VENT-AXIA EUROFLOW FANS INSTALLATION AND WIRING INSTRUCTIONS
IMPORTANT - READ THESE INSTRUCTIONS FULLY BEFORE COMMENCING
INSTALLATION
4. Plan the installation carefully, taking into
consideration the important points noted above.
Ensure there is adequate clearance for the hinged,
swing down access door. Securely mount the fan
via the fixing holes in the fan casing using appropriate
anti-vibration mounts, screws, bolts, rubber bushes,
studding etc.
GENERAL WIRING
WARNING
- ISOLATE MAINS SUPPLY BEFORE MAKING
CONNECTIONS
- THIS EQUIPMENT MUST BE EARTHED
The motor thermal protector (TK) MUST be
connected into the control circuit.
1. All electrical connections should be made by a
properly qualified electrician.
2. Remove the terminal box cover to expose the
terminal block. Pass the supply cable through a
grommet or cable gland (not supplied) in the terminal
box and make the connections as
indicated on the terminal marker label.
3. If using a Vent-Axia speed controller, the speed
controller should be supplied from the isolator switch.
NOTES ON RUNNING
Before switching on CHECK:
1. All mountings are secure.
2. Circuit protection devices are fitted.
3. Earth connections have been made and are secure.
ROUTINE INSPECTION/MAINTENANCE
THIS MUST BE UNDERTAKEN BY A COMPETENT
PERSON.
ISOLATE UNIT FROM ELECTRICAL SUPPLY AND
ENSURE THAT IT CANNOT BE ACCIDENTALLY
TURNED BACK ON.
1. We recommend that after three months the fan
should be inspected and cleaned to ensure there is
no build up of dirt or other deposits on the impeller
or motor. Thereafter, it should be checked and
cleaned periodically as experience dictates, or at
least twice a year. Please take care not to dislodge
any balancing weights fitted on the fan blades.
If the fan is handling dust laden air, we recommend
that a filter is fitted to the system (suitable filters are
available from Vent-Axia Ltd.).
2. All Vent-Axia EUROFLOW fan motors are fitted with
sealed for life bearings and therefore do not require
lubrication.
3. Check all fasteners and guards are secure.
1. Ensure that the mains supply voltage, frequency,
number of phases and power rating comply with the
details on the rating label.
2. All wiring must be in accordance with current I.E.E.
wiring regulations, (BS7671), or the appropriate
standards in your country. The equipment should
be provided with a local all pole isolator switch
having a contact separation of at least 3mm. We
recommend that wiring to the equipment terminal
box be made in flexible conduit to facilitate easy
maintenance.
3. This equipment must be earthed.
4. Ensure safety regulations and practices are adhered
to when installing and using this equipment.
5. When the fan is used to remove air from a room
containing a fuel burning appliance, the installer
must ensure that air replacement is adequate for
both the fan and the fuel burning appliance. If a fan
is used to supply air into a room, the installer must
ensure that the fan intake is located at least 600mm
away from any flue outlet.
6. This equipment should not be used where it is liable
to be subjected to water spray from hoses, etc., or
where duct ambient temperatures may exceed
40
O
C.
7. When the fan is used to handle moisture laden air,
a suitable condensate trap and drainage system
must be incorporated to ensure safe and healthy
operating conditions.
8. When wiring in conjunction with a speed controller,
a 5 step auto-transformer is recommended to ensure
low noise levels.
9. The motor thermal protector (TK) MUST be
connected into the control circuit.
DESCRIPTION
The EUROFLOW range of forward curved in-line fans
are designed to be positioned between lengths of
ducting. The design incorporates an inspection cover
for easy maintenance.
FAN MOUNTING
1. The fan is designed as an in line duct fan to be
positioned between lengths of ducting. Short duct
runs terminating close to the fan (i.e. within 1.5m)
require suitable guards.
2. The fan is supplied with flanges of Euronorm size
for ease of connection to the ductwork system.
3. The fan is suitable for mounting at any angle with the
fan supported via the mounting holes in the fan
casing. The use of flexible connectors at the fan inlet
and outlet is recommended to reduced noise and
vibration.