Aerofoil Axial - Flow Fan
Safety, Installation, Operation and Maintenance Instructions
Part No.416421
CONTENTS
Paragraphs
–
Safety
Introduction And Purpose
General
Storage and handling
1
1.1
1.2
Mechanical Installation
General
2
2.1
Electrical Installation and Operation
General
Capacitors
Overheat protection
Bearing temperature, vibration and level monitoring sensors
Anti-condensation heater
Emergency-use fans
Fans with flameproof motors
Switch-on
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Maintenance
General
Infrequent use
4
4.1
4.2
Overhaul/Extended Maintenance
5
Fault Finding
Electrical
Mechanical
6
6.1
6.2
Disposal
7
1
Table
Routine Maintenance Procedures
1
Figures
Wiring Detail (Single-Phase Direct-Drive BT/CT Type Motor,
Standard Temperature S-Type Fan)
1
Wiring Detail (Single-Phase Direct-Drive BT/CT Type Motor,
Standard Temperature L-Type Fan, High Temperature L
and S-Type Fans)
1
Wiring Detail (Single-Phase Direct-Drive Motor with
Speed Controller)
2
Wiring Detail (Single-Phase Belt-Drive Motor with Isolator Fitted)
2
Wiring Detail (Three-Phase Direct-Drive BT/CT Type Motor,
Standard Temperature L-Type Fan, High Temperature L
and S-Type Fans)
3
Wiring Detail (Three-Phase Direct-Drive BT/CT Type Motor,
Standard Temperature S-Type Fan)
4
Wiring Detail (Three-Phase Direct-Drive Motor with
Transformer Type Speed Controller)
4
Wiring Detail (Three-Phase Direct-Drive Motor with
Change-Over Switch)
4
Wiring Detail (Three-Phase Direct-Drive Motor with
Electronic Type Speed Controller)
5
Wiring Detail (Three-Phase Motor with Isolator Fitted)
5
Fixing Arrangement of Terminal Block
(Drawing No: D258302 F)
6
Drawing of Torque Settings for Fixings
(Drawing No: D248284 K)
7
2
SAFETY
WARNING:
ONLY APPROVED, QUALIFIED 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.
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, FLÄKT WOODS LIMITED OR
THEIR REPRESENTATIVE SHOULD BE CONTACTED FOR ADVICE.
WARNINGS AND SAFETY INFORMATION RELEVANT TO SPECIFIC OPERATIONS ARE
CONTAINED AT THE START OF THE SECTIONS TO WHICH THEY APPLY.
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.
1
INTRODUCTION AND PURPOSE
1.1
General
1.1.1 The Aerofoil Axial-Flow Fan is a highly efficient 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 have a
specification, which calls for operation in high temperature emergency conditions, this will be
identified on a special label on the fan casing (see also Paragraph 3.6).
1.1.2 The fan assembly is manufactured and aligned specifically to fulfil the requirement of the
installation for which it was designed. No deviation from the original requirement should be
implemented without referring to Fläkt Woods Limited head office in Colchester. Any queries
regarding safety or operating problems should be referred to the local Fläkt Woods office,
sales centre or representative, together with full fan/motor nameplate details. Should a fan
failure occur whilst the product is under warranty, the Fläkt Woods service centre in
Colchester should be contacted before any repair work is undertaken.
1.1.3 A frequency inverter type speed controller should only be used to control the fan if the
inverter complies with Product Information Specification C22a.02. A copy of the specification
is available from Fläkt Woods Limited.
1.2
Storage and handling
WARNING:
WHEN FAN ASSEMBLIES ARE RETAINED IN STORAGE, ACCESS BY UNAUTHORISED
PERSONS MUST BE PREVENTED WITH THE USE OF GUARDS, BARRIERS OR SECURE
PREMISES SUCH THAT FAN IMPELLERS THAT MAY BE ROTATING (WINDMILLING) DO NOT
PRESENT A HAZARD.
3
1.2.1 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
should be considered as a protective device only. The crate must not have equipment stacked on
it, and it must not be stacked on other equipment. The crate structure must not be used as a
lifting aid unless otherwise indicated. A fork-lift truck or similar should be used for moving the
crate. The fan should be stored in a safe, clean, dry, vibration free, location. If such storage
conditions are not available the motor anti-condensation heater (if fitted), should be connected to
an appropriate electrical power supply to prevent motor condensation forming, and the fan should
be stored in an appropriate container. A regular monthly rapid spin of the impeller is
recommended to prevent grease hardening and possible brinelling of the bearings; the impeller
should not be in the same angular position after rotation.
1.2.2 When dismantling the crate to gain access to the fan assembly care should be taken to avoid
injury from sharp edges, nails, staples, splinters, etc.
1.2.3 If the fan is to be stored for 12 months or more, an inspection by Fläkt Woods Limited service
centre in Colchester before commissioning is advised.
2
MECHANICAL INSTALLATION
WARNING: IT IS RECOMMENDED THAT SUITABLE SAFETY GUARDS FORM PART OF THE INSTALLATION.
SUCH DEVICES, AND ADVICE ON SAFETY DEVICES, ARE AVAILABLE FROM FLAKT WOODS
LIMITED.
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.
ALL LIFTING AIDS USED DURING INSTALLATION SHOULD BE ADEQUATELY CERTIFIED TO
CARRY THE WEIGHT OF THE EQUIPMENT BEING LIFTED. (SEE PARAGRAPH 2.1.1).
ALWAYS WEAR APPROPRIATE PROTECTIVE CLOTHING (INCLUDING HARD HATS, EYE
PROTECTORS AND EAR DEFENDERS) WHEN WORKING IN THE VICINITY OF THE FAN
ASSEMBLY.
DURING LIFTING OF THE FAN ALL PERSONNEL MUST BE CLEAR OF THE AREA BELOW THE
SUSPENDED FAN.
NOTE:Before installing the fan assembly, check that it has not been damaged in transit, that there is no
deformation of the fan casing, that the impeller rotates freely, and that the fan and motor nameplate
data complies with the requirement of its use. If the fan assembly has been stored the resistance of the
motor windings to earth should be measured (at 500V d.c). If any reading is less than ten megohms the
motor should be dried and re-checked before it is switched on.
2.1
General
2.1.1 The fan assemblies can be heavy (between 270 kg and 8000 kg, depending on fan and motor
size, with ancillary equipment such as silencers, guards, bellmouths, adding to the weight), are
sometimes unwieldy, and should be lifted slowly to prevent damage and distortion. Proper
precautions must be taken, and certified lifting aids used, to ensure 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 nstalled such that it is correctly positioned in accordance
with the required airflow direction. An airflow indication arrow is shown on the fan nameplate.
Sharp bends in the ductwork close to the fan must be avoided. Adequate room must be allowed
round the fan for inspection and maintenance.
