CSR Bradford Maestro BAL User manual

Installation Guide
Maestro BAL

2
Item Checklist & Additional Tools Required For Installation
1Maestro BAL Ventilator 1
2Speed Controller 1
3Power Supply 1
4Fixing Strap 1
5Speed Controller Fixing Screws 2
6Product Manual 1
7Warranty Document 1
Soft Rubber Hammer
Caulking Gun
Fire Rated Sealant
Marker Pen
Nibbler or Similar Cutting Tool (Metal roof only)
10G Tek Screws or Sealed Rivets (Metal roof only)
Additional Parts & Tools Required for Metal Roof (Not Supplied)
Included Parts: Qty:
Soft Rubber Hammer
Caulking Gun
Selleys 435g Grey Flame Flex Fire And Acoustic Sealant
Angle grinder with cutting disc (Tile roof only)
Screw/Nail for fastening Fixing Strap (Tile roof only)
Knife (Sarked roof only)
Foil Tape (Sarked roof only)
Marker Pen
Additional Parts & Tools Required for Tile Roof (Not Supplied)
Note : This product requires a general power outlet (GPO) for operation.

3
4
1
2
3

4
Warnings and Important Notices
WARNING: Do not proceed with the installation until you have read
the entire installation guide, including these warnings.
INSTALL AT YOUR OWN RISK
The installation of this product may involve working at heights which could be
dangerous and lead to the potential risk of death, personal injury or property
damage. Please be aware of the following before installing this product.
• Follow the state or territory regulator OH&S guidelines for working at
heights (e.g. roof work), electrical, working in elevated temperatures
(e.g. roof space in summer). For more information on your state’s OH&S
guidelines for working at heights, please refer to:
https://www.safeworkaustralia.gov.au/heights.
• Installation requires working at heights. Use caution to minimise risks
by:
- Clearing the area around the workspace.
- Not walking on surfaces that are slippery, wet or dusty.
- Using appropriate equipment: harness, ladders with handrail,
enclosed shoes, etc.
• Wear personal protective equipment when handling and installing
products.
• Warning: Product fan will rotate immediately when connected to
power - Do Not connect to mains power until the installation is
complete and it is safe to do so.
• Warning: Check for electrical hazards before entering roof space and
installing this product. Be aware of electrical cabling in the roof during
installation and consult an electrician for further advice if required.
• DO NOT attempt to put anything into the running fan blades as
this many cause personal injury and/or damage to the unit.

5
Warnings and Important Notices
• When installing eave vents be careful to determine that the eave
cladding material does not contain Asbestos.
• This product is not suitable for use in cyclonic regions..
• Always use the provided power supply and speed controller to power
the fan.
• If mains electrical connections are required (e.g. wiring a power
point), then they must be carried out by a licensed electrician in
accordance with local wiring codes and regulations.
• Power supply and speed controller are for dry indoor use only.
Ensure that the power supply and speed controller are not left on
damp surfaces, fasten to the structure with screws or cable ties as
required.
• Only use one Maestro BAL per speed controller and power supply.

6
Installation - Tiled Roof
STEP 1
Select a suitable
position for the
ventilator on the roof
no higher than the third
row of tiles down from
the ridge.
Take care to check
that there are no
obstructions below the
tile such as a rafter.
The removal of a tile higher than the third row down from
the ridge may damage the ridge tile pointing and is NOT
recommended.
STEP 2
Position the ventilator in
the desired location to
determine which tiles need
to be removed or cut.
Mark out position and
determine tiles to be
removed or cut - note that
a section roughly the size
of the round section of the
ventilator throat needs to
be removed.

7
Installation - Tiled Roof
STEP 3
Remove a single
complete tile as
required.
Cut other tiles as
required to t the the
opening of the ventilator
throat.
STEP 4
If the roof is sarked, cut
sarking in a cross and fold
back onto itself to give a
300mm opening.
Tape the corners to the
surrounding sarking with
foil tape to prevent them
fouling the ventilator.
Apply a 4mm bead of re
rated sealant along the
tile cut-out.
Cut Tiles
Apply re rated
sealant here.
Depending on roof construction a tile batten may be
obstructing a clear access to the throat. This batten can be
left in place with the Maestro BAL sitting above it.
A continuous 4mm bead of re rated sealant here to achieve BAL
compliance.

8
Installation - Tiled Roof
STEP 5
Fit the ventilator into
place and ensure
surrounding tiles are
tted securely.
STEP 6
Fold and form the front
edge of the ashing to
seal against the tiles
below.
Using a soft hammer,
carefully dress the front
and sides of the ashing
into the shape of the tiles.
For BAL installs this
must be done with care
to ensure that no gaps
greater than 2mm are
present.
SOFT
HAMMER
For BAL compliance, no gaps greater than 2mm may be present.
A water tight install can be achieved by carefully forming the
ashing to the tile proles, without the use of sealant.

