Woods 905989 Setup guide

AEROFOIL AXIAL FLOW FANS - HT & STANDARD
Safety, installation and
maintenance instructions
Part Number 905989.

2
CONTENTS PAGE
HT SERIES SMOKE VENTING EQUIPMENT
Fans for emergency operation at high ambients for a limited period
1 GENERAL SAFETY WARNING .............................................................................................................................................................. 4
2 INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS ..................................................................................... 4
3 SITE STORAGE, SUPPLY, INSTALLATION ........................................................................................................................................ 4
4 OPERATING CONDITIONS .................................................................................................................................................................. 4
5 CONNECTION .......................................................................................................................................................................................... 5
6 CABLE ......................................................................................................................................................................................................... 5
7 CONTROL .................................................................................................................................................................................................. 5
8 MAINTENANCE - HT FANS ................................................................................................................................................................... 5
9 LUBRICATION - HT FANS ..................................................................................................................................................................... 6
10 TESTING (FANS AND CONTROLS) ..................................................................................................................................................... 8
11 LONG TERM RELIABILITY .................................................................................................................................................................... 8
STANDARD VENTILATION FANS
12 SAFETY ..................................................................................................................................................................................................... 9
13 INTRODUCTION & PURPOSE - GENERAL ..................................................................................................................................... 9
14 STORAGE & HANDLING ..................................................................................................................................................................... 9
15 MECHANICAL INSTALLATION ......................................................................................................................................................... 10
16 ELECTRICAL INSTALLATION & OPERATION .................................................................................................................................11
16.1 - CAPACITORS ................................................................................................................................................................................. 12
16.2 - OVERHEAT PROTECTION ...........................................................................................................................................................12
16.3 - BEARING TEMPERATURE, VIBRATION & LEVEL MONITORING SENSORS ......................................................................12
16.4 - ANTI-CONDENSATION HEATER ................................................................................................................................................12
16.5 - EMERGENCY-USE FANS ............................................................................................................................................................. 12
16.6 - FANS WITH HAZARDOUS AREA MOTORS ............................................................................................................................. 13
16.7 - SWITCH-ON ................................................................................................................................................................................... 13
17 MAINTENANCE ...................................................................................................................................................................................... 13
17.1 - FIXINGS .......................................................................................................................................................................................... 14
17.2 - LUBRICATION ............................................................................................................................................................................... 14
17.3 - INFREQUENT USE ....................................................................................................................................................................... 14
18 OVERHAUL / EXTENDED MAINTENANCE .................................................................................................................................... 14
19 FAULT FINDING ......................................................................................................................................................................................15
19.1 - ELECTRICAL ...................................................................................................................................................................................15
19.2 - MECHANICAL ............................................................................................................................................................................... 15
20 DISPOSAL ................................................................................................................................................................................................. 15
21 EUROPEAN MACHINERY DIRECTIVE 2006/42/EC 10 ................................................................................................................. 16
3
TABLE
1 ROUTINE MAINTENANCE PROCEDURES ..........................................................................................................................................17
FIGURES
1 TWO STAGE CONTRA-ROTATING INSTALLATION ........................................................................................................................18
2 FIXING ARRANGEMENT OF TERMINAL BLOCK (DRAWING NO: D258302 F) .........................................................................18
3 WIRING DETAIL - SINGLE PHASE FANS WITH DUCT MOUNTED TERMINAL BOX ................................................................ 19
4 WIRING DETAIL - SINGLE PHASE FANS USING TERMINAL BOX ON MOTOR ........................................................................19
5 WIRING DETAIL - SINGLE-PHASE DIRECT-DRIVE MOTOR WITH SPEED CONTROLLER ...................................................... 20
6 WIRING DETAIL - SINGLE PHASE WEG MOTORS .........................................................................................................................20
7 WIRING DETAIL - THREE PHASE FANS WITH DUCT MOUNTED TERMINAL BOX ................................................................. 21
8 WIRING DETAIL - THREE PHASE FANS USING TERMINAL BOX ON MOTOR ......................................................................... 22
9 WIRING DETAIL - THREE-PHASE MOTOR WITH ISOLATOR FITTED ......................................................................................... 22
10 WIRING DETAIL - THREE-PHASE DIRECT-DRIVE MOTOR WITH TRANSFORMER TYPE SPEED CONTROLLER ............... 23
11 WIRING DETAIL - THREE-PHASE DIRECT-DRIVE MOTOR WITH ELECTRONIC TYPE SPEED CONTROLLER .................... 23
12 WIRING DETAIL (THREE-PHASE DIRECT-DRIVE MOTOR WITH CHANGEOVER SWITCH) .................................................... 23
13 DRAWINGS OF FAN COMPONENTS WITH FIXING METHODS SHOWN .................................................................................. 24
14 DRAWING OF TORQUE SETTINGS FOR FIXINGS (DRAWING NO: D248284 K) ..................................................................... 25
THIS LEAFLET MUST BE PASSED TO THE USER
TO ENABLE THE FAN TO BE MAINTAINED IN A SAFE CONDITION.

4
1. SAFETY
Warning and safety information relevant to specic operations are contained within each section. The following warning
or advice categories are used:
DANGER! Failure to follow these instructions may result in serious injury or death to the user in addition
to serious damage to the equipment.
WARNING! Failure to follow these instructions may result in minor injury or damage to the equipment.
CAUTION! Failure to follow these instructions may result in malfunction or damage to the equipment
DANGER!
This product contains rotating parts and electrical connections which can be a danger and cause injury. It is of
paramount importance for any fan that is required to function in emergency conditions, that the installer and user
must follow all relevant instructions contained within this leaet, as well as those contained within our general
Instruction leaet, which is supplied with this product.
To ensure that fans will operate continuously during a high air temperature emergency, the electrical system must
have been designed and installed to accommodate the specic emergency conditions of temperature and duration.
A maintenance procedure must be put in place and a record of the activities that have been performed must be kept.
2. INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
These instructions apply to all axial fans, including Aerofoil and Bifurcated Fan variants. They must be read in conjunction with
advice related to our standard temperature fans (see sections 12 onwards). Note: Where fans have a foot mounted motor
tted, then the motor mounting feet must be positioned underneath the motor. Foot mounted motors must never
be suspended from their mounting feet. If in doubt, please refer to Woods Air Movement UK (Colchester Oce).
3. SITE STORAGE, SUPPLY, INSTALLATION
WARNING!
When fans are stored (prior to installation), please ensure that access by un-authorised persons is prevented,
by using guards, barriers or secure premises to ensure that fan impellers (which may be rotating) do not present
a hazard. For more specic advice please refer to sections 12 onwards.
These instructions relate to all fans rated up to and including 600°C for 2 hours which are designed to be mounted into
or on the end of ductwork that is situated outside the re zone. All fans (including our F600 Bifurcated fan range) are
also certied for use within fully immersed conditions (i.e. mounted inside the re zone). However, in this case, when
using our F600/F400 Bifurcated fan range, please request additional installation instructions which relate to motor cooling
duct connections, auxiliary cooling fan selection advice, anti-vibration spring mount and exible connector selections.
4. OPERATING CONDITIONS
Under emergency conditions, these fans are suitable for the temperature/time capability stated on their name plate or in
accompanying documentation. e.g. “HT300/1” or “F300 (60)” denotes that a fan is suitable for a single use at an emergency
condition of 300°C for 1 hour (60 minutes). Our JMF Bifurcated fan range can operate up to 600°C for 2 hours provided that
the air temperature at entry to the motor compartment does not exceed 40°C. If the emergency air temperature exceed
400°C, a means of ducting hot air away from the motor compartment to a safe location must be provided. In addition, a means
must also be provided to force ventilate the motor compartment, in order to supply cooling air which is at less than 40°C.
Motor cooling fan and associated ductwork shall be provided by others.
Unless otherwise stated fans are suitable for continuous operation, prior to the emergency, in ambient temperatures of -40
to +40°C. They are only suitable for start-up between -20 to +40°C. On the fan nameplate, the maximum temperature may be
shown as +40°C but when installed for emergency use, the temperature/time capability will be as shown on an additional label
adjacent to the main nameplate.
HT SERIES SMOKE VENTING EQUIPMENT
Fans for emergency operation at high ambients for a limited period
5. CONNECTION
The wiring to the fan must be in accordance with the connection diagram in the terminal box.