4
2.1.2 The component parts of the fan assembly, including (if fitted) anti-vibration mounts, silencers,
bellmouths, flexible connectors (and their clips), purlin boxes, weather proofing, 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. Appropriate fixings, with the correct
torque applied, must be used to secure the fan into position. If in doubt about the torque of a
particular fixing, contact Fläkt Woods Limited for advice. The final position of the fan must be
strong and rigid enough to take the weight of the fan and any other weight applied during
installation. Vibration isolators, appropriate for the weight of the fan, are recommended in
order that any vibration of the fan is isolated so that no resonant frequencies are generated in
surrounding fixtures. If vibration isolators are used, flexible connectors and flexible electrical
conduit should also be used. The vibration isolators and flexible connectors must not be used
to align fixing points that are clearly misaligned. If any component parts do not easily fit
together the cause must be investigated and rectified.
2.1.3 Motors are fitted with a drain hole in each end cover, and in the terminal box. The motor
drain hole should be at the lowest point of the motor when it is installed. Plugs that cover the
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 be dictated by environmental
conditions, a record should thus be kept.
2.1.4 Bifurcated fans when mounted on their horizontally axis should have the ‘tunnel opening’ facing
downwards between 3 o’clock and 9 o’clock.
2.1.5 After installation all packing materials must be disposed of in accordance with Paragraph 7.
3
ELECTRICAL INSTALLATION AND OPERATION
WARNING: NO WORK SHOULD BE ATTEMPTED BEFORE COMPLETELY ISOLATING THE FAN ASSEMBLY,
ITS ANTI-CONDENSATION HEATER (IF FITTED), AND ITS CONTROLS FROM ALL ELECTRICAL
SUPPLIES, AND ALLOWING THE ROTATING PARTS OF THE FAN TO COME TO REST.
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 WINDMILL.
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 INSTALLATION OF THE FAN CAN BE ASSURED; FLäkt Woods Limited OR
THEIR REPRESENTATIVE SHOULD BE CONTACTED FOR ADVICE.
IF THE FAN ASSEMBLY IS DESIGNED FOR HIGH-TEMPERATURE EMERGENCY-USE; IT IS
IMPERATIVE THAT THE WIRING USED IS HIGH TEMPERATURE RATED, AND THAT ALL
SWITCHES AND CONTROLS ARE OVERRIDDEN DURING THE EMERGENCY OPERATION.
IF THE FAN STOPS DUE TO AN OVERHEAT SITUATION, THE OVERHEAT PROTECTION
THERMOSTAT (IF FITTED – SEE PARAGRAPH 3.3.1) MAY RESET AS THE TEMPERATURE
COOLS AND AUTOMATICALLY RESTART THE FAN IF POWER IS STILL APPLIED.
ALWAYS WEAR APPROPRIATE PROTECTIVE CLOTHING (INCLUDING HARD HATS, EYE
PROTECTORS AND EAR DEFENDERS) WHEN WORKING IN THE VICINITY OF THE FAN
ASSEMBLY.
5
3.1
General
3.1.1 The fan assembly is fitted with either a terminal box on the motor or a terminal box on the
fan duct. The electrical supply to the fan assembly should be connected to the terminal box by
an appropriately qualified electrician. It is good practice to fit a clearly marked isolator switch
close to the fan, and have a clearly marked and accessible push button starter switch remote
from the fan. The two switches allow safe control of the fan and provide a means of safely
isolating the fan during maintenance. A suitable earth must also be connected. Sufficient
cable length should be provided to allow for the flexibility of the fan on its vibration isolators (if
fitted). A connection diagram providing wiring details is supplied with larger fan assemblies.
Figures 1 to 5 show details of the wiring to the terminals of smaller fans. Figure 6 shows the
correct assembly sequence of terminal box parts, and the torque to be applied. It is essential
that no lockwashers or nuts are placed between the motor lead eyelet, connecting link or
customers supply lead eyelet (when fitted).
3.1.2 Fuses in the fan electrical control circuit must be sufficiently rated to carry the starting
current as indicated on the motor nameplate, but they should be regarded as only protecting
the wiring against the effects of short circuits or earth faults. The fuses are not suitable for
overload protection. To provide full protection for the motor, a starter panel with overload
protection should be used, and an isolator switch must be incorporated into the circuitry. The
isolator switch should be a lockable type that will allow the operator/maintainer to isolate the
fan from the electrical supply before working on the assembly.
3.1.3 If a speed controller, or other controlling equipment, forms part of the system it should be
able to control the fan within safe limits. Sufficient fan speed must be maintained to open any
shutters that may be in the air-flow. The controlling equipment should be securely located,
and should not be, or cause, a radiation hazard.
Three-wire control is preferable to two-wire control. Two-wire control can be used on motors
up to a full load current of 3 amps, but above 3 amps three-wire control is recommended
to avoid increased temperature rises in the motor windings. Care should be taken to ensure
that the fan is able to be controlled by a speed controller. Fläkt Woods Limited can be
contacted for advice on al forms of speed controllers and other control equipment supplied by
the Company.
3.1.4 Speed controllers should not be used without prior agreement with Fläkt Woods Limited.
3.1.5 Fans with a duct-mounted terminal box must have their electrical supply fed through an entry
point in the side of the box. Unused entry points must be sealed with weatherproofed plugs or
grommets.
3.1.6 Fans with a motor-mounted terminal box also have the electrical supply fed through an entry
point in the side of the box. The cable must be threaded through a gland assembly, and the
gland assembly should be tightened sufficiently to hold the cable and provide a weatherproof
seal.
3.2
Capacitors (single-phase motors only)
3.2.1. Low rated capacitors are mounted on the motor during manufacture. Larger rated
capacitors, are supplied separately and must be fitted externally from the motor. Capacitors
for flameproof motors must be located outside the hazardous area.
3.3
Overheat protection
3.3.1. Motor overheat protection (if fitted) can be fitted on all single-phase and three-phase motors.
Overheat protection is achieved by the use of either thermostats or thermistors. The
protection devices are wired in either of the following two ways:
3.3.1.1 on single-phase and 3-phase motors with a full load current of up to and
including 6.3A:
thermostats are wired in series with the motor winding; they operate by opening
and closing with temperature to automatically open circuit the winding and stop the
fan in an overheat situation (see Section 3 Warning). On cooling, the motor will
automatically re-start, however on single-phase motors of this type, manual re-start
can be achieved by removing the link between terminals K and UZ and wiring
terminals K – K directly to the motor start contactor, thermistors are wired to
separate terminals (S –S) within the terminal box; they change their resistive value
with temperature and must be wired to control the motor start contactor via a
suitable relay.
6
3.3.1.2
on single-phase and three-phase motors with a full load current above 6.3A:
thermostats are wired to separate terminals (K – K) within the terminal box;
they operate by opening and closing with temperature and must be wired to
directly control the motor start contactor,
thermistors are 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 that when the motor cools the thermostat will reset; the motor however
must not be able to start until the motor start contactor is manually reset.
