Air Turbulation Strips
& Vent
When installing the air turbulators, make
sure that the strips fi t into the tube and
do not extend beyond the end of the
tube. See FIG. 9a.
FIG. 9a
REGARDLESS OF TUBE DESIGN:
-- Ensure the green clip is installed on the exhaust vent.
See Fig. 9b.
-- Insert the exhaust vent to the end of the last tube.
-- Push the exhaust vent until the tube is stopped at
the rivet.
FIG. 9b
GREEN
CLIP
INSERT STRIP ASSEMBLY
INTO LAST 10 FT. OF TUBE
OUTLET END
Sentry Tube Heaters
Sediment Trap Assembly
Assemble the tee, nipple, and cap to the nipple at
the gas inlet of heater. See Fig. 10. Use a wrench to
hold the pipe nipple when installing the sediment trap.
Tighten securely. The sediment trap assembly must
always be mounted in a vertical position. Check all
connections for gas leaks using approved gas leak
detectors.
FIG. 10
NIPPLE
TO GAS CONTROL VALVE INLET
Manual Shut-off
Valve, Hose &
Regulator
1. Assemble the components together. See Fig. 11.
This view shows general assembly of the compo-
nents. The regulator must always be mounted so its
vent, regardless of location on the regulator, is al-
ways pointed downward. Ensure hose is positioned
away from the heater.
2. Tighten all connections securely and check
for gas leaks
FIG. 11
REGULATOR VENT
TO CONTROL
VALVE INLET
Owner's Manual • Sentry
15
TEE
NIPPLE
CAP
REGULATOR
NIPPLE
VALVE, MANUAL
SHUT-OFF
GAS HOSE
ADAPTER
SEDIMENT TRAP