Fans are designed for a 3 phase electrical supply. On commissioning, the rotation of the impeller should always be checked
to ensure that it is running in the correct direction.
6. CABLE
Suitable re-resistant cable must be used between the main supply, starter controls and the fan. The mains supply must be
from a guaranteed or separately maintained source, to enable the fan to continue running under emergency conditions. Duct-
mounted terminal boxes for all HT fan specications are designed to accommodate MICC supply cables.
7. CONTROL
High Temperature rated fans can either be run Direct-on-Line during their emergency [high temperature] operation, or via
an approved inverter (VSD), which has been selected in accordance with our EN12101-3:2015 certication. Where required,
a voltage waveform lter should also be tted between the VSD and the fan drive motor. If in doubt, please seek advice from
Woods Air Movement.
Our HT fans can be soft-started, and speed controlled when operating in a normal ventilation mode. Use of non-approved
drives is permitted as long as the drive is by-passed from the control circuit once the fan is running at full speed. Variable
Speed Drives (VSDs) must not be located in the same re compartment as the extract fans. They should instead be located
within a suitable re protected compartment, remote from the fan. VSDs must be connected to the fans using appropriate HT
cable for the application and where required with screened cables to minimise the impact of EMC aects. VSDs should also be
tted with appropriately selected voltage waveform, RFI or Harmonic lters, depending on the application.
Over-heat protection, vibration sensors, bearing sensors and inverter motor over-heat protection circuits must be disabled
during emergency mode if provided.
8. MAINTENANCE - HT FANS
For normal operation and planned preventative maintenance please refer to sections 17 and 18.
AT 3 MONTHLY INTERVALS WHEN FANS ARE NOT NORMALLY RUN
If the fan is intended for emergency use only, the resistance of its windings
to earth should be measured (at 500v dc). If the resistance value is found
to be less than 10 MΩ (Megaohm), then the motor should be dried out and
re-checked. Run the motor for at least 15 minutes to prevent hardening
of the grease and to minimise bearing corrosion issues.
AT 6 MONTHLY INTERVALS
For bifurcated fans only; remove the impeller and check the condition
of the shaft packing seal located behind the shaft seal retaining plate.
Replace the packing seal (Part No. 407212) if necessary.
5
Part No. 407212

9. LUBRICATION - HT FANS
CAUTION!
It is necessary to record the number of hours the motor has operated in order to determine when bearing
relubrication is required. If the motor is not running continuously, the date of installation must be recorded, since
relubrication is recommended every three to six months, even if the motor has not been run during this time.
WARNING!
Beware of all rotating parts!
Grease can cause skin and eye irritation when re-greasing. Follow all safety precautions specied by the grease
manufacturer.
SHIELDED/SEALED BEARINGS
Small motors (WEG 80-132 frames or Brook 71-180 frames) which are tted with ‘sealed for life’ ZZ/2Z bearings (that are pre-
greased), must be replaced after 20,000 running hours (if fans are continuously running). If the fan is a “dual mode” fan or if it is a
dedicated re safety (smoke extract) fan, checks should take place every 6 months to determine if the fan (motor) bearings have
become noisy or appear to have become unbalanced. Check motor nameplate for determining the bearing type used.
MOTORS FITTED WITH GREASE RE-LUBRICATION POINTS
Bearing grease re-lubrication points are usually tted to larger frame motors than those mentioned above. Regular maintenance
and adherence to re-greasing procedures will prolong bearing life. Failure to do this may shorten bearing life considerably.
Maintenance includes:
a) Attention to the overall bearing condition;
b) Cleaning and lubrication;
c) Detailed inspection of the bearings.
Although bearing problems may often be detected by listening for unusual bearing noise, more sophisticated equipment should
be used to obtain a quantied bearing condition analysis. Bearings must be lubricated to avoid metallic and direct contact of the
moving parts, and to provide protection against corrosion and wear. Lubricant properties deteriorate over time due to mechanical
operation, furthermore, all lubricants are subject to contamination under working conditions. For this reason, lubricants must be
renewed or replenished on a regular basis, in accordance with motor manufacturers recommendations.
NOTE!
Bearings with grease re-lubrication points must be replaced after 40,000 running hours or 5 years,
whichever occurs rst.
LUBRICATION INTERVALS
It should be noted that some grease types may cause higher bearing noise levels particularly at low temperatures,
or when intermittent operation does not allow the running temperature to exceed +20 °C.
Please contact Woods Air Movement if the normal fan and motor operating temperature is below -5 °C.
Grease type, lubrication intervals, grease quantity used, and the bearing type and its associated component clearances, are all
indicated on the motor nameplate. Lubrication intervals are dependent on motor size, running speed, working conditions, grease
type and the ambient operating temperature. If required, please contact Woods Air Movement for further advice related to
bearing lubrication or replacement.
NOTE!
If the supplied fan and motor assembly was intended and designed) for horizontal operation but is then
operated in a vertical position (i.e. with the motor shaft in the vertically up or vertically down position),
then bearing lubrication intervals must be reduced by half (i.e. must be more frequent).
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CORRECT GREASE QUANTITY
Correct lubrication is very important to ensure that bearings operate reliably i.e. grease must be applied correctly and
in a sucient amount. Lack of grease or excessive greasing may cause bearing damage.
CAUTION!
We recommend that one grease shot is measured in order to determine its weight, so that the number
of grease shots required, can be matched to the quantity (i.e. weight) as stated on the motor nameplate.
Excessive greasing causes overheating by increasing the resistance to free movement of its rotating parts and, in particular, by
the lubricant being compacted so that it loses its lubricating characteristic. An excessive application of grease may also cause it
to leak into the motor, contaminating the winding. Lack of grease causes overheating due to increased friction levels between
the rolling elements, outer ring and inner race, which will ultimately result in premature bearing failure.
GREASE COMPATIBILITY
Incompatibility between dierent grease types can cause problems.
ATTENTION
Never mix greases of dierent bases.
Example: lithium-based grease must never be mixed with sodium or calcium-based grease.
ATTENTION
To avoid any eventual grease incompatibility, always re-grease bearings with the grease type indicated
on the motor nameplate.
As a general rule, greases with the same specication are compatible, however this is dependent on the formula.
Before mixing grease types, therefore, please consult the grease supplier.
DRIVE END AND NON-DRIVE END BEARING RELUBRICATION STEPS
1. Before lubricating the bearing, clean the area around the grease re-lubrication points with clean cotton cloth;
2. With the motor running, add the amount of grease indicated on the bearing nameplate;
3. Leave the motor running for sucient time to spread the grease on the bearing;
4. Check bearing temperature to make sure there is no signicant variation.
NOTE!
On rst start of the equipment or after a bearing re-lubrication, there may be a slight temperature rise for
the initial 10-20 hours of running.
If the motor cannot be lubricated while it is running under normal conditions, lubrication can be carried out as detailed below:
1. Inject about half amount of required grease, and run the motor at full speed for 5 minutes;
2. Switch o the motor and inject the remaining grease;
3. Start the motor again to ensure that grease is correctly distributed within the bearing.
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CAUTION!
The bearing life is estimated by calculations according to ISO 281:2007-02 to give a L10 life. Beyond each
periodical maintenance, our recommended bearing condition check frequency is at each lubrication. Depending
on the results, bearings may need to be replaced.
CAUTION!
Lubrication intervals are based on a bearing operating temperature of 75°C (frames 63 to 200) and 85°C (frames
225 to 500). Some designs may vary. An increase of the ambient temperature will raise the bearing temperature
correspondingly. For each 15°C of temperature rise, the relubrication period must be reduced by half (i.e. must
be more frequent).
ATTENTION!
Where motors are mounted inside fan ducts, and where grease re-lubrication points have been mounted on the
exterior of the duct, there will be an additional nameplate axed to the product which will state the grease type,
quantity and re-lubrication interval.
MOTORS WITHOUT LUBRICATORS
Where motors are not tted with bearings that can be re-lubricated (WEG 80-132 frames or Brook 71-180 frames), then the
following steps must be taken::
Motors operating in ambient temperatures up to 50°C;
After 20,000 hours running, or 3 years, whichever is the shorter, (10,000 hours where motor speed exceeds 1800 rpm),
the motor should be dismantled, shaft seals and bearings replaced and the bearings re-lubricated.