9
Installation - Tiled Roof
STEP 8
From the inside of the
roof.
Form the xing strap so
that one end can hook
over the ashing upstand
From within the roof
space, hook the xing
strap over the edge of the
ashing upstand at the
lowest point of the roof.
Screw/nail (not supplied)
the xing strap to the
bottom batten to securely
hold the ventilator down.
For additional weather
proong turn the rear edge
of the ashing up so that
it seals against the tiles
above.
Turning the rear of the ashing upwards
allows it to act as a gutter to prevent any
wind driven water from entering the roof
space.
FLASHING UPSTAND
FIXING STRAP
SCREW/NAIL
BATTEN
STEP 7
Apply a bead of re rated
sealant along the ashing
perimeter.

10
Installation - Metal Roof
STEP 1
Select a suitable position for
the ventilator.
Slip the top edge of the
ashing under the ridge cap
by at least 50mm and mark
position.
To install the vent lower
down the roof, appropriate
backashing must be
installed, extending back to
the ridge capping.
STEP 2
Remove the ventilator
and cut a 300mm round
opening around the
centre of the position
marks.
Apply a 4mm bead
of re rated sealant
around the 300mm
opening.
Ensure that the ashing covers the roof corrugations or ribs
equally and that it is located between roof rafters.
MARK CENTRE
Note: Ridge capping screws may need to be removed whilst performing
installation. Upon completion, return the xing screws to the previous positions

11
Installation - Metal Roof
STEP 3
Return the Maestro BAL
to the roof, positioning
it over the cutout.
Ensure that the top of
the ashing is slipped
under the ridge capping.
For lower pitched roofs,
turn up the top edge
of the ashing before
slipping under ridge
capping. This will help
prevent water ingress.
STEP 4
Using a soft rubber
hammer, carefully
work around the sides
and lower edge of the
ashing to form it into
the corrugations of the
metal sheeting prole.
For BAL installs this
must be done with care
to ensure that no gaps
greater than 2mm are
present.
For BAL compliance, no gaps greater than 2mm may be present.
A water tight install can be achieved by carefully forming the
ashing to the roof sheeting prole, without the use of sealant.

12
Installation - Metal Roof
STEP 5
Apply a bead of re
rated sealant around the
ashing perimeter.
Secure the ashing
to the metal sheeting
with Tek screws or
sealed rivets along the
3 exposed edges of the
ashing. Approximately
10 required (not
supplied).
A continuous bead of re rated sealant must form a
bond between the ventilator ashing & roof sheet for BAL
compliance.

13
Maintenance - Ember Screen
STEP 1
Remove the 4 screws securing
the dome
REMOVE SCREWS
Turn off the power to the Maestro BAL before conducting any
maintenance. Follow the safety instructions in the front of this
manual.
The only maintenance required for the Maestro BAL is the occasional cleaning of
the stainless steel ember screen. Time between cleaning depends on operating
conditions, however yearly cleaning should be performed to maintain optimal
performance of the product’s airow. To clean the ember screen follow the
instructions below.
STEP 2
Lift the dome to remove it and
place on a safe surface to
prevent scratching or damage.
Use brush or vacuum cleaner
to remove the dust/debris on
the ember screen.

14
Maintenance - Sparkguard
REFIX SCREWS
STEP 4
Rex the dome to the Maestro
BAL housing with the 4 screws
removed in step 1.
Tighten until snug.
STEP 3
Place the dome onto the unit.
Line up the holes in the dome with
the mounting points on the top of
the fan housing.

15
FAQ & Troubleshooting
Q: Do I need an electrician to install the Maestro BAL?
A: If you have an avaliable power point that can be reached then no
electrician in required. If a power point is unavaliable then an
electrician will be required to install one.
Q: Is the Maestro BAL, BAL Compliant?
A: If installed as per the instructions then the Maestro BAL is compliant
for all BAL levels up to BAL-40. The Maestro BAL is not suitable or
compliant for BAL-FZ.
Q: Can I duct the Maestro BAL?
A: Yes, with a suitable collar the Maestro BAL can be ducted. Accessories
for ducting Maestro BAL can be purchased from Bradford Ventilation.
Call for further details.
Q: How do I connect when my only power point is more than 1.5 away
from unit?
A: If the power source is to far away, one can purchase from Bradford
Ventilation an extension lead 10m long to allow more distant
placement of the unit.
Problem Possible Actions
System not running
- Controller may be in AUTO mode
(it will not run at a temperature
less than 30°C or when moisture
levels are below 65%R.H when in
AUTO). Change to LO to conrm the
controller is functioning. Return
setting to AUTO.
- Check power is on and all electrical
connections are secure.
Water leaks when raining - Check installation integrity of
ventilator on roof