Airflow QT 150VS User manual

Installation and Operating Instructions
QuietAir 150mm Axial Fan
MODEL:QT 150VS Variable Speed Fan (50 - 260m
3
/hr)
With Adjustable Timer control
 Variable Speed with timer
 Low Energy
 Quiet
 Long Life
 Extra Safe
80000309 Issue 1 02/15

CONTENTS
Chapter 1. GENERAL INSTALLATION- AND OPERATION INSTRUCTIONS
1.0
Important Information
1.1
Warnings
1.2
Safety Instructions
1.3
Warranty claims Disclaimer
1.4
Regulations - Guidelines
1.5
Transport
1.6
Acceptance of delivery
1.7
Storage
1.8
Operational area
1.9
Performance data
1.10
Noise data
Chapter 2. GENERAL NOTES
2.0
Qualification of staff
2.1
Touch protection
2.2
Motor protection
2.3
Start-up performance
Chapter 3. SPECIFICATIONS / DIMENSIONS M1/150 0-10V
3.0
Specifications
3.1
Product lifetime
3.2
Accessories
3.3
Dimensions
Chapter 4. FUNCTION
4.0
Function description
Chapter 5. CLEANING / DEINSTALLATION
5.0
Cleaning
5.1
Cover Dismantling
Chapter 6. INSTALLATION
6.0
Scope of delivery / Mechanical installation
6.1
Preparation for wall mounting
6.2
Installation
6.3
Electrical installation
6.4
Cable connection
6.5
Mounting
6.6
Operation
Chapter 7. INSTALLER FUNCTION
7.0
Function description QuietAir 150 VS
Chapter 8. CARE AND MAINTENANCE
8.0
Care and maintenance
8.1
Troubleshooting
8.2
Decommissioning and disposal

CHAPTER 1
GENERAL SAFETY
INSTRUCTIONS
1.0
Important information
To ensure a proper function and your own safety manual should be thoroughly read
and observed.
This document is part of the product and has to be available and durable at all times
to ensure a safe operation of the fan. All equipment-related safety regulations must
be adhered to.
1.1
Warnings
The adjacent symbols are safety warnings. To avoid any risk of
injury and dangerous situations, all safety regulations (symbols)
in this document must be strictly observed.
1.2
Safety Instructions
For use, connection and operation apply special regulations. If in
doubt, contact manufacturer for advice. Other information is relevant to
standards and legislative texts.
For all work involving operation of the fan, general applicable
safety and accident prevention regulations must be observed.
All electrical work and commissioning must be carried out
only by authorized and qualified electricians.
Maintenance and installation work must be carried out only by
competent personnel.
Before cleaning, maintenance and installation work or before
opening the terminal compartment following points must be
observed:
- Disconnect the fan from power supply (all-pole) and secure
against restarting!
- Wait till the work stoppage of rotating parts!
- After work stoppage of rotating parts, waiting period of 3
min. has to be observed; dangerous voltages can occur by
internal capacitors even after disconnection from the network!
All equipment-related safety regulations must be observed!
If necessary, further country-specific regulations must be
complied with!
Contact protection (or Protection against accidental contact)
must be insured according to DIN EN 13857 (see Chapter 2.1)!
Contact with rotating parts must be avoided.
DANGER
WARNING
CAUTION
DANGER