Motors mounted in airstream, operating at temperatures of 200°C (i.e. motors designed for smoke extraction use);
To re-lubricate motors which are mounted in an airstream with a temperature above 199°C (where the motor is designed
for used within a Smoke Extraction fan), the special grease used has a very low ll requirement. These fans, therefore, do not
have re-lubrication facilities. Any old grease must be washed out with a designated solvent. The bearings must be relled with
grease leaving the housing empty. If a bearing is removed from the rotor, it must be discarded and a new one tted, using the
approved grease.
10. TESTING (FANS AND CONTROLS)
It is recommended that re safety systems are tested every 6 months. However, ideally, these tests should be more frequent
(once per month or once every 3 months). This test must review all elements of the system [fans, controls, dampers etc.]
to conrm correct operation.
Note: Fans must only be run for short periods as no thermal overloads are in circuit for emergency condition.
11. LONG TERM RELIABILITY
Maintenance Engineers should consider performing a major ret after fans have been operating for 50,000 hours or if they
have been installed for a period of 10 years. If the condition of the motor winding has been seen to deteriorate during regular
maintenance (as detailed within section 8), then the motor must be replaced. Motors used within Fire Safety fans must NOT be
re-wound. It could potentially be extremely dangerous to refurbish such as motor using a standard motor rewind facility, as these
motors are specially developed for the smoke control application. The new motor must be manufactured in accordance with
current requirements as stated within the EN12101-3 specication.
Guidance on operating times before a re-t is required can be obtained from Woods Air Movement Limited on receipt of full
operational information, duty cycle, “HT” category, and other nameplate data. To maintain CE / UKCA marking of High Temperature
Fans; motor replacement must be conducted by Woods Air Movement Limited or our nominated service representatives.
8 9
STANDARD VENTILATION FANS
12. SAFETY
WARNING! Only approved, qualied personnel familiar with the assessment of hazards and risks associated
with fans, and with the use of tools and test equipment required to service such fans, should
install, operate and maintain the product.
CAUTION! If the installer or user is unable to understand the information in this manual, or has any doubt
that a safe and reliable installation, operation and maintenance of the equipment can be assured,
Woods Air Movement or their representative must be contacted for advice.
WARNING! When fans are retained in storage, access by unauthorised persons must be prevented with the
use of guards, barriers or secure premises such that fan impellers which may be rotating do not
present a hazard.
13. INTRODUCTION & PURPOSE - GENERAL
The Aerofoil Axial Flow Fan is a highly ecient air movement product, designed to operate between a temperature range of
-40° to +50°C (-20°C on starting). When operating at low temperatures, ice formation on the fan assembly must be prevented.
Some fans may also have a specication which requires them to operate in a high temperature emergency condition (i.e.
Smoke Extract). This capability will be identied on a special label axed to the fan casing (see also Paragraph 16.5).
Please refer sections 1 to 11 of this document for specic guidance related to our HT Series Smoke venting equipment.
Each fan assembly has been manufactured to specically to full the requirement of the installation for which it was designed.
No deviation from the original requirement must be implemented without referring to Woods Air Movement head oce
(located in Colchester in the UK). Any queries regarding safety or operating problems must be referred to your local Woods Air
Movement Limited oce,, sales centre or representative, together with full fan/motor nameplate details. Should a fan failure
occur whilst the product is under warranty, the Woods Air Movement service centre in Colchester must be contacted before
any repair work is undertaken.
If speed control is to be provided by means of a frequency inverter, then please seek drive selection and compatibility
advice from Woods Air Movement.
14. STORAGE & HANDLING
WARNING!
While storing fan assemblies, please ensure that access by unauthorised personnel is prevented by using
guards, barriers or secure premises, so that fan impellers, which may be rotating (wind milling), do not present
a hazard.
If the fan assembly is to be stored; check immediately on receipt that it is as ordered and that it has not been damaged
in transit. Where the fan is delivered in a crate (or similar) the crate must be considered as a protective device only.
The crate must not have other equipment stacked on top of it and it must not be stacked on top of other equipment.
The crate structure must not be used as a lifting aid, unless otherwise indicated.
Where a fan is packed inside a crate, a fork-lift truck or similar must be used to transport the product. The fan must be stored
in a safe, clean, dry, vibration free location. If such storage conditions are not available, the motor anti-condensation heater
(if tted) should be connected to an appropriate electrical power supply to prevent motor condensation forming, while the
fan should be stored in an appropriate enclosure. Each month, the fan impeller should be given a manual rapid spin to help
prevent grease from hardening and possible bearing brinelling; the impeller must not be in the same angular position after
rotation.
When dismantling the crate to gain access to the fan assembly care must be taken to avoid injury from sharp edges, nails,
staples, splinters, etc. If the fan is to be stored for 12 months or more, then we recommend that the fan is inspected by a
member of the Woods Air Movement service team before commissioning is undertaken.

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15. MECHANICAL INSTALLATION
DANGER!
It is recommended that suitable safety guards form part of the Installation. Such devices, and advice on safety
devices, are available from Woods Air Movement.
WARNING!
Where the fan is delivered in a crate (or similar), the crate must be considered as a protective device only, and
must not be used as a lifting aid unless otherwise indicated.
WARNING!
All lifting aids used during installation must be adequately certied to carry the weight of the equipment being
lifted.
WARNING!
Always wear appropriate protective clothing (including hard hats, eye protectors and ear defenders)
when working in the vicinity of the fan assembly.
WARNING!
During lifting of the fan all personnel must be clear of the area below the suspended fan.
NOTE!
Before fan assembly installation, check that no damage has occurred in transit, that there is no fan casing
deformation, that the impeller rotates freely and that the fan and motor nameplate data complies with its use
requirement. If the fan assembly has been stored (for an extended period) the motor winding resistance to earth
must be measured (at 500V dc). Where any reading is less than 10 MΩ (Megaohm), the motor must be dried out
and re-checked before it is switched on.
Fan assemblies can sometimes be very heavy (depending on fan and motor size and which ancillary equipment has been tted,
such as silencers, guards and bellmouths etc.), which can make them unwieldy during handling. They must therefore be lifted
slowly to prevent damage or distortion. Proper precautions must be taken, and certied lifting aids used, to ensure that the fan
is well supported and stable before lifting into position.
Flange holes or mounting feet holes can be used for lifting but more than one hole must be used to spread the load.
If special lifting points are provided, they must be used. The fan must be installed such that it is correctly positioned in
accordance with the required airow direction. An airow indication arrow is shown on the fan nameplate. For two-stage,
contra-rotating fans see Figure 1 (on page 18).
Sharp bends in the ductwork close to the fan must be avoided. Adequate room must be allowed round the fan for inspection
and maintenance. Component parts of the fan assembly, including (if tted) anti-vibration mounts, silencers, bellmouths,
air operated dampers, exible connectors (and their clips), purlin boxes, weather proong, platforms, supports, chains and
harnesses, etc. must be fully aligned before being bolted together so that no distortion or stress is placed on the equipment.
Air operated dampers must be installed downstream of the fan (on the fan discharge) to ensure that fan performance is
not adversely impacted.
Appropriate xings, with the correct torque applied, must be used to secure the fan into position. If in doubt, please contact
Woods Air Movement for advice related to torque settings for each xing. The fan mounting and support structure must be
strong and rigid enough to take the weight and operating forces of the fan and any other weight applied during installation.
Vibration isolators must be appropriate for the weight and thrust of the fan, in order to minimise the transmission of fan
vibration to surrounding structures. When vibration isolators are used, exible connectors and exible electrical conduit must
also be used. Vibration isolators and exible connectors must not be used to compensate for misaligned component xing
points. If any component parts do not easily t together the root cause must be investigated and rectied.
A drain hole is included within in each motor end cover and electrical connection terminal box. The motor drain hole must
be located at the lowest point of the motor, when the fan is installed. Plugs which close drain holes should either be removed
entirely (if condensation is liable to occur due to large variations in operating temperature) or removed periodically to allow any
general build-up of condensation to drain away. The frequency of plug removal will depend on by environmental conditions
and should be recorded within maintenance records. Where bifurcated fans have their airow axis horizontal, then the ‘motor
tunnel opening’ must be facing downwards between the 3 o’clock and 9 o’clock positions, in order to minimise the risk of water
ingress.
After installation all packing materials must be disposed of in accordance with Paragraph 20 (page 15).
