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General Wiring Instructions - Vent-Axia MFQ35014 Installation And Wiring Instructions

Square mixed flow fans

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Suggested fan mounting using mounting feet and anti-vibration mounts.

GENERAL WIRING INSTRUCTIONS

WARNING – THE FAN AND ANY ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING INSTALLATION AND/OR
MAINTENANCE. THE EQUIPMENT MUST BE EARTHED.
1. All electrical connections should be made by a properly qualified electrician.
2. All wiring and connections must be carried out in accordance with current
regulations.
3. To comply with safety standards, an all pole isolator switch with a contact gap of at
least 3mm must be fitted adjacent to the fan.
4. Remove the cover from the terminal box to expose the main terminal block and the
thermal protection block (TK). The thermal protection device fitted is an automatic
resetting type which must always be included in the circuit. For ducted applications a
manual reset is required, an ancillary circuit will be required with the TK switch
connected into the circuit. To comply with safety standards, this product must
be installed with Vent-Axia overload relays or controls.
5. Connect the power supply from the local isolator (via any appropriate controls if
fitted) to the terminal box via the supplied cable gland using between 4.0mm and
7.0mm diameter cable. Refer to the wiring diagrams and select the appropriate
connections for the fan, controller or other devices as being installed. If in doubt,
please ask.
6. CAUTION: In order to avoid a hazard due to inadvertent resetting of the thermal
cut-out, this appliance must not be supplied through an external switching device,
such as a timer, or connected to a circuit that is regularly switched on and off by the
utility
7. Ensure that all earth connections have been made.
8. After making connections inside the terminal box, replace the cover ensuring that the
sealing gasket is in place. Also ensure that all cable gland nuts, grommets etc. have
been used correctly to prevent the ingress of water.
NOTES ON RUNNING
Before Connecting the power supply and running the Fan Check...
Are all links and wiring complete as per wiring diagram?
Are all fixings secured?
Are all relevant guards fitted?
Are all Circuit protection devices fitted?
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