Ensure a uniform inflow and free outlet!
During operation of a fire place in ventilated room, sufficient
air supply must be provided in all operating conditions (please
contact chimney sweep).
Valid local regulations and laws must be observed!
QuietAir 150 VS is not to be used by children and persons with
reduced physical, mental or sensory capacities, without
proper practical experience or expertise, unless they are
controlled or instructed on the product operation by the
person(s) responsible for their safety. Children are not allowed
to play with the device. Cleaning and maintenance must not be
carried out by children without supervision.
1.3
Warranty claims –Disclaimer
All versions of this manual must be observed; otherwise the guarantee will be
annulled. The same applies to liability claims against Airflow Developments. Use of
accessories which are not admissible and are not provided by Airflow Developments
- is prohibited. Any potential damages are not subject of the guarantee. Changes
and modifications to the product are not allowed and will result in a loss of conformity
- in such case any warranty and liability shall be excluded.
1.4
Regulations –Guidelines
Properly installed and used for its intended purpose, product complies with the valid
regulations and CE-guidelines at the time of its production.
1.5
Transport
The fan is factory-packed so that it is protected against normal transport loads. Run
the transport carefully. It is recommended to leave the fan in the 
original package.
1.6
Acceptance of delivery
A visual inspection upon delivery should be performed including damage and type
accuracy check. In the event of there being damage, the necessary notification of
claim immediately has to be reported to the carrier. Any delay in complaint will result
in a loss of benefit entitlement.
1.7
Storage
When storing for a long period of time, avoid harmful impacts by following next steps:
protect the motor by dry, air and dustproof package (plastic bags with drying agent
and moisture indicator). The product should be stored in a vibration-free and water-
protected premise at a constant temperature ranging from -20C up to + 40C.
In compliance to Chapter 8, when storing a product for more than three months
(motor standstill), maintenance must be determined before commissioning. In case
of transshipment (especially over longer distances: e.g. sea), the packaging has to
be checked whether it is suitable for transport and route. Damages caused by
improper transportation, storage or installation are not covered by the warranty.

1.8
Operational area
- Appropriate use:
QuietAir 150 fans are used to convey normal or slightly dusty (particles size < 10
µm), little aggressive and humid air, into moderate climate and suitable area of its
performance curve (see Airflow Developments sales documents / Internet).
Operation permitted only for fixed installation within buildings. Maximum permitted
medium and ambient temperature is 40ºC. QuietAir 150 fans conform to enclosure
protection IP45, protection class II and according to VDE0100 part 701 shall be
conformed to install in area 1 of humid areas.
- Rationally foreseeable misuse
The fans are not suitable for use under difficult conditions such as high humidity,
aggressive media, longer downtimes, strong pollution, and excessive workload due
to climatic, technical or electronic influences. The same applies for the mobile use of
the fans (cars, aircrafts, ships, etc.). To perform under these conditions is only
possible with release approval by Airflow Developments, in case of standard version
it is not applicable.
- Prohibited use
Misuse of the device is not allowed! Solids or solid impurities > 10 µm in transporting
medium as well as liquids are not allowed. Transporting medium which are
aggressive against the fan material as well as abrasive media is not allowed. Usage
of the fan in the explosive environment is prohibited.
1.9
Performance data
The device type plate is binding for the electrical data; this must be conformed to the
local supply network. On the test stand fan performance was complied with DIN EN
ISO 5801.
1.10
Noise data
The noise data which relate to distances is valid under free field conditions.
After installation the sound pressure level can vary significantly from the catalog
values since it strongly depends on the installation conditions, for instance the
absorption capacity of the room, the room size etc.
CHAPTER 2
GENERAL NOTES
2.0
Qualification of staff
Maintenance and installation work must be carried out only by an approved
electrician.
QuietAir 150 fans should not to be used by children and persons with reduced
physical, mental or sensory capacities, without proper practical experience or
expertise, unless they are controlled or instructed on the product operation by the
person(s) responsible for their safety. Children are not allowed to play with the
device. Cleaning and maintenance must not be carried out by children without
supervision.
2.1
Touch protection
- QuietAir 150 fans are supplied with a standard suction side protective grid.
Depending on the installation conditions protection against accidental contact on the
discharge side may also be required. Appropriate protective grids are available as an
accessory.
- According to the installation method (for instance installation in ventilation canals or
covered aggregates) fans are already protected and in such cases they do not need
a protective grid. It should be noted that the operator is responsible for compliance
with the current requirements and is liable for accidents.
DANGER

2.2
Motor protection
QuietAir 150 fans use an energy-saving maintenance-free EC Motor with high
efficiency. The motor is equipped with a thermal contact, wired in series, which
automatically switching on/off after cooling.
If the motor is blocked than attempt to restart it every 3 seconds.
2.3
Start-up performance

pulses to the rotor in order to reach this position. This may take a few seconds. After
switching off the fan, switch-on inhibit activates the fan for 15 sec. to protect the
motor from rapid on/off switching.
CHAPTER 3
SPECIFICATIONS/
DIMENSIONS
M1/150 0-10 V
3.0
Specifications
Impeller Ø
137
Electrical supply
NYM-0 2 x1,5mm2
Alternating current