11
16. ELECTRICAL INSTALLATION & OPERATION
DANGER!
No work must be attempted before completely isolating the fan assembly, its anti-condensation heater
(if tted), and its controls from all electrical supplies. Ensure that rotating parts come to rest.
WARNING!
Before entering the area where the fan is installed, please ensure that all fumes, dust, toxic emissions,
heat etc. have dispersed from the local environment, and that the fan blades are not likely to rotate.
DANGER!
The fan assembly contains rotating parts and electrical connections which can be a danger and cause injury.
If there is any doubt that a safe and reliable fan installation can be assured; Woods Air Movement or their
representative must be contacted for advice.
WARNING!
If the fan assembly is designed for high-temperature emergency-use; it is imperative that the wiring used is rated
and designed for the appropriate high temperature category, and that all switches and controls are overridden
during the emergency operation. Only Frequency Converters which have been fully tested and certied in
accordance with EN12101-3:2015 may be used.
CAUTION!
If the fan stops operating due to an overheat situation, the overheat protection thermostat may reset as
the temperature cools and then automatically restart the fan if power is still applied.
WARNING!
Always wear appropriate protective clothing (including hard hats, eye protectors and ear defenders etc.) when
working in the vicinity of the fan assembly.
Each fan assembly has either a terminal box mounted on the motor or on the fan duct. The fan assembly electrical supply must
be connected to the terminal box by a qualied and competent electrician. It is good practice to t a clearly marked isolator
switch close to the fan. In addition, we recommend the use of a second clearly marked and accessible switch remote from the
fan. Using two switches provides an enhanced level of safety when isolating the fan during maintenance.
A suitable earth must also be connected. Sucient cable length must be provided to allow for movement of the fan on
its mountings.
A connection diagram providing wiring details is supplied with all fan assemblies (typically inside the terminal box lid). Figures
3 to 12 (pages 19 to 23) show wiring terminal details for smaller fans. Figure 2 (page 18) shows the correct assembly sequence
of terminal box parts, and recommended torque values to be applied. It is essential that no lock washers or nuts are used
between the motor lead eyelet, connecting link or customers supply lead eyelet (when tted).
Electrical control circuit Fuses must be correctly selected to carry the rated starting current as indicated on the motor or
fan nameplate but should only be regarded as oering protection against wiring short circuits or earth faults. Fuses are not
designed to provide overload protection. To provide full protection for the motor, a starter panel with overload protection must
be used. We also recommend that an electrical isolator switch is incorporated into the connection circuit and that it is of the
lockable type, which will allow the operator or maintenance engineer to isolate the fan from the electrical supply before working
on the assembly.
If a speed controller, or other control equipment, forms part of the system it must be able to control the fan within safe limits.
When running fans at low speed, care must be taken to ensure that any shutters (dampers), which may be mounted in the
airow, will open and operate correctly. Control equipment should be securely located, and should not be, or cause,
a radiation hazard.
For single phase electrical supplies, three-wire speed control is preferable to the two-wire control method. Two-wire control can
be used for motors up to a full load current of 3 amps, but above 3 amps three-wire control is recommended to avoid increased
temperature rises within motor windings. Care must be taken to ensure that the fan motor is suitable for speed control. Please
contact Woods Air Movement for advice on all forms of speed controller and other control equipment supplied by the Company.
Speed controllers must not be used without prior agreement with Woods Air Movement.
Fans with a duct-mounted terminal box must have their electrical supply cables routed through an entry point in the
side of the box. Unused entry points must be sealed with weatherproof plugs or grommets. Fans with a motor-mounted
terminal box must also have its electrical supply routed through an entry point in the side of the terminal box.
Cables must be routed via a gland assembly. The gland assembly should be tightened suciently to hold the cable
and provide a weatherproof seal, but it must not be over-tightened.

12
16.1 CAPACITORS (SINGLE PHASE MOTORS ONLY)
Capacitors which are physically small in size, are normally mounted on the motor during manufacture. Larger capacitors are
supplied separately and must be tted remotely from the motor. Capacitors associated with fans and motors designed for use
within hazardous areas must be located outside the hazardous area.
WARNING!
Be aware that electrical components can operate at high temperatures. Keep Flammable Materials away from
these components and their connections. Whilst it is extremely rare, the possibility of component malfunction
must be taken into consideration when installing and operating the product.
16.2 OVERHEAT PROTECTION
Motor overheat protection (if tted) can be enabled on all single-phase and three-phase motors and can be achieved by using
either thermostats or thermistors. Protection device connected options are listed below:
- Where single-phase or three-phase motors have a full load current of up to and including 6.3 Amps: thermostats can be
wired in series. Where the unexpected re-closure of self-resetting of a thermal cut-out can cause a hazard, or is prohibited by
regulation, it must be connected into a control circuit that will not allow the fan to restart until the circuit has been manually
reset.
- Where single-phase or three-phase motors have a full load current above 6.3 Amps: thermostats must be wired to separate
terminals (K – K) within the terminal box; they operate by opening and closing, depending on the temperature and must be
wired to directly control the motor start contactor. Where thermistors are used these must be wired to separate terminals
(S –S) within the terminal box; they operate by changing their resistive value with temperature and must be wired to control
the motor start contactor via a suitable relay.
NOTE!
When the fan is intended to be used for emergency high temperature operation, overheat protection must be by
passed in the event of an emergency (see Section 16.5).
NOTE!
When a motor cools down, an over-heat protection thermostat will reset. However, to maintain safe operation,
the motor must not be allowed to start until the motor start contactor is manually reset.
16.3 BEARING TEMPERATURE AND VIBRATION MONITORING SENSORS
If monitoring sensors are tted into the fan control system, then they must be wired to automatically switch the fan o if a fault
occurs, or to provide a fault indication. If the fan is automatically switched o by a monitoring sensor the control system (via
a PLC for example), must ensure that the fan is fully isolated from the electrical supply, so that it will not automatically reset
and re-start. If the fan is designed for emergency use, then the control system must ensure that all monitoring devices are
overridden so that the fan is immediately switched on during an emergency situation (see Section 16.5).
16.4 ANTI-CONDENSATION HEATER
If monitoring sensors are tted into the fan control system, then they must be wired to automatically switch the fan o if a fault
occurs, or to provide a fault indication. If the fan is automatically switched o by a monitoring sensor the control system must
ensure that the fan is fully isolated from the electrical supply, so that it will not automatically reset and re-start. If the fan is
designed for emergency use, then the control system must ensure that all monitoring devices are overridden so that the fan is
immediately switched on during an emergency situation (see Section 5.5).
16.5 EMERGENCY-USE FANS
Where the fan assembly is designed for emergency-use (smoke-extraction) at high temperature, the temperature / time
capability of the product will be shown on a special label adjacent to the main nameplate. We recommend that an automatic
control system, or a clearly marked remotely sited emergency-use switch, is tted to override all other switches and controls,
so that the fan is immediately switched on when an emergency situation occurs. The only exception is where a matched and
certied Frequency Converter drive is tted, as this can remain “in-circuit” if appropriately selected. If you require further
information or advice, please contact Woods Air Movement directly. Also refer to sections 1 to 11 of this document for more
detailed guidance related to our HT Series fans..
Appropriately rated high temperature cable must be used to supply power to the fan, while the electrical supply must be from a
guaranteed or separately maintained source to enable that the fan continues to run during the emergency condition. After such an
emergency the fan must be removed, refurbished or safely disposed of (see Paragraph 20), and replaced as necessary.
13
16.6 FANS WITH ATEX OR HAZARDOUS AREA MOTORS
Fans with ATEX/hazardous area motors tted are designed for use in locations where fumes, dust or ammable/explosive gases
may be present. Installation should be carried out by qualied and competent personnel. Special care must be exercised when
connecting such units to an electrical supply to ensure that a secure and safe ATEX/hazardous area connection is achieved.
Great care must be taken to ensure that cable gland or conduit thread standards match their corresponding connector thread
standard, so that the entire installation achieves the required level of protection. Long cased, fully ducted fans tted with
ENV89 motors are not tted with an external duct-mounted terminal box. The electrical supply cable must be routed through a
conduit entry in the fan duct and connected directly into the motor terminal box before the fan is fully installed (i.e. before the
inlet and outlet ducts are tted).
