5
• Ensure system operation is safe in event of power cut / power outage / disruption to power supply. If ventilation is sto-
pped due to disruption to power supply, ensure no risk due to build-up of hazardous substance, excessive temperature
etc. Care may be needed when restarting fan after disruption to power supply.
• If the fan shall be operated also for daily ventilation, this shall be subject to weather conditions at the time. It may be
recommended to install wind and/or rain sensors, so that the HATCH will not open in order to prevent rain ingress or
damage to the opening mechanism due to strong wind. However, these sensors shall not have any priority whatsover
in case of fi re emergency. Under such event, the THGT-HATCH shall operate regardless of the weather conditions.
Safe installation
• Avoid risk of foreign objects, debris being drawn into, or falling into fan impeller.
• Ensure no objects or tools remain resting on the HATCH’s frame, as the cover or opening mechanism may be damaged
when closing.
• Allow safe access to fan for inspection, maintenance, replacement of parts, cleaning, especially for dust hazards.
• Access with suitable lifting to repair in-situ, should be provided, greater than largest impeller / motor dimension
• Ensure all necessary safety guards are fi tted and secure to prevent injury.
• Axial fans should be installed with clear, unobstructed airfl ow upstream and downstream, if fl exible connectors are
fi tted on the inlet side to minimize vibration transmission, these should be taught and not encroach into airstream to
disrupt airfl ow.
• The THGT-HATCH shall be installed so that any prevailing winds will blow against the opening motion.
Safe commissioning
• Installer to ensure safe to start fan and commission, which may include determination of installed air duty and system
pressure if the fan inlet is connected to ductwork.
Safe maintenance
• The user is responsible for effective maintenance, replacement of parts, cleaning, especially where dust may form
inside the fan.
• Do not remove safety protection guards or open access doors when fan is in operation, or if hazardous substance is
present. Fan equipment should be electrically isolated and locked out before any access or work is started.
• Refer to specifi c motor Instructions for further guidance.
Support
• If there is any problem with this unit contact your local S&P Distributor. S&P reserve the right to make modifi cations
without prior notice.
Safety risks – summary list
• Installation: incorrect installation or function represents a risk to safety.
• Rotational speed: identifi ed on fan name plate and motor. Never exceed this speed.
• Rotation of impeller: identifi ed on fan with direction arrows. Do not run impeller in reverse.
• Working temperature: identifi ed on fan nameplate and motor for S1 duty cycle. Never exceed this range.
• Protection devices: These should always be operational and never disconnected for S1 duty cycle.
• Electrical risks: motor name plate data should never be exceeded, effective connection to earth, and all checked re-
gularly every 6 months.
• Power supply should be via a protected source to enable fan to run under emergency fi re smoke conditions, Direct on
line.
• Foreign bodies: ensure no risk from debris, or material that could be drawn into fan.
1.3. TRANSPORT, LIFTING
Transport and lifting must be carried out by competent personnel and in accordance with applicable International, Na-
tional and Local regulations.
When transporting this unit, recommend that:
• Fan equipment and packaging are protected from adverse atmosphere, especially water, sand, dust, vibration and
excessive temperature.
• The fan should be protected from any impact, or risk of damage.
When lifting / moving this unit, recommend that:
• All identifi ed fan lifting points are used to support weight and ensure safe transport via hoists, sling, spreader bar as
appropriate, without damage. Follow lifting diagram affi xed to the unit’s side. Maximum included angle of any support
sling must not exceed 30°.
• All slings or lifting forks under the fan equipment are safe, and spaced to avoid tipping or slipping or damage to fan
equipment.
• Any lifting equipment must be safe and of suitable capacity for weight and size, plus lift distance.