3.4
Bearing temperatures, vibration and level monitoring sensors
3.4.1 Monitoring sensors (if fitted) in the fan system should be wired to automatically switch off
the fan if a fault occurs, or provide an indication of a fault. If the fan is automatically
switched-off by a monitoring sensor the wiring must ensure that it is fully isolated and will
not automatically reset. If the fan is designed for emergency use the circuit must be wired to
allow the emergency use system to override all monitoring devices and immediately switch
on the fan in the case of such an emergency situation (see Section 3.6).
3.5
Anti-condensation heater
3.5.1 Anti-condensation heaters are terminated in a terminal box on the fan and must be
externally wired to automatically receive the appropriate supply when the motor is switched
to off. When the motor is switched on the anti-condensation heater is not required and thus
must be automatically switched out of circuit.
3.6
Emergency-use fans
3.6.1 Where the fan assembly is designed for emergency-use smoke-extraction at high
temperature, the temperature/time capability will be shown on a special label adjacent to
the main nameplate. An automatic control system, or a clearly marked remotely sited
emergency-use switch, must be fitted to override all other switches and controls and
immediately switch on the fan in the case of such an emergency situation. High temperature
cable must be used between the remote switch and the fan, and the electrical supply must
be from a guaranteed or separately maintained source to enable the unit to continue running
during the emergency condition. After such an emergency the fan must be removed,
refurbished or safely disposed of (see Paragraph 7), and replaced as necessary.
3.7
Fans with flameproof motors
3.7.1 Fans with flameproof motors are designed for use in locations where there are liable to be
fumes, dust or flammable/explosive gases. Installation should be carried out by qualified
personnel. Special care must be exercised when electrically connecting such units to ensure
that a secure flameproof connection is achieved. Great care must be taken to ensure that
the thread of cable glands, or conduit, matches its corresponding thread so that the entire
installation achieves the flameproof barrier required. A stopper barrier box, where fitted,
must be filled with a barrier compound when the connections have been made. The long
cased, fully ducted, fans fitted with an ENV89 motor have their terminal box mounted on the
motor. The supply cable to the motor terminal box must be fed through the conduit hole in
the fan duct and connected into the terminal box before the fan is fully installed (i.e. before
the inlet and outlet ducts are fitted). Any electrical control gear (including the capacitor in
the case of single-phase motors) must be
located outside the hazardous area if they are
not of a flameproof type. The motor should not be allowed to become coated with
dirt/dust, etc. which could restrict surface cooling and consequently raise the temperature
of the motor carcase. If in doubt about the achievement of a flameproof barrier, contact
Fläkt Woods Limited for advice.
7
3.8
Switch-on
3.8.1. Before switching confirm that the electrical supply is fully compliant with the requirement of
the motor as detailed on the motor nameplate, that the fan is correctly installed, all
component parts and fixings are secure, safety guards are in place and no loose articles are
present in the vicinity.
3.8.2. Immediately on switch-on check the assembly for smooth, low-vibration running, and check
that the current consumption is within the full load current specified on the nameplate. A trial
connection of the three-phase supply should be made to check that the fan rotates in the
required direction. If the rotation is incorrect interchange any two phases of the incoming
supply at the motor terminal block. If after correctly connecting the single-phase supply the
fan is found to be rotating in the wrong direction, the motor winding leads U1 and U2 should
be interchanged at the motor terminal block. The fan must not be switched on and off in a
manner that could cause overheating of the motor or its wiring.
3.8.3. On belt-driven motors allow the fan to run for two hours after initial installation and then check
the belt tension in accordance with Table 1 Item 8.
4
MAINTENANCE
NOTE: The maintenance procedures are designed to keep the roof unit safe, operational and fault-free.
WARNING:
NO MAINTENANCE WORK SHOULD BE ATTEMPTED BEFORE SWITCHING OFF AND
COMPLETELY ISOLATING THE FAN ASSEMBLY, ITS ANTI-CONDENSATION HEATER
(IF FITTED), AND ITS CONTROLS, FROM ALL ELECTRICAL SUPPLIES AND ALLOWING THE
ROTATING PARTS OF THE FAN TO COME TO REST.
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 WINDMILL.
ALL LIFTING AIDS USED DURING MAINTENANCE, AND ALL LIFTING POINTS UTILISED,
SHOULD BE ADEQUATELY CERTIFIED TO CARRY THE WEIGHT OF THE EQUIPMENT BEING
LIFTED. (SEE PARAGRAPH 2.1.1).
ALWAYS WEAR APPROPRIATE PROTECTIVE CLOTHING (INCLUDING HARD HATS, EYE
PROTECTORS AND EAR DEFENDERS) WHEN WORKING IN THE VICINITY OF THE FAN
ASSEMBLY.
4.1
General
4.1.1 Maintenance must be carried out on the fan assembly by appropriately qualified personnel
using the correct tools and equipment. A regular routine maintenance schedule should be
established, and a record kept. A list of suggested intervals are given in Table 1. Where the
environment is particularly dirty, a reduction in the intervals may be necessary. Internal and
external fan surfaces may be cleaned with low pressure clean water and non-abrasive
additives. Direct application of water from any direction to the motor drain plugs must be
avoided.
4.1.2 It is essential to ensure that all fixings on the fan assembly are secure. When examining and
checking the security of fixings during routine maintenance (see Table 1 Items 11 and 12),
those fixings that have locking devices fitted or are painted over, need not be disturbed if they
can be seen to be 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. Those fixings that have no locking devices fitted and
are not painted over, should be checked at 95% of their original setting to ensure no
unnecessary disturbance of the fixing. See Figures 6 and 7 for torque setting details. If in
doubt about the torque of a particular fixing contact Fläkt Woods Limited for advice.
8
4.1.3 In addition to routine maintenance motor bearings will in the longer term require attention. If
the motor bearings are greased through extended lubricators, the grease should be
periodically applied in accordance with the instructions on the fan or motor nameplate. A
compatible grease type must be used and it is essential that every trace of water and dirt is
removed from around the grease points and that a clean grease gun is used. Only low
pressure should be needed to inject the specified quantity of grease. If a high pressure is
required, the cause should be investigated. Grease points are generally located in the region
of the duct terminal box.
4.1.4 After maintenance ensure that no loose articles are 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 windmilling has been removed.
4.2
Infrequent Use
4.2.1 If the fan assembly is to be used less frequently than once a month, or for emergency-use
only, the following additional maintenance procedures should be carried out, and a record
kept:
5
4.2.1.1
the resistance of the motor windings to earth, should be measured (at 500V
d.c) each month. If the reading is less than ten megohms, the motor should be
dried in a warm airflow (typically 40°C) and re-checked before running the
motor,
4.2.1.2
the fan should be operated for at least two hours each month to ensure
correct lubricant conditions in the bearings,
4.2.1.3
the ‘emergency-use’ system should be run continuously for a minimum of fifteen
minutes each month, the test should ensure that the emergency use control
system overrides all other controls and switches (see Paragraph 3.6),
4.2.1.4
if an anti-condensation heater is fitted, check each month that it is automatically
switched on (drawing current) when the motor is switched to off.
