User Guide

Xpelair AWC
Fan Controller
These instructions are for the Installation and Operation of the
AWC Fan Controller only. For Fan Installation and Operating
Instructions refer to literature provided with appropriate fan.
General Information
Description
This appliance is designed to control the
operation of Xpelair NWAN Whispair fan range.
It is designed to minimise the temperature
differential between high and low levels in large
buildings. The unit is supplied with two
temperature sensors and can be used to
operate up to ten NWAN ceiling sweep fans.
The AWC can be operated in either automatic
or manual modes.
IN AUTOMATIC MODE:
• If the control knob is set in the fully anti-
clockwise position, minimum fan speed
occurs when the difference in high and low
level temperatures is 3ºC or less; maximum
speed occurs when the difference is 6ºC or
more.
• If the control knob is set in the fully clockwise
position, minimum fan speed occurs when
the difference in high and low level
temperatures is 10ºC or less; maximum
speed occurs when the difference is 13ºC or
more.
• To reduce the temperature difference at
which the fan speed will vary, turn the control
knob anticlockwise. Increase by turning
clockwise.
IN MANUAL MODE:
• To reduce the fan speed, turn the knob
anticlockwise. To increase the fan speed, turn
it clockwise.
IN AUTOMATIC AND MANUAL MODES:
• The fan comes on automatically at full speed
for the first 10 seconds before reverting to
the speed selected.
• The AWC can be either surface or recess
mounted using the metal wall box supplied.
What the installer will need
• A double pole isolating switch with a
minimum contact gap of 3mm (Wall or Ceiling
mounted).
• Suitably rated 4-core cable to connect the
controller to the fan/s.
• Suitably rated 3-core cable to connect the
controller to the Main Electrical Supply.
If using flexible cable, suitable
glands incorporating cable clamps
must be fitted to the knockouts in
the Controller Box.
Refer to Fig 1.
Location of the Controller
• Not where ambient temperatures are likely to
exceed 50
0
• If installed in a kitchen the Controller must
not be mounted immediately above a cooker
or eye level grill.
• When intended for use in possible chemical
corrosive atmospheres, consult our Technical
Service Department (outside the UK contact
your local Xpelair distributor)
• If installed in a shower room or bathroom the
controller and isolating switch must be
situated so that they cannot be touched by
persons making use of the bath or shower.
Location of the Sensors
• Not where temperatures exceed 35
0
c
• Pointing away from walls or other
obstructions, to ensure adequate ventilation.
• High level sensor, above fan mounting height.
• Low level sensor, within 1m of the controller.
• When intended for use in possible chemical
corrosive atmospheres, consult our Technical
Service Department (Outside the UK contact
your local Xpelair distributor)
Installation and wiring must conform to
current IEE wiring regulations (UK), or local
appropriate regulations (other countries).
If you have any queries either before, during
or after the installation of the controller,
please do not hesitate to contact the UK
Xpelair hotline (number on back page).
Customers outside UK: contact your local
Xpelair distributor.
Installing the Controller
These installation instructions are for the
installation of the controller when used in
combination with Xpelair supplied fans.
The controller must be installed to
fixed wiring. Ensure the Main
Electrical Supply matches the rating
shown on the controller casing.
THIS APPLIANCE MUST BE EARTHED!
All installation must be supervised by a
qualified electrician.