Juwent WD-16 User manual

ROOF FANS
WD
Szymański, Nowakowski General Partnership
31 Lubelska Str., 08-500 Ryki
phone [phone], fax [phone]
POLAND
I. CONTACTS
II. ORIGINAL INSTRUCTION MANUAL
III. WARRANTY TERMS AND CONDITIONS
IV. UNIT STARTUP REPORT
V. INSPECTION AND MAINTENANCE DOCUMENT
VI. SERVICE NOTIFICATION
VII. LIST OF SUBASSEMBLIES INSTALLED IN THE UNIT
Please read this instruction manual carefully before beginning any work.
RYKI 2015
ISSUE 1 EN

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I. CONTACTS
Szymański, Nowakowski General Partnership
31 Lubelska Str., 08-500 Ryki
POLAND
phone [phone],
fax [phone]
[email protected]
www.juwent.com.pl
Export department
mob.[phone]
mob.[phone]
[email protected]

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ROOF FANS
WD size 16 to 40
II. ORIGINAL INSTRUCTION MANUAL

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TABLE OF CONTENTS
1. INTENDED USE 5
2. DEVICE DESCRIPTION 5
3. DESIGNATIONS 5
5. TECHNICAL DATA 6
6. ADDITIONAL EQUIPMENT 7
7. TRANSPORT 10
8. SAFETY RECOMMENDATIONS 10
9. INSTALLATION 11
10. ELECTRICAL INSTALLATION 11
11. AUTOMATION ELEMENTS 14
12. DEVICE COMMISSIONING 15
13. REPAIR, MAINTENANCE AND WITHDRAWAL FROM USE 15
14. REMOVING MALFUNCTIONS 16
15. INFORMATION 16

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1. INTENDED USE
The roof fans are used for the removal of air from production halls, warehouses, commercial
pavilions etc. They are intended for the use in special conditions where air contains toxic or highly
caustic media.
The fans can also be used for the replacement of the fans operating earlier in the ventilation systems
or using subassemblies as spare parts.
The air being removed by the fan should not have humidity greater than 90% and dust
content above 5mg/m3. The temperature of the air being removed cannot be more than
55OC.
Use of the fans in explosion-hazard atmosphere is not admissible.
The fans are suitable for operation with impeller vertical rotation axis, and the air is being removed
in the vertical direction.
The fans are adapted for mounting on universal roof bases, damping roof bases.
2. DEVICE DESCRIPTION
The series of the roof fans contains 5 sizes.
The fans include:
»» highly-efcient centrifugal steel impeller;
»» electric motor;
»» bearing plate, body and cover made of glass-bre laminate.:
Impeller of the roof fan could be made of acidproof steel.
3. DESIGNATIONS
Roof fan WD-25 -TD900/1400 -K
Size 16, 20, 25, 31,5, 40
Motor type
three-phase two speed TD-[900/1400rpm for sizes 16; 20; 25; 31,5]
three-phase single speed T-[700 or 900rpm for size 40]
single-phase J-[900 or 1400rpm for sizes 16; 20; 25; 31,5]
single-phase J-[700 or 900rpm for size 40]
Acidproof version of fan impeller

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5. TECHNICAL DATA
Fan type Ød
[mm]
ØD1
[mm]
ØD
[mm]
H
[mm] n Weight [kg]
WD-16 140 190 500 400 4 16
WD-20 170 230 500 400 4 15
WD-25 220 280 605 470 6 17
WD-31,5 265 345 605 510 6 25
WD-40 360 430 810 660 8 38
Ambient parameters for the fan and the motor (for all sizes)
Air temperature range Max. air humidity Max. dust content Motor parameters
IP Insulation class
do + 50OC90% 5 mg/m354 F
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
Three-phase two speed motors
WD-16 940 54 42 50 45
1400 63 51 59 54
WD-20 940 56 44 52 47
1400 65 53 61 56
WD-25 940 58 46 54 49
1400 67 55 63 59
WD-31,5 960 62 50 58 53
1390 70 58 66 61
Three-phase single speed motors
WD-40 700 65 53 61 56
900 70 58 66 61
*Operating noise level in dB(A) -– acoustic pressure level at the air outlet side, in the free eld 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=100m2, directional
coefcient Q=2 and from distance of 1 and 5m from the air inlet to the fan.