Control wire
LiYY 3 x 0,34mm2
Relay

ind, µ
Degree of protection
IP 45
(jetwater-proof)
Voltage/frequency
230 V, 50 Hz
Protection class
II
Power input (W)
9
Weight approx. kg
1,2
Ampacity (mA)
80
Rotational speed
1900/980
Flow volume (m3/h)
max. 260
Follow-up [min.]
6
3.1
Product lifetime
This unit is designed for a product life of at least 40.0000 hrs in Speed 1 operation
with maximum power in the maximum permissible ambient temperature.
3.2
Accessories
9041569
3 Amp Stepless Speed Controller
Order Nr.

3.3
Dimensions
CHAPTER 4
FUNCTION
4.0
Function description
All of the following information and instructions are intended for use by authorized
electricians. All times may vary slightly due to component tolerances and ambient
temperatures.
QuietAir QT150 VS can be continuously operated by e.g. connecting an external 3-
Amp Stepless Speed Controller (accessory) or 0-10 V set point generator.
1. Speed setting
The adjustment of the speed can be limited internally via internal potentiometer
settings. In delivery condition, the full scope of the control range becomes available.
2. Scaling
Scaling can be set through the internal potentiometer, i.e. it will set the assignment
set point input (0-10 V) for speed control (20-100%).
No change must in principle be carried out in default activation with an external
potentiometer. Change can be made e.g. when connecting a sensor sense, when a
smaller control range is to be used.
3. Relay output
When the fan is running regardless of the speed an operational message is
displayed. The relay output is, for example, for connecting an external flap.

CHAPTER 5
CLEANING /
DEINSTALLATION
5.0
Cleaning
Safety instructions listed in Chapter 1.2 must be observed!
- Before cleaning always ensure that the fan unit is isolated from the power supply
and secured against restarting!
- Clean facade, protective guard and visible housing parts (the external housing of
the fan) with a damp cloth!
- Do not use any aggressive, paint solvent cleaning agents!
- High pressure cleaner or spray water is not permitted!
5.1
Cover Dismantling
1. Isolate the fan unit from the power supply and secured against restarting.
2. Pull the side pieces (cover plates) of the upper part of the housing outwards (see
fig 1/fig 2) to unlatch it and upwards until the cover plate is opened.
DANGER
DANGER
Fig 1
Fig 2

All of the following information and instructions are only for
authorized electricians.
CHAPTER 6
INSTALLATION
6.0
Scope of delivery / Mechanical Installation
A visual inspection upon delivery should be performed including a check to ensure
all components are present. Take the delivery unit out of the box immediately before
installation in order to avoid possible damage and contamination during the transport
as well as at the construction site.
Scope of delivery:
1. Facade
2. Terminal compartment
cover incl. 4x fastening screws
3. Control board
4. Plastic housing with impeller
5. Guide vane,with limited
mounting depth removable
6. Backdraft shutter,
removable
7. Cable support sleeve x 2
8. Mounting kit
2x screws with dowels
for a wall mounting
9. Foam strips
6.1
Preparation for wall mounting
Safety instructions listed in Chapter 1.2 must be observed!
The fan is supplied as a standard complete unit, which is delivered ready for
connection. The installation and set-up of the fan should be performed only after final
cleaning to avoid damage and contamination of the ventilation unit.
After unpacking and before installation the following points must be checked:
- if any transport damage is noticed,
- broken or bent parts
- free running of the impeller
6.2
Installation
The QuietAir 150 is designed for direct wall mounting. The housing must not be
deformed or warped during the installation. Ensure to choose a flat location for
mounting. Fans can be heavy and are sometimes unwieldy. Proper precautions must
be taken, to ensure the assembly is well supported and stable before lifting into
position. Fans should be mounted only on sufficiently strong and stable nature using
appropriate fasteners. Ensure a sufficient additional flow! If necessary, read an
instruction from DIN 1946-6.
1. Cable outlet in the wall
- Position of the cable outlet in the dark area is variable (fig 4).
- Clearance to the pipe centre depending on the cable outlet r = 83 mm (at a variable
position from 0 up to 360).
- For an easy assembly, recommended to place outlet as shown (90rotatable). The
optimal position is at 45when the cable outlet placed directly at the position of the
cable support sleeve.
- QuietAir 150 Pipe inner diameter = 150 mm
- Clearance to room corners: at least 130 mm from the pipe centre
- During the wiring the side recess for the cable entry in housing (fig 7, Pos.1) must
be broken out.
DANGER
Fig 3

