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Premier Ductable Heaters
Owner’s Manual • Premier 350
23
WARNING
Burn Hazard
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gas control valve.
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physical damage occurs to the control valve
assembly.
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or explosions, leading to injury or death to
humans, and property damage.
FIG. 30
4. Remove burner retaining bolt from under base at gas
control end of heater. See Fig. 31.
FIG. 31
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FIG. 31
Gas Pressure Checks
ATTENTION
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followed in checking gas pressures.
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with this procedure.
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is Inlet Pressure and gas pressure measured at the
outlet of the gas valve is Burner Manifold Pressure.
MATERIALS REQUIRED
Quantity Description
2
Gas pressure gauges capable of
reading up to 35 in.W.C./8.7 kPa.
(Available from L.B.White Company
if desired)
A. Preparation
1. Disconnect the heater from the electrical supply and
close the fuel supply valve to the heater.
2. Open the case access panel at burner end of heater.
3. Brush or blow off any dust or dirt in the vicinity of the
gas control valve.
B. Gauge Installation
1. Locate the gas control pressure tap, see Fig. 33.
Remove the pressure tap plugs using a 3/16 in.
allen key.
2. Securely connect pressure gauges at these points.
3. Open the fuel supply valves to the heater and recon-
nect the heater electrical supply.
4. Start the heater
Screws
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Copper washer
Burner bolt