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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 eld 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=100m2, directional
coefcient 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

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THE ADDITIONAL EQUIPMENT LISTING FOR THE WD ROOF FANS MOUNTED ON PWD BASES
F- roof fan PWD / PWD PLUS - roof base
c - ceiling SWD / SWD PLUS - self-closing damper
TWD / TWD PLUS - silencer DW / DW PLUS - inlet diffuser
Roof base PWD
Typ B/I Typ B/II Typ B/III
Roof base
size
A
[mm]
Ød
[mm]
Ød1
[mm] nxØ10 H [mm]
L
[mm]
L1
[mm]
H1
[mm]
PWD-16 340 160 190 4 125 590 675 75
PWD-20 390 200 230 4 125 590 675 75
PWD-25 450 250 280 6 125 590 675 75
PWD-31,5 535 315 345 6 150 790 900 100
PWD-40 640 400 430 8 150 790 900 100

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Roof fan WD mounted on PU or PUT universal roof base
Fan type Roof base size Roof base
Additional elements
Assembly
plate
Self-closing
damper
Inlet
diffuser
Flexible
connector
WD-16 PU-1 PUT-1 PWDt-1 PM-1 SWD-1 DW-1 KEO-1
WD-20 PU-2 PUT-2 PWDt-2 PM-2 SWD-2 DW-2 KEO-2
WD-25 PU-3 PUT-3 PWDt-3 PM-3 SWD-3 DW-3 KEO-3
WD-31,5 PU-4 PUT-4 PWDt-4 PM-4 SWD-4 DW-4 KEO-4
WD-40 PU-5 PUT-5 PWDt-5 PM-5 SWD-5 DW-5 KEO-5
F- roof fan PWDt - roof base
PU - roof base PUT - noise damping roof base
PM - assembly plate c - ceiling
SWD - self-closing damper KEO - exible connector
DW - inlet diffuser s - ventilation system duct
PU roof base
Fan type Base size A
[mm]
B
[mm]
C
[mm]
H
[mm] Weight [kg]
WD-16 PU-1 360 330 662 300 9
WD-20 PU-2 412 380 712 300 10,5
WD-25 PU-3 452 420 752 300 11
WD-31,5 PU-4 512 480 812 300 12,5
WD-40 PU-5 592 560 892 300 14,5

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PUT noise damping roof base
Fan type Base size A
[mm]
B
[mm]
C
[mm]
H
[mm] Weight [kg]
WD-16 PUT-1 360 330 662 700 22,5
WD-20 PUT-2 412 380 712 700 25,5
WD-25 PUT-3 452 420 752 700 27,5
WD-31,5 PUT-4 512 480 812 700 30,5
WD-40 PUT-5 592 560 892 900 49
Efciency of universal base noise damping is in the A scale ~14dB(A).
7. TRANSPORT
Fans are delivered as completely assembled, protected against pollutions and weather with
polyethylene foil or cartboard box.
The fan is delivered with the Product Book.
The PU and PUT roof bases are additional equipment and are delivered separately protected with
polyethylene foil.
The fans should be transported on one level so as to prevent any mechanical damages.
8. SAFETY RECOMMENDATIONS
Roof fans should be used in accordance with the operation manual.
Installation, connection, commissioning, inspection and repair works on the fans should
be performed by an authorised technician, and electrical works by a person holding the
required qualications.
All maintenance and repair works should be carried out with voltage off
In the case of the fan failure immediately turn the motor electrical power supply off.
The fan can only work with properly operating electrical protection devices. It must be
uninterruptedly connected to the electrical installation tted with protection terminal,
residual-current device and service switch.
Use original spare parts only.