L.B. White Premier 350 Owner's Manual And Instructions page 29

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
FIG. 38
SINGLE STAGE
OUTLET PRESSURE TAP
GAUGE AT VALVE OUTLET
FIG. 39
TWO STAGE
OUTLET
GAUGE
OFF
ON
LO
GAS CONTROL
LOW HEAT
C. Reading Pressures
1. With the heater operating, the pressure gauges should
read the pressures specifi ed on the dataplate.
2. Do the readings at the inlet and outlet pressure gauges
agree with that specifi ed on the dataplate? If so, then
no further checking or adjustment is required. Proceed
to section D.
3. If the inlet pressures do not agree with that specifi ed
on the dataplate, then the regulator controlling gas
pressure to the heater requires adjustment.
4. If the inlet pressure is correct but the burner manifold
pressure does not agree with that specifi ed on the
dataplate, then the gas control valve's internal pressure
regulator needs adjustment:
INLET PRESSURE TYPE
GAUGE AT VALVE INLET
INTERNAL PRESSURE REGULATOR
INLET
GAUGE
HI
HIGH HEAT
Owner's Manual • Premier 350
Premier Ductable Heaters
Premier 350DF Heater:
-- Remove the regulator cap on the control valve.
-- Using a standard screwdriver turn the adjusting
screw clockwise (to increase pressure) or counter-
clockwise
(to decrease pressure) until the burner manifold
pressure is set.
-- Install regulator cap.
-- Proceed to COMPLETION.
Premier 350 Propane Gas Heater
-- Turn the thermostat down to its lowest setting.
-- Remove the cap from the high and low heat adjust-
ing screws at the two stage pressure regulator on
the gas control valve.
-- Slowly turn up the thermostat until a pressure is read
no greater than 2.0 in.W.C./.49 kPa at the outlet
pressure gauge.
-- If less than these pressures is observed, the low
heat setting at the regulator on the gas control will
require adjusting.
-- Turn clockwise to increase, or counterclockwise to
decrease pressure.
-- Turn the thermostat completely up.
-- You should see the gas pressure increase from 2.0
in. W.C./ .49 kPa at low heat to 8.0 in.W.C./2.0 kPa
high heat.
-- If less or greater than these pressure are observed
the high heat setting must be adjusted clockwise or
counterclockwise accordingly until proper pressure
is achieved.
D. Completion
1. Once the proper inlet and burner manifold pressures
have been confi rmed and/or properly set, close the
fuel supply valve to the heater and allow the heater
to burn off any gas remaining in the gas supply line.
2. Disconnect the heater from its electrical supply and
close fuel supply valve.
3. Remove the gauges.
4. Install pressure tap plugs.
5. Open fuel supply valve and reconnect electrical
supply to heater. Start the heater and check for gas
leaks.
6. Set thermostat to desired temperature.
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