Reznor RIHVL Unit Installation Manual - Manual (Page 15)

9.0 Commissioning
and Startup
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Be certain electrical supply matches voltage of unit.
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Check for proper grounding and polarity of the ignition system. The
direct spark ignition system cannot determine the presence of flame
if it is not electrically grounded to the burner; it will lockout and shut
off.
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Clearance to combustibles must be maintained. (See Paragraph
4.2.) Check location of sprinkler heads; high temperature heads
may be required. Space directly below the heater should be free of
objects that may overheat or prevent infrared energy from reaching
desired area. Post signs indicating maximum stacking height under
or near heater.
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Heater may be angle mounted only as specified. (See Paragraph
5.0.)
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Heater must be level and suspended according to instructions in
Paragraph 5.0. Be sure there are no gas or electric lines above or
below the heater.
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Adequate ventilation MUST be provided. (See Paragraph 2.2.)
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Gas piping and supply must meet requirements. (See Paragraph
6.0.) Purge air from gas supply line.
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Complete the installer record on page 20 and keep these instructions
for future reference.
P/N 131793R10, Page 15