Jetmaster Universal 500 Manual

BUILDER - AFTER READING
THESE INSTRUCTIONS
INSTALLATION
& OPERATING
INSTRUCTIONS
PLEASE HAND TO OWNER

CONTENTS
1. Installation of Universal model into a new Home
2. Installation of Universal model into existing masonry fireplace
3. Installation of Hex, Lynx and Victor models
4. Installation of Falcon and Heron models
5. Installation of Built-in Barbecues
9. General Hints
6. Gas-operated built-in barbecues
Installation of free-standing barbecues
7.
8. Operation of Jetmaster Fireplace Units (Solid fuel)
10. Contact Details
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1.1 Size of Unit
For satisfactory heating the size of the Jetmaster fireplace unit should be
related to the size of the room. If rooms interlead without provision for
closing by means of doors or heavy curtains, the entire cubic capacity
must be taken into account.
The heating capacities of all units are shown in the catalogue. However,
please note that these capacities are conservative and the heating capacity
may be increased by up to 25% with a well packed fire.
1.2 Chimney Flues:
(a) Recommended flue sizes are:
Model Square Round
or Rectangular
500, 600, 700S, 700D 200 x 200mm 225mm
700 Double-sided 300 x 300mm 350mm
850 200 x 300mm 250mm
1050 200 x 400mm 300mm
1200/1500 350 x 500mm 450mm
The cross-sectional area of the flue must be within 20% of the above-
mentioned sizes throughout its length and preferably straight.
(b) It is recommended that moulded flue liners (square or rectangular)
with matching 45E(side or back) bends if required, be used as they
provide a perfect flue of the correct size throughout. When liners are
used, surrounding brickwork can be reduced to 110mm. Savings on
brickwork and plastering offset the cost of the liners.
(c) Steel square or rectangular flues can be manufactured on request
where an exposed flue is desired or where a masonry chimney has
not been provided for.
(d) If flue liners are not used, a straight flue is preferable, but if there are
any bends ensure that there is no reduction in area at these points
and that there is no mortar blockage. The inside brickwork of the
chimney must be plastered to a semi-smooth finish.
(e) If the flue extends outside a wall the moulded flue must be
supported to ground level on a concrete foundation in brickwork.
1.3 Insulation
(a) When installing, all the built-in surfaces of the Jetmaster firebox
and smoke gather must be insulated with the fibreglass supplied with
the unit. This should be held in position with adhesive tape.
1. Installation of Universal model into a new Home
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The reason for insulating the unit is not only to reduce heat transfer
to the brickwork, but to provide an expansion joint to prevent
cracking of masonary or plaster when the unit is in use. DO NOT
compress the insulation material more than necessary.
(b) Ensure that the gap between the moulded flue liner and the smoke
gather is packed with fibreglass, but make certain that the fibreglass
does not impinge on the smoke outlet.
1.4 Special Points to Note
(a) It is strongly recommended that the Jetmaster fireplace unit is built
in at the initial stages of brickwork construction. By just leaving an
opening for the later installation of the firebox and smoke gather
will involve considerably more work and patching.
(b) Where a Superjet i.e. rear fan unit is to be installed, ensure that the
electrical connection has been provided for and that the air inlet
cover plate allows for easy access to the fan. All electrical
connections must be performed by a licensed wireman and
connected according to local authority specifications.
(c) It is better to build the chimney flue slightly too large than too small.
Ensure that the chimney height is at least 0,5 metres higher than
the roof apex, unless the chimney flue is at least 3 m from the
apex, and that the top of the chimney is weathered (see Fig. 1) or a
Jetmaster cowl is fitted (refer Fig. 8).
(d) With thatch - or timber-roofed homes always ensure that the
chimney extends above the apex of the roof by 1 m minimum. If a
cowl is necessary, a Jetmaster rotating cowl or a spark arrestor
should be fitted
(e) DO NOT under any circumstances recess the frame of the firebox
more than 150 mm behind the face of the brickwork or plaster.
(f) The air inlet at the lower front of the firebox MUST be left open and
unobstructed.
(g) Where two or more units are provided for in one stucture, ensure
that each unit has its own flue right to the top of the chimney.
(h) IMPORTANT: Combustible materials should not be fitted within
200 mm of the sides of the firebox or 450 mm above the firebox
unless adequate provisions are made to insulate such materials.
(i) A non-combutible hearth must be constructed (tiles, marble,
granite, slate etc.) at least 200 mm wider on each side of firebox and
at least 400mm to the front. Make sure the air inlet is unobstruc-
ted.
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Installation of Universal model into a new home
Fig. 1 - Typical flush installation
Fit a Jetmaster cowl
(refer Fig. 8)
110 mm brickwork is adequate
if liners are used.
Moulded flue liner
Seal joint with fibreglass
insulation (supplied)
Fibreglass
insulation
Hot air
Smoke
Air inlet - leave open
Hearth -
by builder
Please read written instructions in conjunction with these diagrams.
3
Min: Height
3.6 Metres +
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Fig. 2 - Recessed installation using optional steel lintel and showing the
Superjet fan box
Weather top of chimney as
shown or fit Jetmaster cowl
(refer Fig. 8)
110 mm brickwork is adequate
if liners are used.
