Juwent WD-16, Instruction Manual, Page: 7 / 20

7 www.juwent.com.pl
Fan operating noise level
Fan type Speed [rpm]
Noise level [dB(A)]
at the air outlet side* at the air inlet side**
at the distance
of 1m
at the distance
of 5m
at the distance
of 1m
at the distance
of 5m
Single-phase motors
WD-16
940 54 42 50 45
1420 64 52 60 55
WD-20
940 56 44 52 47
1420 66 54 62 57
WD-25
940 58 46 54 49
1420 68 56 64 59
WD-31,5
900 63 51 59 54
1420 72 60 67 62
WD-40
700 66 54 62 57
900 71 59 67 62
*Operating noise level in dB(A) -– acoustic pressure level at the air outlet side, in the free field with
taking into consideration the directional factor Q=2 and at the distance of 1 and 5m from the fan.
** Operating noise level in dB(A) – acoustic pressure level at the air inlet side with taking into
consideration the accommodation absorption ability of the compartment A=100m
2
, directional
coefficient Q=2 and from distance of 1 and 5m from the air inlet to the fan.
6. ADDITIONAL EQUIPMENT
For roof fans WD additional equipment can be delivered:
»
roof bases;
»
additional elements;
Roof fan WD mounted on PWD roof base
Fan type Roof base size
Additional elements
Silencer Self-closing damper Inlet diffuser
WD-16 PWD-16 TWD-16 SWD-16 DW-16
WD-20 PWD-20 TWD-20 SWD-20 DW-20
WD-25 PWD-25 TWD-25 SWD-25 DW-25
WD-31,5 PWD-31,5 TWD-31,5 SWD-31,5 DW-31,5
WD-40 PWD-40 TWD-40 SWD-40 DW-40