OVERHAUL/EXTENDED MAINTENANCE
5.1
Advice on motor overhaul procedures, bearing/seal replacement, motor replacement, motor
rewinding, spare parts, condition monitoring, vibration analysis, refurbishment, etc. is
available from Fläkt Woods Limited service centre in Colchester. It is recommended that the
motor shaft seals and bearings are replaced after 20,000 hours or 5 years of normal
operation which ever comes sooner, and that the motor is rewound to its original specification
after 40,000 hours of normal operation to ensure that adequate insulation life is available
should the fan be required for emergency operation. The motor manufacturer’s specification
sheets are available through Fläkt Woods Limited.
5.2
After overhaul/extended maintenance the fan assembly must be correctly installed back into
its original position in accordance Paragraphs 1, 2 and 3 of this document. Before switching
on the motor confirm that the electrical supply is fully compliant with the requirement of the
motor as detailed on the motor nameplate, that the fan is correctly installed, that all
component parts and fixings are secure, safety guards are in place and no loose articles are
present in the vicinity. Immediately on switch-on check the assembly for smooth, low-vibration
running, and check that the current consumption is within the full load current specified on
the nameplate. A trial connection of the three-phase supply should be made to check that the
fan rotates in the required direction. If the rotation is incorrect interchange any two phases of
the incoming supply at the fan terminal block. If after correctly connecting the single-phase
supply the fan is found to be rotating in the wrong direction, the motor winding leads U1 and
U2 should be interchanged at the motor terminal block.
9
6
FAULT FINDING
NOTE: The routine maintenance procedures detailed in Paragraph 4, and Table 1, of this document are
designed to keep the fan operational and fault free.
6.1
Electrical
6.1.1 Check that the electrical connections to the unit are secure.
6.1.2 Check that the voltage applied to the unit is as specified on the motor nameplate, and is
balanced.
6.1.3 Connect an ammeter in line with 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
specified on the motor nameplate. Check that the supply voltage at the fan terminals is as
expected and is balanced.
6.1.4 Measure each motor winding to earth, and between each winding, using a 500V d.c
insulation tester. If the reading is less than ten megohms the reason is liable to be dampness
in the motor. To dry the motor place it in a warm (typically 40 degrees centigrade) dry
airstream and regularly monitor the motor until the insulation reading is restored to ten
megohms or greater. If the reading remains less than ten meghoms a break-down in the
motor winding insulation could be the reason, and a motor rewind/overhaul may be
necessary.
6.1.5 Ensure that there is no smell of burnt insulation in the vicinity of the motor.
6.2
Mechanical
6.2.1 Check that there is no obstruction to the motor impeller blade, that the blade is clean, and no
loose articles or debris in the vicinity.
6.2.2 Rotate the motor shaft by hand. Investigate any sound of internal chaffing, rubbing or
stiffness. Any stiffness may indicate that the bearings require lubrication or replacing.
6.2.3 Ensure that all fixings are secure.
6.2.4 On belt driven units check that the belt is not broken or slipping.
7
DISPOSAL
The 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 infill (Note that a face mask and gloves should be worn when handling the infill. If the
infill is particularly dry or is damaged it should be damped-down before disposal).
10
ROUTINE
MAINTENANCE SCHEDULE
EVERY
6
MONTHS
EVERY
12
MONTHS
COMMENTS
1.
Examine the airw ays into the
fan guards (if fitted).
*
Remove any debris that may ha ve accumulated round the
guards.
2.
Examine motor cooling fins .
*
Remove any material/dirt build-up between the motor fins.
3.
Examine impeller for dirt buildup and for any physical damage.
*
Remov e 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 fitted).
*
Clean safety supports . Replace them if there is any
deterioration/corrosion.
5.
Examine and operate vibration
sensors (if fitted), level
switches (if fitted), and
temperature sensors (if fitted).
*
Check operation using built-in sensor test features or
dummy signals. Check that the fan is automatically
switched off, or a warning indication is provided, when
the sensors/switches indicates a fault.
6.
Examine condition of safety
guards (if fitted) and their fixings.
*
Clean safety guards . Replace them if there are any
signs of damage .
7.
Check operation of anticondensation heaters (if fitted).
*
Switch off the power to the motor. Check that the
anti-condensation heater is energised (drawing current).
8.
On ‘belt-drive’ motors inspect
the belt and its mechanism.
*
Ensure that the area is clean. Set the belt tension for
deflection (at the middle point of the belt) of 16mm per
metre of span as follows:
Belt
Diameter of
Force for
section:
smaller pulley (mm)
deflection (kg):
SPZ
67 - 95
1.0 to 1.5
SPZ
100 - 140
1.5 to 2.0
SPA
100 - 132
2.0 to 2.7
SPA
140 - 200
2.8 to 3.5
Z
56 - 100
0.5 to 0.8
Belt and guard replacement information is available from
Fläkt Woods Limited.
9.
On ‘bifurcated’motors remove
the impeller and inspect the
packing located behind the
motor shaft-seal retaining plate.
*
Replace the 130mm Duramid seal if it is damaged.
10. Examine the clearance
between the fan impeller
blade tips and the fan duct.
Check the angle, and the
security of the impeller blades .
*
Ensure that the gap between the impeller blade ends and
the fan duct is even and adequate . If in doubt about the
gap contact Fläkt Woods Limited for advice . Ensure that
the impeller blade is secure . The blade angle must not be
changed before contacting Fläkt Woods Limited for advice .
11. Check torque of fan-tosupport fixings.
*
It is essential to confirm that all fixings are properly
fitted, are tight, and are fully driven home (see Paragraph
4.1.2).If in doubt about the torque of a fixing contact Fläkt
Woods Limited for advice .
12. Examine motor, fan and
ancillary equipment fixings .
*
It is essential to confirm that all fixings are properly fitted,
are tight, and are fully driven home (see Paragraph 4.1.2).If
in doubt about the torque of a fixing contact Fläkt Woods
Limited for advice.
13. Check mov ement of vibration
isolators (if fitted).
*
Check freedom of mo vement.Tighten fixings if necessary.
14. Check motor voltage and
current consumption.
*
Ensure voltage and full load current are as specified on
the motor nameplate.
15. Inspect paintwork/galvanising.
*
Treat any areas of damage with suitable anti-corrosion paint.
16. Grease motor bearings .
*
Check requirement in accordance with parag raph 4.1.3.
17. Check fan assembly wiring.
*
Check security, and condition, of all wiring (including the
earth).