Any electrical control gear (including a capacitor in the case of single-phase motors) must be located outside the hazardous
area, if these items are not certied for use in that zone. The motor must not be allowed to become coated with dirt/dust, etc.
as this reduces motor cooling capability and will consequently raise the temperature of the motor carcase, which could then
create an additional risk.
16.7 SWITCH ON
Before switching on, conrm that the electrical supply is fully compliant with the requirement of the motor as detailed on the
motor or fan nameplate, that the fan is correctly installed, all component parts and xings are secure, safety guards are in place
and no loose items or associated equipment are present in the vicinity.
Immediately after switch-on check that the rotation direction is correct. For three phase motors, if the rotation direction is
incorrect, then this can be rectied by interchanging any two incoming phase connections of the electrical supply at the motor
terminal block. For single-phase motors, the motor winding leads should be interchanged at the motor terminal block. In the
case of BT and CT motors, these are identied by black and red coloured wires. In the case of other motors these wires are
labelled “U1” and “U2”.
Check the assembly for smooth, low vibration running, and check that the current consumption is within the full load current
specied on the nameplate. The fan motor must not be repeatedly or rapidly switched on and o as this could cause
overheating of the motor or its associated wiring connections.
17. MAINTENANCE
DANGER!
No maintenance work must be attempted before switching o and completely isolating the fan assembly, its
anti-condensation heater (If tted), and its controls, from all electrical supplies and allowing the rotating parts of
the fan to come to rest.
WARNING!
Before entering the area ensure that all fumes, dust, toxic emission, heat etc. have dispersed from the local
environment, and the fan blades are not likely to freely rotate.
WARNING!
All lifting aids used during maintenance, and all lifting points utilised, must be adequately certied to carry the
weight of the equipment being lifted. (See paragraph 15).
WARNING!
Always wear appropriate protective clothing (including hard hats, eye protectors and ear defenders etc.) when
working in the vicinity of the fan assembly.
Fan assembly maintenance must be carried out by appropriately qualied and competent personnel using the correct tools
and equipment. A regular maintenance schedule should be established, and a record kept. Recommended maintenance
intervals are given within Table 1 (page 17).
Where the environment is particularly dirty, it may be necessary to reduce maintenance / service intervals. Internal and external
fan surfaces may be cleaned with low pressure clean water and non-abrasive additives. Water or liquid cleaning agents must
not be directed at motor drain holes, as this could cause liquid ingress.
After maintenance has been conducted and before the fan is re-started, always ensure that there are no loose items of
equipment present in the vicinity of the fan, that all safety guards, chains or steel ropes, etc., are properly secured into their
original location, and that any temporary device used to stop the fan blades from rotating has been removed.

17.1 FIXINGS
It is essential to ensure that all fan assembly xings are secure. When examining and checking the security of xings during
routine maintenance (see Table 1 Items 10 and 11), any xings which have locking devices tted or are painted over, need not be
disturbed if it can be seen that they are secure. Any locking devices that are disturbed during maintenance must be discarded and
replaced with new identical devices. Thread forming screws must have locking compound applied when being reused. Any xings
which have no locking devices tted and are not painted over, must be checked at 95% of their original torque setting to ensure
that no unnecessary disturbance of the xing has occurred. See Figure 13 (Page 24) for torque setting details. If in doubt, please
contact Woods Air Movement for advice in relation to specic xing torque values.
17.2 LUBRICATION
In addition to routine maintenance, motor bearings will, in the longer term, require attention. If motor bearings are greased
through extended lubricators, then the required quantity of grease must periodically be applied in accordance with information
stated on the fan or motor nameplate and/or as per any instructions provided. A fully compatible grease type must be used,
and it is essential that all traces of water and dirt are removed from around the grease points and that a clean grease gun is
used. It is only necessary to apply a small amount of pressure when injecting the specied quantity
of grease into the re-gearing point. If grease injection requires the maintenance engineer to apply a high pressure, then
the cause should be investigated. Grease points are generally located close to the fan duct-mounted terminal box.
Where motors require re-lubrication, a separate instruction is normally issued with each fan/motor conguration.
This gives details of lubrication intervals and well as the type and quantity of grease to be used. If further details are required,
please contact Woods Air Movement directly.
17.3 INFREQUENT USE
If the fan assembly is used less frequently than once a month, or is designed for emergency-use only, the following additional
maintenance procedures must be carried out, and a record kept:
- Resistance of motor windings to earth, must be measured (at 500V dc) each month. If these readings are less than 10 MΩ
(Megaohm), the motor must be dried out in a warm airow (typically at 40°C) and re-checked before running the motor.
- The fan should be operated between 15 and 30 minutes each month ensure that correct lubricant conditions are
maintained within the bearings (i.e. to prevent grease hardening).
- An ‘emergency-use’ system should be run continuously for a minimum of fteen minutes each month. The test should
not only conrm that the fan operates correctly but must also ensure that the emergency use control system overrides all
other control devices (except where matched Frequency converters are used)
(see Paragraphs 1 to 11 and 16.5 for more information).
- If anti-condensation heaters are tted, check each month that they automatically switch on
(i.e. they are drawing current) when the motor is switched o.
18. OVERHAUL / EXTENDED MAINTENANCE
Advice on motor overhaul procedures, bearing /seal replacement, motor replacement, motor rewinding, spare parts, condition
monitoring, vibration analysis, refurbishment, etc. is available from Woods Air Movement service centre in Colchester.
For emergency use fans we recommend that motor shaft seals and bearings must be replaced after 20,000 hours or
5 years of normal operation whichever occurs rst.
After 40,000 hours of running, we strongly recommend that a qualied and competent electrician performs a motor “health
check” (as described within section 8, Fault nding) to determine the motor insulation condition.
If motor insulation readings are less than 10 MΩ (Megaohm), available when the fan is used during an emergency operation,
to ensure that adequate insulation life is available should the fan be required for emergency operation, then we recommend
that the motor must be replaced with a new motor which has been manufactured in accordance with current requirements as
stated within the EN12101-3 specication.
NOTE!
When dealing with High Temperature Smoke Extract fans, only an authorised company may undertake
the maintenance. Failure to do so may invalidate any warranty and CE / UKCA Certication. The motor
manufacturer’s specication sheets are available through Woods Air Movement. After overhaul/extended
maintenance the fan assembly must be correctly installed back into its original position in accordance
Paragraphs 12, 13, 14 and 15 of this document.
After conducting overhaul /extended maintenance the fan assembly must be correctly installed back into its original position
in accordance Paragraphs 12, 13, 14 and 15 of this document. For advice on “switching on” after maintenance, please refer to
paragraph 16.7.
14
19. FAULT FINDING
Please refer to the safety warnings (“attention” items) stated within paragraph 17.
NOTE!
Routine maintenance procedures detailed in Paragraph 17, and Table 1 (page 17), of this document are
designed to help keep your fan operational and fault free.
19.1 ELECTRICAL
Check that electrical connections to the fan are secure and are in accordance with the wiring connection diagram.
Check that the voltage applied at each fan terminal is as specied on the fan nameplate and is balanced. Measure the current
on each phase (one phase in the case of single-phase motors) of the motor in turn and check that the current consumption is
within the full load current specied on the motor or fan nameplate.
Measure each motor winding to earth, and between each winding, using a 500V dc insulation tester. If the reading is less
than 10 MΩ (Megaohm) the reason is likely to be dampness within the motor. To dry out the motor place it in a warm dry
airstream (typically at 40°C) and regularly monitor the motor until the insulation reading is restored to 10 MΩ (Megaohm) or
greater. If the reading remains at less than ten, then this could indicate that a break-down in motor winding insulation has
occurred, which may require the motor to be either rewound/overhauled (standard temperature machines) or replaced with a
new motor which been manufactured in accordance with current requirements as stated within the EN12101-3 specication.
(smoke extraction machines).
If a smell of burnt motor insulation is detected, then please seek immediate advice from Woods Air Movement UK (Colchester
Oce).
19.2 MECHANICAL
Check that there are no obstructions to the motor shaft or impeller blades, that the blades are clean, and that there are
no loose components, items or debris in the vicinity.
Rotate the motor shaft by hand. Investigate any grinding noises, internal chang, rubbing or stiness. If any of these defects
are observed, this may indicate that bearings require lubrication or replacement.
Ensure that all xings are secure and tightened to the correct torque values.