2. Boreholes
Position the housing, then mark and drill the holes and mount it with at least two
fastening screws and wall plugs.
3. Backdraft shutter and guide vane
- If required backdraft shutter (scope of delivery) can be installed behind the guide
vane (fig 6).
- During the housing installation, the guide vane must be mounted vertically.
- Before final assembly stick on the foam strips (scope of delivery) (fig.6).
Fig 4
Fig 5
Fig 6
Fig 7

6.3
Electrical installation/Commissioning
Safety instructions listed in Chapter 1.2 must be observed
- All electrical installation to be carried out by an approved electrician in
accordance with presented manual and wiring diagrams.
- The relevant standards, safety regulations (for instance DIN VDE 0100)
and technical connection regulations of the energy supply company
must be observed!
- An all-pole mains switch/isolation switch, with at least a 3 mm contact
opening (VDE 0700 T1 7.12.2 / EN 60335-1) is mandatory by law!
- Network configuration, voltage and frequency of the power source
must match the information on the rating plate.
6.4
Cable connection 230 V / control line (10 V=)
On the circuit board there are areas 230 V~ and 10 V= decoupled together. In order
to maintain the galvanic isolation several things must be observed with regards to
connection and cable wiring within the housing.
1. The cable entry of NYM (230 V~) always takes place through the cable entry at
the bottom left (fig 8).
2. The cable entry of LiYY (10 V=) control line always takes place through the cable
entry on the top right (fig 8).
The connection of the relay contacts must be according to the following
selection criteria:
- 230 V-consumers are introduced via input cable grommet
- Low voltage consumers are introduced via the control line grommet
The relay terminal, combined with supply or control line, must take place in
one wire. Insertion of 2 wires in the grommet is not allowed.
In the wiring make sure that wires are placed not on the board, but on the edge
along the housing (fig 9/10).
For LiYY control line a maximum cable length permitted is 30m. A shield is not
necessary.
- Prepunch grommet with a round tool or pierce directly with the supply line
(fig 7, Pos. 3)
- Remove cable sheath to a length of 135 mm. Strip back each wire's
insulation about 8 mm.
- Carefully slide cable through the grommet.
- The wiring diagram (SS-1083) should always be used to ensure proper wire
placement.
- Check sealing of the connection cables and cable wires clamp.
- If mounted at the inlet spout the sheathed cable does not enclose evenly,
the spout must be additionally sealed with silicone. Otherwise, the IP
protection will be compromised.
- The connection cable should be positioned in such a way that in case of
water entering, water may not penetrate along the cable. Cables must be
laid in such a way that they do not run over sharp edges.
- Check the fan according to the intended use.
- Supply voltage has to match the name plate data.
- Ensure secure mounting and proper electrical installation of the device.
- Check the freewheeling of the impeller.
- All parts of the fan, especially screws and protective grid must be checked
for tightness. Do not lose included screws!
- Ensure that the necessary protective guard is installed, as a device
cannot be operated without it.
- During the trial run the fan is checked for vibrations and noise.
- Power consumption has to match the name plate data.
DANGER
DANGER

- Cable entry NYM-O (on the bottom
left)
- Cable entry LiYY (on the top right)
Rotated mounting positions must
be observed!
- Relay with 230V-consumers
- Connection combined with supply cable
through NYM-O 4×1.5mm2
- Relays with low voltage consumers
- Connection combined with control
line through LiYY 5×0,34mm2
Wire transfer not over the board!
1. Insert and tighten the terminal
compartment cover on plastic housing
2. Fit and snap the façade connection
Control wire LiYY
Supply/Supply line NYM-O
Relay
Relay
Fig 8
Fig 9
Fig 10
Fig 11