TABLE 1: ROUTINE MAINTENANCE PROCEDURES
11
1 PHASE.
1 PHASE.
INTERNAL CAPACITOR AND INTEGRAL OVERHEAT PROTECTION.
UZ
Z
U
EXTERNAL CAPACITOR AND INTEGRAL OVERHEAT PROTECTION.
U
Z
UZ
OTHER CIRCUITS IF FITTED :-
OTHER CIRCUITS IF FITTED :-
SS THERMISTOR
SS THERMISTOR
OVERHEAT PROTECTION.
K
K
OVERHEAT PROTECTION.
HH ANTICONDENSATION HEATER.
P
P
K
K
HH ANTICONDENSATION HEATER.
SPEED CONTROL WARNING.
L
SPEED CONTROL WARNING.
N
L
N
WHEN USED WITH A SPEED CONTROLLER
CHANGE CAPACITOR LEAD FROM TERMINAL U
REMOVE LINK U TO P, CONNECT CONTROLLER
TO CHANGE ROTATION
TO TERMINAL P, CONNECT CONTROLLER UZ TO
TO CHANGE ROTATION
UZ TO CENTRAL K, U TO U AND Z TO P AS
INTERCHANGE U1-U2 IN
SHOWN.
MOTOR TERMINAL BOX.
K K UZ U Z P
1 PHASE.
CD 1705
Z U UZ
FAN
Z
PN 502273
CONTROLLER
CD 1706
1 PHASE.
UZ
U
FAN
K
Z
U
OTHER CIRCUITS IF FITTED :-
OTHER CIRCUITS IF FITTED :-
SS THERMISTOR
SS THERMISTOR
OVERHEAT PROTECTION.
HH ANTICONDENSATION HEATER.
P
K
N
WHEN USED WITH A SPEED CONTROLLER
TO REMOTE
SPEED CONTROL WARNING.
WHEN USED WITH A SPEED CONTROLLER
CHANGE CAPACITOR LEAD FROM TERMINAL U
TO TERMINAL P. CONNECTIONS AS SHOWN.
TO CHANGE ROTATION
TO CHANGE ROTATION
INTERCHANGE U1-U2.
INTERCHANGE U1-U2 IN
( F22 DUCT BOX )
MOTOR TERMINAL BOX.
PN 502260
N
CONTACTOR COIL CIRCUIT.
CONNECTIONS SHOWN BELOW.
COIL CIRCUIT.
HH ANTICONDENSATION HEATER.
P
IF FITTED CONNECT TO
REMOVE LINK U TO P.
CONTACTOR
K
L
SPEED CONTROL WARNING.
L
CONTROLLER
EXTERNAL CAPACITOR
OVERHEAT PROTECTION.
K
Z U UZ
K K UZ U Z P
INTERNAL CAPACITOR AND REMOTE OVERHEAT PROTECTION.
UZ
CENTRAL K, U TO U AND Z TO P AS SHOWN.
INTERCHANGE U1-U2 IN
MOTOR TERMINAL BOX.
PN 502271
WHEN USED WITH A SPEED CONTROLLER
Z U UZ
K K UZ U Z P
CD 1708
FAN
K K UZ U Z P
( BT-CT MOTOR BOX ).
PN 502261
CONTROLLER
CD 1709
Z U UZ
FAN
CONTROLLER
WIRING DETAIL (SINGLE-PHASE DIRECT-DRIVE BT/CT TYPE MOTOR, STANDARD
TEMPERATURE L-TYPE FAN, HIGH TEMPERATURE L AND S-TYPE FANS)
1 PHASE
1 PHASE
INTEGRAL CAPACITOR
P
Z
U
UZ
INTEGRAL CAPACITOR
REMOTE OVERHEAT PROTECTOR
WITH OVERHEAT PROTECTOR
K
K
P
Z
U
UZ
N
L
K
K
L
N
TO CONTACTOR
COIL CIRCUIT
DIAGRAM A
PN 502331
PN 502332
1 PHASE
1 PHASE
DIAGRAM C
EXTERNAL CAPACITOR
EXTERNAL CAPACITOR
REMOTE OVERHEAT PROTECTOR
WITH OVERHEAT PROTECTOR
P
Z
U
UZ
K
P
K
Z
U
UZ
N
L
K
K
L
N
CD 1651
PN 502478
TO CONTACTOR
COIL CIRCUIT
CD 1652
PN 502479
DIAGRAM B
DIAGRAM D
WIRING DETAIL (SINGLE-PHASE DIRECT-DRIVE BT/CT TYPE MOTOR,
STANDARD TEMPERATURE S-TYPE FAN)
FIGURE 1
12
1 PHASE SUPPLY
1 PHASE SUPPLY
E
L
N
E
4
N
1
1
L
3
5
4
6
4
N
L
9
11
10
12
7
3
2
4
2
U2
MOTOR 1 LEADS
4
8
U1
4
U2
MOTOR 2 LEADS
U1
WARNING:- IT IS NECESSARY TO PROVIDE A 3 WIRE
SUPPLY FROM THE STARTER / CHANGE- OVER UNIT
TO THE ISOLATOR. A LINK IS NECESSARY
U1
U2
BETWEEN 4 AND N ON THE SUPPLY SIDE OF THE
APPROPRIATE TRIPLE POLE SWITCH ( OR RELAY )
MOTOR LEADS
FITTED WITHIN THE STARTER / CHANGE OVER UNIT.
SINGLE MOTOR UNITS
CD 1543
SUITABLE WOODS STARTER / CHANGE OVER UNIT EDC22
STANDBY MOTOR UNITS. CAPACITORS ON MOTORS.