20. DISPOSAL
Metal components of the fan/motor should be segregated and separately recycled. The following items of material should be
safely disposed of in accordance with local health and safety regulations:
- electrical lead coverings,
- motor winding insulation materials,
- bearing lubricant,
- motor/fan terminal block,
- paintwork,
- plastic parts,
- packing materials,
- silencer inll (Note that a face mask and gloves must be worn when handling the inll. If the inll is particularly dry or is
damaged it should be damped down before disposal),
- Thermal motor packing seal (bifurcated fans).
15

21. EUROPEAN MACHINERY DIRECTIVE 2006/42/EC
1.7.4.2 CONTENTS OF THE INSTRUCTIONS CLAUSE C)
Please see a typical example of an EC declaration of conformity certicate (below), which shows particulars of the machinery
oered.
CLAUSES G) AND H)
Fans must not be operated above their maximum indicated speed or run where the fan is operating in a stalled condition.
Fans must also not be run in reverse unless specic advice is sought from Woods Air Movement.
CLAUSES I) AND J)
Fans must be isolated from support structures by means of anti-vibration mounts and from adjacent ductwork by exible
connections.
CLAUSE K)
Care must be taken when installing fans to ensure that the product orientation is correct in relation to direction arrows which
indicate direction of air movement and impeller rotation direction. Where two-stage fans are shipped as two separate fan units,
please refer to the appropriate two-stage assembly drawing, which is available on request.
Also see gure 1 within this document.
16
Herewith we declare that the air movement equipment designated below, on the basis of its design and construction, in the
form brought on to the market by us, is in accordance with the relevant health and safety requirements of the EC Council
directives on Machinery and Electromagnetic Compatibility. If alterations are made to the machinery without prior
consultations with us, this declaration becomes invalid. We further declare that the equipment identified below may be
intended to be assembled with other equipment/machines to constitute machinery, which shall not be put into service until
the assembled machinery has been declared in conformity with the provisions of these EC Council directives.
Notes:
(1)
Fläkt Woods fans are driven by AC induction motors which are inherently compliant if supplied with a truly sinusoidal AC supply.
Where the fan motor is supplied via an inverter or other electronic control, verification of its compatibility together with cabling should be
sought from the control supplier.
(2)
For a complete list of applied standards and technical specifications see Fläkt Woods documentation.
(3)
Where no relevant harmonised standards exist.
Electromagnetic Compatibility Directive (
2014/30/EU) where applicable (1)
Guideline number:
327/2011 (EU) where applicable
Guideline number: 1253/2014 (EU) where applicable
Applied harmonized standards
in particular (
2):
EN ISO 12100:2010, EN 60204-1:2018, EN ISO 12499:2008, EN ISO 5136:2010
EN ISO
5801:2017, EN ISO 13350:2015, EN IEC 61000-6-2:2019, EN 61000-6-1:2007
EN 61000-6-3:2007/A1:2011/AC:2012, EN 61000-6-4:2007/A1:2011
Applied national standards
and technical specifications
in particular (3):
BS 848.2-1:2004 (BS ISO 13347-1:2004/A1:2010)
BS
848.6:2003 (BS ISO 14695:2003)
BS 848.7:2003 (ISO 14694:2003/A1:2011)
Basis of self attestation:
Quality Assurance to BS EN ISO 9001:2015
BSI Reg Firm Cert No. FM 155.
Technical file compiled by:
Iain Kinghorn
Axial Way, Colchester, CO4 5ZD, United Kingdom
Signed for and on behalf of the
manufacturer by:
Place: Colchester
Date: 20/07/2020
Position of signatory:
Steve Chesney
Managing Director
Fläkt Woods Limited
Axial Way
Colchester CO
4 5ZD
United Kingdom
Tel: [phone]
Email: [email protected]
Website: www.flaktgroup.com
Registered in England no.
233771
Registered office: Axial Way, Colchester, CO4 5ZD, United Kingdom
© Fläkt Woods Limited July 2020
EC Declaration of Conformity
Designation of equipment:
Series / type: Direct Drive Axial Flow Fan
Fläkt Woods Limited order no:
Relevant EC Council directives: Machinery Directive (2006/42/EC).
17
Routine Maintenance Schedule Every 6
Months
Every 12
Months Comments
1. Examine fan guards (if tted) 3Remove any debris that may have accumulated round or on the
guard surface.
2. Examine motor cooling ns 3Remove any material or dirt which has build-up between the
motor cooling ns.
3. Examine impeller for dirt build-up or
any physical damage 3Remove any build-up of dirt. Ensure impeller is secure. Replace impeller if it is damaged.
4. Check condition and tautness of fan safety
support chains/harnesses/ropes (if tted) 3Clean and inspect safety supports. Replace if there is any deterioration / corrosion detected.
5. Examine and operate vibration sensors
(if tted), and temperature sensors
(if tted) 3
Check operation using built-in sensor test features or dummy
signals. Check that the fan is automatically switched o, or that
a warning indication is provided, when the sensors / switches
indicates a fault.
6. Examine condition of safety guards (if tted)
and associated xings 3Clean safety guards. Replace if there are any signs of excessive corrosion or damage
7. Check operation of anti-condensation
heaters (if tted) 3Switch o power to the motor. Check that the anti-condensation heater is energised (i.e. it is drawing current).
8. inspect the condition of the packing located
behind the motor shaft-seal retaining plate
where the fan is of the ‘bifurcated’ type 3Replace the 130mm Duramid seal if it is damaged
9. Examine the clearance between the
fan impeller blade tips and fan duct.
Check the angle, and the security of
the impeller blades
3
Ensure that the gap between the impeller blade ends and the
fan duct is even and adequate. If in doubt, please contact Woods
Air Movement for advice related blade tip gap. Ensure that the
impeller blades are secure. Blade angle must not be changed
before contacting Woods Air Movement for advice.
10. Check torque of xings used to secure
the fan to its support structure. 3
It is essential to conrm that all xings are properly tted, are
tight, and are fully driven home (see Paragraph 17.1). If in doubt,
please contact Woods Air Movement for advice related to the
torque value of a particular xing.
11. Examine motor, fan and ancillary
equipment xings 3It is essential to conrm that all xings are properly tted, are
tight, and are fully driven home (see Paragraph 17.1) If in doubt
about the torque of a xing contact Fläkt Woods Ltd for advice.
12. Check movement (deection) of
vibration isolators (if tted) 3Check freedom of movement. Tighten anti-vibration mount xings if necessary.
13. Check motor voltage and current
consumption 3Ensure voltage and full load current are as specied on the motor nameplate
14. Inspect paintwork / galvanising nish 3Treat any areas of damage with suitable anti-corrosion paint.
15. Grease motor bearings 3Check requirement in accordance with paragraph 17.2
16. Check fan assembly wiring 3Check security and condition of all wiring
(including the earth).
17. Check fan operation for excessive
vibration levels 3
Vibration levels, whilst the fan is operating, should not be
excessive. If levels are seen to have increased since the previous
inspection, the fan must not be operated until the root cause
has been identied and rectied.
TABLE 1

18
CDE = Clockwise (rotation) looking
at the Driven (impeller) End
ACDE = Anti-Clockwise (rotation)
looking at the Driven (impeller) End
A STANDARD TWO STAGE CONTRA-ROTATING AXIAL FAN COMPRISES 1 OFF FORM A RIGHT-HAND IMPELLER FOLLOWED
BY 1 OFF FORM B, LEFT-HAND IMPELLER
This arrangement does not apply to: identical fans in series, Bifurcated Fans or fans tted with guide vanes.
FIXING ARRANGEMENT OF TERMINAL BLOCK
Diagram only applies to HT (high temperature smoke venting fans) and Bifurcated JM fans.
It does not apply to Series 33 Bifurcated JM fans
Terminal Screw Locknut
Terminal Screw Washer
Customers supply Lead Eyelet
(when tted)
Connecting Links (when tted)
Do not use Copper wire links
Motor Lead Eyelet
Terminal Screw
Terminal Block
Identication Tag
Terminal Screw Lock washer
Brass Washer
(Fitted with Connecting Links)
Packing Washer
(omit from assembly
where stud thread continues
to terminal block surface)
IMPORTANT NOTE:
This drawing shows the correct assembly sequence of Terminal Parts.