6.5
Mounting
6.6
Operation
Safety instructions listed in Chapter 1.2 must be observed!
To guarantee the proper function of the fan, the following need to be checked
regularly:
- Appearance of dust or dirt in the housing (on the motor and impeller)
- Free running of the impeller
- Appearance of excessive vibration and noise
In case of problems with one of the points listed above maintenance should be
carried out according to the instructions in Chapter 8.
DANGER

CHAPTER 7
INSTALLER
FUNCTION
7.0
Function description QuietAir QT150 VS
QuietAir QT150 VS can be continuously operated by e.g. connecting a 3 Amp-
Stepless Speed Controller (accessory) or 0-10 V set point generator.
The control board is on terminal 7 where a potentiometer supply of +10 V is
available. Alternatively, a set point can be set via an external control voltage of the
category "SELV" safety extra-low voltage at the terminals 5 (GND) and 6 (+ 0-10V).
If the Control voltage <0.5 VDC, the fan will completely switch off.
1. Terminal assignment
- Terminal N / L
Terminal N and L have to be connected to the 230V operating voltage.
- Terminal 5
Terminal 1 activates the low stage.
- Terminal 6
Terminal 2 activates the high stage.
- Terminal 7
+10 VDC
- Terminal 3, 4
The last specification conducts independently with or without timer.
By simultaneous operation of two stages - conducts stage 2.
A change of the DIP switch settings must be carried out only by authorized
and qualified electricians. The device must be disconnected (all-pole) from
power supply. A change of the DIP switch is allowed only after switching off
mains supply.
2. Activation of the timer function
Timer function (turn-on delay, post-run time) can be activated at the requested stage
or deactivated via 7 and 8 DIP switches.
DANGER
Fig 14

2.1
Speed setting / adjustment
By using a potentiometer P3 and P4, the adjustment range of the speed is limited
internally.
P3 = minimum speed, supply turn to left stop = 20%
P4 = maximum speeed, supply turn to right stop = 100%
As a result of factory settings the entire range of the control spectrum is available.
If potentiometer P4 is set lower than potentiometer P3, the fan runs constantly with
the value set at potentiometer P3.
2.2
Scaling
The scaling can be adjusted via the potentiometer P1 and P2, ie. it will set the
allocation setpoint input (0-10 V=) for speed control (20-100%).
Implication:
With a setpoint of 1V control with 20% of the speed starts processing work, wherein
the setpoint of 10 V, the controller will reach the maximum value of 100%. Thus, in
the delivery state, complete bandwidth set is available for both - setpoint input and
speed control. This corresponds to 0 V - 10 V at the setpoint input of motor control of
20-100%.
In a standard control in principle no amendment has to be done with a potentiometer.
An amendment can take place, for example, when connecting a sensor sense when
a lower control range is used.
Example:
A temperature sensor has a measuring range of 0-40°C and supplies 0-10 V. The
fan is to be controlled in a range of 20°C to 34°C (fig 15). Accordingly, a control
range produces 5-8V. Potentiometer 1 is set to 5V, potentiometers 2 to 8V. (fig 16)
shows the resulting fan control.
Fig 15
Fig 16
TFT Measuring range 0-40⁰C
Analogue output 0-10V
Fan control
Scaling range in V

At a scaling value on potentiometer 1, which exceeds the value of potentiometer 2,
the fan runs at the minimum speed.
Note:
Minimum air operation and minimum rate of air can be achieved by electronic
temperature sensors, such as the ETR-Type (see accessories).
4. Relay output
An operating message will be displayed on terminals 3 and 4. Regardless of the fan
speed, the relay contact is closed, as soon as the fan continues to run.