P.N. 406605
CD1544
P.N.406606
WIRING DETAIL (SINGLE-PHASE BELT-DRIVE MOTOR WITH ISOLATOR FITTED)
INTEGRAL CAPACITOR REMOTE OVERHEAT PROTECTION
INTEGRAL CAPACITOR WITH OVERHEAT PROTECTION
USED WITH AUTO-TRANSFORMER
USED WITH AUTO-TRANSFORMER
OR ELECTRONIC CONTROLLERS
1 PHASE
P
Z
U
OR ELECTRONIC CONTROLLERS
1 PHASE
UZ
K
K
P
FAN
REMOVE LINK
REMOVE LINK
BETWEEN P & U
BETWEEN P & U
( SHOWN DOTTED )
( SHOWN DOTTED )
ZorP
U
N
UZ
L
L
U
K
K
FAN
REMOVE LINK
( SHOWN DOTTED )
( SHOWN DOTTED )
SUITABLE CONTROLLERS
MT1.- ME1.- AE1.CD 1655
N
L
N
P
BETWEEN P & U
UZ
CONTROLLER
OR ELECTRONIC CONTROLLERS
REMOVE LINK
U
L
USED WITH AUTO-TRANSFORMER
BETWEEN P & U
ZorP
N
UZ
DIAGRAM H
1 PHASE
UZ
FAN
EXTERNAL CAPACITOR REMOTE OVERHEAT PROTECTION
OR ELECTRONIC CONTROLLERS
Z
K
CD 1654
USED WITH AUTO-TRANSFORMER
P
U
MT1.- ME1.- AE1.-
EXTERNAL CAPACITOR WITH OVERHEAT PROTECTION
1 PHASE
K
SUITABLE CONTROLLERS
DIAGRAM G
CD 1653
UZ
COIL CIRCUIT
ZorP
N
MT1.- ME1.- AE1.-
U
TO CONTACTOR
CONTROLLER
SUITABLE CONTROLLERS
Z
L
CONTROLLER
SUITABLE CONTROLLERS
DIAGRAM J
CD 1656
UZ
K
K
FAN
COIL CIRCUIT
L
MT1.- ME1.- AE1.-
U
TO CONTACTOR
ZorP
N
Z
U
UZ
N
L
CONTROLLER
L
N
DIAGRAM K
WIRING DETAIL (SINGLE-PHASE DIRECT-DRIVE MOTOR WITH SPEED CONTROLLER)
13
FIGURE 2
3 PHASE
TO STARTER
MOTOR
A
U2
V2
W2
W1
U1
V1
CONNECT AS DIAGRAM 'A' FOR STAR/DELTA STARTING.
OR 'B' FOR DIRECT ON STARTING
HH ANTI CONDENSATION HEATERS
U2
V2
W2
OTHER
KK OVERHEAT CUTOUTS (MAX AMPS 2.5)
CIRCUITS
SS THERMISTOR (OPERATING RESISTANCE 3Ω)
IF FITTED
B
W1
U1
V1
V2
W2
P.N. 83771
3 PHASE
MOTOR
U2
A
W1
U1
V1
U2
V2
W2
W1
U1
V1
CONNECT AS DIAGRAM 'A' FOR VOLAGES ABOVE 340
OR 'B' FOR VOLTAGES UP TO 250.
HH ANTI CONDENSATION HEATERS
KK OVERHEAT CUTOUTS
OTHER
(MAX AMPS 2.5)
CIRCUITS
SS THERMISTOR (OPERATING
IF FITTED
RESISTANCE 3K Ω )
B
P.N. 83772
C.D. 1344/1
3 PHASE
MOTOR
1. LOW SPEED
U2 V2
W2
W1 U1
V1
CONNECT AS DIAGRAM 2 FOR HIGH SPEED OR 1 FOR LOW SPEED.
2. HIGH SPEED
U2
V2 W2
W1 U1
HH
ANTI CONDENSATION HEATERS
KK
OVERHEAT CUTOUTS ( MAX AMPS 2.5 )
CIRCUITS
OTHER
SS
THERMISTOR ( OPERATING RESISTANCE 3k Ω
IF FITTED
V1
P.N. 407941
C.D. 1559
WIRING DETAIL (THREE-PHASE DIRECT-DRIVE BT/CT TYPE MOTOR, STANDARD
TEMPERATURE L-TYPE FAN, HIGH TEMPERATURE L AND S-TYPE FANS)
FIGURE 3
14
STAR CONNECTED FAN WITH
AUTO-TRANSFORMER SPEED CONTROLLER
3 PHASE
3 PHASE
CONSTANT SPEED
U
W
V
( SINGLE VOLTAGE ) UNREGULATED
FAN
N
U1
U
V
W
L1
L2
L3
TRANSFORMER
CONTROLLER
V1
W1
U2
W2
3 PHASE
SUPPLY
CD 1683
3 PHASE
SUPPLY
SUITABLE CONTROLLER MT3.-
CD 1659
V2
DIAGRAM S
CONSTANT SPEED
3 PHASE
DELTA CONNECTED FAN WITH
AUTO-TRANSFORMER SPEED CONTROLLER
3 PHASE
U1
V1
W1
U2
W2
V2
FAN
( DUAL VOLTAGE SINGLE SPEED )
U1
V1
W1
U2 V2 W2
U
V
W
N
STAR
V>340
3 PHASE
SUPPLY
U1 V2
U
V
W
L1
L2
L3
TRANSFORMER
CONTROLLER
U
V1 W2 W1 U2
V
W
N
DELTA
V<260
3 PHASE
SUPPLY
3 PHASE
SUPPLY
CD 1660
DIAGRAM E
PN 502333
SUITABLE CONTROLLER MT3.-
DIAGRAM T
CONSTANT SPEED
3 PHASE
( TWO SPEED ) UNREGULATED
U1
V1
W1
U2
W2
V2
LOW
WIRING DETAIL
(THREE-PHASE DIRECT-DRIVE
MOTOR WITH TRANSFORMER TYPE
SPEED CONTROLLER)
3 PHASE
SUPPLY
U1
3 PHASE
V1
W1
U2
W2
V2
HIGH
SUPPLY
PN 502334
WIRING DETAIL
(THREE-PHASE DIRECT-DRIVE
BT/CT TYPE MOTOR, STANDARD
TEMPERATURE S-TYPE FAN)
DELTA CONNECTED FAN FOR FULL SPEED
3 PHASE
WITH DELTA-STAR SPEED CHANGE SWITCH
DELTA CONNECTED FAN.
( DIAGRAM F WITH
DIAGRAM F
U1
V1
W1
U2
W2
V2
U1
V1
W1
U2
W2
V2
LINKS OMITTED )
L1
3 PHASE
SUPPLY
CD 1661
L2
L3
CHANGEOVER SWITCH
SUITABLE CHANGEOVER SWITCH MDS3.-
DIAGRAM X
WIRING DETAIL (THREE-PHASE
DIRECT-DRIVE MOTOR WITH
CHANGE-OVER SWITCH)
15
FIGURE 4
3 PHASE SUPPLY
3 PHASE SUPPLY
E
L1
L2
1
3
2
4
L1
E
L3
L2
3
5
7
9
11
2
4
6
8
10
12
V
W
MOTOR 1 LEADS
3 PHASE SUPPLY
1
2
5
4
2U
L1
MOTOR 2 LEADS
P.N.406608
HIGH SPEED
L2
7
6
W
3 PHASE SUPPLY
LOW SPEED
L3
3
V
STANDBY MOTOR UNITS.
CD1546
HIGH SPEED
L2
U
SUITABLE WOODS STARTER / CHNGE OVER UNITS EDC2 OR EDC5
P.N. 406607
L1
L3
1
W
V
SINGLE MOTOR UNITS
E
L2
6
MOTOR LEADS
CD 1545
L1
5
U
U
L3
9
8
L3
L1
E
LOW SPEED
L2
L3
L1
L2
L3
11
10
1
3
5
7
9
11
2
4
6
8
10
12
12
2V
2W
1U
1V
1W
MOTOR LEADS
WARNING :- CONTROL GEAR MUST SUIT THE
POLE CHANGE ( TAPPED WOUND, DAHLANDER OR PAM )
WINDINGS PROVIDED.