It is essential that no Lock washers or Nuts are placed between the Motor
Lead Eyelet, Connecting Link or Customer Supply Lead Eyelet (when tted)
Fixing Torque Values
M4 1.5 Nm - Brass
M5 2.7 Nm - Brass
M6 5.5 Nm - Brass
M8 10.5 Nm - Brass
M10 55.0 Nm - Steel
FIGURE 3
19
WIRING DETAIL: SINGLE PHASE FANS WITH DUCT MOUNTED TERMINAL BOX
Wiring leads in BT/CT motors are black and red in colour instead of being marked as “U1” and “U2”.
WIRING DETAIL: SINGLE PHASE FANS USING TERMINAL BOX ON MOTOR
KUZ U Z P
KZUUZ
To change rotation interchange
U1-U2 in Motor Terminal Box
UZ Z U
K K P
L N
Other circuits if tted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
Internal Capacitor and Integral Overheat Protection
1 PHASE
SPEED CONTROL WARNING
When used with a Speed Controller
Remove link U to P, Connect Controller
UZ to Central K, U to U and Z to P as
shown
CONTROLLERFANPN 502271 CD1705
UZ Z U
K K P
L N
KUZ U Z P
KZUUZ
To change rotation interchange
U1-U2 in Motor Terminal Box
Other circuits if tted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
External Capacitor and Integral Overheat Protection
SPEED CONTROL WARNING
When used with a Speed Controller
Change Capacitor Lead from U to P,
Connect Controller UZ to Central K,
U to U and Z to P as shown
CONTROLLERFANPN 502273 CD1706
KUZ U Z P
KZUUZ
To change rotation interchange
U1-U2 in Motor Terminal Box
Other circuits if tted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
Integral Capacitor and Remote Overheat Protection
SPEED CONTROL WARNING
When used with a Speed Controller
Remove link U to P.
Connections shown below
CONTROLLERFANPN 502260 CD1708
UZ Z U
K K P
L N
To remote
Contactor
Coil Circuit
To change rotation interchange
U1-U2 in Motor Terminal Box
Other circuits if tted:-
SS Thermistor
Overheat Protection
HH Anti-Condensation Heater
External Capacitor
SPEED CONTROL WARNING
When used with a Speed Controller
Change Capacitor Lead from Terminal U
to Terminal P. Connections shown below
CONTROLLERFANPN 502261 CD1709
If tted connect to
Contactor Coil Circuit
UZ Z U
K K P
L N
Diagram APN 502331
1 PHASE
PN 502332 Diagram C
Internal Capacitor Remote Overheat Protector
To Contactor
Coil Circuit
K UZ U Z PK
L
UZ U Z N E
L N E
P Z U UZ K K
N L
P Z U UZ K K
L
N
External Capacitor Remote Overheat Protector
Diagram BPN 502478
P Z U UZ K K
N L
To Contactor
Coil Circuit
PN 502479 Diagram D
External Capacitor Remote Overheat Protector
CD1651 CD1652
FIGURE 1
FIGURE 2
FIGURE 4
KUZ U Z P
KZUUZ

20
WIRING DETAIL: SINGLE-PHASE DIRECT-DRIVE MOTOR WITH SPEED
CONTROLLER
WIRING DETAIL: SINGLE PHASE WEG MOTORS
Suitable Controllers
MT1. - ME1. - AE1. -
External Capacitor with Overheat Protection
used with Auto-Transformer or Electronic Controllers
CONTROLLER
FAN
CD1655
Remove Link
between P & U
(Shown Dotted)
1 PHASE
U
Z or PUZ N L
U UZ K K
L
N
ZP
Diagram J
Suitable Controllers
MT1. - ME1. - AE1. -
Integral Capacitor with Overheat Protection
used with Auto-Transformer or Electronic Controllers
CONTROLLER
FAN
CD1653
Remove Link
between P & U
(Shown Dotted)
U
Z or PUZ N L
U UZ K K
L
N
ZP
Diagram G
Suitable Controllers
MT1. - ME1. - AE1. -
Integral Capacitor with Overheat Protection
used with Auto-Transformer or Electronic Controllers
CONTROLLER
FAN
CD1654
Remove Link
between P & U
(Shown Dotted)
U
Z or PUZ N L
U UZ K K
L
N
ZP
Diagram H
To Contactor Coil Circuit
Suitable Controllers
MT1. - ME1. - AE1. -
External Capacitor with Overheat Protection
used with Auto-Transformer or Electronic Controllers
CONTROLLER
FAN
CD1656
Remove Link
between P & U
(Shown Dotted)
Diagram K
To Contactor Coil Circuit
U
Z or PUZ N L
U UZ K K
L
N
ZP
E1
U1
3
V1
4
W1
E L N
8
U2
2
V2
5
W2
Motor Terminal Block Connections
CD2426
Warning
Lead Numbers to
Reverse Rotation
Interchange 5 & 8
1 Ф Supply
FIGURE 7
21
WIRING DETAIL: THREE PHASE FANS WITH DUCT MOUNTED TERMINAL BOX
3 PHASE
Connect as Diagram ‘A’ for Star/Delta Starting
or ‘B’ for Direct Starting
HH anti-condensation Heaters
KK Overheat Cutouts (Max Amps 2.5)
SS Thermistor (Operating Resistance 3k )
Other
Circuits
if Fitted
PN 83771
W2 U2 V2
U1 V1 W1
W2 U2 V2
U1 V1 W1
A
TO STARTER
B
Connect as Diagram ‘A’ for Voltages above 340
or ‘B’ for Voltages up to 250
HH anti-condensation Heaters
KK Overheat Cutouts (Max Amps 2.5)
SS Thermistor (Operating Resistance 3k )
Other
Circuits
if Fitted
PN 83772
CD 1344/1
W2 U2 V2
U1 V1 W1
A
B
W2 U2 V2
U1 V1 W1
Connect as Diagram ‘2’ for High Speed
or ‘1’ for Low Speed
HH anti-condensation Heaters
KK Overheat Cutouts (Max Amps 2.5)
SS Thermistor (Operating Resistance 3k )
Other
Circuits
if Fitted
PN 407941
CD 1559
3 PHASE
MOTOR
1. LOW SPEED
2. HIGH SPEED
W2 U2 V2
U1 V1 W1
W2 U2 V2
U1 V1 W1
FIGURE 5
FIGURE 6

22
WIRING DETAIL: THREE PHASE FANS
USING TERMINAL BOX ON MOTOR
WIRING DETAIL: THREE-PHASE MOTOR, WITH ISOLATOR FITTED
3 PHASE
CD1683
Constant speed (Single Voltage) Unregulated
W1 V2 U2 W2V1U1
3 PHASE
SUPPLY
V<260
3 PHASE
SUPPLY
DELTA
STAR
PN502333
V>340
3 PHASE
SUPPLY
Diagram E
Constant speed (Dual Voltage Single Speed)
W1 U2 V2 W2V1U1
W NVU
W NVU
V1 W2 W1U2V2U1
CD1545
L1 L2 L3E
U V W
1 3 5
2 4 6
CD1550
Warning :- Control Gear must suit Pole Change (Tapped Wound, Dahlander or Pam)
Windings provided Suitable Woods Starter / Change Over Unit EDC19
HIGH SPEED LOW SPEED
L1 L2 L3
EL1 L2 L3
1 3 5 7 911
2 4 6 8 10 12
2U 2V 2W 1U 1V 1W
TWO SPEED MOTOR UNITS. POLE CHANGING TYPE
P.N. 407356
MOTOR LEADS
CD1547
HIGH SPEED LOW SPEED
L1 L2 L3
EL1 L2 L3
1 3 5 7 911
2 4 6 8 10 12
2U 2V 2W 1U 1V 1W
TWO SPEED MOTOR UNITS. TWO WINDING TYPE
P.N. 406609
MOTOR LEADS (TWO WINDING TYPE)
CD1546
L1 L2 L3
EL1 L2 L3
1 3 5 7 911
2 4 6 8 10 12
U V W U V W
STANDBY MOTOR UNITS
P.N. 406608
MOTOR 1 LEADS MOTOR 2 LEADS
FIGURE 10
23
FIGURE 8
WIRING DETAIL: THREE-PHASE DIRECT-DRIVE MOTOR WITH TRANSFORMER TYPE SPEED CONTROLLER
WIRING DETAIL: THREE-PHASE DIRECT-DRIVE MOTOR WITH ELECTRONIC TYPE SPEED CONTROLLER
WIRING DETAIL (THREE-PHASE DIRECT-DRIVE MOTOR WITH CHANGEOVER SWITCH)
3 PHASE
SUPPLY
TRANSFORMER
CONTROLLER
FAN
CD1659 Diagram S
Star Connected Fan with Auto-Transformer Speed Controller
W NVU
W L1VU
SUITABLE CONTROLLER MT3.-
L2 L3
CD1657 Diagram P
Star Connected Fan with Electronic Speed Controller
SUITABLE CONTROLLER MT3.-
3 PHASE PLUS
NEUTRAL SUPPLY
CONTROLLER
FAN
STAR CONNECTED
W NVU
W NVU L1 L2 L3
CD1658 Diagram R
DELTA Connected Fan with Electronic Speed Controller
SUITABLE CONTROLLER MT3.-D
3 PHASE PLUS
NEUTRAL SUPPLY
CONTROLLER
DELTA CONNECTED FAN
(DIAGRAM F WITH LINKS OMITTED)
V1 W1U1L3 V2 U2 W2
V1 W1U1 U2 W2 V2
L2L1
3 PHASE
3 PHASE
CD1661 Diagram X
DELTA Connected Fan for Full Speed with Delta-Star Speed Change Switch
SUITABLE CONTROLLER MDS3.-D
3 PHASE SUPPLY
DELTA CONNECTED FAN
(DIAGRAM F WITH LINKS OMITTED)
V1 W1U1L3 V2 U2 W2
V1 W1U1 U2 W2 V2
L2L1
CHANGEOVER SWITCH
FIGURE 11
3 PHASEFIGURE 9
3 PHASE FIGURE 12
MOTOR LEADS
P.N. 406607
3 PHASE
SUPPLY
CD1660 Diagram T
Delta Connected Fan with Auto-Transformer Speed Controller
W1 V2V1U1
SUITABLE CONTROLLER MT3.-
TRANSFORMER
CONTROLLER
FAN
U2 W2
W L1VU L2 L3
PN502334 Diagram F
3 PHASE
SUPPLY
W1 V2 U2 W2V1U1
3 PHASE
SUPPLY
LOW
HIGH
W1 V2 U2 W2V1U1

NOTE
A) These gures shown apply unless shown otherwise on specic Assembly drawings.
