10
Sentry Tube Heaters
FIG. 4
DRAWING INLET AIR THROUGH SIDEWALLS
Use minimum length of 4 in. diameter fl ex duct when connecting 4 in. PVC to
burner box. An adapter connection for the burner box to the 6 in. PVC must be
obtained through local source.
General Installation Instructions
1. Read all safety precautions and follow L.B. White
recommendations when installing this heater. If during
the installation of the heater, you suspect that a part is
damaged or defective, call a qualifi ed service agency
for repair or replacement.
2. A qualifi ed service agency must check the heater upon
installation and periodically. This shall consist of the
following:
-- Start up and shut down of the heaters to test for proper
operation.
-- Leak check all gas pipe joints and gas hose
connections.
-- Gas pressure checks.
-- Ensuring the heater is properly positioned away from
combustible materials.
3. Heater installation must take into consideration proper
hanging height to allow for clearance to combustible
material.
Owner's Manual • Sentry
Install supports every 5 ft. to prevent inlet sagging
Secure inlet to wall
For inlet runs up to 20 ft., use smooth
4 in. iD PVC. For runs over 20 ft.,
use 6 in. ID PVC
Do not locate the heater's air inlet by
any building air inlet.
4. Ensure the heater installation does not inter-
fere with water, gas, or electrical lines.
5. Position the gas hose to prevent any contact
with the tubes, heat refl ectors, and burner
box.
6. Ensure that all accessories that ship with the
heater have been removed from shipping
containers and installed. This pertains to gas
hose, regulators, supports, hangers, etc.
7. This heater requires a regulated gas supply
to its gas inlet :
-- The regulator must be the proper design for
the application.
-- The regulator must control the inlet pressure
to the heater within the range specifi ed on the
dataplate.
Air inlet use
inlet cap,
24861 for 4
in. PVC. Can
also use 1/4 x
1/4 hardware
cloth for either
4 in. or 6 in.
PVC