SUITABLE WOODS STARTER / CHANGE OVER UNIT EDC19
2U
2V
2W
1U
1V
MOTOR LEADS (TWO WINDING TYPE)
1W
SUITABLE WOODS STARTER / CHNGE OVER UNIT EDC22
TWO SPEED MOTOR UNITS.
TWO SPEED MOTOR UNITS. POLE CHANGING TYPE.
CD1550
P.N.407356
TWO WINDING TYPE.
P.N.406609
CD1547
WIRING DETAIL (THREE-PHASE MOTOR, WITH ISOLATOR FITTED)
DELTA CONNECTED FAN WITH
STAR CONNECTED FAN WITH
3 PHASE
3 PHASE
ELECTRONIC SPEED CONTROLLER
U
CONTROLLER
U
V
V
W
W
N
N
DELTA CONNECTED FAN.
FAN
( DIAGRAM F WITH
STAR CONNECTED
L1
L2
L3
CONTROLLER
V1
W1
U2
W2
V2
L1
L2
L3
U1
V1
W1
U2
W2
V2
3 PHASE
NEUTRAL SUPPLY
CD 1657
U1
LINKS OMITTED )
3 PHASE PLUS
SUITABLE CONTROLLER ME3.-
ELECTRONIC SPEED CONTROLLER
SUPPLY
SUITABLE CONTROLLER ME3.-D
DIAGRAM P
CD 1658
DIAGRAM R
WIRING DETAIL (THREE-PHASE DIRECT-DRIVE MOTOR WITH ELECTRONIC
TYPE SPEED CONTROLLER)
FIGURE 5
16
IMPORTANT NOTE:
THIS DRAWING SHOWS THE CORRECT ASSEMBLY
SEQUENCE OF TERMINAL PARTS.
IT IS ESSENTIAL THAT NO LOCKWASHERS OR NUTS
ARE PLACED BETWEEN THE MOTOR LEAD EYELET,
CONNECTING LINK OR CUSTOMERS SUPPLY LEAD
EYELET (WHEN FITTED).
TERMINAL SCREW LOCKNUT
TERMINAL SCREW WASHER
TERMINAL SCREW LOCKWASHER
BRASS WASHER (FITTED WITH
CUSTOMERS SUPPLY LEAD
CONNECTING LINKS)
EYELET (WHEN FITTED)
PACKING WASHERS
CONNECTING LINKS (WHEN FITTED).
( OMIT FROM ASSEMBLY
WHERE STUD THREAD CONTINUES
DO NOT USE COPPER WIRE LINKS
TO TERMINAL BLOCK SURFACE )
IDENTIFICATION TAG
MOTOR LEAD EYELET
TERMINAL BLOCK
TERMINAL SCREW
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
FIXING ARRANGEMENT OF TERMINAL BLOCK
17
FIGURE 6
18
4 5 7
10.00
SCREW LOCKED AGAINST VIBRATION
ON SPECIFIC TABLE NYLON PATCH WILL HOLD
APPLICATIONS THESE SHOULD BE AS SHOWN
INTO MATERIAL FOR SHAFT
LOCKING SCREW & HEAVY WASHER
TYPE 4
OR PLASTIC PLEASE SEEK ADVICE WHERE NECESSARY
INTO CONSIDERATION IF IT IS HOLLOW,VERY DUCTILE
9) THE MATERIAL BEING CLAMPED IS ONLY TO BE TAKEN
IS 4 Nm
8) THE FIQURE TO BE USED ON AEG CAPACITOR STUDS
FIQURE OF THE TWO.
7) WHEN USING TWO MATERIALS ALWAYS USE THE LOWEST
IMPORTANT FACTORS FOR TORQUE.
SUPPLIED. THE SCREW OR BASE MATERIAL ARE THE
TORQUE FIGURES OTHER THAN HOW THE TORQUE IS
6) THE HEAD OF THE SCREW MAKES NO DIFFERENCE TO
OVERTIGHTENING CAN OCCUR.
5) NUTS ARE TO BE TIGHTENED ONLY ONCE SO NO
TO Å} 5%
4) THERE IS A TOLERANCE ON TORQUE WRENCHES UP
lbf-ft= Nm x 0.7375
IS GIVEN FOR lbf-ft EQUIPMENT.
3) ALL VALUES ARE IN Nm THE CONVERSION FACTOR
WILL DECREASE CURING TIME IF NECESSARY.
COMPOUND, PRIOR TREATMENT OF LOCTITE ACTIVATOR T
0.4000
1.5000
3.5000
7.0000
M2
M3
M4
M5
245.00
335.00
475.00
M16
M18
M20
2225.0
3700.0
4565.0
6
9
M3
M4
---------
M33
M36
---------
M42
M45
-----
-----
M30
M39
-----
-----
-----
-----
M27
M24
M22
M20
---------
M16
35
M12
M18
23
M10
-----
21
M8
M14
12
M6
11.5
5
M2
M5
-----
PRESTICERT
M1.6
SIZE
FIXING
5690.0
M39
M45
M42
2855.0
M33
M36
1200.0
1640.0
M27
820.00
M30
M24
645.00
155.00
M22
100.00
M14
55.000
28.000
M12
M10
M8
12.000
0.2000
M1.6
M6
STEEL 8.8
1
FIXING
SIZE
10
2
2840.0
2285.0
1850.0
1425.0
1115.0
820.00
600.00
410.00
325.00
240.00
170.00
120.00
80.000
50.000
30.000
15.000
6.0000
3.5000
2.0000
0.8000
0.2000
INCLUDES T BOLTS
4
M16
M20
D160/180
TABLE 7
ALUMINIUM
266
136
55
55
55
55
16
TORQUE Nm
OF 1 x SCREW DIAMETER
ENSURE MINIMUM THREAD ENGAGEMENT
M12
M12
D132
D100
D112
M12
M8
M12
D90
D63/71
D80
SIZE
PAD HOLE
( NOT WORLD SERIES )
196
100
40
40
40
40
-
TORQUE Nm
CAST IRON
PAD MOUNTED BROOK HANSEN MOTORS ONLY
INVENSYS
AS SPECIFIED FOR GRADE 8.8 FIXINGS.
BE TIGHTENED TO TORQUE VALUE
BINX NUTS MARKED GRADE 8 SHOULD
FIXINGS (ALL SIZES)
VALUE SPECIFIED FOR MILD STEEL
TABLE 9
2840.0
2285.0
1850.0
1425.0
1115.0
820.00
600.00
410.00
325.00
240.00
170.00
120.00
80.000
50.000
30.000
15.000
6.0000
3.5000
2.0000
0.8000
0.2000
0.1000
STEEL INTO
TAPPED M.S
AND SHOULD BE TIGHTENED TO TORQUE
BINX NUTS GRADE 6 ARE UNMARKED
BINX NUTS
SIZE
FRAME
--------
--------
--------
--------
--------
--------
--------
515.00
--------
300.00
--------
152.0
--------
65.0
35.0
18.0
8.0
6.0
--------
--------
--------
0.1000
NOT 8.8 GRADE
A2,A4 PROP 70
--------
M.S.