5.
Schematic overview for QuietAir QT150 VS
Fig 17

CHAPTER 8
CARE AND
MAINTENANCE
8.0
Care and maintenance
Safety instructions listed in Chapter 1.2 must be observed!
- Prior to all work always ensure that the fan unit is isolated from the
power supply and secured against restarting!
- In principle the devices are maintenance-free; the unit is not user
serviceable. Nevertheless all necessary maintenance work must be carried
out by qualified electricians!
- Excessive deposits of dirt, dust, fats etc. on the impeller, motor, protective
grids and especially between housing and impeller are not allowed; as it can
lead to heavy imbalance in the impeller, overheat the motor or even block
the impeller. In those instances the device has to be cleaned.
- In case of no longer use the unit must be serviced before operation.
Should be examined:
Secure mounting of the fan / replace if in doubt
Remove contaminant deposits
Mechanical damage, shut down the device, replace damage parts
Firm seating of bolt connections, loosen screws
Housing quality (cracks, brittleness of the plastic)
Overrunning of the impeller, the impeller doesn`t run freely, note
possible causes of failure in Chapter 8.1
Bearing noise
Vibrations see Chapter 8.1
Power consumption according to the specifications on the type plate 
see Chapter 8.1
8.1
Troubleshooting
Safety instructions listed in Chapter 1.2 must be observed!
Attention: If the impeller or motor is blocked use 3 seconds for the restart
interval.
Error
Causes
Solution
Fan doesn`t start
- no voltage
Mains voltage check
Check connection according to
wiring diagram
- no set point > 0,5V
Clear blockage, clean or replace
- blocked impeller
Contact Airflow technical support
- blocked motor
Contact Airflow technical support
- switched off motor
Switch on protection (15sec.)
await
Fuse releases
- inter-turn short-circuits
in motor
Contact Airflow technical support
- damaged cable or
connector
Replace parts, if necessary
replace motor (Contact Aifflow
technical support)
- connected incorrectly
Check the connection, modify
Vibrations
- contamination
Clean
- mounting vibrancy
Check mounting, repair
Abnormal noises
- grinding impeller
Clean impeller, replace
- bearing damages
Contact Airflow customer service
- mechanical damages
Perform maintenance
Fan doesn’t
perform properly
- insufficient air
conveyance
Check inflow and outflow / keep
clear
- wrong voltage
Check connection / modify
- contamination
Clean
- insufficient back-flow
Extend back-flow
DANGER
DANGER

8.2
Decommissioning and disposal
Safety instructions listed in Chapter 1.2 must be observed!
During transportation safety instructions listed in Chapter 1.4 must be
observed.
Parts and components of the fan which have reached the end of their lifespan, for
instance because of the wear, corrosion, mechanical loading, fatigue and/or other
effects that could not be directly discerned, should be disposed in accordance with
local and international laws and regulations. The same applies to auxiliary materials
such as oils, greases or other substances. The conscious or unconscious re-use of
used components such as impellers, bearings, belts, etc. may endanger persons, the
environment as well as the equipment itself. Relevant locally operating regulations
must be observed and applied.
CAUTION

Warranty:
Applicable to units installed and used in the United Kingdom. Airflows Warranty coversthe QuietAir fan for TWO years. The Warranty can be upgraded to THREE
years from date of purchase against faulty material or workmanship by registering on our web site at www.airflow.com.
The Warranty coversthe product onlyand not the installation cost.
In the eventof any defective parts being found, Airflow Developments Ltd reserve the right to repair or at our discretion replace without charge provided that the
unit
1. Has been installed and used in accordance with the fitting and wiring instructions supplied with each unit
2. Has not been connected to an unsuitable electrical supply
3. Has not been subjected to issue, neglect or damage.
4. Has not been modified or repaired by any person not authorised by Airflow Developments Ltd.
5. Has been installed in accordance with latest Building Regulations and IEE wiringregulations.
Airflow Developments shall not be liable for anyloss, injury or other consequential damage,in the eventof a failure of the equipment or arising from, or in
connection with, the equipment excepting onlythat nothing in this condition shall be construed as to exclude or restrict liability for negligence.
This warranty does not in anyway affect any statutory or other consumer rights.
Airflow Developments Limited
Aidelle House, Lancaster Road, Cressex Business Park
High Wycombe,B u ck i n g h a m sh i r e
HP123QP, United K i n gdom
E-mail: [email protected]
Telephone: [phone]
Facsimile: [phone]
airflow.com