B) All Joints are to be dry except Stainless Steel which is to have MOLYCOTE 1000 Paste Compound,
prior treatment of Loctite Activator T will decrease curing time if necessary.
C) All values are in Nm The conversion factor is given for lbf-ft equipment. lbf-ft = Nm x 0.7375.
D) There is a tolerance on Torque Wrenches up to ± 5%.
E) Nuts are to be tightened only once so no over tightening can occur.
F) The Head of the Screw makes no dierence to torque gures other than how the torque is supplied.
The Screw or Base Material are the important factors for torque.
G) When using two materials always use the lowest gure of the two
H) The gure to be used on AEG Capacitor Studs is 4 Nm.
I) The material being clamped is only to be taken into consideration if it is Hollow, very Ductile or Plastic.
Please seek advice where necessary.
J) For special applications or if you have specic queries, please ask for advice.
Type 1
Plain Screw and Nut with Washers holding Two Plates
together.
(1)(2)(3)
Type 2
Hex HD Screw with Nut Clamping Two Hub Halves
together for JM and Climafans gure for ASSY &
Re ASSY are on the relative ASSY Drawings.
All gures for Clamp Plates appear on
Drawing 133344
Type 3
Screw with Washer Holdig Plate screwed into
Tapped Metal.
(4)(5)(7)(9)
Type 4
Locking Screw & Heavy Washer tted into the motor
shaft. Details are be shown on the associated specic
table. Nylon Patch is designed to hold Screw locked
against vibration.
LONGLOC
TUFLOK/ESLOC
Screw
(10)
Type 7
Screw and Washers through Plate into Nutsert or
Prestincert for a Welded Nut see Mild Steel gures.
(6) (10)
Type 8
Tightening of Studs on outside of PVC Ducts.
Fixing
Size
Stainless
Steel PVC
Duct
M8 10.00
Type 5
Two Nuts & Washers either
side of a Plate on a Stud.
Type 6
Studding screwed into material with Nut & Washer
hold them in place.
(1)(2)(3)
(4)(5)(9)(7)
24 25
FIGURE 14
Fixing Size (1) Steel
8.8
(2)
Stainless
Steel
A2, A4 Prop 70
(3) M.S
Fixings
Not 8.8 Grade
(4) Steel into
Tapped M.S
(5) Steel into
Extruded AL
(6) Nutsert (7) Screw
into Cast
Alum
Also see Motor
Table below
(8) Taptite
Self Forming
(9) Into
Cast Iron
Also see Motor
Table below
(2) Stainless
Steel
A2, A4 Prop 80
M4 3.5000 2.0000 2.0000 2.0000 - 3.50 - 3.000 1.000 2.7
M5 7.0000 3.9 3.5000 3.5000 - 7.00 - 6.000 1.750 5.3
M6 12.000 6.9 6.0000 6.0000 5.00 12.00 7.00 10.000 3.000 9.2
M8 28.000 17.0 15.000 15.000 10.00 28.00 14.00 25.000 7.500 22.0
M10 55.000 33.0 30.000 30.000 20.00 40.00 28.00 55.000 15.000 43.0
M12 100.00 56.0 50.000 50.000 36.00 55.00 50.00 95.000 25.000 75.0
M14 155.00 89.0 80.000 80.000 60.00 - 85.00 - 40.000 119.0
M16 245.00 136.0 120.00 120.00 95.00 - 135.00 - 60.000 181.0
M18 335.00 191.00 170.00 170.00 - - - - 85.000 254.0
M20 475.00 267.00 240.00 240.00 178.00 - 200.00 - 120.000 356.0
M22 645.00 364.00 325.00 325.00 245.00 - 300.00 - - 485.0
M24 820.00 460.00 410.00* 410.00 310.00 - 420.00 - 450.000 613.0
Fixing Size (10)
Prestincert
M4 9
M5 11.5
M6 12
M8 21
M10 23
M12 35
Pad and Foot Mounted Torque Settings
On Hollow Foot use Load Spreading Washers and same Torque as Solid
Foot
Motor Pad to Arm Foot Mount
Frame
Size
Thread
Hole
Aluminium Cast
Iron
All Washer
Torque Settings in Nm
D63/71 M8 Taptite 20-25 20-25 20-25
M8 Taptite Reassembly 15 15
D63/71 M8 15 15
M10 35 35 50
D80 M12 55 55 85 83770
D90 M12 55 55 85 1504
D100 M12 55 55 85 411590
D112 M12 55 55 85 4115990
D132 M16 135 135 180 251691
D160/180 M20 240 240 350 251692
D200-315 M24 450 450 267652
Larger M24 450 450
Table 10 Shaft End Fixngs
Motor
Size
Thread
Size
Torque
Value
BT4, 5 & 9
CT5,CT9 &D80 M6 006.000
D90S & D90L M8 015.000
F22, D100L & D112M M10 030.000
DS132S, D132M M12 050.000
D160M, D160L
D180M, D180L M16 120.00
D200L, D225S
D225M, D250S
D250M, D280S M20 180.00
D280M, D315S
D315M
D315 ABB M24 295.000
Larger M24 295.000
NOTE: All Foot Mounted Motor Fixings must have Loctite Compound applied.
Where any xings exceed M24, please contact Woods Air Movement Limited -
Engineering Department) for assistance. There must be at least x1.5D thread
engagement available for Cast Iron Motors and x2D for Aluminium Motors. If in
doubt, please contact Woods Air Movement Limited - Engineering Department.
(B) NOTE: that all Taptite Screws may
need a high torque to start the thread
forming process.
NOTE: Brass Fixings have half the
shear strength of cast iron so use half
the gures for Tapped Cast Iron.
DIAGRAM NOTE FOR FIXING TYPES: The numbers shown thus (1) in the boxes are to
show the Screw Types and Tapped Materials which are applicable to the diagram shown.
FIGURE 13
*Includes
T Bolts

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WAM_DC_00000GB_Document name_OM_20200000_R0 © Copyright 2020 Woods Air Movement