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5.1
HEALTH AND SAFETY
Blackheat cannot be responsible for ensuring that all
appropriate safety measures are undertaken prior to
installation; this is entirely the responsibility of the
installer. If the manufacturer installs the appliance, it
is essential that the contractor, the sub-contractor, or
the owner indicate the presence of combustible mate-
rials or halogenated hydrocarbons anywhere in the
premises.
5.2
RELATED DOCUMENTS
Notwithstanding their limited scope, the appliance
should be installed in accordance with relevant
National Codes.
5.3
CLEARANCES TO COMBUSTIBLES
Before proceeding with installation, ensure that
proper clearances to combustible materials will be
observed in the final installed position of the heater.
Clearance distances may be found in Section 2 of
these instructions.
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5.4.1
Prepare a work area corresponding to the size of
heater selected. The area should be clear and free of
debris. The manufacturers approved layout drawing
should be referred to so that the work area is conve-
nient for the final system position.
5.4.2
Establish both the centre point for the unit, and the
centre line of the heater run within the area to be
heated. Along the established centre line of the heat-
ing run, layout two of the appropriate heater configura-
tions (Figure 9, 10 or 11). The burner assemblies
should be at opposite ends of the heater run and
should be configured as shown in Figure 13.
5.4.3
At a point directly above the established centre of the
heater system, install a suspension chain for the fan
assembly. Moving outward from this point, and along
the established centre line, establish the remainder of
the chain suspension locations.
5.4.4
Suspend the tube and reflector hangers for the fan
tube, and raise the fan tubes into position.
5.4.5
Assemble the two halves of the tube clamp package
using the hex carriage bolt, hex nut and flat washer.
Attach the clamp to the tube and reflector hanger, and
slide the hanger into place on the burner tube (see
Figure 6).
5.4.6
The hanger must be located within 150 mm of the
flange. Slide the next tube and reflector hanger onto
the end of the burner tube. Making sure that the sus-
pension hooks of the hangers are uppermost, lift the
burner tube into the position required. Suspend the
burner tube by connecting the tube and reflector
hangers to chains using the bow shackles provided.
Repeat procedure for the burner tube at the other end.
5.4.7
Connect the burner and fan tubes using the stainless
steel couplings. Raise the centre tee into position
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between the end of the fan tubes and secure using
the damper couplings provided.
5.4.8
Slide another tube and reflector hanger onto the next
tube and locate it according to the appropriate Figure.
Lift the tube into its position and connect it with the
burner tube using a stainless steel coupling. Repeat
this procedure to suspend the remaining tube(s) and
connect them to the heater one by one. For details of
the coupling connection, see Figure 7.
5.4.9
To assemble the coupling, hook the free end of the
coupling sleeve into the lanced clip. Place the wide
end of the tapered slide bar on the coupling so that it
moves toward the lanced clip. Insert the two tube
ends into the coupling. Be sure the tube ends are in
line and are flush against the stop pins inside the cou-
pling.
Hammer-drive the slide bar until the coupling is
secured snugly to the tubes. Overdriving the slide bar
will distort the coupling or slide bar lip and will
decrease the holding capability of the coupling.
Coupling should be tight when the slide bar is ±50
mm from the end of the coupling.
5.4.10 Place a reflector over the flanged burner tube and
slide it inside the first tube and reflector hanger. Slide
the next reflector under the first reflector. Overlap the
reflectors using the distance specified in the assem-
bly drawings. Secure the two reflectors in place using
the reflector support straps. Assemble the reflector
support strap (see Figure 8).
NOTE:
Remove PVC coat from stainless steel reflec-
tors.
5.4.11 Attach the remaining reflectors to the heater using the
same method. Be sure to alternate the overlap of the
reflectors as shown in the assembly drawings.
Starting at the first reflector support, and alternating
every other support down the length of the heater, the
screws should be loosened 2 mm to allow for expan-
sion of the heating tubes during operation.
5.4.12 After assembling the reflectors, attach the reflector
end caps to the open ends of the reflectors. Punch out
the center section of the end cap, and attach the end
cap to the reflector using at least 6 of the U-clips pro-
vided.
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5.5.1
Place the gasket on the flange of the burner tube.
Carefully insert the flanged end into the burner box.
Secure the burner on the burner tube using the four
mounting bolts and washers. Use a spanner to tighten
the bolts evenly.
5.5.2
Place the fan assembly onto the branch of the tee;
slide the fan assembly up to its stop. Tighten the pinch
screw on the assembly making sure that the fan out-
let is positioned as required. Attach hanging chain to
the flange.
