 mm, 3.1 inch 80 mm, 3.1 inch 80 mm, 3.1 inch 100 mm, 4 inch 125 mm, 5 inch 125 mm, 5 inch 80 mm, 3.1 inch 100 mm, 4 inch 125 mm, 5 inch 125 mm, 5 inch
Air flow regulator 15 Standard Air flow regulator 30 Standard Air flow regulator 45 Standard Air flow regulator 90 Standard Air flow regulator 120 Standard Air flow regulator 160 Standard Air Flow Regulator 20-60 Modular Air Flow Regulator 15-90 Modular Air Flow Regulator 15-85 Modular Air Flow Regulator 100-190 Modular
20-60 m 3 /h,11.8 - 35.3 cfm 15-90 m 3 /h, 8.8 - 53 cfm 15-85 m 3 /h, 8.8 - 50 cfm 100-190 m 3 /h, 58.9 - 111.8 cfm
2510741A 2510742A 2510743A 2510744A
148
149
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