Moulded flue liner
Seal joint with fibreglass
insulation (supplied)
Fibreglass
insulation
Hot air
Max. recess 150 mm
Superjet fanbox and
air inlet cover plate
Smoke
Air inlet - leave open
Hearth -
by builder
Please read written instructions in conjunction with these diagrams.
4
Min: Height
3.6 Metres +
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5
Additional heat can be obtained from an existing fireplace by installing a
Jetmaster unit either from the regular range or custom-built to fit with a minimum
of building work.
2.1 Unit size and chimney flue
The size of Jetmaster firebox that can be installed into your existing
masonry fireplace is determined by the minimum dimensions of the
chimney flue.
Minimum flue areas are:
Model 2
500, 600 - 300 cm2
700S, 700D - 366 cm2
700 Double sided - 950 cm2
850 - 510 cm2
1050 - 730 cm2
1200 - 1175 cm2
1500 - 1475 cm
Before installing the firebox, ensure that the flue is of the correct area
throughout its entire length.
This can be done by lowering a torch (attached to strong cord) down the
chimney.
2.2 (a) Recess too large:
If the size of the firebox is smaller than the size of the recess, this can be
reduced by laying bricks at the sides and/or back and where necessary
between the top of the unit and the underside of the lintel or a plinth
can be constructed (refer Fig. 3). Leaving enough room for the
insulation.
(b) Recess too small:
The recess can be made deeper by removing the roll back and
smokeshelf. If too narrow cut away brickwork at sides and if height is
too low, remove the lintel and replace it at the required height.
NOTE: Allow 25 mm all round for the fibreglass insulation.
2.3 The two flue outlets must marry up with the existing chimney as indicated
in Fig. 3.
2.4 Any cracks or cavities in the recess must be repaired and sealed.
2.5 Tape the insulation to the back and sides of the Jetmaster and slide into the
recess, taking care not to snag the fibreglass insulation against the sides.
2. Installation of Universal model into existing masonry fireplaces
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Installation of Universal model into existing masonry fireplaces
(Usually installed with bolt-on smoke gather removed)
Existing chimney gather
Hot air
Cement filler
Existing chimney breast
Fig. 3 - Section
Do not block
smoke outlets
Lintel
Max. recess 150 mm
Air lintel - leave open
Form plinth if required
Existing hearth
Smoke
Masonry fill for
spaces more than 75 mm
Please read written instructions in conjunction with these diagrams.
Fibreglass insulation (supplied)
NOTE: (a) Do not recess the frame of the firebox more than 150 mm.
(b) Ensure the smoke outlet openings are not obstructed.
(c) Air inlet at lower front of unit must not be obstructed.
2.6 Seal the firebox into position using masonry and mortar, ensuring that any
air leakage around the frame is eliminated. Non-combustible strips may be
required as indicated in Fig. 4. Mortar can be packed between the firebox
side and brickwork by hand through the damper opening.
2.7 Allow the masonry work to cure for a minimum of four days before
lighting a fire.
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Fig. 4 - Plan view
A
Fireplace recess slightly too
large (less than 75 mm) - pack
with extra layers of fibreglass
insulation
B
Fireplace recess too large
(more than 75 mm) - use
bricks to build up and reduce
size
Fibreglass
insulation
(supplied)
Infill strips of marble/stone/
tiles 10 mm overlap in front
or behind frame
Close gap with non-combustible
strip screwed to frame
Fireplace surround
Smoke outlets
Hearth
Please read written instructions in conjunction with these diagrams.
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3.1 Carefully cut a hole through the ceiling in a position away from any timber
beams or brandering, making sure that the opening is approx. 25 mm
larger than the steel flue. Use the ceiling escutcheon plate as a template
and add 12 mm all round to that dimension.
NOTE: To position the flue between the beams and brandering hammer a
nail downwards through the ceiling in the roof space.
3.2 Remove roof tiles in the immediate area or cut a similar hole through the
roofing material.
3.3 If a hearth is to be constructed (e.g. in a carpeted room), use a plumb line
from the centre of the hole in the ceiling to determine the position of the
hearth.
3.4 In the case of installing the Victor model, measure the position of the rear
securing bracket off the unit and fix the bracket to the wall by means of wall
plugs.
3.5 Position the fireplace unit and flue section.
NOTE: With the Hex and Lynx model, ensure that the butterfly damper is at
the base and rear of the flue.
3.6 The chimney flue must now be flashed at roof level with galvanised iron or
lead flashing. (Normally done by a plumber.) If a Rotating Hex model is
to be installed, the flashing top is circular in shape to allow the steel flue to
turn.
3.7 Push down the weathering collar over the flue until it covers the top of the
flashing by about 50 mm. Seal this against the flue using the black silicone
sealer (supplied).
3.8 Fit the cowl. In extremely windy areas it may be necessary to secure the
cowl to the flue by means of self-tapping screws.
3.9 If the flue is on more than one section it is advisable to seal the joint with
black silicone sealer (supplied) and secure the sections by means of self-
tapping screws. This is essential with the rotating Hex models.
3.10 Insulate the steel flue between the roof and ceiling with the insulation
material supplied, binding the fibreglass into position with light-gauge wire
meshing (also supplied).
3.11 Fix the escutcheon plate to the exposed ceiling to ensure a neat join where
the flue passes through.
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3. Installation of Hex, Lynx and Victor models
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