FIXINGS
3
STAINLESS
STEEL
5
8
6
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
-----
15.00
10.00
6.00
3.00
1.00
-----
-----
NUTSERT
7
SCREW INTO
CAST ALUM
WHICH ARE APPLICABLE TO THE DIAGRAM SHOWN.
-----
-----
-----
-----
-----
-----
-----
420.00
300.00
200.00
-----
135.00
85.00
50.00
28.00
14.00
7.00
-----
-----
-----
-----
-----
ALSO SEE MOTOR TABLE BELOW
TO SHOW THE SCREW TYPES AND TAPPED MATERIALS
THE NUMBERS SHOWN THUS* IN THE BOXES ARE
NOTE!
SEEK ADVICE FROM TECHNICAL SUPPORT.
FIXINGS FOR ANY SPECIAL APPLICATION
SHOULD NEVER BE CRUSHED BY THE
SHOULD BE SUPPLIED. THE RUBBER
SPACER TUBE OR METAL INSERT
FLEXIBLE MOUNT IS USED A METAL
WHERE A RUBBER GROMMET OR A
RUBBER A/V
FORMING PROCESS
HIGH TORQUE TO START THE THREAD
NOTE THAT TAPTITE SCREWS MAY NEED A
------
------
------
------
------
------
------
310.00
245.00
178.00
------
95.00
60.00
36.00
20.00
10.00
5.00
------
------
------
------
------
STEEL INTO
EXTRUDED AL
DRAWING OF TORQUE SETTINGS FOR FIXINGS
FOR SPECIAL APPLICATIONS OR QUERIES ASK FOR ADVICE.
WITH NUT & WASHER HOLDING THEM IN PLACE.
EXCEPT STAINLESS STEEL WHICH IS TO HAVE LOCTITE 242
2) ALL JOINTS ARE TO BE DRY
OTHERWISE ON SPECIFIC ASSEMBLY DRAWINGS.
1) THESE FIGURES SHOWN APPLY UNLESS SHOWN
4 5 9 7
OF A PLATE ON A STUD.
STUDDING SCREWED INTO MATERIAL
TUFLOK/ESLOK
SCREW
SCREWED INTO TAPPED MATERIAL.
SCREW WITH WASHER HOLDING PLATE
TYPE 3
9
LONGLOC
10
TYPE 6
PVC DUCT
SIZE
M8
TWO NUTS & WASHERS EITHER SIDE
1 2 3
STAINLESS STEEL
FIXING
OF PVC DUCTS.
TIGHTENING OF STUDS ON OUTSIDE
TYPE 8
WELDED NUT SEE MILD STEEL FIGURES
INTO NUTSERT OR PRESTINCERT FOR A
SCREW & WASHER THROUGH PLATE
TYPE 7
10
TYPE 5
NOTE!
6
HEX HD SCREW WITH NUT CLAMPING TWO HUB HALVES TOGETHER
THE RELATIVE ASSEY DRAWINGS
1.5 D
FOR JM AND CLIMAFANS FIGURES FOR ASSY & RE ASSY ARE ON
TYPE 2
ON DRAWING 133344
ALL FIGURES FOR CLAMP PLATES APPEAR
HOLDING TWO PLATES TOGETHER.
PLAIN SCREW AND NUT WITH WASHERS
TYPE 1
1 2 3
1.5 D
FIGURE
D280M,D315S
D250M,D280S
D225M,D250S,
D200L,D225S
D180M,D180L
D315 ABB
M24
M20
M16
M12
D132S,D132M
D160M,D160L
M10
M8
M6
THREAD SIZE
D112M
F22,D100L &
D90S & D90L
CT5,CT9 & D80
SHAFT END FIXINGS
THE FIGURES FOR TAPPED CAST IRON.
BT4,5 & 9
D315M
TORQUE FIGURES.
ASSEMBLY DRG ONLY FOR CORRECT
FOR THIS APPLICATION SEE SPECIFIC
BLADE INTO HUB.
2
STRENGTH OF CAST IRON SO USE HALF
SPECIAL ARRANGEMENT OF LOCKING IMPELLER
TYPE 9
------
------
------
------
------
------
------
450.000
------
120.000
85.000
60.000
40.000
25.000
15.000
7.500
3.000
1.750
1.000
0.400
0.100
0.050
ALSO SEE MOTOR TABLE BELOW
INTO
CAST IRON
9
STAINLESS
STEEL
295.000
180.000
120.000
050.000
030.000
015.000
006.000
TORQUE VALUE
---------
---------
---------
---------
---------
---------
---------
580.0
---------
335.0
---------
170.0
---------
73.0
39.0
20.5
9.0
7.0
---------
---------
---------
---------
A2,A4 PROP 80
NOTE BRASS FIXINGS HAVE HALF THE SHEAR
MOTOR SIZE
TABLE 10
------
------
------
------
------
------
------
------
------
------
------
------
------
95.000
55.000
25.000
10.000
6.000
3.000
1.400
0.400
------
TAPTITE
SELF
FORMING
THE TORQUE WRENCHES SHOULD BE SET TO QCP/002 THAT IS Å}5%
8
We Bring Air to Life
Fläkt Woods Group provides a full range of products and solutions
for buildings ventilation, air treatment and industrial air movement
Sales Office
Sales Office
Fläkt Woods Ltd
Unit 6240, Bishops Court
Solihull Parkway
Birmingham
B37 7YB
Tel:
+44 (0)121 717 4680
Fax:
+44 (0)121 717 4699
Fläkt Woods Ltd
First Floor, Entrance 6,
Crossford Court
Dane Road, Sale, Cheshire
M33 7BZ
Tel:
+44 (0)161 969 1992
Fax:
+44 (0)161 969 4612
Head Office
Fläkt Woods Ltd
Axial Way
Colchester
Essex
C04 5ZD
Tel:
+44 (0)1206 222 555
Fax:
+44 (0)1206 222 777
Sales Offices available World Wide - See our website for details
www.flaktwoods.com/uk
Due to a policy of continuous development and improvement the right is reserved to supply products which may
differ from those illustrated and described in this publication. Certified dimensions will be supplied on request
on receipt of order.
Copyright, Fläkt Woods Ltd, 2006.
All rights reserved. No part of this publication may be produced in any material form by any means without
the written permission of Fläkt Woods Ltd. Any unauthorised use of this data may result in legal proceedings.
FWDD/0606/PN416421